Commit graph

1424 commits

Author SHA1 Message Date
Suhas Daftuar
1de2a46632 Ignore GETBLOCKTXN requests for unknown blocks
Don't disconnect peers, or else we leak information that could be
used for fingerprinting.
2016-07-26 16:50:48 -04:00
Wladimir J. van der Laan
4b1a4d8810
Merge #8381: Make witness v0 outputs non-standard
c59c434 qa: Add test for standardness of segwit v0 outputs (Suhas Daftuar)
1ffaff2 Make witness v0 outputs non-standard before segwit activation (Johnson Lau)
2016-07-26 14:24:11 +02:00
Wladimir J. van der Laan
618c9dd8c6
Merge #8365: Treat high-sigop transactions as larger rather than rejecting them
ab942c1 Treat high-sigop transactions as larger rather than rejecting them (Pieter Wuille)
2016-07-26 11:27:30 +02:00
Johnson Lau
1ffaff2f74 Make witness v0 outputs non-standard before segwit activation 2016-07-22 06:35:07 +00:00
Wladimir J. van der Laan
381917f610
Merge #8347: Trivial: Make CBlockIndex param const in ContextualCheckBlockHeader and ContextualCheckBlock
6f3d616 Trivial: Make CBlockIndex param const in ContextualCheckBlockHeader and ContextualCheckBlock (Jorge Timón)
2016-07-21 14:31:40 +02:00
NicolasDorier
7821889bce Consensus: Remove calls to error() from ContextualCheckBlock 2016-07-21 20:57:08 +09:00
Wladimir J. van der Laan
6f4092da80
Merge #8342: Consensus: Trivial transform BOOST_FOREACH into for loop
a3e1984 Consensus: Trivial transform BOOST_FOREACH into for loop (NicolasDorier)
2016-07-21 11:56:33 +02:00
Pieter Wuille
ab942c15bd Treat high-sigop transactions as larger rather than rejecting them 2016-07-19 12:31:49 +02:00
Suhas Daftuar
2c06bae39e Rename "block cost" to "block weight" 2016-07-18 13:28:26 -04:00
Wladimir J. van der Laan
37303934fe
Merge #8305: Improve handling of unconnecting headers
e91cf4b Add test for handling of unconnecting headers (Suhas Daftuar)
96fa953 Improve handling of unconnecting headers (Suhas Daftuar)
2016-07-18 07:46:12 +02:00
Jorge Timón
6f3d616dc8 Trivial: Make CBlockIndex param const in ContextualCheckBlockHeader and ContextualCheckBlock 2016-07-17 01:43:15 +02:00
NicolasDorier
a3e1984651 Consensus: Trivial transform BOOST_FOREACH into for loop 2016-07-16 11:08:52 +09:00
Wladimir J. van der Laan
ca40ef6029
Merge #8312: Fix mempool DoS vulnerability from malleated transactions
46c9620 Test that unnecessary witnesses can't be used for mempool DoS (Suhas Daftuar)
bb66a11 Fix DoS vulnerability in mempool acceptance (Suhas Daftuar)
2016-07-14 08:21:13 +02:00
Wladimir J. van der Laan
1bc9c8085f
Merge #8271: [bugfix] Do not send witnesses in cmpctblock
252675e Do not send witnesses in cmpctblock (Pieter Wuille)
2016-07-14 08:17:22 +02:00
Suhas Daftuar
96fa95361f Improve handling of unconnecting headers
When processing a headers message that looks like a block announcement,
send peer a getheaders if the headers message won't connect.

Apply DoS points after too many consecutive unconnecting headers messages.
2016-07-12 13:12:40 -04:00
Suhas Daftuar
bb66a11396 Fix DoS vulnerability in mempool acceptance
Moves the IsStandard check to happen after the premature-witness check,
so that adding a witness to a transaction can't prevent mempool acceptance.

Note that this doesn't address the broader category of potential mempool DoS
issues that affect transactions after segwit activation.
2016-07-07 15:49:26 -04:00
Wladimir J. van der Laan
042c323922
Merge #8275: Remove bad chain alert partition check
ab8be98 Remove bad chain alert partition check (BtcDrak)
2016-07-06 07:35:54 +02:00
Gregory Maxwell
4fbdc4365b Revert "net: Avoid duplicate getheaders requests." PR #8054
This reverts commit f93c2a1b7e.

This can cause synchronization to get stuck.
2016-07-05 20:45:14 +00:00
Pieter Wuille
252675efc6 Do not send witnesses in cmpctblock 2016-06-26 20:19:00 +02:00
Alex Morcos
4f7ff00497 [qa] Add rpc test for segwit
Amended by Pieter Wuille to use multisig 1-of-1 for P2WSH tests, and BIP9
based switchover logic.

Fixes and py3 conversion by Marco Falke.
2016-06-22 15:43:01 +02:00
Pieter Wuille
af87a67eff Do not use compact blocks when segwit is enabled 2016-06-22 15:43:00 +02:00
Pieter Wuille
6032f6930a Add rewind logic to deal with post-fork software updates
Includes logic for dealing with pruning by Suhas Daftuar.
2016-06-22 15:43:00 +02:00
Pieter Wuille
2b1f6f9ccf BIP141: Other consensus critical limits, and BIP145
Includes changes by Suhas Daftuar, Luke-jr, and mruddy.
2016-06-22 15:43:00 +02:00
Pieter Wuille
0ef1dd3e11 Refactor script validation to observe amounts
This is a preparation for BIP143 support.
2016-06-22 15:43:00 +02:00
Pieter Wuille
b8a97498df BIP144: Handshake and relay (receiver side)
Service bit logic by Nicolas Dorier.

Only download blocks from witness peers after fork.
2016-06-22 15:42:59 +02:00
Pieter Wuille
8b49040854 BIP141: Commitment structure and deployment
Includes a fix by Suhas Daftuar and LongShao007
2016-06-22 15:42:59 +02:00
Pieter Wuille
449f9b8deb BIP141: Witness program 2016-06-22 15:42:59 +02:00
Pieter Wuille
7030d9eb47 BIP144: Serialization, hashes, relay (sender side)
Contains refactorings by Eric Lombrozo.
Contains fixup by Nicolas Dorier.
Contains cleanup of CInv::GetCommand by Alex Morcos
2016-06-22 15:42:59 +02:00
Wladimir J. van der Laan
e9d76a161d
Merge #8068: Compact Blocks
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)
2016-06-22 14:30:38 +02:00
Matt Corallo
48efec82f3 Fix some minor compact block issues that came up in review 2016-06-21 16:09:46 -07:00
Wladimir J. van der Laan
94ab58b5cc
Merge #8179: Evict orphans which are included or precluded by accepted blocks.
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)
2016-06-20 14:53:33 +02:00
Matt Corallo
2f34a2e476 Get our "best three" peers to announce blocks using cmpctblocks 2016-06-19 23:06:55 -07:00
Matt Corallo
d25cd3ec4e Add receiver-side protocol implementation for CMPCTBLOCK stuff 2016-06-19 23:06:55 -07:00
Matt Corallo
9c837d5468 Add sender-side protocol implementation for CMPCTBLOCK stuff 2016-06-19 01:34:58 -07:00
Matt Corallo
cbda71cf04 Move context-required checks from CheckBlockHeader to Contextual... 2016-06-19 01:34:57 -07:00
Matt Corallo
7c29ec9449 If AcceptBlockHeader returns true, pindex will be set.
Assert this instead of checking (and then dref'ing later anyway)
to make sure no one thinks they can change that postcondition of
AcceptBlockHeader..
2016-06-19 01:34:57 -07:00
Wladimir J. van der Laan
e4bb4a85a5
Merge #8084: Add recently accepted blocks and txn to AttemptToEvictConnection.
6ee7f05 Allow disconnecting a netgroup with only one member in eviction. (Gregory Maxwell)
5d0ca81 Add recently accepted blocks and txn to AttemptToEvictConnection. (Gregory Maxwell)
2016-06-16 11:03:52 +02:00
Gregory Maxwell
5d0ca81f74 Add recently accepted blocks and txn to AttemptToEvictConnection.
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.
2016-06-15 20:19:07 +00:00
Gregory Maxwell
54326a6808 Increase maximum orphan size to 100,000 bytes.
Although this increases node memory usage in the worst case by perhaps
 30MB, the current behavior causes severe issues with dependent tx relay.
2016-06-15 09:56:42 +00:00
Gregory Maxwell
8c99d1b525 Treat orphans as implicit inv for parents, discard when parents rejected.
An orphan whos parents were rejected is never going to connect, so there
 is little utility in keeping it.

Orphans also helpfully tell us what we're missing, so go ahead and treat
 it as INVed.
2016-06-15 09:56:37 +00:00
Gregory Maxwell
11cc143895 Adds an expiration time for orphan tx.
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.
2016-06-15 09:56:28 +00:00
BtcDrak
ab8be98fdb Remove bad chain alert partition check
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.
2016-06-14 12:26:59 +01:00
Pieter Wuille
ecd7fd37c8 Introduce REQUIRED_SERVICES constant 2016-06-13 17:40:16 +02:00
Pieter Wuille
ee06e04369 Introduce enum ServiceFlags for service flags 2016-06-13 17:40:16 +02:00
Pieter Wuille
5e7ab16d29 Only store and connect to NODE_NETWORK nodes 2016-06-13 17:40:16 +02:00
Pieter Wuille
fc83f18153 Verify that outbound connections have expected services 2016-06-13 17:40:16 +02:00
Pieter Wuille
3764dec36c Keep addrman's nService bits consistent with outbound observations 2016-06-13 17:40:16 +02:00
Wladimir J. van der Laan
44c1b1c9bb
Merge #8141: Continuing port of java comparison tool
ff2dcf2 Tests: Edit bloated varint test and add option for 'barely expensive' tests (mrbandrews)
12c5a16 Catch exceptions from non-canonical encoding and print only to log (mrbandrews)
291f8aa Continuing port of java comptool (mrbandrews)
8c9e681 Tests: Rework blockstore to avoid re-serialization. (mrbandrews)
2016-06-13 11:37:37 +02:00
Gregory Maxwell
db0ffe80a0 This eliminates the primary leak that causes the orphan map to
always grow to its maximum size.

This does not go so far as to attempt to connect orphans made
 connectable by a new block.

Keeping the orphan map less full helps improve the reliability
 of relaying chains of transactions.
2016-06-10 20:42:03 +00:00
Pieter Wuille
1b0bcc5f95 Track orphan by prev COutPoint rather than prev hash 2016-06-10 19:51:20 +00:00