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2018-03-07[wallet] Construct CWalletTx objects in CommitTransactionRussell Yanofsky
Construct CWalletTx objects in CWallet::CommitTransaction, instead of having callers do it. This ensures CWalletTx objects are constructed in a uniform way and all fields are set. This also makes it possible to avoid confusing and wasteful CWalletTx copies in https://github.com/bitcoin/bitcoin/pull/9381 There is no change in behavior.
2018-03-07Merge #9598: Improve readability by removing redundant casts to same type ↵Wladimir J. van der Laan
(on all platforms) 06edc23f7 Improve readability by removing redundant casts to same type (on all platforms) (practicalswift) Pull request description: Same binaries check under Linux: ``` $ ../bitcoin-maintainer-tools/build-for-compare.py 874f13821f4193bd037cd37d005ee76b5a849398 82274c02ed2d82537dc55f008a29edb1bc09bbc4 --executables "src/bitcoind,src/bitcoin-cli,src/bitcoin-tx" $ sha256sum /tmp/compare/*.stripped 1fe1a8827474f7f24475ce3dc851e7ac658d4ed0ae38d11e67f5a810671eaa15 /tmp/compare/bitcoin-cli.82274c02ed2d82537dc55f008a29edb1bc09bbc4.stripped 1fe1a8827474f7f24475ce3dc851e7ac658d4ed0ae38d11e67f5a810671eaa15 /tmp/compare/bitcoin-cli.874f13821f4193bd037cd37d005ee76b5a849398.stripped 342c2ed0e60b60990a58cbf5845b256a4f9e3baff9db074baba5e34a620a60ea /tmp/compare/bitcoind.82274c02ed2d82537dc55f008a29edb1bc09bbc4.stripped 342c2ed0e60b60990a58cbf5845b256a4f9e3baff9db074baba5e34a620a60ea /tmp/compare/bitcoind.874f13821f4193bd037cd37d005ee76b5a849398.stripped e4b2a80b2361d5cefd67a47eeb9298b8b712c26c7779d979348be8b2c7e3ec93 /tmp/compare/bitcoin-tx.82274c02ed2d82537dc55f008a29edb1bc09bbc4.stripped e4b2a80b2361d5cefd67a47eeb9298b8b712c26c7779d979348be8b2c7e3ec93 /tmp/compare/bitcoin-tx.874f13821f4193bd037cd37d005ee76b5a849398.stripped $ git diff -W --word-diff /tmp/compare/874f13821f4193bd037cd37d005ee76b5a849398 /tmp/compare/82274c02ed2d82537dc55f008a29edb1bc09bbc4 $ ``` Tree-SHA512: 13ca5862fbb03771682b04a7523e581a7fe62e73620fa0e141cf1bc0a3b3f4e2e66bf14b46d1228e2b11b4960153545e7476f3295713a69b5cf5a28a7c2b358d
2018-03-07Merge #12626: Limit the number of IPs addrman learns from each DNS seederWladimir J. van der Laan
46e7f800b Limit the number of IPs we use from each DNS seeder (e0) Pull request description: A risk exists where a malicious DNS seeder eclipses a node by returning an enormous number of IP addresses. In this commit we mitigate this risk by limiting the number of IP addresses addrman learns to 256 per DNS seeder. As discussed with @theuni Tree-SHA512: 949e870765b1470200f2c650341d9e3308a973a7d1a6e557b944b0a2b8ccda49226fc8c4ff7d2a05e5854c4014ec0b67e37a3f2287556fe7dfa2048ede1f2e6f
2018-03-07Merge #11900: [script] simplify CheckMinimalPush checks, add safety assertWladimir J. van der Laan
0749808a7 CheckMinimalPush comments are prescriptive (Gregory Sanders) 176db6147 simplify CheckMinimalPush checks, add safety assert (Gregory Sanders) Pull request description: the two conditions could simply never be hit as `true`, as those opcodes have a push payload of size 0 in `data`. Added the assert for clarity for future readers(matching the gating in the interpreter) and safety for future use. This effects policy only. Tree-SHA512: f49028a1d5e907ef697b9bf5104c81ba8f6a331dbe5d60d8d8515ac17d2d6bfdc9dcc856a7e3dbd54814871b7d0695584d28da6553e2d9d7715430223f0b3690
2018-03-07Merge #11687: External wallet filesWladimir J. van der Laan
be8ab7d08 Create new wallet databases as directories rather than files (Russell Yanofsky) 26c06f24e Allow wallet files not in -walletdir directory (Russell Yanofsky) d8a99f65e Allow wallet files in multiple directories (Russell Yanofsky) Pull request description: This change consists of three commits: * The first commit is a pure refactoring that removes the restriction that two wallets can only be opened at the same time if they are contained in the same directory. * The second commit removes the restriction that `-wallet` filenames can only refer to files in the `-walletdir` directory. * The third commit makes second commit a little safer by changing bitcoin to create wallet databases as directories rather than files, so they can be safely backed up. All three commits should be straightforward: * The first commit adds around 20 lines of new code and then updates a bunch of function signatures (generally updating them to take plain fs::path parameters, instead of combinations of strings, fs::paths, and objects like CDBEnv and CWalletDBWrapper). * The second commit removes two `-wallet` filename checks and adds some test cases to the multiwallet unit test. * The third commit just changes the mapping from specified wallet paths to bdb environment & data paths. --- **Note:** For anybody looking at this PR for the first time, I think you can skip the comments before _20 Nov_ and start reading at https://github.com/bitcoin/bitcoin/pull/11687#issuecomment-345625565. Comments before _20 Nov_ were about an earlier version of the PR that didn't include the third commit, and then confusion from not seeing the first commit. Tree-SHA512: 00bbb120fe0df847cf57014f75f1f7f1f58b0b62fa0b3adab4560163ebdfe06ccdfff33b4231693f03c5dc23601cb41954a07bcea9a4919c8d42f7d62bcf6024
2018-03-07CheckMinimalPush comments are prescriptiveGregory Sanders
2018-03-07Merge #12620: Remove TransactionTableModel::TxIDRoleWladimir J. van der Laan
3b26b6af7 qt: Remove TransactionTableModel::TxIDRole (João Barbosa) Pull request description: The role `TxIDRole` is a duplicate of `TxHashRole`. This change favours `TxHashRole`. Tree-SHA512: ad35933eae1cb6b242b25b8940d662c2c79c766732d76fdd410c80230ec084969294a8e5a126794707992a566076ef4452b592050f7af6c4fa7742891090803d
2018-03-07Merge #11630: Simplify Base32 and Base64 conversionsWladimir J. van der Laan
b3ea8ccb7 Simplify Base32 and Base64 conversions (Pieter Wuille) 3296a3bb7 Generalize ConvertBits (Pieter Wuille) Pull request description: Generalize `ConvertBits` a bit to also be usable for the existing Base32 and Base64 convertions (rather than just for Bech32). Tree-SHA512: 3858247f9b14ca4766c08ea040a09b1d6d70caaccc75c2436a54102d6d526f499ec07f5bdfcbbe16cbde5aae521cd16e9aa693e688a97e6c5e74b8e58ee55a13
2018-03-07Merge #9991: listreceivedbyaddress Filter AddressWladimir J. van der Laan
f08761371 Add tests of listreceivedbyaddress address filtering (Jeremy Rubin) 8ee08120d Add address filtering to listreceivedbyaddress (Jeremy Rubin) Pull request description: Supersede https://github.com/bitcoin/bitcoin/pull/9503 created by @JeremyRubin , I will maintain it. Tree-SHA512: 2accaed493b7e1c2eb5cb5270180f100f8c718b6585b9574f294191c318dc622a79e42ac185300f291f82d3b2a6f1c00850b6b17e4ff2dbab94d71df695acbfe
2018-03-07Simplify Base32 and Base64 conversionsPieter Wuille
2018-03-07Merge #12204: Fix overly eager BIP30 bypassWladimir J. van der Laan
5b8b38775 Fix overly eager BIP30 bypass (Alex Morcos) Pull request description: In #6931 we introduced a possible consensus breaking change by misunderstanding how completely BIP 34 obviated the need for BIP 30. Unfixed, this could break consensus after block height about 1.9M. Explained in code comment. h/t @sdaftuar Tree-SHA512: 8f798c3f203432fd4ae1c1c08bd6967b4a5ec2064ed5f6a7dcf3bff34ea830952838dd4ff70d70b5080cf4644f601e5526b60456c08f43789e4aae05621d9d6b
2018-03-07Add address filtering to listreceivedbyaddressJeremy Rubin
2018-03-07qt: Remove TransactionTableModel::TxIDRoleJoão Barbosa
2018-03-06Generalize ConvertBitsPieter Wuille
2018-03-06Limit the number of IPs we use from each DNS seedere0
A risk exists where a malicious DNS seeder eclipses a node by returning an enormous number of IP addresses. In this commit we mitigate this risk by limiting the number of IP addresses addrman learns to 256 per DNS seeder.
2018-03-07Merge #11372: Address encoding cleanupWladimir J. van der Laan
92f1f8b31 Split off key_io_tests from base58_tests (Pieter Wuille) 119b0f85e Split key_io (address/key encodings) off from base58 (Pieter Wuille) ebfe217b1 Stop using CBase58Data for ext keys (Pieter Wuille) 32e69fa0d Replace CBitcoinSecret with {Encode,Decode}Secret (Pieter Wuille) Pull request description: This PR contains some of the changes left as TODO in #11167 (and built on top of that PR). They are not intended for backporting. This removes the `CBase58`, `CBitcoinSecret`, `CBitcoinExtKey`, and `CBitcoinExtPubKey` classes, in favor of simple `Encode`/`Decode` functions. Furthermore, all Bitcoin-specific logic (addresses, WIF, BIP32) is moved to `key_io.{h,cpp}`, leaving `base58.{h,cpp}` as a pure utility that implements the base58 encoding/decoding logic. Tree-SHA512: a5962c0ed27ad53cbe00f22af432cf11aa530e3efc9798e25c004bc9ed1b5673db5df3956e398ee2c085e3a136ac8da69fe7a7d97a05fb2eb3be0b60d0479655
2018-03-06Merge #12600: Add a test for large tx output scripts with segwit input.Wladimir J. van der Laan
5f8cc0df1 Add a test for large tx output scripts with segwit input. (Richard Kiss) Pull request description: This test failed in pycoin but passed in bitcoin, so I thought I'd share it. Tree-SHA512: 95dff4e03afea4d93ff5e99aa06004446c3df022c2e8a191cac8981107135a5ac2bd3ba1c3a9c4eda9f8f63f584cc1700b7ef57ee6ec2c66a72c699b51bdb61a
2018-03-06Merge #12432: [qt] send: Clear All also resets coin control optionsWladimir J. van der Laan
f506c0a7f [qt] send: Clear All also resets coin control options (Sjors Provoost) Pull request description: This change makes it so that a custom change address and manual input selection are removed if the user clicks Clear All in the send screen. Tree-SHA512: 78746043a74c9c26ef476eb0df7ce95411683749d9f6b2747222eaac751e241ea7d4d7ce9e4e69ed0b19fa76754d8584e5bef5bba1ad6598f8e39c784b4264d2
2018-03-06Merge #12622: net: Correct addrman loggingWladimir J. van der Laan
b4db76c55 net: Correct addrman logging (Wladimir J. van der Laan) Pull request description: These were introduced in #9037. Found by @theuni (https://github.com/bitcoin/bitcoin/pull/9037#pullrequestreview-101704656). Tree-SHA512: 9b5153da8a8e5d4ddf9513a5c453f9609cffd4df2924fd48c7b36c1b1055748c7077d4fc0e70be62ca36af87df7f621a744bb374a234baba271ce4982a240825
2018-03-06Merge #12479: RPC: Add child transactions to getrawmempool verbose outputWladimir J. van der Laan
1dfb4e7d7 [Tests] Check output of parent/child tx list from getrawmempool, getmempooldescendants, getmempoolancestors, and REST interface (Conor Scott) fc44cb108 [RPC] Add list of child transactions to verbose output of getrawmempool (Conor Scott) Pull request description: `bitcoin-cli getrawmempool true` only lists a transaction's parents in the `depends` field. This change adds a `spentby` field to the json response, which lists the transaction's children in the mempool. Currently the only way to find child transactions is to use `getrawmempool` or make another call to `getmempooldescendants` and search the response for transactions that list the parent_txid in the `depends` list, which is inefficient. This change allows direct lookup of children. Example Output ``` "9a9b5733c0d89f207908cfa3fe17809bee71f629aa095c9f8754524e29e98ba4": { ...other geterawmempool data... "wtxid": "9a9b5733c0d89f207908cfa3fe17809bee71f629aa095c9f8754524e29e98ba4", "depends": [ "bdd92851d5766a42aeb62af667bb422a116cab4e032bba5e3dd6efe5b4b40aa0" ], "spentby": [ "dc5d3ec388a9121421208738a041ac30a22163bc2e17758f2275b6c51a15ba7b" ] }, ``` Tree-SHA512: 83da7d421c9799a40ef65af3b7fdb586d6d87385f3f2ede3afd2c311725444b858f9d91cc110422a0fa31905779934fee07211ca6fe6b746792b83692c94b3ce
2018-03-06Merge #12564: [arith_uint256] Avoid unnecessary this-copy using prefix operatorWladimir J. van der Laan
22b4aae02 [arith_uint256] Avoid unnecessary this-copy using prefix operator (Karl-Johan Alm) Pull request description: I noticed while profiling a related project that `operator-()` actually calls the `base_uint` constructor, which is because the postfix operator version of `operator++` (used in `operator-()`) creates a copy of `this` and returns it. Tree-SHA512: d9a2665caa3d93f064cdeaf1c6fada101b9943bb53d93ccac6d9a0edac20279d2e921349e30239039c71e0a9629e45c29ec9f10d8d7499e936cdba6cb7c3c3eb
2018-03-06net: Correct addrman loggingWladimir J. van der Laan
These were introduced in #9037. Found by @theuni.
2018-03-06Merge #12603: [docs] PeerLogicValidation interfaceWladimir J. van der Laan
b7cd08b71 Add documentation to PeerLogicValidation interface and related functions (James O'Beirne) Pull request description: Adds docs for PeerLogicValidation's public interface and two related functions. Tree-SHA512: b4c2f47e9baa9396d2b6faf3792e46b371c50cd91b9ac890f263f4d14eb24a71e7b40ceb4cbb41e254f5008eff357f417b842618e7ebece9039802ab2a5dd728
2018-03-06Merge #9037: net: Add test-before-evict discipline to addrmanWladimir J. van der Laan
e68172ed9 Add test-before-evict discipline to addrman (Ethan Heilman) Pull request description: This change implement countermeasures 3 (test-before-evict) suggested in our paper: ["Eclipse Attacks on Bitcoin’s Peer-to-Peer Network"](http://cs-people.bu.edu/heilman/eclipse/). # Design: A collision occurs when an address, addr1, is being moved to the tried table from the new table, but maps to a position in the tried table which already contains an address (addr2). The current behavior is that addr1 would evict addr2 from the tried table. This change ensures that during a collision, addr1 is not inserted into tried but instead inserted into a buffer (setTriedCollisions). The to-be-evicted address, addr2, is then tested by [a feeler connection](https://github.com/bitcoin/bitcoin/pull/8282). If addr2 is found to be online, we remove addr1 from the buffer and addr2 is not evicted, on the other hand if addr2 is found be offline it is replaced by addr1. An additional small advantage of this change is that, as no more than ten addresses can be in the test buffer at once, and addresses are only cleared one at a time from the test buffer (at 2 minute intervals), thus an attacker is forced to wait at least two minutes to insert a new address into tried after filling up the test buffer. This rate limits an attacker attempting to launch an eclipse attack. # Risk mitigation: - To prevent this functionality from being used as a DoS vector, we limit the number of addresses which are to be tested to ten. If we have more than ten addresses to test, we drop new addresses being added to tried if they would evict an address. Since the feeler thread only creates one new connection every 2 minutes the additional network overhead is limited. - An address in tried gains immunity from tests for 4 hours after it has been tested or successfully connected to. # Tests: This change includes additional addrman unittests which test this behavior. I ran an instance of this change with a much smaller tried table (2 buckets of 64 addresses) so that collisions were much more likely and observed evictions. ``` 2016-10-27 07:20:26 Swapping 208.12.64.252:8333 for 68.62.95.247:8333 in tried table 2016-10-27 07:20:26 Moving 208.12.64.252:8333 to tried ``` I documented tests we ran against similar earlier versions of this change in #6355. # Security Benefit This is was originally posted in PR #8282 see [this comment for full details](https://github.com/bitcoin/bitcoin/pull/8282#issuecomment-237255215). To determine the security benefit of these larger numbers of IPs in the tried table I modeled the attack presented in [Eclipse Attacks on Bitcoin’s Peer-to-Peer Network](https://eprint.iacr.org/2015/263). ![attackergraph40000-10-1000short-line](https://cloud.githubusercontent.com/assets/274814/17366828/372af458-595b-11e6-81e5-2c9f97282305.png) **Default node:** 595 attacker IPs for ~50% attack success. **Default node + test-before-evict:** 620 attacker IPs for ~50% attack success. **Feeler node:** 5540 attacker IPs for ~50% attack success. **Feeler node + test-before-evict:** 8600 attacker IPs for ~50% attack success. The node running feeler connections has 10 times as many online IP addresses in its tried table making an attack 10 times harder (i.e. requiring the an attacker require 10 times as many IP addresses in different /16s). Adding test-before-evict increases resistance of the node by an additional 3000 attacker IP addresses. Below I graph the attack over even greater attacker resources (i.e. more attacker controled IP addresses). Note that test-before-evict maintains some security far longer even against an attacker with 50,000 IPs. If this node had a larger tried table test-before-evict could greatly boost a nodes resistance to eclipse attacks. ![attacker graph long view](https://cloud.githubusercontent.com/assets/274814/17367108/96f46d64-595c-11e6-91cd-edba160598e7.png) Tree-SHA512: fdad4d26aadeaad9bcdc71929b3eb4e1f855b3ee3541fbfbe25dca8d7d0a1667815402db0cb4319db6bd3fcd32d67b5bbc0e12045c4252d62d6239b7d77c4395
2018-03-06Add documentation to PeerLogicValidation interface and related functionsJames O'Beirne
2018-03-06Merge #12617: gui: Show messages as text not htmlWladimir J. van der Laan
6fbc0986f gui: Show messages as text not html (Wladimir J. van der Laan) Pull request description: Currently, error messages (such as InitError) are displayed as-is, which means Qt does auto detection on the format. This means that it's possible to inject HTML from the command line though e.g. specifying a wallet name with HTML in it. This isn't a direct security risk because fetching content from internet is disabled (and as far as I know we never report strings received from the network this way). However, it can be confusing. So explicitly force the format as text. Tree-SHA512: 96c9196f20552544b862071bca61817ef03653019cc3548023d435f3a9c48b6cd501fab3246783cb0be68c8c7bb1b865913d92070a7c4e84e82c6577709f0934
2018-03-06Merge #12373: Build: Add build support for profiling.Wladimir J. van der Laan
cfaac2a60 Add build support for 'gprof' profiling. (murrayn) Pull request description: Support for profiling build: `./configure --enable-profiling` Tree-SHA512: ea983cfce385f1893bb4ab7f94ac141b7d620951dc430da3bbc92ae1357fb05521eac689216e66dc87040171a8a57e76dd7ad98036e12a2896cfe5ab544347f0
2018-03-06Merge #10271: Use std::thread::hardware_concurrency, instead of Boost, to ↵Wladimir J. van der Laan
determine available cores 937bf4335 Use std::thread::hardware_concurrency, instead of Boost, to determine available cores (fanquake) Pull request description: Following discussion on IRC about replacing Boost usage for detecting available system cores, I've opened this to collect some benchmarks + further discussion. The current method for detecting available cores was introduced in #6361. Recap of the IRC chat: ``` 21:14:08 fanquake: Since we seem to be giving Boost removal a good shot for 0.15, does anyone have suggestions for replacing GetNumCores? 21:14:26 fanquake: There is std::thread::hardware_concurrency(), but that seems to count virtual cores, which I don't think we want. 21:14:51 BlueMatt: fanquake: I doubt we'll do boost removal for 0.15 21:14:58 BlueMatt: shit like BOOST_FOREACH, sure 21:15:07 BlueMatt: but all of boost? doubtful, there are still things we need 21:16:36 fanquake: Yea sorry, not the whole lot, but we can remove a decent chunk. Just looking into what else needs to be done to replace some of the less involved Boost usage. 21:16:43 BlueMatt: fair 21:17:14 wumpus: yes, it makes sense to plan ahead a bit, without immediately doing it 21:18:12 wumpus: right, don't count virtual cores, that used to be the case but it makes no sense for our usage 21:19:15 wumpus: it'd create a swarm of threads overwhelming any machine with hyperthreading (+accompanying thread stack overhead), for script validation, and there was no gain at all for that 21:20:03 sipa: BlueMatt: don't worry, there is no hurry 21:59:10 morcos: wumpus: i don't think that is correct 21:59:24 morcos: suppose you have 4 cores (8 virtual cores) 21:59:24 wumpus: fanquake: indeed seems that std has no equivalent to physical_concurrency, on any standard. That's annoying as it is non-trivial to implement 21:59:35 morcos: i think running par=8 (if it let you) would be notably faster 21:59:59 morcos: jeremyrubin and i discussed this at length a while back... i think i commented about it on irc at the time 22:00:21 wumpus: morcos: I think the conclusion at the time was that it made no difference, but sure would make sense to benchmark 22:00:39 morcos: perhaps historical testing on the virtual vs actual cores was polluted by concurrency issues that have now improved 22:00:47 wumpus: I think there are not more ALUs, so there is not really a point in having more threads 22:01:40 wumpus: hyperthreads are basically just a stored register state right? 22:02:23 sipa: wumpus: yes but it helps the scheduler 22:02:27 wumpus: in which case the only speedup using "number of cores" threads would give you is, possibly, excluding other software from running on the cores on the same time 22:02:37 morcos: well this is where i get out of my depth 22:02:50 sipa: if one of the threads is waiting on a read from ram, the other can use the arithmetic unit for example 22:02:54 morcos: wumpus: i'm pretty sure though that the speed up is considerably more than what you might expect from that 22:02:59 wumpus: sipa: ok, I back down, I didn't want to argue this at all 22:03:35 morcos: the reason i haven't tested it myself, is the machine i usually use has 16 cores... so not easy due to remaining concurrency issues to get much more speedup 22:03:36 wumpus: I'm fine with restoring it to number of virtual threads if that's faster 22:03:54 morcos: we should have somene with 4 cores (and  actually test it though, i agree 22:03:58 sipa: i would expect (but we should benchmark...) that if 8 scriot validation threads instead of 4 on a quadcore hyperthreading is not faster, it's due to lock contention 22:04:20 morcos: sipa: yeah thats my point, i think lock contention isn't that bad with 8 now 22:04:22 wumpus: on 64-bit systems the additional thread overhead wouldn't be important at least 22:04:23 gmaxwell: I previously benchmarked, a long time ago, it was faster. 22:04:33 gmaxwell: (to use the HT core count) 22:04:44 wumpus: why was this changed at all then? 22:04:47 wumpus: I'm confused 22:05:04 sipa: good question! 22:05:06 gmaxwell: I had no idea we changed it. 22:05:25 wumpus: sigh  22:05:54 gmaxwell: What PR changed it? 22:06:51 gmaxwell: In any case, on 32-bit it's probably a good tradeoff... the extra ram overhead is worth avoiding. 22:07:22 wumpus: https://github.com/bitcoin/bitcoin/pull/6361 22:07:28 gmaxwell: PR 6461 btw. 22:07:37 gmaxwell: er lol at least you got it right. 22:07:45 wumpus: the complaint was that systems became unsuably slow when using that many thread 22:07:51 wumpus: so at least I got one thing right, woohoo 22:07:55 sipa: seems i even acked it! 22:07:57 BlueMatt: wumpus: there are more alus 22:08:38 BlueMatt: but we need to improve lock contention first 22:08:40 morcos: anywya, i think in the past the lock contention made 8 threads regardless of cores a bit dicey.. now that is much better (although more still to be done) 22:09:01 BlueMatt: or we can just merge #10192, thats fee 22:09:04 gribble: https://github.com/bitcoin/bitcoin/issues/10192 | Cache full script execution results in addition to signatures by TheBlueMatt · Pull Request #10192 · bitcoin/bitcoin · GitHub 22:09:11 BlueMatt: s/fee/free/ 22:09:21 morcos: no, we do not need to improve lock contention first. but we should probably do that before we increase the max beyond 16 22:09:26 BlueMatt: then we can toss concurrency issues out the window and get more speedup anyway 22:09:35 gmaxwell: wumpus: yea, well in QT I thought we also diminished the count by 1 or something? but yes, if the motivation was to reduce how heavily the machine was used, thats fair. 22:09:56 sipa: the benefit of using HT cores is certainly not a factor 2 22:09:58 wumpus: gmaxwell: for the default I think this makes a lot of sense, yes 22:10:10 gmaxwell: morcos: right now on my 24/28 physical core hosts going beyond 16 still reduces performance. 22:10:11 wumpus: gmaxwell: do we also restrict the maximum par using this? that'd make less sense 22:10:51 wumpus: if someone *wants* to use the virtual cores they should be able to by setting -par= 22:10:51 sipa: *flies to US* 22:10:52 BlueMatt: sipa: sure, but the shared cache helps us get more out of it than some others, as morcos points out 22:11:30 BlueMatt: (because it means our thread contention issues are less) 22:12:05 morcos: gmaxwell: yeah i've been bogged down in fee estimation as well (and the rest of life) for a while now.. otherwise i would have put more effort into jeremy's checkqueue 22:12:36 BlueMatt: morcos: heh, well now you can do other stuff while the rest of us get bogged down in understanding fee estimation enough to review it  22:12:37 wumpus: [to answer my own question: no, the limit for par is MAX_SCRIPTCHECK_THREADS, or 16] 22:12:54 morcos: but to me optimizing for more than 16 cores is pretty valuable as miners could use beefy machines and be less concerned by block validation time 22:14:38 BlueMatt: morcos: i think you may be surprised by the number of mining pools that are on VPSes that do not have 16 cores  22:15:34 gmaxwell: I assume right now most of the time block validation is bogged in the parts that are not as concurrent. simple because caching makes the concurrent parts so fast. (and soon to hopefully increase with bluematt's patch) 22:17:55 gmaxwell: improving sha2 speed, or transaction malloc overhead are probably bigger wins now for connection at the tip than parallelism beyond 16 (though I'd like that too). 22:18:21 BlueMatt: sha2 speed is big 22:18:27 morcos: yeah lots of things to do actually... 22:18:57 gmaxwell: BlueMatt: might be a tiny bit less big if we didn't hash the block header 8 times for every block.  22:21:27 BlueMatt: ehh, probably, but I'm less rushed there 22:21:43 BlueMatt: my new cache thing is about to add a bunch of hashing 22:21:50 BlueMatt: 1 sha round per tx 22:22:25 BlueMatt: and sigcache is obviously a ton ``` Tree-SHA512: a594430e2a77d8cc741ea8c664a2867b1e1693e5050a4bbc8511e8d66a2bffe241a9965f6dff1e7fbb99f21dd1fdeb95b826365da8bd8f9fab2d0ffd80d5059c
2018-03-06Merge #12616: Set modal overlay hide button as defaultWladimir J. van der Laan
cfdd89589 qt: Set modal overlay hide button as default (João Barbosa) Pull request description: Without this change the only way to close the modal overlay is to click the hide button. Setting the button to default allows to activate it with the ENTER key. Before: <img width="849" alt="screen shot 2018-03-06 at 15 14 23" src="https://user-images.githubusercontent.com/3534524/37040276-58af9ce0-2151-11e8-8c55-50acdea669d9.png"> After: <img width="848" alt="screen shot 2018-03-06 at 15 12 41" src="https://user-images.githubusercontent.com/3534524/37040294-650d1c9c-2151-11e8-8245-2da250a71b3d.png"> Tree-SHA512: a93ef440a507843ed7870fd07a693af93dd97c8fce2fb6824c69a227b5dee258f340bf1ae344da32a9dd6e6cb2330f72db9dac9635bbd34184c3e7f8476a472e
2018-03-06Add test-before-evict discipline to addrmanEthan Heilman
Changes addrman to use the test-before-evict discipline in which an address is to be evicted from the tried table is first tested and if it is still online it is not evicted. Adds tests to provide test coverage for this change. This change was suggested as Countermeasure 3 in Eclipse Attacks on Bitcoin’s Peer-to-Peer Network, Ethan Heilman, Alison Kendler, Aviv Zohar, Sharon Goldberg. ePrint Archive Report 2015/263. March 2015.
2018-03-06gui: Show messages as text not htmlWladimir J. van der Laan
Currently, error messages (such as InitError) are displayed as-is, which means Qt does auto detection on the format. This means that it's possible to inject HTML from the command line though e.g. specifying a wallet name with HTML in it. This isn't a direct security risk because fetching content from internet is disabled (and as far as I know we never report strings received from the network this way). However, it can be confusing. So explicitly force the format as text.
2018-03-06Merge #12604: Add DynamicMemoryUsage() to CDBWrapper to estimate LevelDB ↵Wladimir J. van der Laan
memory use 741f0177c Add DynamicMemoryUsage() to LevelDB (Evan Klitzke) Pull request description: This adds a new method `CDBWrapper::DynamicMemoryUsage()` similar to Bitcoin's existing methods of the same name. It's implemented by asking LevelDB for the information, and then parsing the string response. I've also added logging to `CDBWrapper::WriteBatch()` to track this information: ``` $ tail -f ~/.bitcoin/testnet3/debug.log | grep WriteBatch 2018-03-05 19:34:55 WriteBatch memory usage: db=chainstate, before=0.0MiB, after=0.0MiB 2018-03-05 19:35:17 WriteBatch memory usage: db=index, before=0.0MiB, after=0.0MiB 2018-03-05 19:35:17 WriteBatch memory usage: db=chainstate, before=0.0MiB, after=8.0MiB 2018-03-05 19:35:22 WriteBatch memory usage: db=index, before=0.0MiB, after=0.0MiB 2018-03-05 19:35:22 WriteBatch memory usage: db=chainstate, before=8.0MiB, after=17.0MiB 2018-03-05 19:35:26 WriteBatch memory usage: db=index, before=0.0MiB, after=0.0MiB 2018-03-05 19:35:27 WriteBatch memory usage: db=chainstate, before=9.0MiB, after=18.0MiB 2018-03-05 19:35:40 WriteBatch memory usage: db=index, before=0.0MiB, after=0.0MiB 2018-03-05 19:35:41 WriteBatch memory usage: db=chainstate, before=9.0MiB, after=7.0MiB 2018-03-05 19:35:52 WriteBatch memory usage: db=index, before=0.0MiB, after=0.0MiB 2018-03-05 19:35:52 WriteBatch memory usage: db=chainstate, before=7.0MiB, after=9.0MiB ^C ``` As LevelDB doesn't seem to provide a way to get the database name, I've also added a new `m_name` field to the `CDBWrapper`. This is necessary because we have multiple LevelDB databases (two now, and possibly more later, e.g. #11857). I am using this information in other branches where I'm experimenting with changing LevelDB buffer sizes. Tree-SHA512: 7ea8ff5484bb07ef806af17d000c74ccca27d2e0f6c3229e12d93818f00874553335d87428482bd8acbcae81ea35aef2a243326f9fccbfac25989323d24391b4
2018-03-06qt: Set modal overlay hide button as defaultJoão Barbosa
2018-03-06Add DynamicMemoryUsage() to LevelDBEvan Klitzke
This adds a DynamicMemoryUsage() method similar to the existing methods of the same name, and adds logging of memory usage to CDBWrapper::WriteBatch.
2018-03-05Merge #12568: Allow dustrelayfee to be set to zeroWladimir J. van der Laan
874e81808 Allow dustrelayfee to be set to zero (Luke Dashjr) Pull request description: I don't see and can't think of any rationale for forbidding this configuration. Tree-SHA512: df09441f4aec63e79bea94838b7f8e336cebaeb0a22b5e58d27937bbeb1377f229921aeae43674e0b63fc40a39ae51a264d48aa1cdb4cbd0e3339d32856698bf
2018-03-05Merge #11880: Stop special-casing phashBlock handling in validation for TBVWladimir J. van der Laan
9c5a4a6ed Stop special-casing phashBlock handling in validation for TBV (Matt Corallo) Pull request description: There is no reason to do this, really, we already have "ignore PoW" flags. Motivated by https://github.com/bitcoin/bitcoin/pull/11739#discussion_r155841721 Tree-SHA512: 37cb1ae5b11c9e8ed7a679bb07ad3b119a2a014744b26d197d67ba21beb19fe6815271df935e40f7c7bd5f2e4d7ae4dad7bd4d00fa230a8d789f37e9de31a769
2018-03-05Merge #12501: [qt] Improved "custom fee" explanation in tooltipWladimir J. van der Laan
0bc095efd [qt] Improved "custom fee" explanation in tooltip (Randolf Richardson) Pull request description: Thanks to @dooglus for asking about this tooltip in Issue 12500. Reference: https://www.github.com/bitcoin/bitcoin/issues/12500 I would also appreciate it if someone can confirm that 1 kilobyte in this field indeed represents 1,000 bytes rather than 1,024 bytes (if it's supposed to be 1,024, then I'll gladly make the necessary changes to reflect this). Tree-SHA512: da2fe0128411b5ef6f0a26382a80601efcf823c3f3591bdd83a7fe7e25777728e7eb89e2e8b175b991566e63838aca12d204792f981031b86e7b2ba28ca50021
2018-03-05Merge #11889: Drop extra script variable in ProduceSignatureWladimir J. van der Laan
9360f5032 Drop extra script variable in ProduceSignature (Russell Yanofsky) Pull request description: Was slightly confusing. Tree-SHA512: 1d18f92c133772ffc8eb71826c8d778988839a14bcefc50f9c591111b0a5f81ebc12bca0f1ab25d5fdd02d3d50c2325c04cbfcbdcd18a7b80ca112d049c2327d
2018-03-05Merge #12516: Avoid unintentional unsigned integer wraparounds in testsWladimir J. van der Laan
2736c9e05 Avoid unintentional unsigned integer wraparounds in tests (practicalswift) Pull request description: Avoid unintentional unsigned integer wraparounds in tests. This is a subset of #11535 as suggested by @MarcoFalke :-) Tree-SHA512: 4f4ee8a08870101a3f7451aefa77ae06aaf44e3c3b2f7555faa2b8a8503f97f34e34dffcf65154278f15767dc9823955f52d1aa7b39930b390e57cdf2b65e0f3
2018-03-05Merge #12573: Fix compilation when compiler do not support __builtin_clz*Wladimir J. van der Laan
18307849b Consensus: Fix bug when compiler do not support __builtin_clz* (532479301) Pull request description: #ifdef is not correct since defination is defined to 0 or 1. Should change to #if Tree-SHA512: ba13a591d28f4d7d6ebaab081be4304c43766a611226f8d2994c8db415dfcf318e82217d26a8c4af290760c68eded9503b39535b0e6e079ded912e6a8fca5b36
2018-03-05Merge #12434: [doc] dev-notes: Members should be initializedWladimir J. van der Laan
fa9461473 [doc] dev-notes: Members should be initialized (MarcoFalke) Pull request description: Also, remove mention of threads that were removed long ago. Motivation: Make it easier to spot bugs such as #11654 and #12426 Tree-SHA512: 8ca1cb54e830e9368803bd98a8b08c39bf2d46f079094ed7e070b32ae15a6e611ce98d7a614f897803309f4728575e6bc9357fab1157c53d2536417eb8271653
2018-03-05Merge #12580: Show a transaction's virtual size in its details dialogMarcoFalke
ee041196fc Show a transaction's virtual size in its details dialog. (Chris Moore) Pull request description: #12501 looks like it is going to mention transaction's "virtual size" in the custom fee tooltip, so let's display the virtual size when the user double-clicks a transaction. Tree-SHA512: c60ae23c9f86edfba086b840519941d8e8ee1be9da5987ffe6dee3255943ea5d215708ce57464f109a1d1c612c4c0eeb11f8f3e203d8a8cfc1f8ec753a8aac27
2018-03-05Merge #12543: Fix typosMarcoFalke
d918eb7864 Fix typos (practicalswift) Pull request description: Fix typos. Tree-SHA512: c790e49be6e01c8d70ebd872ef61cc210c1de15c4a1e5a98280169f32dc8a14cd68f4dd1c23afc76758b28ef355ab12ded2ff7504562dc9b69a11839ad3cd7e3
2018-03-04Add a test for large tx output scripts with segwit input.Richard Kiss
2018-03-03Create new wallet databases as directories rather than filesRussell Yanofsky
This change should make it easier for users to make complete backups of wallets because they can now just back up the specified `-wallet=<path>` path directly, instead of having to back up the specified path as well as the transaction log directory (for incompletely flushed wallets). Another advantage of this change is that if two wallets are located in the same directory, they will now use their own BerkeleyDB environments instead using a shared environment. Using a shared environment makes it difficult to manage and back up wallets separately because transaction log files will contain a mix of data from all wallets in the environment.
2018-03-03Allow wallet files not in -walletdir directoryRussell Yanofsky
Remove restriction that -wallet filenames can only refer to files in the -walletdir directory.
2018-03-03Allow wallet files in multiple directoriesRussell Yanofsky
Remove requirement that two wallet files can only be opened at the same time if they are contained in the same directory. This change mostly consists of updates to function signatures (updating functions to take fs::path arguments, instead of combinations of strings, fs::path, and CDBEnv / CWalletDBWrapper arguments).
2018-03-02Fix ListCoins test failure due to unset g_wallet_allow_fallback_feeRussell Yanofsky
New global variables were introduced in #11882 and not setting them causes: wallet/test/wallet_tests.cpp(638): error in "ListCoins": check wallet->CreateTransaction({recipient}, wtx, reservekey, fee, changePos, error, dummy) failed wallet/test/wallet_tests.cpp(679): error in "ListCoins": check list.begin()->second.size() == 2 failed [1 != 2] wallet/test/wallet_tests.cpp(686): error in "ListCoins": check available.size() == 2 failed [1 != 2] wallet/test/wallet_tests.cpp(705): error in "ListCoins": check list.begin()->second.size() == 2 failed [1 != 2] It's possible to reproduce the failure reliably by running: src/test/test_bitcoin --log_level=test_suite --run_test=wallet_tests/ListCoins Failures happen nondeterministically because boost test framework doesn't run tests in a specified order, and tests that run previously can set the global variables and mask the bug.
2018-03-01Show a transaction's virtual size in its details dialog.Chris Moore
2018-03-01Merge #12182: Remove useless string initializationsWladimir J. van der Laan
19ac86e Remove useless string initialization. (Alin Rus) Pull request description: Tree-SHA512: 4273dd7e8ed083cc9d05fc70967465e405085b630c000f829648dd44dd0cfe2249f6af1498b02f54b4ca73833130b802488bae8eca0d4d0b803a6f0122b19e8f