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Gossiping addresses to peers is the responsibility of net processing.
Change AdvertiseLocal() in net to just return an (optional) address
for net processing to advertise. Update function name to reflect
new responsibility.
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-BEGIN VERIFY SCRIPT-
sed -i 's/fPingQueued/m_ping_queued/g' src/net_processing.cpp
sed -i 's/nMinPingUsecTime/m_min_ping_time/g' src/net.* src/net_processing.cpp src/test/net_tests.cpp
sed -i 's/nPingNonceSent/m_ping_nonce_sent/g' src/net_processing.cpp
sed -i 's/nPingUsecTime/m_last_ping_time/g' src/net.*
-END VERIFY SCRIPT-
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Moves the logic to prevent running inactivity checks until
the peer has been connected for -peertimeout time into its
own function. This will be reused by net_processing later.
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and to allow the compiler to warn if uninitialized in the ctor
or omitted in the caller.
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Add -fixedseeds arg.
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and add fSuccessfullyConnected doxygen documentation
to clarify that it is set to true on VERACK
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bff7c66e67aa2f18ef70139338643656a54444fe Add documentation to contrib folder (Troy Giorshev)
381f77be858d7417209b6de0b7cd23cb7eb99261 Add Message Capture Test (Troy Giorshev)
e4f378a505922c0f544b4cfbfdb169e884e02be9 Add capture parser (Troy Giorshev)
4d1a582549bc982d55e24585b0ba06f92f21e9da Call CaptureMessage at appropriate locations (Troy Giorshev)
f2a77ff97bec09dd5fcc043d8659d8ec5dfb87c2 Add CaptureMessage (Troy Giorshev)
dbf779d5deb04f55c6e8493ce4e12ed4628638f3 Clean PushMessage and ProcessMessages (Troy Giorshev)
Pull request description:
This PR introduces per-peer message capture into Bitcoin Core. 📓
## Purpose
The purpose and scope of this feature is intentionally limited. It answers a question anyone new to Bitcoin's P2P protocol has had: "Can I see what messages my node is sending and receiving?".
## Functionality
When a new debug-only command line argument `capturemessages` is set, any message that the node receives or sends is captured. The capture occurs in the MessageHandler thread. When receiving a message, it is captured as soon as the MessageHandler thread takes the message off of the vProcessMsg queue. When sending, the message is captured just before the message is pushed onto the vSendMsg queue.
The message capture is as minimal as possible to reduce the performance impact on the node. Messages are captured to a new `message_capture` folder in the datadir. Each node has their own subfolder named with their IP address and port. Inside, received and sent messages are captured into two binary files, msgs_recv.dat and msgs_sent.dat, like so:
```
message_capture/203.0.113.7:56072/msgs_recv.dat
message_capture/203.0.113.7:56072/msgs_sent.dat
```
Because the messages are raw binary dumps, included in this PR is a Python parsing tool to convert the binary files into human-readable JSON. This script has been placed on its own and out of the way in the new `contrib/message-capture` folder. Its usage is simple and easily discovered by the autogenerated `-h` option.
## Future Maintenance
I sympathize greatly with anyone who says "the best code is no code".
The future maintenance of this feature will be minimal. The logic to deserialize the payload of the p2p messages exists in our testing framework. As long as our testing framework works, so will this tool.
Additionally, I hope that the simplicity of this tool will mean that it gets used frequently, so that problems will be discovered and solved when they are small.
## FAQ
"Why not just use Wireshark"
Yes, Wireshark has the ability to filter and decode Bitcoin messages. However, the purpose of the message capture added in this PR is to assist with debugging, primarily for new developers looking to improve their knowledge of the Bitcoin Protocol. This drives the design in a different direction than Wireshark, in two different ways. First, this tool must be convenient and simple to use. Using an external tool, like Wireshark, requires setup and interpretation of the results. To a new user who doesn't necessarily know what to expect, this is unnecessary difficulty. This tool, on the other hand, "just works". Turn on the command line flag, run your node, run the script, read the JSON. Second, because this tool is being used for debugging, we want it to be as close to the true behavior of the node as possible. A lot can happen in the SocketHandler thread that would be missed by Wireshark.
Additionally, if we are to use Wireshark, we are at the mercy of whoever it maintaining the protocol in Wireshark, both as to it being accurate and recent. As can be seen by the **many** previous attempts to include Bitcoin in Wireshark (google "bitcoin dissector") this is easier said than done.
Lastly, I truly believe that this tool will be used significantly more by being included in the codebase. It's just that much more discoverable.
ACKs for top commit:
MarcoFalke:
re-ACK bff7c66e67aa2f18ef70139338643656a54444fe only some minor changes: 👚
jnewbery:
utACK bff7c66e67aa2f18ef70139338643656a54444fe
theStack:
re-ACK bff7c66e67aa2f18ef70139338643656a54444fe
Tree-SHA512: e59e3160422269221f70f98720b47842775781c247c064071d546c24fa7a35a0e5534e8baa4b4591a750d7eb16de6b4ecf54cbee6d193b261f4f104e28c15f47
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79a2576af1e499102943aa4e1d98994ee8a9c6b5 doc: update ConnectionType Doxygen documentation (Jon Atack)
f3153dc08fa16aa3bbca52f67833e5c9fbe8e095 gui: improve markup handling of connection type tooltip (Jon Atack)
4f0961573318271d4d0737b99057f54c188540f7 gui: return inbound {full, block} relay type in peer details (Jon Atack)
Pull request description:
Three follow-ups to #163:
- return relay type for inbound peers
- improve markup handling in the tooltip to facilitate translations
- update ConnectionType doxygen documentation
ACKs for top commit:
hebasto:
re-ACK 79a2576af1e499102943aa4e1d98994ee8a9c6b5, only suggested changes since my [previous](https://github.com/bitcoin-core/gui/pull/180#pullrequestreview-564894781) review.
jarolrod:
ACK 79a2576af1e499102943aa4e1d98994ee8a9c6b5, tested on macOS 11.1 with Qt 5.15.2
laanwj:
Code review ACK 79a2576af1e499102943aa4e1d98994ee8a9c6b5
Tree-SHA512: 4a8d8f8bfbaefd68e8d1bf3b20d29e4a8e8cfe97b2f8d59d3a4c338a50b61de0a67d97bd8646c04bd5df5a9679c4954b9b46e7cba24bb89f4d0e44e94cf9d66c
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This commit adds the CaptureMessage function. This will later be called
when any message is sent or received. The capture directory is fixed,
in a new folder "message_capture" in the datadir. Peers will then have
their own subfolders, named with their IP address and port, replacing
colons with underscores to keep compatibility with Windows. Inside,
received and sent messages will be captured into two binary files,
msgs_recv.dat and msgs_sent.dat.
e.g.
message_capture/203.0.113.7_56072/msgs_recv.dat
message_capture/203.0.113.7_56072/msgs_sent.dat
The format has been designed as to result in a minimal performance
impact. A parsing script is added in a later commit.
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Also clean up and better comment the function. InactivityChecks() uses a
mixture of (non-mockable) system time and mockable time. Make sure
that's well documented.
Despite being marked as const in CConnman before this commit, the
function did mutate the state of the passed in CNode, which is contained
in vNodes, which is a member of CConnman. To make the function truly
const in CConnman and all its data, instead make InactivityChecks() a
pure function, return whether the peer should be disconnected, and let
the calling function (SocketHandler()) update the CNode object. Also
make the CNode& argument const.
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c97f70c861ac6959b8116a9bca3031edeb2b2aaa net_processing: move Peer definition to .cpp (Anthony Towns)
e0f2e6d2df7117a8dbf17c63c5149fc53a6fe2b2 net_processing: move PeerManagerImpl into cpp file (Anthony Towns)
a568b82febb3ecbd5ebb7c3f9da27e762b0c68f6 net_processing: split PeerManager into interface and implementation classes (Anthony Towns)
0df3d3fd6bbbd0e06116797177ba797580553250 net_processing: make more of PeerManager private (Anthony Towns)
0d246a59b606c51728d10cb70004a6eedb951bca net, net_processing: move NetEventsInterface method docs to net.h (Anthony Towns)
Pull request description:
Moves the implementation details of `PeerManager` and all of `struct Peer` into net_processing.cpp.
ACKs for top commit:
jnewbery:
ACK c97f70c861ac6959b8116a9bca3031edeb2b2aaa
Sjors:
ACK c97f70c861ac6959b8116a9bca3031edeb2b2aaa
laanwj:
Code review ACK c97f70c861ac6959b8116a9bca3031edeb2b2aaa
vasild:
ACK c97f70c861ac6959b8116a9bca3031edeb2b2aaa
Tree-SHA512: 2e081e491d981c61bd78436a6a6c2eb41d3c2d86a1a8ef9d4d6f801b82cb64a8bf707a96db3429418d1704cffb60a657d1037a0336cbc8173fb79aef9eb72001
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functional tests.
b4dd2ef8009703b81235e2d9a2a736a3a5e8152f [test] Test the add_outbound_p2p_connection functionality (Amiti Uttarwar)
602e69e4278f0ed25c65fb568ab395e4c7ca9ceb [test] P2PBlocksOnly - Test block-relay-only connections. (Amiti Uttarwar)
8bb6beacb19864b1fca766b3e153349a31dc0459 [test/refactor] P2PBlocksOnly - Extract transaction violation test into helper. (Amiti Uttarwar)
99791e7560d40ad094eaa73e0be3987581338e2d [test/refactor] P2PBlocksOnly - simplify transaction creation using blocktool helper. (Amiti Uttarwar)
3997ab915451a702eed2153a0727b0a78c0450ac [test] Add test framework support to create outbound connections. (Amiti Uttarwar)
5bc04e8837c0452923cebd1b823a85e5c4dcdfa6 [rpc/net] Introduce addconnection to test outbounds & blockrelay (Amiti Uttarwar)
Pull request description:
The existing functional test framework uses the `addnode` RPC to spin up manual connections between bitcoind nodes. This limits our ability to add integration tests for our networking code, which often executes different code paths for different connection types.
**This PR enables creating `outbound` & `block-relay-only` P2P connections in the functional tests.** This allows us to increase our p2p test coverage, since we can now verify expectations around these connection types.
This builds out the [prototype](https://github.com/bitcoin/bitcoin/issues/14210#issuecomment-527421978) proposed by ajtowns in #14210. 🙌🏽
An overview of this branch:
- introduces a new test-only RPC function `addconnection` which initiates opening an `outbound` or `block-relay-only` connection. (conceptually similar to `addnode` but for different connection types & restricted to regtest)
- adds `test_framework` support so a mininode can open an `outbound`/`block-relay-only` connection to a `P2PInterface`/`P2PConnection`.
- updates `p2p_blocksonly` tests to create a `block-relay-only` connection & verify expectations around transaction relay.
- introduces `p2p_add_connections` test that checks the behaviors of the newly introduced `add_outbound_p2p_connection` test framework function.
With these changes, there are many more behaviors that we can add integration tests for. The blocksonly updates is just one example.
Huge props to ajtowns for conceiving the approach & providing me feedback as I've built out this branch. Also thank you to jnewbery for lots of thoughtful input along the way.
ACKs for top commit:
troygiorshev:
reACK b4dd2ef8009703b81235e2d9a2a736a3a5e8152f
jnewbery:
utACK b4dd2ef8009703b81235e2d9a2a736a3a5e8152f
MarcoFalke:
Approach ACK b4dd2ef8009703b81235e2d9a2a736a3a5e8152f 🍢
Tree-SHA512: d1cba768c19c9c80e6a38b1c340cc86a90701b14772c4a0791c458f9097f6a4574b4a4acc7d13d6790c7b1f1f197e2c3d87996270f177402145f084ef8519a6b
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3642b2ed34e6609e8de558b352516daadb12cac1 refactor, net: Increase CNode data member encapsulation (Hennadii Stepanov)
acebb79d3f45eb18f820ca5bbc1e16e80fac55f1 refactor, move-only: Relocate CNode private members (Hennadii Stepanov)
Pull request description:
All protected `CNode` data members could be private.
ACKs for top commit:
jnewbery:
utACK 3642b2ed34e6609e8de558b352516daadb12cac1
MarcoFalke:
review ACK 3642b2ed34e6609e8de558b352516daadb12cac1 🏛
Tree-SHA512: 8435e3c43c3b7a3107d58cb809b8b5e1a1c0068677e249bdf0fc6ed24140ac4fc4efe2a280a1ee86df180d738c0c9e10772308690607954db6713000cf6e728d
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fad1f0fd33e5e7a65b702237c7ca8e1b694852d2 net: Remove unused cs_feeFilter (MarcoFalke)
Pull request description:
A `RecursiveMutex` is overkill for setting or reading a plain integer. Even a `Mutex` is overkill, when a plain `std::atomic` can be used.
This removes 11 lines of code. Also, it is cutting down on the number of locks put on the stack at the same time, which complicates review looking out for potential lock contention.
ACKs for top commit:
jnewbery:
utACK fad1f0fd33e5e7a65b702237c7ca8e1b694852d2
practicalswift:
cr ACK fad1f0fd33e5e7a65b702237c7ca8e1b694852d2: patch looks correct
Tree-SHA512: 647f9b954fbf52e138d3e710937eb9131b390fef0deae03fd6a162d5a18b9f194010800bbddc8f89208d91be2802dff11c3884d04b3dd233865abd12aa3cde06
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All protected CNode data members could be private.
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fad327ca65ef30cee2027f1e62d597f0b1c1b641 fuzz: net permission flags in net processing (MarcoFalke)
Pull request description:
to increase coverage
ACKs for top commit:
Crypt-iQ:
cr ACK fad327c
practicalswift:
ACK fad327ca65ef30cee2027f1e62d597f0b1c1b641
Tree-SHA512: f8643d1774ff13524ab97ab228ad070489e080435e5742af26e6e325fd002e4c1fd78b9887e11622e79d6fe0c4daaddce5e033e6cd4b32e50fd68b434aab7333
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faecb74562d012a336837d3b39572c235ad2eb9d Expose integral m_conn_type in CNodeStats, remove m_conn_type_string (Jon Atack)
Pull request description:
Currently, strings are stored for what are actually integral (strong) enum types. This is fine, because the strings are only used as-is for the debug log and RPC. However, it complicates using them in the GUI. User facing strings in the GUI should be translated and only string literals can be picked up for translation, not runtime `std::string`s.
Fix that by removing the `std::string` members and replace them by strong enum integral types.
ACKs for top commit:
jonatack:
Code review ACK faecb74562d012a336837d3b39572c235ad2eb9d
theStack:
Code review ACK faecb74562d012a336837d3b39572c235ad2eb9d 🌲
Tree-SHA512: 24df2bd0645432060e393eb44b8abaf20fe296457d07a867b0e735c3e2e75af7b03fc6bfeca734ec33ab816a7c8e1f8591a5ec342f3afe3098a4e41f5c2cfebb
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Add a new RPC endpoint to enable opening outbound connections from
the tests. The functional test framework currently uses the addnode RPC, which
has different behavior than general outbound peers. These changes enable
creating both full-relay and block-relay-only connections. The new RPC
endpoint calls through to a newly introduced AddConnection method on
CConnman that ensures we stay within the allocated max.
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-BEGIN VERIFY SCRIPT-
sed -i 's/g_upnp_interrupt/g_mapport_interrupt/' src/mapport.cpp
sed -i 's/if(g_upnp_thread/if (g_mapport_thread/' src/mapport.cpp
sed -i 's/g_upnp_thread/g_mapport_thread/' src/mapport.cpp
sed -i 's/LOCAL_UPNP/LOCAL_MAPPED/' src/mapport.cpp
sed -i 's/\bupnp\b/mapport/' src/mapport.cpp
sed -i 's/LOCAL_UPNP, /LOCAL_MAPPED,/' src/net.h
-END VERIFY SCRIPT-
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This commit does not change behavior.
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Also, add lock annotation to SendMessages
Can be reviewed with "--word-diff-regex=."
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Can be reviewed with --color-moved=dimmed-zebra --patience
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const
31b136e5802e1b1e5f9a9589736afe0652f34da2 Don't declare de facto const reference variables as non-const (practicalswift)
1c65c075ee4c7f98d9c1fac5ed7576b96374d4e9 Don't declare de facto const member functions as non-const (practicalswift)
Pull request description:
_Meta: This is the second and final part of the `const` refactoring series (part one: #20581). **I promise: no more refactoring PRs from me in a while! :)** I'll now go back to focusing on fuzzing/hardening!_
Changes in this PR:
* Don't declare de facto const member functions as non-const
* Don't declare de facto const reference variables as non-const
Awards for finding candidates for the above changes go to:
* `clang-tidy`'s [`readability-make-member-function-const`](https://clang.llvm.org/extra/clang-tidy/checks/readability-make-member-function-const.html) check ([list of `clang-tidy` checks](https://clang.llvm.org/extra/clang-tidy/checks/list.html))
* `cppcheck`'s `constVariable` check ([list of `cppcheck` checks](https://sourceforge.net/p/cppcheck/wiki/ListOfChecks/))
See #18920 for instructions on how to analyse Bitcoin Core using Clang Static Analysis, `clang-tidy` and `cppcheck`.
ACKs for top commit:
ajtowns:
ACK 31b136e5802e1b1e5f9a9589736afe0652f34da2
jonatack:
ACK 31b136e5802e1b1e5f9a9589736afe0652f34da2
theStack:
ACK 31b136e5802e1b1e5f9a9589736afe0652f34da2 :snowflake:
Tree-SHA512: f58f8f00744219426874379e9f3e9331132b9b48e954d24f3a85cbb858fdcc98009ed42ef7e7b4619ae8af9fc240a6d8bfc1c438db2e97b0ecd722a80dcfeffe
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378aedc45248cea82d9a3e6dc1038d6828008a76 [net] Add cs_vSend lock annotations (John Newbery)
673254515a2f97e53dd8c7335c836b083ba7e31a [net] Move RecordBytesSent() call out of cs_vSend lock (John Newbery)
Pull request description:
RecordBytesSent() does not require cs_vSend to be locked, so reduce the scope of cs_vSend.
Also correctly annotate the CNode data members that are guarded by cs_vSend.
This is a simpler alternative to #19673.
ACKs for top commit:
jnewbery:
ok, reverting to commit 378aedc which has two ACKs already. Any style issues can be fixed up in future PRs.
troygiorshev:
ACK 378aedc45248cea82d9a3e6dc1038d6828008a76
theStack:
re-ACK 378aedc45248cea82d9a3e6dc1038d6828008a76
MarcoFalke:
review ACK 378aedc45248cea82d9a3e6dc1038d6828008a76 🔌
Tree-SHA512: e9cd6c472b7e1479120c1bf2d1c640cf6d18c7d589a5f9b7dfc4875e5790adaab403a7a1b945a47e79e7249a614b8583270e4549f89b22e8a9edb2e4818b0d07
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0e51a355128a825d428fe2b9017c25085731fc04 refactor: Use Mutex type for some mutexes in CNode class (Hennadii Stepanov)
Pull request description:
No need the `RecursiveMutex` type for the `CNode::cs_vSend`, `CNode::cs_hSocket` and `CNode::cs_vRecv`.
Related to #19303.
ACKs for top commit:
jnewbery:
utACK 0e51a35512
MarcoFalke:
review ACK 0e51a355128a825d428fe2b9017c25085731fc04 🔊
Tree-SHA512: 678ee5e3c15ad21a41cb86ec7179741bd505a138638fdc07f41d6d677c38fbf2208219bfc0509e3675e721fc8d8816e858070db7b87c5d72ad93aae81f7e1636
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getter, unit tests
86c495223f048e5ca2cf0d8730af7db3b76f7aba net: add CNode::IsInboundOnion() public getter and unit tests (Jon Atack)
6609eb8cb50fe92c7317b5db9e72d4333b3aab1b net: assert CNode::m_inbound_onion is inbound in ctor (Jon Atack)
993d1ecd191a7d9161082d4026f020cbf00835bb test, fuzz: fix constructing CNode with invalid inbound_onion (Jon Atack)
Pull request description:
The goal of this PR is to be able to depend on `m_inbound_onion` in AttemptToEvictConnection in #20197:
- asserts `CNode::m_inbound_onion` is inbound in the CNode ctor to have a validity check at the class boundary
- fixes a unit test and a fuzz utility that were passing invalid inbound onion values to the CNode ctor
- drops an unneeded check in `CNode::ConnectedThroughNetwork()` for its inbound status
- adds a public getter `IsInboundOnion()` that also allows unit testing it
- adds unit test coverage
ACKs for top commit:
sipa:
utACK 86c495223f048e5ca2cf0d8730af7db3b76f7aba
LarryRuane:
ACK 86c495223f048e5ca2cf0d8730af7db3b76f7aba
vasild:
ACK 86c495223f048e5ca2cf0d8730af7db3b76f7aba
MarcoFalke:
review ACK 86c495223f048e5ca2cf0d8730af7db3b76f7aba 🐍
Tree-SHA512: 21109105bc4e5e03076fadd489204be00eac710c9de0127708ca2d0a10a048ff81f640f589a7429967ac3eb51d35fe24bb2b12e53e7aa3efbc47aaff6396d204
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e262a19b0ba07d8d2334551f49ca1577ab2999fc gui: display network in peer details (Jon Atack)
913695307360d3582f74ffe225cb122b2e48023d gui: rename peer tab column headers, initialize in .h (Hennadii Stepanov)
05c08c696a1bc45ab28abe6f82bebbdbd6239c23 gui: add network column in peers tab/window (Jon Atack)
e0e55060bf697fe8b9ed43ff62383a0451e9c0ce gui: fix broken doxygen formatting in src/qt/guiutil.h (Jon Atack)
0d5613f9ded846aa20a95c757672e9560c664c4c gui: create GUIUtil::NetworkToQString() utility function (Jon Atack)
af9103cc792e17f35249f1d4cb30f0d6958ceb75 net, rpc: change CNodeStats::m_network from string to Network (Jon Atack)
Pull request description:
and rename peers window column headers from NodeId and Node/Service to Peer Id and Address.
ACKs for top commit:
laanwj:
ACK e262a19b0ba07d8d2334551f49ca1577ab2999fc
Tree-SHA512: 709c2a805c109c2dd033aca7b6b6dc94ebe2ce7a0168c71249e1e661c9c57d1f1c781a5b9ccf3b776bedeb83ae2fb5c505637337c45b1eb9a418cb1693a89761
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Also rename to m_continuation_block to better communicate meaning.
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Not done as a scripted diff to avoid misnaming the local variable in
ProcessMessage().
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and drop an unneeded check in CNode::ConnectedThroughNetwork()
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37fe80e6267094f6051ccf9bec0c7f1a6b9e15da Only consider addrv2 peers for relay of non-addrv1 addresses (Pieter Wuille)
83f8821a6f41854edd5c0b11deabba658890cde1 refactor: add IsAddrCompatible() to CNode (Pieter Wuille)
Pull request description:
When selecting peers to relay an address to, only pick addrv2-capable ones if the address cannot be represented in addr(v1).
Without this I expect that propagation of torv3 addresses over the cleartext network will be very hard for a while.
ACKs for top commit:
jonatack:
ACK 37fe80e6267094f6051ccf9bec0c7f1a6b9e15da
vasild:
ACK 37fe80e6267094f6051ccf9bec0c7f1a6b9e15da
Tree-SHA512: 18a854ea43ad473cf89b9c5193b524109d7af75c26f7aa7e26cd72ad0db52f19c8001d566c607a7e6772bc314f770f09b6c3e07282d110c5daea193edc592cd2
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fee88237e03c21bf81f21098e6b89ecfa5327cee Assert eviction at >= 29 candidates. Assert non-eviction at <= 20 candidates. (practicalswift)
685c428de0fb63ca6ec1419bb112f07d27bcdf14 test: Add unit testing of node eviction logic (practicalswift)
ed73f8cee0d7b7facbd2e8dde24a237f20c48c0c net: Move eviction node selection logic to SelectNodeToEvict(...) (practicalswift)
Pull request description:
Add unit testing of node eviction logic.
Closes #19966.
ACKs for top commit:
jonatack:
ACK fee88237e03c21bf81f21098e6b89ecfa5327cee
MarcoFalke:
ACK fee88237e03c21bf81f21098e6b89ecfa5327cee 🐼
Tree-SHA512: 0827c35609122ca42bfabb17feaaee35c191ab4dc2e428282af425a6c176eaeaff2789b74a4f7eb4ca6b8cb10603068e90ca800e6ef3bc3904d50e76616f7a2b
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