175 lines
8.3 KiB
Go
175 lines
8.3 KiB
Go
// Copyright 2017-2021 DERO Project. All rights reserved.
|
|
// Use of this source code in any form is governed by RESEARCH license.
|
|
// license can be found in the LICENSE file.
|
|
// GPG: 0F39 E425 8C65 3947 702A 8234 08B2 0360 A03A 9DE8
|
|
//
|
|
//
|
|
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
|
|
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
|
|
// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
|
|
// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
|
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
|
|
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
|
|
// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
|
|
// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
|
|
package p2p
|
|
|
|
import "fmt"
|
|
import "strings"
|
|
import "github.com/deroproject/derohe/cryptography/crypto"
|
|
|
|
// This file defines the structure for the protocol which is CBOR ( which is standard) stream multiplexed using yamux
|
|
// stream multiplexing allows us have bidirection RPC using net/rpc
|
|
// the p2p package is currently the most complex within the entire project
|
|
|
|
// the protocol is partly syncronous, partly asyncronous
|
|
|
|
// used to parse incoming packet for for command , so as a repective command command could be triggered
|
|
type Common_Struct struct {
|
|
Height int64 `cbor:"HEIGHT"`
|
|
TopoHeight int64 `cbor:"THEIGHT"`
|
|
StableHeight int64 `cbor:"SHEIGHT"`
|
|
StateHash [32]byte `cbor:"STATE"`
|
|
PeerList []Peer_Info `cbor:"PLIST,omitempty"` // it will contain peerlist every 30 minutes
|
|
T0 int64 `cbor:"T0,omitempty"` // see https://en.wikipedia.org/wiki/Network_Time_Protocol
|
|
T1 int64 `cbor:"T1,omitempty"` // time when this was sent, in unixmicro
|
|
T2 int64 `cbor:"T2,omitempty"` // time when this was sent, in unixmicro
|
|
Top_Version uint64 `cbor:"HF"` // this basically represents the hard fork version
|
|
}
|
|
|
|
type Dummy struct { // empty strcut returned
|
|
Common Common_Struct `cbor:"COMMON"` // add all fields of Common
|
|
}
|
|
|
|
// at start, client sends handshake and server will respond to handshake
|
|
type Handshake_Struct struct {
|
|
Common Common_Struct `cbor:"COMMON"` // add all fields of Common
|
|
ProtocolVersion string `cbor:"PVERSION"` // version is a sematic version string semver
|
|
Tag string `cbor:"TAG"` // user specific tag
|
|
DaemonVersion string `cbor:"DVERSION"`
|
|
UTC_Time int64 `cbor:"UTC"`
|
|
Local_Port uint32 `cbor:"LP"`
|
|
Peer_ID uint64 `cbor:"PID"`
|
|
Pruned int64 `cbor:"PRUNED"`
|
|
Network_ID [16]byte `cbor:"NID"` // 16 bytes
|
|
Flags []string `cbor:"FLAGS"`
|
|
PeerList []Peer_Info `cbor:"PLIST"`
|
|
Extension_List []string `cbor:"EXT"`
|
|
Request bool `cbor:"REQUEST"` //whether this is a request
|
|
}
|
|
|
|
type Peer_Info struct {
|
|
Addr string `cbor:"ADDR"` // ip:port pair
|
|
Miner bool `cbor:"MINER"`
|
|
//ID uint64 `cbor:"I"`
|
|
//LastSeen uint64 `cbor:"LS"`
|
|
}
|
|
|
|
type Chain_Request_Struct struct { // our version of chain
|
|
Common Common_Struct `cbor:"COMMON"` // add all fields of Common
|
|
Block_list [][32]byte `cbor:"BLIST"` // block list
|
|
TopoHeights []int64 `cbor:"TOPO"` // topo heights of added blocks
|
|
}
|
|
|
|
type Chain_Response_Struct struct { // peers gives us point where to get the chain
|
|
Common Common_Struct `cbor:"COMMON"` // add all fields of Common
|
|
Start_height int64 `cbor:"SH"`
|
|
Start_topoheight int64 `cbor:"STH"`
|
|
Block_list [][32]byte `cbor:"BLIST"`
|
|
TopBlocks [][32]byte `cbor:"TOPBLOCKS"` // top blocks used for faster syncronisation of alt-tips
|
|
// this contains all blocks hashes for the last 10 heights, heightwise ordered
|
|
}
|
|
|
|
type ObjectList struct {
|
|
Common Common_Struct `cbor:"COMMON"` // add all fields of Common
|
|
Sent int64 `cbor:"SENT,omitempty"` // this is timestamp in microsecs only filled in notifications, and must be passed down
|
|
Block_list [][32]byte `cbor:"BLIST,omitempty"`
|
|
Tx_list [][32]byte `cbor:"TXLIST,omitempty"`
|
|
Chunk_list [][32 + 1 + 32]byte `cbor:"CLIST,omitempty"` // CLIST, first is block id, last byte is chunkid, max 255 chunks supported
|
|
}
|
|
|
|
type Objects struct {
|
|
Common Common_Struct `cbor:"COMMON"` // add all fields of Common
|
|
Sent int64 `cbor:"SENT,omitempty"` // this is timestamp in microsecs only filled in notifications, and must be passed down
|
|
CBlocks []Complete_Block `cbor:"CBLOCKS,omitempty"`
|
|
Txs [][]byte `cbor:"TXS,omitempty"`
|
|
MiniBlocks [][]byte `cbor:"MBLS,omitempty"` // miniblocks
|
|
Chunks []Block_Chunk `cbor:"CHUNKS,omitempty"` // all requested chunks are here
|
|
}
|
|
|
|
// used to request what all changes are done by the block to the chain
|
|
type ChangeList struct {
|
|
Common Common_Struct `cbor:"COMMON"` // add all fields of Common
|
|
TopoHeights []int64 `cbor:"TOPO"`
|
|
}
|
|
|
|
type Changes struct {
|
|
Common Common_Struct `cbor:"COMMON"` // add all fields of Common
|
|
CBlocks []Complete_Block `cbor:"CBLOCKS"`
|
|
KeyCount int64 `cbor:"KEYCOUNT"`
|
|
SCKeyCount int64 `cbor:"SCKEYCOUNT"`
|
|
}
|
|
|
|
type Request_Tree_Section_Struct struct {
|
|
Common Common_Struct `cbor:"COMMON"` // add all fields of Common
|
|
Topo int64 `cbor:"TOPO"` // request section from the balance tree of this topo
|
|
TreeName []byte `cbor:"TREENAME,omitempty"` // changes to state tree
|
|
Section []byte `cbor:"SECTION"` // section path from which data must be received
|
|
SectionLength uint64 `cbor:"SECTIONL"` // section length in bits
|
|
}
|
|
|
|
type Response_Tree_Section_Struct struct {
|
|
Common Common_Struct `cbor:"COMMON"` // add all fields of Common
|
|
Topo int64 `cbor:"TOPO"` // request section from the balance tree of this topo
|
|
TreeName []byte `cbor:"TREENAME,omitempty"` // changes to state tree
|
|
Section []byte `cbor:"SECTION"`
|
|
SectionLength uint64 `cbor:"SECTIONL"` // section length in bits
|
|
StateHash [32]byte `cbor:"STATE"`
|
|
Keys [][]byte `cbor:"KEYS,omitempty"` // changes to state tree
|
|
Values [][]byte `cbor:"VALUES,omitempty"` // changes to state tree
|
|
}
|
|
|
|
type Tree_Changes struct {
|
|
TreeName []byte `cbor:"TREENAME,omitempty"` // changes to state tree
|
|
Keys [][]byte `cbor:"KEYS,omitempty"` // changes to state tree
|
|
Values [][]byte `cbor:"VALUES,omitempty"` // changes to state tree
|
|
}
|
|
|
|
type Complete_Block struct {
|
|
Block []byte `cbor:"BLOCK,omitempty"`
|
|
Txs [][]byte `cbor:"TXS,omitempty"`
|
|
Difficulty string `cbor:"DIFF,omitempty"` // Diff
|
|
Changes []Tree_Changes `cbor:"CHANGES,omitempty"` // changes to state tree
|
|
}
|
|
|
|
type Block_Chunk struct {
|
|
Type uint16 `cbor:"T"` // used for denote object type
|
|
HHash [32]byte `cbor:"BLH"` // used for checks
|
|
BLID [32]byte `cbor:"BLID"` // blid for which this chunk belongs
|
|
DSIZE uint `cbor:"DSIZE"` // Datasize in bytes
|
|
BLOCK []byte `cbor:"BL"` // block itself,together with miniblock, and txhashes, txs are part of data
|
|
CHUNK_COUNT uint `cbor:"CC"` // total chunks
|
|
CHUNK_NEED uint `cbor:"CN"` // chunks needed to decode the data
|
|
CHUNK_HASH []uint64 `cbor:"CH"` // all chubk hashes truncated to 8 bytes
|
|
CHUNK_ID uint `cbor:"CID"` // this chunkid, 0 based
|
|
CHUNK_DATA []byte `cbor:"CD"` // chunkdata
|
|
}
|
|
|
|
type TXSET struct {
|
|
Txs [][]byte `cbor:"TXS"`
|
|
}
|
|
|
|
func (x *Block_Chunk) HeaderHash() [32]byte {
|
|
var chunk_hashes []string
|
|
|
|
for i := range x.CHUNK_HASH {
|
|
chunk_hashes = append(chunk_hashes, fmt.Sprintf("%d", x.CHUNK_HASH[i]))
|
|
}
|
|
|
|
input_data := fmt.Sprintf("%d-%x-%d-%d-%d-%s", x.Type, x.BLID[:], x.DSIZE, x.CHUNK_COUNT, x.CHUNK_NEED, strings.Join(chunk_hashes, ","))
|
|
//fmt.Printf("input_data %s\n", input_data)
|
|
return crypto.Keccak256(x.BLOCK, []byte(input_data))
|
|
}
|