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2017-11-02Stop always storing blocks from whitelisted peersMatt Corallo
There is no reason to wish to store blocks on disk always just because a peer is whitelisted. This appears to be a historical quirk to avoid breaking things when the accept limits were added. Github-Pull: #11531 Rebased-From: 3d9c70ca0fd5d42f31114b689714af1825f0ed30
2017-11-02net: Add missing lock in ProcessHeadersMessage(...)practicalswift
Reading the variable mapBlockIndex requires holding the mutex cs_main. The new "Disconnect outbound peers relaying invalid headers" code added in commit 37886d5e2f9992678dea4b1bd893f4f10d61d3ad and merged as part of #11568 two days ago did not lock cs_main prior to accessing mapBlockIndex. Github-Pull: #11578 Rebased-From: 2530bf27b72e53cc6ffec27de35f3b487984833d
2017-11-02Disconnect outbound peers relaying invalid headersSuhas Daftuar
Github-Pull: #11568 Rebased-From: 37886d5e2f9992678dea4b1bd893f4f10d61d3ad
2017-11-02moveonly: factor out headers processing into separate functionSuhas Daftuar
ProcessMessages will now return earlier when processing headers messages, rather than continuing on (and do nothing). Github-Pull: #11568 Rebased-From: 4637f18522429473e68f6f512a03040e121a446d
2017-11-02Permit disconnection of outbound peers on bad/slow chainsSuhas Daftuar
Currently we have no rotation of outbound peers. If an outbound peer stops serving us blocks, or is on a consensus-incompatible chain with less work than our tip (but otherwise valid headers), then we will never disconnect that peer, even though that peer is using one of our 8 outbound connection slots. Because we rely on our outbound peers to find an honest node in order to reach consensus, allowing an incompatible peer to occupy one of those slots is undesirable, particularly if it is possible for all such slots to be occupied by such peers. Protect against this by always checking to see if a peer's best known block has less work than our tip, and if so, set a 20 minute timeout -- if the peer is still not known to have caught up to a chain with as much work as ours after 20 minutes, then send a single getheaders message, wait 2 more minutes, and if a better header hasn't been received by then, disconnect that peer. Note: - we do not require that our peer sync to the same tip as ours, just an equal or greater work tip. (Doing otherwise would risk partitioning the network in the event of a chain split, and is also unnecessary.) - we pick 4 of our outbound peers and do not subject them to this logic, to be more conservative. We don't wish to permit temporary network issues (or an attacker) to excessively disrupt network topology. Github-Pull: #11490 Rebased-From: 5a6d00c6defc587e22c93e63029fdd538ce8858d
2017-11-02Disconnecting from bad outbound peers in IBDSuhas Daftuar
When in IBD, we'd like to use all our outbound peers to help us sync the chain. Disconnect any outbound peers whose headers have insufficient work. Github-Pull: #11490 Rebased-From: c60fd71a65e841efe187992f46c583a704cc37f5
2017-11-02net: drop unused connman paramCory Fields
The copy in PeerLogicValidation can be used instead. Github-Pull: #10756 Rebased-From: 80e2e9d0cec890c5d2f81360ebb81e81c07ccb8c
2017-11-02net: use an interface class rather than signals for message processingCory Fields
Drop boost signals in favor of a stateful class. This will allow the message processing loop to actually move to net_processing in a future step. Github-Pull: #10756 Rebased-From: 8ad663c1fa88d68843e45580deced56112343183
2017-11-02net: pass CConnman via pointer rather than referenceCory Fields
There are a few too many edge-cases here to make this a scripted diff. The following commits will move a few functions into PeerLogicValidation, where the local connman instance can be used. This change prepares for that usage. Github-Pull: #10756 Rebased-From: 28f11e9406b185dc87144f1f29af0d93eb115b4e
2017-11-02Rename fAddnode to a more-descriptive "manual_connection"Matt Corallo
Github-Pull: #11456 Rebased-From: 57edc0b0c86549020a39cd65f96496e9771c4769
2017-11-02Add comment explaining forced processing of compact blocksSuhas Daftuar
Github-Pull: #11458 Rebased-From: 01b52cedd42f50a93b40981c91af7c12de6e45ce
2017-11-02Allow setting nMinimumChainWork on command lineSuhas Daftuar
Github-Pull: #10357 Rebased-From: 0311836f6927aec4ba5687ea12af35df3c509682
2017-08-14scripted-diff: stop using the gArgs wrappersMarko Bencun
They were temporary additions to ease the transition. -BEGIN VERIFY SCRIPT- find src/ -name "*.cpp" ! -wholename "src/util.h" ! -wholename "src/util.cpp" | xargs perl -i -pe 's/(?<!\.)(ParseParameters|ReadConfigFile|IsArgSet|(Soft|Force)?(Get|Set)(|Bool|)Arg(s)?)\(/gArgs.\1(/g' -END VERIFY SCRIPT-
2017-08-14Merge #10483: scripted-diff: Use the C++11 keyword nullptr to denote the ↵Wladimir J. van der Laan
pointer literal instead of the macro NULL 90d4d89 scripted-diff: Use the C++11 keyword nullptr to denote the pointer literal instead of the macro NULL (practicalswift) Pull request description: Since C++11 the macro `NULL` may be: * an integer literal with value zero, or * a prvalue of type `std::nullptr_t` By using the C++11 keyword `nullptr` we are guaranteed a prvalue of type `std::nullptr_t`. For a more thorough discussion, see "A name for the null pointer: nullptr" (Sutter & Stroustrup), http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2431.pdf With this patch applied there are no `NULL` macro usages left in the repo: ``` $ git grep NULL -- "*.cpp" "*.h" | egrep -v '(/univalue/|/secp256k1/|/leveldb/|_NULL|NULLDUMMY|torcontrol.*NULL|NULL cert)' | wc -l 0 ``` The road towards `nullptr` (C++11) is split into two PRs: * `NULL` → `nullptr` is handled in PR #10483 (scripted, this PR) * `0` → `nullptr` is handled in PR #10645 (manual) Tree-SHA512: 3c395d66f2ad724a8e6fed74b93634de8bfc0c0eafac94e64e5194c939499fefd6e68f047de3083ad0b4eff37df9a8a3a76349aa17d55eabbd8e0412f140a297
2017-08-14Merge #11012: Make sure to clean up mapBlockSource if we've already seen the ↵Wladimir J. van der Laan
block 3f8fa7f Make sure to clean up mapBlockSource if we've already seen the block (Cory Fields) Pull request description: Otherwise we may leave them dangling. Credit TheBlueMatt. Tree-SHA512: 8be77e08ebfc4f5b206d5ee7cfbe87f92c1eb5bc2b412471993658fe210306789aaf0f3d1454c635508a7d8effede2cf5ac144d622b0157b872733d9661d65c3
2017-08-08Make sure to clean up mapBlockSource if we've already seen the blockCory Fields
Credit TheBlueMatt
2017-08-07scripted-diff: Use the C++11 keyword nullptr to denote the pointer literal ↵practicalswift
instead of the macro NULL -BEGIN VERIFY SCRIPT- sed -i 's/\<NULL\>/nullptr/g' src/*.cpp src/*.h src/*/*.cpp src/*/*.h src/qt/*/*.cpp src/qt/*/*.h src/wallet/*/*.cpp src/wallet/*/*.h src/support/allocators/*.h sed -i 's/Prefer nullptr, otherwise SAFECOOKIE./Prefer NULL, otherwise SAFECOOKIE./g' src/torcontrol.cpp sed -i 's/tor: Using nullptr authentication/tor: Using NULL authentication/g' src/torcontrol.cpp sed -i 's/METHODS=nullptr/METHODS=NULL/g' src/test/torcontrol_tests.cpp src/torcontrol.cpp sed -i 's/nullptr certificates/NULL certificates/g' src/qt/paymentserver.cpp sed -i 's/"nullptr"/"NULL"/g' src/torcontrol.cpp src/test/torcontrol_tests.cpp -END VERIFY SCRIPT-
2017-08-06Disconnect network service bits 6 and 8 until Aug 1, 2018Matt Corallo
These have been used to indicate incompatible consensus rules instead of changing network magic, so we're stuck disconnecting them.
2017-07-04Merge #10193: scripted-diff: Remove #include <boost/foreach.hpp>Wladimir J. van der Laan
b1268a1 clang-format: Delete ForEachMacros (Jorge Timón) 5995735 scripted-diff: Remove #include <boost/foreach.hpp> (Jorge Timón) 3eff827 scripted-diff: Remove BOOST_REVERSE_FOREACH (Jorge Timón) 33aed5b Fix const_reverse_iterator constructor (pass const ptr) (Jorge Timón) 300851e Introduce src/reverse_iterator.hpp and include it... (Jorge Timón) Tree-SHA512: df3405328e9602d0a433ac134ba59a5c9a6202ef64188df2f94a59b2ce58dec7c988b25d0671c7937de516a96b2e6daeb9d04c82fa363b616ee4cf6e9cb0fac6
2017-06-26[MOVEONLY] Move LastCommonAncestor to chainPieter Wuille
2017-06-26Merge #9544: [trivial] Add end of namespace comments. Improve consistency.Wladimir J. van der Laan
5a9b508 [trivial] Add end of namespace comments (practicalswift) Tree-SHA512: 92b0fcae4d1d3f4da9e97569ae84ef2d6e09625a5815cd0e5f0eb6dd2ecba9852fa85c184c5ae9de5117050330ce995e9867b451fa8cd5512169025990541a2b
2017-06-22scripted-diff: Remove BOOST_REVERSE_FOREACHJorge Timón
-BEGIN VERIFY SCRIPT- sed -i 's/BOOST_REVERSE_FOREACH(\(.*\), \(.*\))/for (\1 : reverse_iterate(\2))/' ./src/*.h ./src/*.cpp ./src/*/*.h ./src/*/*.cpp ; -END VERIFY SCRIPT-
2017-06-22Introduce src/reverse_iterator.hpp and include it...Jorge Timón
...where it will be needed Taken from https://gist.github.com/arvidsson/7231973 with small modifications to fit the bitcoin core project
2017-06-20Merge #9549: [net] Avoid possibility of NULL pointer dereference in ↵Pieter Wuille
MarkBlockAsInFlight(...) 95543d874 [net] Avoid possibility of NULL pointer dereference in MarkBlockAsInFlight(...) (practicalswift) Tree-SHA512: 80fd4f2712f20377185bd8d319255f2c54ae47b54c706f7e0d384a0a6ade1465ceb6e2a4a7f7b51987a659524474a954eddf228865ebb3fc513948b5b6d7ab6d
2017-06-13Merge #10502: scripted-diff: Remove BOOST_FOREACH, Q_FOREACH and PAIRTYPEPieter Wuille
1238f13cf scripted-diff: Remove PAIRTYPE (Jorge Timón) 18dc3c396 scripted-diff: Remove Q_FOREACH (Jorge Timón) 7c00c2672 scripted-diff: Fully remove BOOST_FOREACH (Jorge Timón) a5410ac5e Small preparations for Q_FOREACH, PAIRTYPE and #include <boost/foreach.hpp> removal (Jorge Timón) Tree-SHA512: d3ab4a173366402e7dcef31608977b757d4aa07abbbad2ee1bcbcfa311e994a4552f24e5a55272cb22c2dcf89a4b0495e02e9d9aceae4b08c0bab668f20e324c
2017-06-09Remove unused Boost includespracticalswift
2017-06-06Merge #10345: [P2P] Timeout for headers syncWladimir J. van der Laan
76f7481 Add timeout for headers sync (Suhas Daftuar) e265200 Delay parallel block download until chain has sufficient work (Suhas Daftuar) Tree-SHA512: e7f5468b7defe67d4d2d5c976bc129dba2b32b2ea52d3ff33b9cbff5c3b5b799be867653f1bcd354340d707d76dcadf2da4588abf6d6ec4a06672cdc5e1101eb
2017-06-05Add timeout for headers syncSuhas Daftuar
At startup, we choose one peer to serve us the headers chain, until our best header is close to caught up. Disconnect this peer if more than 15 minutes + 1ms/expected_header passes and our best header is still more than 1 day away from current time.
2017-06-05scripted-diff: Fully remove BOOST_FOREACHJorge Timón
-BEGIN VERIFY SCRIPT- sed -i 's/BOOST_FOREACH *(\(.*\),/for (\1 :/' ./src/*.h ./src/*.cpp ./src/*/*.h ./src/*/*.cpp ./src/*/*/*.h ./src/*/*/*.cpp ; -END VERIFY SCRIPT-
2017-06-01scripted-diff: various renames for per-utxo consistencyPieter Wuille
Thanks to John Newberry for pointing these out. -BEGIN VERIFY SCRIPT- sed -i 's/\<GetCoins\>/GetCoin/g' src/*.cpp src/*.h src/*/*.cpp src/*/*.h sed -i 's/\<HaveCoins\>/HaveCoin/g' src/*.cpp src/*.h src/*/*.cpp src/*/*.h sed -i 's/\<HaveCoinsInCache\>/HaveCoinInCache/g' src/*.cpp src/*.h src/*/*.cpp src/*/*.h sed -i 's/\<IsPruned\>/IsSpent/g' src/*.cpp src/*.h src/*/*.cpp src/*/*.h sed -i 's/\<FetchCoins\>/FetchCoin/g' src/*.cpp src/*.h src/*/*.cpp src/*/*.h sed -i 's/\<CoinsEntry\>/CoinEntry/g' src/*.cpp src/*.h src/*/*.cpp src/*/*.h sed -i 's/\<vHashTxnToUncache\>/coins_to_uncache/g' src/*.cpp src/*.h src/*/*.cpp src/*/*.h sed -i 's/\<vHashTxToUncache\>/coins_to_uncache/g' src/*.cpp src/*.h src/*/*.cpp src/*/*.h sed -i 's/\<fHadTxInCache\>/had_coin_in_cache/g' src/*.cpp src/*.h src/*/*.cpp src/*/*.h sed -i 's/\<coinbaseids\>/coinbase_coins/g' src/*.cpp src/*.h src/*/*.cpp src/*/*.h sed -i 's/\<disconnectedids\>/disconnected_coins/g' src/*.cpp src/*.h src/*/*.cpp src/*/*.h sed -i 's/\<duplicateids\>/duplicate_coins/g' src/*.cpp src/*.h src/*/*.cpp src/*/*.h sed -i 's/\<oldcoins\>/old_coin/g' src/test/coins_tests.cpp sed -i 's/\<origcoins\>/orig_coin/g' src/*.cpp src/*.h src/*/*.cpp src/*/*.h -END VERIFY SCRIPT-
2017-06-01Switch CCoinsView and chainstate db from per-txid to per-txoutPieter Wuille
This patch makes several related changes: * Changes the CCoinsView virtual methods (GetCoins, HaveCoins, ...) to be COutPoint/Coin-based rather than txid/CCoins-based. * Changes the chainstate db to a new incompatible format that is also COutPoint/Coin based. * Implements reconstruction code for hash_serialized_2. * Adapts the coins_tests unit tests (thanks to Russell Yanofsky). A side effect of the new CCoinsView model is that we can no longer use the (unreliable) test for transaction outputs in the UTXO set to determine whether we already have a particular transaction.
2017-05-31[trivial] Add end of namespace commentspracticalswift
2017-05-19Use range-based for loops (C++11) when looping over vector elementspracticalswift
2017-05-17Merge #10319: Remove unused argument from MarkBlockAsInFlight(...)Wladimir J. van der Laan
6345f0b Remove unused argument from MarkBlockAsInFlight(...) (practicalswift) Tree-SHA512: c07616aac1a2e00d269ffd62861bb0fe3addc60c7a601ec4f9c212727697cf82d41d237cce8e043df02b7733d553bd99d9c999ebb299d376dbc63483ce182219
2017-05-15Add logging to FinalizeNode()Suhas Daftuar
2017-05-08Delay parallel block download until chain has sufficient workSuhas Daftuar
nMinimumChainWork is an anti-DoS threshold; wait until we have a proposed tip with more work than that before downloading blocks towards that tip.
2017-05-07Merge #10351: removed unused code in INV messagePieter Wuille
c707ca8 removed unused code in INV message (Greg Griffith) Tree-SHA512: 8152e9bfb7e1e8a321e7c05ea46826b3ecea6fa5e176727a9c944db170cb134ba1adfa0251bece9683a68d52266291bca58240929337aba6328b915931e60eb9
2017-05-07Merge #10189: devtools/net: add a verifier for scriptable changes. Use it to ↵Wladimir J. van der Laan
make CNode::id private. 0f3471f net: make CNode's id private (Cory Fields) 9ff0a51 scripted-diff: net: Use accessor rather than node's id directly (Cory Fields) e50c33e devtools: add script to verify scriptable changes (Cory Fields) Tree-SHA512: a0ff50f4e1d38a2b63109b4996546c91b3e02e00d92c0bf04f48792948f78b1f6d9227a15d25c823fd4723a0277fc6a32c2c1287c7abbb7e50fd82ffb0f8d994
2017-05-07removed unused code in INV messageGreg Griffith
vToFetch is never used after declaration. When checked if not empty, evaluation is always false. Best case scenario this is optimized by the compiler, worst case it wastes cpu cycles. It should be removed either way.
2017-05-04scripted-diff: net: Use accessor rather than node's id directlyCory Fields
-BEGIN VERIFY SCRIPT- sed -i "s/\(node\|to\|from\)->id/\1->GetId()/" src/net.cpp src/net_processing.cpp -END VERIFY SCRIPT-
2017-05-02Remove unused argument from MarkBlockAsInFlight(...)practicalswift
2017-05-02Remove unused args from GetFetchhFlags()BtcDrak
2017-04-26Merge #9930: Trivial: Correct indentation and bracingWladimir J. van der Laan
31a14d4 Correct indentation and remove unnecessary braces (Matthias Grundmann) Tree-SHA512: c0e827ec4474133c7674254dfd13f59608820cd639debc7759bddae71d73451645fcfe14384f343d08f74d69ac3922bafc12a514f3b790ae2bf9271aa67d5f36
2017-04-13Merge #9665: Use cached [compact] blocks to respond to getdata messagesWladimir J. van der Laan
b49ad44 Add comment about cs_most_recent_block coverage (Matt Corallo) c47f5b7 Cache witness-enabled state with recent-compact-block-cache (Matt Corallo) efc135f Use cached [compact] blocks to respond to getdata messages (Matt Corallo) Tree-SHA512: ffc478bddbf14b8ed304a3041f47746520ce545bdeffa9652eff2ccb25c8b0d5194abe72568c10f9c1b246ee361176ba217767af834752a2ca7263d292005e87
2017-04-10Merge #9725: CValidationInterface CleanupsWladimir J. van der Laan
b1a6d4c Take a CTransactionRef in AddToWalletIfInvolvingMe to avoid a copy (Matt Corallo) 1c95e2f Use std::shared_ptr instead of boost::shared_ptr in ScriptForMining (Matt Corallo) 91f1e6c Remove dead-code tracking of requests for blocks we generated (Matt Corallo) acad82f Add override to functions using CValidationInterface methods (Matt Corallo) e6d5e6c Hold cs_wallet for whole block [dis]connection processing (Matt Corallo) 461e49f SyncTransaction->TxAddedToMempool/BlockConnected/Disconnected (Matt Corallo) f404334 Handle SyncTransaction in ActivateBestChain instead of ConnectTrace (Matt Corallo) a147687 Keep conflictedTxs in ConnectTrace per-block (Matt Corallo) d3167ba Handle conflicted transactions directly in ConnectTrace (Matt Corallo) 29e6e23 Make ConnectTrace::blocksConnected private, hide behind accessors (Matt Corallo) 822000c Add pblock to connectTrace at the end of ConnectTip, not start (Matt Corallo) f5e9a01 Include missing #include in zmqnotificationinterface.h (Matt Corallo) Tree-SHA512: 8893d47559da3b28d2ef7359768547cba8a4b43b6f891d80f5848f995a84b1517bfb0f706fdc8cd43f09a1350349eb440d9724a59363ab517dfcc4fcb31b2018
2017-04-10Merge #10135: [p2p] Send the correct error code in reject messagesWladimir J. van der Laan
5d08c9c Send the correct error code in reject messages (John Newbery) Tree-SHA512: 0cd3ef3ae202584b138cc0bbfba4125635822e0c5a755fb9276a604b39286959ab22dabc3104aa5d7e71358cd69d965de2a333ff04bf3e8ed43cf0296ac01264
2017-04-07SyncTransaction->TxAddedToMempool/BlockConnected/DisconnectedMatt Corallo
This simplifies fixing the wallet-returns-stale-info issue as we can now hold cs_wallet across an entire block instead of only per-tx (though we only actually do so in the next commit). This change also removes the NOT_IN_BLOCK constant in favor of only passing the CBlockIndex* parameter to SyncTransactions when a new block is being connected, instead of also when a block is being disconnected. This change adds a parameter to BlockConnectedDisconnected which lists the transactions which were removed from mempool due to confliction as a result of this operation. While its somewhat of a shame to make block-validation-logic generate a list of mempool changes to be included in its generated callbacks, fixing this isnt too hard. Further in this change-set, CValidationInterface starts listening to mempool directly, placing it in the middle and giving it a bit of logic to know how to route notifications from block-validation, mempool, etc (though not listening for conflicted-removals yet).
2017-04-02Correct indentation and remove unnecessary bracesMatthias Grundmann
2017-04-01Change LogAcceptCategory to use uint32_t rather than sets of strings.Gregory Maxwell
This changes the logging categories to boolean flags instead of strings. This simplifies the acceptance testing by avoiding accessing a scoped static thread local pointer to a thread local set of strings. It eliminates the only use of boost::thread_specific_ptr outside of lockorder debugging. This change allows log entries to be directed to multiple categories and makes it easy to change the logging flags at runtime (e.g. via an RPC, though that isn't done by this commit.) It also eliminates the fDebug global. Configuration of unknown logging categories now produces a warning.
2017-03-31Send the correct error code in reject messagesJohn Newbery
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