142 lines
6.4 KiB
Go
142 lines
6.4 KiB
Go
// Copyright 2017-2021 DERO Project. All rights reserved.
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// Use of this source code in any form is governed by RESEARCH license.
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// license can be found in the LICENSE file.
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// GPG: 0F39 E425 8C65 3947 702A 8234 08B2 0360 A03A 9DE8
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//
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
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// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
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// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
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// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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package p2p
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// This file defines the structure for the protocol which is CBOR ( which is standard) stream multiplexed using yamux
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// stream multiplexing allows us have bidirection RPC using net/rpc
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// the p2p package is currently the most complex within the entire project
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// the protocol is partly syncronous, partly asyncronous
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// used to parse incoming packet for for command , so as a repective command command could be triggered
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type Common_Struct struct {
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Height int64 `cbor:"HEIGHT"`
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TopoHeight int64 `cbor:"THEIGHT"`
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StableHeight int64 `cbor:"SHEIGHT"`
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Cumulative_Difficulty string `cbor:"CDIFF"`
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StateHash [32]byte `cbor:"STATE"`
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// Top_ID [32]byte `cbor:"TOP"` // 32 bytes of Top block
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Top_Version uint64 `cbor:"HF"` // this basically represents the hard fork version
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}
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type Dummy struct {
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Common Common_Struct `cbor:"COMMON"` // add all fields of Common
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}
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// at start, client sends handshake and server will respond to handshake
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type Handshake_Struct struct {
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Common Common_Struct `cbor:"COMMON"` // add all fields of Common
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ProtocolVersion string `cbor:"PVERSION"` // version is a sematic version string semver
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Tag string `cbor:"TAG"` // user specific tag
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DaemonVersion string `cbor:"DVERSION"`
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UTC_Time int64 `cbor:"UTC"`
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Local_Port uint32 `cbor:"LP"`
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Peer_ID uint64 `cbor:"PID"`
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Pruned int64 `cbor:"PRUNED"`
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Network_ID [16]byte `cbor:"NID"` // 16 bytes
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Flags []string `cbor:"FLAGS"`
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PeerList []Peer_Info `cbor:"PLIST"`
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Extension_List []string `cbor:"EXT"`
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Request bool `cbor:"REQUEST"` //whether this is a request
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}
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type Peer_Info struct {
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Addr string `cbor:"ADDR"` // ip:port pair
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Miner bool `cbor:"MINER"`
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//ID uint64 `cbor:"I"`
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//LastSeen uint64 `cbor:"LS"`
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}
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type Sync_Struct struct { // sync packets are sent every 2 seconds
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Common Common_Struct `cbor:"COMMON"` // add all fields of Common
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PeerList []Peer_Info `cbor:"PLIST"` // update peer list
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Request bool `cbor:"REQUEST"` //whether this is a request
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}
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type Chain_Request_Struct struct { // our version of chain
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Common Common_Struct `cbor:"COMMON"` // add all fields of Common
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Block_list [][32]byte `cbor:"BLIST"` // block list
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TopoHeights []int64 `cbor:"TOPO"` // topo heights of added blocks
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}
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type Chain_Response_Struct struct { // peers gives us point where to get the chain
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Common Common_Struct `cbor:"COMMON"` // add all fields of Common
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Start_height int64 `cbor:"SH"`
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Start_topoheight int64 `cbor:"STH"`
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Block_list [][32]byte `cbor:"BLIST"`
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TopBlocks [][32]byte `cbor:"TOPBLOCKS"` // top blocks used for faster syncronisation of alt-tips
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// this contains all blocks hashes for the last 10 heights, heightwise ordered
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}
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type ObjectList struct {
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Common Common_Struct `cbor:"COMMON"` // add all fields of Common
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Block_list [][32]byte `cbor:"BLIST"`
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Tx_list [][32]byte `cbor:"TXLIST"`
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}
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type Objects struct {
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Common Common_Struct `cbor:"COMMON"` // add all fields of Common
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CBlocks []Complete_Block `cbor:"CBLOCKS"`
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Txs [][]byte `cbor:"TXS"`
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}
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// used to request what all changes are done by the block to the chain
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type ChangeList struct {
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Common Common_Struct `cbor:"COMMON"` // add all fields of Common
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TopoHeights []int64 `cbor:"TOPO"`
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}
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type Changes struct {
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Common Common_Struct `cbor:"COMMON"` // add all fields of Common
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CBlocks []Complete_Block `cbor:"CBLOCKS"`
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KeyCount int64 `cbor:"KEYCOUNT"`
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SCKeyCount int64 `cbor:"SCKEYCOUNT"`
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}
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type Request_Tree_Section_Struct struct {
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Common Common_Struct `cbor:"COMMON"` // add all fields of Common
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Topo int64 `cbor:"TOPO"` // request section from the balance tree of this topo
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TreeName []byte `cbor:"TREENAME,omitempty"` // changes to state tree
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Section []byte `cbor:"SECTION"` // section path from which data must be received
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SectionLength uint64 `cbor:"SECTIONL"` // section length in bits
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}
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type Response_Tree_Section_Struct struct {
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Common Common_Struct `cbor:"COMMON"` // add all fields of Common
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Topo int64 `cbor:"TOPO"` // request section from the balance tree of this topo
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TreeName []byte `cbor:"TREENAME,omitempty"` // changes to state tree
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Section []byte `cbor:"SECTION"`
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SectionLength uint64 `cbor:"SECTIONL"` // section length in bits
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StateHash [32]byte `cbor:"STATE"`
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Keys [][]byte `cbor:"KEYS,omitempty"` // changes to state tree
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Values [][]byte `cbor:"VALUES,omitempty"` // changes to state tree
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}
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type Tree_Changes struct {
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TreeName []byte `cbor:"TREENAME,omitempty"` // changes to state tree
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Keys [][]byte `cbor:"KEYS,omitempty"` // changes to state tree
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Values [][]byte `cbor:"VALUES,omitempty"` // changes to state tree
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}
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type Complete_Block struct {
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Block []byte `cbor:"BLOCK"`
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Txs [][]byte `cbor:"TXS"`
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Difficulty string `cbor:"DIFF,omitempty"` // Diff
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Cumulative_Difficulty string `cbor:"CDIFF,omitempty"` // CDiff
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Changes []Tree_Changes `cbor:"CHANGES,omitempty"` // changes to state tree
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}
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