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fanquake 37095c7dc4
Merge bitcoin/bitcoin#25678: p2p: skip querying dns seeds if -onlynet disables IPv4 and IPv6 
385f5a4c3f p2p: Don't query DNS seeds when both IPv4 and IPv6 are unreachable (Martin Zumsande)
91f0a7fbb7 p2p: add only reachable addresses to addrman (Martin Zumsande)

Pull request description:

  Currently, `-onlynet` does not work well in connection with initial peer discovery, because DNS seeds only resolve to IPv6 and IPv4 adresses:
  With `-onlynet=i2p`, we would load clearnet addresses from DNS seeds into addrman, be content our addrman isn't empty so we don't try to query hardcoded seeds (although these exist for i2p!), and never attempt to make an automatic outbound connection.
  With `-onlynet=onion` and `-proxy` set, we wouldn't load addresses via DNS, but will make AddrFetch connections (through a tor exit node) to a random clearnet peer the DNS seed resolves to (see https://github.com/bitcoin/bitcoin/issues/6808#issuecomment-147652505), thus breaching the `-onlynet` preference of the user - this has been reported in the two issues listed below.

  This PR proposes two changes:
  1.) Don't load addresses that are unreachable (so that we wouldn't connect to them) into addrman. This is already the case for addresses received via p2p addr messages, this PR implements the same for addresses received from DNS seeds and fixed seeds. This means that in the case of `-onlynet=onion`, we wouldn't load fixed seed IPv4 addresses into addrman, only the onion ones.
  2.) Skip trying the DNS seeds if neither IPv4 nor IPv6 are reachable and move directly to adding the hardcoded seeds from networks we can connect to. This is done by soft-setting `-dnsseed` to 0 in this case, unless `-dnsseed=1` was explicitly specified, in which case we abort with an `InitError`.

  Fixes #6808
  Fixes #12344

ACKs for top commit:
  naumenkogs:
    utACK 385f5a4c3f
  vasild:
    ACK 385f5a4c3f

Tree-SHA512: 33a8c29faccb2d9b937b017dba4ef72c10e05e458ccf258f1aed3893bcc37c2e984ec8de998d2ecfa54282abbf44a132e97d98bbcc24a0dcf1871566016a9b91
2022-09-07 18:28:42 +01:00
..
bench Merge bitcoin/bitcoin#25734: wallet, refactor: #24584 follow-ups 2022-08-16 20:00:19 -04:00
common refactor: make GetRand a template, remove GetRandInt 2022-04-22 09:04:39 -05:00
compat compat: document redefining ssize_t when using MSVC 2022-07-20 13:10:12 +01:00
config
consensus Require callers of AcceptBlockHeader() to perform anti-dos checks 2022-08-29 08:10:35 -04:00
crc32c Update crc32c subtree to latest upstream master 2022-08-13 13:55:38 +01:00
crypto Use HashWriter where possible 2022-07-20 15:34:36 +02:00
index refactor: add LIFETIMEBOUND to blockfilter where needed 2022-08-31 16:51:32 +01:00
init Update -debug and -debugexclude help docs for severity level logging 2022-08-20 11:55:17 +02:00
interfaces Make validation interface capable of signalling header presync 2022-08-29 08:10:35 -04:00
ipc refactor: Block unsafe fs::path std::string conversion calls 2021-10-05 11:10:47 -04:00
kernel Make adjusted time type safe 2022-08-05 14:59:15 +02:00
leveldb Update leveldb-subtree subtree to latest upstream 2022-07-29 14:43:11 +01:00
logging util, refactor: Add UNIQUE_NAME helper macro 2022-02-16 14:59:20 +02:00
minisketch Update minisketch subtree to latest master 2022-06-29 16:35:02 +01:00
node Merge bitcoin/bitcoin#25951: log: Move validation option logging to LoadChainstate() 2022-09-01 19:49:11 +02:00
policy fixups for BIP125 doc cleanup 2022-08-22 14:59:58 +01:00
primitives CBlockLocator: performance-move-const-arg Clang tidy fixups 2022-08-31 15:10:26 +02:00
qt Merge bitcoin/bitcoin#25962: net: Add CNodeOptions and increase constness 2022-09-02 09:50:46 +02:00
rpc Merge bitcoin/bitcoin#25962: net: Add CNodeOptions and increase constness 2022-09-02 09:50:46 +02:00
script Merge bitcoin/bitcoin#19602: wallet: Migrate legacy wallets to descriptor wallets 2022-09-01 15:43:30 -04:00
secp256k1 Update secp256k1 subtree to latest upstream master 2022-06-11 14:55:18 +01:00
support build: globally define NOMINMAX 2022-06-20 12:22:05 +01:00
test Merge bitcoin/bitcoin#25962: net: Add CNodeOptions and increase constness 2022-09-02 09:50:46 +02:00
univalue Fix issues when calling std::move(const&) 2022-08-20 09:32:53 +02:00
util Merge bitcoin/bitcoin#25872: Fix issues when calling std::move(const&) 2022-08-31 08:38:24 +01:00
wallet Merge bitcoin/bitcoin#26010: RPC: fix sendall docs 2022-09-06 18:00:57 -04:00
zmq scripted-diff: remove duplicate categories from LogPrint output 2022-06-06 12:12:03 +02:00
.bear-tidy-config tidy: enable modernize-use-nullptr 2022-04-26 10:43:33 +01:00
.clang-format Use c++17 in clang-format 2021-11-12 11:46:34 +01:00
.clang-tidy Merge bitcoin/bitcoin#25872: Fix issues when calling std::move(const&) 2022-08-31 08:38:24 +01:00
addrdb.cpp Merge bitcoin/bitcoin#24925: refactor: make GetRand a template, remove GetRandInt 2022-05-12 08:57:22 +02:00
addrdb.h [net] Move asmap into NetGroupManager 2022-04-20 14:29:29 +01:00
addrman.cpp addrman: Use system time instead of adjusted network time 2022-07-30 11:04:09 +02:00
addrman.h addrman: Use system time instead of adjusted network time 2022-07-30 11:04:09 +02:00
addrman_impl.h addrman: Use system time instead of adjusted network time 2022-07-30 11:04:09 +02:00
arith_uint256.cpp Merge bitcoin/bitcoin#24077: util: Make base_uint::GetHex() and base_uint::SetHex() not depend on uint256 2022-04-14 07:15:22 +02:00
arith_uint256.h Remove duplicate static_asserts 2022-04-14 19:26:22 +02:00
attributes.h
banman.cpp scripted-diff: Avoid incompatibility with CMake AUTOUIC feature 2022-06-14 10:38:51 +02:00
banman.h refactor: Add thread safety annotation to BanMan::SweepBanned() 2022-05-20 15:17:00 +02:00
base58.cpp scripted-diff: Rename ValidAsCString to ContainsNoNUL 2022-04-27 14:16:35 +02:00
base58.h refactor: Remove defunct attributes.h includes 2022-05-21 13:54:33 -05:00
bech32.cpp Avoid implicit-integer-sign-change in bech32.cpp 2022-02-25 09:43:54 +01:00
bech32.h Make Bech32 LocateErrors return error list rather than using out-arg 2021-12-06 14:17:41 +13:00
bitcoin-chainstate.cpp Require callers of AcceptBlockHeader() to perform anti-dos checks 2022-08-29 08:10:35 -04:00
bitcoin-cli-res.rc windres: use PACKAGE_VERSION rather than building more version numbers 2021-08-17 16:54:47 +08:00
bitcoin-cli.cpp Merge bitcoin/bitcoin#25707: refactor: Make const references to avoid unnecessarily copying objects and enable two clang-tidy checks 2022-08-19 17:11:06 +02:00
bitcoin-tx-res.rc windres: use PACKAGE_VERSION rather than building more version numbers 2021-08-17 16:54:47 +08:00
bitcoin-tx.cpp refactor: Make const refs vars where applicable 2022-07-27 13:27:57 +02:00
bitcoin-util-res.rc windres: use PACKAGE_VERSION rather than building more version numbers 2021-08-17 16:54:47 +08:00
bitcoin-util.cpp refactor: move compat.h into compat/ 2022-07-20 10:34:46 +01:00
bitcoin-wallet-res.rc windres: use PACKAGE_VERSION rather than building more version numbers 2021-08-17 16:54:47 +08:00
bitcoin-wallet.cpp refactor: move compat.h into compat/ 2022-07-20 10:34:46 +01:00
bitcoind-res.rc windres: use PACKAGE_VERSION rather than building more version numbers 2021-08-17 16:54:47 +08:00
bitcoind.cpp refactor: move compat.h into compat/ 2022-07-20 10:34:46 +01:00
blockencodings.cpp Remove fUseWTXID parameter from CBlockHeaderAndShortTxIDs constructor 2022-05-17 10:37:10 +01:00
blockencodings.h Remove fUseWTXID parameter from CBlockHeaderAndShortTxIDs constructor 2022-05-17 10:37:10 +01:00
blockfilter.cpp Use new Join() helper for ListBlockFilterTypes() 2022-08-24 10:15:32 +02:00
blockfilter.h refactor: add LIFETIMEBOUND to blockfilter where needed 2022-08-31 16:51:32 +01:00
chain.cpp CBlockLocator: performance-move-const-arg Clang tidy fixups 2022-08-31 15:10:26 +02:00
chain.h Add functions to construct locators without CChain 2022-08-23 16:05:00 -04:00
chainparams.cpp Update chainparams for 24.0 release 2022-08-31 15:31:34 +03:00
chainparams.h scripted-diff: Bump copyright headers 2021-12-30 19:36:57 +02:00
chainparamsbase.cpp scripted-diff: Bump copyright headers 2021-12-30 19:36:57 +02:00
chainparamsbase.h
chainparamsseeds.h net: update hardcoded mainnet seeds for 24.x 2022-08-24 00:04:00 +02:00
checkqueue.h Increase threadsafety annotation coverage 2022-05-12 02:25:55 +10:00
clientversion.cpp refactor: shift CopyrightHolders() and LicenseInfo() to clientversion.cpp 2022-02-22 15:36:19 +00:00
clientversion.h refactor: shift CopyrightHolders() and LicenseInfo() to clientversion.cpp 2022-02-22 15:36:19 +00:00
coins.cpp Merge bitcoin/bitcoin#25707: refactor: Make const references to avoid unnecessarily copying objects and enable two clang-tidy checks 2022-08-19 17:11:06 +02:00
coins.h refactor: remove unused methods {CDBIterator,CCoinsViewDBCursor}::GetValueSize() 2022-06-21 16:19:10 +02:00
compressor.cpp scripted-diff: Bump copyright headers 2021-12-30 19:36:57 +02:00
compressor.h scripted-diff: Bump copyright headers 2021-12-30 19:36:57 +02:00
core_io.h refactor: Remove defunct attributes.h includes 2022-05-21 13:54:33 -05:00
core_memusage.h
core_read.cpp refactor: Make const refs vars where applicable 2022-07-27 13:27:57 +02:00
core_write.cpp refactor: add stdd:: includes to core_write 2022-03-30 20:11:15 +01:00
cuckoocache.h validationcaches: Use size_t for sizes 2022-08-03 12:03:28 -04:00
dbwrapper.cpp Remove unused includes from dbwrapper.h 2022-07-19 14:32:53 +02:00
dbwrapper.h Remove unused includes from dbwrapper.h 2022-07-19 14:32:53 +02:00
deploymentinfo.cpp scripted-diff: Bump copyright headers 2021-12-30 19:36:57 +02:00
deploymentinfo.h scripted-diff: Bump copyright headers 2021-12-30 19:36:57 +02:00
deploymentstatus.cpp validation: move g_versionbitscache into ChainstateManager 2022-05-10 12:09:33 +10:00
deploymentstatus.h validation: move g_versionbitscache into ChainstateManager 2022-05-10 12:09:33 +10:00
dummywallet.cpp wallet: ensure wallet files are not reused across chains 2022-02-16 15:02:26 +02:00
external_signer.cpp refactor: Make const refs vars where applicable 2022-07-27 13:27:57 +02:00
external_signer.h refactor: make ExternalSigner NetworkArg() and m_chain private 2021-06-16 10:48:58 +02:00
flatfile.cpp Disallow more unsafe string->path conversions allowed by path append operators 2022-04-21 12:01:00 -05:00
flatfile.h
fs.cpp build: globally define NOMINMAX 2022-06-20 12:22:05 +01:00
fs.h fs: work around u8path deprecated-declaration warnings with libc++ 2022-08-19 08:58:56 +01:00
hash.cpp Fix link to MurmurHash3.cpp from Austin Appleby 2022-08-30 13:52:45 +02:00
hash.h Use HashWriter where possible 2022-07-20 15:34:36 +02:00
headerssync.cpp Move headerssync logging to BCLog::NET 2022-08-30 12:09:04 -04:00
headerssync.h Track headers presync progress and log it 2022-08-29 08:10:35 -04:00
httprpc.cpp scripted-diff: Use getInt<T> over get_int/get_int64 2022-05-18 19:15:03 +02:00
httprpc.h scripted-diff: Bump copyright headers 2021-12-30 19:36:57 +02:00
httpserver.cpp Prevent data race for pathHandlers 2022-09-02 12:50:12 +01:00
httpserver.h Merge bitcoin/bitcoin#24681: build: Bump libevent minimum version up to 2.1.8 2022-04-06 13:19:36 +01:00
i2p.cpp i2p: log "SAM session" instead of "session" 2022-08-16 13:02:21 +02:00
i2p.h i2p: add support for creating transient sessions 2022-08-11 17:51:18 +02:00
indirectmap.h
init.cpp Merge bitcoin/bitcoin#25678: p2p: skip querying dns seeds if -onlynet disables IPv4 and IPv6 2022-09-07 18:28:42 +01:00
init.h Move init::SanityCheck to kernel::SanityCheck 2022-06-02 11:42:12 -04:00
key.cpp extended keys: fail to derive too large depth instead of wrapping around 2022-08-04 11:32:26 +02:00
key.h (pubk)key: mark Derive() as nodiscard 2022-08-04 11:32:25 +02:00
key_io.cpp scripted-diff: Bump copyright headers 2021-12-30 19:36:57 +02:00
key_io.h scripted-diff: Bump copyright headers 2021-12-30 19:36:57 +02:00
logging.cpp Merge bitcoin/bitcoin#25614: Severity-based logging, step 2 2022-09-01 15:57:56 -04:00
logging.h Move headerssync logging to BCLog::NET 2022-08-30 12:09:04 -04:00
Makefile.am Utilize anti-DoS headers download strategy 2022-08-29 08:10:35 -04:00
Makefile.bench.include Merge bitcoin/bitcoin#25785: bench: Add a benchmark for descriptor expansion 2022-08-12 13:00:06 +02:00
Makefile.crc32c.include build: Create .la library for crc32c 2022-04-26 16:25:38 -04:00
Makefile.leveldb.include Use more specific path when including memenv.h header 2022-06-23 15:33:01 +02:00
Makefile.minisketch.include build: add minisketch build file and include it 2021-10-21 09:37:30 +08:00
Makefile.qt.include qt, refactor: Add transactionoverviewwidget.cpp source file 2022-06-14 16:55:22 +02:00
Makefile.qt_locale.include qt: Pre-branch translation updates for 23.x 2022-02-28 16:59:56 +01:00
Makefile.qttest.include build: Remove vestigial LIBLEVELDB_SSE42 2022-04-11 16:56:34 -04:00
Makefile.test.include Add unit test for HeadersSyncState 2022-08-29 08:10:35 -04:00
Makefile.test_fuzz.include test/fuzz: Invoke LoadMempool via CChainState 2022-07-15 12:26:00 -04:00
Makefile.test_util.include build: Don't add unrelated libs to LIBTEST_* 2022-04-11 16:56:34 -04:00
Makefile.univalue.include Integrate univalue into our buildsystem 2021-10-11 20:46:25 +08:00
mapport.cpp refactor: move compat.h into compat/ 2022-07-20 10:34:46 +01:00
mapport.h
memusage.h
merkleblock.cpp
merkleblock.h scripted-diff: Bump copyright headers 2021-12-30 19:36:57 +02:00
net.cpp Merge bitcoin/bitcoin#25678: p2p: skip querying dns seeds if -onlynet disables IPv4 and IPv6 2022-09-07 18:28:42 +01:00
net.h scripted-diff: net: rename permissionFlags to permission_flags 2022-09-01 20:55:22 +10:00
net_permissions.cpp scripted-diff: Bump copyright headers 2021-12-30 19:36:57 +02:00
net_permissions.h scripted-diff: Bump copyright headers 2021-12-30 19:36:57 +02:00
net_processing.cpp Bypass headers anti-DoS checks for NoBan peers 2022-08-30 14:11:21 -04:00
net_processing.h Expose HeadersSyncState::m_current_height in getpeerinfo() 2022-08-29 08:10:35 -04:00
net_types.cpp scripted-diff: Use getInt<T> over get_int/get_int64 2022-05-18 19:15:03 +02:00
net_types.h scripted-diff: Bump copyright headers 2021-12-30 19:36:57 +02:00
netaddress.cpp refactor: use C++11 default initializers 2022-05-17 17:18:58 +01:00
netaddress.h refactor: move compat.h into compat/ 2022-07-20 10:34:46 +01:00
netbase.cpp refactor: Make const refs vars where applicable 2022-07-27 13:27:57 +02:00
netbase.h refactor: move compat.h into compat/ 2022-07-20 10:34:46 +01:00
netgroup.cpp [netgroup] Use nStartByte as offset for the last byte of the group 2022-04-25 15:09:14 +02:00
netgroup.h [netgroupman] Remove NetGroupManager::GetAsmap() 2022-04-20 14:35:53 +01:00
netmessagemaker.h
noui.cpp scripted-diff: Avoid incompatibility with CMake AUTOUIC feature 2022-06-14 10:38:51 +02:00
noui.h
outputtype.cpp Merge bitcoin/bitcoin#25734: wallet, refactor: #24584 follow-ups 2022-08-16 20:00:19 -04:00
outputtype.h wallet: remove UNKNOWN type from OUTPUT_TYPES array 2022-08-18 16:47:15 -03:00
pow.cpp Add function to validate difficulty changes 2022-08-23 11:34:10 -04:00
pow.h Add function to validate difficulty changes 2022-08-23 11:34:10 -04:00
prevector.h Merge bitcoin/bitcoin#24962: prevector: enforce is_trivially_copyable_v 2022-05-16 16:25:47 +02:00
protocol.cpp refactor: use strprintf for creating unknown-service-flag string 2022-08-20 15:11:28 +02:00
protocol.h refactor: Use type-safe std::chrono for addrman time 2022-07-26 11:06:10 +02:00
psbt.cpp psbt: Implement merge for Taproot fields 2022-06-27 16:47:48 -04:00
psbt.h psbt: Avoid unsigned int overflow in PSBT_IN_TAP_BIP32_DERIVATION 2022-08-10 11:58:17 -04:00
pubkey.cpp Merge bitcoin/bitcoin#25642: Don't wrap around when deriving an extended key at a too large depth 2022-08-10 14:25:43 -04:00
pubkey.h (pubk)key: mark Derive() as nodiscard 2022-08-04 11:32:25 +02:00
random.cpp refactor: move compat.h into compat/ 2022-07-20 10:34:46 +01:00
random.h refactor: Make FEELER_SLEEP_WINDOW type safe (std::chrono) 2022-07-13 15:21:12 +02:00
randomenv.cpp refactor: move compat.h into compat/ 2022-07-20 10:34:46 +01:00
randomenv.h scripted-diff: Bump copyright headers 2021-12-30 19:36:57 +02:00
rest.cpp Fix logical race in rest_getutxos 2022-08-16 17:26:28 +02:00
rest.h Handle query string when parsing data format 2022-03-10 12:01:53 +01:00
reverse_iterator.h
scheduler.cpp refactor: use C++11 default initializers 2022-05-17 17:18:58 +01:00
scheduler.h Increase threadsafety annotation coverage 2022-05-12 02:25:55 +10:00
serialize.h Add ChronoFormatter to serialize 2022-07-26 11:05:04 +02:00
shutdown.cpp scripted-diff: Avoid incompatibility with CMake AUTOUIC feature 2022-06-14 10:38:51 +02:00
shutdown.h scripted-diff: Bump copyright headers 2021-12-30 19:36:57 +02:00
signet.cpp scripted-diff: Bump copyright headers 2021-12-30 19:36:57 +02:00
signet.h scripted-diff: Bump copyright headers 2021-12-30 19:36:57 +02:00
span.h scripted-diff: rename BytePtr to AsBytePtr 2022-04-26 09:41:45 +01:00
streams.h streams: Add AutoFile without ser-type and ser-version 2022-06-29 10:31:53 +02:00
sync.cpp scripted-diff: Bump copyright headers 2021-12-30 19:36:57 +02:00
sync.h sync.h: Imply negative assertions when calling LOCK 2022-05-21 01:23:23 +10:00
threadinterrupt.cpp Expose underlying clock in CThreadInterrupt 2022-07-13 15:20:49 +02:00
threadinterrupt.h Fix iwyu 2022-08-20 09:33:01 +02:00
threadsafety.h
timedata.cpp Make adjusted time type safe 2022-08-05 14:59:15 +02:00
timedata.h Make adjusted time type safe 2022-08-05 14:59:15 +02:00
tinyformat.h Use C++17 [[fallthrough]] attribute, and drop -Wno-implicit-fallthrough 2021-07-05 08:59:38 +03:00
torcontrol.cpp refactor: move compat.h into compat/ 2022-07-20 10:34:46 +01:00
torcontrol.h torcontrol: Query Tor for correct -onion configuration 2022-03-15 01:33:52 +00:00
txdb.cpp CDiskBlockIndex: rename GetBlockHash() to ConstructBlockHash() 2022-07-22 12:45:07 +02:00
txdb.h Add missing includes 2022-07-19 14:12:33 +02:00
txmempool.cpp Remove ::g_max_datacarrier_bytes global 2022-08-02 15:29:16 +02:00
txmempool.h [doc] remove non-signaling mentions of BIP125 2022-08-04 16:56:33 +01:00
txorphanage.cpp refactor: log nEvicted message in LimitOrphans then return void 2022-07-28 14:39:45 +08:00
txorphanage.h refactor: log nEvicted message in LimitOrphans then return void 2022-07-28 14:39:45 +08:00
txrequest.cpp scripted-diff: Bump copyright headers 2021-12-30 19:36:57 +02:00
txrequest.h
uint256.cpp
uint256.h Use spans of std::byte in serialize 2022-01-02 11:40:31 +01:00
undo.h
validation.cpp Fix typo from PR25717 2022-08-30 14:11:21 -04:00
validation.h Merge bitcoin/bitcoin#25717: p2p: Implement anti-DoS headers sync 2022-08-30 15:37:59 +01:00
validationinterface.cpp refactor: Remove defunct attributes.h includes 2022-05-21 13:54:33 -05:00
validationinterface.h scripted-diff: Rename MainSignalsInstance() class to MainSignalsImpl() 2022-05-09 18:35:44 +02:00
version.h
versionbits.cpp Sanity assert GetAncestor() != nullptr where appropriate 2022-05-05 15:55:44 +02:00
versionbits.h Increase threadsafety annotation coverage 2022-05-12 02:25:55 +10:00
walletinitinterface.h Add src/node/* code to node:: namespace 2022-01-06 22:14:16 -05:00
warnings.cpp scripted-diff: Convert global Mutexes to GlobalMutexes 2022-05-21 01:23:23 +10:00
warnings.h scripted-diff: Bump copyright headers 2021-12-30 19:36:57 +02:00