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296 Commits

Author SHA1 Message Date
Péter Szilágyi 04fcae207d p2p: if no nodes are connected, attempt dialing bootnodes (#13874) 2017-04-10 18:33:41 +02:00
Felix Lange 96ae35e2ac p2p, p2p/discover, p2p/nat: rework logging using context keys 2017-02-28 10:20:29 +01:00
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
Péter Szilágyi 189dee26c6
p2p: remove trailing newlines from log messages 2017-02-23 12:00:04 +02:00
Felix Lange 9b0af51386 crypto: add btcec fallback for sign/recover without cgo (#3680) 
* vendor: add github.com/btcsuite/btcd/btcec

* crypto: add btcec fallback for sign/recover without cgo

This commit adds a non-cgo fallback implementation of secp256k1
operations.

* crypto, core/vm: remove wrappers for sha256, ripemd160
 2017-02-18 09:24:12 +01:00
Felix Lange b9b3efb09f all: fix ineffectual assignments and remove uses of crypto.Sha3 
go get github.com/gordonklaus/ineffassign
ineffassign .
 2017-01-09 16:24:42 +01:00
Péter Szilágyi 18c77744ff
all: fix spelling errors 2017-01-06 19:44:35 +02:00
Felix Lange 13e3b2f433 logger, pow/dagger, pow/ezp: delete dead code 2017-01-06 18:18:07 +01:00
Felix Lange f2da6581ba all: fix issues reported by honnef.co/go/simple/cmd/gosimple 2017-01-06 18:18:07 +01:00
Felix Lange 35a7dcb162 all: gofmt -w -s 2017-01-06 15:52:03 +01:00
Péter Szilágyi 21fd9f037e
p2p/nat: fix a bytes based net.IP comparison 2016-12-15 16:28:31 +02:00
Péter Szilágyi 2573094df2
p2p/discover, p2p/discv5: use flexible comparison for IPs 2016-12-14 18:40:49 +02:00
Zsolt Felfoldi a6d3bf6fc3 p2p/discv5: search and lookup improvement 2016-12-08 13:38:15 +01:00
Felix Lange a47341cf96 p2p, p2p/discover, p2p/discv5: add IP network restriction feature 
The p2p packages can now be configured to restrict all communication to
a certain subset of IP networks. This feature is meant to be used for
private networks.
 2016-11-22 22:21:18 +01:00
Felix Lange a98d1d67d6 p2p/discover, p2p/discv5: prevent relay of invalid IPs and low ports 
The discovery DHT contains a number of hosts with LAN and loopback IPs.
These get relayed because some implementations do not perform any checks
on the IP.

go-ethereum already prevented relay in most cases because it verifies
that the host actually exists before adding it to the local table. But
this verification causes other issues. We have received several reports
where people's VPSs got shut down by hosting providers because sending
packets to random LAN hosts is indistinguishable from a slow port scan.

The new check prevents sending random packets to LAN by discarding LAN
IPs sent by Internet hosts (and loopback IPs from LAN and Internet
hosts). The new check also blacklists almost all currently registered
special-purpose networks assigned by IANA to avoid inciting random
responses from services in the LAN.

As another precaution against abuse of the DHT, ports below 1024 are now
considered invalid.
 2016-11-22 22:21:18 +01:00
Felix Lange ba2884f343 p2p/discover, p2p/discv5: use netutil.IsTemporaryError 2016-11-22 22:21:15 +01:00
Felix Lange 1d80155d5e p2p/netutil: new package for network utilities 
The new package contains three things for now:

- IP network list parsing and matching
- The WSAEMSGSIZE workaround, which is duplicated in p2p/discover and
  p2p/discv5.
 2016-11-22 22:20:38 +01:00
Péter Szilágyi b61f48e5aa
cmd, mobile, node, p2p: surface the discovery V5 bootnodes 2016-11-14 18:00:14 +02:00
Péter Szilágyi 178da7c6a9
mobile: initial wrappers for mobile support 2016-11-14 17:56:58 +02:00
Zsolt Felfoldi 1f70b279ba p2p/discv5: added new bootnodes 2016-11-14 13:22:19 +01:00
Zsolt Felfoldi e33e57684f p2p/discv5: fixed bootnode connect issues 2016-11-14 13:22:19 +01:00
Zsolt Felfoldi 09baeec0da discv5: fixed state machine lockup bug 2016-11-11 03:10:46 +01:00
Felix Lange b8bd9a71c8 all: update license information 2016-11-09 02:51:34 +01:00
Felix Lange 0f19cbc6e5 p2p/discv5: fix build with Go 1.5, delete package testimg 2016-11-09 02:18:48 +01:00
Zsolt Felfoldi 49da42983a p2p/discv5: added new topic discovery package 2016-11-09 02:12:53 +01:00
Felix Lange 44bc2e80dd Merge pull request #2914 from fjl/node-coinhabit 
cmd/utils, node: make datadir reusable for bzzd
 2016-09-29 14:24:37 +02:00
ken10100147 afecb93e2e p2p/nat: fix parameter order for AddMapping 2016-09-28 12:11:58 +02:00
Felix Lange f5c432bcab p2p/nat: delay auto discovery until first use 
Port mapper auto discovery used to run immediately after parsing the
--nat flag, giving it a slight performance boost. But this is becoming
inconvenient because we create node.Node for all geth operations
including account management and bare chain interaction. Delay
autodiscovery until the first use instead, which avoids any network
interaction until the node is actually started.
 2016-09-16 11:06:52 +02:00
Felix Lange b8ba80bff7 Merge pull request #2740 from Firescar96/removepeer 
node, p2p, internal: Add ability to remove peers via admin interface
 2016-07-29 12:34:28 +02:00
Firescar96 4c3da0f2e1 node, p2p, internal: Add ability to remove peers via admin interface 2016-07-14 18:51:41 -04:00
villesundell c7442ef0d2 ethdb, p2p/discover: replace "alloted" with "allotted" (#2785) 2016-07-12 11:42:47 +02:00
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 8110671960 p2p/discover: prevent bonding self 2016-05-02 18:50:16 +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 659c0cb9e8 p2p: enable EIP-8 handshake sending 
With the Ethereum Homestead fork is now behind us, we can
assume that everyone runs an EIP-8 capable client.
 2016-04-03 23:10:11 +02:00
Péter Szilágyi 64c8e2f2ca p2p/nat: fix #2291, NAT discovery did't abort on failure 2016-03-14 17:08:15 +02:00
Jeffrey Wilcke 483feb0d3f Merge pull request #2242 from jimenezrick/upstream-crypto 
Closes #2241: Use Keccak-256 from golang.org/x/crypto/sha3 and mention explicitly
 2016-02-24 12:57:57 +01:00
Péter Szilágyi ac954f48bd p2p/discover: emphasize warning, add 10 min cooldown 2016-02-24 12:16:28 +02:00
Péter Szilágyi b1908f6a16 psp/discovery: NTP sanity check clock drift in case of expirations 2016-02-24 12:14:15 +02:00
Ricardo Catalinas Jiménez 436fc8d76a all: Rename crypto.Sha3{,Hash}() to crypto.Keccak256{,Hash}() 
As we aren't really using the standarized SHA-3
 2016-02-21 22:34:34 +00:00
Felix Lange 7d8155714b p2p: EIP-8 changes 2016-02-19 11:14:48 +01:00
Felix Lange ee1debda53 p2p/discover: EIP-8 changes 2016-02-19 11:14:42 +01:00
Felix Lange 2871781f64 p2p/discover: fix Windows-specific issue for larger-than-buffer packets 
On Windows, UDPConn.ReadFrom returns an error for packets larger
than the receive buffer. The error is not marked temporary, causing
our loop to exit when the first oversized packet arrived. The fix
is to treat this particular error as temporary.

Fixes: #1579, #2087
Updates: #2082
 2016-01-22 23:44:25 +01:00
Felix Lange b3f1f4c673 p2p/discover: attempt to deflake TestUDP_responseTimeouts 
The test expected the timeout to fire after a matcher for the response
was added, but the timeout is random and fired sooner sometimes.
 2015-12-17 23:44:56 +01:00
Felix Lange 6c41e675ec p2p: resolve incomplete dial targets 
This change makes it possible to add peers without providing their IP
address. The endpoint of the target node is resolved using the discovery
protocol.
 2015-12-17 23:39:49 +01:00
Felix Lange 04c6369a09 p2p, p2p/discover: track bootstrap state in p2p/discover 
This change simplifies the dial scheduling logic because it
no longer needs to track whether the discovery table has been
bootstrapped.
 2015-12-17 23:38:54 +01:00
Felix Lange d1f507b7f1 p2p/discover: support incomplete node URLs, add Resolve 2015-12-17 23:38:54 +01:00
Péter Szilágyi abb53644c6 p2p: always allow dynamic dials if network not disabled 2015-12-03 11:45:35 +02:00