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2016-06-22BIP141: Other consensus critical limits, and BIP145Pieter Wuille
Includes changes by Suhas Daftuar, Luke-jr, and mruddy.
2016-06-22Refactor script validation to observe amountsPieter Wuille
This is a preparation for BIP143 support.
2016-06-22BIP141: Commitment structure and deploymentPieter Wuille
Includes a fix by Suhas Daftuar and LongShao007
2016-06-22Merge #8068: Compact BlocksWladimir J. van der Laan
48efec8 Fix some minor compact block issues that came up in review (Matt Corallo) ccd06b9 Elaborate bucket size math (Pieter Wuille) 0d4cb48 Use vTxHashes to optimize InitData significantly (Matt Corallo) 8119026 Provide a flat list of txid/terators to txn in CTxMemPool (Matt Corallo) 678ee97 Add BIP 152 to implemented BIPs list (Matt Corallo) 56ba516 Add reconstruction debug logging (Matt Corallo) 2f34a2e Get our "best three" peers to announce blocks using cmpctblocks (Matt Corallo) 927f8ee Add ability to fetch CNode by NodeId (Matt Corallo) d25cd3e Add receiver-side protocol implementation for CMPCTBLOCK stuff (Matt Corallo) 9c837d5 Add sender-side protocol implementation for CMPCTBLOCK stuff (Matt Corallo) 00c4078 Add protocol messages for short-ids blocks (Matt Corallo) e3b2222 Add some blockencodings tests (Matt Corallo) f4f8f14 Add TestMemPoolEntryHelper::FromTx version for CTransaction (Matt Corallo) 85ad31e Add partial-block block encodings API (Matt Corallo) 5249dac Add COMPACTSIZE wrapper similar to VARINT for serialization (Matt Corallo) cbda71c Move context-required checks from CheckBlockHeader to Contextual... (Matt Corallo) 7c29ec9 If AcceptBlockHeader returns true, pindex will be set. (Matt Corallo) 96806c3 Stop trimming when mapTx is empty (Pieter Wuille)
2016-06-20Merge #8179: Evict orphans which are included or precluded by accepted blocks.Wladimir J. van der Laan
54326a6 Increase maximum orphan size to 100,000 bytes. (Gregory Maxwell) 8c99d1b Treat orphans as implicit inv for parents, discard when parents rejected. (Gregory Maxwell) 11cc143 Adds an expiration time for orphan tx. (Gregory Maxwell) db0ffe8 This eliminates the primary leak that causes the orphan map to always grow to its maximum size. (Gregory Maxwell) 1b0bcc5 Track orphan by prev COutPoint rather than prev hash (Pieter Wuille)
2016-06-19Move context-required checks from CheckBlockHeader to Contextual...Matt Corallo
2016-06-15Add recently accepted blocks and txn to AttemptToEvictConnection.Gregory Maxwell
This protects any not-already-protected peers who were the most recent four to relay transactions and most recent four to send blocks to us.
2016-06-15Adds an expiration time for orphan tx.Gregory Maxwell
This prevents higher order orphans and other junk from holding positions in the orphan map. Parents delayed twenty minutes are more are unlikely to ever arrive. The freed space will improve the orphan matching success rate for other transactions.
2016-06-14Remove bad chain alert partition checkBtcDrak
As per meeting 2016-03-31 https://bitcoincore.org/en/meetings/2016/03/31/#bad-chain-alerts The partition checker was producing huge number of false-positives and was disabled in 0.12.1 on the understanding it would either be fixed in 0.13 or removed entirely from master if not.
2016-06-08Merge #7935: Versionbits: GBT supportPieter Wuille
12c708a getblocktemplate: Use version/force mutation to support pre-BIP9 clients (Luke Dashjr) 9879060 getblocktemplate: Explicitly handle the distinction between GBT-affecting softforks vs not (Luke Dashjr) 72cd6b2 qa/rpc-tests: bip9-softforks: Add tests for getblocktemplate versionbits updates (Luke Dashjr) d3df40e Implement BIP 9 GBT changes (Luke Dashjr)
2016-06-06Implement BIP 9 GBT changesLuke Dashjr
- BIP9DeploymentInfo struct for static deployment info - VersionBitsDeploymentInfo: Avoid C++11ism by commenting parameter names - getblocktemplate: Make sure to set deployments in the version if it is LOCKED_IN - In this commit, all rules are considered required for clients to support
2016-05-20Consensus: Decouple from chainparams.o and timedata.oJorge Timón
Do it for the consensus-critical functions: - CheckBlockHeader - CheckBlock - ContextualCheckBlockHeader
2016-05-17Make ProcessNewBlock dbp const and update commentPieter Wuille
2016-05-16Remove unneeded feerate param from RelayTransaction/AcceptToMemoryPool.Gregory Maxwell
2016-05-10Merge #8019: Remove state arg from ReconsiderBlock, rename to ↵Wladimir J. van der Laan
ResetBlockFailureFlags 657e07e Rename ReconsiderBlock func to reflect real behavior (instagibbs) addb9d2 Remove state arg from ReconsiderBlock (instagibbs)
2016-05-09Rename ReconsiderBlock func to reflect real behaviorinstagibbs
2016-05-09Merge #7976: Remove obsolete reference to CValidationState from UpdateCoins.Wladimir J. van der Laan
c8b9248 Remove obsolete reference to CValidationState from UpdateCoins. (21E14)
2016-05-06Remove state arg from ReconsiderBlockinstagibbs
2016-05-06Merge #7815: Break circular dependency main ↔ txdbWladimir J. van der Laan
99e7075 Break circular dependency main ↔ txdb (Wladimir J. van der Laan)
2016-05-05Merge #7840: Several performance and privacy improvements to inv/mempool ↵Wladimir J. van der Laan
handling b559914 Move bloom and feerate filtering to just prior to tx sending. (Gregory Maxwell) 4578215 Return mempool queries in dependency order (Pieter Wuille) ed70683 Handle mempool requests in send loop, subject to trickle (Pieter Wuille) dc13dcd Split up and optimize transaction and block inv queues (Pieter Wuille) f2d3ba7 Eliminate TX trickle bypass, sort TX invs for privacy and priority. (Gregory Maxwell)
2016-04-30Remove obsolete reference to CValidationState from UpdateCoins.21E14
2016-04-20Explicitly pass CChainParams to ConnectBlockface
2016-04-20Eliminate TX trickle bypass, sort TX invs for privacy and priority.Gregory Maxwell
Previously Bitcoin would send 1/4 of transactions out to all peers instantly. This causes high overhead because it makes >80% of INVs size 1. Doing so harms privacy, because it limits the amount of source obscurity a transaction can receive. These randomized broadcasts also disobeyed transaction dependencies and required use of the orphan pool. Because the orphan pool is so small this leads to poor propagation for dependent transactions. When the bypass wasn't in effect, transactions were sent in the order they were received. This avoided creating orphans but undermines privacy fairly significantly. This commit: Eliminates the bypass. The bypass is replaced by halving the average delay for outbound peers. Sorts candidate transactions for INV by their topological depth then by their feerate (then hash); removing the information leakage and providing priority service to higher fee transactions. Limits the amount of transactions sent in a single INV to 7tx/sec (and twice that for outbound); this limits the harm of low fee transaction floods, gives faster relay service to higher fee transactions. The 7 sounds lower than it really is because received advertisements need not be sent, and because the aggregate rate is multipled by the number of peers.
2016-04-19Pass CChainParams to DisconnectTip()face
2016-04-15Break circular dependency main ↔ txdbWladimir J. van der Laan
Break the circular dependency between main and txdb by: - Moving `CBlockFileInfo` from `main.h` to `chain.h`. I think this makes sense, as the other block-file stuff is there too. - Moving `CDiskTxPos` from `main.h` to `txdb.h`. This type seems specific to txdb. - Pass a functor `insertBlockIndex` to `LoadBlockIndexGuts`. This leaves it up to the caller how to insert block indices.
2016-04-07Reduce block timeout to 10 minutesWladimir J. van der Laan
Now that #7804 fixed the timeout handling, reduce the block timeout from 20 minutes to 10 minutes. 20 minutes is overkill.
2016-04-07Track block download times per individual blockPieter Wuille
Currently, we're keeping a timeout for each requested block, starting from when it is requested, with a correction factor for the number of blocks in the queue. That's unnecessarily complicated and inaccurate. As peers process block requests in order, we can make the timeout for each block start counting only when all previous ones have been received, and have a correction based on the number of peers, rather than the total number of blocks.
2016-04-03[doc] Fix doxygen comments for membersMarcoFalke
2016-03-21Implement "feefilter" P2P message.Alex Morcos
The "feefilter" p2p message is used to inform other nodes of your mempool min fee which is the feerate that any new transaction must meet to be accepted to your mempool. This will allow them to filter invs to you according to this feerate.
2016-03-21Merge #7692: Remove p2p alert systemWladimir J. van der Laan
cfd519e Add release note documentation (BtcDrak) 6601ce5 protocol.h/cpp: Removes NetMsgType::ALERT (Thomas Kerin) ad72104 Formatting (BtcDrak) 1b77471 Remove alert keys (BtcDrak) 01fdfef Remove `-alerts` option (BtcDrak) 9206634 Update alert notification and GUI (BtcDrak) bbb9d1d Remove p2p alert handling (BtcDrak)
2016-03-21Merge #7708: De-neuter NODE_BLOOMWladimir J. van der Laan
c90036f Always disconnect old nodes which request filtered connections. (Patrick Strateman)
2016-03-18Always disconnect old nodes which request filtered connections.Patrick Strateman
2016-03-18Remove `-alerts` optionBtcDrak
2016-03-18Merge #7575: Minimal BIP9 implementationWladimir J. van der Laan
8c74ced RPC test for BIP9 warning logic (Suhas Daftuar) 7870deb Test versionbits deployments (Suhas Daftuar) 532cbb2 Add testing of ComputeBlockVersion (Suhas Daftuar) d23f6c6 Softfork status report in RPC (Pieter Wuille) 732e774 Versionbits tests (Pieter Wuille) 6851107 BIP9 Implementation (Pieter Wuille)
2016-03-16Add LockPointsAlex Morcos
Obtain LockPoints to store in CTxMemPoolEntry and during a reorg, evaluate whether they are still valid and if not, recalculate them.
2016-03-15Softfork status report in RPCPieter Wuille
2016-03-15BIP9 ImplementationPieter Wuille
Inspired by former implementations by Eric Lombrozo and Rusty Russell, and based on code by Jorge Timon.
2016-02-16Merge #7509: Common argument defaults for NODE_BLOOM stuff and -walletWladimir J. van der Laan
1fb91b3 Common argument defaults for NODE_BLOOM stuff and -wallet (Luke Dashjr)
2016-02-12Merge #7184: Implement SequenceLocks functions for BIP 68Wladimir J. van der Laan
b043c4b fix sdaftuar's nits again (Alex Morcos) a51c79b Bug fix to RPC test (Alex Morcos) da6ad5f Add RPC test exercising BIP68 (mempool only) (Suhas Daftuar) c6c2f0f Implement SequenceLocks functions (Alex Morcos)
2016-02-11fix sdaftuar's nits againAlex Morcos
it boggles the mind why these nits can't be delivered on a more timely basis
2016-02-11Common argument defaults for NODE_BLOOM stuff and -walletLuke Dashjr
2016-02-10Implement SequenceLocks functionsAlex Morcos
SequenceLocks functions are used to evaluate sequence lock times or heights per BIP 68. The majority of this code is copied from maaku in #6312 Further credit: btcdrak, sipa, NicolasDorier
2016-02-04Merge #7070: Move maxTxFee out of mempoolWladimir J. van der Laan
fad6244 ATMP: make nAbsurdFee const (MarcoFalke) fa762d0 [wallet.h] Remove main.h include (MarcoFalke) fa79db2 Move maxTxFee out of mempool (MarcoFalke)
2016-02-03Merge #7444: Improve block validity/ConnectBlock() commentsWladimir J. van der Laan
2f19905 Improve block validity/ConnectBlock() comments (Peter Todd)
2016-02-03Merge #7431: Rename permitrbf to mempoolreplacement and provide minimal ↵Wladimir J. van der Laan
string-list forward compatibility (needs 0.12 backport) b922fbe Rename replacebyfee=opt-in to mempoolreplacement=fee (Luke Dashjr) 3b66e54 Simplify check for replacebyfee=opt-in (Luke Dashjr) d65dee9 Accept replacebyfee=opt-in for turning on opt-in RBF (Luke Dashjr) 77b55a0 Rename permitrbf to replacebyfee (Luke Dashjr)
2016-02-02Move maxTxFee out of mempoolMarcoFalke
Also, remove default values in CMerkleTx::AcceptToMemoryPool()
2016-02-02Merge #7084: mempool: Replace maxFeeRate of 10000*minRelayTxFee with maxTxFeeWladimir J. van der Laan
fa1193e [doxygen] Actually display comment (MarcoFalke) fa331db mempool: Replace maxFeeRate of 10000*minRelayTxFee with maxTxFee (MarcoFalke)
2016-02-02[doxygen] Actually display commentMarcoFalke
2016-02-01Rename replacebyfee=opt-in to mempoolreplacement=feeLuke Dashjr
2016-01-31Improve block validity/ConnectBlock() commentsPeter Todd
Previously didn't make clear that the ContextualCheckBlock* functions meant the block headers as context - not the UTXO set itself - and that ConnectBlock() also did UTXO-related validity checks (in the future we may split that functionality into a separate UTXO-specific contextual check block function). Also, reordered to put validity checks first for better readability.
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