Commit Graph

15 Commits

Author SHA1 Message Date
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
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
ee301c750b
all: fix docstrings 2022-10-04 09:18:02 +02:00
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
Ha ĐANG
a9ef135e2d
p2p/discover: apply netrestrict in discv5 response handler (#25304) 2022-07-15 18:37:51 +02:00
Seungbae.yu
b3fc9574ec
p2p/discover: fix typos in comments (#25272) 2022-07-10 10:15:54 +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
Felix Lange
9244d5cd61
all: update license headers and AUTHORS from git history (#24947) 2022-05-24 20:39:40 +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
Felföldi Zsolt
d96870428f
les: UDP pre-negotiation of available server capacity (#22183)
This PR implements the first one of the "lespay" UDP queries which
is already useful in itself: the capacity query. The server pool is making
use of this query by doing a cheap UDP query to determine whether it is
worth starting the more expensive TCP connection process.
2021-03-01 10:24:20 +01:00
Nishant Das
429e7141f2
p2p/discover: fix deadlock in discv5 message dispatch (#21858)
This fixes a deadlock that could occur when a response packet arrived
after a call had already received enough responses and was about to
signal completion to the dispatch loop.

Co-authored-by: Felix Lange <fjl@twurst.com>
2020-11-25 22:16:36 +01:00
Felix Lange
524aaf5ec6
p2p/discover: implement v5.1 wire protocol (#21647)
This change implements the Discovery v5.1 wire protocol and
also adds an interactive test suite for this protocol.
2020-10-14 12:28:17 +02:00
Nishant Das
7a63faf734
p2p/discover: add helper methods to UDPv5 (#20918)
This adds two new methods to UDPv5, AllNodes and LocalNode.

AllNodes returns all the nodes stored in the local table; this is
useful for the purposes of metrics collection and also debugging any
potential issues with other discovery v5 implementations.

LocalNode returns the local node object. The reason for exposing this
is so that users can modify and set/delete new key-value entries in
the local record.
2020-04-16 15:58:37 +02:00
Felix Lange
b7394d7942
p2p/discover: add initial discovery v5 implementation (#20750)
This adds an implementation of the current discovery v5 spec.

There is full integration with cmd/devp2p and enode.Iterator in this
version. In theory we could enable the new protocol as a replacement of
discovery v4 at any time. In practice, there will likely be a few more
changes to the spec and implementation before this can happen.
2020-04-08 09:57:23 +02:00