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2019-02-27[addrman] Ensure collisions eventually get resolvedSuhas Daftuar
After 40 minutes, time out a test-before-evict entry and just evict without testing. Otherwise, if we were unable to test an entry for some reason, we might break using feelers altogether.
2019-01-05Use C++11 default member initializersMarcoFalke
2018-12-12Make addrman use its local RNG exclusivelyPieter Wuille
2018-11-04scripted-diff: Move util files to separate directory.Jim Posen
-BEGIN VERIFY SCRIPT- mkdir -p src/util git mv src/util.h src/util/system.h git mv src/util.cpp src/util/system.cpp git mv src/utilmemory.h src/util/memory.h git mv src/utilmoneystr.h src/util/moneystr.h git mv src/utilmoneystr.cpp src/util/moneystr.cpp git mv src/utilstrencodings.h src/util/strencodings.h git mv src/utilstrencodings.cpp src/util/strencodings.cpp git mv src/utiltime.h src/util/time.h git mv src/utiltime.cpp src/util/time.cpp sed -i 's/<util\.h>/<util\/system\.h>/g' $(git ls-files 'src/*.h' 'src/*.cpp') sed -i 's/<utilmemory\.h>/<util\/memory\.h>/g' $(git ls-files 'src/*.h' 'src/*.cpp') sed -i 's/<utilmoneystr\.h>/<util\/moneystr\.h>/g' $(git ls-files 'src/*.h' 'src/*.cpp') sed -i 's/<utilstrencodings\.h>/<util\/strencodings\.h>/g' $(git ls-files 'src/*.h' 'src/*.cpp') sed -i 's/<utiltime\.h>/<util\/time\.h>/g' $(git ls-files 'src/*.h' 'src/*.cpp') sed -i 's/BITCOIN_UTIL_H/BITCOIN_UTIL_SYSTEM_H/g' src/util/system.h sed -i 's/BITCOIN_UTILMEMORY_H/BITCOIN_UTIL_MEMORY_H/g' src/util/memory.h sed -i 's/BITCOIN_UTILMONEYSTR_H/BITCOIN_UTIL_MONEYSTR_H/g' src/util/moneystr.h sed -i 's/BITCOIN_UTILSTRENCODINGS_H/BITCOIN_UTIL_STRENCODINGS_H/g' src/util/strencodings.h sed -i 's/BITCOIN_UTILTIME_H/BITCOIN_UTIL_TIME_H/g' src/util/time.h sed -i 's/ util\.\(h\|cpp\)/ util\/system\.\1/g' src/Makefile.am sed -i 's/utilmemory\.\(h\|cpp\)/util\/memory\.\1/g' src/Makefile.am sed -i 's/utilmoneystr\.\(h\|cpp\)/util\/moneystr\.\1/g' src/Makefile.am sed -i 's/utilstrencodings\.\(h\|cpp\)/util\/strencodings\.\1/g' src/Makefile.am sed -i 's/utiltime\.\(h\|cpp\)/util\/time\.\1/g' src/Makefile.am sed -i 's/-> util ->/-> util\/system ->/' test/lint/lint-circular-dependencies.sh sed -i 's/src\/util\.cpp/src\/util\/system\.cpp/g' test/lint/lint-format-strings.py test/lint/lint-locale-dependence.sh sed -i 's/src\/utilmoneystr\.cpp/src\/util\/moneystr\.cpp/g' test/lint/lint-locale-dependence.sh sed -i 's/src\/utilstrencodings\.\(h\|cpp\)/src\/util\/strencodings\.\1/g' test/lint/lint-locale-dependence.sh sed -i 's/src\\utilstrencodings\.cpp/src\\util\\strencodings\.cpp/' build_msvc/libbitcoinconsensus/libbitcoinconsensus.vcxproj -END VERIFY SCRIPT-
2018-10-09Merge #13115: addrman: Add Clang thread safety annotations for variables ↵MarcoFalke
guarded by CAddrMan.cs 3e9f6c821b Add missing locks and locking annotations for CAddrMan (practicalswift) Pull request description: * Add Clang thread safety annotations for variables guarded by `CAddrMan.cs ` * Add missing `CAddrMan.cs ` locks Tree-SHA512: c78d56d56eb63a4469333c04c95317545a8f97d5e3a36ff2699ee4a91a6433d416221eed6c5ff168e1e31f6936c2ae101a4c60b635f2b2309f40e3d66a727322
2018-10-08Add missing locks and locking annotations for CAddrManpracticalswift
2018-07-27Update copyright headers to 2018DrahtBot
2018-07-24scripted-diff: Remove trailing whitespacesJoão Barbosa
-BEGIN VERIFY SCRIPT- sed --in-place'' --regexp-extended 's/[[:space:]]+$//g' $(git grep -I --files-with-matches --extended-regexp '[[:space:]]+$' -- src test ':!*.svg' ':!src/crypto/sha256_sse4*' ':!src/leveldb' ':!src/qt/locale' ':!src/secp256k1' ':!src/univalue') -END VERIFY SCRIPT-
2018-04-10Merge #12731: Support serialization as another type without castingWladimir J. van der Laan
818dc74 Support serialization as another type without casting (Pieter Wuille) Pull request description: This adds a `READWRITEAS(type, obj)` macro which serializes `obj` as if it were converted to `const type&` when `const`, and to `type&` when non-`const`. No actual cast is involved, so this only works when this conversion can be done automatically. This makes it usable in serialization code that uses a single implementation for both serialization and deserializing, which doesn't know the constness of the object involved. This is a redo of #12712, using a slightly different interface. Tree-SHA512: 262f0257284ff99b5ffaec9b997c194e221522ba35c3ac8eaa9bb344449d7ea0a314de254dc77449fa7aaa600f8cd9a24da65aade8c1ec6aa80c6e9a7bba5ca7
2018-03-21Fix typospracticalswift
2018-03-20Support serialization as another type without castingPieter Wuille
This adds a READWRITEAS(type, obj) macro which serializes obj as if it were casted to (const type&) when const, and to (type&) when non-const. This makes it usable in serialization code that uses a single implementation for both serialization and deserializing, which doesn't know the constness of the object involved.
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.
2018-02-07Merge #10498: Use static_cast instead of C-style casts for non-fundamental typesMarcoFalke
9ad6746ccd Use static_cast instead of C-style casts for non-fundamental types (practicalswift) Pull request description: A C-style cast is equivalent to try casting in the following order: 1. `const_cast(...)` 2. `static_cast(...)` 3. `const_cast(static_cast(...))` 4. `reinterpret_cast(...)` 5. `const_cast(reinterpret_cast(...))` By using `static_cast<T>(...)` explicitly we avoid the possibility of an unintentional and dangerous `reinterpret_cast`. Furthermore `static_cast<T>(...)` allows for easier grepping of casts. For a more thorough discussion, see ["ES.49: If you must use a cast, use a named cast"](https://isocpp.github.io/CppCoreGuidelines/CppCoreGuidelines#es49-if-you-must-use-a-cast-use-a-named-cast) in the C++ Core Guidelines (Stroustrup & Sutter). Tree-SHA512: bd6349b7ea157da93a47b8cf238932af5dff84731374ccfd69b9f732fabdad1f9b1cdfca67497040f14eaa85346391404f4c0495e22c467f26ca883cd2de4d3c
2018-01-03Increment MIT Licence copyright header year on files modified in 2017Akira Takizawa
2017-11-30Merge #10493: Use range-based for loops (C++11) when looping over map elementsMarcoFalke
680bc2cbb Use range-based for loops (C++11) when looping over map elements (practicalswift) Pull request description: Before this commit: ```c++ for (std::map<T1, T2>::iterator x = y.begin(); x != y.end(); ++x) { T1 z = (*x).first; … } ``` After this commit: ```c++ for (auto& x : y) { T1 z = x.first; … } ``` Tree-SHA512: 954b136b7f5e6df09f39248a6b530fd9baa9ab59d7c2c7eb369fd4afbb591b7a52c92ee25f87f1745f47b41d6828b7abfd395b43daf84a55b4e6a3d45015e3a0
2017-11-16scripted-diff: Replace #include "" with #include <> (ryanofsky)MeshCollider
-BEGIN VERIFY SCRIPT- for f in \ src/*.cpp \ src/*.h \ src/bench/*.cpp \ src/bench/*.h \ src/compat/*.cpp \ src/compat/*.h \ src/consensus/*.cpp \ src/consensus/*.h \ src/crypto/*.cpp \ src/crypto/*.h \ src/crypto/ctaes/*.h \ src/policy/*.cpp \ src/policy/*.h \ src/primitives/*.cpp \ src/primitives/*.h \ src/qt/*.cpp \ src/qt/*.h \ src/qt/test/*.cpp \ src/qt/test/*.h \ src/rpc/*.cpp \ src/rpc/*.h \ src/script/*.cpp \ src/script/*.h \ src/support/*.cpp \ src/support/*.h \ src/support/allocators/*.h \ src/test/*.cpp \ src/test/*.h \ src/wallet/*.cpp \ src/wallet/*.h \ src/wallet/test/*.cpp \ src/wallet/test/*.h \ src/zmq/*.cpp \ src/zmq/*.h do base=${f%/*}/ relbase=${base#src/} sed -i "s:#include \"\(.*\)\"\(.*\):if test -e \$base'\\1'; then echo \"#include <\"\$relbase\"\\1>\\2\"; else echo \"#include <\\1>\\2\"; fi:e" $f done -END VERIFY SCRIPT-
2017-10-31addrman: Add missing lock in Clear() (CAddrMan)practicalswift
The variable vRandom is guarded by the mutex cs.
2017-10-09Use range-based for loops (C++11) when looping over map elementspracticalswift
Before this commit: for (std::map<T1, T2>::iterator x = y.begin(); x != y.end(); ++x) { } After this commit: for (auto& x : y) { }
2017-09-22Use static_cast instead of C-style casts for non-fundamental typespracticalswift
A C-style cast is equivalent to try casting in the following order: 1. const_cast(...) 2. static_cast(...) 3. const_cast(static_cast(...)) 4. reinterpret_cast(...) 5. const_cast(reinterpret_cast(...)) By using static_cast<T>(...) explicitly we avoid the possibility of an unintentional and dangerous reinterpret_cast. Furthermore static_cast<T>(...) allows for easier grepping of casts.
2017-09-05when clearing addrman clear mapInfo and mapAddrGregory Sanders
2017-08-07scripted-diff: Use the C++11 keyword nullptr to denote the pointer literal ↵practicalswift
instead of the macro NULL -BEGIN VERIFY SCRIPT- sed -i 's/\<NULL\>/nullptr/g' src/*.cpp src/*.h src/*/*.cpp src/*/*.h src/qt/*/*.cpp src/qt/*/*.h src/wallet/*/*.cpp src/wallet/*/*.h src/support/allocators/*.h sed -i 's/Prefer nullptr, otherwise SAFECOOKIE./Prefer NULL, otherwise SAFECOOKIE./g' src/torcontrol.cpp sed -i 's/tor: Using nullptr authentication/tor: Using NULL authentication/g' src/torcontrol.cpp sed -i 's/METHODS=nullptr/METHODS=NULL/g' src/test/torcontrol_tests.cpp src/torcontrol.cpp sed -i 's/nullptr certificates/NULL certificates/g' src/qt/paymentserver.cpp sed -i 's/"nullptr"/"NULL"/g' src/torcontrol.cpp src/test/torcontrol_tests.cpp -END VERIFY SCRIPT-
2017-04-24Merge #9792: FastRandomContext improvements and switch to ChaCha20Wladimir J. van der Laan
4fd2d2f Add a FastRandomContext::randrange and use it (Pieter Wuille) 1632922 Switch FastRandomContext to ChaCha20 (Pieter Wuille) e04326f Add ChaCha20 (Pieter Wuille) 663fbae FastRandom benchmark (Pieter Wuille) c21cbe6 Introduce FastRandomContext::randbool() (Pieter Wuille) Tree-SHA512: 7fff61e3f6d6dc6ac846ca643d877b377db609646dd401a0e8f50b052c6b9bcd2f5fc34de6bbf28f04afd1724f6279ee163ead5f37d724fb782a00239f35db1d
2017-04-01Change LogAcceptCategory to use uint32_t rather than sets of strings.Gregory Maxwell
This changes the logging categories to boolean flags instead of strings. This simplifies the acceptance testing by avoiding accessing a scoped static thread local pointer to a thread local set of strings. It eliminates the only use of boost::thread_specific_ptr outside of lockorder debugging. This change allows log entries to be directed to multiple categories and makes it easy to change the logging flags at runtime (e.g. via an RPC, though that isn't done by this commit.) It also eliminates the fDebug global. Configuration of unknown logging categories now produces a warning.
2017-03-29Switch FastRandomContext to ChaCha20Pieter Wuille
2016-12-31Increment MIT Licence copyright header year on files modified in 2016isle2983
Edited via: $ contrib/devtools/copyright_header.py update .
2016-11-26Remove double brackets in addrmanMatt Corallo
2016-11-26Fix AddrMan lockingMatt Corallo
2016-11-07Get rid of nType and nVersionPieter Wuille
Remove the nType and nVersion as parameters to all serialization methods and functions. There is only one place where it's read and has an impact (in CAddress), and even there it does not impact any of the recursively invoked serializers. Instead, the few places that need nType or nVersion are changed to read it directly from the stream object, through GetType() and GetVersion() methods which are added to all stream classes.
2016-11-07Make GetSerializeSize a wrapper on top of CSizeComputerPieter Wuille
Given that in default GetSerializeSize implementations created by ADD_SERIALIZE_METHODS we're already using CSizeComputer(), get rid of the specialized GetSerializeSize methods everywhere, and just use CSizeComputer. This removes a lot of code which isn't actually used anywhere. For CCompactSize and CVarInt this actually removes a more efficient size computing algorithm, which is brought back in a later commit.
2016-10-17Kill insecure_random and associated global stateWladimir J. van der Laan
There are only a few uses of `insecure_random` outside the tests. This PR replaces uses of insecure_random (and its accompanying global state) in the core code with an FastRandomContext that is automatically seeded on creation. This is meant to be used for inner loops. The FastRandomContext can be in the outer scope, or the class itself, then rand32() is used inside the loop. Useful e.g. for pushing addresses in CNode or the fee rounding, or randomization for coin selection. As a context is created per purpose, thus it gets rid of cross-thread unprotected shared usage of a single set of globals, this should also get rid of the potential race conditions. - I'd say TxMempool::check is not called enough to warrant using a special fast random context, this is switched to GetRand() (open for discussion...) - The use of `insecure_rand` in ConnectThroughProxy has been replaced by an atomic integer counter. The only goal here is to have a different credentials pair for each connection to go on a different Tor circuit, it does not need to be random nor unpredictable. - To avoid having a FastRandomContext on every CNode, the context is passed into PushAddress as appropriate. There remains an insecure_random for test usage in `test_random.h`.
2016-07-31net: narrow include scope after moving to netaddressCory Fields
Net functionality is no longer needed for CAddress/CAddrman/etc. now that CNetAddr/CService/CSubNet are dumb storage classes.
2016-06-13Introduce enum ServiceFlags for service flagsPieter Wuille
2016-06-13Keep addrman's nService bits consistent with outbound observationsPieter Wuille
2016-05-26Do not increment nAttempts by more than one for every Good connection.Gregory Maxwell
This slows the increase of the nAttempts in addrman while partitioned, even if the node hasn't yet noticed the partitioning.
2016-05-26Avoid counting failed connect attempts when probably offline.Gregory Maxwell
If a node is offline failed outbound connection attempts will crank up the addrman counter and effectively blow away our state. This change reduces the problem by only counting attempts made while the node believes it has outbound connections to at least two netgroups. Connect and addnode connections are also not counted, as there is no reason to unequally penalize them for their more frequent connections -- though there should be no real effect from this unless their addnode configureation is later removed. Wasteful repeated connection attempts while only a few connections are up are avoided via nLastTry. This is still somewhat incomplete protection because our outbound peers could be down but not timed out or might all be on 'local' networks (although the requirement for multiple netgroups helps).
2016-04-24CAddrMan::Deserialize handle corrupt serializations better.Patrick Strateman
2016-01-28Merge #7212: Adds unittests for CAddrMan and CAddrinfo, removes source of ↵Wladimir J. van der Laan
non-determinism. 40c87b6 Increase test coverage for addrman and addrinfo (Ethan Heilman)
2016-01-27Increase test coverage for addrman and addrinfoEthan Heilman
Adds several unittests for CAddrMan and CAddrInfo. Increases the accuracy of addrman tests. Removes non-determinism in tests by overriding the random number generator. Extracts testing code from addrman class to test class.
2016-01-05Add missing copyright headersMarcoFalke
2015-09-24Creates unittests for addrman, makes addrman testable.EthanHeilman
Adds several unittests for addrman to verify it works as expected. Makes small modifications to addrman to allow deterministic and targeted tests.
2015-08-10typofixes (found by misspell_fixer)Veres Lajos
2015-06-15make CAddrMan::size() return the correct type of size_tPhilip Kaufmann
2015-05-14Comment edits and cleanupBitcoinPRReadingGroup
Original PR here: https://github.com/bitcoin/bitcoin/pull/6044
2015-05-14addrman: update commentsPavel Vasin
nUnkBias was removed in https://github.com/bitcoin/bitcoin/pull/5941
2015-05-02Non-grammatical language improvementsLuke Dashjr
2015-05-01Bugfix: Grammar fixesCorinne Dashjr
2015-04-19nLastTry is only used for addrman entriesPieter Wuille
No need to define it for every CAddress, as it's memory only anyway.
2015-03-23Scale up addrmanPieter Wuille
This change was suggested as Countermeasure 6 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.
2015-03-23Always use a 50% chance to choose between tried and new entriesPieter Wuille
This change was suggested as Countermeasure 2 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.
2015-03-23Make addrman's bucket placement deterministic.Pieter Wuille
Give each address a single fixed location in the new and tried tables, which become simple fixed-size arrays instead of sets and vectors. This prevents attackers from having an advantages by inserting an address multiple times. This change was suggested as Countermeasure 1 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. It is also more efficient.
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