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path: root/p2p/peer.go
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* p2p: new dialer, peer management without locksFelix Lange2015-05-251-25/+30
| | | | | | | | | | | | | | | | | | 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: decrease maximum message size for devp2p to 1kBFelix Lange2015-05-251-1/+1
| | | | | | The previous limit was 10MB which is unacceptable for all kinds of reasons, the most important one being that we don't want to allow the remote side to make us allocate 10MB at handshake time.
* p2p: delete Server.BroadcastFelix Lange2015-05-251-14/+0
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* p2p: log remote reason when disconnect is requestedFelix Lange2015-05-141-2/+3
| | | | | | The returned reason is currently not used except for the log message. This change makes the log messages a bit more useful. The handshake code also returns the remote reason.
* p2p: drop connections with no matching protocolsFelix Lange2015-05-081-0/+12
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* p2p, whisper: use glog for peer-level loggingFelix Lange2015-05-071-13/+8
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* p2p, p2p/discover: protocol version 4Felix Lange2015-04-301-1/+1
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* p2p: added received at to peer messageobscuren2015-04-301-0/+1
| | | | | p2p.Msg.ReceivedAt can be used for determining block propagation from begining to end.
* p2p: fix yet another disconnect hangFelix Lange2015-04-131-22/+8
| | | | | | | | | Peer.readLoop will only terminate if the connection is closed. Fix the hang by closing the connection before waiting for readLoop to terminate. This also removes the british disconnect procedure where we're waiting for the remote end to close the connection. I have confirmed with @subtly that cpp-ethereum doesn't adhere to it either.
* p2p: don't mess with the socket deadline in Peer.readLoopFelix Lange2015-04-101-1/+0
| | | | netWrapper already sets a read deadline in ReadMsg.
* p2p: fix Peer shutdown deadlocksFelix Lange2015-04-101-62/+69
| | | | | | | | | | There were multiple synchronization issues in the disconnect handling, all caused by the odd special-casing of Peer.readLoop errors. Remove the special handling of read errors and make readLoop part of the Peer WaitGroup. Thanks to @Gustav-Simonsson for pointing at arrows in a diagram and playing rubber-duck.
* p2p: log disconnect requestsFelix Lange2015-03-191-0/+1
| | | | This helps a lot with debugging.
* p2p: use package rlp to encode messagesFelix Lange2015-03-191-3/+3
| | | | | | | | | | 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: restore read/write timeoutsFelix Lange2015-03-041-1/+2
| | | | They got lost in the transition to rlpxFrameRW.
* p2p: msg.Payload contains list dataFelix Lange2015-03-041-2/+2
| | | | | | | | | 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 Lange2015-03-041-9/+12
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* p2p: enable devp2p pingFelix Lange2015-02-191-11/+26
| | | | This should prevent connection drops.
* p2p: disable encryption handshakeFelix Lange2015-02-191-170/+59
| | | | | | 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.
* p2p: bump devp2p protcol version to 3Felix Lange2015-02-131-1/+1
| | | | For compatibility with cpp-ethereum
* p2p: handle disconnect before protocol handshakeFelix Lange2015-02-131-0/+7
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* p2p: improve read deadlinesFelix Lange2015-02-131-12/+2
| | | | | | | | There are now two deadlines, frameReadTimeout and payloadReadTimeout. The frame timeout is longer and allows for connections that are idle. The message timeout is still short and ensures that we don't get stuck in the middle of a message.
* p2p: fixes for actual connectionsFelix Lange2015-02-071-16/+21
| | | | The unit test hooks were turned on 'in production'.
* p2p: integrate p2p/discoverFelix Lange2015-02-061-326/+192
| | | | | | | | | | | | 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
* make crypto handshake calls package level, store privateKey on peer + tests okzelig2015-02-061-8/+19
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* apply handshake related improvements from p2p.crypto branchzelig2015-02-061-1/+1
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* add temporary forced session token generationzelig2015-02-061-0/+5
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* peer-level integration test for crypto handshakezelig2015-02-061-9/+13
| | | | | | | | | - add const length params for handshake messages - add length check to fail early - add debug logs to help interop testing (!ABSOLUTELY SHOULD BE DELETED LATER) - wrap connection read/writes in error check - add cryptoReady channel in peer to signal when secure session setup is finished - wait for cryptoReady or timeout in TestPeersHandshake
* important fix for peer pubkey. when taken from identity, chop first format byte!zelig2015-02-061-1/+1
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* first stab at integrating crypto in our p2pzelig2015-02-061-9/+22
| | | | | | | - abstract the entire handshake logic in cryptoId.Run() taking session-relevant parameters - changes in peer to accomodate how the encryption layer would be switched on - modify arguments of handshake components - fixed test getting the wrong pubkey but it till crashes on DH in newSession()
* integrate cryptoId into peer and connection lifecyclezelig2015-02-061-3/+18
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* initial hook for crypto handshake (void, off by default)zelig2015-02-061-0/+26
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* p2p: move peerList back into baseProtocolFelix Lange2015-01-061-22/+0
| | | | It had been moved to Peer, probably for debugging.
* Mergeobscuren2015-01-061-3/+25
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* p2p: improve and test eofSignalFelix Lange2014-12-121-5/+12
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* p2p: make Disconnect not hang for peers created with NewPeerFelix Lange2014-11-271-0/+1
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* p2p: API cleanup and PoC 7 compatibilityFelix Lange2014-11-221-44/+432
| | | | | Whoa, one more big commit. I didn't manage to untangle the changes while working towards compatibility.
* p2p: rework protocol APIFelix Lange2014-11-221-23/+6
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* initial commit of p2p packagezelig2014-10-231-0/+83
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