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* dex: redesign p2p network topologySonic2019-06-121-106/+86
| | | | | | | | | | - Let p2p server support direct connection and group connection. - Introduce node meta table to maintain IP of all nodes in node set, in memory and let nodes in the network can sync this table. - Let peerSet able to manage direct connections to notary set and dkg set. The mechanism to refresh the network topology when configuration round change is not done yet.
* Change import go github.com/dexon-foundation/dexonWei-Ning Huang2019-06-121-5/+5
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* p2p: implement AddNotaryPeer and RemoveNotaryPeerSonic2019-06-121-3/+118
| | | | | | | | | | AddNotaryPeer adds node to static node set so that server will maintain the connection with the notary node. AddNotaryPeer also sets the notaryConn flag to allow the node to always connect, even if the slot are full. RemoveNotaryPeer removes node from static, then disconnect and unsets the notaryConn flag.
* vendor, crypto, swarm: switch over to upstream sha3 packageDave McGregor2019-01-041-3/+3
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* p2p, p2p/discover: add signed ENR generation (#17753)Felix Lange2018-10-121-10/+16
| | | | | | | | | | | | | | | This PR adds enode.LocalNode and integrates it into the p2p subsystem. This new object is the keeper of the local node record. For now, a new version of the record is produced every time the client restarts. We'll make it smarter to avoid that in the future. There are a couple of other changes in this commit: discovery now waits for all of its goroutines at shutdown and the p2p server now closes the node database after discovery has shut down. This fixes a leveldb crash in tests. p2p server startup is faster because it doesn't need to wait for the external IP query anymore.
* all: new p2p node representation (#17643)Felix Lange2018-09-251-64/+66
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Package p2p/enode provides a generalized representation of p2p nodes which can contain arbitrary information in key/value pairs. It is also the new home for the node database. The "v4" identity scheme is also moved here from p2p/enr to remove the dependency on Ethereum crypto from that package. Record signature handling is changed significantly. The identity scheme registry is removed and acceptable schemes must be passed to any method that needs identity. This means records must now be validated explicitly after decoding. The enode API is designed to make signature handling easy and safe: most APIs around the codebase work with enode.Node, which is a wrapper around a valid record. Going from enr.Record to enode.Node requires a valid signature. * p2p/discover: port to p2p/enode This ports the discovery code to the new node representation in p2p/enode. The wire protocol is unchanged, this can be considered a refactoring change. The Kademlia table can now deal with nodes using an arbitrary identity scheme. This requires a few incompatible API changes: - Table.Lookup is not available anymore. It used to take a public key as argument because v4 protocol requires one. Its replacement is LookupRandom. - Table.Resolve takes *enode.Node instead of NodeID. This is also for v4 protocol compatibility because nodes cannot be looked up by ID alone. - Types Node and NodeID are gone. Further commits in the series will be fixes all over the the codebase to deal with those removals. * p2p: port to p2p/enode and discovery changes This adapts package p2p to the changes in p2p/discover. All uses of discover.Node and discover.NodeID are replaced by their equivalents from p2p/enode. New API is added to retrieve the enode.Node instance of a peer. The behavior of Server.Self with discovery disabled is improved. It now tries much harder to report a working IP address, falling back to 127.0.0.1 if no suitable address can be determined through other means. These changes were needed for tests of other packages later in the series. * p2p/simulations, p2p/testing: port to p2p/enode No surprises here, mostly replacements of discover.Node, discover.NodeID with their new equivalents. The 'interesting' API changes are: - testing.ProtocolSession tracks complete nodes, not just their IDs. - adapters.NodeConfig has a new method to create a complete node. These changes were needed to make swarm tests work. Note that the NodeID change makes the code incompatible with old simulation snapshots. * whisper/whisperv5, whisper/whisperv6: port to p2p/enode This port was easy because whisper uses []byte for node IDs and URL strings in the API. * eth: port to p2p/enode Again, easy to port because eth uses strings for node IDs and doesn't care about node information in any way. * les: port to p2p/enode Apart from replacing discover.NodeID with enode.ID, most changes are in the server pool code. It now deals with complete nodes instead of (Pubkey, IP, Port) triples. The database format is unchanged for now, but we should probably change it to use the node database later. * node: port to p2p/enode This change simply replaces discover.Node and discover.NodeID with their new equivalents. * swarm/network: port to p2p/enode Swarm has its own node address representation, BzzAddr, containing both an overlay address (the hash of a secp256k1 public key) and an underlay address (enode:// URL). There are no changes to the BzzAddr format in this commit, but certain operations such as creating a BzzAddr from a node ID are now impossible because node IDs aren't public keys anymore. Most swarm-related changes in the series remove uses of NewAddrFromNodeID, replacing it with NewAddr which takes a complete node as argument. ToOverlayAddr is removed because we can just use the node ID directly.
* p2p: Wrap conn.flags ops with atomic.Load/StoreAndrey Petrov2018-06-221-2/+0
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* p2p: Test for peer.rw.flags race conditionsAndrey Petrov2018-06-221-11/+18
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* p2p: Attempt to race check peer.Inbound() in TestServerDialAndrey Petrov2018-06-221-0/+3
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* p2p: More tests for AddTrustedPeer/RemoveTrustedPeerAndrey Petrov2018-06-221-8/+52
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* p2p: Test for MaxPeers=0 and TrustedPeer overrideAndrey Petrov2018-06-221-0/+54
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* p2p/simulations: various stability fixes (#15198)Lewis Marshall2017-12-011-1/+9
| | | | | | | | | | | | | | | | | | | | | | | | p2p/simulations: introduce dialBan - Refactor simulations/network connection getters to support avoiding simultaneous dials between two peers If two peers dial simultaneously, the connection will be dropped to help avoid that, we essentially lock the connection object with a timestamp which serves as a ban on dialing for a period of time (dialBanTimeout). - The connection getter InitConn can be wrapped and passed to the nodes via adapters.NodeConfig#Reachable field and then used by the respective services when they initiate connections. This massively stablise the emerging connectivity when running with hundreds of nodes bootstrapping a network. p2p: add Inbound public method to p2p.Peer p2p/simulations: Add server id to logs to support debugging in-memory network simulations when multiple peers are logging. p2p: SetupConn now returns error. The dialer checks the error and only calls resolve if the actual TCP dial fails.
* p2p: add network simulation framework (#14982)Lewis Marshall2017-09-251-1/+1
| | | | | | 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.
* all: disable log message colors outside of gethFelix Lange2017-02-271-1/+1
| | | | Also tweak behaviour so colors are only enabled when stderr is a terminal.
* all: blidly swap out glog to our log15, logs need reworkPéter Szilágyi2017-02-231-2/+1
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* node, p2p, internal: Add ability to remove peers via admin interfaceFirescar962016-07-151-0/+2
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* node, p2p: move network config out of ServerFelix Lange2016-05-181-16/+23
| | | | This silences a go vet message about copying p2p.Server in package node.
* p2p: improve readability of dial task scheduling codeFelix Lange2016-05-031-0/+50
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* all: fix go vet warningsFelix Lange2016-04-151-1/+1
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* all: fix license headers one more timeFelix Lange2015-07-241-1/+1
| | | | I forgot to update one instance of "go-ethereum" in commit 3f047be5a.
* all: update license headers to distiguish GPL/LGPLFelix Lange2015-07-231-4/+4
| | | | | All code outside of cmd/ is licensed as LGPL. The headers now reflect this by calling the whole work "the go-ethereum library".
* all: update license informationFelix Lange2015-07-071-0/+16
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* p2p: fix a close race in the dial testPéter Szilágyi2015-06-101-1/+2
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* p2p: new dialer, peer management without locksFelix Lange2015-05-251-314/+270
| | | | | | | | | | | | | | | | | | 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.
* p2p: delete Server.BroadcastFelix Lange2015-05-251-42/+0
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* p2p: remove testlogFelix Lange2015-05-141-15/+0
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* p2p: fix disconnect at capacityFelix Lange2015-05-081-7/+14
| | | | | | | 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.
* p2p: increase the handshake timeout in the testsPéter Szilágyi2015-05-071-2/+2
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* cmd, eth, p2p: introduce pending peer cli arg, add testsPéter Szilágyi2015-05-071-0/+130
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* fixed merge issueobscuren2015-05-071-3/+153
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| * eth, p2p: add trusted node list beside static listPéter Szilágyi2015-05-041-19/+17
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| * p2p: add static node dialing testPéter Szilágyi2015-05-041-0/+88
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| * eth, p2p: rename trusted nodes to static, drop inbound extra slotsPéter Szilágyi2015-05-011-5/+7
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| * cmd, eth, p2p: fix review issues enumerated by FelixPéter Szilágyi2015-04-301-1/+1
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| * p2p: add trust check to handshake, test privileged connectivityPéter Szilágyi2015-04-301-3/+65
| | | | | | | | | | Conflicts: p2p/server_test.go
| * cmd/geth, cmd/mist, cmd/utils, eth, p2p: support trusted peersPéter Szilágyi2015-04-301-1/+1
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* | p2p/discover: new endpoint formatFelix Lange2015-04-301-1/+1
|/ | | | | | 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.
* p2p: improve disconnect signaling at handshake timeFelix Lange2015-04-101-1/+57
| | | | | | | 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.
* p2p: use package rlp to encode messagesFelix Lange2015-03-191-1/+1
| | | | | | | | | | 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.
* p2p: msg.Payload contains list dataFelix Lange2015-03-041-1/+1
| | | | | | | | | 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.
* p2p: use RLPx frames for messagingFelix Lange2015-03-041-4/+9
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* p2p: disable encryption handshakeFelix Lange2015-02-191-5/+7
| | | | | | 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.
* cmd/mist, eth, javascript, p2p: use Node URLs for peer suggestionsFelix Lange2015-02-071-1/+1
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* p2p: fixes for actual connectionsFelix Lange2015-02-071-0/+1
| | | | The unit test hooks were turned on 'in production'.
* p2p/discover: add node URL functions, distinguish TCP/UDP portsFelix Lange2015-02-071-2/+1
| | | | | The discovery RPC protocol does not yet distinguish TCP and UDP ports. But it can't hurt to do so in our internal model.
* p2p: integrate p2p/discoverFelix Lange2015-02-061-37/+48
| | | | | | | | | | | | 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
* Mergeobscuren2015-01-061-1/+1
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* p2p: API cleanup and PoC 7 compatibilityFelix Lange2014-11-221-258/+130
| | | | | Whoa, one more big commit. I didn't manage to untangle the changes while working towards compatibility.
* p2p: disable failing Server tests for nowFelix Lange2014-11-221-0/+3
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* p2p: rework protocol APIFelix Lange2014-11-221-63/+141
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* initial commit of p2p packagezelig2014-10-231-0/+208
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