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2020-09-07Replace zmqconfig.h by a simple zmqutil.Daniel Kraft
zmqconfig.h is currently not really needed anywhere, except that it declares zmqError (which is then defined in zmqnotificationinterface.cpp). Note in particular that there is no need to conditionally include zmq.h only if ZMQ is enabled, because the place in the core code where the ZMQ library itself is included (init.cpp) is conditional already on that. This commit removes zmqconfig.h and replaces it by a much simpler zmqutil.h library for zmqError. The definition of the function is moved to the matching (newly created) zmqutil.cpp.
2020-09-07Use std::unique_ptr for CZMQNotifierFactory.Daniel Kraft
Instead of returning a raw pointer from CZMQNotifierFactory and implicitly requiring the caller to know that it has to take ownership, return a std::unique_ptr to make this explicit. This also changes the typedef for CZMQNotifierFactory to use the new C++11 using syntax, which makes it (a little) less cryptic.
2020-09-07Simplify and fix notifier removal on error.Daniel Kraft
This factors out the common logic to run over all ZMQ notifiers, call a function on them, and remove them from the list if the function fails is extracted to a helper method. Note that this also fixes a potential memory leak: When a notifier was removed previously after its callback returned false, it would just be removed from the list without destructing the object. This is now done correctly by std::unique_ptr behind the scenes.
2020-09-07Various cleanups in zmqnotificationinterface.Daniel Kraft
This is a pure refactoring of zmqnotificationinterface to make the code easier to read and maintain. It replaces explicit iterators with C++11 for-each loops where appropriate and uses std::unique_ptr to make memory ownership more explicit.
2020-09-07Merge #19738: wallet: Avoid multiple BerkeleyBatch in DelAddressBookSamuel Dobson
abac4367607d8d2b628e4db6a9663c960bacdacc wallet: Avoid multiple BerkeleyBatch in DelAddressBook (João Barbosa) Pull request description: ACKs for top commit: achow101: ACK abac4367607d8d2b628e4db6a9663c960bacdacc jonatack: ACK abac4367607d8d2b628e4db6a9663c960bacdacc meshcollider: re-utACK abac4367607d8d2b628e4db6a9663c960bacdacc Tree-SHA512: 92309fb74c48694160807326c0fe9793044a75cd77ed19400cceab54a7eefeb54ffc9334535e6021b3af7b9a364dbbeda3a9173540fff8144dfd437e96d76b5c
2020-09-07Merge #19619: Remove wallet.dat path handling from wallet.cpp, rpcwallet.cppSamuel Dobson
7bf6dfbb484adfda3b8df26ee3e2ebda239dd263 wallet: Remove path checking code from bitcoin-wallet tool (Russell Yanofsky) 77d5bb72b8722ec7a6c7c33479a532cbd5870ba4 wallet: Remove path checking code from createwallet RPC (Russell Yanofsky) a987438e9d9cad0b5530e218a447928485f3fd93 wallet: Remove path checking code from loadwallet RPC (Russell Yanofsky) 8b5e7297c02f3100a9cb27bfe206e3fc617ec173 refactor: Pass wallet database into CWallet::Create (Russell Yanofsky) 3c815cfe54087fd139169161d2fd175e99840e6a wallet: Remove Verify and IsLoaded methods (Russell Yanofsky) 0d94e6062547f288a75921d2433458a44a5f2297 refactor: Use DatabaseStatus and DatabaseOptions types (Russell Yanofsky) b5b414151af32e5a07b5757b64482d77519d77c0 wallet: Add MakeDatabase function (Russell Yanofsky) 288b4ffb6b291f0466d513ff3c40af6758ca7c88 Remove WalletLocation class (Russell Yanofsky) Pull request description: Get rid of file path handling in wallet application code and move it down to database layer. There is no change in behavior except for some changed error messages. Motivation for this change is to make code more understandable, but also to prepare for adding SQLite support in #19077 so SQLite implementation can be contained at the database layer and wallet loading code does not need to become more complicated. ACKs for top commit: achow101: ACK 7bf6dfbb484adfda3b8df26ee3e2ebda239dd263 meshcollider: Code re-review and functional test run ACK 7bf6dfbb484adfda3b8df26ee3e2ebda239dd263 Tree-SHA512: 23ad18324c9e8947f0cf88a3734c2e9fb25536b2cb4d552cf5d1a4ade320fbffb73bb2d1b3a99585c11630aa7092e0fcfc2dd4fe65b91e3a54161433a5cd13cb
2020-09-06wallet: Avoid multiple BerkeleyBatch in DelAddressBookJoão Barbosa
2020-09-06refactor: remove unused header <arpa/inet.h> in protocol.cppSebastian Falbesoner
2020-09-05Merge #19848: Remove mempool global from interfacesMarcoFalke
fa9ee52556f493e4a896e2570ca1a3102d777d9a doc: Add doxygen comment to IsRBFOptIn (MarcoFalke) faef4fc9b4990e563022b6ab595cb02c4060c216 Remove mempool global from interfaces (MarcoFalke) fa831684e54783f6b40533ca218eb7636bdae667 refactor: Add IsRBFOptInEmptyMempool (MarcoFalke) Pull request description: The chain interface has an `m_node` member, which has a pointer to the mempool global. Use the pointer instead of the global to prepare the removal of the mempool global. See #19556 ACKs for top commit: jnewbery: utACK fa9ee52556 darosior: ACK fa9ee52 hebasto: re-ACK fa9ee52556f493e4a896e2570ca1a3102d777d9a, since my [previous](https://github.com/bitcoin/bitcoin/pull/19848#pullrequestreview-482403942) review: Tree-SHA512: 11b4c1446f0860a743fdaa67f95c52bf0262d0a4f888be0eaf07ee497448965d32be414111bf016bd568f2989cde923430e3a3889e224057b73c499f06de7199
2020-09-05Merge #19728: Increase the ip address relay branching factor for unreachable ↵Wladimir J. van der Laan
networks 86d4cf42d97abf4c436d1eabf29e2ed150f69c1e Increase the ip address relay branching factor for unreachable networks (Pieter Wuille) Pull request description: Onion addresses propagate very badly among the IPv4/IPv6 network, resulting in difficulty for those to find each other. The branching factor 1 is probably so low that propagations die out before they reach another onion peer. Increase it to 1.5 on average. ACKs for top commit: practicalswift: ACK 86d4cf42d97abf4c436d1eabf29e2ed150f69c1e -- patch looks correct naumenkogs: ACK 86d4cf4 jonatack: ACK 86d4cf42d97abf4c436d1eabf29e2ed150f69c1e. Code review, built and running with some sanity check logging. `RelayAddress()` is called by `ProcessMessage() ADDR` msg handling, from within the loop while processing each new address to relay it to a limited number of other nodes. According to git blame, the line setting `nRelayNodes` hasn't been touched since 2016 in e736772c56a *Move network-msg-processing code out of main to its own file*, which moved the line but otherwise did not change it. Running a mixed clearnet/onion node with this patch and the logging below, I'm only seeing values of `fReachable 1, nRelayNodes 2`. IIUC, I need to use the settings in `init.cpp` that call `SetReachable(*, false)`. *Edit:* with `onlynet=onion` am now seeing entries of `fReachable 0` with `nRelayNodes` values of 1 and 2. vasild: ACK 86d4cf42d Tree-SHA512: 22391e16d60bcfdec9a9336728da39d68a24a183b3d1b0e8fbc038d265ca6ddf71d16db018f3678745fd9f3e9281049e42197fa0a29124833c50a9170ed6f793
2020-09-05Merge #19852: refactor: Avoid duplicate map lookup in ScriptToAsmStrMarcoFalke
ac2ff4fb1e06270cf17727f90599c9f3a55ddd5a refactor: Avoid duplicate map lookup in ScriptToAsmStr (João Barbosa) Pull request description: Simple change that avoids a duplicate (unnecessary) `mapSigHashTypes` lookup. ACKs for top commit: laanwj: re-ACK ac2ff4fb1e06270cf17727f90599c9f3a55ddd5a Tree-SHA512: 7e7f5af51c1acd7a42af273e5ee5e2faddd250ba8b8f63ccb3172d95f153ae391b2816b79564b856571af52dc2a767b5736a5d10ffb5cd2c540cd9832bf86419
2020-09-05doc: Add doxygen comment to IsRBFOptInMarcoFalke
2020-09-05Remove mempool global from interfacesMarcoFalke
2020-09-05refactor: Add IsRBFOptInEmptyMempoolMarcoFalke
Co-authored-by: John Newbery <jonnynewbs@gmail.com>
2020-09-04rawtransaction: fix argument in combinerawtransaction help messageMatthew Zipkin
2020-09-04Merge #19405: rpc, cli: add network in/out connections to `getnetworkinfo` ↵Wladimir J. van der Laan
and `-getinfo` 581b343d5bf517510ab0236583ca96628751177d Add in/out connections to cli -getinfo (Jon Atack) d9cc13e88d096c1a171159c01cbb96444f7f8d7f UNIX_EPOCH_TIME fixup in rpc getnettotals (Jon Atack) 1ab49b81cf32b6ef9e312a0a8ac45c68a3262f0d Add in/out connections to rpc getnetworkinfo (Jon Atack) Pull request description: This is basic info that is present in the GUI that I've been wishing to have exposed via the RPC and CLI without needing a bash workaround or script. For human users it would also be useful to have it in `-getinfo`. `bitcoin-cli getnetworkinfo` ``` "connections": 15, "connections_in": 6, "connections_out": 9, ``` `bitcoin-cli -getinfo` ``` "connections": { "in": 6, "out": 9, "total": 15 }, ``` Update the tests, RPC help, and release notes for the changes. Also fixup the `getnettotals` timemillis help while touching `rpc/net.cpp`. ----- Reviewers can manually test this PR by [building from source](https://jonatack.github.io/articles/how-to-compile-bitcoin-core-and-run-the-tests), launching bitcoind, and then running `bitcoin-cli -getinfo`, `bitcoin-cli getnetworkinfo`, `bitcoin-cli help getnetworkinfo`, and `bitcoin-cli help getnettotals` (for the UNIX epoch time change). ACKs for top commit: eriknylund: > tACK [581b343](https://github.com/bitcoin/bitcoin/commit/581b343d5bf517510ab0236583ca96628751177d) on master at [a0a422c](https://github.com/bitcoin/bitcoin/commit/a0a422c34cfd6514d0cc445bd784d3ee1a2d1749), ran unit & functional tests and and confirmed changes on an existing datadir ✌️ benthecarman: tACK `581b343` willcl-ark: tACK for 581b343d5bf517510ab0236583ca96628751177d, this time rebased onto master at 862fde88be706adb20a211178253636442c3ae00. shesek: tACK `581b343`. This provides what I needed, thanks! n-thumann: tACK 581b343 on master at a0a422c, ran unit & functional tests and and confirmed changes on an existing datadir ✌️ Tree-SHA512: 08dd3ac8fefae401bd8253ff3ac027603c528eeccba53cedcb127771316173a7052fce44af8fa33ac98ebc4cf2a2b11cdefd949995d55e9b9a5942b876d00dc5
2020-09-04Merge #19854: Avoid locking CTxMemPool::cs recursively in simple casesWladimir J. van der Laan
020f0519ec66d9626255b938e1c6c3f7f9aa4017 refactor: CTxMemPool::IsUnbroadcastTx() requires CTxMemPool::cs lock (Hennadii Stepanov) 7c4bd0387a01a0c3e2938d530dba3c882e4d8f2b refactor: CTxMemPool::GetTotalTxSize() requires CTxMemPool::cs lock (Hennadii Stepanov) fa5fcb032b6ed04c49ee465235288b8059fa805e refactor: CTxMemPool::ClearPrioritisation() requires CTxMemPool::cs lock (Hennadii Stepanov) 7140b31b90cbd84d75eedb3e395d0d55f83b5b95 refactor: CTxMemPool::ApplyDelta() requires CTxMemPool::cs lock (Hennadii Stepanov) 66e47e5e506043fbb9b4e487b44bf992985709c9 refactor: CTxMemPool::UpdateChild() requires CTxMemPool::cs lock (Hennadii Stepanov) 939807768acd508932f2efabee660d56324a73df refactor: CTxMemPool::UpdateParent() requires CTxMemPool::cs lock (Hennadii Stepanov) Pull request description: This is another step to transit `CTxMemPool::cs` from `RecursiveMutex` to `Mutex`. Split out from #19306. Only trivial thread safety annotations and lock assertions added. No new locks. No behavior change. Refactoring `const uint256` to `const uint256&` was [requested](https://github.com/bitcoin/bitcoin/pull/19647#discussion_r468471022) by **promag**. Please note that now, since #19668 has been merged, it is safe to apply `AssertLockHeld()` macros as they do not swallow compile time Thread Safety Analysis warnings. ACKs for top commit: promag: Core review ACK 020f0519ec66d9626255b938e1c6c3f7f9aa4017. jnewbery: Code review ACK 020f0519ec66d9626255b938e1c6c3f7f9aa4017 vasild: ACK 020f0519e Tree-SHA512: a31e389142d5a19b25fef0aaf1072a337278564528b5cc9209df88ae548a31440e1b8dd9bae0169fd7aa59ea06e22fe5e0413955386512b83ef1f3e7d941e890
2020-09-04refactor: Avoid duplicate map lookup in ScriptToAsmStrJoão Barbosa
2020-09-03wallet: Remove path checking code from bitcoin-wallet toolRussell Yanofsky
This commit does not change behavior except for error messages which now include more complete information.
2020-09-03Merge #19754: wallet, gui: Reload previously loaded wallets on startupJonas Schnelli
f1ee37319a7a211e5fb325406d62db5b61dbd30e wallet: Reload previously loaded wallets on GUI startup (Andrew Chow) Pull request description: Enable the GUI to also use the load_on_startup feature. Wallets loaded in the GUI always have load_on_startup=true. When they are unloaded from the GUI, load_on_startup=false. To facilitate this change, UpdateWalletSetting is moved into the wallet module and called from within LoadWallet, RemoveWallet, and Createwallet. This change does not actually touch the GUI code but rather the wallet functions that are shared between the GUI and RPC. ACKs for top commit: jonasschnelli: Tested ACK f1ee37319a7a211e5fb325406d62db5b61dbd30e - works as expected. Wallets loaded via bitcoin-cli (in `-server` mode) or through the RPC console won't be loaded on startup but wallets loaded via the GUI menu will. kristapsk: ACK f1ee37319a7a211e5fb325406d62db5b61dbd30e, I have tested the code. Tree-SHA512: f5b44aa763cf761d919015c5fbc0600b72434aa71e3b57007fd7530a29c3da1a9a0c98c4f22cb6cdffba61150a31170056a7d4737625e7b76f6958f3d584da8c
2020-09-03wallet: Remove path checking code from createwallet RPCRussell Yanofsky
This commit does not change behavior except for error messages which now include more complete information.
2020-09-03wallet: Remove path checking code from loadwallet RPCRussell Yanofsky
This commit does not change behavior except for error messages which now include more complete information.
2020-09-03refactor: Pass wallet database into CWallet::CreateRussell Yanofsky
No changes in behavior
2020-09-03wallet: Remove Verify and IsLoaded methodsRussell Yanofsky
Checks are now consolidated in MakeBerkeleyDatabase function instead of happening in higher level code. This commit does not change behavior except for error messages which now include more complete information.
2020-09-03refactor: Use DatabaseStatus and DatabaseOptions typesRussell Yanofsky
No changes in behavior. Just replaces arguments and return types
2020-09-03wallet: Add MakeDatabase functionRussell Yanofsky
New function is not currently called but will be called in upcoming commits. It moves database path checking, and existence checking, and already-loaded checking, and verification into a single function so this logic does not need to be repeated all over higher level wallet code, and so higher level code does not need to change when SQLite support is added in https://github.com/bitcoin/bitcoin/pull/19077. This also lets higher level wallet code make fewer assumptions about the contents of wallet directories. This commit just adds the new function and does not change behavior in any way.
2020-09-03Remove WalletLocation classRussell Yanofsky
This removes a source of complexity and indirection that makes it harder to understand path checking code. Path checks will be simplified in upcoming commits. There is no change in behavior in this commit other than a slightly more descriptive error message in `loadwallet` if the default "" wallet can't be found. (The error message is improved more in upcoming commit "wallet: Remove path checking code from loadwallet RPC".)
2020-09-03Merge #19818: p2p: change `CInv::type` from `int` to `uint32_t`, fix UBSan ↵Wladimir J. van der Laan
warning 7984c39be11ca04460883365e1ae2a496aaa6c0e test framework: serialize/deserialize inv type as unsigned int (Jon Atack) 407175e0c2bc797599ebd9c0a1f2ec89ad7af136 p2p: change CInv::type from int to uint32_t (Jon Atack) Pull request description: Fixes UBSan implicit-integer-sign-change issue per https://github.com/bitcoin/bitcoin/pull/19610#issuecomment-680686460. Credit to Crypt-iQ for finding and reporting the issue and to vasild for the original review suggestion in https://github.com/bitcoin/bitcoin/pull/19590#pullrequestreview-455788826. Closes #19678. ACKs for top commit: laanwj: ACK 7984c39be11ca04460883365e1ae2a496aaa6c0e MarcoFalke: ACK 7984c39be11ca04460883365e1ae2a496aaa6c0e 🌻 vasild: ACK 7984c39be Tree-SHA512: 59f3a75f40ce066ca6f0bb1927197254238302b4073af1574bdbfe6ed580876437be804be4e47d51467d604f0d9e3a5875159f7f2edbb2351fdb2bb9465100b5
2020-09-03Merge #19670: Protect localhost and block-relay-only peers from evictionWladimir J. van der Laan
752e6ad5336d5af0db9fe16d24c0c6aa25b74a3f Protect localhost and block-relay-only peers from eviction (Suhas Daftuar) Pull request description: Onion peers are disadvantaged under our eviction criteria, so prevent eventual eviction of them in the presence of contention for inbound slots by reserving some slots for localhost peers (sorted by longest uptime). Block-relay-only connections exist as a protection against eclipse attacks, by creating a path for block propagation that may be unknown to adversaries. Protect against inbound peer connection slot attacks from disconnecting such peers by attempting to protect up to 8 peers that are not relaying transactions but have provided us with blocks. Thanks to gmaxwell for suggesting these strategies. ACKs for top commit: laanwj: Code review ACK 752e6ad5336d5af0db9fe16d24c0c6aa25b74a3f Tree-SHA512: dbf089c77c1f747aa1dbbbc2e9c2799c628028b0918d0c336d8d0e5338acedd573b530eb3b689c7f603a17221e557268a9f5c3f585f204bfb12e5d2e76de39a3
2020-09-03Merge #19724: [net] Cleanup connection types- followupsWladimir J. van der Laan
eb1c5d090f4ef844dabc1e8bf3864c1afe1c791c [doc] Follow developer notes, add comment about missing default. (Amiti Uttarwar) d5a57cef62ee9e9d30f7e3b80e178149ceeef67c [doc] Describe connection types in more depth. (Amiti Uttarwar) 4829b6fcc6489b445f80689af6c2a1a919f176b1 [refactor] Simplify connection type logic in ThreadOpenConnections (Amiti Uttarwar) 1e563aed785565af6b7aed7f7399c52205d8f19c [refactor] Simplify check for block-relay-only connection. (Amiti Uttarwar) da3a0be61b025224231206cb4656e420453bfdeb [test] Add explicit tests that connection types get set correctly (Amiti Uttarwar) 1d74fc7df621b31d1b8adc9d7f53e7478d6e40b5 [trivial] Small style updates (Amiti Uttarwar) ff6b9081add3a40d53b1cc1352b57eeb46e41d45 [doc] Explain address handling logic in process messages (Amiti Uttarwar) dff16b184b1428a068d144e5e4dde7595b4729c0 [refactor] Restructure logic to check for addr relay. (Amiti Uttarwar) a6ab1e81f964df131cfa0e11e07bedb3283b823f [net] Remove unnecessary default args on OpenNetworkConnection (Amiti Uttarwar) 8d6ff46f55f373e344278ab3f1ac27b1dba36623 scripted-diff: Rename `OUTBOUND` ConnectionType to `OUTBOUND_FULL_RELAY` (Amiti Uttarwar) Pull request description: This PR addresses outstanding review comments from #19316. It further simplifies `net.cpp` complexity and adds documentation about design goals about different connection types. ACKs for top commit: naumenkogs: ACK eb1c5d090f4ef844dabc1e8bf3864c1afe1c791c laanwj: Code review ACK eb1c5d090f4ef844dabc1e8bf3864c1afe1c791c Tree-SHA512: 2fe14e428404c95661e5518c8c90db07ab5b9ebb1bac921b3bdf82b181f444fae379f8fc0a2b619e6b4693f01c55bd246fbd8c8eedadd96849a30de3161afee5
2020-09-03Merge #19805: wallet: Avoid deserializing unused records when salvagingfanquake
0bbe26a1af2aab2287b18048f80b3f70e63e0044 wallet: filter for keys only before record deser in salvage (Andrew Chow) 544e12a4e81633d222574eec253a1ff292d3c4a5 walletdb: Add KeyFilterFn to ReadKeyValue (Andrew Chow) Pull request description: When salvaging a wallet, the only things that matter are the private keys. It is not necessary to attempt to deserialize any other records, especially if those records are corrupted too. This PR adds a `KeyFilterFn` function callback to `ReadKeyValue` that salvage uses to filter for only the records that it wants. Of course doing it this way also lets us do other filters in the future from other places should we so desire. ACKs for top commit: ryanofsky: Code review ACK 0bbe26a1af2aab2287b18048f80b3f70e63e0044. Looks great! This should make the recovery code more robust. Normally it'd be good to have a test case for the problem this fixes, but Marco already wrote one in #19078, so I think we're covered laanwj: Code review ACK 0bbe26a1af2aab2287b18048f80b3f70e63e0044 Tree-SHA512: 8e3ee283a22a79273915711c4fb751f3c9b02ce94e6bf08dc468f1cfdf9fac35c693bbfd2435ce43c3a06c601b9b0a67e209621f6814bedfe3bc7a7ccc37bb01
2020-09-03Merge #19844: remove usage of boost::bindfanquake
e36f802fa4916586b53a989c0848389ad838b846 lint: add C++ code linter (fanquake) c4be50fea31e85f0e7151ed5ecaba531f6f929db remove usage of boost::bind (fanquake) Pull request description: `boost::bind` usage was removed in #13743. However a new usage snuck in as part of 2bc4c3eaf96f5f8490fc79280422916c5d14cde3 (#15225). ACKs for top commit: hebasto: ACK e36f802fa4916586b53a989c0848389ad838b846 practicalswift: ACK e36f802fa4916586b53a989c0848389ad838b846 -- patch looks correct Tree-SHA512: 2b0387c5443c184bcbf7df4849db1ed1296ff82c7b4ff0aff18334a400e56a472a972d18234d3866531a088d7a8da64688e58dc9f15daaad4048697c759d55ce
2020-09-02[doc] Follow developer notes, add comment about missing default.Amiti Uttarwar
2020-09-02[doc] Describe connection types in more depth.Amiti Uttarwar
2020-09-02[refactor] Simplify connection type logic in ThreadOpenConnectionsAmiti Uttarwar
Consolidate the logic to determine connection type into one conditional to clarify how they are chosen.
2020-09-02[refactor] Simplify check for block-relay-only connection.Amiti Uttarwar
Previously we deduced it was a block-relay-only based on presence of the m_tx_relay structure. Now we have the ability to identify it directly via a connection type accessor function.
2020-09-02[test] Add explicit tests that connection types get set correctlyAmiti Uttarwar
2020-09-02[trivial] Small style updatesAmiti Uttarwar
2020-09-02[doc] Explain address handling logic in process messagesAmiti Uttarwar
Co-authored-by: Suhas Daftuar <sdaftuar@gmail.com>
2020-09-02[refactor] Restructure logic to check for addr relay.Amiti Uttarwar
We previously identified if we relay addresses to the connection by checking for the existence of the m_addr_known data structure. With this commit, we answer this question based on the connection type. IsAddrRelayPeer() checked for the existence of the m_addr_known
2020-09-02[net] Remove unnecessary default args on OpenNetworkConnectionAmiti Uttarwar
2020-09-02scripted-diff: Rename `OUTBOUND` ConnectionType to `OUTBOUND_FULL_RELAY`Amiti Uttarwar
-BEGIN VERIFY SCRIPT- sed -i 's/OUTBOUND, /OUTBOUND_FULL_RELAY, /g' src/net.h sed -i 's/ConnectionType::OUTBOUND/ConnectionType::OUTBOUND_FULL_RELAY/g' src/test/net_tests.cpp src/test/fuzz/process_message.cpp src/test/fuzz/process_messages.cpp src/net.cpp src/test/denialofservice_tests.cpp src/net.h src/test/fuzz/net.cpp -END VERIFY SCRIPT-
2020-09-02Protect localhost and block-relay-only peers from evictionSuhas Daftuar
Onion peers are disadvantaged under our eviction criteria, so prevent eventual eviction of them in the presence of contention for inbound slots by reserving some slots for localhost peers (sorted by longest uptime). Block-relay-only connections exist as a protection against eclipse attacks, by creating a path for block propagation that may be unknown to adversaries. Protect against inbound peer connection slot attacks from disconnecting such peers by attempting to protect up to 8 peers that are not relaying transactions but appear to be full-nodes, sorted by recency of last delivered block. Thanks to gmaxwell for suggesting these strategies.
2020-09-02Merge #19840: Avoid callback when -blocknotify is emptyWladimir J. van der Laan
413e0d1d31ede6a9b539d63ec814b6e8044e35e2 Avoid callback when -blocknotify is empty (João Barbosa) Pull request description: ACKs for top commit: MarcoFalke: ACK 413e0d1d31ede6a9b539d63ec814b6e8044e35e2 practicalswift: ACK 413e0d1d31ede6a9b539d63ec814b6e8044e35e2 -- patch looks correct laanwj: Code review ACK 413e0d1d31ede6a9b539d63ec814b6e8044e35e2 Tree-SHA512: 915e796666b4e74dbb029ba5436e5573a4b881aad9e118f737bcff4024528b7ff3b00dd035138f63d30963cfd66195f6e53a2dbe429ee28cb6f0b9cc47218ecf
2020-09-02Merge #19857: net: improve nLastBlockTime and nLastTXTime documentationfanquake
d780293e1ee0f9e66bd2d88914694c17f9aaa0ca net: improve nLastBlockTime and nLastTXTime documentation (Jon Atack) Pull request description: Follow-up to #19731 to help alleviate confusion around `nLastBlockTime` and `nLastTXTime`, now also provided by the JSON-RPC API as `last_block` and `last_transaction` in `getpeerinfo` output. Thanks to John Newbery, credited in the commit, and to Dave Harding and Adam Jonas during discussions on how to best explain these in this week's Optech newsletter. ACKs for top commit: practicalswift: ACK d780293e1ee0f9e66bd2d88914694c17f9aaa0ca MarcoFalke: ACK d780293e1ee0f9e66bd2d88914694c17f9aaa0ca harding: ACK d780293e1ee0f9e66bd2d88914694c17f9aaa0ca . The added documentation matches my reading of the code and answers a question I had after seeing #19731 0xB10C: ACK d780293e1ee0f9e66bd2d88914694c17f9aaa0ca Tree-SHA512: 72d47cf50a099913c7e4753cb80e11785b26fb66fa3a8b6c382fde4ea725116f3d215f93d32a567246d269768e66159f8dcf017a1bbc6d5f2489a35f81c316fa
2020-09-02Merge #19610: p2p: refactor AlreadyHave(), CInv::type, INV/TX processingWladimir J. van der Laan
fb56d37612dea6666e7da73d671311a697570dae p2p: ensure inv is GenMsgTx before ToGenTxid in inv processing (John Newbery) aa3621385ee66c9dde5c632c0a79fba3a6ea2d62 test: use CInv::MSG_WITNESS_TX flag in p2p_segwit (Jon Atack) 24ee4f01eadb870435712950a1364cf0def06e9f p2p: make gtxid(.hash) and fAlreadyHave localvars const (Jon Atack) b1c855453bf2634e7fd9b53c4a76a8536fc9865d p2p: use CInv block message helpers in net_processing.cpp (Jon Atack) acd66421671e42a58e8e067868e1ab86268e3231 [net processing] Change AlreadyHaveTx() to take a GenTxid (John Newbery) 5fdfb80b861e0de3fcf8a57163b3f52af4b2df3b [net processing] Change AlreadyHaveBlock() to take block_hash argument (John Newbery) 430e183b89d00b4148f0b77a6fcacca2cd948202 [net processing] Remove mempool argument from AlreadyHaveBlock() (John Newbery) 42ca5618cae0fd9ef97d2006b17d896bc58cc17c [net processing] Split AlreadyHave() into separate block and tx functions (John Newbery) 39f1dc944554218911b0945fff7e6d06f3dab284 p2p: remove nFetchFlags from NetMsgType TX and INV processing (Jon Atack) 471714e1f024fb3b4892a7a8b34a76b83a13fa19 p2p: add CInv block message helper methods (Jon Atack) Pull request description: Building on #19590 and the recent `wtxid` and `GenTxid` changes, this is a refactoring and cleanup PR to simplify and improve some of the net processing code. Some of the diffs are best reviewed with `-w` to ignore spacing. Co-authored by John Newbery. ACKs for top commit: laanwj: Code review ACK fb56d37612dea6666e7da73d671311a697570dae jnewbery: utACK fb56d37612dea6666e7da73d671311a697570dae vasild: ACK fb56d3761 Tree-SHA512: ba39b58e6aaf850880a842fe5f6295e9f1870906ef690206acfc17140aae2ac854981e1066dbcd4238062478762fbd040ef772fdc2c50eea6869997c583e6a6d
2020-09-02Merge #14687: zmq: enable tcp keepaliveJonas Schnelli
c276df775914e4e42993c76e172ef159e3b830d4 zmq: enable tcp keepalive (mruddy) Pull request description: This addresses https://github.com/bitcoin/bitcoin/issues/12754. These changes enable node operators to address the silent dropping (by network middle boxes) of long-lived low-activity ZMQ TCP connections via further operating system level TCP keepalive configuration. For example, ZMQ sockets that publish block hashes can be affected in this way due to the length of time it sometimes takes between finding blocks (e.g.- sometimes more than an hour). Prior to this patch, operating system level TCP keepalive configurations would not take effect since the SO_KEEPALIVE option was not enabled on the underlying socket. There are additional ZMQ socket options related to TCP keepalive that can be set. However, I decided not to implement those options in this changeset because doing so would require adding additional bitcoin node configuration options, and would not yield a better outcome. I preferred a small, easily reviewable patch that doesn't add a bunch of new config options, with the tradeoff that the fine tuning would have to be done via well-documented operating system specific configurations. I tested this patch by running a node with: `./src/qt/bitcoin-qt -regtest -txindex -datadir=/tmp/node -zmqpubhashblock=tcp://127.0.0.1:28332 &` and connecting to it with: `python3 ./contrib/zmq/zmq_sub.py` Without these changes, `ss -panto | grep 28332 | grep ESTAB | grep bitcoin` will report no keepalive timer information. With these changes, the output from the prior command will show keepalive timer information consistent with the configuration at the time of connection establishment, e.g.-: `timer:(keepalive,119min,0)`. I also tested with a non-TCP transport and did not witness any adverse effects: `./src/qt/bitcoin-qt -regtest -txindex -datadir=/tmp/node -zmqpubhashblock=ipc:///tmp/bitcoin.block &` ACKs for top commit: adamjonas: Just to summarize for those looking to review - as of c276df775914e4e42993c76e172ef159e3b830d4 there are 3 tACKs (n-thumann, Haaroon, and dlogemann), 1 "looks good to me" (laanwj) with no NACKs or any show-stopping concerns raised. jonasschnelli: utACK c276df775914e4e42993c76e172ef159e3b830d4 Tree-SHA512: b884c2c9814e97e666546a7188c48f9de9541499a11a934bd48dd16169a900c900fa519feb3b1cb7e9915fc7539aac2829c7806b5937b4e1409b4805f3ef6cd1
2020-09-01wallet: Reload previously loaded wallets on GUI startupAndrew Chow
Enable the GUI to also use the load_on_startup feature. Wallets loaded in the GUI always have load_on_startup=true. When they are unloaded from the GUI, load_on_startup=false. To facilitate this change, UpdateWalletSetting is moved into the wallet module and called from within LoadWallet, RemoveWallet, and Createwallet. This change does not actually touch the GUI code but rather the wallet functions that are shared between the GUI and RPC.
2020-09-01net: improve nLastBlockTime and nLastTXTime documentationJon Atack
Co-authored-by: John Newbery <john@johnnewbery.com>
2020-09-01refactor: CTxMemPool::IsUnbroadcastTx() requires CTxMemPool::cs lockHennadii Stepanov
No change in behavior, the lock is already held at call sites.