Release v0.3.0

vendor/github.com/ltcsuite/ltcd/wire/protocol.go

@@ -0,0 +1,182 @@
+// Copyright (c) 2013-2016 The btcsuite developers
+// Use of this source code is governed by an ISC
+// license that can be found in the LICENSE file.
+
+package wire
+
+import (
+	"fmt"
+	"strconv"
+	"strings"
+)
+
+// XXX pedro: we will probably need to bump this.
+const (
+	// ProtocolVersion is the latest protocol version this package supports.
+	ProtocolVersion uint32 = 70015
+
+	// MultipleAddressVersion is the protocol version which added multiple
+	// addresses per message (pver >= MultipleAddressVersion).
+	MultipleAddressVersion uint32 = 209
+
+	// NetAddressTimeVersion is the protocol version which added the
+	// timestamp field (pver >= NetAddressTimeVersion).
+	NetAddressTimeVersion uint32 = 31402
+
+	// BIP0031Version is the protocol version AFTER which a pong message
+	// and nonce field in ping were added (pver > BIP0031Version).
+	BIP0031Version uint32 = 60000
+
+	// BIP0035Version is the protocol version which added the mempool
+	// message (pver >= BIP0035Version).
+	BIP0035Version uint32 = 60002
+
+	// BIP0037Version is the protocol version which added new connection
+	// bloom filtering related messages and extended the version message
+	// with a relay flag (pver >= BIP0037Version).
+	BIP0037Version uint32 = 70001
+
+	// RejectVersion is the protocol version which added a new reject
+	// message.
+	RejectVersion uint32 = 70002
+
+	// BIP0111Version is the protocol version which added the SFNodeBloom
+	// service flag.
+	BIP0111Version uint32 = 70011
+
+	// SendHeadersVersion is the protocol version which added a new
+	// sendheaders message.
+	SendHeadersVersion uint32 = 70012
+
+	// FeeFilterVersion is the protocol version which added a new
+	// feefilter message.
+	FeeFilterVersion uint32 = 70013
+)
+
+// ServiceFlag identifies services supported by a bitcoin peer.
+type ServiceFlag uint64
+
+const (
+	// SFNodeNetwork is a flag used to indicate a peer is a full node.
+	SFNodeNetwork ServiceFlag = 1 << iota
+
+	// SFNodeGetUTXO is a flag used to indicate a peer supports the
+	// getutxos and utxos commands (BIP0064).
+	SFNodeGetUTXO
+
+	// SFNodeBloom is a flag used to indicate a peer supports bloom
+	// filtering.
+	SFNodeBloom
+
+	// SFNodeWitness is a flag used to indicate a peer supports blocks
+	// and transactions including witness data (BIP0144).
+	SFNodeWitness
+
+	// SFNodeXthin is a flag used to indicate a peer supports xthin blocks.
+	SFNodeXthin
+
+	// SFNodeBit5 is a flag used to indicate a peer supports a service
+	// defined by bit 5.
+	SFNodeBit5
+
+	// SFNodeCF is a flag used to indicate a peer supports committed
+	// filters (CFs).
+	SFNodeCF
+
+	// SFNode2X is a flag used to indicate a peer is running the Segwit2X
+	// software.
+	SFNode2X
+)
+
+// Map of service flags back to their constant names for pretty printing.
+var sfStrings = map[ServiceFlag]string{
+	SFNodeNetwork: "SFNodeNetwork",
+	SFNodeGetUTXO: "SFNodeGetUTXO",
+	SFNodeBloom:   "SFNodeBloom",
+	SFNodeWitness: "SFNodeWitness",
+	SFNodeXthin:   "SFNodeXthin",
+	SFNodeBit5:    "SFNodeBit5",
+	SFNodeCF:      "SFNodeCF",
+	SFNode2X:      "SFNode2X",
+}
+
+// orderedSFStrings is an ordered list of service flags from highest to
+// lowest.
+var orderedSFStrings = []ServiceFlag{
+	SFNodeNetwork,
+	SFNodeGetUTXO,
+	SFNodeBloom,
+	SFNodeWitness,
+	SFNodeXthin,
+	SFNodeBit5,
+	SFNodeCF,
+	SFNode2X,
+}
+
+// String returns the ServiceFlag in human-readable form.
+func (f ServiceFlag) String() string {
+	// No flags are set.
+	if f == 0 {
+		return "0x0"
+	}
+
+	// Add individual bit flags.
+	s := ""
+	for _, flag := range orderedSFStrings {
+		if f&flag == flag {
+			s += sfStrings[flag] + "|"
+			f -= flag
+		}
+	}
+
+	// Add any remaining flags which aren't accounted for as hex.
+	s = strings.TrimRight(s, "|")
+	if f != 0 {
+		s += "|0x" + strconv.FormatUint(uint64(f), 16)
+	}
+	s = strings.TrimLeft(s, "|")
+	return s
+}
+
+// BitcoinNet represents which bitcoin network a message belongs to.
+type BitcoinNet uint32
+
+// Constants used to indicate the message bitcoin network.  They can also be
+// used to seek to the next message when a stream's state is unknown, but
+// this package does not provide that functionality since it's generally a
+// better idea to simply disconnect clients that are misbehaving over TCP.
+const (
+	// MainNet represents the main litecoin network.
+	MainNet BitcoinNet = 0xdbb6c0fb
+
+	// TestNet represents the regression test network.
+	TestNet BitcoinNet = 0xdab5bffa
+
+	// TestNet3 represents the test network (version 3).
+	TestNet3 BitcoinNet = 0x0709110b
+
+	// TestNet4 represents the test network (version 4).
+	TestNet4 BitcoinNet = 0xf1c8d2fd
+
+	// SimNet represents the simulation test network.
+	SimNet BitcoinNet = 0x12141c16
+)
+
+// bnStrings is a map of bitcoin networks back to their constant names for
+// pretty printing.
+var bnStrings = map[BitcoinNet]string{
+	MainNet:  "MainNet",
+	TestNet:  "TestNet",
+	TestNet3: "TestNet3",
+	TestNet4: "TestNet4",
+	SimNet:   "SimNet",
+}
+
+// String returns the BitcoinNet in human-readable form.
+func (n BitcoinNet) String() string {
+	if s, ok := bnStrings[n]; ok {
+		return s
+	}
+
+	return fmt.Sprintf("Unknown BitcoinNet (%d)", uint32(n))
+}