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2020-12-17fuzz: replace CNode code with fuzz/util.h::ConsumeNode()Jon Atack
2020-12-15Merge #20560: fuzz: Link all targets onceMarcoFalke
fa13e1b0c52738492310b6b421d8e38cb04da5b1 build: Add option --enable-danger-fuzz-link-all (MarcoFalke) 44444ba759480237172d83f42374c5c29c76eda0 fuzz: Link all targets once (MarcoFalke) Pull request description: Currently the linker is invoked more than 150 times when compiling with `--enable-fuzz`. This is problematic for several reasons: * It wastes disk space north of 20 GB, as all libraries and sanitizers are linked more than 150 times * It wastes CPU time, as the link step can practically not be cached (similar to ccache for object files) * It makes it a blocker to compile the fuzz tests by default for non-fuzz builds #19388, for the aforementioned reasons * The build file is several thousand lines of code, without doing anything meaningful except listing each fuzz target in a highly verbose manner * It makes writing new fuzz tests unnecessarily hard, as build system knowledge is required; Compare that to boost unit tests, which can be added by simply editing an existing cpp file * It encourages fuzz tests that re-use the `buffer` or assume the `buffer` to be concatenations of seeds, which increases complexity of seeds and complexity for the fuzz engine to explore; Thus reducing the effectiveness of the affected fuzz targets Fixes #20088 ACKs for top commit: practicalswift: Tested ACK fa13e1b0c52738492310b6b421d8e38cb04da5b1 sipa: ACK fa13e1b0c52738492310b6b421d8e38cb04da5b1. Reviewed the code changes, and tested the 3 different test_runner.py modes (run once, merge, generate). I also tested building with the new --enable-danger-fuzz-link-all Tree-SHA512: 962ab33269ebd51810924c51266ecc62edd6ddf2fcd9a8c359ed906766f58c3f73c223f8d3cc49f2c60f0053f65e8bdd86ce9c19e673f8c2b3cd676e913f2642
2020-12-15Merge #20437: fuzz: Avoid time-based "non-determinism" in fuzzing harnesses ↵MarcoFalke
by using mocked GetTime() 8c09c0c1d18885ef94f79b3f2d073f43269bc95d fuzz: Avoid time-based "non-determinism" in fuzzing harnesses by using mocked GetTime() (practicalswift) Pull request description: Avoid time-based "non-determinism" in fuzzing harnesses by using mocked `GetTime()`. Prior to this commit the fuzzing harnesses `banman`, `connman`, `net` and `rbf` had time-based "non-determinism". `addrman` is fixed in #20425. `process_message` and `process_messages` are left to fix: simply using mock time is not enough for them due to interaction with `IsInitialBlockDownload()`. See [`doc/fuzzing.md`](https://github.com/bitcoin/bitcoin/blob/master/doc/fuzzing.md) for information on how to fuzz Bitcoin Core. Don't forget to contribute any coverage increasing inputs you find to the [Bitcoin Core fuzzing corpus repo](https://github.com/bitcoin-core/qa-assets). Happy fuzzing :) ACKs for top commit: MarcoFalke: review ACK 8c09c0c1d18885ef94f79b3f2d073f43269bc95d practicalswift: > review ACK [8c09c0c](https://github.com/bitcoin/bitcoin/commit/8c09c0c1d18885ef94f79b3f2d073f43269bc95d) Tree-SHA512: 32dfbead3dfd18cf4ff56dc2ea341aa977441b4e19a54879cf54fa5820c7e2b14b92c7e238d32fd785654f3b28cc82826ae66c03e94c292633c63c41196ba9a8
2020-12-10fuzz: Link all targets onceMarcoFalke
2020-12-04net: Assume that SetCommonVersion is called at most once per peerMarcoFalke
2020-12-01fuzz: Avoid time-based "non-determinism" in fuzzing harnesses by using ↵practicalswift
mocked GetTime()
2020-11-20net: Treat raw message bytes as uint8_tMarcoFalke
2020-11-20Merge #20056: net: Use Span in ReceiveMsgBytesWladimir J. van der Laan
fa5ed3b4ca609426b2622cad235e107d33db7b30 net: Use Span in ReceiveMsgBytes (MarcoFalke) Pull request description: Pass a data pointer and a size as span in `ReceiveMsgBytes` to get the benefits of a span ACKs for top commit: jonatack: ACK fa5ed3b4ca609426b2622cad235e107d33db7b30 code review, rebased to current master 12a1c3ad1a43634, debug build, unit tests, ran bitcoind/-netinfo/getpeerinfo theStack: ACK fa5ed3b4ca609426b2622cad235e107d33db7b30 Tree-SHA512: 89bf111323148d6e6e50185ad20ab39f73ab3a58a27e46319e3a08bcf5dcf9d6aa84faff0fd6afb90cb892ac2f557a237c144560986063bc736a69ace353ab9d
2020-11-12fuzz: Use ConsumeRandomLengthBitVector(...) in src/test/fuzz/connman and ↵practicalswift
src/test/fuzz/net
2020-10-03test: Add tests for CNode::ConnectedThroughNetworkHennadii Stepanov
2020-10-02net: Use Span in ReceiveMsgBytesMarcoFalke
2020-09-07p2p: Unify Send and Receive protocol versionsHennadii Stepanov
There is no change in behavior on the P2P network.
2020-09-02[refactor] Restructure logic to check for addr relay.Amiti Uttarwar
We previously identified if we relay addresses to the connection by checking for the existence of the m_addr_known data structure. With this commit, we answer this question based on the connection type. IsAddrRelayPeer() checked for the existence of the m_addr_known
2020-09-02scripted-diff: Rename `OUTBOUND` ConnectionType to `OUTBOUND_FULL_RELAY`Amiti Uttarwar
-BEGIN VERIFY SCRIPT- sed -i 's/OUTBOUND, /OUTBOUND_FULL_RELAY, /g' src/net.h sed -i 's/ConnectionType::OUTBOUND/ConnectionType::OUTBOUND_FULL_RELAY/g' src/test/net_tests.cpp src/test/fuzz/process_message.cpp src/test/fuzz/process_messages.cpp src/net.cpp src/test/denialofservice_tests.cpp src/net.h src/test/fuzz/net.cpp -END VERIFY SCRIPT-
2020-08-27tests: Add fuzzing harness for CNodepracticalswift
generated by cgit v1.2.3 (git 2.26.2) at 2024-10-11 09:26:39 +0000