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path: root/src/test/fuzz/p2p_transport_serialization.cpp
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2023-11-23refactor: P2P transport without serialize version and typeMarcoFalke
2023-11-20refactor: NetMsg::Make() without nVersionMarcoFalke
The nVersion field is unused, so remove it. This is also required for future commits. Also, add PushMessage aliases in PeerManagerImpl to make calling code less verbose. Co-Authored-By: Anthony Towns <aj@erisian.com.au>
2023-10-02net: expose transport types/session IDs of connections in RPC and logsPieter Wuille
Co-authored-by: Dhruv Mehta <856960+dhruv@users.noreply.github.com>
2023-09-10net: do not use send buffer to store/cache garbagePieter Wuille
Before this commit the V2Transport::m_send_buffer is used to store the garbage: * During MAYBE_V1 state, it's there despite not being sent. * During AWAITING_KEY state, while it is being sent. * At the end of the AWAITING_KEY state it cannot be wiped as it's still needed to compute the garbage authentication packet. Change this by introducing a separate m_send_garbage field, taking over the first and last role listed above. This means the garbage is only in the send buffer when it's actually being sent, removing a few special cases related to this.
2023-09-07net: make V2Transport send uniformly random number garbage bytesPieter Wuille
2023-09-07net: make V2Transport auto-detect incoming V1 and fall back to itPieter Wuille
2023-09-07net: add V2Transport class with subset of BIP324 functionalityPieter Wuille
This introduces a V2Transport with a basic subset of BIP324 functionality: * no ability to send garbage (but receiving is supported) * no ability to send decoy packets (but receiving them is supported) * no support for short message id encoding (neither encoding or decoding) * no waiting until 12 non-V1 bytes have been received * (and thus) no detection of V1 connections on the responder side (on the sender side, detecting V1 is not supported either, but that needs to be dealt with at a higher layer, by reconnecting)
2023-09-07net: add have_next_message argument to Transport::GetBytesToSend()Pieter Wuille
Before this commit, there are only two possibly outcomes for the "more" prediction in Transport::GetBytesToSend(): * true: the transport itself has more to send, so the answer is certainly yes. * false: the transport has nothing further to send, but if vSendMsg has more message(s) left, that still will result in more wire bytes after the next SetMessageToSend(). For the BIP324 v2 transport, there will arguably be a third state: * definitely not: the transport has nothing further to send, but even if vSendMsg has more messages left, they can't be sent (right now). This happens before the handshake is complete. To implement this, we move the entire decision logic to the Transport, by adding a boolean to GetBytesToSend(), called have_next_message, which informs the transport whether more messages are available. The return values are still true and false, but they mean "definitely yes" and "definitely no", rather than "yes" and "maybe".
2023-08-23refactor: make Transport::ReceivedBytes just return success/failPieter Wuille
2023-08-23fuzz: add bidirectional fragmented transport testPieter Wuille
This adds a simulation test, with two V1Transport objects, which send messages to each other, with sending and receiving fragmented into multiple pieces that may be interleaved. It primarily verifies that the sending and receiving side are compatible with each other, plus a few sanity checks.
2023-08-23net: make V1Transport implicitly use current chainparamsPieter Wuille
The rest of net.cpp already uses Params() to determine chainparams in many places (and even V1Transport itself does so in some places). Since the only chainparams dependency is through the message start characters, just store those directly in the transport.
2023-08-23net: abstract sending side of transport serialization furtherPieter Wuille
This makes the sending side of P2P transports mirror the receiver side: caller provides message (consisting of type and payload) to be sent, and then asks what bytes must be sent. Once the message has been fully sent, a new message can be provided. This removes the assumption that P2P serialization of messages follows a strict structure of header (a function of type and payload), followed by (unmodified) payload, and instead lets transports decide the structure themselves. It also removes the assumption that a message must always be sent at once, or that no bytes are even sent on the wire when there is no message. This opens the door for supporting traffic shaping mechanisms in the future.
2023-08-23refactor: rename Transport class receive functionsPieter Wuille
Now that the Transport class deals with both the sending and receiving side of things, make the receive side have function names that clearly indicate they're about receiving. * Transport::Read() -> Transport::ReceivedBytes() * Transport::Complete() -> Transport::ReceivedMessageComplete() * Transport::GetMessage() -> Transport::GetReceivedMessage() * Transport::SetVersion() -> Transport::SetReceiveVersion() Further, also update the comments on these functions to (among others) remove the "deserialization" terminology. That term is better reserved for just the serialization/deserialization between objects and bytes (see serialize.h), and not the conversion from/to wire bytes as performed by the Transport.
2023-08-23refactor: merge transport serializer and deserializer into Transport classPieter Wuille
This allows state that is shared between both directions to be encapsulated into a single object. Specifically the v2 transport protocol introduced by BIP324 has sending state (the encryption keys) that depends on received messages (the DH key exchange). Having a single object for both means it can hide logic from callers related to that key exchange and other interactions.
2023-07-13scripted-diff: Use new FUZZ_TARGET macro everywhereMarcoFalke
-BEGIN VERIFY SCRIPT- ren() { sed --regexp-extended -i "s|$1|$2|g" $(git grep -l --extended-regexp "$1"); } # Replace FUZZ_TARGET_INIT ren 'FUZZ_TARGET_INIT\((.+), (.+)\)' 'FUZZ_TARGET(\1, .init = \2)' # Delete unused FUZZ_TARGET_INIT sed -i -e '37,39d' src/test/fuzz/fuzz.h -END VERIFY SCRIPT-
2023-06-27Use only Span{} constructor for byte-like types where possibleMarcoFalke
This removes bloat that is not needed.
2023-05-09refactor: Replace string chain name constants with ChainTypesTheCharlatan
This commit effectively moves the definition of these constants out of the chainparamsbase to their own file. Using the ChainType enums provides better type safety compared to passing around strings. The commit is part of an ongoing effort to decouple the libbitcoinkernel library from the ArgsManager and other functionality that should not be part of the kernel library.
2023-01-03refactor: use braced init for integer constants instead of c style castsPasta
2022-12-24scripted-diff: Bump copyright headersHennadii Stepanov
-BEGIN VERIFY SCRIPT- ./contrib/devtools/copyright_header.py update ./ -END VERIFY SCRIPT- Commits of previous years: - 2021: f47dda2c58b5d8d623e0e7ff4e74bc352dfa83d7 - 2020: fa0074e2d82928016a43ca408717154a1c70a4db - 2019: aaaaad6ac95b402fe18d019d67897ced6b316ee0
2022-01-15scripted-diff: Rename CNetMessage::m_command with CNetMessage::m_typeHennadii Stepanov
-BEGIN VERIFY SCRIPT- sed -i 's/std::string m_command;/std::string m_type;/g' ./src/net.h sed -i 's/* command and size./* type and size./g' ./src/net.h sed -i 's/msg.m_command/msg.m_type/g' ./src/net.cpp ./src/net_processing.cpp ./src/test/fuzz/p2p_transport_serialization.cpp -END VERIFY SCRIPT-
2021-12-30scripted-diff: Bump copyright headersHennadii Stepanov
-BEGIN VERIFY SCRIPT- ./contrib/devtools/copyright_header.py update ./ -END VERIFY SCRIPT- Commits of previous years: * 2020: fa0074e2d82928016a43ca408717154a1c70a4db * 2019: aaaaad6ac95b402fe18d019d67897ced6b316ee0
2021-08-19[net] Don't return an optional from TransportDeserializer::GetMessage()Troy Giorshev
Also, access mapRecvBytesPerMsgCmd with `at()` not `find()`. This throws an error if COMMAND_OTHER doesn't exist, which should never happen. `find()` instead just accessed the last element, which could make debugging more difficult. Resolves review comments from PR19107: - https://github.com/bitcoin/bitcoin/pull/19107#discussion_r478718436 - https://github.com/bitcoin/bitcoin/pull/19107#discussion_r478714497
2021-05-25[fuzz] Occasional valid magic bytes for transport serialization testDhruv Mehta
Before commit: Unable to deserialize : 0% Wrong message start : ~45.62% Header too large : ~14.5% Wrong checksum : ~38.13% Invalid message type : ~1.78% 304820 NEW cov: 1440 ft: 4452 corp: 92/12551b lim: 2237 exec/s: 3386 rss: 486Mb L: 47/1111 MS: 1 ChangeByte- 1416181 REDUCE cov: 1442 ft: 5681 corp: 125/59Kb lim: 4096 exec/s: 3522 rss: 535Mb L: 2164/4049 MS: 1 EraseBytes- After commit: Unable to deserialize : 0% Wrong message start : ~39.6% Header too large : ~30.85% Wrong checksum : ~25.54% Invalid message type : ~4.01% 302684 NEW cov: 1454 ft: 3936 corp: 84/7056b lim: 2424 exec/s: 4146 rss: 477Mb L: 65/1108 MS: 3 CopyPart-CrossOver-CMP- DE: "\x0e\x00\x00\x00"- 1383925 REDUCE cov: 1454 ft: 4828 corp: 102/14573b lim: 4096 exec/s: 3954 rss: 534Mb L: 116/4050 MS: 2 EraseBytes-ChangeByte-
2021-05-25[fuzz] Occasional valid checksum for transport serialization fuzz testDhruv Mehta
Before commit: Unable to deserialize: 0% Wrong message start : ~1.27% Header too large : ~0.5% Wrong checksum : ~67.99% Invalid message type : ~30.1% 303389 NEW cov: 1202 ft: 8382 corp: 157/382Kb lim: 68189 exec/s: 1451 rss: 447Mb L: 1386/65459 MS: 1 CopyPart- 1428759 REDUCE cov: 1202 ft: 8512 corp: 169/389Kb lim: 78749 exec/s: 1528 rss: 463Mb L: 1627/60488 MS: 1 EraseBytes- After commit(new seeds; old seeds invalidated): Unable to deserialize: 0% Wrong message start : ~45.62% Header too large : ~14.5% Wrong checksum : ~38.13% Invalid message type : ~1.78% 304820 NEW cov: 1440 ft: 4452 corp: 92/12551b lim: 2237 exec/s: 3386 rss: 486Mb L: 47/1111 MS: 1 ChangeByte- 1416181 REDUCE cov: 1442 ft: 5681 corp: 125/59Kb lim: 4096 exec/s: 3522 rss: 535Mb L: 2164/4049 MS: 1 EraseBytes-
2021-05-25[fuzz] Add serialization to deserialization testDhruv Mehta
Before commit: 306853 REDUCE cov: 798 ft: 5820 corp: 150/375Kb lim: 68333 exec/s: 1382 rss: 461Mb L: 254/63171 MS: 1 EraseBytes- 1453105 REDUCE cov: 798 ft: 5820 corp: 150/369Kb lim: 79613 exec/s: 1467 rss: 461Mb L: 6027/60873 MS: 1 EraseBytes- After commit: 303389 NEW cov: 1202 ft: 8382 corp: 157/382Kb lim: 68189 exec/s: 1451 rss: 447Mb L: 1386/65459 MS: 1 CopyPart- 1428759 REDUCE cov: 1202 ft: 8512 corp: 169/389Kb lim: 78749 exec/s: 1528 rss: 463Mb L: 1627/60488 MS: 1 EraseBytes-
generated by cgit v1.2.3 (git 2.26.2) at 2024-10-31 01:35:55 +0000