Commit graph

359 commits

Author SHA1 Message Date
Roman Khimov
eb4ec61b8b network: register connected addr in handleVersionCmd()
Prevent useless attempts to connect to this peer if the peer has already made
a connection to us.
2020-01-30 14:03:52 +03:00
Roman Khimov
9eafec0d1d network: introduce peer-to-peer message queue
This one is designed to give more priority to direct nodes communication, that
is that their messaging would have more priority than generic broadcasts. It
should improve consensus process under TX pressure and allow to handle
pings in time (preventing disconnects).
2020-01-30 14:03:52 +03:00
Roman Khimov
72e4eb7172 network: fix wrong NewPing() parameters
They have the opposite order, height first and nonce second. It was done wrong
in 4e6ed902 and never fixed since. Fixes sending wrong peer state leading to
useless getheaders messages (and disconnects when the other side is lagging
behind).
2020-01-30 14:03:52 +03:00
Roman Khimov
da09fda575 network: add debug on message receival 2020-01-30 14:03:52 +03:00
Roman Khimov
1c28dd2567 network: add message type to disconnect error message
If it was caused by message processing, but only after the handshake to
preserve errIdenticalID and other handshaking errors.
2020-01-30 14:03:52 +03:00
Roman Khimov
b79abd1e27 network: detect duplicate connections before handshake completes
We can have more than one connection attempt in progress and not yet completed
the handshake, so if there is a Version already received we should look it.
2020-01-30 14:03:52 +03:00
Roman Khimov
06c3fbe455 network: rework ping sends, fix overpinging
Our node was too pingy because of wrong timer setups (that divided timeout
Duration by time.Second), it also was wrong in its time calculations (using
UTC time to calculate intervals). At the same time missing block is a
server-wide problem, so it's better solved with server-wide protocol loop.
2020-01-28 17:39:52 +03:00
Roman Khimov
39800aecb3 network: fix getdata handling
It was broken by 0ba6b2a7, the peer only responded with one message instead of
full requested set.
2020-01-28 17:39:52 +03:00
Roman Khimov
9aa5d0cf1e
Merge pull request #615 from nspcc-dev/network-peer-updates
Network peer updates
2020-01-23 13:15:43 +03:00
Roman Khimov
99dfdc19e7 network: drop now useless addrReq queue from the server
Just broadcast a high-priority message to everyone.
2020-01-22 11:28:59 +03:00
Roman Khimov
ea3b76ded1 network: make NewServer return an error, fix #612
It can return nil in two cases, so we're better return an error and handle
it.
2020-01-22 11:17:51 +03:00
Roman Khimov
f2ffffddb7 network: rework broadcasting functions, tune priorities
This gives more priority to anything related to consensus.
2020-01-22 11:01:13 +03:00
Roman Khimov
34b863d645 network: introduce Server's MkMsg()
That wraps NewMessage() for a configured network.
2020-01-21 17:31:51 +03:00
Roman Khimov
1f672e0da7 network: move SendVersion() to the Peer
Only leave server-specific `getVersionMsg()` in the Server, all the other
logic is peer-related.
2020-01-21 17:26:08 +03:00
Roman Khimov
f56383e9c8 network: use p.LastBlockIndex() in requestBlocks()
Always compare to the best known block index, comparing to the StartHeight is
just plain wrong now.
2020-01-20 19:37:17 +03:00
Roman Khimov
2c4ace022e network/config: redesign ping timeout handling a bit
1) Make timeout a timeout, don't do magic ping counts.
2) Drop additional timer from the main peer's protocol loop, create it
   dynamically and make it disconnect the peer.
3) Don't expose the ping counter to the outside, handle more logic inside the
   Peer.

Relates to #430.
2020-01-20 19:37:17 +03:00
Roman Khimov
62092c703d network: use local timestamp to decide when to ping
We don't and we won't have synchronized clocks in the network so the only
timestamp that we can compare our local time with is the one made
ourselves. What this ping mechanism is used for is to recover from missing the
block broadcast, thus it's appropriate for it to trigger after X seconds of
the local time since the last block received.

Relates to #430.
2020-01-20 19:37:17 +03:00
Roman Khimov
a8252ecc05 network: remove wrong ping condition
In reality it will never be true exactly in the case where we want this ping
mechanism to work --- when the node failed to get a block from the net. It
won't get the header either and thus its block height will be equal to header
height. The only moment when this condition is met is when the node does
initial synchronization and this synchronization works just fine without any
pings.

Relates to #430.
2020-01-20 19:37:17 +03:00
Roman Khimov
247cfa4165 network: either request blocks or ping a peer, but not both
It makes to sense to do both actions, pings are made for a different purpose.

Relates to #430.
2020-01-20 19:37:17 +03:00
Roman Khimov
0ba6b2a754 network: introduce peer sending queues
Two queues for high-priority and ordinary messages. Fixes #590. These queues
are deliberately made small to avoid buffer bloat problem, there is gonna be
another queueing layer above them to compensate for that. The queues are
designed to be synchronous in enqueueing, async capabilities are to be added
layer above later.
2020-01-20 17:23:26 +03:00
Roman Khimov
7f0882767c network: remove useless Done() method from the peer
It's internal state of the peer that no one should care about.
2020-01-20 17:23:26 +03:00
Roman Khimov
f39d5d5a10 network: fix unregistration on peer Disconnect
It should always signal to the server, not duplicating this send and not
missing it like it happened in the Server.run().
2020-01-20 17:23:26 +03:00
Roman Khimov
907a236285 network: move per-peer goroutines into the TCPPeer
As they're directly tied to it.
2020-01-20 17:23:26 +03:00
Roman Khimov
32213b1454
Merge pull request #601 from nspcc-dev/refactoring/core
core: refactor out Block, BlockBase and Header, closes #597.
2020-01-20 16:19:20 +03:00
Roman Khimov
bb80ba9b9e
Merge pull request #456 from nspcc-dev/pingpong_430
add ping pong processing
2020-01-20 16:10:29 +03:00
Vsevolod Brekelov
4e6ed9021c network: add ping pong processing
add pingInterval same as used in ref C# implementation with the same logic
add pingTimeout which is used to check whether pong received. If not -- drop the peer.
add pingLimit which is hardcoded to 4 in TCPPeer. It's limit for unsuccessful ping/pong calls (where pong wasn't received in pingTimeout interval)
2020-01-17 13:24:14 +03:00
Evgenii Stratonikov
28183b81d6 mempool: simplify names of exported types
With the move to a separate package, naming can be simplified:
MemPool -> Pool, PoolItem -> Item, PoolItems -> Items.
2020-01-16 10:16:24 +03:00
Evgenii Stratonikov
fed6fba9b6 core: refactor out MemPool 2020-01-16 10:16:24 +03:00
Evgenii Stratonikov
489b88afbb block: rename BlockBase to Base 2020-01-16 10:16:24 +03:00
Evgenii Stratonikov
63c56cca5c core: refactor out Block, BlockBase and Header structs
See #597.
2020-01-16 10:16:24 +03:00
Roman Khimov
7d4d57351e network: fix requestTx() behaviour for consensus service
It wasn't actually requesting transactions but rather sending an inventory
message telling everyone that we have them which is completely wrong and
easily leads to ChangeView that could be avoided.
2020-01-15 14:31:56 +03:00
Roman Khimov
0420d48e56 network: micro-optimize relayInventory
Do less allocations, we're sending the same message with the same payload.
2020-01-15 13:16:09 +03:00
Roman Khimov
7ba5267494
Merge pull request #596 from nspcc-dev/feature/single_node
network: allow single-node privnet setup. Closes #595.
2020-01-14 13:17:04 +03:00
Evgenii Stratonikov
70b23076f8 network: allow single-node privnet setup 2020-01-13 18:01:20 +03:00
Evgenii Stratonikov
5f5d0097e2 network: use TimePerBlock from config 2020-01-13 17:58:12 +03:00
Roman Khimov
2192b6602a network: fix logic and logging for sendVersion() errors
It doesn't make sense trying to read from a broken connection and the
disconnect is to be logger from the server on unregistration.
2020-01-13 17:33:29 +03:00
Evgenii Stratonikov
f3921ea3bd network: fix NPE in logging 2020-01-13 15:06:57 +03:00
Evgenii Stratonikov
9b8b77c9ea network: return error if header message is too big
Big messages can still be processed but only first
2000 headers will be used.
2020-01-10 11:14:29 +03:00
Evgenii Stratonikov
aecdf470e7 cli,pkg: use zap.Logger 2020-01-10 11:14:27 +03:00
Roman Khimov
234d94d27e network: implement getblocks command
Fixes #577, tested with C# nodes connecting to neo-go privnet.
2019-12-25 19:46:57 +03:00
Evgenii Stratonikov
884779e501 *: goimports 2019-12-17 14:51:28 +03:00
Evgenii Stratonikov
014be31a0a network: fix link in pprof 2019-12-17 14:49:28 +03:00
Vsevolod Brekelov
0085831ec5 network: add Pprof metrics
Since we have some perf issues from time to time it is good to have pprof debugger. Disabled by default.
2019-12-17 14:13:07 +03:00
Roman Khimov
8b3080b972 io: rename Read/WriteBytes to Read/WriteB
go vet is not happy about them:
  pkg/io/binaryReader.go:92:21: method ReadByte() byte should have signature ReadByte() (byte, error)
  pkg/io/binaryWriter.go:75:21: method WriteByte(u8 byte) should have signature WriteByte(byte) error
2019-12-12 20:19:50 +03:00
Roman Khimov
54d888ba70 io: add type-specific read/write methods
This seriously improves the serialization/deserialization performance for
several reasons:
 * no time spent in `binary` reflection
 * no memory allocations being made on every read/write
 * uses fast ReadBytes everywhere it's appropriate

It also makes Fixed8 Serializable just for convenience.
2019-12-12 20:19:50 +03:00
Vsevolod Brekelov
2d42b14a1d core: renames entities-> state and removed State prefix 2019-12-11 13:14:18 +03:00
Vsevolod Brekelov
ec17654986 core: refactoring blockchain state and storage
add dao which takes care about all CRUD operations on storage
remove blockchain state since everything is stored on change
remove storage operations from structs(entities)
move structs to entities package
2019-12-11 13:05:31 +03:00
Roman Khimov
7e371588a7 core/tx: remove one layer of indirection for scripts and inouts
It reduces heap pressure a little for these elements as we don't have to
allocate/free them individually. And they're directly tied to transactions or
block, not being shared or anything like that, so it makes little sense for
them to be pointer-based. It only makes building transactions a little easier,
but that's obviously a minor usecase.
2019-12-09 17:14:10 +03:00
Evgenii Stratonikov
fccb008594 io: implement ReadBytes() 2019-12-09 15:00:15 +03:00
Evgenii Stratonikov
838050f8b5 io: rename ReadBytes() to ReadVarBytes() 2019-12-09 15:00:15 +03:00
Roman Khimov
e4d821f32d
Merge pull request #546 from nspcc-dev/write-optimizations
Write optimizations
2019-12-06 19:40:38 +03:00
Roman Khimov
844491d365 *: use more efficient WriteBytes where appropriate
Before this patch on block import we could easily be spending more than 6
seconds out of 30 in Uint256 encoding for UnspentBalance, now it's completely
off the radar.
2019-12-06 18:22:21 +03:00
Evgenii Stratonikov
7179e4ba9f util: add LE suffix to Uint256 methods 2019-12-06 12:16:55 +03:00
Roman Khimov
f48228ef7d
Merge pull request #467 from nspcc-dev/errcheck_297
This patchset closes #297 and #457.
2019-12-03 15:06:11 +03:00
Vsevolod Brekelov
03ff2976ed io: refactoring for using WriteVarBytes instead of WriteLE
goal is to be consistent with C# implementation.
For writing []byte WriteBytes used and for byte - WriteVarByte.
2019-12-03 13:49:33 +03:00
Roman Khimov
abc0ec33bd
Merge pull request #532 from nspcc-dev/fix/peer_count
Consensus fixes.
2019-12-02 18:08:36 +03:00
Evgenii Stratonikov
7c900edd2d network: count only handshaked peers as connected 2019-12-02 15:09:09 +03:00
Roman Khimov
1da76a8eb4 network: rework inventory handling, check for item presence
Don't ask peers about the items we already have.
2019-12-02 11:02:52 +03:00
Roman Khimov
b4d9935bda network: deduplicate a part of RelayTxn()
We already have relayInventory() for this.
2019-11-29 16:26:44 +03:00
Roman Khimov
293615ea5f network/consensus: add new block relaying
Tell everyone about our new shiny blocks.
2019-11-29 12:27:15 +03:00
Roman Khimov
4d286dcfeb network: check height before requesting headers
Only request headers from the other peer if his height is bigger than
ours. Otherwise we routinely ask 0-height newcomers for some random headers
that they know nothing about.
2019-11-29 11:48:17 +03:00
Roman Khimov
a730529b0c network: process incoming p2p transactions
It's the same relaying as for RPC, but we don't need to return any result for
it.
2019-11-29 11:09:54 +03:00
Roman Khimov
9f9cf4ae3f network: add getheaders message processing
This one is essential for the consensus nodes as otherwise they won't give out
the blocks they generate making their generation almost useless. It also makes
our networking part more complete.
2019-11-29 11:08:22 +03:00
Roman Khimov
734338ad70 network: move Version sending to the tcp transport
We have a race between reader and writer goroutines for the same connection
that leads to handshake failures when reader is faster to read the incoming
version (and try to reply to it) than writer is to write our own Version:

WARN[0000] peer disconnected                             addr="172.200.0.4:20334" peerCount=5 reason="invalid handshake: tried to send VersionAck, but didn't send Version yet

Fix it by moving Version sending before the reader loop starts.
2019-11-29 11:05:42 +03:00
Evgenii Stratonikov
b5fb43bac9 network: don't reconnect to peers with identical ID 2019-11-27 11:58:17 +03:00
Evgenii Stratonikov
fdd5276d3e network: plug in dBFT library 2019-11-27 10:57:22 +03:00
Vsevolod Brekelov
c80ee952a1 core/crypto: add validators and interop for validators
add processing of validators while block persist;
add validator structure with decoding/encoding;
add validator get from store;
add EnrollmentTX and StateTX processing;
add pubkey decode bytes, unique and contains functions;
2019-11-21 15:23:35 +03:00
Roman Khimov
5076704019
Merge pull request #502 from nspcc-dev/docker-compose-environment-for-neo-go
Create docker-compose environment
2019-11-18 17:21:11 +03:00
Evgeniy Kulikov
2f8b11dabf
reformat code at pkg/network/metrics/metrics.go 2019-11-18 17:17:21 +03:00
Evgeniy Kulikov
0a56d3ddbc
network: generate randomized server id
math/rand might generate same id's on one environment, so.. use crypto/rand for generation id's
2019-11-18 17:17:21 +03:00
Evgenii Stratonikov
e3098ed0f8 network: write messages atomically
Right now message can be written in several Write's so
concurrent calls of writeMsg() can in theory interleave.
This commit fixes it.

Signed-off-by: Evgenii Stratonikov <evgeniy@nspcc.ru>
2019-11-18 09:31:00 +03:00
Evgenii Stratonikov
2be18f91df util: implement io.Serializable for Uint256 2019-11-14 14:20:38 +03:00
Evgenii Stratonikov
b16e56a47b io: refactor BinReader.ReadArray()
Make it accept arbitrary slice pointer.
2019-11-14 14:19:58 +03:00
Evgenii Stratonikov
085ca7b770 network: implement Consensus payloads 2019-11-13 17:27:25 +03:00
Evgenii Stratonikov
ad9091d13d io: implement generic array (de-)serialization
It is done through reflection and panics
in every unexpected situation.
2019-11-13 17:27:23 +03:00
Roman Khimov
b05754deac core: add Close() to blockchainer, implement it to properly close chain
Before it the deferred function in Run() was actually never able to properly
close the Store, so we weren't synching the latest state to the disk.
2019-11-08 12:19:54 +03:00
Vsevolod
11b372b45d
Merge pull request #480 from nspcc-dev/handshake-wait-for-version
network: wait for both Version messages before ACKing
2019-11-06 18:33:20 +03:00
Roman Khimov
d7f747fa9a network: wait for both Version messages before ACKing
Otherwise the node might crash in `startProtocol` because of missing Version
field in the peer. And it also keeps the sequence correct, Version MUST be
sent first and ACKs can only follow it.
2019-11-06 18:05:50 +03:00
Vsevolod Brekelov
11ce73af28 server: add log-path and address configuration
- LogPath can be configured through config
- node,rpc and monitoring address can be configured thought command line
or config
2019-11-06 15:58:54 +03:00
Roman Khimov
7cf9a40468 network: fix MaxPeers, introduce AttemptConnPeers
Our node didn't respect the MaxPeers setting, fix it with a drop of random
connection when this limit is reached (to give a chance for newcomers to
communicate), but also introduce AttemptConnPeers setting to tune the number
of attempted connections.

This also raises the default MaxPeers for testnet/mainnet to 100, because
neo-go nodes love making friends.
2019-11-06 15:29:58 +03:00
Roman Khimov
31954bb20c network: disallow double connections to the same peer
Makes no sense and C# node does it too.
2019-11-06 15:29:58 +03:00
Roman Khimov
d5a7ad2c47 network: fix data race in server peers map access 2019-11-06 15:29:58 +03:00
Roman Khimov
ec76ed23a5 network: rework peer handshaking, fix #458
This allows to start handshaking from both client and server (mainnet/testnet
nodes were seen to not care about string ordering for it), but still maintains
some sane checks in the process. It also makes functions thread-safe because
we have two goroutines servicing read and write side of the Peer connection,
so they can clash on access to the struct fields.

Add a test for it also.
2019-11-06 15:29:58 +03:00
Roman Khimov
e859e03240 network: split Peer's NetAddr into RemoteAddr and PeerAddr
As they are different things used for different purposes.
2019-11-06 15:26:24 +03:00
Roman Khimov
e9f8b25776 network: add default MinPeers
If there is nothing specified in the configuration, set it to some reasonable
value.
2019-11-01 13:39:47 +03:00
Roman Khimov
b12a68994d network: make minpeers configurable
Without it node in privnet tries to reconnect to four existing nodes
indefinitely for no good reason.
2019-10-31 15:10:00 +03:00
Roman Khimov
2f6e678a19
Merge pull request #463 from nspcc-dev/smartcontract-fixes
Smartcontract RPC fixes
2019-10-29 20:54:46 +03:00
Vsevolod Brekelov
d374175170 monitoring: add prometheus monitoring
add init metrics service which uses prometheus;
add configuration for metrics service;
add monitoring metrics for blockchain,rpc,server;
2019-10-29 20:51:17 +03:00
Roman Khimov
ebc1ba4f38 rpc/core: implement invokescript method, fix #348
Extend Blockchainer with one more method to spawn a VM for test runs and use
it to run scripts. Gas consumption is not counted or limited in any way at the
moment (see #424).
2019-10-29 18:31:39 +03:00
Roman Khimov
006337b1f8 network: rework discovery with rwmutex, add test
Keeping run() as the owner of all maps would mean adding at least three more
channels to keep address getters with thread-safety. But then there also is a
race between requestToWork() and run() which is way harder to solve with
channels because there are lots of possibilities for deadlocks. So rework all
of this with good old mutexes.

While at it, fix `requestCh` handling in the inner select of run, it will waste
one loop to handle it, so we should add one to the `requested`.

Fixes #445.
2019-10-28 13:37:27 +03:00
Roman Khimov
77a50d6dc6 network: remove useless checks in discovery
These are useless.
2019-10-27 16:11:32 +03:00
Roman Khimov
9ff55ac02c network: move inventory semantic check into common code
As per @volekerb suggestion.
2019-10-24 13:12:02 +03:00
Roman Khimov
257ba1c2ad network: implement getdata message handling in server
To properly implement relaying we need to answer these requests from other
nodes.
2019-10-24 13:12:01 +03:00
Vsevolod Brekelov
8ee421db14 fix spelling and godoc comments 2019-10-22 17:56:03 +03:00
Roman Khimov
3fc2bf5452 *: fix some misspellings
Goreport:
   neo-go/pkg/core/contract_state_test.go
        Line 21: warning: "Contracto" is a misspelling of "Contraction" (misspell)
        Line 64: warning: "Contracto" is a misspelling of "Contraction" (misspell)

   neo-go/pkg/core/interop_neo.go
        Line 420: warning: "succeedes" is a misspelling of "succeeds" (misspell)

   neo-go/pkg/network/discovery.go
        Line 118: warning: "succeded" is a misspelling of "succeeded" (misspell)
        Line 128: warning: "successfuly" is a misspelling of "successfully" (misspell)
2019-10-17 12:30:24 +03:00
Roman Khimov
6029d5a888 payload: drop useless type declaration
golint suggests:
    pkg/network/payload/address.go:48:12: should omit type net.IP from declaration of var netip; it will be inferred from the right-hand side
2019-10-17 12:19:41 +03:00
Roman Khimov
3f6104ef4d network: ignore consensus messages
It's a temporary stub until proper encoding/decoding is implemented. It's
useful for testnet/mainnet connections because without it consensus message
receival leads to peer disconnection.
2019-10-17 11:58:27 +03:00
Roman Khimov
56459c6c63 network: remove port check from handleVersionCmd()
It's bogus and no other node implementation has anything like that. It fires
up for no good reason in the case when some other node connects to us and it
obviously doesn't use its listening port for it.
2019-10-17 11:19:24 +03:00
Roman Khimov
74590551c4 core: add some interops
This also changes Verify to VerifyTx and VerifyWitnesses, because there is a
need to pass a block for some interop functions.
2019-10-15 12:56:25 +03:00
Roman Khimov
8266a5ce19 core: export GetContractState/GetScriptHashesForVerifying via Blockchainer
These are gonna be used by interops and are also useful in general.
2019-10-15 12:56:25 +03:00
Roman Khimov
19fd7f844e core: add GetUnspentCoinState() for future interops 2019-10-15 12:56:25 +03:00
Roman Khimov
bfddf9b3f6 core: implement StorageItem for future interops 2019-10-15 12:56:25 +03:00
Roman Khimov
b7c1efe7e3 core: fix References() result key type
If the block references two ouputs in some other transaction the code failed
to verify it because of key collision. C# code implements it properly by using
full CoinReference type as a key, so let's do it in a similar fashion.
2019-10-01 13:41:26 +03:00
Roman Khimov
9617a6f9e9 network: fix requestBlocks() for (headers == blocks + 1)
In the very specific case when the list of headers received is exactly one
block ahead of the chain of full blocks requestBlocks() failed to generate
request to get the next full block.
2019-09-27 15:42:35 +03:00
Roman Khimov
c531dc0bde network: add block queue
This one will replace blockCache in Blockchain itself as it can and should be
external from it. The idea is that we only feed successive blocks into the
Blockchain and it only stores valid proper Blockchain and nothing else.
2019-09-27 13:00:09 +03:00
Roman Khimov
5a0f08f2c0 network: fix SIGSEGV on unknown message acceptance
For example, at the moment our node can't handle `consensus` message, so when
it received it before the patch it just crashed because of uninitialized `p`.
2019-09-22 20:09:55 +03:00
Roman Khimov
96618015cd network: implement EncodeBinary() for MerkleBlock 2019-09-17 13:21:52 +03:00
Roman Khimov
d1a4e43c48 io: redo Serializable to return errors in BinReader/BinWriter
Further simplifies error handling.
2019-09-17 13:21:52 +03:00
Roman Khimov
0bb8950f89 make TXer and Payload implement Serializable
Both are duplicating Serializable at the moment, but let's keep them for the
future.
2019-09-17 13:21:52 +03:00
Roman Khimov
e299a44983 io: drop Size() method from Serializable and associated
It's no longer needed after the io.GetVarSize() improvement. It's duplicating
a lot of EncodeBinary() logic also.
2019-09-17 13:21:45 +03:00
Roman Khimov
0da9fe6946 io: move size calculator there
It's mostly used for Serializable and in other cases where one needs to
estimate binary-encoded size of the stucture. This also simplifies future
removal of the Size() from Serializable.
2019-09-16 23:39:54 +03:00
Roman Khimov
5bf00db2c9 io: move BinReader/BinWriter there, redo Serializable with it
The logic here is that we'll have all binary encoding/decoding done via our io
package, which simplifies error handling. This functionality doesn't belong to
util, so it's moved.

This also expands BufBinWriter with Reset() method to fit the needs of core
package.
2019-09-16 23:39:51 +03:00
Roman Khimov
aacf58c9ab util: add 'constructors' for BinReader/BinWriter
And an additional BufBinWriter to ease buffer management.
2019-09-16 23:38:48 +03:00
Roman Khimov
b9ff4d929c network: add getaddr message handling
Respond with known good addresses.
2019-09-16 16:32:04 +03:00
Roman Khimov
b2530a4c93 network: be more specific on port mismatch error 2019-09-16 16:32:04 +03:00
Roman Khimov
773ccc2b92 network: allow discoverer to reuse addresses
...and don't try to connect to the nodes we're already connected to.

Before this change we had a problem of discoverer throwing away good valid
addresses just because they are already known which lead to pool draining over
time (as address reuse was basically forbidden and getaddr may not get enough
new nodes).
2019-09-16 16:32:04 +03:00
Roman Khimov
46dc141c6c network: enlarge address request queue
Queuing one message is not reliable enough, the peer that gets it can fail to
actually make a request, so make this queue a bit deeper to have a higher
chance of success.
2019-09-16 16:32:04 +03:00
Roman Khimov
d3bb8ddf8f network: handle errors and connection close more correctly
This makes writer side handle errors properly and fixes communication between
reader and writer goroutine to always correctly unregister the peer. This is
especially important for the case where error occurs before handshake
completes as in this case we don't even have goroutine in startProtocol()
running.
2019-09-16 16:32:04 +03:00
Roman Khimov
76c7cff67f network: make node strictly follow handshake procedure
Don't accept other messages before handshake is completed, check handshake
message sequence.
2019-09-16 16:32:04 +03:00
Roman Khimov
c6487423ae network: close connection on disconnect
If it's already closed, this won't hurt, but in the case of logical error it
saves us from leaking this connection (and potentially, peer).
2019-09-16 16:26:30 +03:00
Roman Khimov
90e13debe4 network: implement getaddr sends and addr receival
Request new addresses if we're short on known addresses pool size.
2019-09-16 16:26:30 +03:00
Roman Khimov
2a49e68d77 network: start worker goroutine for every connection attempts
Prevents blocking on write to workCh which can be dangerous for the server.
2019-09-16 16:26:30 +03:00
Roman Khimov
b4e284f301 discovery: make pool management more reliable
Just drop excessive addresses, otherwise we can block for no good reason.
2019-09-16 16:26:30 +03:00
Roman Khimov
85f19936dd network: implement connection retries
It's worth to try a bit more than once.
2019-09-16 16:26:30 +03:00
Roman Khimov
be6c905e5d network: use and improve discovery mechanism for reconnections
This makes our node reconnect to other nodes if connection drops for some
reason. Fixes #390.
2019-09-16 16:26:30 +03:00
Roman Khimov
8d9bc83214 util: drop Endpoint structure, fix #321
I think it's useless, buggy and hides parsing errors for no good reason.
2019-09-09 17:54:38 +03:00
Roman Khimov
fabd11699a *: gofmt -s
Appy gofmt for all the source tree.
2019-09-09 12:02:24 +03:00
Roman Khimov
db9e37b3bb *: fix golint's omit type suggestions
pkg/core/transaction/attribute.go:67:14: should omit type uint8 from declaration of var urllen; it will be inferred from the right-hand side
pkg/crypto/keys/publickey.go:184:8: should omit type []byte from declaration of var b; it will be inferred from the right-hand side
pkg/network/payload/version_test.go:15:12: should omit type bool from declaration of var relay; it will be inferred from the right-hand side

Refs. #213.
2019-09-03 18:16:48 +03:00
Roman Khimov
a9b9c9226d *: add/fix godoc comments to satisfy golint
Fixes things like:
 * exported type/method/function X should have comment or be unexported
 * comment on exported type/method/function X should be of the form "X ..."
   (with optional leading article)

Refs. #213.
2019-09-03 17:57:51 +03:00
Roman Khimov
e72a8bbecd network: decode CMDGetData the same way as CMDInv
As they're the same wrt the payload.
2019-08-30 13:14:12 +03:00
Roman Khimov
e03eac9dcc payload: move one test from dev for inventory
And drop it from the _pkg.dev.
2019-08-30 11:41:10 +03:00
Roman Khimov
6cf74e2d83 payload: fix wrong stringer impl for InventoryType 2019-08-30 11:41:10 +03:00
Roman Khimov
f636bb9b6e payload: extend headers test, add limit
... from _pkg.dev and drop headers parsing there.
2019-08-30 11:41:10 +03:00
Roman Khimov
2d94a1e337 network: add getblocks message parsing
It has identical structure to the `getheaders`.
2019-08-29 21:23:57 +03:00
Roman Khimov
01c96fbc50 payload: improve address test
Check that the structure has proper values stored.
2019-08-29 21:23:57 +03:00
Roman Khimov
650a1d4bcc payload: expand version test with explicit data checks 2019-08-29 21:23:57 +03:00
Roman Khimov
2e3172f8a5 payload: fix tests to use asserts
Like in 483b875f4a.
2019-08-29 21:23:57 +03:00
Roman Khimov
c949d2ec53 payload: fix Size() calculation for version
UserAgent is variable-length-encoded. Fix associated test.
2019-08-29 21:23:57 +03:00
Roman Khimov
4f23117d32 payload: fix wrong useragent parsing in version
C# code reads is as a proper variable-length string, so it's not limited to
252 bytes.
2019-08-29 13:42:16 +03:00
Roman Khimov
459542a978 pkg/network: convert to using binaryReader/Writer 2019-08-28 19:45:17 +03:00
Roman Khimov
a436e22ec1 pkg/network: sort messages
Just for convenience.
2019-08-27 20:12:01 +03:00
Roman Khimov
0f265a6a04 _pkg.dev: drop wire/command
Transferring some missing commands to pkg/network.
2019-08-27 20:08:48 +03:00
Roman Khimov
e89e78159b _pkg.dev: drop wire/protocol package
Move service definitions from it into version (just to save them), but other
than that it's useless for master that has configs ruling the networks.
2019-08-27 19:56:12 +03:00
Roman Khimov
ec7e17ffa6 pkg: make use of the new crypto/hash package
Simplifies a lot of code and removes some duplication. Unfortunately I had to
move test_util random functions in same commit to avoid cycle
dependencies. One of these random functions was also used in core/transaction
testing, to simplify things I've just dropped it there and used a static
string (which is nice to have for a test anyway).

There is still sha256 left in wallet (but it needs to pass Hash structure into
the signing function).
2019-08-26 13:32:19 +03:00
Roman Khimov
2fd782eee8 util: drop RandUint32()
I don't see anything useful in it, all the current users of it should just use
plain rand.Uint32() not limiting its output in any way.
2019-08-26 13:32:19 +03:00
dauTT
095653af23 Implement rpc server method: sendrawtransaction (#174)
* Added new config attributes: 'SecondsPerBlock','LowPriorityThreshold'

* Added new files:

* Added new method: CompareTo

* Fixed empty Slice case

* Added new methods: LessThan, GreaterThan, Equal, CompareTo

* Added new method: InputIntersection

* Added MaxTransactionSize, GroupOutputByAssetID

* Added ned method: ScriptHash

* Added new method: IsDoubleSpend

* Refactor blockchainer, Added Feer interface, Verify and GetMemPool method

* 1) Added MemPool
2) Added new methods to satisfy the blockchainer interface: IsLowPriority, Verify, GetMemPool

* Added new methods: RelayTxn, RelayDirectly

* Fixed tests

* Implemented RPC server method sendrawtransaction

* Refactor getrawtransaction, sendrawtransaction in separate methods

* Moved 'secondsPerBlock' to config file

* Implemented Kim suggestions:
1) Fixed data race issues
2) refactor Verify method
3) Get rid of unused InputIntersection  method due to refactoring Verify method
4) Fixed bug in https://github.com/CityOfZion/neo-go/pull/174#discussion_r264108135
5) minor simplications of the code

* Fixed minor issues related to

1) space
2) getter methods do not need pointer on the receiver
3) error message
4) refactoring  CompareTo method in uint256.go

* Fixed small issues

* Use sync.RWMutex instead of sync.Mutex

* Refined (R)Lock/(R)Unlock

* return error instead of bool in Verify methods
2019-03-20 12:30:05 +00:00
dauTT
19201dcf52 Implemented rpc server method GetRawTransaction (#135)
* Added utility function GetVarSize

* 1) Added Size method: this implied that Fixed8 implements now the serializable interface. 2) Added few arithmetic operation (Add, Sub, div): this will be used to calculated networkfeeand feePerByte. Changed return value of the Value() method to int instead of int64. Modified fixed8_test accordingly.

* Implemented Size or MarshalJSON method.
- Structs accepting the Size method implement the serializable interface.
- Structs accepting the MarshalJSON method implements the customized json marshaller interface.

* Added fee calculation

* Implemented rcp server method GetRawTransaction

* Updated Tests

* Fixed:
1) NewFixed8 will accept as input int64
2) race condition affecting configDeafault, blockchainDefault

* Simplified Size calculation

* 1) Removed global variable blockchainDefault, configDefault
2) Extended Blockchainer interface to include the methods: References, FeePerByte, SystemFee, NetworkFee
3) Deleted fee_test.go, fee.go. Moved corresponding methods to blockchain_test.go and blockchain.go respectively
4) Amended tx_raw_output.go

* Simplified GetVarSize Method

* Replaced ValueAtAndType with ValueWithType

* Cosmetic changes + Added test case getrawtransaction_7

* Clean up Print statement

* Filled up keys

* Aligned verbose logic with the C#-neo implementation

* Implemented @Kim requests
Refactor server_test.go

* Small fixes

* Fixed verbose logic
Added more tests
Cosmetic changes

* Replaced assert.NoError with require.NoError

* Fixed tests by adding context.Background() as argument

* Fixed tests
2019-02-20 18:39:32 +01:00
Evgeniy Kulikov
cdba88b9f2 Code refactoring (#143)
- simplify code
- prealoc slices
- check errors in tests
- regexp Compile replaced with MustCompile
- uint* cannot be negative
2019-02-19 14:22:33 +01:00
Evgeniy Kulikov
67cbcac643 Fix typos (#133)
* Fix typos

* revert chains/unit_testnet

* revert chains

* fix review comments (thx @AlexVanin)
2019-02-13 18:01:10 +00:00
Evgeniy Kulikov
630919bf7d Fix typos and warnings for GoReport / GolangCiLinter (#132)
- typos
- gofmt -s
- govet warnings
- golangci-lint run
2019-02-09 16:53:58 +01:00
dauTT
7e43717657 Implemented rcp method GetAccountState (#124)
* Implemented rcp method GetAccountState

* code clean up

* Removed empty line

* Used consistently github.com/pkg/errors package. Amended error message

* Get rid of fmt.Sprintf and use either errors.Errorf or errors.Wrapf

* cosmetic changes
2019-02-08 09:04:38 +01:00
Evgeniy Kulikov
f000b76879 [FIX] Formatting and code-style (#118)
* [FIX] Formatting and code-style

- gofmt
- import resort
- prealloc slices
- simplify code

* fix vet
2019-01-25 12:20:35 +01:00
dauTT
e2f42e92a0 Implemented rcp method GetAssetState (#103)
* Fix missing dot in configPath

* Add rpc GetAssetState method

* Update rpc README.md

* Update version to 0.45.10
2018-11-26 22:12:33 +01:00
Anthony De Meulemeester
34a37ff51d
added filter payloads for spv client compliance (#90)
* added filter payloads for spv client compliance

* bumped version
2018-08-10 16:32:49 +02:00
Anthony De Meulemeester
ab2568cc51
Fixed some networking issues (#68)
* Faster persist timer

* fixed networking issues.
2018-04-13 12:14:08 +02:00
Anthony De Meulemeester
b2021c126e
Tweaks for network and storage (#66)
* Made Encode/Decode message public.

* Added Redis storage driver and made some optimizations for the initialising the blockchain

* removed log lines in tcp_peer

* Added missing comments on exported methods.

* bumped version
2018-04-09 18:58:09 +02:00
Anthony De Meulemeester
94672cb9cc
Persistance (#53)
* added publish TX for backwards compat.

* lowered the prototick for faster block syncing

* print useragent on startup

* added createMultiRedeemScript for genesis block generation.

* building genesis block from scratch.

* implemented merkle tree.

* starting blockhain with generated genesis hash

* Fixed bug in unspent coin state.

* fixed broken tests after genesis block.

* removed log line.

* bumped version -> 0.34.0
2018-03-25 12:45:54 +02:00
Steven Jack
19a430b262 RCP server (#50)
* Adds basic RPC supporting files

* Adds interrupt handling and error chan

* Add getblock RPC method

* Update request structure

* Update names of nodes

* Allow bad addresses to be registered in discovery externally

* Small tidy up

* Few tweaks

* Check if error is close error in tcp transport

* Fix tests

* Fix priv port

* Small tweak to param name

* Comment fix

* Remove version from server

* Moves submitblock to TODO block

* Remove old field

* Bumps version and fix hex issues
2018-03-23 21:36:59 +01:00
Anthony De Meulemeester
a67728628e
Persist blockchain with leveldb on disk (#48)
* Created test_data folder with block json files for testing + create separate file for block base.

* Fixed bug in WriteVarUint + Trim logic + unit tests

* Refactored store and add more tests for it.

* restore headerList from chain file

* Fix tx decode bug + lots of housekeeping.

* Implemented Node restore state from chain file.

* Created standalone package for storage. Added couple more methods to Batch and Store interfaces.

* Block persisting + tests

* bumped version -> 0.31.0
2018-03-17 12:53:21 +01:00
Steven Jack
b41e14e0f0 Server configuration (#43)
* Adds struct for config settings

* Bumps version

* Move settings around

* Only push version tag up not whole branch as well

* Move config into own path and add test and main nets

* Update config for timeouts

* Convert to yaml
2018-03-15 21:45:37 +01:00
Anthony De Meulemeester
aa4bc1b6e8
Node improvements (#47)
* block partial persist

* replaced refactored files with old one.

* removed gokit/log from deps

* Tweaks to not overburden remote nodes with getheaders/getblocks

* Changed Transporter interface to not take the server as argument due to a cause of race warning from the compiler

* started server test suite

* more test + return errors from message handlers

* removed --race from build

* Little improvements.
2018-03-14 10:36:59 +01:00
Anthony De Meulemeester
aa4bd34b6b
Node network improvements (#45)
* small improvements.

* Fixed datarace + cleanup node and peer

* bumped version.

* removed race flag to pass build
2018-03-10 13:04:06 +01:00
Anthony De Meulemeester
4023661cf1
Refactor of the Go node (#44)
* added headersOp for safely processing headers

* Better handling of protocol messages.

* housekeeping + cleanup tests

* Added more blockchain logic + unit tests

* fixed unreachable error.

* added structured logging for all (node) components.

* added relay flag + bumped version
2018-03-09 16:55:25 +01:00
Anthony De Meulemeester
1a1a19da7d
Smartcontract (#39)
* deleted transfer_output added asset type and transaction result to core

* removed writing 0x00 when buffer length is 0

* Refactored emit into VM package + moved tx to own package.

* implemented transaction along with claimTransaction.

* refactored naming of transaction + added decode address for uint160 types

* removed unnecessary folder and files.

* transaction/smartcontract logic

* bumped version 0.24.0
2018-03-04 14:56:49 +01:00
Steven Jack
42195b1af4 Refactor peer message sending into single interface method .Send() (#40)
* Adds Send method to Peer interface and removes redundant methods

* Fix imports

* Bumps version
2018-03-04 14:47:56 +01:00
Steven Jack
e09c870f7f Fix bug where channel for peers events is called after it's closed (#34)
* Disconnect once go routines signal so

* Send msg if cmd is other than cmdUnknown

* Remove typo

* Fix lock file

* Updates README

* Comment typo

* Fix issue

* Revert old changes

* Handle error
2018-03-03 08:16:05 +01:00
Anthony De Meulemeester
f3f6662fc9
Base wallet implementation (#35)
* Initial draft of the neo-go wallet

* Cleanup + more test for util package

* integrated wallet into neo-cli partially

* base wallet implementation + smartcontract code.
2018-03-02 16:24:09 +01:00
Anthony De Meulemeester
f7d57e4e49
VM draft + cli setup (#20)
* updated readme

* added basic cmd.

* added seperate folders for cmd packages.

* Fix netmodes in test + reverse bigint bytes

* glide get deps
2018-02-09 17:08:50 +01:00
Anthony De Meulemeester
b6d8271b8d
Fixed header sync issue (#17)
* headers can now sync till infinity

* fixed empty hashStop getBlock payload + test

* added more test + more binary decoding/encoding

* bump version
2018-02-07 15:16:50 +01:00
Anthony De Meulemeester
046494dd68
Implemented processing headers + added leveldb as a dependency. (#16)
* Implemented processing headers + added leveldb as a dependency.

* version 0.7.0

* put glide get and install in build_cli section
2018-02-06 07:43:32 +01:00
Anthony De Meulemeester
628656483a
bug fixes (TCP + uint256) and started core part (#14)
* Fixed TCP read + Uint256 reversed array + started on some core pieces

* Disabled some debug output + muted test

* 0.5.0
2018-02-04 20:54:51 +01:00
Anthony De Meulemeester
6e3f1ec43e
Refactor tcp transport (#11)
* refactored tcp transport

* return errors on outgoing messages

* TCP transport should report its error after reading from connection

* handle error returned from peer transport

* bump version

* cleaned up error
2018-02-02 11:02:25 +01:00
Anthony De Meulemeester
66c8fc8012
merge original into coz repo (#10)
merged with the original repo.
2018-02-01 21:28:45 +01:00
Charlie Revett
dd94086a22
CircleCI 2 & Releases (#9) 2018-02-01 10:54:23 -08:00
anthdm
b416a51db7 tweaked TCP transport + finished version + verack. 2018-02-01 14:53:49 +01:00
anthdm
63072ebe75 Added getheaders payload + abstracted the fields. 2018-02-01 10:56:33 +01:00
anthdm
04e9060484 Added GetBlocks payload 2018-02-01 10:25:34 +01:00
Anthony De Meulemeester
247514a502
Merge branch 'master' into master 2018-02-01 08:43:16 +01:00
anthdm
0e22ae09bd added peerCount. 2018-02-01 08:19:29 +01:00
anthdm
45ac0d237a changed string port args to int 2018-02-01 08:19:12 +01:00
anthdm
572bd813cd implemented the start of JSON-RPC 2018-02-01 08:18:38 +01:00
anthdm
626a82b93e deleted proxy functions + moved TCPPeer to tcp file 2018-01-31 22:14:13 +01:00
anthdm
0eeb15f62d refactor server RPC. 2018-01-31 20:47:20 +01:00
anthdm
283f3c5a89 Set the listener of the server when opened. 2018-01-31 20:47:20 +01:00
anthdm
861882ff83 refactor server RPC. 2018-01-31 20:11:08 +01:00
anthdm
9dc30bb9e8 Set the listener of the server when opened. 2018-01-31 14:32:57 +01:00
anthdm
55b4ab4192 Block binary decoding + transaction types 2018-01-31 11:47:54 +01:00
anthdm
0c9d2dd04e Block message + handle the length of the user agent better. 2018-01-31 09:27:08 +01:00
anthdm
e9f9354b86 added core block type 2018-01-30 11:56:36 +01:00
anthdm
d4a96267c6 Refactor version msg 2018-01-29 19:17:49 +01:00
anthdm
6f08d967ba added basic checksum test. + fix travis build 2018-01-29 08:42:49 +01:00
anthdm
55a9dc5feb Added extra comments. 2018-01-29 08:11:08 +01:00
anthdm
3cc2a6381b handle inventory message. 2018-01-28 18:42:22 +01:00
anthdm
5799cdb3ea handle address list message. 2018-01-28 17:59:06 +01:00
anthdm
8bbe1435fb huge message and payload refactor. 2018-01-28 16:06:41 +01:00
anthdm
1821ff1a0e handle address list message. 2018-01-28 14:59:32 +01:00
anthdm
1eab73d560 port byte order to big endian 2018-01-28 11:20:42 +01:00
anthdm
9c152bae79 unmarshal addressList 2018-01-28 11:12:05 +01:00
anthdm
68088d816c checked missing files for inventory. 2018-01-28 08:05:35 +01:00
anthdm
f28d8f9ab6 uint256 + inventoryType 2018-01-28 08:03:18 +01:00