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131 Commits

Author SHA1 Message Date
Jeffrey Wilcke 269c5c7107 Revert "fdtrack: temporary hack for tracking file descriptor usage" 
This reverts commit 5c949d3b3b.
 2015-08-19 21:46:01 +02:00
Felix Lange edccc7ae34 p2p: continue listening after temporary errors 2015-08-19 14:39:04 +02:00
Felix Lange 5c949d3b3b fdtrack: temporary hack for tracking file descriptor usage 
Package fdtrack logs statistics about open file descriptors.
This should help identify the source of #1549.
 2015-08-04 03:10:27 +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 bdae4fd573 all: add some godoc synopsis comments 2015-07-07 14:12:45 +02:00
Felix Lange ea54283b30 all: update license information 2015-07-07 14:12:44 +02:00
Péter Szilágyi 6994a3daaa p2p: instrument P2P networking layer 2015-06-24 18:33:33 +03:00
Felix Lange 6fb810adaa p2p: throttle all discovery lookups 
Lookup calls would spin out of control when network connectivity was
lost. The throttling that was in place only took effect when the table
returned zero results, which doesn't happen very often.

The new throttling should not have a negative impact when the host is
online. Lookups against the network take some time and dials for all
results must complete or hit the cache before a new one is started. This
usually takes longer than four seconds, leaving online lookups
unaffected.

Fixes #1296
 2015-06-22 01:07:58 +02:00
Felix Lange 3239aca69b p2p: bump global write timeout to 20s 
The previous value of 5 seconds causes timeouts for legitimate messages
if large messages are sent.
 2015-06-09 17:07:10 +02:00
Péter Szilágyi 68898a4d6b p2p: fix Self() panic if listening is disabled 2015-05-26 19:16:05 +03:00
Péter Szilágyi e1a0ee8fc5 cmd/geth, cmd/utils, eth, p2p: pass and honor a no discovery flag 2015-05-26 19:07:24 +03:00
Péter Szilágyi 278183c7e7 eth, p2p: start the p2p server even if maxpeers == 0 2015-05-26 17:49:37 +03:00
Felix Lange 9e1fd70b50 p2p: decrease frameReadTimeout to 30s 
This detects hanging connections sooner. We send a ping every 15s and
other implementation have similar limits.
 2015-05-25 01:17:14 +02:00
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 7efeb4bd96 p2p: bump maxAcceptConns and defaultDialTimout 
On the test network, we've seen that it becomes harder to connect
if the queues are so short.
 2015-05-14 03:48:28 +02:00
Felix Lange d4f0a67323 p2p: drop connections with no matching protocols 2015-05-08 16:09:55 +02:00
Felix Lange 9c0f36c46d p2p: use maxDialingConns instead of maxAcceptConns as dial limit 2015-05-08 16:09:55 +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 4d5a719f25 cmd, eth, p2p: introduce pending peer cli arg, add tests 2015-05-07 15:30:56 +03:00
Péter Szilágyi af93217775 p2p: reduce the concurrent handshakes to 10/10 in/out 2015-05-07 15:22:09 +03:00
Péter Szilágyi 2060bc8bac p2p: fix dial throttling race condition 2015-05-07 15:22:08 +03:00
Péter Szilágyi 29fef349ef p2p: fix a dialing race in the throttler 2015-05-07 15:22:08 +03:00
Péter Szilágyi 3953bf0031 p2p: limit the outbound dialing too 2015-05-07 15:22:08 +03:00
Jeffrey Wilcke a0cb1945ae Merge pull request #866 from fjl/p2p-last-minute 
Last minute p2p fixes
 2015-05-06 14:49:52 -07:00
Felix Lange 3e2a928caa p2p: stop dialing at half the maximum peer count 2015-05-06 23:44:51 +02:00
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 e82ddd9198 p2p: correct a leftover trusted -> static 2015-04-30 19:34:33 +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 14f32a0c3a p2p: reduce the severity of a debug log 2015-04-30 16:04:09 +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
Péter Szilágyi 8646365b42 cmd/bootnode, eth, p2p, p2p/discover: use a fancier db design 2015-04-24 18:04:41 +03:00
Péter Szilágyi 6def110c37 cmd/bootnode, eth, p2p, p2p/discover: clean up the seeder and mesh into eth. 2015-04-24 11:33:55 +03:00
Péter Szilágyi 5f735d6fce cmd, eth, p2p, p2p/discover: init and clean up the seed cache 2015-04-24 11:23:20 +03:00
Felix Lange 635b66acdc p2p: return zero node from Self if the server is not running 
This helps with fixing the tests for cmd/geth to run without networking.
 2015-04-22 12:31:19 +02:00
Felix Lange 5528abc795 p2p: fix the dial timer 
The dial timer was not reset properly when the peer count reached
MaxPeers.
 2015-04-17 08:17:01 +02:00
obscuren 474aa924ca p2p: added limiter function to limit package broadcasting 2015-04-14 12:47:31 +02:00
Felix Lange b9929d289d p2p: fix unsynchronized map access during Server shutdown 
removePeer can be called even after listenLoop and dialLoop have returned.
 2015-04-13 17:37:32 +02:00
Felix Lange c5332537f5 p2p: limit number of lingering inbound pre-handshake connections 
This is supposed to apply some back pressure so Server is not accepting
more connections than it can actually handle. The current limit is 50.
This doesn't really need to be configurable, but we'll see how it
behaves in our test nodes and adjust accordingly.
 2015-04-10 17:24:41 +02:00
Felix Lange 56977c225e p2p: use RLock instead of Lock for pre-dial checks 2015-04-10 17:23:09 +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 145330fdf2 p2p: properly decrement peer wait group counter for setup errors 2015-04-10 13:26:27 +02:00
Felix Lange 22d1f0faf1 p2p: improve peer selection logic 
This commit introduces a new (temporary) peer selection
strategy based on random lookups.

While we're here, also implement the TODOs in dialLoop.
 2015-04-10 13:26:27 +02:00
obscuren 688d118c7e Updated logging 2015-04-07 14:57:04 +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
zelig b3e133dd15 Merge branch 'frontier/js' into frontier/nodeadmin.js 2015-03-16 22:50:29 +07:00
obscuren b523441361 Moved ethutil => common 2015-03-16 11:27:38 +01:00
zelig e150832734 p2p: server>discover table Self=Node exported 2015-03-15 13:38:41 +07:00
Taylor Gerring 485e37e889 Move MakeName to ethutil 2015-03-11 14:29:07 -05:00
Felix Lange 215c763d53 eth, p2p: delete p2p.Blacklist 
It is unused and untested right now. We can
bring it back later if required.
 2015-03-04 16:54:36 +01:00
Felix Lange 22659a7fea p2p: restore read/write timeouts 
They got lost in the transition to rlpxFrameRW.
 2015-03-04 16:42:00 +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 3719db352a p2p: emit JSON connect/disconnect events 2015-02-19 17:09:33 +01:00
Felix Lange dd871e791c p2p: initialize Server.ourHandshake before accepting connections 2015-02-19 17:08:18 +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
obscuren 09e53367a2 Use a mutex write-lock for a write operation 2015-02-15 02:13:24 +01:00
Felix Lange 5cc1256fd6 p2p: ensure we don't dial ourself 
addPeer doesn't allow self connects, but we can avoid opening
connections in the first place.
 2015-02-13 15:06:47 +01:00
Felix Lange 7101f44998 p2p: add I/O timeout for encrytion handshake 2015-02-13 15:06:47 +01:00
Felix Lange 22ee366ed6 p2p: fix goroutine leak for invalid peers 
The deflect logic called Disconnect on the peer, but the peer never ran
and wouldn't process the disconnect request.
 2015-02-13 15:06:46 +01:00
Felix Lange 170eb3ac68 p2p/discover: map listening port using configured mechanism 2015-02-13 11:39:32 +01:00
Felix Lange d0a2e655c9 cmd/ethereum, cmd/mist, eth, p2p: use package p2p/nat 
This deletes the old NAT implementation.
 2015-02-13 11:39:31 +01:00
Felix Lange 028775a086 cmd/ethereum, cmd/mist: add flag for discovery bootstrap nodes 2015-02-07 00:52:49 +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 8d1637f567 Moved connection errors to DebugDetail level 2015-01-19 11:21:46 +01:00
obscuren 6abf8ef78f Merge 2015-01-05 17:10:42 +01:00
Felix Lange aa3b91b802 p2p: fix call to Server.removePeer (might help with #209) 2014-12-15 22:36:59 +01:00
obscuren 56dac74f71 made mist in a compilable, workable state using the new refactored packages 2014-12-15 13:00:29 +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 f38052c499 p2p: rework protocol API 2014-11-21 21:52:45 +01:00
Felix Lange f3473312ba all: fix rename breakage 2014-10-31 18:52:58 +01:00
zelig 771fbcc02e initial commit of p2p package 2014-10-23 16:57:54 +01:00