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2019-11-05Merge #17243: p2p: add PoissonNextSend method that returns mockable timeMarcoFalke
1a8f0d5a74d5cc0000456932babf35301f5c1686 [tools] update nNextInvSend to use mockable time (Amiti Uttarwar) 4de630354fc6808b9b13b9e82da1a82f2f50f26a [tools] add PoissonNextSend method that returns mockable time (Amiti Uttarwar) Pull request description: Introduce a Poisson helper method that wraps the existing method to return `std::chrono::duration` type, which is mockable. Needed for https://github.com/bitcoin/bitcoin/pull/16698. ACKs for top commit: ajtowns: ACK 1a8f0d5a74d5cc0000456932babf35301f5c1686 MarcoFalke: re-ACK 1a8f0d5a74d5cc0000456932babf35301f5c1686 naumenkogs: ACK 1a8f0d5, and let's merge it and come back to it later. Tree-SHA512: 7e2325d7c55fc0b4357cb86b83e0c218ba269f678c1786342d8bc380bfd9696373bc24ff124b9ff17a6e761c62b2b44ff5247c3911e2afdc7cc5c20417e8290b
2019-11-05[tools] update nNextInvSend to use mockable timeAmiti Uttarwar
2019-11-04Merge #17164: p2p: Avoid allocating memory for addrKnown where we don't need itMarcoFalke
b6d2183858975abc961207c125c15791e531edcc Minor refactoring to remove implied m_addr_relay_peer. (User) a552e8477c5bcd22a5457f4f73a2fd6db8acd2c2 added asserts to check m_addr_known when it's used (User) 090b75c14be6b9ba2efe38a17d141c6e6af575cb p2p: Avoid allocating memory for addrKnown where we don't need it (User) Pull request description: We should allocate memory for addrKnown filter only for those peers which are expected to participate in address relay. Currently, we do it for all peers (including SPV and block-relay-only), which results in extra RAM where it's not needed. Upd: In future, we would still allow SPVs to ask for addrs, so allocation still will be done by default. However, they will be able to opt-out via [this proposal](https://lists.linuxfoundation.org/pipermail/bitcoin-dev/2019-October/017428.html) and then we could save some more memory. This PR still saves memory for block-relay-only peers immediately after merging. Top commit has no ACKs. Tree-SHA512: e84d93b2615556d466f5ca0e543580fde763911a3bfea3127c493ddfaba8f05c8605cb94ff795d165af542b594400995a2c51338185c298581408687e7812463
2019-10-30Merge #15921: validation: Tidy up ValidationState interfaceWladimir J. van der Laan
3004d5a12d09d94bfc4dee2a8e8f2291996a4aaf [validation] Remove fMissingInputs from AcceptToMemoryPool() (John Newbery) c428622a5bb1e37b2e6ab2c52791ac05d9271238 [validation] Remove unused first_invalid parameter from ProcessNewBlockHeaders() (John Newbery) 7204c6434b944f6ad51b3c895837729d3aa56eea [validation] Remove useless ret parameter from Invalid() (John Newbery) 1a37de4b3174d19a6d8691ae07e92b32fdfaef11 [validation] Remove error() calls from Invalid() calls (John Newbery) 067981e49246822421a7bcc720491427e1dba8a3 [validation] Tidy Up ValidationResult class (John Newbery) a27a2957ed9afbe5a96caa5f0f4cbec730d27460 [validation] Add CValidationState subclasses (John Newbery) Pull request description: Carries out some remaining tidy-ups remaining after PR 15141: - split ValidationState into TxValidationState and BlockValidationState (commit from ajtowns) - various minor code style tidy-ups to the ValidationState class - remove the useless `ret` parameter from `ValidationState::Invalid()` - remove the now unused `first_invalid` parameter from `ProcessNewBlockHeaders()` - remove the `fMissingInputs` parameter from `AcceptToMemoryPool()`, and deal with missing inputs the same way as other errors by using the `TxValidationState` object. Tip for reviewers (thanks ryanofsky!): The first commit ("[validation] Add CValidationState subclasses" ) is huge and can be easier to start reviewing if you revert the rote, mechanical changes: Substitute the commit hash of commit "[validation] Add CValidationState subclasses" for <CommitHash> in the commands below. ```sh git checkout <CommitHash> git grep -l ValidationState | xargs sed -i 's/BlockValidationState\|TxValidationState/CValidationState/g' git grep -l ValidationResult | xargs sed -i 's/BlockValidationResult\|TxValidationResult/ValidationInvalidReason/g' git grep -l MaybePunish | xargs sed -i 's/MaybePunishNode\(ForBlock\|ForTx\)/MaybePunishNode/g' git diff HEAD^ ``` After that it's possible to easily see the mechanical changes with: ```sh git log -p -n1 -U0 --word-diff-regex=. <CommitHash> ``` ACKs for top commit: laanwj: ACK 3004d5a12d09d94bfc4dee2a8e8f2291996a4aaf amitiuttarwar: code review ACK 3004d5a12d09d94bfc4dee2a8e8f2291996a4aaf. Also built & ran tests locally. fjahr: Code review ACK 3004d5a12d09d94bfc4dee2a8e8f2291996a4aaf . Only nit style change and pure virtual destructor added since my last review. ryanofsky: Code review ACK 3004d5a12d09d94bfc4dee2a8e8f2291996a4aaf. Just whitespace change and pure virtual destructor added since last review. Tree-SHA512: 511de1fb380a18bec1944ea82b513b6192df632ee08bb16344a2df3c40811a88f3872f04df24bc93a41643c96c48f376a04551840fd804a961490d6c702c3d36
2019-10-29[validation] Remove fMissingInputs from AcceptToMemoryPool()John Newbery
Handle this failure in the same way as all other failures: call Invalid() with the reasons for the failure.
2019-10-29[validation] Remove unused first_invalid parameter from ProcessNewBlockHeaders()John Newbery
No callers use the returned value in first_invalid. Remove it from the function signature and don't set it in the function.
2019-10-29[validation] Add CValidationState subclassesJohn Newbery
Split CValidationState into TxValidationState and BlockValidationState to store validation results for transactions and blocks respectively.
2019-10-28Pass NodeContext, ConnMan, BanMan references more placesRussell Yanofsky
So g_connman and g_banman globals can be removed next commit.
2019-10-28Merge #16202: p2p: Refactor network message deserializationfanquake
ed2dc5e48abed1cde6ab98025dc8212917d47d21 Add override/final modifiers to V1TransportDeserializer (Pieter Wuille) f342a5e61a73e1edf389b662d265d20cf26a1d51 Make resetting implicit in TransportDeserializer::Read() (Pieter Wuille) 6a91499496d76c2b3e84489e9723b60514fb08db Remove oversized message detection from log and interface (Pieter Wuille) b0e10ff4df3d4c70fb172ea8c3128c82e6e368bb Force CNetMessage::m_recv to use std::move (Jonas Schnelli) efecb74677222f6c70adf7f860c315f430d39ec4 Use adapter pattern for the network deserializer (Jonas Schnelli) 1a5c656c3169ba525f84145d19ce8c64f2cf1efb Remove transport protocol knowhow from CNetMessage / net processing (Jonas Schnelli) 6294ecdb8bb4eb7049a18c721ee8cb4a53d80a06 Refactor: split network transport deserializing from message container (Jonas Schnelli) Pull request description: **This refactors the network message deserialization.** * It transforms the `CNetMessage` into a transport protocol agnostic message container. * A new class `TransportDeserializer` (unique pointer of `CNode`) is introduced, handling the network buffer reading and the decomposing to a `CNetMessage` * **No behavioral changes** (in terms of disconnecting, punishing) * Moves the checksum finalizing into the `SocketHandler` thread (finalizing was in `ProcessMessages` before) The **optional last commit** makes the `TransportDeserializer` following an adapter pattern (polymorphic interface) to make it easier to later add a V2 transport protocol deserializer. Intentionally not touching the sending part. Pre-Requirement for BIP324 (v2 message transport protocol). Replacement for #14046 and inspired by a [comment](https://github.com/bitcoin/bitcoin/pull/14046#issuecomment-431528330) from sipa ACKs for top commit: promag: Code review ACK ed2dc5e48abed1cde6ab98025dc8212917d47d21. marcinja: Code review ACK ed2dc5e48abed1cde6ab98025dc8212917d47d21 ryanofsky: Code review ACK ed2dc5e48abed1cde6ab98025dc8212917d47d21. 4 cleanup commits added since last review. Unaddressed comments: ariard: Code review and tested ACK ed2dc5e. Tree-SHA512: bab8d87464e2e8742529e488ddcdc8650f0c2025c9130913df00a0b17ecdb9a525061cbbbd0de0251b76bf75a8edb72e3ad0dbf5b79e26f2ad05d61b4e4ded6d
2019-10-25added asserts to check m_addr_known when it's usedUser
2019-10-24Merge #16851: Continue relaying transactions after they expire from mapRelayMarcoFalke
168b781fe7f3f13b24c52a151f36de4cdd0a340a Continue relaying transactions after they expire from mapRelay (Anthony Towns) Pull request description: This change allows peers to request transactions even after they've expired from mapRelay and even if they're not doing mempool requests. This is intended to allow for CPFP of old transactions -- if parent tx P wasn't relayed due to low fees, then a higher fee rate child C is relayed, peers will currently request the parent P, but we prior to this patch, we will not relay it due to it not being in mapRelay. ACKs for top commit: MarcoFalke: re-ACK 168b781fe7f3f13b24c52a151f36de4cdd0a340a (only change is comment fixup) sdaftuar: re-ACK 168b781fe7f3f13b24c52a151f36de4cdd0a340a sipa: ACK 168b781fe7f3f13b24c52a151f36de4cdd0a340a Tree-SHA512: b206666dd1450cd0a161ae55fd1a7eda2c3d226842ba27d91fe463b551fd924b65b92551b14d6786692e15cf9a9a989666550dfc980b48ab0f8d4ca305bc7762
2019-10-24Merge #17004: validation: Remove REJECT code from CValidationStateWladimir J. van der Laan
9075d13153ce06cd59a45644831ecc43126e1e82 [docs] Add release notes for removal of REJECT reasons (John Newbery) 04a2f326ec0f06fb4fce1c4f93500752f05dede8 [validation] Fix REJECT message comments (John Newbery) e9d5a59e34ff2d538d8f5315efd9908bf24d0fdc [validation] Remove REJECT code from CValidationState (John Newbery) 0053e16714323c1694c834fdca74f064a1a33529 [logging] Don't log REJECT code when transaction is rejected (John Newbery) a1a07cfe99fc8cee30ba5976dc36b47b1f6532ab [validation] Fix peer punishment for bad blocks (John Newbery) Pull request description: We no longer send BIP 61 REJECT messages, so there's no need to set a REJECT code in the CValidationState object. Note that there is a minor bug fix in p2p behaviour here. Because the call to `MaybePunishNode()` in `PeerLogicValidation::BlockChecked()` only previously happened if the REJECT code was > 0 and < `REJECT_INTERNAL`, then there are cases were `MaybePunishNode()` can get called where it wasn't previously: - when `AcceptBlockHeader()` fails with `CACHED_INVALID`. - when `AcceptBlockHeader()` fails with `BLOCK_MISSING_PREV`. Note that `BlockChecked()` cannot fail with an 'internal' reject code. The only internal reject code was `REJECT_HIGHFEE`, which was only set in ATMP. This reverts a minor bug introduced in 5d08c9c579ba8cc7b684105c6a08263992b08d52. ACKs for top commit: ariard: ACK 9075d13, changes since last reviewed are splitting them in separate commits to ease understanding and fix nits fjahr: ACK 9075d13153ce06cd59a45644831ecc43126e1e82, confirmed diff to last review was fixing nits in docs/comments. ryanofsky: Code review ACK 9075d13153ce06cd59a45644831ecc43126e1e82. Only changes since last review are splitting the main commit and updating comments Tree-SHA512: 58e8a1a4d4e6f156da5d29fb6ad6a62fc9c594bbfc6432b3252e962d0e9e10149bf3035185dc5320c46c09f3e49662bc2973ec759679c0f3412232087cb8a3a7
2019-10-23Continue relaying transactions after they expire from mapRelayAnthony Towns
2019-10-18Remove transport protocol knowhow from CNetMessage / net processingJonas Schnelli
2019-10-18Refactor: split network transport deserializing from message containerJonas Schnelli
2019-10-16p2p: Avoid allocating memory for addrKnown where we don't need itUser
2019-10-15Remove unused includespracticalswift
2019-10-10[validation] Fix REJECT message commentsJohn Newbery
2019-10-10[validation] Fix peer punishment for bad blocksJohn Newbery
Because the call to MaybePunishNode() in PeerLogicValidation::BlockChecked() only previously happened if the REJECT code was > 0 and < REJECT_INTERNAL, then there are cases were MaybePunishNode() can get called where it wasn't previously: - when AcceptBlockHeader() fails with CACHED_INVALID. - when AcceptBlockHeader() fails with BLOCK_MISSING_PREV. Note that BlockChecked() cannot fail with an 'internal' reject code. The only internal reject code was REJECT_HIGHFEE, which was only set in ATMP. This change restores the behaviour pre-commit 5d08c9c579ba8cc7b684105c6a08263992b08d52 which did punish nodes that sent us CACHED_INVALID and BLOCK_MISSING_PREV blocks.
2019-10-09Merge #15437: p2p: Remove BIP61 reject messagesWladimir J. van der Laan
fa25f43ac5692082dba3f90456c501eb08f1b75c p2p: Remove BIP61 reject messages (MarcoFalke) Pull request description: Reject messages (BIP 61) appear in the following settings: * Parsing of reject messages (in case `-debug=net` is set, off by default). This has only been used for a single `LogPrint` call for several releases now. Such logging is completely meaningless to us and should thus be removed. * The sending of reject messages (in case `-enablebip61` is set, off by default). This can be used to debug a node that is under our control. Instead of hacking this debugging into the p2p protocol, it could be more easily achieved by parsing the debug log. (Use `-printtoconsole` to have it as stream, or read from the `debug.log` file like our python function `assert_debug_log` in the test framework does) Having to maintain all of this logic and code to accommodate debugging, which can be achieved by other means a lot easier, is a burden. It makes review on net processing changes a lot harder, since the reject message logic has to be carried around without introducing any errors or DOS vectors. ACKs for top commit: jnewbery: utACK fa25f43ac5692082dba3f90456c501eb08f1b75c laanwj: I'm still not 100% convinced that I like getting rid of BIP61 conceptually, but apparently everyone wants it, code review ACK fa25f43ac5692082dba3f90456c501eb08f1b75c. ryanofsky: Code review ACK fa25f43ac5692082dba3f90456c501eb08f1b75c Tree-SHA512: daf55254202925e56be3d6cfb3c1c804e7a82cecb1dd1e5bd7b472bae989fd68ac4f21ec53fc46751353056fd645f7f877bebcb0b40920257991423a3d99e0be
2019-10-03feefilter: Compute the absolute fee rather than stored rate to match mempool ↵Gregory Sanders
acceptance logic
2019-10-02p2p: Remove BIP61 reject messagesMarcoFalke
2019-09-23txmempool: Make entry time type-safe (std::chrono)MarcoFalke
2019-09-18Merge #14696: qa: Add explicit references to related CVE's in ↵Wladimir J. van der Laan
p2p_invalid_block test. 0c62e3aa73839e97e65a3155e06a98d84b700a1e New regression testing for CVE-2018-17144, CVE-2012-2459, and CVE-2010-5137. (lucash-dev) 38bfca6bb2ad68719415e9c54a981441052da072 Added comments referencing multiple CVEs in tests and production code. (lucash-dev) Pull request description: This functional test includes two scenarios that test for regressions of vulnerabilities, but they are only briefly described. There are freely available documents explaining in detail the issues, but without explicit mentions, the developer trying to maintain the code needs an additional step of digging in commit history and PR conversations to figure it out. Added comments to explicitly mention CVE-2018-17144 and CVE-2012-2459, for more complete documentation. This improves developer experience by making understanding the tests easier. ACKs for top commit: laanwj: ACK 0c62e3aa73839e97e65a3155e06a98d84b700a1e, checked the CVE numbers, thanks for adding documentation Tree-SHA512: 3ee05351745193b8b959e4a25d50f25a693b2d24b0732ed53cf7d5882df40b5dd0f1877bd5c69cffb921d4a7acf9deb3cc1160b96dc730d9b5984151ad06b7c9
2019-09-11doc: add comments clarifying how local services are advertisedJames O'Beirne
Recent questions have come up regarding dynamic service registration (see https://github.com/bitcoin/bitcoin/pull/16442#discussion_r308702676 and the assumeutxo project, which needs to dynamically flip NODE_NETWORK). While investigating how dynamic service registration might work, I was confused about how we convey local services to peers. This adds some documentation that hopefully clarifies this process.
2019-09-07Merge #15759: p2p: Add 2 outbound block-relay-only connectionsfanquake
0ba08020c9791f7caf5986ad6490c16a2b66cd83 Disconnect peers violating blocks-only mode (Suhas Daftuar) 937eba91e1550bc3038dc541c236ac83e0a0e6d5 doc: improve comments relating to block-relay-only peers (Suhas Daftuar) 430f489027f15c1e4948ea4378954df24e3fee88 Don't relay addr messages to block-relay-only peers (Suhas Daftuar) 3a5e885306ea954d7eccdc11502e91a51dab8ec6 Add 2 outbound block-relay-only connections (Suhas Daftuar) b83f51a4bbe29bf130a2b0c0e85e5bffea107f75 Add comment explaining intended use of m_tx_relay (Suhas Daftuar) e75c39cd425f8c4e5b6bbb2beecb9c80034fefe1 Check that tx_relay is initialized before access (Suhas Daftuar) c4aa2ba82211ea5988ed7fe21e1b08bc3367e6d4 [refactor] Change tx_relay structure to be unique_ptr (Suhas Daftuar) 4de0dbac9b286c42a9b10132b7c2d76712f1a319 [refactor] Move tx relay state to separate structure (Suhas Daftuar) 26a93bce29fd813e1402b013f402869c25b656d1 Remove unused variable (Suhas Daftuar) Pull request description: Transaction relay is optimized for a combination of redundancy/robustness as well as bandwidth minimization -- as a result transaction relay leaks information that adversaries can use to infer the network topology. Network topology is better kept private for (at least) two reasons: (a) Knowledge of the network graph can make it easier to find the source IP of a given transaction. (b) Knowledge of the network graph could be used to split a target node or nodes from the honest network (eg by knowing which peers to attack in order to achieve a network split). We can eliminate the risks of (b) by separating block relay from transaction relay; inferring network connectivity from the relay of blocks/block headers is much more expensive for an adversary. After this commit, bitcoind will make 2 additional outbound connections that are only used for block relay. (In the future, we might consider rotating our transaction-relay peers to help limit the effects of (a).) ACKs for top commit: sipa: ACK 0ba08020c9791f7caf5986ad6490c16a2b66cd83 ajtowns: ACK 0ba08020c9791f7caf5986ad6490c16a2b66cd83 -- code review, ran tests. ran it on mainnet for a couple of days with MAX_BLOCKS_ONLY_CONNECTIONS upped from 2 to 16 and didn't observe any unexpected behaviour: it disconnected a couple of peers that tried sending inv's, and it successfully did compact block relay with some block relay peers. TheBlueMatt: re-utACK 0ba08020c9791f7caf5986ad6490c16a2b66cd83. Pointed out that stats.fRelayTxes was sometimes uninitialized for blocksonly peers (though its not a big deal and only effects RPC), which has since been fixed here. Otherwise changes are pretty trivial so looks good. jnewbery: utACK 0ba08020c9791f7caf5986ad6490c16a2b66cd83 jamesob: ACK https://github.com/bitcoin/bitcoin/commit/0ba08020c9791f7caf5986ad6490c16a2b66cd83 Tree-SHA512: 4c3629434472c7dd4125253417b1be41967a508c3cfec8af5a34cad685464fbebbb6558f0f8f5c0d4463e3ffa4fa3aabd58247692cb9ab8395f4993078b9bcdf
2019-09-04Disconnect peers violating blocks-only modeSuhas Daftuar
If we set fRelay=false in our VERSION message, and a peer sends an INV or TX message anyway, disconnect. Since we use fRelay=false to minimize bandwidth, we should not tolerate remaining connected to a peer violating the protocol.
2019-09-04doc: improve comments relating to block-relay-only peersSuhas Daftuar
2019-09-04Don't relay addr messages to block-relay-only peersSuhas Daftuar
We don't want relay of addr messages to leak information about these network links.
2019-09-04Add 2 outbound block-relay-only connectionsSuhas Daftuar
Transaction relay is primarily optimized for balancing redundancy/robustness with bandwidth minimization -- as a result transaction relay leaks information that adversaries can use to infer the network topology. Network topology is better kept private for (at least) two reasons: (a) Knowledge of the network graph can make it easier to find the source IP of a given transaction. (b) Knowledge of the network graph could be used to split a target node or nodes from the honest network (eg by knowing which peers to attack in order to achieve a network split). We can eliminate the risks of (b) by separating block relay from transaction relay; inferring network connectivity from the relay of blocks/block headers is much more expensive for an adversary. After this commit, bitcoind will make 2 additional outbound connections that are only used for block relay. (In the future, we might consider rotating our transaction-relay peers to help limit the effects of (a).)
2019-09-04Check that tx_relay is initialized before accessSuhas Daftuar
2019-08-28[refactor] Change tx_relay structure to be unique_ptrSuhas Daftuar
2019-08-28[refactor] Move tx relay state to separate structureSuhas Daftuar
2019-08-15Merge #16443: refactor: have CCoins* data managed under CChainStateMarcoFalke
582d2cd74754d6b9a2394616a9c82a89d2d71976 Cover UTXO set access with lock annotations (James O'Beirne) 569353068568444a25b301bbd6513bb510157dc9 refactor: have CCoins* data managed under CChainState (James O'Beirne) fae6ab6aed3b9fdc9201bb19a307dfc3d9b89891 refactor: pcoinsTip -> CChainState::CoinsTip() (James O'Beirne) Pull request description: This is part of the [assumeutxo project](https://github.com/bitcoin/bitcoin/projects/11): Parent PR: #15606 Issue: #15605 Specification: https://github.com/jamesob/assumeutxo-docs/tree/2019-04-proposal/proposal --- This change encapsulates UTXO set data within CChainState instances, removing global data `pcoinsTip` and `pcoinsviewdb`. This is necessary if we want to maintain multiple chainstates with their own rendering of the UTXO set. We introduce a class CoinsViews which consolidates the construction of a CCoins* hierarchy. This commit could be broken into smaller pieces, but it would require more ephemeral diffs to, e.g., temporarily change CCoinsViewDB's constructor invocations. ACKs for top commit: Sjors: reACK 582d2cd74754d6b9a2394616a9c82a89d2d71976 MarcoFalke: ACK 582d2cd747 Tree-SHA512: ec9d904fe5dca8cd2dc4b7916daa5d8bab30856dd4645987300f905e0a19f9919fce4f9d1ff03eda982943ca73e6e9a746be6cf53b46510de36e8c81a1eafba1
2019-08-11Replace the use of fWhitelisted by permission checksnicolas.dorier
2019-08-11Do not disconnect peer for asking mempool if it has NO_BAN permissionnicolas.dorier
2019-08-06refactor: pcoinsTip -> CChainState::CoinsTip()James O'Beirne
This aliasing makes subsequent commits easier to review; eventually CoinsTip() will return the CCoinsViewCache managed by CChainState.
2019-08-05Merge #16197: net: Use mockable time for tx downloadMarcoFalke
fab365835639a3da03f8ad9a58a0db6c6c4c2314 [qa] Test that getdata requests work as expected (Suhas Daftuar) fa883ab35ad2d4328e35b1e855d0833740a6b910 net: Use mockable time for tx download (MarcoFalke) Pull request description: Two commits: * First commit changes to mockable time for tx download (refactoring, should only have an effect on regtest) * Second commit adds a test that uses mocktime to test tx download ACKs for top commit: laanwj: code review ACK 16197/commits/fab365835639a3da03f8ad9a58a0db6c6c4c2314 jamesob: ACK https://github.com/bitcoin/bitcoin/pull/16197/commits/fab365835639a3da03f8ad9a58a0db6c6c4c2314 Tree-SHA512: 3a64a3e283ec4bab1f6e506404b11f0a564a5b61d2a7508ae738a61f035e57220484c66e0ae47d847fe9f7e3ff5cc834909d7b34a9bbcea6abe01f8742806908
2019-07-24refactor : use RelayTransaction in BroadcastTransaction utilityAntoine Riard
To do so, we also refactor RelayTransaction to take a txid instead of passing a tx
2019-06-25Merge #16188: net: Document what happens to getdata of unknown typefanquake
dddd9270f85bd2e71fd281a0c6b4053e02fce93c net: Document what happens to getdata of unknonw type (MarcoFalke) Pull request description: Any getdata of unknown type will never be processed and blocks all future messages from a peer. This isn't obviously clear from reading the code, so document it. Top commit has no ACKs. Tree-SHA512: 4f8e43bbe6534242facfcfffae28b7a6aa2d228841fa2146a87d494e69f614b0da23cf7a5f3d4367358a7c1981fe2ec196a21c437ae1653f1c7e0351be22598a
2019-06-20net: Document what happens to getdata of unknonw typeMarcoFalke
2019-06-18Merge #16092: Don't use global (external) symbols for symbols that are used ↵MarcoFalke
in only one translation unit 0959d37e3e Don't use global (external) symbols for symbols that are used in only one translation unit (practicalswift) Pull request description: Don't use global (external) symbols for symbols that are used in only one translation unit. Before: ``` $ for SYMBOL in $(nm src/bitcoind | grep -E ' [BD] ' | c++filt | cut -f3- -d' ' | grep -v @ | grep -v : | sort | grep '[a-z]' | sort -u | grep -vE '(^_|typeinfo|vtable)'); do REFERENCES=$(git grep -lE "([^a-zA-Z]|^)${SYMBOL}([^a-zA-Z]|\$)" -- "*.cpp" "*.h") N_REFERENCES=$(wc -l <<< "${REFERENCES}") if [[ ${N_REFERENCES} > 1 ]]; then continue fi echo "Global symbol ${SYMBOL} is used in only one translation unit: ${REFERENCES}" done Global symbol g_chainstate is used in only one translation unit: src/validation.cpp Global symbol g_ui_signals is used in only one translation unit: src/ui_interface.cpp Global symbol instance_of_cmaincleanup is used in only one translation unit: src/validation.cpp Global symbol instance_of_cnetcleanup is used in only one translation unit: src/net.cpp Global symbol instance_of_cnetprocessingcleanup is used in only one translation unit: src/net_processing.cpp Global symbol pindexBestForkBase is used in only one translation unit: src/validation.cpp Global symbol pindexBestForkTip is used in only one translation unit: src/validation.cpp $ ``` After: ``` $ for SYMBOL in $(nm src/bitcoind | grep -E ' [BD] ' | c++filt | cut -f3- -d' ' | grep -v @ | grep -v : | sort | grep '[a-z]' | sort -u | grep -vE '(^_|typeinfo|vtable)'); do REFERENCES=$(git grep -lE "([^a-zA-Z]|^)${SYMBOL}([^a-zA-Z]|\$)" -- "*.cpp" "*.h") N_REFERENCES=$(wc -l <<< "${REFERENCES}") if [[ ${N_REFERENCES} > 1 ]]; then continue fi echo "Global symbol ${SYMBOL} is used in only one translation unit: ${REFERENCES}" done $ ``` ♻️ Think about future generations: save the global namespace from unnecessary pollution! ♻️ ACKs for commit 0959d3: Empact: ACK https://github.com/bitcoin/bitcoin/pull/16092/commits/0959d37e3e0f80010a78d175e3846dabf5d35919 MarcoFalke: ACK 0959d37e3e0f80010a78d175e3846dabf5d35919 hebasto: ACK 0959d37e3e0f80010a78d175e3846dabf5d35919 promag: ACK 0959d37. Tree-SHA512: 722f66bb50450f19b57e8a8fbe949f30cd651eb8564e5787cbb772a539bf3a288c048dc49e655fd73ece6a46f6dafade515ec4004729bf2b3ab83117b7c5d153
2019-06-17net: Use mockable time for tx downloadMarcoFalke
2019-06-12Merge #15834: Fix transaction relay bugs introduced in #14897 and expire ↵MarcoFalke
transactions from peer in-flight map 308b76732f Fix bug around transaction requests (Suhas Daftuar) f635a3ba11 Expire old entries from the in-flight tx map (Suhas Daftuar) e32e08407e Remove NOTFOUND transactions from in-flight data structures (Suhas Daftuar) 23163b7593 Add an explicit memory bound to m_tx_process_time (Suhas Daftuar) 218697b645 Improve NOTFOUND comment (Suhas Daftuar) Pull request description: #14897 introduced several bugs that could lead to a node no longer requesting transactions from one or more of its peers. Credit to ajtowns for originally reporting many of these bugs along with an originally proposed fix in #15776. This PR does a few things: - Fix a bug in NOTFOUND processing, where the in-flight map for a peer was keeping transactions it shouldn't - Eliminate the possibility of a memory attack on the CNodeState `m_tx_process_time` data structure by explicitly bounding its size - Remove entries from a peer's in-flight map after 10 minutes, so that we should always eventually resume transaction requests even if there are other bugs like the NOTFOUND one - Fix a bug relating to the coordination of request times when multiple peers announce the same transaction The expiry mechanism added here is something we'll likely want to remove in the future, but is belt-and-suspenders for now to try to ensure we don't have other bugs that could lead to transaction relay failing due to some unforeseen conditions. ACKs for commit 308b76: ajtowns: utACK 308b76732f97020c86977e29c854e8e27262cf7c morcos: light ACK 308b767 laanwj: Code review ACK 308b76732f97020c86977e29c854e8e27262cf7c jonatack: Light ACK 308b76732f97020c86977e29c854e8e27262cf7c. jamesob: ACK 308b76732f MarcoFalke: ACK 308b76732f97020c86977e29c854e8e27262cf7c (Tested two of the three bugs this pull fixes, see comment above) jamesob: Concept ACK https://github.com/bitcoin/bitcoin/pull/15834/commits/308b76732f97020c86977e29c854e8e27262cf7c MarcoFalke: ACK 308b76732f Tree-SHA512: 8865dca5294447859d95655e8699085643db60c22f0719e76e961651a1398251bc932494b68932e33f68d4f6084579ab3bed7d0e7dd4ac6c362590eaf9414eda
2019-06-06Merge #16129: refactor: Remove unused includesMarcoFalke
67f4e9c522 Include core_io.h from core_read.cpp (practicalswift) eca9767673 Make reasoning about dependencies easier by not including unused dependencies (practicalswift) Pull request description: Make reasoning about dependencies easier by not including unused dependencies. Please note that the removed headers are _not_ "transitively included" by other still included headers. Thus the removals are real. As an added bonus this change means less work for the preprocessor/compiler. At least 51 393 lines of code no longer needs to be processed: ``` $ git diff -u HEAD~1 | grep -E '^\-#include ' | cut -f2 -d"<" | cut -f1 -d">" | \ sed 's%^%src/%g' | xargs cat | wc -l 51393 ``` Note that 51 393 is the lower bound: the real number is likely much higher when taking into account transitively included headers :-) ACKs for commit 67f4e9: Tree-SHA512: 0c8868aac59813f099ce53d5307eed7962dd6f2ff3546768ef9e5c4508b87f8210f1a22c7e826c3c06bebbf28bdbfcf1628ed354c2d0fdb9a31a42cefb8fdf13
2019-06-06Don't use global (external) symbols for symbols that are used in only one ↵practicalswift
translation unit
2019-06-05Merge #15976: refactor: move methods under CChainState (pt. 1)Wladimir J. van der Laan
403e677c9 refactoring: IsInitialBlockDownload -> CChainState (James O'Beirne) 3ccbc376d refactoring: FlushStateToDisk -> CChainState (James O'Beirne) 4d6688603 refactoring: introduce ChainstateActive() (James O'Beirne) d7c97edee move-only: make the CChainState interface public (James O'Beirne) Pull request description: This is part of the [assumeutxo project](https://github.com/bitcoin/bitcoin/projects/11): Parent PR: #15606 Issue: #15605 Specification: https://github.com/jamesob/assumeutxo-docs/tree/2019-04-proposal/proposal --- This changeset starts moving functionality intimately related to CChainState into methods. Parameterizing these functions by a particular CChainState is necessary for the use of multiple chainstates simultaneously (e.g. for asynchronous background validation). In this change, we - make the CChainState interface public - since other units will start to invoke its methods directly, - introduce `::ChainstateActive()`, the CChainState equivalent for `::ChainActive()`, - and move `IsInitialBlockDownload()` and `FlushStateToDisk()` into methods on CChainState. Independent of assumeutxo, these changes better encapsulate chainstate behavior and allow easier use from a testing context. There are more methods that we'll move in the future, but they require other substantial changes (i.e. moving ownership of the `CCoinsView*` hierarchy into CChainState) so we'll save them for future PRs. --- The first move-only commit is most easily reviewed with `git diff ... --color-moved=dimmed_zebra`. ACKs for commit 403e67: Empact: utACK https://github.com/bitcoin/bitcoin/pull/15976/commits/403e677c9ebbf9744733010e6b0c2d1b182ee850 no need to address my nits herein Sjors: utACK 403e677 ryanofsky: utACK 403e677c9ebbf9744733010e6b0c2d1b182ee850. Only change since previous review is removing global state comment as suggested. MarcoFalke: utACK 403e677c9e, though the diff still seems a bit bloated with some unnecessary changes in the second commit. promag: utACK 403e677 and rebased with current [master](c7cfd20a7). Tree-SHA512: 6fcf260bb2dc201361170c0b4547405366f5f331fcc3a2bac29b24442814b7b244ca1b58aac5af716885f9a130c343b544590dff780da0bf835c7c5b3ccb2257
2019-06-02Added comments referencing multiple CVEs in tests and production code.lucash-dev
This commit adds comments referencing multiple CVEs both in production and test code. CVEs covered in this commit: CVE-2010-5137 CVE-2010-5139 CVE-2010-5141 CVE-2012-1909 CVE-2012-2459 CVE-2012-3789 CVE-2018-17144
2019-06-02Make reasoning about dependencies easier by not including unused dependenciespracticalswift
2019-05-28Fix bug around transaction requestsSuhas Daftuar
If a transaction is already in-flight when a peer announces a new tx to us, we schedule a time in the future to reconsider whether to download. At that future time, there was a bug that would prevent transactions from being rescheduled for potential download again (ie if the transaction was still in-flight at the time of reconsideration, such as from some other peer). Fix this.
generated by cgit v1.2.3 (git 2.26.2) at 2024-09-02 09:33:58 +0000