Commit Graph

39 Commits

Author SHA1 Message Date
Lewis Marshall 9feec51e2d p2p: add network simulation framework (#14982)
This commit introduces a network simulation framework which
can be used to run simulated networks of devp2p nodes. The
intention is to use this for testing protocols, performing
benchmarks and visualising emergent network behaviour.
2017-09-25 10:08:07 +02:00
Felix Lange d0eba23af3 all: disable log message colors outside of geth
Also tweak behaviour so colors are only enabled when stderr is a terminal.
2017-02-27 15:33:12 +01:00
Péter Szilágyi d4fd06c3dc
all: blidly swap out glog to our log15, logs need rework 2017-02-23 12:16:44 +02:00
Firescar96 4c3da0f2e1 node, p2p, internal: Add ability to remove peers via admin interface 2016-07-14 18:51:41 -04:00
Felix Lange 542b839ec7 node, p2p: move network config out of Server
This silences a go vet message about copying p2p.Server in package node.
2016-05-18 12:19:04 +02:00
Felix Lange 32bb280179 p2p: improve readability of dial task scheduling code 2016-05-02 18:50:15 +02:00
Felix Lange 6fdd0893c3 all: fix go vet warnings 2016-04-15 11:17:27 +02:00
Felix Lange bfbcfbe4a9 all: fix license headers one more time
I forgot to update one instance of "go-ethereum" in commit 3f047be5a.
2015-07-23 18:35:11 +02:00
Felix Lange 3f047be5aa all: update license headers to distiguish GPL/LGPL
All code outside of cmd/ is licensed as LGPL. The headers
now reflect this by calling the whole work "the go-ethereum library".
2015-07-22 18:51:45 +02:00
Felix Lange ea54283b30 all: update license information 2015-07-07 14:12:44 +02:00
Péter Szilágyi 1cbbfbe7fa p2p: fix a close race in the dial test 2015-06-09 22:26:26 +03:00
Felix Lange 1440f9a37a p2p: new dialer, peer management without locks
The most visible change is event-based dialing, which should be an
improvement over the timer-based system that we have at the moment.
The dialer gets a chance to compute new tasks whenever peers change or
dials complete. This is better than checking peers on a timer because
dials happen faster. The dialer can now make more precise decisions
about whom to dial based on the peer set and we can test those
decisions without actually opening any sockets.

Peer management is easier to test because the tests can inject
connections at checkpoints (after enc handshake, after protocol
handshake).

Most of the handshake stuff is now part of the RLPx code. It could be
exported or move to its own package because it is no longer entangled
with Server logic.
2015-05-25 01:17:14 +02:00
Felix Lange dbdc5fd4b3 p2p: delete Server.Broadcast 2015-05-25 01:17:14 +02:00
Felix Lange 206fe25971 p2p: remove testlog 2015-05-14 14:56:34 +02:00
Felix Lange 914e57e49b p2p: fix disconnect at capacity
With the introduction of static/trusted nodes, the peer count
can go above MaxPeers. Update the capacity check to handle this.
While here, decouple the trusted nodes check from the handshake
by passing a function instead.
2015-05-08 16:09:54 +02:00
Péter Szilágyi 8735e5addd p2p: increase the handshake timeout in the tests 2015-05-07 15:30:56 +03:00
Péter Szilágyi 4d5a719f25 cmd, eth, p2p: introduce pending peer cli arg, add tests 2015-05-07 15:30:56 +03:00
obscuren 062fa049d0 fixed merge issue 2015-05-06 22:54:21 +02:00
Péter Szilágyi 4accc187d5 eth, p2p: add trusted node list beside static list 2015-05-04 13:59:51 +03:00
Péter Szilágyi 54db54931e p2p: add static node dialing test 2015-05-04 13:08:42 +03:00
Péter Szilágyi 413ace37d3 eth, p2p: rename trusted nodes to static, drop inbound extra slots 2015-04-30 19:32:48 +03:00
Péter Szilágyi 701591b403 cmd, eth, p2p: fix review issues enumerated by Felix 2015-04-30 16:15:29 +03:00
Péter Szilágyi 1528dbc171 p2p: add trust check to handshake, test privileged connectivity
Conflicts:
	p2p/server_test.go
2015-04-30 16:06:47 +03:00
Péter Szilágyi de0549fabb cmd/geth, cmd/mist, cmd/utils, eth, p2p: support trusted peers 2015-04-30 16:03:10 +03:00
Felix Lange fc747ef4a6 p2p/discover: new endpoint format
This commit changes the discovery protocol to use the new "v4" endpoint
format, which allows for separate UDP and TCP ports and makes it
possible to discover the UDP address after NAT.
2015-04-30 14:57:33 +02:00
Felix Lange b3c058a9e4 p2p: improve disconnect signaling at handshake time
As of this commit, p2p will disconnect nodes directly after the
encryption handshake if too many peer connections are active.
Errors in the protocol handshake packet are now handled more politely
by sending a disconnect packet before closing the connection.
2015-04-10 16:57:56 +02:00
Felix Lange 5ba51594c7 p2p: use package rlp to encode messages
Message encoding functions have been renamed to catch any uses.
The switch to the new encoder can cause subtle incompatibilities.
If there are any users outside of our tree, they will at least be
alerted that there was a change.

NewMsg no longer exists. The replacements for EncodeMsg are called
Send and SendItems.
2015-03-19 15:11:02 +01:00
Felix Lange 7964f30dcb p2p: msg.Payload contains list data
With RLPx frames, the message code is contained in the
frame and is no longer part of the encoded data.

EncodeMsg, Msg.Decode have been updated to match.
Code that decodes RLP directly from Msg.Payload will need
to change.
2015-03-04 12:27:24 +01:00
Felix Lange 736e632215 p2p: use RLPx frames for messaging 2015-03-04 12:27:23 +01:00
Felix Lange 73f94f3755 p2p: disable encryption handshake
The diff is a bit bigger than expected because the protocol handshake
logic has moved out of Peer. This is necessary because the protocol
handshake will have custom framing in the final protocol.
2015-02-19 16:54:53 +01:00
Felix Lange 2cf4fed11b cmd/mist, eth, javascript, p2p: use Node URLs for peer suggestions 2015-02-07 00:46:56 +01:00
Felix Lange e34d134102 p2p: fixes for actual connections
The unit test hooks were turned on 'in production'.
2015-02-07 00:43:52 +01:00
Felix Lange 8564eb9f7e p2p/discover: add node URL functions, distinguish TCP/UDP ports
The discovery RPC protocol does not yet distinguish TCP and UDP ports.
But it can't hurt to do so in our internal model.
2015-02-07 00:12:23 +01:00
Felix Lange 5bdc115943 p2p: integrate p2p/discover
Overview of changes:

- ClientIdentity has been removed, use discover.NodeID
- Server now requires a private key to be set (instead of public key)
- Server performs the encryption handshake before launching Peer
- Dial logic takes peers from discover table
- Encryption handshake code has been cleaned up a bit
- baseProtocol is gone because we don't exchange peers anymore
- Some parts of baseProtocol have moved into Peer instead
2015-02-06 00:00:36 +01:00
obscuren 6abf8ef78f Merge 2015-01-05 17:10:42 +01:00
Felix Lange 59b63caf5e p2p: API cleanup and PoC 7 compatibility
Whoa, one more big commit. I didn't manage to untangle the
changes while working towards compatibility.
2014-11-21 21:52:45 +01:00
Felix Lange e4a601c644 p2p: disable failing Server tests for now 2014-11-21 21:52:45 +01:00
Felix Lange f38052c499 p2p: rework protocol API 2014-11-21 21:52:45 +01:00
zelig 771fbcc02e initial commit of p2p package 2014-10-23 16:57:54 +01:00