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98 Commits

Author SHA1 Message Date
Luke Dashjr
78b9d2de40 Merge branch '0.4.x' into 0.5.0.x 
Conflicts:
	contrib/Bitcoin.app/Contents/Info.plist
	doc/README
	doc/README_windows.txt
	share/setup.nsi
	src/serialize.h
 2012-03-16 16:44:00 -04:00
Gavin Andresen
27960a36de Fix issue #848 : broken mining on testnet 2012-03-16 16:40:38 -04:00
Gavin Andresen
91aadbdacf Fix issue #848 : broken mining on testnet 2012-03-16 16:39:52 -04:00
Gavin Andresen
4986c35d74 Code cleanup: use ECDSA_size() instead of fixed 10,000 byte sig buffer, and explicity init static var 2012-03-13 19:08:42 -04:00
Luke Dashjr
7013cc3d97 Merge branch '0.4.x' into 0.5.0.x 2012-03-03 13:59:19 -05:00
Luke Dashjr
e9865a41d6 Merge remote branch 'sipa/nooverwritetx_v0.4.0' into 0.4.x 2012-03-03 12:59:09 -05:00
Pieter Wuille
d7962747c4 Do not allow overwriting unspent transactions (BIP 30) 
Introduce the following network rule:
 * a block is not valid if it contains a transaction whose hash
   already exists in the block chain, unless all that transaction's
   outputs were already spent before said block.

Warning: this is effectively a network rule change, with potential
risk for forking the block chain. Leaving this unfixed carries the
same risk however, for attackers that can cause a reorganisation
in part of the network.

Thanks to Russell O'Connor and Ben Reeves.
 2012-03-03 18:51:18 +01:00
Gavin Andresen
3108aed0f2 DoS fix for mapOrphanTransactions 2012-03-02 13:04:39 -05:00
Pieter Wuille
1be5779124 ProcessBlock is sometimes called with pfrom==NULL 2012-02-27 12:58:53 -05:00
Luke Dashjr
4bbd72cca1 Update copyrights to 2012 for files modified this year 2012-02-07 22:43:39 -05:00
Luke Dashjr
4664aae3fe Update copyrights to 2012 for files modified this year 2012-02-07 22:30:50 -05:00
Luke Dashjr
882e00e215 Merge branch '0.4.x' into 0.5.0.x 
Conflicts:
	src/main.cpp
 2012-02-02 20:17:41 -05:00
Gavin Andresen
c11e2b8679 Only store transactions with missing inputs in the orphan pool. 
All previous versions of bitcoin could store some types of
invalid transactions in the orphan-transaction list.
 2012-02-02 20:03:33 -05:00
Gavin Andresen
edb563e8a5 Testnet difficulty calculation changes, to take effect Feb 15 2012 
Allow mining of min-difficulty blocks if 20 minutes have gone by without mining a regular-difficulty block.
Normal rules apply every 2016 blocks, though, so there may be a very-slow-to-confirm block at the difficulty-adjustment blocks.
 2012-02-02 17:44:04 -05:00
Luke Dashjr
3b8051864b Be more conservative: check all transactions in blocks after last checkpoint. 2011-12-25 09:26:12 -05:00
Luke Dashjr
ab4b52a239 Merge branch '0.4.x' into 0.5.0.x 2011-12-23 10:08:53 -05:00
Luke Dashjr
027d149352 Bugfix: fForRelay should be false when deciding required fee to include in blocks 
During the rushed transition from 0.01 BTC to 0.0005 BTC fees, we took the
approach of dropping the relay and block-inclusion fee to 0.0005 BTC
immediately, and only delayed adjusting the sending fee for the next release.
Afterward, the relay fee was lowered to 0.0001 BTC to avoid having the same
problem in the future. However, the block inclusion code was left setting
fForRelay to true! This fixes that, so the lower 0.0001 BTC allowance is (as
intended) only permitted for real relaying.
 2011-12-20 17:05:04 -05:00
Gavin Andresen
5d901f1ba0 Orphan block fill-up-memory attack prevention 2011-12-01 23:20:32 -05:00
Gavin Andresen
0e6425da4a Moved checkpoints out of main, to prep for using them to help prevent DoS attacks 2011-12-01 23:12:47 -05:00
Gavin Andresen
f8c3eb9568 Orphan block fill-up-memory attack prevention 2011-12-01 15:48:27 -05:00
Gavin Andresen
d27be1f557 Moved checkpoints out of main, to prep for using them to help prevent DoS attacks 2011-12-01 15:48:20 -05:00
Pieter Wuille
d825e6a31b Some extra comments 2011-11-07 00:11:34 +01:00
Gavin Andresen
32ebde4612 Merge pull request #564 from luke-jr/optimize_remove_CheckWork_delay 
Remove 2 second sleep from CheckWork
 2011-10-06 07:54:50 -07:00
Gavin Andresen
b898c8fce6 Merge branch 'no-cryptopp' of https://github.com/tcatm/bitcoin 2011-10-05 10:38:10 -04:00
David Joel Schwartz
514b18722a Remove 2 second sleep from CheckWork 2011-10-04 00:04:43 -04:00
Forrest Voight
074d584a04 Added RPC call 'getmemorypool' that provides everything needed to construct a block with a custom generation transaction and submit a solution 
getmemorypool [data]
If [data] is not specified, returns data needed to construct a block to work on:
  "version" : block version
  "previousblockhash" : hash of current highest block
  "transactions" : contents of non-coinbase transactions that should be included in the next block
  "coinbasevalue" : maximum allowable input to coinbase transaction, including the generation award and transaction fees
  "time" : timestamp appropriate for next block
  "bits" : compressed target of next block
If [data] is specified, tries to solve the block and returns true if it was successful.
 2011-10-01 14:42:54 -04:00
Nils Schneider
6ccff2cbde remove cryptopp dependency, add simple unittest for SHA256Transform() 2011-09-30 20:00:22 +02:00
Wladimir J. van der Laan
002a4dcad0 Merge branch 'master' of https://github.com/bitcoin/bitcoin 
Conflicts:
	.gitignore (used upstream version)
	bitcoin-qt.pro
 2011-09-28 21:52:32 +02:00
Wladimir J. van der Laan
a8b95ce6ed use median filter for peer-reported reported number of blocks 
- fixes problem that one misconfigured or malicious node can mess up progress bar
- implementation in src/util.h
- testcase in src/test/util_tests.cpp
 2011-09-28 21:35:58 +02:00
Gavin Andresen
a8c108bca1 Remove DoS penalty for SigOpCount or immature transactions 2011-09-27 11:19:57 -04:00
Gavin Andresen
b14bd4df58 Skip verifying transaction signatures during initial block-chain download 2011-09-26 09:20:22 -04:00
Gavin Andresen
17e2c24645 Merge pull request #517 from gavinandresen/DoSprevention 
Denial-of-service prevention
 2011-09-26 06:06:16 -07:00
Gavin Andresen
f7f2a36925 Merge pull request #521 from laanwj/qt 
Qt GUI
 2011-09-26 06:05:11 -07:00
Wladimir J. van der Laan
0961c2fc0d Merge branch 'master' of https://github.com/bitcoin/bitcoin 2011-09-23 13:42:04 +02:00
Gavin Andresen
806704c237 More denial-of-service misbehavior detection: version/addr/inv/getdata messages 2011-09-21 12:50:13 -04:00
Gavin Andresen
3e52aaf212 Transaction/Block denial-of-service detection/response 2011-09-21 12:50:12 -04:00
Nils Schneider
59090133c0 log low-level network messages only when fDebug is set 2011-09-17 18:29:41 +02:00
Wladimir J. van der Laan
5dd7318db7 Merge branch 'master' of https://github.com/bitcoin/bitcoin 2011-09-16 06:55:47 +02:00
Wladimir J. van der Laan
d33cc2b5e3 clarify function signature (GetNumBlocksOfPeers) and use number of 'frozen' blocks as initial value for number of peer blocks 2011-09-11 10:49:30 +02:00
Wladimir J. van der Laan
a0d2f9a12d Merge branch 'master' of https://github.com/bitcoin/bitcoin 
Conflicts:
	.gitignore
 2011-09-07 18:57:11 +02:00
Gavin Andresen
5a3dea451d Merge branch 'unique_coinbase' of git://gitorious.org/~Luke-Jr/bitcoin/luke-jr-bitcoin into unique_coinbase 2011-09-07 10:51:57 -04:00
Luke Dashjr
83f4cd156e Bugfix: Use timestamp in coinbase rather than "bits", needed to ensure coinbase txn is unique even if address is the same 2011-09-06 16:43:40 -04:00
Luke Dashjr
b760e25458 Merge branch 'getwork_dedupe' into unique_coinbase 2011-09-06 16:43:32 -04:00
Gavin Andresen
e077cce617 Optimize database writes for transactions with lots of TxIns. 
Patch from ArtForz, who discovered the problem.
 2011-09-05 14:33:07 -04:00
Wladimir J. van der Laan
0a70a3f4d8 Merge branch 'master' of https://github.com/bitcoin/bitcoin 2011-09-03 09:09:34 +02:00
Gavin Andresen
ec74e8a443 Versions 0.3.20 THROUGH 0.3.23 have trouble with blockchain downloads; avoid them 2011-09-02 12:56:10 -04:00
Wladimir J. van der Laan
c5aa1b139a update to work with new lock system, add protocol.* to build system 2011-09-02 18:02:22 +02:00
Gavin Andresen
fb45259967 Do not try to download blockchain from 0.3.23 nodes 2011-09-02 12:00:01 -04:00
Wladimir J. van der Laan
7a15d4ff67 Merge branch 'master' of https://github.com/bitcoin/bitcoin 
Conflicts:
	src/main.cpp
 2011-09-02 17:35:30 +02:00
Gavin Andresen
783c636c73 Merge pull request #467 from gavinandresen/keypoolzero 
Logic running with -keypool=0 was wrong (empty keys were being returned).
 2011-09-01 12:01:29 -07:00