Commit graph

16516 commits

Author SHA1 Message Date
Vasil Dimov
2b3ea39de4
Polish interfaces around PeerLogicValidation
* Make PeerLogicValidation final to prevent deriving from it [1]
* Prevent deletions of NetEventsInterface and CValidationInterface
  objects via a base class pointer

[1] silences the following compiler warning (from Clang 7.0.0):

/usr/include/c++/v1/memory:2285:5: error: delete called on non-final 'PeerLogicValidation' that has
      virtual functions but non-virtual destructor [-Werror,-Wdelete-non-virtual-dtor]
    delete __ptr;
    ^
/usr/include/c++/v1/memory:2598:7: note: in instantiation of member function
      'std::__1::default_delete<PeerLogicValidation>::operator()' requested here
      __ptr_.second()(__tmp);
      ^
init.cpp:201:15: note: in instantiation of member function 'std::__1::unique_ptr<PeerLogicValidation,
      std::__1::default_delete<PeerLogicValidation> >::reset' requested here
    peerLogic.reset();
                  ^
2018-03-14 10:11:01 +01:00
Florian Schmaus
79ddfad486 Apply hardening measurements in bitcoind systemd service file
Adds typical systemd hardening measurements for network services.
2018-03-14 08:11:07 +01:00
Pieter Wuille
6acd8700bc
Merge #9680: Unify CWalletTx construction
b4bc32a451 [wallet] Get rid of CWalletTx default constructor (Russell Yanofsky)
a128bdc9e1 [wallet] Construct CWalletTx objects in CommitTransaction (Russell Yanofsky)

Pull request description:

  Two commits:

  - `Construct CWalletTx objects in CommitTransaction` moves a bunch of CWalletTx initialization into CWallet::CommitTransaction to dedup some code and avoid future inconsistencies in how wallet transactions are created.
  - `Get rid of CWalletTx default constructor` does what is described and eliminates the possibility of empty transaction entries being inadvertently created by mapWallet[hash] accesses.

  Both of these changes were originally part of #9381

Tree-SHA512: af3841c4f0539e0662d81b33c5369fc70aa06ddde1c59cb00fb21c9e4c7d9ff47f1edc5040cb463af1333838802c56b3ef875b939e2b804ee45b8e0294a4371c
2018-03-13 19:16:39 -07:00
MarcoFalke
18462960c0
Merge #12681: Fix ComputeTimeSmart test failure with -DDEBUG_LOCKORDER
33eb9071b9 Fix ComputeTimeSmart test failure with -DDEBUG_LOCKORDER (Russell Yanofsky)

Pull request description:

  Failure looks like:

  ```
  Entering test case "ComputeTimeSmart"
  test_bitcoin: sync.cpp💯 void potential_deadlock_detected(const std::pair<void*, void*>&, const LockStack&, const LockStack&): Assertion `false' failed.
  unknown location(0): fatal error in "ComputeTimeSmart": signal: SIGABRT (application abort requested)
  wallet/test/wallet_tests.cpp(566): last checkpoint
  ```

  Reproducible with:

  ```
  ./configure --enable-debug
  make -C src test/test_bitcoin && src/test/test_bitcoin --log_level=test_suite --run_test=wallet_tests/ComputeTimeSmart
  ```

  Seems to be caused by acquiring `cs_main` inside `CWallet::ComputeTimeSmart` in #11041.

  I think this may be causing timeouts on travis like: https://travis-ci.org/bitcoin/bitcoin/jobs/353005676#L2692

Tree-SHA512: b263cd122ea9c88204d1d8e7e35291c71ea6319f05114c5009235a75dbd0f669bc0394f44afeed0d9eb08c2a956cd7c08f1ac4ef28616932fef9b43eaac5521b
2018-03-13 20:15:09 -04:00
Pieter Wuille
172f5fa738 Support deserializing into temporaries
Currently, the READWRITE macro cannot be passed any non-const temporaries, as
the SerReadWrite function only accepts lvalue references.

Deserializing into a temporary is very common, however. See for example
things like 's >> VARINT(n)'. The VARINT macro produces a temporary wrapper
that holds a reference to n.

Fix this by accepting non-const rvalue references instead of lvalue references.
We don't propagate the rvalue-ness down, as there are no useful optimizations
that only apply to temporaries.

Then use this new functionality to get rid of many (but not all) uses of the
'REF' macro (which casts away constness).
2018-03-13 17:04:31 -07:00
Pieter Wuille
2761bca997 Merge READWRITEMANY into READWRITE 2018-03-13 17:04:28 -07:00
Russell Yanofsky
33eb9071b9 Fix ComputeTimeSmart test failure with -DDEBUG_LOCKORDER
Failure looks like:

    Entering test case "ComputeTimeSmart"
    test_bitcoin: sync.cpp💯 void potential_deadlock_detected(const std::pair<void*, void*>&, const LockStack&, const LockStack&): Assertion `false' failed.
    unknown location(0): fatal error in "ComputeTimeSmart": signal: SIGABRT (application abort requested)
    wallet/test/wallet_tests.cpp(566): last checkpoint

Reproducible with:

    ./configure --enable-debug
    make -C src test/test_bitcoin && src/test/test_bitcoin --log_level=test_suite --run_test=wallet_tests/ComputeTimeSmart

Happens due to "92fabcd443 Add LookupBlockIndex function" which acquires
cs_main from inside CWallet::ComputeTimeSmart.
2018-03-13 19:41:38 -04:00
MarcoFalke
fa79016ab0
travis: Clone depth 1 unless $CHECK_DOC 2018-03-13 17:25:05 -04:00
MarcoFalke
0630974647
Merge #11772: [tests] Change invalidblockrequest to use BitcoinTestFramework
e97b113b04 [tests] Change invalidblockrequest to use BitcoinTestFramework (John Newbery)
2b7064eda7 [tests] Fix flake8 warnings in invalidblockrequest (John Newbery)
54b8c580b7 [test] Fix nits leftover from 11771 (Conor Scott)

Pull request description:

  Builds on #11771. Please review that PR first

  Next step in #10603.

  - first commit tidies up invalidblockrequest.py
  - second commit removes usage of ComparisonTestFramework

Tree-SHA512: 14b10c09c8c0ebef4a9176eb5b883a275d04c096785ee31b84ef594eed346ec6344d7ed32184c5fb397e744725df3911f45cdfadd0810e5a52eaa256084e3456
2018-03-13 17:11:09 -04:00
Wladimir J. van der Laan
d42a4fe5aa
Merge #11041: Add LookupBlockIndex
92fabcd44 Add LookupBlockIndex function (João Barbosa)
43a32b739 Add missing cs_lock in CreateWalletFromFile (João Barbosa)
f814a3e8f Fix cs_main lock in LoadExternalBlockFile (João Barbosa)
c651df8b3 Lock cs_main while loading block index in AppInitMain (João Barbosa)
02de6a6bc Assert cs_main is held when accessing mapBlockIndex (João Barbosa)

Pull request description:

  Replace all `mapBlockIndex` lookups with the new `LookupBlockIndex()`. In some cases it avoids a second lookup.

Tree-SHA512: ca31118f028a19721f2191d86f2dd398144d04df345694575a64aeb293be2f85785201480c3c578a0ec99690516205708558c0fd4168b09313378fd4e60a8412
2018-03-13 19:12:35 +01:00
Wladimir J. van der Laan
af88094e4f
Merge #12658: Sanitize some wallet serialization
42343c748 Split up and sanitize CAccountingEntry serialization (Pieter Wuille)
029ecac1b Split up and sanitize CWalletTx serialization (Pieter Wuille)

Pull request description:

  This is a small subset of changes taken from #10785, fixing a few of the craziest constness violations in the serialization code.

  `CWalletTx` currently serializes some of its fields by embedding them in a key-value `mapValue`, which is modified (and then fixed up) even from the `Serialize` method (for which `mapValue` is const). `CAccountingEntry` goes even further in that it stores such a map by appending it into `strComment` after a null char, which is again later fixed up again.

  Fix this by splitting the serialization and deserialization code, and making the serialization act on a copy of `mapValue` / `strComment`.

Tree-SHA512: 487e04996dea6aba5b9b8bdaf2c4e680808f111a15afc557b8d078e14b01e4f40f8ef27588869be62f9a87052117c17e0a0c26c59150f83472a9076936af035e
2018-03-13 18:39:55 +01:00
Wladimir J. van der Laan
702e8b70bd
Merge #11872: [rpc] createrawtransaction: Accept sorted outputs
fac70134a rpc: Update createrawtransaction examples (MarcoFalke)
fa06dfce0 [rpc] createrawtransaction: Accept sorted outputs (MarcoFalke)
8acd25d85 rpc: Allow typeAny in RPCTypeCheck (MarcoFalke)

Pull request description:

  The second parameter of the `createrawtransaction` is a dictionary of the outputs. This comes with at least two drawbacks:

  * In case of duplicate keys, either of them might silently disappear, with no user feedback at all. A user needs to make other mistakes, but this could eventually lead to abnormal tx fees.
  * A dictionary does not guarantee that keys are sorted. Again, a user needs to keep this in mind, as it could eventually lead to excessive tx fees.

  Even though my scenario of loss-of-funds is unlikely to happen, I see it as a inconvenience that should be fixed.

Tree-SHA512: cd562f34f7f9f79c7d3433805971325c388c2035611be283980f4049066a622df4f0afdc11d7ac96662260ec0115147cb65e1ab5268f5a1b063242f3fe425f77
2018-03-13 18:00:06 +01:00
Wladimir J. van der Laan
0f0229d0c3
Merge #12643: [qa] util: Remove unused sync_chain
fa1436c42 [qa] util: Remove unused sync_chain (MarcoFalke)

Pull request description:

  The util function `sync_blocks` already checks for equal chains, so we can remove the unused `sync_chain`.

  Also cleaned up the errors that are printed in case of timeout:

  ```
  AssertionError: Block sync timed out:
    '72a3a3e9dcfd0a09204c3447af0f481d19641eeadbe6a91b8e680ed614bc7712'
    '5032af4ae22ae7a21afdc9d9f516877309c4dd8ef2ecadb9354be7088439b4a6'
    '5032af4ae22ae7a21afdc9d9f516877309c4dd8ef2ecadb9354be7088439b4a6'
  ```
  and
  ```
  AssertionError: Mempool sync timed out:
    {'c2af943d9b321c36e0f5a153a9d3d8b11bdd46ceb28e38f5fd2c722e3edb3563'}
    set()
    set()
  ```

Tree-SHA512: cb4ad30e3e3773072f59afa2c81cfa27bd8f389a93f02acb919990298627fcfbaa53a3d3944d827cc8a5d009871e42a47ea09e9bb93e85c22e3af6a24a574e5d
2018-03-13 17:45:48 +01:00
Andrew Chow
73b5bf2cb4 Add a test to make sure that negative effective values are filtered 2018-03-13 12:39:35 -04:00
Andrew Chow
76d2f068a4 Benchmark BnB in the worst case where it exhausts 2018-03-13 12:39:35 -04:00
Andrew Chow
6a34ff5335 Have SelectCoinsMinConf and SelectCoins use BnB or Knapsack and use it
Allows SelectCoinsMinConf and SelectCoins be able to switch between
using BnB or Knapsack for choosing coins.

Has SelectCoinsMinConf do the preprocessing necessary to support either
BnB or Knapsack. This includes calculating the filtering the effective
values for each input.

Uses BnB in CreateTransaction to find an exact match for the output.
If BnB fails, it will fallback to the Knapsack solver.
2018-03-13 12:39:27 -04:00
Andrew Chow
fab04887c2 Add a GetMinimumFeeRate function which is wrapped by GetMinimumFee 2018-03-13 12:39:26 -04:00
Andrew Chow
cd927ff328 Move original knapsack solver tests to coinselector_tests.cpp 2018-03-13 12:39:26 -04:00
Andrew Chow
fb716f7b25 Move current coin selection algorithm to coinselection.{cpp,h}
Moves the current coin selection algorithm out of SelectCoinsMinConf
and puts it in coinselection.{cpp,h}. The new function, KnapsackSolver,
instead of taking a vector of COutputs, will take a vector of CInputCoins
that is prepared by SelectCoinsMinConf.
2018-03-13 12:39:26 -04:00
Andrew Chow
4566ab75f2 Add tests for the Branch and Bound algorithm 2018-03-13 12:39:26 -04:00
Andrew Chow
4b2716da46 Remove coinselection.h -> wallet.h circular dependency
Changes CInputCoin to coinselection and to use CTransactionRef in
order to avoid a circular dependency. Also moves other coin selection
specific variables out of wallet.h to coinselectoin.h
2018-03-13 12:39:26 -04:00
Andrew Chow
7d77eb1a5b Use a struct for output eligibility
Instead of specifying 3 parameters, use a struct for those parameters
in order to reduce the number of arguments to SelectCoinsMinConf.
2018-03-13 12:39:26 -04:00
Andrew Chow
ce7435cf1e Move output eligibility to a separate function 2018-03-13 12:39:26 -04:00
Andrew Chow
0185939be6 Implement Branch and Bound coin selection in a new file
Create a new file for coin selection logic and implement the BnB algorithm in it.
2018-03-13 12:39:17 -04:00
MarcoFalke
0f58d7f3d6
Merge #12405: travis: Full clone for git subtree check
fa44af5cd2 travis: Full clone for git subtree check (MarcoFalke)

Pull request description:

  Lazy workaround and fix for #12388

Tree-SHA512: ef2843c07bfe00b91a6f7ee551172b54db62a7e0120c734be2fa5e8cb2cb232e34f69239cae3cb319734e321822040ee7dcff00b8f0387a01afa6b3d26cc1ca3
2018-03-13 12:37:49 -04:00
MarcoFalke
3d16f58153
Merge #12659: Improve Fatal LevelDB Log Messages
f4b68b3f8f Log fatal LevelDB errors more verbosely (Evan Klitzke)

Pull request description:

  The `leveldb::Status` class logs the filename of corrupted files, which might be useful when looking at error reports from usres. In theory this is already logged via the `LogPrintf()` statement in `HandleError()`, but that may not always be close to where the final error message is logged, e.g. see https://github.com/bitcoin/bitcoin/issues/11355#issuecomment-340340542 where the log trace provided by the user does not contain that information (and other user comments in the same issue).

  This also adds a log message instructing the user to run the process with `-debug=leveldb`, which provides much more verbose error messages about LevelDB internals. This may not really help much, but improving the error messages here can't hurt.

Tree-SHA512: bbdc52f0ae50e77e4d74060f9f77c6a0b10d5fad1da371eec1ad38a499af5fde3a3b34dd915e721f6bbe779a1f9693ab04fd9cdbcfa95c28f2979b4c0df181c9
2018-03-13 12:16:32 -04:00
Wladimir J. van der Laan
ae5bcc7abb
Merge #10694: Remove redundant code in MutateTxSign(CMutableTransaction&, const std::string&)
b1149ee4c Remove redundant code in MutateTxSign(CMutableTransaction&, const std::string&) (practicalswift)

Pull request description:

  Remove redundant code in `MutateTxSign(CMutableTransaction&, const std::string&)`.

Tree-SHA512: 0f0aba4def18b9a4ca73f2bd676881bc05d852d1d34b564416b2b979056263e5471c5d8ce743af44ef6bce11d77b74d18151c983b735cdf47c36f6591ab4b3fb
2018-03-13 16:59:50 +01:00
MarcoFalke
66e91420ab
Merge #12545: test: Use wait_until to ensure ping goes out
0eb84f30d8 test: Use wait_until to ensure ping goes out (Ben Woosley)

Pull request description:

  Intermittent failure evident here:
  https://travis-ci.org/bitcoin/bitcoin/jobs/344021180

Tree-SHA512: 8d3cbc55563160390d3918eb0b22348990cd81ad35c0563033f19142cb43b86a150fecc7df2196209ba00aaa805c67285451e582f387f8dac22d5e44d54e8a0d
2018-03-12 20:52:32 -04:00
MarcoFalke
fa1436c429
[qa] util: Remove unused sync_chain 2018-03-12 20:32:04 -04:00
João Barbosa
1ee72a819f qt: Avoid querying unnecessary model data when filtering transactions 2018-03-11 22:21:51 +00:00
MarcoFalke
d8d9162f5b
Merge #12572: [script] lint-whitespace: find errors more easily
0fbed98e42 [script] lint-whitespace: improve print linenumber (Akio Nakamura)

Pull request description:

  Before this PR, the linenumber infomaition is output if trailing-space or tab code was found, but the output occurence is only per a file.
  This PR separates the output timing of file name and line number.
  As a result, users will find where they need to fix more easily.

  example:

  0) git diff
  ```
  diff --git a/dummy.txt b/dummy.txt
  index c0ce4d776..aebbdb88d 100644
  --- a/dummy.txt
  +++ b/dummy.txt
  @@ -1,2 +1,2 @@
  -1
  -2
  +1
  +       2
  @@ -8,2 +8,2 @@
  -8
  -9
  +       8
  +9
  ```

  1) before this PR - Is there "9 " in second line? It may lead to be misunderstood.
  ```
  This diff appears to have added new lines with trailing whitespace.
  The following changes were suspected:

  diff --git a/dummy.txt b/dummy.txt
  @@ -1,2 +1,2 @@
  +1
  +9
  ```

  2) after this PR
  ```
  This diff appears to have added new lines with trailing whitespace.
  The following changes were suspected:

  diff --git a/dummy.txt b/dummy.txt
  @@ -1,2 +1,2 @@
  +1
  @@ -8,2 +8,2 @@
  +9
  ```

Tree-SHA512: 2fd52e3c982786f86cfe10aa2578589bc9c502bcad9b85111467840d726143330c23968cde5483ee0f563893c8381044b80e8c22a7c8eca56fc73c548b9a9496
2018-03-11 17:30:04 -04:00
MarcoFalke
fac70134a9
rpc: Update createrawtransaction examples 2018-03-11 16:48:19 -04:00
Pieter Wuille
42343c748c Split up and sanitize CAccountingEntry serialization 2018-03-11 10:56:31 -07:00
Nick Vercammen
e29c6c8c61
Ubuntu xenial first dependencies
Add update and upgrade commands to enable the installation of the first dependencies on ubuntu xenial. If those are not executed some packages can not be found.
2018-03-11 15:11:07 +01:00
Luke Dashjr
8172d3aadb configure: UniValue 1.0.4 is required for pushKV(, bool) 2018-03-10 22:14:04 +00:00
Wladimir J. van der Laan
bb98aec674
Merge #12567: util: Print timestamp strings in logs using ISO 8601 formatting
a7324bd79 Format timestamps using ISO 8601 formatting (e.g. "2018-02-28T12:34:56Z") (practicalswift)

Pull request description:

  Print timestamp strings in logs using [ISO 8601](https://en.wikipedia.org/wiki/ISO_8601) formatting (e.g. `2018-02-28T12:34:56Z`):
  * `Z` is the zone designator for the zero [UTC](https://en.wikipedia.org/wiki/Coordinated_Universal_Time) offset.
  * `T` is the delimiter used to separate date and time.

  This makes it clear for the end-user that the date/time logged is specified in UTC and not in the local time zone.

  Before this patch:

  ```
  2018-02-28 12:34:56 New outbound peer connected: version: 70015, blocks=1286123, peer=0
  ```

  After this patch:

  ```
  2018-02-28T12:34:56Z New outbound peer connected: version: 70015, blocks=1286123, peer=0
  ```

Tree-SHA512: 52b53c3d3d11ddf4af521a3b5f90a79f6e6539ee5955ec56a5aa2c6a5cf29cecf166d8cb43277c62553c3325a31bcea83691acbb4e86429c523f8aff8d7b210a
2018-03-10 17:15:00 +01:00
Evan Klitzke
f4b68b3f8f Log fatal LevelDB errors more verbosely 2018-03-09 22:51:10 -08:00
Andrew Chow
f84fed8eb6 Store effective value, fee, and long term fee in CInputCoin
Have CInputCOin store effective value information. This includes the effective
value itself, the fee, and the long term fee for the input
2018-03-09 21:15:40 -05:00
Andrew Chow
12ec29d3bb Calculate and store the number of bytes required to spend an input 2018-03-09 21:15:36 -05:00
Pieter Wuille
029ecac1bc Split up and sanitize CWalletTx serialization 2018-03-09 17:04:31 -08:00
practicalswift
a7324bd799 Format timestamps using ISO 8601 formatting (e.g. "2018-02-28T12:34:56Z")
* Z is the zone designator for the zero UTC offset.
* T is the delimiter used to separate date and time.

This makes it clear for the end-user that the date/time logged is
specified in UTC and not in the local time zone.
2018-03-09 15:02:01 +01:00
practicalswift
de04fde534 bitcoin-cli: Provide a better error message when bitcoind is not running
Before this patch:

```
$ bitcoin-cli -testnet echo 'hello world'
error: Could not locate RPC credentials. No authentication cookie could be found, and RPC password is not set.  See -rpcpassword and -stdinrpcpass.  Configuration file: (/root/.bitcoin/bitcoin.conf)
```

After this patch:

```
$ bitcoin-cli -testnet echo 'hello world'
error: Could not connect to the server 127.0.0.1:18332

Make sure the bitcoind server is running and that you are connecting to the correct RPC port.
```
2018-03-09 14:55:44 +01:00
Russell Yanofsky
b4bc32a451 [wallet] Get rid of CWalletTx default constructor
No change in behavior in the normal case. But buggy mapWallet lookups with
invalid txids will now throw exceptions instead of inserting dummy entries into
the map, and potentially causing segfaults and other failures.

This also makes it a compiler error to use the mapWallet[hash] syntax which
could create dummy entries.
2018-03-07 21:12:47 -05:00
MarcoFalke
29fad97c32
Merge #12607: depends: Remove ccache
cc879675e1 depends: Remove ccache (fanquake)

Pull request description:

  After discussion with @theuni, we can possibly just remove ccache from depends entirely.

  Related to #12606

Tree-SHA512: ae0a60c8d97467fa41d617daa48ed22159cf32613808634a983304901dd5ed27124e77868d2314004e5144f7b35ba1333f720bb12daec4c5ca03aaf29d593ef2
2018-03-07 21:12:47 -05:00
Russell Yanofsky
a128bdc9e1 [wallet] Construct CWalletTx objects in CommitTransaction
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.
2018-03-07 21:12:47 -05:00
MarcoFalke
fa2310572f
qa: Cache only chain and wallet for regtest datadir 2018-03-07 15:53:30 -05:00
MarcoFalke
fa06dfce0f
[rpc] createrawtransaction: Accept sorted outputs 2018-03-07 12:58:14 -05:00
Wladimir J. van der Laan
a34ac6ae07
Merge #9598: Improve readability by removing redundant casts to same type (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 82274c02ed --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
2018-03-07 17:47:46 +01:00
Wladimir J. van der Laan
efa18a230d
Merge #12626: Limit the number of IPs addrman learns from each DNS seeder
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
2018-03-07 17:43:35 +01:00
Wladimir J. van der Laan
842f61a675
Merge #11900: [script] simplify CheckMinimalPush checks, add safety assert
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
2018-03-07 17:18:14 +01:00