8fe552fe6e0f1fb3600d4c5bc53b4873def6e94e test: add missing sync to p2p_tx_download.py (Martin Zumsande)
Pull request description:
If the node hasn't processed the inv from the outbound peer before the mocktime bump, the peer won't be preferred after the other inv timeouts, failing the test . Therefore, add a sync, just like there is one after the `send_message` calls in the previous lines.
Fixes#31833
ACKs for top commit:
maflcko:
lgtm ACK 8fe552fe6e0f1fb3600d4c5bc53b4873def6e94e
instagibbs:
ACK 8fe552fe6e0f1fb3600d4c5bc53b4873def6e94e
Tree-SHA512: fda935d8a4081b5ecae96f5a73c04f4bb91feaeb09b5c159ffd45cf16668c4345ff268c57f383ba7c7ff544ee07b21f97aa28f257ade809c18b9310837795e7a
9b7023d31a3ec95f66b45f0ecb47e79762d74854 Fuzz HRP of bech32 as well (Lőrinc)
c1a5d5c100b1628456acfa6129e303737f0ad4d3 Split out bech32 separator char to header (Lőrinc)
Pull request description:
Instead of the static "bc" human-readable part, it's now randomly generated based on https://github.com/bitcoin/bips/blob/master/bip-0173.mediawiki and the extra restrictions in the code:
> The human-readable part, which is intended to convey the type of data, or anything else that is relevant to the reader. This part MUST contain 1 to 83 US-ASCII characters, with each character having a value in the range [33-126]. HRP validity may be further restricted by specific applications.
Since `bech32::Encode` rejects uppercase letters, we're actually generating values in the `[33-126] - ['A'-'Z']` range.
Split out of https://github.com/bitcoin/bitcoin/pull/30596/files#r1706957219
ACKs for top commit:
sipa:
ACK 9b7023d31a3ec95f66b45f0ecb47e79762d74854
achow101:
ACK 9b7023d31a3ec95f66b45f0ecb47e79762d74854
marcofleon:
Code review ACK 9b7023d31a3ec95f66b45f0ecb47e79762d74854. The separation into two targets and the new `GenerateRandomHRP` seem fine to me.
brunoerg:
code review ACK 9b7023d31a3ec95f66b45f0ecb47e79762d74854
Tree-SHA512: 22a261b8e7b5516e98f4e7990811954454595438a49a10191ed4ca42b5c71c5054fcc73f2d94e23b498ea833c7f1d5adb225f537ef1a24d15b428259450cdf98
b2e9fdc00f5c40c241a37739f7b73b74c2181e39 test: expect that files may disappear from /proc/PID/fd/ (Vasil Dimov)
Pull request description:
`get_socket_inodes()` calls `os.listdir()` and then iterates on the results using `os.readlink()`. However a file may disappear from the directory after `os.listdir()` and before `os.readlink()` resulting in a `FileNotFoundError` exception.
It is expected that this may happen for `bitcoind` which is running and could open or close files or sockets at any time. Thus ignore the `FileNotFoundError` exception.
ACKs for top commit:
arejula27:
ACK [`b2e9fdc`](b2e9fdc00f)
sipa:
utACK b2e9fdc00f5c40c241a37739f7b73b74c2181e39
achow101:
ACK b2e9fdc00f5c40c241a37739f7b73b74c2181e39
theuni:
utACK b2e9fdc00f5c40c241a37739f7b73b74c2181e39
hodlinator:
ACK b2e9fdc00f5c40c241a37739f7b73b74c2181e39
Tree-SHA512: 8eb05393e4de4307a70af446c3fc7e8f7dc3f08bf9d68d74d02b0e4e900cfd4865249f297be31f1fd7b05ffea45eb855c5cfcd75704167950c1deb4f17109f33
With the exception of the first c++ checks, this ensures that compiler tests
are never run with the wrong build type's flags.
Co-Authored-By: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com>
This prevents intermittent failures - if the node hasn't processed
the inv from the outbound peer before the mocktime bump, the peer
won't be preferred after the other inv timeouts, failing the test .
Therefore, add a sync, just like there is one after the send_message
calls in the previous lines.
The legacy wallet will be able to solve output scripts where the
redeemScript or witnessScript is known, but does not know any of the
private keys involved in that script. These should be migrated to the
solvables wallet.
LegacySPKM would determine whether it could provide any script data to a
transaction through the use of the CanProvide function. Instead of
partially reversing signing logic to figure out the output scripts of
solvable things, we use the same candidate set approach in
GetScriptPubKeys() and instead filter the candidate set first for
things that are ISMINE_NO, and second with CanProvide(). This should
give a more accurate solvables wallet.
InferDescriptors can sometimes make descriptors which are actually
invalid and cannot be parsed. Detect and skip such descriptors by doing
a Parse() check before adding the descriptor to the wallet.
Instead of (partially) trying to reverse IsMine() to get the output
scripts that a LegacySPKM would track, we can preserve it in migration
only code and utilize it to get an accurate set of output scripts.
This is accomplished by computing a set of output script candidates from
map(Crypted)Keys, mapScripts, and setWatchOnly. This candidate set is an
upper bound on the scripts tracked by the wallet. Then IsMine() is used
to filter to the exact output scripts that LegacySPKM would track.
By changing GetScriptPubKeys() this way, we can avoid complexities in
reversing IsMine() and get a more complete set of output scripts.
ea687d202934ee9aa26912cda21993da219cd418 doc: swap CPPFLAGS for APPEND_CPPFLAGS (fanquake)
Pull request description:
`APPEND_CPPFLAGS` will be understood by our CMake, whereas `CPPFLAGS` will not. Attempting what is currently documented will just give:
```bash
CMake Warning:
Ignoring extra path from command line:
"CPPFLAGS=-DDEBUG_LOCKCONTENTION"
```
ACKs for top commit:
fjahr:
ACK ea687d202934ee9aa26912cda21993da219cd418
hebasto:
ACK ea687d202934ee9aa26912cda21993da219cd418.
Tree-SHA512: b8d3359b77a813535a4fa715619b815cd88e5440950f7d4cd045514e6b45d3f1c7f62061315c8581d0a99c0aec38340d34008be05657d198d868b241d19b7828
b448b014947093cd217dbde47c8fb9e6c2bc8ba3 test: add a mocked Sock that allows inspecting what has been Send() to it (Vasil Dimov)
f1864148c4a091afd63be75bc1ff14ae93383523 test: put the generic parts from StaticContentsSock into a separate class (Vasil Dimov)
4b58d55878db55372d1b09de49c6caf363fe3c06 test: move the implementation of StaticContentsSock to .cpp (Vasil Dimov)
Pull request description:
Put the generic parts from `StaticContentsSock` into a separate class `ZeroSock` so that they can be reused in other mocked `Sock` implementations.
Add a new `DynSock` whose `Recv()` and `Send()` methods can be controlled after the object is created. To achieve that, the caller/creator of `DynSock` provides to its constructor two pipes (FIFOs) - recv-pipe and send-pipe. Whatever data is written to recv-pipe is later received by `DynSock::Recv()` method and whatever data is written to the socket using `DynSock::Send()` can later be found in the send-pipe. For convenience there are also two methods to send and receive `CNetMessage`s.
---
This is used in https://github.com/bitcoin/bitcoin/pull/26812 (first two commits from that PR).
Extracting as a separate PR suggested here: https://github.com/bitcoin/bitcoin/pull/30043#discussion_r1619152037.
ACKs for top commit:
Sjors:
re-ACK b448b014947093cd217dbde47c8fb9e6c2bc8ba3
jonatack:
re-ACK b448b014947093cd217dbde47c8fb9e6c2bc8ba3
pinheadmz:
ACK b448b014947093cd217dbde47c8fb9e6c2bc8ba3
Tree-SHA512: 4a36f038192ec4ef63366cbe1a38ae70e7e015630c9f7c44926b756b20ab8c08138acae41801f23b30f6629c7059c1f81e001806e86584ff1bf1fa5b44d9caec
386eecff5f14d508688e6e7374b67cb54aaa7249 doc: add release notes (ismaelsadeeq)
3eaa0a3b663782bb1bd874ea881b21649f1db767 miner: init: add `-blockreservedweight` startup option (ismaelsadeeq)
777434a2cd14841e35ce39d7a6f51131e6a41de2 doc: rpc: improve `getmininginfo` help text (ismaelsadeeq)
c8acd4032d5a7617764857b51777c076fd7ef13d init: fail to start when `-blockmaxweight` exceeds `MAX_BLOCK_WEIGHT` (ismaelsadeeq)
5bb31633cc9155ed58ad97fc04b47b3d317a3ec2 test: add `-blockmaxweight` startup option functional test (ismaelsadeeq)
2c7d90a6d67a159332d109aab278632d64078f0b miner: bugfix: fix duplicate weight reservation in block assembler (ismaelsadeeq)
Pull request description:
* This PR attempts to fix the duplicate coinbase weight reservation issue we currently have.
* Fixes#21950
We reserve 4000 weight units for coinbase transaction in `DEFAULT_BLOCK_MAX_WEIGHT`
7590e93bc7/src/policy/policy.h (L23)
And also reserve additional `4000` weight units in the default `BlockCreationOptions` struct.
7590e93bc7/src/node/types.h (L36-L40)
**Motivation**
- This issue was first noticed during a review here https://github.com/bitcoin/bitcoin/pull/11100#discussion_r136157411)
- It was later reported in issue #21950.
- I also came across the bug while writing a test for building the block template. I could not create a block template above `3,992,000` in the block assembler, and this was not documented anywhere. It took me a while to realize that we were reserving space for the coinbase transaction weight twice.
---
This PR fixes this by consolidating the reservation to be in a single location in the codebase.
This PR then adds a new startup option `-blockreservedweight` whose default is `8000` that can be used to lower or increase the block reserved weight for block header, txs count, coinbase tx.
ACKs for top commit:
Sjors:
ACK 386eecff5f14d508688e6e7374b67cb54aaa7249
fjahr:
Code review ACK 386eecff5f14d508688e6e7374b67cb54aaa7249
glozow:
utACK 386eecff5f14d508688e6e7374b67cb54aaa7249, nonblocking nits. I do think the release notes should be clarified more
pinheadmz:
ACK 386eecff5f14d508688e6e7374b67cb54aaa7249
Tree-SHA512: f27efa1da57947b7f4d42b9322b83d13afe73dd749dd9cac49360002824dd41c99a876a610554ac2d67bad7485020b9dcc423a8e6748fc79d6a10de6d4357d4c
fa5a02bcfa2f3769859332fddb8954d6217de7fc ci: Use clang-20 for sanitizer tasks (MarcoFalke)
Pull request description:
A new clang version generally comes with bugfixes, new (sanitizer) features, and deprecations.
Upgrade the sanitizer tasks to use the new version.
This was also suggested in https://github.com/bitcoin/bitcoin/pull/31691#issuecomment-2602517116
ACKs for top commit:
fanquake:
ACK fa5a02bcfa2f3769859332fddb8954d6217de7fc - tested 20 in some other infra, we just needed to fix the same deprecation warnings we'd seen, in cryptofuzz: 09ca550c3e.
Tree-SHA512: 6114d790b5d7145eb5f019e02da6c2c833342707ad67fb9f9c09506001afbef0c9b9beee7e51321f17f12ea692509d6428e6072ad105dba51e4d54cd057621cd
These scripts are becoming more of nuisance, than a value-add;
particularly since we've been building releases using Guix. Adding new
(release bin) tests can be harder, because it requires constructing a
failing test, which is becoming less easy e.g trying to disable a
feature or protection that has been built into the compiler/toolchain by
default.
In the pre-Guix days, these were valuable to sanity-check the environment,
because we were pulling that pre-built from Ubuntu, with little control.
At this point, it's less clear what these scripts are (sanity) checking.
Note that these also weren't completely ported to CMake (#31698), see
also #31715 which contains other fixes that would be needed for these
test-tests, to accomodate future changes.
e107bf78f9d722fcdeb5c1fba5a784dd7747e12f [fuzz] TxOrphanage::SanityCheck accounting (glozow)
22dccea553253a83c50b2509b881d1c3ae925bdc [fuzz] txorphan byte accounting (glozow)
982ce10178163e07cb009d5fa1bccc0d5b7abece add orphanage byte accounting to TxDownloadManagerImpl::CheckIsEmpty() (glozow)
c289217c01465ab7fc0b0a5e36c514836146ce0e [txorphanage] track the total number of announcements (glozow)
e5ea7daee01e0313d47625b482b3e37bd977a3e7 [txorphanage] add per-peer weight accounting (glozow)
672c69c688f216d70f334498a5fe9b051dc3c652 [refactor] change per-peer workset to info map within orphanage (glozow)
59cd0f0e091f78cd4248c9c4ac6074740dde2a25 [txorphanage] account for weight of orphans (glozow)
Pull request description:
Part of orphan resolution project, see #27463.
Definitions:
- **Announcement** is a unique pair (wtxid, nodeid). We can have multiple announcers for the same orphan since #31397.
- **Size** is the weight of an orphan. I'm calling it "size" and "bytes" because I think we can refine it in the future to be memusage or be otherwise more representative of the orphan's actual cost on our memory. However, I am open to naming changes.
This is part 1/2 of a project to also add limits on orphan size and count. However, this PR **does not change behavior**, just adds internal counters/tracking and a fuzzer. I will also open a second PR that adds behavior changes, which requires updating a lot of our tests and careful thinking about DoS.
ACKs for top commit:
instagibbs:
reACK e107bf78f9
marcofleon:
reACK e107bf78f9d722fcdeb5c1fba5a784dd7747e12f
sipa:
utACK e107bf78f9d722fcdeb5c1fba5a784dd7747e12f
Tree-SHA512: 855d725d5eb521d131e36dacc51990725e3ca7881beb13364d5ba72ab2202bbfd14ab83864b13b1b945a4ec5e17890458d0112270b891a41b1e27324a8545d72
f5b9a2f68c95182b139e8a3447b4b5888ecb4f9f build: use CLIENT_NAME in libbitcoinkernel.pc.in (fanquake)
Pull request description:
Follows up from when the `pc.in` was added.
ACKs for top commit:
davidgumberg:
utACK f5b9a2f68c
stickies-v:
ACK f5b9a2f68c95182b139e8a3447b4b5888ecb4f9f
theuni:
utACK f5b9a2f68c95182b139e8a3447b4b5888ecb4f9f
hebasto:
ACK f5b9a2f68c95182b139e8a3447b4b5888ecb4f9f.
Tree-SHA512: 7c32db919aa226f9894ed21baa3f794d1181d43d36ae56ba2d187e1a9bafd89feadc6209ab5b5a1b90d8a3de54fb910736397b1061ef48b232b59792ee250d55
2706c5b7c8eee7ffd8c3b23a8012f346165ddb93 test: test_inv_block, use mocktime instead of waiting (Greg Sanders)
Pull request description:
Performance issue reported in https://github.com/bitcoin/bitcoin/pull/31437#issuecomment-2640221382
It seems that code as-is waits for wall-clock time to pass to synchronize mempools. Locally, sometimes the subtest takes a couple seconds, sometimes it takes an additional minute.
Just use mocktime?
ACKs for top commit:
sr-gi:
tACK [2706c5b](2706c5b7c8)
rishkwal:
tACK 2706c5b
Prabhat1308:
tACK [2706c5b](2706c5b7c8)
Tree-SHA512: 561fe3d67282c67e1ed7dd5eeb137964c083d498534ea5f749f3d782e73a3f47d23faee6cca39866eaba770fda7b7d60a9f740f16bdb451d6a5e9105417cb158
407062f2ac93624f350e9e8a4f641c882a2aaf2f depends: Avoid using the `-ffile-prefix-map` compiler option (Hennadii Stepanov)
Pull request description:
This PR is similar to https://github.com/bitcoin/bitcoin/pull/31337 and applies analogous changes to all dependency packages.
The issue was [recently noticed](https://github.com/bitcoin/bitcoin/pull/31661#discussion_r1923896475) when `-ffile-prefix-map` was added to the `libevent` package, which is built in OSS-Fuzz.
This PR replaces `-ffile-prefix-map` in all packages for consistency.
Fixes https://github.com/bitcoin/bitcoin/issues/31770.
ACKs for top commit:
davidgumberg:
Tested ACK 407062f2ac.
theuni:
utACK 407062f2ac93624f350e9e8a4f641c882a2aaf2f
Tree-SHA512: c501519c2397b7f11cdab13c0cd4b98a73b305817dba6ff61efc1c80c3cb44134bbd7f55eaecc1dab97f817ce44b28b6c81ccef74ea2d62c93ac43130be4efaf
faca7ac13215fd88b420feea8f06d7404f8fd067 ci: Bump fuzz task timeout (MarcoFalke)
Pull request description:
The fuzz task seems to be the most CPU intense task (going through GB of data through all fuzz inputs for all fuzz targets).
Normally, the task takes 44 minutes (example https://cirrus-ci.com/task/5077976091459584), but under higher load, it may take longer (https://cirrus-ci.com/task/5966231095738368).
I tried to move it to GHA to see how it compares, but it will be even slower there: https://github.com/maflcko/bitcoin-core-with-ci/actions/runs/13182526514/job/36796629409.
The CI machines were recently updated to increase the CI performance, so in theory they could be updated again, but this can take some time and seems like the wrong fix anyway, because it will just hide the problem:
Ideally fuzzing is fast and when evaluating a fuzz input takes more than 10 seconds, it feels more like a slow unit test loop. So ideally fuzz timeouts should be fixed (https://github.com/bitcoin/bitcoin/issues/31066, https://github.com/bitcoin/bitcoin/issues/30498, ...). However, this can also take time.
So temporarily bump the fuzz timeout for now.
ACKs for top commit:
dergoegge:
ACK faca7ac13215fd88b420feea8f06d7404f8fd067
Tree-SHA512: cfb06d14712d94be6b28a17eee821dcc762453e8efbd9376200f8a0e784a55c2140e45ac48bee9b71ef6e85ae7345155dddc1239cbf0cd4bc02583848fe46308
No change for now, moving from map of NodeId->workset to
NodeId->PeerOrphanInfo struct that holds the workset.
In future commits, we will start tracking more things per-peer in the
orphanage.
2f27c910869e301b7e7669e81a0878da64e49957 qt: Update the `src/qt/locale/bitcoin_en.xlf` translation source file (Hennadii Stepanov)
864386a7444fb5cf16613956ce8bf335f51b67d5 cmake: Ensure generated sources are up to date for `translate` target (Hennadii Stepanov)
2b51dd384b4a2655ee066e8bccd254270d0f5f6c Update Transifex slug for 29.x (Hennadii Stepanov)
Pull request description:
This PR follows our [Release Process](864386a744/doc/release-process.md).
It is required to open Transifex translations for v29.0, as scheduled in https://github.com/bitcoin/bitcoin/issues/31029.
The previous similar PR: https://github.com/bitcoin/bitcoin/pull/30548.
**Notes for reviewers:**
1. This is the first release process conducted after migrating the build system to CMake. This revealed a bug, which is fixed in the second commit
2. To reproduce the diff in the third commit, follow these steps:
```
gmake -C depends -j $(nproc) MULTIPROCESS=1
cmake --preset dev-mode --toolchain depends/$(./depends/config.guess)/toolchain.cmake
cmake --build build_dev_mode --target translate
```
ACKs for top commit:
stickies-v:
ACK 2f27c910869e301b7e7669e81a0878da64e49957
Tree-SHA512: 325ce2418f218b82cc3b0a6c727473963455680cdf6383a85768613ed9e485974b2e52bd5b2e7a7472ad8ebe40bccb2884764d7f9e83dc10a587cd7892e0028b
Some of the networking constants defined in p2p_tx_download.py are more generally
defined in p2p.py
Also, rename the remaining ones to match ones defined in txdownloadman
Some sources might be generated, and while they likely do not contain
any translatable strings, this change generalizes the approach to
include generated sources in the translation process as well.
1973a9e4f1dfba57051135d6e1bca80979de3879 test: fixes p2p_ibd_txrelay wait time (Sergi Delgado Segura)
Pull request description:
`p2p_ibd_txrelay` expects no GETDATA to have been received by a peer after announcing a transaction. The reason is that the node is doing IBD, so transaction requests are not replied to. However, the way this is checked is wrong, and the check will pass even if the node **was not** in IBD.
This is due to the mocktime not being properly initialized, so the check is always performed earlier than it should, making it impossible for the request to be there.
This can be checked by modifying the test so the peer **is not doing IBD**, and checking how the test succeeds on that assert (even though it fails later on, given the nature of the test):
```diff
index 882f5b5c13..3a69ae5860 100755
--- a/test/functional/p2p_ibd_txrelay.py
+++ b/test/functional/p2p_ibd_txrelay.py
@@ -34,7 +34,7 @@ NORMAL_FEE_FILTER = Decimal(100) / COIN
class P2PIBDTxRelayTest(BitcoinTestFramework):
def set_test_params(self):
- self.setup_clean_chain = True
+ # self.setup_clean_chain = True
self.num_nodes = 2
self.extra_args = [
["-minrelaytxfee={}".format(NORMAL_FEE_FILTER)],
@@ -43,9 +43,11 @@ class P2PIBDTxRelayTest(BitcoinTestFramework):
def run_test(self):
self.log.info("Check that nodes set minfilter to MAX_MONEY while still in IBD")
- for node in self.nodes:
- assert node.getblockchaininfo()['initialblockdownload']
- self.wait_until(lambda: all(peer['minfeefilter'] == MAX_FEE_FILTER for peer in node.getpeerinfo()))
+ # for node in self.nodes:
+ # assert node.getblockchaininfo()['initialblockdownload']
+ # self.wait_until(lambda: all(peer['minfeefilter'] == MAX_FEE_FILTER for peer in node.getpeerinfo()))
```
ACKs for top commit:
i-am-yuvi:
ACK 1973a9e4f1dfba57051135d6e1bca80979de3879
glozow:
ACK 1973a9e4f1dfba57051135d6e1bca80979de3879
Tree-SHA512: c4b3afe9927c5480671ebf5c1f6ee5fc7e3aeefeb13c210fa83587a6c126e1a8e40ad8e46587537d0f4bf06a36bbf2310ca065d685d4d9286e5a446b8d5b2235
3f4b104b1b7e1b87c0be8e395e02b6ae3c5d7b08 test: make sure we are on sync with a peer before checking if they have sent a message (Sergi Delgado Segura)
Pull request description:
p2p_orphan_handling checks whether a message has not been requested slightly too soon, making the check always succeed. This passes unnoticed since the expected result is for the message to not have been received, but it will make the test not catch a relevant change that should make it fail.
An easy way to check this is the case is to modify one of the test cases to force a request within the expected time, and check how the request is not seen. After the change, the test would crash as expected:
```diff
index 963d92485c..30ab5f2035 100755
--- a/test/functional/p2p_orphan_handling.py
+++ b/test/functional/p2p_orphan_handling.py
@@ -186,9 +185,12 @@ class OrphanHandlingTest(BitcoinTestFramework):
parent_inv = CInv(t=MSG_WTX, h=int(tx_parent_arrives["tx"].getwtxid(), 16))
assert_equal(len(peer_spy.get_invs()), 0)
peer_spy.assert_no_immediate_response(msg_getdata([parent_inv]))
+ txid = 0xdeadbeef
+ peer_spy.send_and_ping(msg_inv([CInv(t=MSG_WTX, h=txid)]))
# Request would be scheduled with this delay because it is not a preferred relay peer.
self.nodes[0].bumpmocktime(NONPREF_PEER_TX_DELAY)
+ peer_spy.assert_never_requested(int(txid))
peer_spy.assert_never_requested(int(tx_parent_arrives["txid"], 16))
peer_spy.assert_never_requested(int(tx_parent_doesnt_arrive["txid"], 16))
# Request would be scheduled with this delay because it is by txid.
```
It is worth noting that this is not seen in the cases where the message is expected to be received, because in such cases `assert_never_requested` is always after a `wait_....` method, which is already waiting for the node to sync on their end.
ACKs for top commit:
i-am-yuvi:
ACK 3f4b104b1b7e1b87c0be8e395e02b6ae3c5d7b08
instagibbs:
ACK 3f4b104b1b7e1b87c0be8e395e02b6ae3c5d7b08
glozow:
ACK 3f4b104b1b7e1b87c0be8e395e02b6ae3c5d7b08
Tree-SHA512: 321a6605d630bed2217b6374e999dbb84da14138263dd8adf65fe3a6cd7981a50c873beced9cf05cb6d747a912e91017c58e7d4323d25449c87d83095ff4cba9
e3622a969293feea75cfadc8f7c6083edcd6d8de tracing: document that peer addrs can be >68 chars (0xb10c)
b19b526758f055733e1c21809cf975169fdd39b0 tracing: log_p2p_connections.bt example (0xb10c)
caa5486574baf805b36c8abc873554aee4ba82b7 tracing: connection closed tracepoint (0xb10c)
b2ad6ede95ea66e8677b31d614e183953966db54 tracing: add misbehaving conn tracepoint (0xb10c)
68c1ef4f19bc4ebe0ca1af95ac378732c4fe6d22 tracing: add inbound connection eviction tracepoint (0xb10c)
4d61d52f4387622701cdad4bb0fb115127021106 tracing: add outbound connection tracepoint (0xb10c)
85b2603eec634257cd3b398900dbb92251db71e6 tracing: add inbound connection tracepoint (0xb10c)
Pull request description:
This adds five new tracepoints with documentation and tests for network connections:
- established connections with `net:inbound_connection` and `net:outbound_connection`
- closed connections (both closed by us or by the peer) with `net:closed_connnection`
- inbound connections that we choose to evict with `net:evicted_inbound_connection`
- connections that are misbehaving and punished with `net:misbehaving_connection`
I've been using these tracepoints for a few months now to monitor connection lifetimes, re-connection frequency by IP and netgroup, misbehavior, peer discouragement, and eviction and more. Together with the two existing P2P message tracepoints they allow for a good overview of local P2P network activity. Also sort-of addresses https://github.com/bitcoin/bitcoin/pull/22006#discussion_r636775863.
I've been back and forth on which arguments to include. For example, `net:evicted_connection` could also include some of the eviction metrics like e.g. `last_block_time`, `min_ping_time`, ... but I've left them out for now. If wanted, this can be added here or in a follow-up. I've tried to minimize a potential performance impact by measuring executed instructions with `gdb` where possible (method described [here](https://github.com/bitcoin/bitcoin/pull/23724#issuecomment-996919963)). I don't think a few hundred extra instructions are too crucial, as connection opens/closes aren't too frequent (compared to e.g. P2P messages). Note: e.g. `CreateNodeFromAcceptedSocket()` usually executes between 80k and 90k instructions for each new inbound connection.
| tracepoint | instructions |
|----------------------------|--------------------------------------------------------|
| net:inbound_connection | 390 ins |
| net:outbound_connection | between 700 and 1000 ins |
| net:closed_connnection | 473 ins |
| net:evicted_inbound_connection | not measured; likely similar to net:closed_connnection |
| net:misbehaving_connection | not measured |
Also added a bpftrace (tested with v0.14.1) `log_p2p_connections.bt` example script that produces output similar to:
```
Attaching 6 probes...
Logging opened, closed, misbehaving, and evicted P2P connections
OUTBOUND conn to 127.0.0.1:15287: id=0, type=block-relay-only, network=0, total_out=1
INBOUND conn from 127.0.0.1:45324: id=1, type=inbound, network=0, total_in=1
MISBEHAVING conn id=1, message='getdata message size = 50001'
CLOSED conn to 127.0.0.1:15287: id=0, type=block-relay-only, network=0, established=1231006505
EVICTED conn to 127.0.0.1:45324: id=1, type=inbound, network=0, established=1612312312
```
ACKs for top commit:
laanwj:
re-ACK e3622a969293feea75cfadc8f7c6083edcd6d8de
vasild:
ACK e3622a969293feea75cfadc8f7c6083edcd6d8de
sipa:
utACK e3622a969293feea75cfadc8f7c6083edcd6d8de
Tree-SHA512: 1032dcac6fe0ced981715606f82c2db47016407d3accb8f216c978f010da9bc20453e24a167dcc95287f4783b48562ffb90f645bf230990e3df1b9b9a6d4e5d0
The `-ffile-prefix-map` compiler option implicitly enables
`-fprofile-prefix-map` in GCC or `-fcoverage-prefix-map` in Clang, which
can cause issues with coverage builds.
This change ensures that only the options necessary for build
reproducibility are applied.
