Commit graph

179 commits

Author SHA1 Message Date
Anna Shaleva
8444f3d816 network: refactor notary service's PostBlock
There was a deadlock while trying to finalize transaction during
PostBlock:
	1) (*Notary).PostBlock is called under the blockchain lock
	2) (*Notary).onTransaction is called inside the PostBlock
	3) (*Notary).onTransaction needs to RLock the blockchain to add
completed transaction to the memory pool (and the blockchain is Lock'ed
by this moment)

The problem is fixed by using notifications subsistem, because it's not
required to call (*Notary).PostBlock under the blockchain lock.
2021-02-11 17:11:36 +03:00
Anna Shaleva
5d6fdda664 network: fix P2PNotaryRequest payload broadcaster 2021-02-11 17:11:36 +03:00
Anna Shaleva
c14e34cdb5 network: add RelayP2PNotaryRequest method 2021-02-11 16:56:24 +03:00
Roman Khimov
a87b8578b2 network: stub "StateService" payloads out for now
And stop dropping connections if we're to receive them. Proper handling is
subject of #1701, but we need at least some connection-level stability for
now.
2021-02-05 14:59:41 +03:00
Roman Khimov
686f983ccf network: prevent disconnects during initial sync
Node receiving extensible payload from the future is confused and drops
connection. Note that this can still happen if the node is to loose its
synchrony.

Calling `IsInSync()` is quite expensive, so we stop doing that once synchrony
is reached (hence bool flag).
2021-02-05 14:54:43 +03:00
Anna Shaleva
bfbd096fed core: introduce mempool notifications 2021-02-02 22:01:32 +03:00
Anna Shaleva
19fa0daaa6 core, network: add Notary module 2021-02-02 22:01:20 +03:00
Evgeniy Stratonikov
9592f3e052 network: implement pool for Extensible payloads 2021-01-28 17:09:06 +03:00
Evgenii Stratonikov
43e4d3af88 oracle: integrate module in core and RPC
1. Initialization is performed via `Blockchain` methods.
2. Native Oracle contract updates list of oracle nodes
  and in-fly requests in `PostPersist`.
3. RPC uses Oracle module directly.
2021-01-28 13:00:58 +03:00
Evgeniy Stratonikov
5d83c28bc9 network: replace ConsensusType with ExtensibleType 2021-01-22 10:38:33 +03:00
Evgenii Stratonikov
5bd6c1e5cc network: fix a bug in discovery with a peer connected twice
It could be the case that checks are performed simultaneosly and
peers connections goes down from 2 to 0. We must take such case into
account and register address as good in discovery.
2020-12-25 14:36:53 +03:00
Evgenii Stratonikov
2cb536a6a1 network: provide NullPayload where necessary 2020-12-25 14:36:53 +03:00
Evgenii Stratonikov
0a5049658f network: support non-blocking broadcast
Right now a single slow peer can slow down whole network.
Do broadcast in 2 parts:
1. Perform non-blocking send to all peers if possible.
2. Perform blocking sends until message is sent to 2/3 of good peers.
2020-12-25 14:36:52 +03:00
Anna Shaleva
0b5cf78468 network: add notary request payload 2020-12-10 18:17:31 +03:00
Evgenii Stratonikov
27624946d9 network/test: add tests for server commands 2020-12-09 15:23:49 +03:00
Evgenii Stratonikov
bd81b19a7a network: fix requestTx()
2 bugs were here:
1. If amount of tx is small, no messages were sent.
2. Correctly cut byte slice if last message is small.
2020-12-09 12:04:10 +03:00
Evgenii Stratonikov
074ba5f394 network: fix GetBlocks command
Return exactly requested amount of hashes.
2020-12-09 12:04:10 +03:00
Evgenii Stratonikov
4aa1a37f3f network: fetch blocks in parallel
Blockcache size is 2000, while max request size is 500.
Try to fetch blocks in chunks starting from current height.
Lower height has priority.
2020-12-02 10:50:35 +03:00
Roman Khimov
2ce3c8b75f network: treat unsolicited addr commands as errors
See neo-project/neo#2097.
2020-11-25 13:34:38 +03:00
Evgenii Stratonikov
1869d6d460 core: allow to use state root in header 2020-11-20 17:16:32 +03:00
Evgenii Stratonikov
3e5b84348d network: retransmit stale transactions 2020-11-12 13:51:44 +03:00
Roman Khimov
38a22b44b2 network: try connecting to seeds indefinitely, use them with 0 pool
If the node is to start with seeds unavailable it will try connecting to each
of them three times, blacklist them and then sit forever waiting for
something. It's not a good behavior, it should always try connecting to seeds
if nothing else works.
2020-10-13 19:02:10 +03:00
Roman Khimov
5abec520c7 payload: limit the number of possible addresses 2020-10-07 23:29:20 +03:00
Evgenii Stratonikov
282b55494b consensus: allow to shutdown service 2020-09-18 12:07:01 +03:00
Roman Khimov
b78bc7f097 network: fix tx requests, we can't ask more than 500 txes at once 2020-09-09 20:46:31 +03:00
Roman Khimov
097b2b8e78 network: fail fast in iteratePeersWithSendMsg
This easily saves us some allocations for single node.
2020-09-09 20:46:31 +03:00
Roman Khimov
8d19f0e6f5 network: don't request block we already have
GetBlockByIndex handler starts sending blocks right from the start index and
if that index is s.chain.BlockHeight() then we're requesting and receiving a
block we already have.
2020-08-14 16:25:13 +03:00
Roman Khimov
c8cc91eeee network: request blocks when there is a ping with bigger than ours height
Turns out, C# node no longer broadcasts an Inv when it's creating a block,
instead it sends a ping and if we're not paying attention to the height
specified there we're technically missing a new block. Of course we'll get it
later after ping timer expiration and regular ping/pong sequence, but that's
delaying it for no good reason.
2020-08-14 16:22:15 +03:00
Roman Khimov
205f52c563 core: use error wrapping to provide more details 2020-08-07 12:21:52 +03:00
Anna Shaleva
6c8accf18c core, network: request blocks instead of headers
Closes #1192

1. We now have CMDGetBlockByIndex, so there's no need to request headers
   first when we can just ask for blocks.
2. We don't ask for headers (i.e. we don't send CMDGetHeaders),
   consequently, we shouldn't react on CMDHeaders.
3. But we still keep on reacting on CMDGetHeaders command as
   there could be a node which needs headers.
2020-08-04 17:52:34 +03:00
Anna Shaleva
f6f3863e0e network: allow to GetHeaders by index
Use GetBlockByIndex payload for GetHeaders command instead of GetBlocks
payload.
2020-08-04 17:52:34 +03:00
Anna Shaleva
7b1c305000 network: fix handleGetBlockByIndexCmd method
It returned an error in case if block wasn't found (it might be when our
chain is lower). Fixed. It also should return all requested blocks, not
the first one.
2020-08-04 17:52:34 +03:00
Anna Shaleva
0b0591fc34 network: allow to use -1 to specify GetBlockByIndex.Count 2020-08-04 17:52:34 +03:00
Anna Shaleva
737ba700e9 network: rename GetBlockData command
GetBlockData -> GetBlockByIndex
2020-08-04 17:52:34 +03:00
Roman Khimov
432cef59f4 network: copy peers for Shutdown iteration
We can't lock them (or there will be a deadlock), but we need to fix this:

fatal error: concurrent map iteration and map write

goroutine 1 [running]:
runtime.throw(0xdec086, 0x26)
        /usr/lib64/go/1.12/src/runtime/panic.go:617 +0x72 fp=0xc02fec2bf8 sp=0xc02fec2bc8 pc=0x42d932
runtime.mapiternext(0xc02fec2d40)
        /usr/lib64/go/1.12/src/runtime/map.go:860 +0x597 fp=0xc02fec2c80 sp=0xc02fec2bf8 pc=0x40efe7
github.com/nspcc-dev/neo-go/pkg/network.(*Server).Shutdown(0xc0000fc160)
        /home/rik/dev/neo-go2/pkg/network/server.go:194 +0x238 fp=0xc02fec2db0 sp=0xc02fec2c80 pc=0xa89da8
github.com/nspcc-dev/neo-go/cli/server.startServer(0xc0000fcc60, 0x0, 0x0)
        /home/rik/dev/neo-go2/cli/server/server.go:399 +0x7a9 fp=0xc02fec3820 sp=0xc02fec2db0 pc=0xae2079
...
2020-07-17 19:03:12 +03:00
Anna Shaleva
db5b42b601 network: update CMDUncknown
Closes #1135
2020-07-16 06:58:55 +03:00
Evgenii Stratonikov
57bb2f73de network: implement CMDMempool command
CMDMempool returns hashes of transactions in mempool in chunks.
2020-06-24 10:46:26 +03:00
Roman Khimov
bbe174ee4a network: fix inverted logic of address addition to the pool
Fix #1066.
2020-06-18 21:34:45 +03:00
Roman Khimov
b483c38593 block/transaction: add network magic into the hash
We make it explicit in the appropriate Block/Transaction structures, not via a
singleton as C# node does. I think this approach has a bit more potential and
allows better packages reuse for different purposes.
2020-06-18 12:39:50 +03:00
Anna Shaleva
3418e4f7f4 rpc: update getversion RPC-call
closes #1035
2020-06-10 10:47:11 +03:00
Roman Khimov
a446821753
Merge pull request #980 from nspcc-dev/neo3/protocol/version_payload_optimisation
protocol: add node capabilities
2020-05-27 19:13:00 +03:00
Anna Shaleva
7547a3efe1 network: minor code refactoring
We need to handle IPv6 addresses correctly and net.JoinHostPort takes it
into account.
2020-05-27 19:04:09 +03:00
Anna Shaleva
8c5c248e79 protocol: add capabilities to address payload
Part of #871
2020-05-27 19:02:25 +03:00
Anna Shaleva
c590cc02f4 protocol: add capabilities to version payload
closes #871
2020-05-27 19:01:14 +03:00
Roman Khimov
b7d2b659b4 network: get blocks directly from the chain for rebroadcasting
Simplify network<->consensus relations, also broadcast blocks received by
other means like RPC.
2020-05-25 00:27:39 +03:00
Roman Khimov
462022bbdd consensus: remove OnNewBlock(), use Blockchain subscription
Get new blocks directly from the Blockchain. It may lead to some duplications
(as we'll also receive our own blocks), but at the same time it's more
correct, because technically we can also get blocks via other means besides
network server like RPC (submitblock call). And it simplifies network server
at the same time.
2020-05-25 00:27:39 +03:00
Roman Khimov
bd98940a54
Merge pull request #982 from nspcc-dev/neo3/protocol/getblockdata
protocol: implement getblockdata p2p command
2020-05-22 19:28:42 +03:00
Anna Shaleva
8142caaf8b protocol: implement getblockdata p2p command
closes #891
2020-05-22 19:16:49 +03:00
Anna Shaleva
2f6a3e9af5 protocol: refactor getblocks payload
closes #890
2020-05-22 17:33:59 +03:00
Anna Shaleva
64a2fb63e1 protocol: move magic exchange to version payload
closes #889
2020-05-21 14:23:41 +03:00