github.com/codingfuture/orig-energi3@v0.8.4/energi/common/enode.go (about)

     1  // Copyright 2019 The Energi Core Authors
     2  // This file is part of the Energi Core library.
     3  //
     4  // The Energi Core library is free software: you can redistribute it and/or modify
     5  // it under the terms of the GNU Lesser General Public License as published by
     6  // the Free Software Foundation, either version 3 of the License, or
     7  // (at your option) any later version.
     8  //
     9  // The Energi Core library is distributed in the hope that it will be useful,
    10  // but WITHOUT ANY WARRANTY; without even the implied warranty of
    11  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
    12  // GNU Lesser General Public License for more details.
    13  //
    14  // You should have received a copy of the GNU Lesser General Public License
    15  // along with the Energi Core library. If not, see <http://www.gnu.org/licenses/>.
    16  
    17  package common
    18  
    19  import (
    20  	"net"
    21  
    22  	"github.com/ethereum/go-ethereum/crypto"
    23  	"github.com/ethereum/go-ethereum/log"
    24  	"github.com/ethereum/go-ethereum/p2p/enode"
    25  	"github.com/ethereum/go-ethereum/params"
    26  )
    27  
    28  func MastenodeEnode(ipv4address uint32, pubkey [2][32]byte, cfg *params.ChainConfig) *enode.Node {
    29  	ip := net.IPv4(
    30  		byte(ipv4address>>24),
    31  		byte(ipv4address>>16),
    32  		byte(ipv4address>>8),
    33  		byte(ipv4address),
    34  	)
    35  
    36  	pubkey_buf := make([]byte, 33)
    37  	copy(pubkey_buf[:32], pubkey[0][:])
    38  	copy(pubkey_buf[32:33], pubkey[1][:])
    39  	pk, err := crypto.DecompressPubkey(pubkey_buf)
    40  	if err != nil {
    41  		log.Error("Failed to unmarshal Masternode pubkey")
    42  		return nil
    43  	}
    44  
    45  	return enode.NewV4(pk, ip, int(cfg.ChainID.Int64()), int(cfg.ChainID.Int64()))
    46  }