Commit Graph

676 Commits

Author SHA1 Message Date
Felix Lange 9b46986edc
all: use rlp.DecodeBytes instead of rlp.Decode where possible (#27994) 2023-08-24 11:47:42 +03:00
Péter Szilágyi be65b47645
all: update golang/x/ext and fix slice sorting fallout (#27909)
The Go authors updated golang/x/ext to change the function signature of the slices sort method. 
It's an entire shitshow now because x/ext is not tagged, so everyone's codebase just 
picked a new version that some other dep depends on, causing our code to fail building.

This PR updates the dep on our code too and does all the refactorings to follow upstream...
2023-08-12 00:04:12 +02:00
Felix Lange 7ec60d5f0c
p2p: move ping handling into pingLoop goroutine (#27887)
Moving the response sending there allows tracking all peer goroutines
in the peer WaitGroup.
2023-08-09 16:00:31 +02:00
ucwong 6d2bcb911a
p2p/simulations/examples: use atomic.Int64 (#27861) 2023-08-07 18:30:05 +02:00
ucwong d04bde0a20
p2p: use atomic types (#27764)
Co-authored-by: Felix Lange <fjl@twurst.com>
2023-08-01 23:20:52 +02:00
Seungbae Yu 60ecf48dd4
cmd/bootnode, p2p: support for alternate mapped ports (#26359)
This changes the port mapping procedure such that, when the requested port is unavailable
an alternative port suggested by the router is used instead.

We now also repeatedly request the external IP from the router in order to catch any IP changes.

Co-authored-by: Felix Lange <fjl@twurst.com>
2023-07-14 14:58:27 +02:00
Felix Lange a426999fc9
p2p/discover: filter bootnodes by netrestrict (#27701)
This prevents an issue where the node would attempt to contact the bootstrap
nodes even if they weren't contained in the netrestrict list.
2023-07-12 12:01:38 +02:00
lightclient 645b0db98e
cmd/utils, p2p: clean up discovery setup (#27518)
This simplifies the code that initializes the discovery a bit, and
adds new flags for enabling/disabling discv4 and discv5 separately.

---------

Co-authored-by: Felix Lange <fjl@twurst.com>
2023-07-11 21:21:32 +02:00
lightclient cbf2579691
p2p, p2p/discover: add dial metrics (#27621)
This PR adds metrics for p2p dialing, which gives us visibility into the quality of the dial 
candidates  returned by our discovery methods.
2023-07-06 16:20:31 +02:00
Exca-DK 5520cd97a1
p2p/discover: swap verification order in discv4 ping handler (#27532)
In all other UDPv4 methods, the deadline is checked first. It seems weird to me that ping is an exception. Deadline comparison is also less resource intensive.

Co-authored-by: Exca-DK <Exca-DK@users.noreply.github.com>
2023-06-22 10:06:14 +02:00
Dan Laine 289c6c3b15
p2p: use slices package for sorting (#27494)
Co-authored-by: Felix Lange <fjl@twurst.com>
2023-06-19 07:48:12 +02:00
Sanghee Choi acc2a2ac61
node: remove unused error return from Attach (#27450)
node: Delete the unused error from return parameters of Node.Attach() func
2023-06-14 08:24:47 -04:00
Felix Lange ac86547b01
p2p/discover: add Table configuration and Nodes method (#27387)
* p2p/discover: remove ReadRandomNodes

Even though it's public, this method is not callable by code outside of
package p2p/discover because one can't get a valid instance of Table.

* p2p/discover: add Table.Nodes

* p2p/discover: make Table settings configurable

In unit tests and externally developed cmd/devp2p test runs, it can be
useful to tune the timer intervals used by Table.
2023-05-31 13:37:10 +02:00
ucwong ae7db289b8
p2p: initialize maps with known size (#27229) 2023-05-10 10:52:26 +02:00
Martin Holst Swende 7d1ebe51b7
p2p/discover: fix lint nit (#27206) 2023-05-02 04:36:11 -04:00
ucwong a865e28f28
p2p/discover : typo (#27193) 2023-04-28 21:34:08 +03:00
Felix Lange 47cdea5ac5
p2p/discover: concurrent TALKREQ handling (#27112)
This changes TALKREQ message processing to run the handler on separate goroutine,
instead of running on the main discv5 dispatcher goroutine. It's better this way because
it allows the handler to perform blocking actions.

I'm also adding a new method TalkRequestToID here. The method allows implementing
a request flow where one node A sends TALKREQ to another node B, and node B later
sends a TALKREQ back. With TalkRequestToID, node B does not need the ENR of A to
send its request.
2023-04-28 11:03:43 +02:00
Exca-DK f8f95346f9
p2p/discover: add traffic metrics (#27008)
Co-authored-by: Exca-DK <dev@DESKTOP-RI45P4J.localdomain>
Co-authored-by: rjl493456442 <garyrong0905@gmail.com>
2023-04-25 12:12:34 +02:00
joohhnnn b1972627d9
p2p: access embedded fields of Server directly (#27078) 2023-04-18 11:57:08 +02:00
lightclient 2c5798464e
common: delete MakeName (#27023)
common,p2p: remove unused function MakeName
2023-04-03 03:51:31 -04:00
Delweng 117530b0e6
metrics/librato: ensure resp.body closed (#26969)
This change ensures that we call Close on a http response body, in various places in the source code (mostly tests)
2023-03-27 07:44:41 -04:00
Martin Holst Swende eca3d39c31
p2p/discover: pass invalid discv5 packets to Unhandled channel (#26699)
This makes it possible to run another protocol alongside discv5, by reading 
unhandled packets from the channel.
2023-03-14 12:40:40 +01:00
panicalways 051493d9bf
p2p: small comment typo (#26850)
Update server.go
2023-03-10 11:45:49 +02:00
Martin Holst Swende 4d3525610e
all: remove deprecated uses of math.rand (#26710)
This PR is a (superior) alternative to https://github.com/ethereum/go-ethereum/pull/26708, it handles deprecation, primarily two specific cases. 

`rand.Seed` is typically used in two ways
- `rand.Seed(time.Now().UnixNano())` -- we seed it, just to be sure to get some random, and not always get the same thing on every run. This is not needed, with global seeding, so those are just removed. 
- `rand.Seed(1)` this is typically done to ensure we have a stable test. If we rely on this, we need to fix up the tests to use a deterministic prng-source. A few occurrences like this has been replaced with a proper custom source. 

`rand.Read` has been replaced by `crypto/rand`.`Read` in this PR.
2023-02-16 14:36:58 -05:00
Felix Lange 101587b3f4
p2p/dnsdisc: fix tests with Go 1.20 (#26690) 2023-02-14 15:58:43 +02:00
Shude Li 163e996d0e
all: use http package to replace http method names (#26535) 2023-01-24 11:12:25 +02:00
Felix Lange a251bca67c
p2p/discover: add more packet information in logs (#26307)
* p2p/discover: add more packet information in logs

This adds more fields to discv5 packet logs. These can be useful when
debugging multi-packet interactions.

The FINDNODE message also gets an additional field, OpID for debugging
purposes. This field is not encoded onto the wire.

I'm also removing topic system related message types in this change.
These will come back in the future, where support for them will be
guarded by a config flag.

* p2p/discover/v5wire: rename 'Total' to 'RespCount'

The new name captures the meaning of this field better.
2023-01-03 12:36:38 +01:00
Felix Lange 9e6a1c3834
common/mclock: add Alarm (#26333)
Alarm is a timer utility that simplifies code where a timer needs to be rescheduled over
and over. Doing this can be tricky with time.Timer or time.AfterFunc because the channel
requires draining in some cases.

Alarm is optimized for use cases where items are tracked in a heap according to their expiry
time, and a goroutine with a for/select loop wants to be woken up whenever the next item expires.
In this application, the timer needs to be rescheduled when an item is added or removed
from the heap. Using a timer naively, these updates will always require synchronization
with the global runtime timer datastructure to update the timer using Reset. Alarm avoids
this by tracking the next expiry time and only modifies the timer if it would need to fire earlier
than already scheduled.

As an example use, I have converted p2p.dialScheduler to use Alarm instead of AfterFunc.
2023-01-03 12:10:48 +01:00
zhiqiangxu a9dfac0332
p2p/discover: improve nodesByDistance.push code (#26019)
This improves readability of function 'push'.

sort.Search(N, ...) will at most return N when no match, so ix should be compared
with N. The previous version would compare ix with N+1 in case an additional item
was appended. No bug resulted from this comparison, but it's not easy to understand
why.

Co-authored-by: Felix Lange <fjl@twurst.com>
2022-12-07 23:31:47 +01:00
Seungbae Yu 42212808f0
p2p/nat: handle responses with alternative port in NAT-PMP (#26321)
Co-authored-by: Felix Lange <fjl@twurst.com>
2022-12-07 16:22:04 +01:00
Sina Mahmoodi f20eba426a
graphql, node, rpc: improve HTTP write timeout handling (#25457)
Here we add special handling for sending an error response when the write timeout of the
HTTP server is just about to expire. This is surprisingly difficult to get right, since is
must be ensured that all output is fully flushed in time, which needs support from
multiple levels of the RPC handler stack:

The timeout response can't use chunked transfer-encoding because there is no way to write
the final terminating chunk. net/http writes it when the topmost handler returns, but the
timeout will already be over by the time that happens. We decided to disable chunked
encoding by setting content-length explicitly.

Gzip compression must also be disabled for timeout responses because we don't know the
true content-length before compressing all output, i.e. compression would reintroduce
chunked transfer-encoding.
2022-12-07 14:02:14 +01:00
Håvard Anda Estensen 06632da2bb
all: assign zero after resize in implementations of heap.Interface (#26296)
This changes the Pop method to assign the zero value before
reducing slice size. Doing so ensures the backing array does not
reference removed item values.
2022-12-05 13:49:54 +01:00
RichΛrd c1aa1db69e
p2p/discover: add config option for discv5 protocol ID (#26041)
This option is occasionally useful for advanced uses of the discv5 protocol.

Co-authored-by: Felix Lange <fjl@twurst.com>
2022-11-30 22:03:34 +01:00
Seungbae Yu 53d1ae096a
p2p/nat: use IP.IsPrivate (#26252) 2022-11-25 16:30:07 +01:00
Felix Lange 9afc6816d2
common/lru: add generic LRU implementation (#26162)
It seems there is no fully typed library implementation of an LRU cache.
So I wrote one. Method names are the same as github.com/hashicorp/golang-lru,
and the new type can be used as a drop-in replacement.

Two reasons to do this:

- It's much easier to understand what a cache is for when the types are right there.
- Performance: the new implementation is slightly faster and performs zero memory
   allocations in Add when the cache is at capacity. Overall, memory usage of the cache
   is much reduced because keys are values are no longer wrapped in interface.
2022-11-14 15:41:56 +01:00
zhiqiangxu 4cb1fca43d
p2p/enode: implement per-source timeout in FairMix (#25962)
Co-authored-by: Felix Lange <fjl@twurst.com>
2022-11-08 12:12:36 +01:00
Felix Lange 9027ee0b45
p2p/discover: improve discv5 NODES response packing (#26033)
Instead of using a limit of three nodes per message, we can pack more nodes
into each message based on ENR size. In my testing, this halves the number
of sent NODES messages, because ENR size is usually < 300 bytes.

This also adds RLP helper functions that compute the encoded size of
[]byte and string.

Co-authored-by: Martin Holst Swende <martin@swende.se>
2022-11-07 19:19:02 +01:00
Justin Traglia 621b423ac1
p2p/discover: fix handling of distance 256 in lookupDistances (#26087)
Noticed that lookupDistances for FINDNODE requests didn't consider 256 a valid
distance. This is actually part of the example in the comment above the
function, surprised that wasn't tested before.
2022-11-02 14:50:07 +01:00
Martin Holst Swende 5a02b2d6d0
all: fix spelling mistakes (#25961) 2022-10-11 09:37:00 +02:00
Martin Holst Swende ee301c750b
all: fix docstrings 2022-10-04 09:18:02 +02:00
Boqin@MetaSecureLabs e6d4aedb8c
p2p: add channel buffers to avoid goroutine leaks in tests (#24929) 2022-09-23 10:51:12 +02:00
Seungbae Yu 0c1888a367
p2p/discover/v5wire: reject packets smaller than 63 bytes (#25740) 2022-09-12 15:02:03 +02:00
Felix Lange b628d72766
build: upgrade to go 1.19 (#25726)
This changes the CI / release builds to use the latest Go version. It also
upgrades golangci-lint to a newer version compatible with Go 1.19.

In Go 1.19, godoc has gained official support for links and lists. The
syntax for code blocks in doc comments has changed and now requires a
leading tab character. gofmt adapts comments to the new syntax
automatically, so there are a lot of comment re-formatting changes in this
PR. We need to apply the new format in order to pass the CI lint stage with
Go 1.19.

With the linter upgrade, I have decided to disable 'gosec' - it produces
too many false-positive warnings. The 'deadcode' and 'varcheck' linters
have also been removed because golangci-lint warns about them being
unmaintained. 'unused' provides similar coverage and we already have it
enabled, so we don't lose much with this change.
2022-09-10 13:25:40 +02:00
Martin Holst Swende 06151eb581
p2p/msgrate: be more lenient when calculating 'mean' (#25653)
The p2p msgrate tracker is a thing which tries to estimate some mean round-trip times. However, it did so in a very curious way: if a node had 200 peers, it would sort their 200 respective rtt estimates, and then it would pick item number 2 as the mean. So effectively taking third fastest and calling it mean. This probably works "ok" when the number of peers are low (there are other factors too, such as ttlScaling which takes some of the edge off this) -- however when the number of peers is high, it becomes very skewed.

This PR instead bases the 'mean' on the square root of the length of the list. Still pretty harsh, but a bit more lenient.
2022-09-09 10:47:30 +02:00
Abirdcfly c394c308e6
all: remove duplicate word in comments (#25618)
Signed-off-by: Abirdcfly <fp544037857@gmail.com>

Signed-off-by: Abirdcfly <fp544037857@gmail.com>
2022-08-29 11:16:34 +03:00
Justin Traglia 2c5648d891
all: fix some typos (#25551)
* Fix some typos

* Fix some mistakes

* Revert 4byte.json

* Fix an incorrect fix

* Change files to fails
2022-08-19 09:00:21 +03:00
Delweng b196ad1c16
all: add whitespace linter (#25312)
* golangci: typo

Signed-off-by: Delweng <delweng@gmail.com>

* golangci: add whietspace

Signed-off-by: Delweng <delweng@gmail.com>

* *: rm whitesapce using golangci-lint

Signed-off-by: Delweng <delweng@gmail.com>

* cmd/puppeth: revert accidental resurrection

Co-authored-by: Péter Szilágyi <peterke@gmail.com>
2022-07-25 13:14:03 +03:00
Abirdcfly 39900be087
p2p/netutil: minor code cosmetic
Signed-off-by: Abirdcfly <fp544037857@gmail.com>
2022-07-25 12:52:49 +03:00
Ha ĐANG a9ef135e2d
p2p/discover: apply netrestrict in discv5 response handler (#25304) 2022-07-15 18:37:51 +02:00
Péter Szilágyi b53d38246e
Merge pull request #25096 from lightclient/remove-version-field
all: remove version field
2022-07-14 12:13:59 +03:00
Seungbae.yu b3fc9574ec
p2p/discover: fix typos in comments (#25272) 2022-07-10 10:15:54 +02:00
zeim839 9a5c1000c7
cmd/geth, p2p: add support for custom discovery UDP port (#24979)
This adds a new flag to set the discovery port to be different from
the TCP listener port.

Co-authored-by: Felix Lange <fjl@twurst.com>
2022-06-28 17:25:47 +02:00
lightclient@protonmail.com 0c6f81f888
all: remove version field from rpc.API 2022-06-27 12:39:46 +02:00
Martin Holst Swende a907d7e81a
all: more linters (#24783)
This enables the following linters

- typecheck
- unused
- staticcheck
- bidichk
- durationcheck
- exportloopref
- gosec

WIth a few exceptions.

- We use a deprecated protobuf in trezor. I didn't want to mess with that, since I cannot meaningfully test any changes there.
- The deprecated TypeMux is used in a few places still, so the warning for it is silenced for now.
- Using string type in context.WithValue is apparently wrong, one should use a custom type, to prevent collisions between different places in the hierarchy of callers. That should be fixed at some point, but may require some attention.
- The warnings for using weak random generator are squashed, since we use a lot of random without need for cryptographic guarantees.
2022-06-13 16:24:45 +02:00
Håvard Anda Estensen 138f0d7494
p2p: use errors.Is for error comparison (#24882)
Co-authored-by: Felix Lange <fjl@twurst.com>
2022-06-07 17:27:21 +02:00
Martin Holst Swende 403624a4a1
p2p/discover: fix panicky test (#25038) 2022-06-07 12:15:22 +02:00
Felix Lange 9244d5cd61
all: update license headers and AUTHORS from git history (#24947) 2022-05-24 20:39:40 +02:00
Håvard Anda Estensen 07508ac0e9
all: replace uses of ioutil with io and os (#24869) 2022-05-16 11:59:35 +02:00
s7v7nislands 7caa2d8163
all: replace strings.Replace with string.ReplaceAll (#24835) 2022-05-09 13:13:23 +03:00
Ikko Ashimine 33d7a469f6
p2p/simulations: fix typo in network_test.go (#24824) 2022-05-05 20:20:11 +02:00
ImanSharaf ca8e2f1ecf
p2p/simulations: escape mockerType value from request (#24822)
Co-authored-by: Felix Lange <fjl@twurst.com>
2022-05-05 19:44:36 +02:00
henopied 63972e7548
p2p: fix type of DiscSubprotocolError (#24747)
It was 'int' accidentally, should be DiscReason instead.
2022-04-25 11:05:47 +02:00
Eng Zer Jun 8d066f1f42
all: use T.TempDir to create temporary test directories (#24633)
This commit replaces ioutil.TempDir with t.TempDir in tests. The
directory created by t.TempDir is automatically removed when the test
and all its subtests complete.

Prior to this commit, temporary directory created using ioutil.TempDir
had to be removed manually by calling os.RemoveAll, which is omitted in
some tests. The error handling boilerplate e.g.

	defer func() {
		if err := os.RemoveAll(dir); err != nil {
			t.Fatal(err)
		}
	}

is also tedious, but t.TempDir handles this for us nicely.

Reference: https://pkg.go.dev/testing#T.TempDir
Signed-off-by: Eng Zer Jun <engzerjun@gmail.com>
2022-04-08 15:44:55 +02:00
Felix Lange 870b4505a0
p2p: define DiscReason as uint8 (#24507)
All other implementations store disconnect reasons as a single byte,
so go-ethereum should do it too.
2022-03-07 18:25:45 +01:00
Felix Lange d6f49bf764
core/types: faster RLP encoding of Header, StateAcccount, ReceiptForStorage (#24420)
This change makes use of the new code generator rlp/rlpgen to improve the
performance of RLP encoding for Header and StateAccount. It also speeds up
encoding of ReceiptForStorage using the new rlp.EncoderBuffer API.

The change is much less transparent than I wanted it to be, because Header and
StateAccount now have an EncodeRLP method defined with pointer receiver. It
used to be possible to encode non-pointer values of these types, but the new
method prevents that and attempting to encode unadressable values (even if
part of another value) will return an error. The error can be surprising and may
pop up in places that previously didn't expect any errors.

To make things work, I also needed to update all code paths (mostly in unit tests)
that lead to encoding of non-pointer values, and pass a pointer instead.

Benchmark results:

    name                             old time/op    new time/op    delta
    EncodeRLP/legacy-header-8           328ns ± 0%     237ns ± 1%   -27.63%  (p=0.000 n=8+8)
    EncodeRLP/london-header-8           353ns ± 0%     247ns ± 1%   -30.06%  (p=0.000 n=8+8)
    EncodeRLP/receipt-for-storage-8     237ns ± 0%     123ns ± 0%   -47.86%  (p=0.000 n=8+7)
    EncodeRLP/receipt-full-8            297ns ± 0%     301ns ± 1%    +1.39%  (p=0.000 n=8+8)

    name                             old speed      new speed      delta
    EncodeRLP/legacy-header-8        1.66GB/s ± 0%  2.29GB/s ± 1%   +38.19%  (p=0.000 n=8+8)
    EncodeRLP/london-header-8        1.55GB/s ± 0%  2.22GB/s ± 1%   +42.99%  (p=0.000 n=8+8)
    EncodeRLP/receipt-for-storage-8  38.0MB/s ± 0%  64.8MB/s ± 0%   +70.48%  (p=0.000 n=8+7)
    EncodeRLP/receipt-full-8          910MB/s ± 0%   897MB/s ± 1%    -1.37%  (p=0.000 n=8+8)

    name                             old alloc/op   new alloc/op   delta
    EncodeRLP/legacy-header-8           0.00B          0.00B           ~     (all equal)
    EncodeRLP/london-header-8           0.00B          0.00B           ~     (all equal)
    EncodeRLP/receipt-for-storage-8     64.0B ± 0%      0.0B       -100.00%  (p=0.000 n=8+8)
    EncodeRLP/receipt-full-8             320B ± 0%      320B ± 0%      ~     (all equal)
2022-02-18 08:10:26 +01:00
zhiqiangxu 6c3513c077
p2p: reduce the scope of variable dialPubkey (#24385)
dialPubkey isn't used anywhere else after dialDest.Load, so it should be safe to
restrict its scope to the if clause.
2022-02-14 12:05:48 +01:00
Felföldi Zsolt fc01a7ce8e
les/vflux/client, p2p/nodestate: fix data races (#24058)
Fixes #23848
2021-12-14 11:34:50 +01:00
Arvid Hast acb0f7a67b
p2p/simulations: improve README language (#24051) 2021-12-06 12:25:42 +01:00
Taeik Lim 85064ed09b
all: fix 'the the' in comments (#24036) 2021-12-02 15:42:09 +01:00
Evolution404 8fbe0b9b68
p2p/enr: reduce allocation in Record.encode (#24034) 2021-12-02 10:55:01 +01:00
Péter Szilágyi c10a0a62c3
eth: request id dispatcher and direct req/reply APIs (#23576)
* eth: request ID based message dispatcher

* eth: fix dispatcher cancellation, rework fetchers idleness tracker

* eth/downloader: drop peers who refuse to serve advertised chains
2021-11-26 13:26:03 +02:00
Serhat Şevki Dinçer d15e423562
p2p/enode: store local port number as uint16 (#23926) 2021-11-23 15:14:08 +01:00
Ikko Ashimine fb7da82dde
p2p: fix typo in v4wire.go
Neigbors -> Neighbors
2021-11-10 22:18:12 +09:00
Martin Holst Swende 31870a59ff
eth/filters, p2p/simulations: fix benchmarks (#23806)
Some benchmarks in eth/filters were not good: they weren't reproducible, relying on geth chaindata to be present.

Another one was rejected because the receipt was lacking a backing transcation.

The p2p simulation benchmark had a lot of the warnings below, due to the framework calling both
Stop() and Close(). Apparently, the simulated adapter is the only implementation which has a Close(),
and there is no need to call both Stop and Close on it.
2021-10-29 14:37:00 +02:00
Guillaume Ballet 0183256e7f
all: fix warning flagging the use of DeepEqual on error (#23624)
* core: fix warning flagging the use of DeepEqual on error

* apply the same change everywhere possible

* revert change that was committed by mistake

* fix build error

* Update config.go

* revert changes to ConfigCompatError

* review feedback

Co-authored-by: Felix Lange <fjl@twurst.com>
2021-10-19 17:06:47 +02:00
Péter Szilágyi 6ef3a16869
p2p/enode: use unix timestamp as base ENR sequence number (#19903)
This PR ensures that wiping all data associated with a node (apart from its nodekey)
will not generate already used sequence number for the ENRs, since all remote nodes
would reject them until they out-number the previously published largest one.

The big complication with this scheme is that every local update to the ENR can
potentially bump the sequence number by one. In order to ensure that local updates
do not outrun the clock, the sequence number is a millisecond-precision timestamp,
and updates are throttled to occur at most once per millisecond.

Co-authored-by: Felix Lange <fjl@twurst.com>
2021-09-07 12:36:48 +02:00
Felix Lange 8a134014b4
all: add go:build lines (#23468)
Generated by go1.17 fmt ./...
2021-08-25 18:46:29 +02:00
Marius van der Wijden 8dbf261fd9
p2p, p2p/enode: fix data races (#23434)
In p2p/dial.go, conn.flags was accessed without using sync/atomic.
This race is fixed by removing the access.

In p2p/enode/iter_test.go, a similar race is resolved by writing the field atomically.

Co-authored-by: Felix Lange <fjl@twurst.com>
2021-08-24 12:22:56 +02:00
baptiste-b-pegasys 860184d542
p2p: remove term "whitelist" (#23295)
Co-authored-by: Felix Lange <fjl@twurst.com>
2021-07-29 17:50:18 +02:00
Evolution404 8f11d279d2
p2p/simulations: fix unlikely crash in probabilistic connect (#23200)
When the nodeCount is less than 10, it will panic with the out of bound error.
How about we just skip this round, when rand1 and rand2 are equal?
2021-07-29 16:03:50 +02:00
Evolution404 5afc82de6e
p2p: fix array out of bounds issue (#23165) 2021-07-06 09:33:51 +02:00
Ahyun 4fcc93d922
p2p/server: fix method name in comment (#23123) 2021-06-29 12:14:47 +03:00
ForLina dde6f1e92d
p2p/enode: fix method doc (#23115)
This is an obvious spelling error

Co-authored-by: liuyaxiong <liuyaxiong@inspur.com>
2021-06-28 10:48:17 +03:00
Felix Lange 427175153c
p2p/msgrate: return capacity as integer, clamp to max uint32 (#22943)
* p2p/msgrate: return capacity as integer

* eth/protocols/snap: remove conversions

* p2p/msgrate: add overflow test

* p2p/msgrate: make the capacity overflow test actually overflow

* p2p/msgrate: clamp capacity to max int32

* p2p/msgrate: fix min/max confusion
2021-05-27 19:43:55 +03:00
Felix Lange 7194c847b6
p2p/rlpx: reduce allocation and syscalls (#22899)
This change significantly improves the performance of RLPx message reads
and writes. In the previous implementation, reading and writing of
message frames performed multiple reads and writes on the underlying
network connection, and allocated a new []byte buffer for every read.

In the new implementation, reads and writes re-use buffers, and perform
much fewer system calls on the underlying connection. This doubles the
theoretically achievable throughput on a single connection, as shown by
the benchmark result:

    name             old speed      new speed       delta
    Throughput-8     70.3MB/s ± 0%  155.4MB/s ± 0%  +121.11%  (p=0.000 n=9+8)

The change also removes support for the legacy, pre-EIP-8 handshake encoding.
As of May 2021, no actively maintained client sends this format.
2021-05-27 10:19:13 +02:00
meowsbits 750115ff39
p2p/nat: skip TestUPNP in non-CI environments if discover fails (#22877)
Fixes #21476
2021-05-25 22:37:30 +02:00
Felix Lange 836c647bdd
eth: unregister peer only when handler exits (#22908)
This removes the error log message that says 

    Ethereum peer removal failed ... err="peer not registered"

The error happened because removePeer was called multiple
times: once to disconnect the peer, and another time when the
handler exited. With this change, removePeer now has the sole
purpose of disconnecting the peer. Unregistering happens exactly
once, when the handler exits.
2021-05-25 22:20:36 +02:00
Felix Lange 16bc57438b
p2p/dnsdisc: fix crash when iterator closed before first call to Next (#22906) 2021-05-20 09:24:41 +02:00
Péter Szilágyi 3e795881ea
eth, p2p/msgrate: move peer QoS tracking to its own package and use it for snap (#22876)
This change extracts the peer QoS tracking logic from eth/downloader, moving
it into the new package p2p/msgrate. The job of msgrate.Tracker is determining
suitable timeout values and request sizes per peer.

The snap sync scheduler now uses msgrate.Tracker instead of the hard-coded 15s
timeout. This should make the sync work better on network links with high latency.
2021-05-19 14:09:03 +02:00
Felix Lange 3e6f46caec
p2p/discover/v4wire: use optional RLP field for EIP-868 seq (#22842)
This changes the definitions of Ping and Pong, adding an optional field
for the sequence number. This field was previously encoded/decoded using
the "tail" struct tag, but using "optional" is much nicer.
2021-05-18 11:48:41 +02:00
Felix Lange b8040a430e
cmd/utils: use eth DNS tree for snap discovery (#22808)
This removes auto-configuration of the snap.*.ethdisco.net DNS discovery tree.
Since measurements have shown that > 75% of nodes in all.*.ethdisco.net support
snap, we have decided to retire the dedicated index for snap and just use the eth
tree instead.

The dial iterators of eth and snap now use the same DNS tree in the default configuration,
so both iterators should use the same DNS discovery client instance. This ensures that
the record cache and rate limit are shared. Records will not be requested multiple times.

While testing the change, I noticed that duplicate DNS requests do happen even
when the client instance is shared. This is because the two iterators request the tree
root, link tree root, and first levels of the tree in lockstep. To avoid this problem, the
change also adds a singleflight.Group instance in the client. When one iterator
attempts to resolve an entry which is already being resolved, the singleflight object
waits for the existing resolve call to finish and returns the entry to both places.
2021-05-04 11:29:32 +02:00
Péter Szilágyi ff3535e8e0
p2p/tracker: only reschedule wake if previous didn't run 2021-04-27 21:47:59 +03:00
Martin Holst Swende 45fca44c24
p2p/tracker: properly clean up fulfilled requests 2021-04-27 18:09:34 +02:00
Nishant Das 34f3c9539b
p2p/discover: improve discv5 handling of IPv4-in-IPv6 addresses (#22703)
When receiving PING from an IPv4 address over IPv6, the implementation sent
back a IPv4-in-IPv6 address. This change makes it reflect the IPv4 address.
2021-04-23 18:18:10 +02:00
Péter Szilágyi 1fb9a6dd32
eth/protocols, prp/tracker: add support for req/rep rtt tracking (#22608)
* eth/protocols, prp/tracker: add support for req/rep rtt tracking

* p2p/tracker: sanity cap the number of pending requests

* pap/tracker: linter <3

* p2p/tracker: disable entire tracker if no metrics are enabled
2021-04-22 11:42:46 +03:00
Felföldi Zsolt 2d89fe0883
les: move client pool to les/vflux/server (#22495)
* les: move client pool to les/vflux/server

* les/vflux/server: un-expose NodeBalance, remove unused fn, fix bugs

* tests/fuzzers/vflux: add ClientPool fuzzer

* les/vflux/server: fixed balance tests

* les: rebase fix

* les/vflux/server: fixed more bugs

* les/vflux/server: unexported NodeStateMachine fields and flags

* les/vflux/server: unexport all internal components and functions

* les/vflux/server: fixed priorityPool test

* les/vflux/server: polish balance

* les/vflux/server: fixed mutex locking error

* les/vflux/server: priorityPool bug fixed

* common/prque: make Prque wrap-around priority handling optional

* les/vflux/server: rename funcs, small optimizations

* les/vflux/server: fixed timeUntil

* les/vflux/server: separated balance.posValue and negValue

* les/vflux/server: polish setup

* les/vflux/server: enforce capacity curve monotonicity

* les/vflux/server: simplified requestCapacity

* les/vflux/server: requestCapacity with target range, no iterations in SetCapacity

* les/vflux/server: minor changes

* les/vflux/server: moved default factors to balanceTracker

* les/vflux/server: set inactiveFlag in priorityPool

* les/vflux/server: moved related metrics to vfs package

* les/vflux/client: make priorityPool temp state logic cleaner

* les/vflux/server: changed log.Crit to log.Error

* add vflux fuzzer to oss-fuzz

Co-authored-by: rjl493456442 <garyrong0905@gmail.com>
2021-04-06 20:42:50 +02:00
Péter Szilágyi 6d7ff6acea
eth/protocols, metrics, p2p: add handler performance metrics 2021-03-26 14:00:06 +02:00
Felix Lange ab8fd4d005
p2p/dnsdisc: rate limit resolving before checking cache (#22566)
This makes the rate limit apply regardless of whether the node is
already cached.
2021-03-24 14:37:20 +02:00
Chen Quan 15e6c27f8b
p2p: fix minor typo and remove fd parameter in checkInboundConn (#22547) 2021-03-24 13:18:29 +01:00
Martin Holst Swende 5bc0343ed3
p2p/dnsdisc: fix flaw in dns size calculation (#22533)
This fixes the calculation of the tree branch factor. With the new
formula, we now creat at most 13 children instead of 30, ensuring
the TXT record size will be below 370 bytes.
2021-03-19 13:20:27 +01:00