Merge pull request #1 from ethereum/master

Pull latest changes

.github/CODEOWNERS

@@ -9,4 +9,24 @@ les/               @zsfelfoldi
 light/                          @zsfelfoldi
 mobile/                         @karalabe
 p2p/                            @fjl @zsfelfoldi
+swarm/bmt                       @zelig
+swarm/dev                       @lmars
+swarm/fuse                      @jmozah @holisticode
+swarm/grafana_dashboards        @nonsense
+swarm/metrics                   @nonsense @holisticode
+swarm/multihash                 @nolash
+swarm/network/bitvector         @zelig @janos @gbalint
+swarm/network/priorityqueue     @zelig @janos @gbalint
+swarm/network/simulations       @zelig
+swarm/network/stream            @janos @zelig @gbalint @holisticode @justelad
+swarm/network/stream/intervals  @janos
+swarm/network/stream/testing    @zelig
+swarm/pot                       @zelig
+swarm/pss                       @nolash @zelig @nonsense
+swarm/services                  @zelig
+swarm/state                     @justelad
+swarm/storage/encryption        @gbalint @zelig @nagydani
+swarm/storage/mock              @janos
+swarm/storage/mru               @nolash
+swarm/testutil                  @lmars
 whisper/                        @gballet @gluk256

.travis.yml

@@ -152,10 +152,10 @@ matrix:
         - export GOPATH=$HOME/go
       script:
         # Build the Android archive and upload it to Maven Central and Azure
-        - curl https://dl.google.com/android/repository/android-ndk-r16b-linux-x86_64.zip -o android-ndk-r16b.zip
+        - curl https://dl.google.com/android/repository/android-ndk-r17b-linux-x86_64.zip -o android-ndk-r17b.zip
-        - unzip -q android-ndk-r16b.zip && rm android-ndk-r16b.zip
+        - unzip -q android-ndk-r17b.zip && rm android-ndk-r17b.zip
-        - mv android-ndk-r16b $HOME
+        - mv android-ndk-r17b $HOME
-        - export ANDROID_NDK=$HOME/android-ndk-r16b
+        - export ANDROID_NDK=$HOME/android-ndk-r17b
 
         - mkdir -p $GOPATH/src/github.com/ethereum
         - ln -s `pwd` $GOPATH/src/github.com/ethereum

VERSION

@@ -1 +1 @@
-1.8.12
+1.8.13

accounts/abi/numbers.go

@@ -31,29 +31,14 @@ var (
 	uint16T   = reflect.TypeOf(uint16(0))
 	uint32T   = reflect.TypeOf(uint32(0))
 	uint64T   = reflect.TypeOf(uint64(0))
-	intT      = reflect.TypeOf(int(0))
 	int8T     = reflect.TypeOf(int8(0))
 	int16T    = reflect.TypeOf(int16(0))
 	int32T    = reflect.TypeOf(int32(0))
 	int64T    = reflect.TypeOf(int64(0))
 	addressT  = reflect.TypeOf(common.Address{})
-	intTS     = reflect.TypeOf([]int(nil))
-	int8TS    = reflect.TypeOf([]int8(nil))
-	int16TS   = reflect.TypeOf([]int16(nil))
-	int32TS   = reflect.TypeOf([]int32(nil))
-	int64TS   = reflect.TypeOf([]int64(nil))
 )
 
 // U256 converts a big Int into a 256bit EVM number.
 func U256(n *big.Int) []byte {
 	return math.PaddedBigBytes(math.U256(n), 32)
 }
-
-// checks whether the given reflect value is signed. This also works for slices with a number type
-func isSigned(v reflect.Value) bool {
-	switch v.Type() {
-	case intTS, int8TS, int16TS, int32TS, int64TS, intT, int8T, int16T, int32T, int64T:
-		return true
-	}
-	return false
-}

accounts/abi/numbers_test.go

@@ -19,7 +19,6 @@ package abi
 import (
 	"bytes"
 	"math/big"
-	"reflect"
 	"testing"
 )
 
@@ -32,13 +31,3 @@ func TestNumberTypes(t *testing.T) {
 		t.Errorf("expected %x got %x", ubytes, unsigned)
 	}
 }
-
-func TestSigned(t *testing.T) {
-	if isSigned(reflect.ValueOf(uint(10))) {
-		t.Error("signed")
-	}
-
-	if !isSigned(reflect.ValueOf(int(10))) {
-		t.Error("not signed")
-	}
-}

accounts/usbwallet/internal/trezor/trezor.go

@@ -36,7 +36,7 @@ func Type(msg proto.Message) uint16 {
 }
 
 // Name returns the friendly message type name of a specific protocol buffer
-// type numbers.
+// type number.
 func Name(kind uint16) string {
 	name := MessageType_name[int32(kind)]
 	if len(name) < 12 {

accounts/usbwallet/ledger.go

@@ -302,7 +302,7 @@ func (w *ledgerDriver) ledgerSign(derivationPath []uint32, tx *types.Transaction
 	for i, component := range derivationPath {
 		binary.BigEndian.PutUint32(path[1+4*i:], component)
 	}
-	// Create the transaction RLP based on whether legacy or EIP155 signing was requeste
+	// Create the transaction RLP based on whether legacy or EIP155 signing was requested
 	var (
 		txrlp []byte
 		err   error

bmt/bmt.go

@@ -1,560 +0,0 @@
-// Copyright 2017 The go-ethereum Authors
-// This file is part of the go-ethereum library.
-//
-// The go-ethereum library is free software: you can redistribute it and/or modify
-// it under the terms of the GNU Lesser General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// The go-ethereum library is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-// GNU Lesser General Public License for more details.
-//
-// You should have received a copy of the GNU Lesser General Public License
-// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
-
-// Package bmt provides a binary merkle tree implementation
-package bmt
-
-import (
-	"fmt"
-	"hash"
-	"io"
-	"strings"
-	"sync"
-	"sync/atomic"
-)
-
-/*
-Binary Merkle Tree Hash is a hash function over arbitrary datachunks of limited size
-It is defined as the root hash of the binary merkle tree built over fixed size segments
-of the underlying chunk using any base hash function (e.g keccak 256 SHA3)
-
-It is used as the chunk hash function in swarm which in turn is the basis for the
-128 branching swarm hash http://swarm-guide.readthedocs.io/en/latest/architecture.html#swarm-hash
-
-The BMT is optimal for providing compact inclusion proofs, i.e. prove that a
-segment is a substring of a chunk starting at a particular offset
-The size of the underlying segments is fixed at 32 bytes (called the resolution
-of the BMT hash), the EVM word size to optimize for on-chain BMT verification
-as well as the hash size optimal for inclusion proofs in the merkle tree of the swarm hash.
-
-Two implementations are provided:
-
-* RefHasher is optimized for code simplicity and meant as a reference implementation
-* Hasher is optimized for speed taking advantage of concurrency with minimalistic
-  control structure to coordinate the concurrent routines
-  It implements the ChunkHash interface as well as the go standard hash.Hash interface
-
-*/
-
-const (
-	// DefaultSegmentCount is the maximum number of segments of the underlying chunk
-	DefaultSegmentCount = 128 // Should be equal to storage.DefaultBranches
-	// DefaultPoolSize is the maximum number of bmt trees used by the hashers, i.e,
-	// the maximum number of concurrent BMT hashing operations performed by the same hasher
-	DefaultPoolSize = 8
-)
-
-// BaseHasher is a hash.Hash constructor function used for the base hash of the  BMT.
-type BaseHasher func() hash.Hash
-
-// Hasher a reusable hasher for fixed maximum size chunks representing a BMT
-// implements the hash.Hash interface
-// reuse pool of Tree-s for amortised memory allocation and resource control
-// supports order-agnostic concurrent segment writes
-// as well as sequential read and write
-// can not be called concurrently on more than one chunk
-// can be further appended after Sum
-// Reset gives back the Tree to the pool and guaranteed to leave
-// the tree and itself in a state reusable for hashing a new chunk
-type Hasher struct {
-	pool        *TreePool   // BMT resource pool
-	bmt         *Tree       // prebuilt BMT resource for flowcontrol and proofs
-	blocksize   int         // segment size (size of hash) also for hash.Hash
-	count       int         // segment count
-	size        int         // for hash.Hash same as hashsize
-	cur         int         // cursor position for rightmost currently open chunk
-	segment     []byte      // the rightmost open segment (not complete)
-	depth       int         // index of last level
-	result      chan []byte // result channel
-	hash        []byte      // to record the result
-	max         int32       // max segments for SegmentWriter interface
-	blockLength []byte      // The block length that needes to be added in Sum
-}
-
-// New creates a reusable Hasher
-// implements the hash.Hash interface
-// pulls a new Tree from a resource pool for hashing each chunk
-func New(p *TreePool) *Hasher {
-	return &Hasher{
-		pool:      p,
-		depth:     depth(p.SegmentCount),
-		size:      p.SegmentSize,
-		blocksize: p.SegmentSize,
-		count:     p.SegmentCount,
-		result:    make(chan []byte),
-	}
-}
-
-// Node is a reuseable segment hasher representing a node in a BMT
-// it allows for continued writes after a Sum
-// and is left in completely reusable state after Reset
-type Node struct {
-	level, index int   // position of node for information/logging only
-	initial      bool  // first and last node
-	root         bool  // whether the node is root to a smaller BMT
-	isLeft       bool  // whether it is left side of the parent double segment
-	unbalanced   bool  // indicates if a node has only the left segment
-	parent       *Node // BMT connections
-	state        int32 // atomic increment impl concurrent boolean toggle
-	left, right  []byte
-}
-
-// NewNode constructor for segment hasher nodes in the BMT
-func NewNode(level, index int, parent *Node) *Node {
-	return &Node{
-		parent:  parent,
-		level:   level,
-		index:   index,
-		initial: index == 0,
-		isLeft:  index%2 == 0,
-	}
-}
-
-// TreePool provides a pool of Trees used as resources by Hasher
-// a Tree popped from the pool is guaranteed to have clean state
-// for hashing a new chunk
-// Hasher Reset releases the Tree to the pool
-type TreePool struct {
-	lock         sync.Mutex
-	c            chan *Tree
-	hasher       BaseHasher
-	SegmentSize  int
-	SegmentCount int
-	Capacity     int
-	count        int
-}
-
-// NewTreePool creates a Tree pool with hasher, segment size, segment count and capacity
-// on GetTree it reuses free Trees or creates a new one if size is not reached
-func NewTreePool(hasher BaseHasher, segmentCount, capacity int) *TreePool {
-	return &TreePool{
-		c:            make(chan *Tree, capacity),
-		hasher:       hasher,
-		SegmentSize:  hasher().Size(),
-		SegmentCount: segmentCount,
-		Capacity:     capacity,
-	}
-}
-
-// Drain drains the pool until it has no more than n resources
-func (p *TreePool) Drain(n int) {
-	p.lock.Lock()
-	defer p.lock.Unlock()
-	for len(p.c) > n {
-		<-p.c
-		p.count--
-	}
-}
-
-// Reserve is blocking until it returns an available Tree
-// it reuses free Trees or creates a new one if size is not reached
-func (p *TreePool) Reserve() *Tree {
-	p.lock.Lock()
-	defer p.lock.Unlock()
-	var t *Tree
-	if p.count == p.Capacity {
-		return <-p.c
-	}
-	select {
-	case t = <-p.c:
-	default:
-		t = NewTree(p.hasher, p.SegmentSize, p.SegmentCount)
-		p.count++
-	}
-	return t
-}
-
-// Release gives back a Tree to the pool.
-// This Tree is guaranteed to be in reusable state
-// does not need locking
-func (p *TreePool) Release(t *Tree) {
-	p.c <- t // can never fail but...
-}
-
-// Tree is a reusable control structure representing a BMT
-// organised in a binary tree
-// Hasher uses a TreePool to pick one for each chunk hash
-// the Tree is 'locked' while not in the pool
-type Tree struct {
-	leaves []*Node
-}
-
-// Draw draws the BMT (badly)
-func (t *Tree) Draw(hash []byte, d int) string {
-	var left, right []string
-	var anc []*Node
-	for i, n := range t.leaves {
-		left = append(left, fmt.Sprintf("%v", hashstr(n.left)))
-		if i%2 == 0 {
-			anc = append(anc, n.parent)
-		}
-		right = append(right, fmt.Sprintf("%v", hashstr(n.right)))
-	}
-	anc = t.leaves
-	var hashes [][]string
-	for l := 0; len(anc) > 0; l++ {
-		var nodes []*Node
-		hash := []string{""}
-		for i, n := range anc {
-			hash = append(hash, fmt.Sprintf("%v|%v", hashstr(n.left), hashstr(n.right)))
-			if i%2 == 0 && n.parent != nil {
-				nodes = append(nodes, n.parent)
-			}
-		}
-		hash = append(hash, "")
-		hashes = append(hashes, hash)
-		anc = nodes
-	}
-	hashes = append(hashes, []string{"", fmt.Sprintf("%v", hashstr(hash)), ""})
-	total := 60
-	del := "                             "
-	var rows []string
-	for i := len(hashes) - 1; i >= 0; i-- {
-		var textlen int
-		hash := hashes[i]
-		for _, s := range hash {
-			textlen += len(s)
-		}
-		if total < textlen {
-			total = textlen + len(hash)
-		}
-		delsize := (total - textlen) / (len(hash) - 1)
-		if delsize > len(del) {
-			delsize = len(del)
-		}
-		row := fmt.Sprintf("%v: %v", len(hashes)-i-1, strings.Join(hash, del[:delsize]))
-		rows = append(rows, row)
-
-	}
-	rows = append(rows, strings.Join(left, "  "))
-	rows = append(rows, strings.Join(right, "  "))
-	return strings.Join(rows, "\n") + "\n"
-}
-
-// NewTree initialises the Tree by building up the nodes of a BMT
-// segment size is stipulated to be the size of the hash
-// segmentCount needs to be positive integer and does not need to be
-// a power of two and can even be an odd number
-// segmentSize * segmentCount determines the maximum chunk size
-// hashed using the tree
-func NewTree(hasher BaseHasher, segmentSize, segmentCount int) *Tree {
-	n := NewNode(0, 0, nil)
-	n.root = true
-	prevlevel := []*Node{n}
-	// iterate over levels and creates 2^level nodes
-	level := 1
-	count := 2
-	for d := 1; d <= depth(segmentCount); d++ {
-		nodes := make([]*Node, count)
-		for i := 0; i < len(nodes); i++ {
-			parent := prevlevel[i/2]
-			t := NewNode(level, i, parent)
-			nodes[i] = t
-		}
-		prevlevel = nodes
-		level++
-		count *= 2
-	}
-	// the datanode level is the nodes on the last level where
-	return &Tree{
-		leaves: prevlevel,
-	}
-}
-
-// methods needed by hash.Hash
-
-// Size returns the size
-func (h *Hasher) Size() int {
-	return h.size
-}
-
-// BlockSize returns the block size
-func (h *Hasher) BlockSize() int {
-	return h.blocksize
-}
-
-// Sum returns the hash of the buffer
-// hash.Hash interface Sum method appends the byte slice to the underlying
-// data before it calculates and returns the hash of the chunk
-func (h *Hasher) Sum(b []byte) (r []byte) {
-	t := h.bmt
-	i := h.cur
-	n := t.leaves[i]
-	j := i
-	// must run strictly before all nodes calculate
-	// datanodes are guaranteed to have a parent
-	if len(h.segment) > h.size && i > 0 && n.parent != nil {
-		n = n.parent
-	} else {
-		i *= 2
-	}
-	d := h.finalise(n, i)
-	h.writeSegment(j, h.segment, d)
-	c := <-h.result
-	h.releaseTree()
-
-	// sha3(length + BMT(pure_chunk))
-	if h.blockLength == nil {
-		return c
-	}
-	res := h.pool.hasher()
-	res.Reset()
-	res.Write(h.blockLength)
-	res.Write(c)
-	return res.Sum(nil)
-}
-
-// Hasher implements the SwarmHash interface
-
-// Hash waits for the hasher result and returns it
-// caller must call this on a BMT Hasher being written to
-func (h *Hasher) Hash() []byte {
-	return <-h.result
-}
-
-// Hasher implements the io.Writer interface
-
-// Write fills the buffer to hash
-// with every full segment complete launches a hasher go routine
-// that shoots up the BMT
-func (h *Hasher) Write(b []byte) (int, error) {
-	l := len(b)
-	if l <= 0 {
-		return 0, nil
-	}
-	s := h.segment
-	i := h.cur
-	count := (h.count + 1) / 2
-	need := h.count*h.size - h.cur*2*h.size
-	size := h.size
-	if need > size {
-		size *= 2
-	}
-	if l < need {
-		need = l
-	}
-	// calculate missing bit to complete current open segment
-	rest := size - len(s)
-	if need < rest {
-		rest = need
-	}
-	s = append(s, b[:rest]...)
-	need -= rest
-	// read full segments and the last possibly partial segment
-	for need > 0 && i < count-1 {
-		// push all finished chunks we read
-		h.writeSegment(i, s, h.depth)
-		need -= size
-		if need < 0 {
-			size += need
-		}
-		s = b[rest : rest+size]
-		rest += size
-		i++
-	}
-	h.segment = s
-	h.cur = i
-	// otherwise, we can assume len(s) == 0, so all buffer is read and chunk is not yet full
-	return l, nil
-}
-
-// Hasher implements the io.ReaderFrom interface
-
-// ReadFrom reads from io.Reader and appends to the data to hash using Write
-// it reads so that chunk to hash is maximum length or reader reaches EOF
-// caller must Reset the hasher prior to call
-func (h *Hasher) ReadFrom(r io.Reader) (m int64, err error) {
-	bufsize := h.size*h.count - h.size*h.cur - len(h.segment)
-	buf := make([]byte, bufsize)
-	var read int
-	for {
-		var n int
-		n, err = r.Read(buf)
-		read += n
-		if err == io.EOF || read == len(buf) {
-			hash := h.Sum(buf[:n])
-			if read == len(buf) {
-				err = NewEOC(hash)
-			}
-			break
-		}
-		if err != nil {
-			break
-		}
-		n, err = h.Write(buf[:n])
-		if err != nil {
-			break
-		}
-	}
-	return int64(read), err
-}
-
-// Reset needs to be called before writing to the hasher
-func (h *Hasher) Reset() {
-	h.getTree()
-	h.blockLength = nil
-}
-
-// Hasher implements the SwarmHash interface
-
-// ResetWithLength needs to be called before writing to the hasher
-// the argument is supposed to be the byte slice binary representation of
-// the length of the data subsumed under the hash
-func (h *Hasher) ResetWithLength(l []byte) {
-	h.Reset()
-	h.blockLength = l
-}
-
-// Release gives back the Tree to the pool whereby it unlocks
-// it resets tree, segment and index
-func (h *Hasher) releaseTree() {
-	if h.bmt != nil {
-		n := h.bmt.leaves[h.cur]
-		for ; n != nil; n = n.parent {
-			n.unbalanced = false
-			if n.parent != nil {
-				n.root = false
-			}
-		}
-		h.pool.Release(h.bmt)
-		h.bmt = nil
-
-	}
-	h.cur = 0
-	h.segment = nil
-}
-
-func (h *Hasher) writeSegment(i int, s []byte, d int) {
-	hash := h.pool.hasher()
-	n := h.bmt.leaves[i]
-
-	if len(s) > h.size && n.parent != nil {
-		go func() {
-			hash.Reset()
-			hash.Write(s)
-			s = hash.Sum(nil)
-
-			if n.root {
-				h.result <- s
-				return
-			}
-			h.run(n.parent, hash, d, n.index, s)
-		}()
-		return
-	}
-	go h.run(n, hash, d, i*2, s)
-}
-
-func (h *Hasher) run(n *Node, hash hash.Hash, d int, i int, s []byte) {
-	isLeft := i%2 == 0
-	for {
-		if isLeft {
-			n.left = s
-		} else {
-			n.right = s
-		}
-		if !n.unbalanced && n.toggle() {
-			return
-		}
-		if !n.unbalanced || !isLeft || i == 0 && d == 0 {
-			hash.Reset()
-			hash.Write(n.left)
-			hash.Write(n.right)
-			s = hash.Sum(nil)
-
-		} else {
-			s = append(n.left, n.right...)
-		}
-
-		h.hash = s
-		if n.root {
-			h.result <- s
-			return
-		}
-
-		isLeft = n.isLeft
-		n = n.parent
-		i++
-	}
-}
-
-// getTree obtains a BMT resource by reserving one from the pool
-func (h *Hasher) getTree() *Tree {
-	if h.bmt != nil {
-		return h.bmt
-	}
-	t := h.pool.Reserve()
-	h.bmt = t
-	return t
-}
-
-// atomic bool toggle implementing a concurrent reusable 2-state object
-// atomic addint with %2 implements atomic bool toggle
-// it returns true if the toggler just put it in the active/waiting state
-func (n *Node) toggle() bool {
-	return atomic.AddInt32(&n.state, 1)%2 == 1
-}
-
-func hashstr(b []byte) string {
-	end := len(b)
-	if end > 4 {
-		end = 4
-	}
-	return fmt.Sprintf("%x", b[:end])
-}
-
-func depth(n int) (d int) {
-	for l := (n - 1) / 2; l > 0; l /= 2 {
-		d++
-	}
-	return d
-}
-
-// finalise is following the zigzags on the tree belonging
-// to the final datasegment
-func (h *Hasher) finalise(n *Node, i int) (d int) {
-	isLeft := i%2 == 0
-	for {
-		// when the final segment's path is going via left segments
-		// the incoming data is pushed to the parent upon pulling the left
-		// we do not need toggle the state since this condition is
-		// detectable
-		n.unbalanced = isLeft
-		n.right = nil
-		if n.initial {
-			n.root = true
-			return d
-		}
-		isLeft = n.isLeft
-		n = n.parent
-		d++
-	}
-}
-
-// EOC (end of chunk) implements the error interface
-type EOC struct {
-	Hash []byte // read the hash of the chunk off the error
-}
-
-// Error returns the error string
-func (e *EOC) Error() string {
-	return fmt.Sprintf("hasher limit reached, chunk hash: %x", e.Hash)
-}
-
-// NewEOC creates new end of chunk error with the hash
-func NewEOC(hash []byte) *EOC {
-	return &EOC{hash}
-}

bmt/bmt_r.go

@@ -1,85 +0,0 @@
-// Copyright 2017 The go-ethereum Authors
-// This file is part of the go-ethereum library.
-//
-// The go-ethereum library is free software: you can redistribute it and/or modify
-// it under the terms of the GNU Lesser General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// The go-ethereum library is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-// GNU Lesser General Public License for more details.
-//
-// You should have received a copy of the GNU Lesser General Public License
-// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
-
-// Package bmt is a simple nonconcurrent reference implementation for hashsize segment based
-// Binary Merkle tree hash on arbitrary but fixed maximum chunksize
-//
-// This implementation does not take advantage of any paralellisms and uses
-// far more memory than necessary, but it is easy to see that it is correct.
-// It can be used for generating test cases for optimized implementations.
-// see testBMTHasherCorrectness function in bmt_test.go
-package bmt
-
-import (
-	"hash"
-)
-
-// RefHasher is the non-optimized easy to read reference implementation of BMT
-type RefHasher struct {
-	span    int
-	section int
-	cap     int
-	h       hash.Hash
-}
-
-// NewRefHasher returns a new RefHasher
-func NewRefHasher(hasher BaseHasher, count int) *RefHasher {
-	h := hasher()
-	hashsize := h.Size()
-	maxsize := hashsize * count
-	c := 2
-	for ; c < count; c *= 2 {
-	}
-	if c > 2 {
-		c /= 2
-	}
-	return &RefHasher{
-		section: 2 * hashsize,
-		span:    c * hashsize,
-		cap:     maxsize,
-		h:       h,
-	}
-}
-
-// Hash returns the BMT hash of the byte slice
-// implements the SwarmHash interface
-func (rh *RefHasher) Hash(d []byte) []byte {
-	if len(d) > rh.cap {
-		d = d[:rh.cap]
-	}
-
-	return rh.hash(d, rh.span)
-}
-
-func (rh *RefHasher) hash(d []byte, s int) []byte {
-	l := len(d)
-	left := d
-	var right []byte
-	if l > rh.section {
-		for ; s >= l; s /= 2 {
-		}
-		left = rh.hash(d[:s], s)
-		right = d[s:]
-		if l-s > rh.section/2 {
-			right = rh.hash(right, s)
-		}
-	}
-	defer rh.h.Reset()
-	rh.h.Write(left)
-	rh.h.Write(right)
-	h := rh.h.Sum(nil)
-	return h
-}

bmt/bmt_test.go

@@ -1,481 +0,0 @@
-// Copyright 2017 The go-ethereum Authors
-// This file is part of the go-ethereum library.
-//
-// The go-ethereum library is free software: you can redistribute it and/or modify
-// it under the terms of the GNU Lesser General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// The go-ethereum library is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-// GNU Lesser General Public License for more details.
-//
-// You should have received a copy of the GNU Lesser General Public License
-// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
-
-package bmt
-
-import (
-	"bytes"
-	crand "crypto/rand"
-	"fmt"
-	"hash"
-	"io"
-	"math/rand"
-	"sync"
-	"sync/atomic"
-	"testing"
-	"time"
-
-	"github.com/ethereum/go-ethereum/crypto/sha3"
-)
-
-const (
-	maxproccnt = 8
-)
-
-// TestRefHasher tests that the RefHasher computes the expected BMT hash for
-// all data lengths between 0 and 256 bytes
-func TestRefHasher(t *testing.T) {
-	hashFunc := sha3.NewKeccak256
-
-	sha3 := func(data ...[]byte) []byte {
-		h := hashFunc()
-		for _, v := range data {
-			h.Write(v)
-		}
-		return h.Sum(nil)
-	}
-
-	// the test struct is used to specify the expected BMT hash for data
-	// lengths between "from" and "to"
-	type test struct {
-		from     int64
-		to       int64
-		expected func([]byte) []byte
-	}
-
-	var tests []*test
-
-	// all lengths in [0,64] should be:
-	//
-	//   sha3(data)
-	//
-	tests = append(tests, &test{
-		from: 0,
-		to:   64,
-		expected: func(data []byte) []byte {
-			return sha3(data)
-		},
-	})
-
-	// all lengths in [65,96] should be:
-	//
-	//   sha3(
-	//     sha3(data[:64])
-	//     data[64:]
-	//   )
-	//
-	tests = append(tests, &test{
-		from: 65,
-		to:   96,
-		expected: func(data []byte) []byte {
-			return sha3(sha3(data[:64]), data[64:])
-		},
-	})
-
-	// all lengths in [97,128] should be:
-	//
-	//   sha3(
-	//     sha3(data[:64])
-	//     sha3(data[64:])
-	//   )
-	//
-	tests = append(tests, &test{
-		from: 97,
-		to:   128,
-		expected: func(data []byte) []byte {
-			return sha3(sha3(data[:64]), sha3(data[64:]))
-		},
-	})
-
-	// all lengths in [129,160] should be:
-	//
-	//   sha3(
-	//     sha3(
-	//       sha3(data[:64])
-	//       sha3(data[64:128])
-	//     )
-	//     data[128:]
-	//   )
-	//
-	tests = append(tests, &test{
-		from: 129,
-		to:   160,
-		expected: func(data []byte) []byte {
-			return sha3(sha3(sha3(data[:64]), sha3(data[64:128])), data[128:])
-		},
-	})
-
-	// all lengths in [161,192] should be:
-	//
-	//   sha3(
-	//     sha3(
-	//       sha3(data[:64])
-	//       sha3(data[64:128])
-	//     )
-	//     sha3(data[128:])
-	//   )
-	//
-	tests = append(tests, &test{
-		from: 161,
-		to:   192,
-		expected: func(data []byte) []byte {
-			return sha3(sha3(sha3(data[:64]), sha3(data[64:128])), sha3(data[128:]))
-		},
-	})
-
-	// all lengths in [193,224] should be:
-	//
-	//   sha3(
-	//     sha3(
-	//       sha3(data[:64])
-	//       sha3(data[64:128])
-	//     )
-	//     sha3(
-	//       sha3(data[128:192])
-	//       data[192:]
-	//     )
-	//   )
-	//
-	tests = append(tests, &test{
-		from: 193,
-		to:   224,
-		expected: func(data []byte) []byte {
-			return sha3(sha3(sha3(data[:64]), sha3(data[64:128])), sha3(sha3(data[128:192]), data[192:]))
-		},
-	})
-
-	// all lengths in [225,256] should be:
-	//
-	//   sha3(
-	//     sha3(
-	//       sha3(data[:64])
-	//       sha3(data[64:128])
-	//     )
-	//     sha3(
-	//       sha3(data[128:192])
-	//       sha3(data[192:])
-	//     )
-	//   )
-	//
-	tests = append(tests, &test{
-		from: 225,
-		to:   256,
-		expected: func(data []byte) []byte {
-			return sha3(sha3(sha3(data[:64]), sha3(data[64:128])), sha3(sha3(data[128:192]), sha3(data[192:])))
-		},
-	})
-
-	// run the tests
-	for _, x := range tests {
-		for length := x.from; length <= x.to; length++ {
-			t.Run(fmt.Sprintf("%d_bytes", length), func(t *testing.T) {
-				data := make([]byte, length)
-				if _, err := io.ReadFull(crand.Reader, data); err != nil && err != io.EOF {
-					t.Fatal(err)
-				}
-				expected := x.expected(data)
-				actual := NewRefHasher(hashFunc, 128).Hash(data)
-				if !bytes.Equal(actual, expected) {
-					t.Fatalf("expected %x, got %x", expected, actual)
-				}
-			})
-		}
-	}
-}
-
-func testDataReader(l int) (r io.Reader) {
-	return io.LimitReader(crand.Reader, int64(l))
-}
-
-func TestHasherCorrectness(t *testing.T) {
-	err := testHasher(testBaseHasher)
-	if err != nil {
-		t.Fatal(err)
-	}
-}
-
-func testHasher(f func(BaseHasher, []byte, int, int) error) error {
-	tdata := testDataReader(4128)
-	data := make([]byte, 4128)
-	tdata.Read(data)
-	hasher := sha3.NewKeccak256
-	size := hasher().Size()
-	counts := []int{1, 2, 3, 4, 5, 8, 16, 32, 64, 128}
-
-	var err error
-	for _, count := range counts {
-		max := count * size
-		incr := 1
-		for n := 0; n <= max+incr; n += incr {
-			err = f(hasher, data, n, count)
-			if err != nil {
-				return err
-			}
-		}
-	}
-	return nil
-}
-
-func TestHasherReuseWithoutRelease(t *testing.T) {
-	testHasherReuse(1, t)
-}
-
-func TestHasherReuseWithRelease(t *testing.T) {
-	testHasherReuse(maxproccnt, t)
-}
-
-func testHasherReuse(i int, t *testing.T) {
-	hasher := sha3.NewKeccak256
-	pool := NewTreePool(hasher, 128, i)
-	defer pool.Drain(0)
-	bmt := New(pool)
-
-	for i := 0; i < 500; i++ {
-		n := rand.Intn(4096)
-		tdata := testDataReader(n)
-		data := make([]byte, n)
-		tdata.Read(data)
-
-		err := testHasherCorrectness(bmt, hasher, data, n, 128)
-		if err != nil {
-			t.Fatal(err)
-		}
-	}
-}
-
-func TestHasherConcurrency(t *testing.T) {
-	hasher := sha3.NewKeccak256
-	pool := NewTreePool(hasher, 128, maxproccnt)
-	defer pool.Drain(0)
-	wg := sync.WaitGroup{}
-	cycles := 100
-	wg.Add(maxproccnt * cycles)
-	errc := make(chan error)
-
-	for p := 0; p < maxproccnt; p++ {
-		for i := 0; i < cycles; i++ {
-			go func() {
-				bmt := New(pool)
-				n := rand.Intn(4096)
-				tdata := testDataReader(n)
-				data := make([]byte, n)
-				tdata.Read(data)
-				err := testHasherCorrectness(bmt, hasher, data, n, 128)
-				wg.Done()
-				if err != nil {
-					errc <- err
-				}
-			}()
-		}
-	}
-	go func() {
-		wg.Wait()
-		close(errc)
-	}()
-	var err error
-	select {
-	case <-time.NewTimer(5 * time.Second).C:
-		err = fmt.Errorf("timed out")
-	case err = <-errc:
-	}
-	if err != nil {
-		t.Fatal(err)
-	}
-}
-
-func testBaseHasher(hasher BaseHasher, d []byte, n, count int) error {
-	pool := NewTreePool(hasher, count, 1)
-	defer pool.Drain(0)
-	bmt := New(pool)
-	return testHasherCorrectness(bmt, hasher, d, n, count)
-}
-
-func testHasherCorrectness(bmt hash.Hash, hasher BaseHasher, d []byte, n, count int) (err error) {
-	data := d[:n]
-	rbmt := NewRefHasher(hasher, count)
-	exp := rbmt.Hash(data)
-	timeout := time.NewTimer(time.Second)
-	c := make(chan error)
-
-	go func() {
-		bmt.Reset()
-		bmt.Write(data)
-		got := bmt.Sum(nil)
-		if !bytes.Equal(got, exp) {
-			c <- fmt.Errorf("wrong hash: expected %x, got %x", exp, got)
-		}
-		close(c)
-	}()
-	select {
-	case <-timeout.C:
-		err = fmt.Errorf("BMT hash calculation timed out")
-	case err = <-c:
-	}
-	return err
-}
-
-func BenchmarkSHA3_4k(t *testing.B)   { benchmarkSHA3(4096, t) }
-func BenchmarkSHA3_2k(t *testing.B)   { benchmarkSHA3(4096/2, t) }
-func BenchmarkSHA3_1k(t *testing.B)   { benchmarkSHA3(4096/4, t) }
-func BenchmarkSHA3_512b(t *testing.B) { benchmarkSHA3(4096/8, t) }
-func BenchmarkSHA3_256b(t *testing.B) { benchmarkSHA3(4096/16, t) }
-func BenchmarkSHA3_128b(t *testing.B) { benchmarkSHA3(4096/32, t) }
-
-func BenchmarkBMTBaseline_4k(t *testing.B)   { benchmarkBMTBaseline(4096, t) }
-func BenchmarkBMTBaseline_2k(t *testing.B)   { benchmarkBMTBaseline(4096/2, t) }
-func BenchmarkBMTBaseline_1k(t *testing.B)   { benchmarkBMTBaseline(4096/4, t) }
-func BenchmarkBMTBaseline_512b(t *testing.B) { benchmarkBMTBaseline(4096/8, t) }
-func BenchmarkBMTBaseline_256b(t *testing.B) { benchmarkBMTBaseline(4096/16, t) }
-func BenchmarkBMTBaseline_128b(t *testing.B) { benchmarkBMTBaseline(4096/32, t) }
-
-func BenchmarkRefHasher_4k(t *testing.B)   { benchmarkRefHasher(4096, t) }
-func BenchmarkRefHasher_2k(t *testing.B)   { benchmarkRefHasher(4096/2, t) }
-func BenchmarkRefHasher_1k(t *testing.B)   { benchmarkRefHasher(4096/4, t) }
-func BenchmarkRefHasher_512b(t *testing.B) { benchmarkRefHasher(4096/8, t) }
-func BenchmarkRefHasher_256b(t *testing.B) { benchmarkRefHasher(4096/16, t) }
-func BenchmarkRefHasher_128b(t *testing.B) { benchmarkRefHasher(4096/32, t) }
-
-func BenchmarkHasher_4k(t *testing.B)   { benchmarkHasher(4096, t) }
-func BenchmarkHasher_2k(t *testing.B)   { benchmarkHasher(4096/2, t) }
-func BenchmarkHasher_1k(t *testing.B)   { benchmarkHasher(4096/4, t) }
-func BenchmarkHasher_512b(t *testing.B) { benchmarkHasher(4096/8, t) }
-func BenchmarkHasher_256b(t *testing.B) { benchmarkHasher(4096/16, t) }
-func BenchmarkHasher_128b(t *testing.B) { benchmarkHasher(4096/32, t) }
-
-func BenchmarkHasherNoReuse_4k(t *testing.B)   { benchmarkHasherReuse(1, 4096, t) }
-func BenchmarkHasherNoReuse_2k(t *testing.B)   { benchmarkHasherReuse(1, 4096/2, t) }
-func BenchmarkHasherNoReuse_1k(t *testing.B)   { benchmarkHasherReuse(1, 4096/4, t) }
-func BenchmarkHasherNoReuse_512b(t *testing.B) { benchmarkHasherReuse(1, 4096/8, t) }
-func BenchmarkHasherNoReuse_256b(t *testing.B) { benchmarkHasherReuse(1, 4096/16, t) }
-func BenchmarkHasherNoReuse_128b(t *testing.B) { benchmarkHasherReuse(1, 4096/32, t) }
-
-func BenchmarkHasherReuse_4k(t *testing.B)   { benchmarkHasherReuse(16, 4096, t) }
-func BenchmarkHasherReuse_2k(t *testing.B)   { benchmarkHasherReuse(16, 4096/2, t) }
-func BenchmarkHasherReuse_1k(t *testing.B)   { benchmarkHasherReuse(16, 4096/4, t) }
-func BenchmarkHasherReuse_512b(t *testing.B) { benchmarkHasherReuse(16, 4096/8, t) }
-func BenchmarkHasherReuse_256b(t *testing.B) { benchmarkHasherReuse(16, 4096/16, t) }
-func BenchmarkHasherReuse_128b(t *testing.B) { benchmarkHasherReuse(16, 4096/32, t) }
-
-// benchmarks the minimum hashing time for a balanced (for simplicity) BMT
-// by doing count/segmentsize parallel hashings of 2*segmentsize bytes
-// doing it on n maxproccnt each reusing the base hasher
-// the premise is that this is the minimum computation needed for a BMT
-// therefore this serves as a theoretical optimum for concurrent implementations
-func benchmarkBMTBaseline(n int, t *testing.B) {
-	tdata := testDataReader(64)
-	data := make([]byte, 64)
-	tdata.Read(data)
-	hasher := sha3.NewKeccak256
-
-	t.ReportAllocs()
-	t.ResetTimer()
-	for i := 0; i < t.N; i++ {
-		count := int32((n-1)/hasher().Size() + 1)
-		wg := sync.WaitGroup{}
-		wg.Add(maxproccnt)
-		var i int32
-		for j := 0; j < maxproccnt; j++ {
-			go func() {
-				defer wg.Done()
-				h := hasher()
-				for atomic.AddInt32(&i, 1) < count {
-					h.Reset()
-					h.Write(data)
-					h.Sum(nil)
-				}
-			}()
-		}
-		wg.Wait()
-	}
-}
-
-func benchmarkHasher(n int, t *testing.B) {
-	tdata := testDataReader(n)
-	data := make([]byte, n)
-	tdata.Read(data)
-
-	size := 1
-	hasher := sha3.NewKeccak256
-	segmentCount := 128
-	pool := NewTreePool(hasher, segmentCount, size)
-	bmt := New(pool)
-
-	t.ReportAllocs()
-	t.ResetTimer()
-	for i := 0; i < t.N; i++ {
-		bmt.Reset()
-		bmt.Write(data)
-		bmt.Sum(nil)
-	}
-}
-
-func benchmarkHasherReuse(poolsize, n int, t *testing.B) {
-	tdata := testDataReader(n)
-	data := make([]byte, n)
-	tdata.Read(data)
-
-	hasher := sha3.NewKeccak256
-	segmentCount := 128
-	pool := NewTreePool(hasher, segmentCount, poolsize)
-	cycles := 200
-
-	t.ReportAllocs()
-	t.ResetTimer()
-	for i := 0; i < t.N; i++ {
-		wg := sync.WaitGroup{}
-		wg.Add(cycles)
-		for j := 0; j < cycles; j++ {
-			bmt := New(pool)
-			go func() {
-				defer wg.Done()
-				bmt.Reset()
-				bmt.Write(data)
-				bmt.Sum(nil)
-			}()
-		}
-		wg.Wait()
-	}
-}
-
-func benchmarkSHA3(n int, t *testing.B) {
-	data := make([]byte, n)
-	tdata := testDataReader(n)
-	tdata.Read(data)
-	hasher := sha3.NewKeccak256
-	h := hasher()
-
-	t.ReportAllocs()
-	t.ResetTimer()
-	for i := 0; i < t.N; i++ {
-		h.Reset()
-		h.Write(data)
-		h.Sum(nil)
-	}
-}
-
-func benchmarkRefHasher(n int, t *testing.B) {
-	data := make([]byte, n)
-	tdata := testDataReader(n)
-	tdata.Read(data)
-	hasher := sha3.NewKeccak256
-	rbmt := NewRefHasher(hasher, 128)
-
-	t.ReportAllocs()
-	t.ResetTimer()
-	for i := 0; i < t.N; i++ {
-		rbmt.Hash(data)
-	}
-}

build/goimports.sh

@@ -1,18 +1,18 @@
-#!/usr/bin/env bash
+#!/bin/sh
 
 find_files() {
-  find . -not \( \
+  find . ! \( \
       \( \
-        -wholename '.github' \
+        -path '.github' \
-        -o -wholename './build/_workspace' \
+        -o -path './build/_workspace' \
-        -o -wholename './build/bin' \
+        -o -path './build/bin' \
-        -o -wholename './crypto/bn256' \
+        -o -path './crypto/bn256' \
-        -o -wholename '*/vendor/*' \
+        -o -path '*/vendor/*' \
       \) -prune \
     \) -name '*.go'
 }
 
-GOFMT="gofmt -s -w";
+GOFMT="gofmt -s -w"
-GOIMPORTS="goimports -w";
+GOIMPORTS="goimports -w"
-find_files | xargs $GOFMT;
+find_files | xargs $GOFMT
-find_files | xargs $GOIMPORTS;
+find_files | xargs $GOIMPORTS

cmd/faucet/faucet.go

@@ -77,9 +77,6 @@ var (
 	accJSONFlag = flag.String("account.json", "", "Key json file to fund user requests with")
 	accPassFlag = flag.String("account.pass", "", "Decryption password to access faucet funds")
 
-	githubUser  = flag.String("github.user", "", "GitHub user to authenticate with for Gist access")
-	githubToken = flag.String("github.token", "", "GitHub personal token to access Gists with")
-
 	captchaToken  = flag.String("captcha.token", "", "Recaptcha site key to authenticate client side")
 	captchaSecret = flag.String("captcha.secret", "", "Recaptcha secret key to authenticate server side")
 
@@ -638,59 +635,6 @@ func sendSuccess(conn *websocket.Conn, msg string) error {
 	return send(conn, map[string]string{"success": msg}, time.Second)
 }
 
-// authGitHub tries to authenticate a faucet request using GitHub gists, returning
-// the username, avatar URL and Ethereum address to fund on success.
-func authGitHub(url string) (string, string, common.Address, error) {
-	// Retrieve the gist from the GitHub Gist APIs
-	parts := strings.Split(url, "/")
-	req, _ := http.NewRequest("GET", "https://api.github.com/gists/"+parts[len(parts)-1], nil)
-	if *githubUser != "" {
-		req.SetBasicAuth(*githubUser, *githubToken)
-	}
-	res, err := http.DefaultClient.Do(req)
-	if err != nil {
-		return "", "", common.Address{}, err
-	}
-	var gist struct {
-		Owner struct {
-			Login string `json:"login"`
-		} `json:"owner"`
-		Files map[string]struct {
-			Content string `json:"content"`
-		} `json:"files"`
-	}
-	err = json.NewDecoder(res.Body).Decode(&gist)
-	res.Body.Close()
-	if err != nil {
-		return "", "", common.Address{}, err
-	}
-	if gist.Owner.Login == "" {
-		return "", "", common.Address{}, errors.New("Anonymous Gists not allowed")
-	}
-	// Iterate over all the files and look for Ethereum addresses
-	var address common.Address
-	for _, file := range gist.Files {
-		content := strings.TrimSpace(file.Content)
-		if len(content) == 2+common.AddressLength*2 {
-			address = common.HexToAddress(content)
-		}
-	}
-	if address == (common.Address{}) {
-		return "", "", common.Address{}, errors.New("No Ethereum address found to fund")
-	}
-	// Validate the user's existence since the API is unhelpful here
-	if res, err = http.Head("https://github.com/" + gist.Owner.Login); err != nil {
-		return "", "", common.Address{}, err
-	}
-	res.Body.Close()
-
-	if res.StatusCode != 200 {
-		return "", "", common.Address{}, errors.New("Invalid user... boom!")
-	}
-	// Everything passed validation, return the gathered infos
-	return gist.Owner.Login + "@github", fmt.Sprintf("https://github.com/%s.png?size=64", gist.Owner.Login), address, nil
-}
-
 // authTwitter tries to authenticate a faucet request using Twitter posts, returning
 // the username, avatar URL and Ethereum address to fund on success.
 func authTwitter(url string) (string, string, common.Address, error) {

cmd/geth/genesis_test.go

@@ -77,7 +77,7 @@ var customGenesisTests = []struct {
 				"homesteadBlock" : 314,
 				"daoForkBlock"   : 141,
 				"daoForkSupport" : true
-			},
+			}
 		}`,
 		query:  "eth.getBlock(0).nonce",
 		result: "0x0000000000000042",

cmd/geth/main.go

@@ -144,6 +144,15 @@ var (
 		utils.WhisperMaxMessageSizeFlag,
 		utils.WhisperMinPOWFlag,
 	}
+
+	metricsFlags = []cli.Flag{
+		utils.MetricsEnableInfluxDBFlag,
+		utils.MetricsInfluxDBEndpointFlag,
+		utils.MetricsInfluxDBDatabaseFlag,
+		utils.MetricsInfluxDBUsernameFlag,
+		utils.MetricsInfluxDBPasswordFlag,
+		utils.MetricsInfluxDBHostTagFlag,
+	}
 )
 
 func init() {
@@ -186,13 +195,14 @@ func init() {
 	app.Flags = append(app.Flags, consoleFlags...)
 	app.Flags = append(app.Flags, debug.Flags...)
 	app.Flags = append(app.Flags, whisperFlags...)
+	app.Flags = append(app.Flags, metricsFlags...)
 
 	app.Before = func(ctx *cli.Context) error {
 		runtime.GOMAXPROCS(runtime.NumCPU())
 		if err := debug.Setup(ctx); err != nil {
 			return err
 		}
-		// Cap the cache allowance and tune the garbage colelctor
+		// Cap the cache allowance and tune the garbage collector
 		var mem gosigar.Mem
 		if err := mem.Get(); err == nil {
 			allowance := int(mem.Total / 1024 / 1024 / 3)
@@ -208,6 +218,9 @@ func init() {
 		log.Debug("Sanitizing Go's GC trigger", "percent", int(gogc))
 		godebug.SetGCPercent(int(gogc))
 
+		// Start metrics export if enabled
+		utils.SetupMetrics(ctx)
+
 		// Start system runtime metrics collection
 		go metrics.CollectProcessMetrics(3 * time.Second)
 

cmd/geth/usage.go

@@ -83,7 +83,8 @@ var AppHelpFlagGroups = []flagGroup{
 			utils.LightKDFFlag,
 		},
 	},
-	{Name: "DEVELOPER CHAIN",
+	{
+		Name: "DEVELOPER CHAIN",
 		Flags: []cli.Flag{
 			utils.DeveloperFlag,
 			utils.DeveloperPeriodFlag,
@@ -206,11 +207,22 @@ var AppHelpFlagGroups = []flagGroup{
 	{
 		Name: "LOGGING AND DEBUGGING",
 		Flags: append([]cli.Flag{
-			utils.MetricsEnabledFlag,
 			utils.FakePoWFlag,
 			utils.NoCompactionFlag,
 		}, debug.Flags...),
 	},
+	{
+		Name: "METRICS AND STATS",
+		Flags: []cli.Flag{
+			utils.MetricsEnabledFlag,
+			utils.MetricsEnableInfluxDBFlag,
+			utils.MetricsInfluxDBEndpointFlag,
+			utils.MetricsInfluxDBDatabaseFlag,
+			utils.MetricsInfluxDBUsernameFlag,
+			utils.MetricsInfluxDBPasswordFlag,
+			utils.MetricsInfluxDBHostTagFlag,
+		},
+	},
 	{
 		Name:  "WHISPER (EXPERIMENTAL)",
 		Flags: whisperFlags,

cmd/p2psim/main.go

@@ -180,7 +180,10 @@ func main() {
 			},
 		},
 	}
-	app.Run(os.Args)
+	if err := app.Run(os.Args); err != nil {
+		fmt.Fprintln(os.Stderr, err)
+		os.Exit(1)
+	}
 }
 
 func showNetwork(ctx *cli.Context) error {
@@ -275,9 +278,8 @@ func createNode(ctx *cli.Context) error {
 	if len(ctx.Args()) != 0 {
 		return cli.ShowCommandHelp(ctx, ctx.Command.Name)
 	}
-	config := &adapters.NodeConfig{
+	config := adapters.RandomNodeConfig()
-		Name: ctx.String("name"),
+	config.Name = ctx.String("name")
-	}
 	if key := ctx.String("key"); key != "" {
 		privKey, err := crypto.HexToECDSA(key)
 		if err != nil {

cmd/puppeth/wizard_netstats.go

@@ -276,13 +276,3 @@ func (stats serverStats) render() {
 	}
 	table.Render()
 }
-
-// protips contains a collection of network infos to report pro-tips
-// based on.
-type protips struct {
-	genesis   string
-	network   int64
-	bootFull  []string
-	bootLight []string
-	ethstats  string
-}

cmd/swarm/config.go

@@ -24,6 +24,7 @@ import (
 	"reflect"
 	"strconv"
 	"strings"
+	"time"
 	"unicode"
 
 	cli "gopkg.in/urfave/cli.v1"
@@ -37,6 +38,8 @@ import (
 	bzzapi "github.com/ethereum/go-ethereum/swarm/api"
 )
 
+const SWARM_VERSION = "0.3"
+
 var (
 	//flag definition for the dumpconfig command
 	DumpConfigCommand = cli.Command{
@@ -65,11 +68,17 @@ const (
 	SWARM_ENV_NETWORK_ID           = "SWARM_NETWORK_ID"
 	SWARM_ENV_SWAP_ENABLE          = "SWARM_SWAP_ENABLE"
 	SWARM_ENV_SWAP_API             = "SWARM_SWAP_API"
-	SWARM_ENV_SYNC_ENABLE     = "SWARM_SYNC_ENABLE"
+	SWARM_ENV_SYNC_DISABLE         = "SWARM_SYNC_DISABLE"
+	SWARM_ENV_SYNC_UPDATE_DELAY    = "SWARM_ENV_SYNC_UPDATE_DELAY"
+	SWARM_ENV_DELIVERY_SKIP_CHECK  = "SWARM_DELIVERY_SKIP_CHECK"
 	SWARM_ENV_ENS_API              = "SWARM_ENS_API"
 	SWARM_ENV_ENS_ADDR             = "SWARM_ENS_ADDR"
 	SWARM_ENV_CORS                 = "SWARM_CORS"
 	SWARM_ENV_BOOTNODES            = "SWARM_BOOTNODES"
+	SWARM_ENV_PSS_ENABLE           = "SWARM_PSS_ENABLE"
+	SWARM_ENV_STORE_PATH           = "SWARM_STORE_PATH"
+	SWARM_ENV_STORE_CAPACITY       = "SWARM_STORE_CAPACITY"
+	SWARM_ENV_STORE_CACHE_CAPACITY = "SWARM_STORE_CACHE_CAPACITY"
 	GETH_ENV_DATADIR               = "GETH_DATADIR"
 )
 
@@ -92,10 +101,8 @@ var tomlSettings = toml.Config{
 
 //before booting the swarm node, build the configuration
 func buildConfig(ctx *cli.Context) (config *bzzapi.Config, err error) {
-	//check for deprecated flags
-	checkDeprecated(ctx)
 	//start by creating a default config
-	config = bzzapi.NewDefaultConfig()
+	config = bzzapi.NewConfig()
 	//first load settings from config file (if provided)
 	config, err = configFileOverride(config, ctx)
 	if err != nil {
@@ -168,7 +175,7 @@ func cmdLineOverride(currentConfig *bzzapi.Config, ctx *cli.Context) *bzzapi.Con
 
 	if networkid := ctx.GlobalString(SwarmNetworkIdFlag.Name); networkid != "" {
 		if id, _ := strconv.Atoi(networkid); id != 0 {
-			currentConfig.NetworkId = uint64(id)
+			currentConfig.NetworkID = uint64(id)
 		}
 	}
 
@@ -191,12 +198,20 @@ func cmdLineOverride(currentConfig *bzzapi.Config, ctx *cli.Context) *bzzapi.Con
 		currentConfig.SwapEnabled = true
 	}
 
-	if ctx.GlobalIsSet(SwarmSyncEnabledFlag.Name) {
+	if ctx.GlobalIsSet(SwarmSyncDisabledFlag.Name) {
-		currentConfig.SyncEnabled = true
+		currentConfig.SyncEnabled = false
 	}
 
-	currentConfig.SwapApi = ctx.GlobalString(SwarmSwapAPIFlag.Name)
+	if d := ctx.GlobalDuration(SwarmSyncUpdateDelay.Name); d > 0 {
-	if currentConfig.SwapEnabled && currentConfig.SwapApi == "" {
+		currentConfig.SyncUpdateDelay = d
+	}
+
+	if ctx.GlobalIsSet(SwarmDeliverySkipCheckFlag.Name) {
+		currentConfig.DeliverySkipCheck = true
+	}
+
+	currentConfig.SwapAPI = ctx.GlobalString(SwarmSwapAPIFlag.Name)
+	if currentConfig.SwapEnabled && currentConfig.SwapAPI == "" {
 		utils.Fatalf(SWARM_ERR_SWAP_SET_NO_API)
 	}
 
@@ -209,10 +224,6 @@ func cmdLineOverride(currentConfig *bzzapi.Config, ctx *cli.Context) *bzzapi.Con
 		currentConfig.EnsAPIs = ensAPIs
 	}
 
-	if ensaddr := ctx.GlobalString(DeprecatedEnsAddrFlag.Name); ensaddr != "" {
-		currentConfig.EnsRoot = common.HexToAddress(ensaddr)
-	}
-
 	if cors := ctx.GlobalString(CorsStringFlag.Name); cors != "" {
 		currentConfig.Cors = cors
 	}
@@ -221,6 +232,18 @@ func cmdLineOverride(currentConfig *bzzapi.Config, ctx *cli.Context) *bzzapi.Con
 		currentConfig.BootNodes = ctx.GlobalString(utils.BootnodesFlag.Name)
 	}
 
+	if storePath := ctx.GlobalString(SwarmStorePath.Name); storePath != "" {
+		currentConfig.LocalStoreParams.ChunkDbPath = storePath
+	}
+
+	if storeCapacity := ctx.GlobalUint64(SwarmStoreCapacity.Name); storeCapacity != 0 {
+		currentConfig.LocalStoreParams.DbCapacity = storeCapacity
+	}
+
+	if storeCacheCapacity := ctx.GlobalUint(SwarmStoreCacheCapacity.Name); storeCacheCapacity != 0 {
+		currentConfig.LocalStoreParams.CacheCapacity = storeCacheCapacity
+	}
+
 	return currentConfig
 
 }
@@ -239,7 +262,7 @@ func envVarsOverride(currentConfig *bzzapi.Config) (config *bzzapi.Config) {
 
 	if networkid := os.Getenv(SWARM_ENV_NETWORK_ID); networkid != "" {
 		if id, _ := strconv.Atoi(networkid); id != 0 {
-			currentConfig.NetworkId = uint64(id)
+			currentConfig.NetworkID = uint64(id)
 		}
 	}
 
@@ -262,17 +285,29 @@ func envVarsOverride(currentConfig *bzzapi.Config) (config *bzzapi.Config) {
 		}
 	}
 
-	if syncenable := os.Getenv(SWARM_ENV_SYNC_ENABLE); syncenable != "" {
+	if syncdisable := os.Getenv(SWARM_ENV_SYNC_DISABLE); syncdisable != "" {
-		if sync, err := strconv.ParseBool(syncenable); err != nil {
+		if sync, err := strconv.ParseBool(syncdisable); err != nil {
-			currentConfig.SyncEnabled = sync
+			currentConfig.SyncEnabled = !sync
+		}
+	}
+
+	if v := os.Getenv(SWARM_ENV_DELIVERY_SKIP_CHECK); v != "" {
+		if skipCheck, err := strconv.ParseBool(v); err != nil {
+			currentConfig.DeliverySkipCheck = skipCheck
+		}
+	}
+
+	if v := os.Getenv(SWARM_ENV_SYNC_UPDATE_DELAY); v != "" {
+		if d, err := time.ParseDuration(v); err != nil {
+			currentConfig.SyncUpdateDelay = d
 		}
 	}
 
 	if swapapi := os.Getenv(SWARM_ENV_SWAP_API); swapapi != "" {
-		currentConfig.SwapApi = swapapi
+		currentConfig.SwapAPI = swapapi
 	}
 
-	if currentConfig.SwapEnabled && currentConfig.SwapApi == "" {
+	if currentConfig.SwapEnabled && currentConfig.SwapAPI == "" {
 		utils.Fatalf(SWARM_ERR_SWAP_SET_NO_API)
 	}
 
@@ -312,18 +347,6 @@ func dumpConfig(ctx *cli.Context) error {
 	return nil
 }
 
-//deprecated flags checked here
-func checkDeprecated(ctx *cli.Context) {
-	// exit if the deprecated --ethapi flag is set
-	if ctx.GlobalString(DeprecatedEthAPIFlag.Name) != "" {
-		utils.Fatalf("--ethapi is no longer a valid command line flag, please use --ens-api and/or --swap-api.")
-	}
-	// warn if --ens-api flag is set
-	if ctx.GlobalString(DeprecatedEnsAddrFlag.Name) != "" {
-		log.Warn("--ens-addr is no longer a valid command line flag, please use --ens-api to specify contract address.")
-	}
-}
-
 //validate configuration parameters
 func validateConfig(cfg *bzzapi.Config) (err error) {
 	for _, ensAPI := range cfg.EnsAPIs {

cmd/swarm/config_test.go

@@ -34,7 +34,7 @@ import (
 
 func TestDumpConfig(t *testing.T) {
 	swarm := runSwarm(t, "dumpconfig")
-	defaultConf := api.NewDefaultConfig()
+	defaultConf := api.NewConfig()
 	out, err := tomlSettings.Marshal(&defaultConf)
 	if err != nil {
 		t.Fatal(err)
@@ -43,7 +43,7 @@ func TestDumpConfig(t *testing.T) {
 	swarm.ExpectExit()
 }
 
-func TestFailsSwapEnabledNoSwapApi(t *testing.T) {
+func TestConfigFailsSwapEnabledNoSwapApi(t *testing.T) {
 	flags := []string{
 		fmt.Sprintf("--%s", SwarmNetworkIdFlag.Name), "42",
 		fmt.Sprintf("--%s", SwarmPortFlag.Name), "54545",
@@ -55,7 +55,7 @@ func TestFailsSwapEnabledNoSwapApi(t *testing.T) {
 	swarm.ExpectExit()
 }
 
-func TestFailsNoBzzAccount(t *testing.T) {
+func TestConfigFailsNoBzzAccount(t *testing.T) {
 	flags := []string{
 		fmt.Sprintf("--%s", SwarmNetworkIdFlag.Name), "42",
 		fmt.Sprintf("--%s", SwarmPortFlag.Name), "54545",
@@ -66,7 +66,7 @@ func TestFailsNoBzzAccount(t *testing.T) {
 	swarm.ExpectExit()
 }
 
-func TestCmdLineOverrides(t *testing.T) {
+func TestConfigCmdLineOverrides(t *testing.T) {
 	dir, err := ioutil.TempDir("", "bzztest")
 	if err != nil {
 		t.Fatal(err)
@@ -85,9 +85,10 @@ func TestCmdLineOverrides(t *testing.T) {
 	flags := []string{
 		fmt.Sprintf("--%s", SwarmNetworkIdFlag.Name), "42",
 		fmt.Sprintf("--%s", SwarmPortFlag.Name), httpPort,
-		fmt.Sprintf("--%s", SwarmSyncEnabledFlag.Name),
+		fmt.Sprintf("--%s", SwarmSyncDisabledFlag.Name),
 		fmt.Sprintf("--%s", CorsStringFlag.Name), "*",
 		fmt.Sprintf("--%s", SwarmAccountFlag.Name), account.Address.String(),
+		fmt.Sprintf("--%s", SwarmDeliverySkipCheckFlag.Name),
 		fmt.Sprintf("--%s", EnsAPIFlag.Name), "",
 		"--datadir", dir,
 		"--ipcpath", conf.IPCPath,
@@ -120,12 +121,16 @@ func TestCmdLineOverrides(t *testing.T) {
 		t.Fatalf("Expected port to be %s, got %s", httpPort, info.Port)
 	}
 
-	if info.NetworkId != 42 {
+	if info.NetworkID != 42 {
-		t.Fatalf("Expected network ID to be %d, got %d", 42, info.NetworkId)
+		t.Fatalf("Expected network ID to be %d, got %d", 42, info.NetworkID)
 	}
 
-	if !info.SyncEnabled {
+	if info.SyncEnabled {
-		t.Fatal("Expected Sync to be enabled, but is false")
+		t.Fatal("Expected Sync to be disabled, but is true")
+	}
+
+	if !info.DeliverySkipCheck {
+		t.Fatal("Expected DeliverySkipCheck to be enabled, but it is not")
 	}
 
 	if info.Cors != "*" {
@@ -135,7 +140,7 @@ func TestCmdLineOverrides(t *testing.T) {
 	node.Shutdown()
 }
 
-func TestFileOverrides(t *testing.T) {
+func TestConfigFileOverrides(t *testing.T) {
 
 	// assign ports
 	httpPort, err := assignTCPPort()
@@ -145,16 +150,16 @@ func TestFileOverrides(t *testing.T) {
 
 	//create a config file
 	//first, create a default conf
-	defaultConf := api.NewDefaultConfig()
+	defaultConf := api.NewConfig()
 	//change some values in order to test if they have been loaded
-	defaultConf.SyncEnabled = true
+	defaultConf.SyncEnabled = false
-	defaultConf.NetworkId = 54
+	defaultConf.DeliverySkipCheck = true
+	defaultConf.NetworkID = 54
 	defaultConf.Port = httpPort
-	defaultConf.StoreParams.DbCapacity = 9000000
+	defaultConf.DbCapacity = 9000000
-	defaultConf.ChunkerParams.Branches = 64
+	defaultConf.HiveParams.KeepAliveInterval = 6000000000
-	defaultConf.HiveParams.CallInterval = 6000000000
 	defaultConf.Swap.Params.Strategy.AutoCashInterval = 600 * time.Second
-	defaultConf.SyncParams.KeyBufferSize = 512
+	//defaultConf.SyncParams.KeyBufferSize = 512
 	//create a TOML string
 	out, err := tomlSettings.Marshal(&defaultConf)
 	if err != nil {
@@ -215,38 +220,38 @@ func TestFileOverrides(t *testing.T) {
 		t.Fatalf("Expected port to be %s, got %s", httpPort, info.Port)
 	}
 
-	if info.NetworkId != 54 {
+	if info.NetworkID != 54 {
-		t.Fatalf("Expected network ID to be %d, got %d", 54, info.NetworkId)
+		t.Fatalf("Expected network ID to be %d, got %d", 54, info.NetworkID)
 	}
 
-	if !info.SyncEnabled {
+	if info.SyncEnabled {
-		t.Fatal("Expected Sync to be enabled, but is false")
+		t.Fatal("Expected Sync to be disabled, but is true")
 	}
 
-	if info.StoreParams.DbCapacity != 9000000 {
+	if !info.DeliverySkipCheck {
-		t.Fatalf("Expected network ID to be %d, got %d", 54, info.NetworkId)
+		t.Fatal("Expected DeliverySkipCheck to be enabled, but it is not")
 	}
 
-	if info.ChunkerParams.Branches != 64 {
+	if info.DbCapacity != 9000000 {
-		t.Fatalf("Expected chunker params branches to be %d, got %d", 64, info.ChunkerParams.Branches)
+		t.Fatalf("Expected network ID to be %d, got %d", 54, info.NetworkID)
 	}
 
-	if info.HiveParams.CallInterval != 6000000000 {
+	if info.HiveParams.KeepAliveInterval != 6000000000 {
-		t.Fatalf("Expected HiveParams CallInterval to be %d, got %d", uint64(6000000000), uint64(info.HiveParams.CallInterval))
+		t.Fatalf("Expected HiveParams KeepAliveInterval to be %d, got %d", uint64(6000000000), uint64(info.HiveParams.KeepAliveInterval))
 	}
 
 	if info.Swap.Params.Strategy.AutoCashInterval != 600*time.Second {
 		t.Fatalf("Expected SwapParams AutoCashInterval to be %ds, got %d", 600, info.Swap.Params.Strategy.AutoCashInterval)
 	}
 
-	if info.SyncParams.KeyBufferSize != 512 {
+	//	if info.SyncParams.KeyBufferSize != 512 {
-		t.Fatalf("Expected info.SyncParams.KeyBufferSize to be %d, got %d", 512, info.SyncParams.KeyBufferSize)
+	//		t.Fatalf("Expected info.SyncParams.KeyBufferSize to be %d, got %d", 512, info.SyncParams.KeyBufferSize)
-	}
+	//	}
 
 	node.Shutdown()
 }
 
-func TestEnvVars(t *testing.T) {
+func TestConfigEnvVars(t *testing.T) {
 	// assign ports
 	httpPort, err := assignTCPPort()
 	if err != nil {
@@ -257,7 +262,8 @@ func TestEnvVars(t *testing.T) {
 	envVars = append(envVars, fmt.Sprintf("%s=%s", SwarmPortFlag.EnvVar, httpPort))
 	envVars = append(envVars, fmt.Sprintf("%s=%s", SwarmNetworkIdFlag.EnvVar, "999"))
 	envVars = append(envVars, fmt.Sprintf("%s=%s", CorsStringFlag.EnvVar, "*"))
-	envVars = append(envVars, fmt.Sprintf("%s=%s", SwarmSyncEnabledFlag.EnvVar, "true"))
+	envVars = append(envVars, fmt.Sprintf("%s=%s", SwarmSyncDisabledFlag.EnvVar, "true"))
+	envVars = append(envVars, fmt.Sprintf("%s=%s", SwarmDeliverySkipCheckFlag.EnvVar, "true"))
 
 	dir, err := ioutil.TempDir("", "bzztest")
 	if err != nil {
@@ -326,23 +332,27 @@ func TestEnvVars(t *testing.T) {
 		t.Fatalf("Expected port to be %s, got %s", httpPort, info.Port)
 	}
 
-	if info.NetworkId != 999 {
+	if info.NetworkID != 999 {
-		t.Fatalf("Expected network ID to be %d, got %d", 999, info.NetworkId)
+		t.Fatalf("Expected network ID to be %d, got %d", 999, info.NetworkID)
 	}
 
 	if info.Cors != "*" {
 		t.Fatalf("Expected Cors flag to be set to %s, got %s", "*", info.Cors)
 	}
 
-	if !info.SyncEnabled {
+	if info.SyncEnabled {
-		t.Fatal("Expected Sync to be enabled, but is false")
+		t.Fatal("Expected Sync to be disabled, but is true")
+	}
+
+	if !info.DeliverySkipCheck {
+		t.Fatal("Expected DeliverySkipCheck to be enabled, but it is not")
 	}
 
 	node.Shutdown()
 	cmd.Process.Kill()
 }
 
-func TestCmdLineOverridesFile(t *testing.T) {
+func TestConfigCmdLineOverridesFile(t *testing.T) {
 
 	// assign ports
 	httpPort, err := assignTCPPort()
@@ -352,26 +362,27 @@ func TestCmdLineOverridesFile(t *testing.T) {
 
 	//create a config file
 	//first, create a default conf
-	defaultConf := api.NewDefaultConfig()
+	defaultConf := api.NewConfig()
 	//change some values in order to test if they have been loaded
-	defaultConf.SyncEnabled = false
+	defaultConf.SyncEnabled = true
-	defaultConf.NetworkId = 54
+	defaultConf.NetworkID = 54
 	defaultConf.Port = "8588"
-	defaultConf.StoreParams.DbCapacity = 9000000
+	defaultConf.DbCapacity = 9000000
-	defaultConf.ChunkerParams.Branches = 64
+	defaultConf.HiveParams.KeepAliveInterval = 6000000000
-	defaultConf.HiveParams.CallInterval = 6000000000
 	defaultConf.Swap.Params.Strategy.AutoCashInterval = 600 * time.Second
-	defaultConf.SyncParams.KeyBufferSize = 512
+	//defaultConf.SyncParams.KeyBufferSize = 512
 	//create a TOML file
 	out, err := tomlSettings.Marshal(&defaultConf)
 	if err != nil {
 		t.Fatalf("Error creating TOML file in TestFileOverride: %v", err)
 	}
 	//write file
-	f, err := ioutil.TempFile("", "testconfig.toml")
+	fname := "testconfig.toml"
+	f, err := ioutil.TempFile("", fname)
 	if err != nil {
 		t.Fatalf("Error writing TOML file in TestFileOverride: %v", err)
 	}
+	defer os.Remove(fname)
 	//write file
 	_, err = f.WriteString(string(out))
 	if err != nil {
@@ -392,7 +403,7 @@ func TestCmdLineOverridesFile(t *testing.T) {
 	flags := []string{
 		fmt.Sprintf("--%s", SwarmNetworkIdFlag.Name), "77",
 		fmt.Sprintf("--%s", SwarmPortFlag.Name), httpPort,
-		fmt.Sprintf("--%s", SwarmSyncEnabledFlag.Name),
+		fmt.Sprintf("--%s", SwarmSyncDisabledFlag.Name),
 		fmt.Sprintf("--%s", SwarmTomlConfigPathFlag.Name), f.Name(),
 		fmt.Sprintf("--%s", SwarmAccountFlag.Name), account.Address.String(),
 		"--ens-api", "",
@@ -427,33 +438,29 @@ func TestCmdLineOverridesFile(t *testing.T) {
 		t.Fatalf("Expected port to be %s, got %s", httpPort, info.Port)
 	}
 
-	if info.NetworkId != expectNetworkId {
+	if info.NetworkID != expectNetworkId {
-		t.Fatalf("Expected network ID to be %d, got %d", expectNetworkId, info.NetworkId)
+		t.Fatalf("Expected network ID to be %d, got %d", expectNetworkId, info.NetworkID)
 	}
 
-	if !info.SyncEnabled {
+	if info.SyncEnabled {
-		t.Fatal("Expected Sync to be enabled, but is false")
+		t.Fatal("Expected Sync to be disabled, but is true")
 	}
 
-	if info.StoreParams.DbCapacity != 9000000 {
+	if info.LocalStoreParams.DbCapacity != 9000000 {
-		t.Fatalf("Expected network ID to be %d, got %d", 54, info.NetworkId)
+		t.Fatalf("Expected Capacity to be %d, got %d", 9000000, info.LocalStoreParams.DbCapacity)
 	}
 
-	if info.ChunkerParams.Branches != 64 {
+	if info.HiveParams.KeepAliveInterval != 6000000000 {
-		t.Fatalf("Expected chunker params branches to be %d, got %d", 64, info.ChunkerParams.Branches)
+		t.Fatalf("Expected HiveParams KeepAliveInterval to be %d, got %d", uint64(6000000000), uint64(info.HiveParams.KeepAliveInterval))
-	}
-
-	if info.HiveParams.CallInterval != 6000000000 {
-		t.Fatalf("Expected HiveParams CallInterval to be %d, got %d", uint64(6000000000), uint64(info.HiveParams.CallInterval))
 	}
 
 	if info.Swap.Params.Strategy.AutoCashInterval != 600*time.Second {
 		t.Fatalf("Expected SwapParams AutoCashInterval to be %ds, got %d", 600, info.Swap.Params.Strategy.AutoCashInterval)
 	}
 
-	if info.SyncParams.KeyBufferSize != 512 {
+	//	if info.SyncParams.KeyBufferSize != 512 {
-		t.Fatalf("Expected info.SyncParams.KeyBufferSize to be %d, got %d", 512, info.SyncParams.KeyBufferSize)
+	//		t.Fatalf("Expected info.SyncParams.KeyBufferSize to be %d, got %d", 512, info.SyncParams.KeyBufferSize)
-	}
+	//	}
 
 	node.Shutdown()
 }

cmd/swarm/db.go

@@ -23,6 +23,7 @@ import (
 	"path/filepath"
 
 	"github.com/ethereum/go-ethereum/cmd/utils"
+	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/log"
 	"github.com/ethereum/go-ethereum/swarm/storage"
 	"gopkg.in/urfave/cli.v1"
@@ -30,11 +31,11 @@ import (
 
 func dbExport(ctx *cli.Context) {
 	args := ctx.Args()
-	if len(args) != 2 {
+	if len(args) != 3 {
-		utils.Fatalf("invalid arguments, please specify both <chunkdb> (path to a local chunk database) and <file> (path to write the tar archive to, - for stdout)")
+		utils.Fatalf("invalid arguments, please specify both <chunkdb> (path to a local chunk database), <file> (path to write the tar archive to, - for stdout) and the base key")
 	}
 
-	store, err := openDbStore(args[0])
+	store, err := openLDBStore(args[0], common.Hex2Bytes(args[2]))
 	if err != nil {
 		utils.Fatalf("error opening local chunk database: %s", err)
 	}
@@ -62,11 +63,11 @@ func dbExport(ctx *cli.Context) {
 
 func dbImport(ctx *cli.Context) {
 	args := ctx.Args()
-	if len(args) != 2 {
+	if len(args) != 3 {
-		utils.Fatalf("invalid arguments, please specify both <chunkdb> (path to a local chunk database) and <file> (path to read the tar archive from, - for stdin)")
+		utils.Fatalf("invalid arguments, please specify both <chunkdb> (path to a local chunk database), <file> (path to read the tar archive from, - for stdin) and the base key")
 	}
 
-	store, err := openDbStore(args[0])
+	store, err := openLDBStore(args[0], common.Hex2Bytes(args[2]))
 	if err != nil {
 		utils.Fatalf("error opening local chunk database: %s", err)
 	}
@@ -94,11 +95,11 @@ func dbImport(ctx *cli.Context) {
 
 func dbClean(ctx *cli.Context) {
 	args := ctx.Args()
-	if len(args) != 1 {
+	if len(args) != 2 {
-		utils.Fatalf("invalid arguments, please specify <chunkdb> (path to a local chunk database)")
+		utils.Fatalf("invalid arguments, please specify <chunkdb> (path to a local chunk database) and the base key")
 	}
 
-	store, err := openDbStore(args[0])
+	store, err := openLDBStore(args[0], common.Hex2Bytes(args[1]))
 	if err != nil {
 		utils.Fatalf("error opening local chunk database: %s", err)
 	}
@@ -107,10 +108,13 @@ func dbClean(ctx *cli.Context) {
 	store.Cleanup()
 }
 
-func openDbStore(path string) (*storage.DbStore, error) {
+func openLDBStore(path string, basekey []byte) (*storage.LDBStore, error) {
 	if _, err := os.Stat(filepath.Join(path, "CURRENT")); err != nil {
 		return nil, fmt.Errorf("invalid chunkdb path: %s", err)
 	}
-	hash := storage.MakeHashFunc("SHA3")
+
-	return storage.NewDbStore(path, hash, 10000000, 0)
+	storeparams := storage.NewDefaultStoreParams()
+	ldbparams := storage.NewLDBStoreParams(storeparams, path)
+	ldbparams.BaseKey = basekey
+	return storage.NewLDBStore(ldbparams)
 }

cmd/swarm/download.go

@@ -0,0 +1,85 @@
+// Copyright 2018 The go-ethereum Authors
+// This file is part of go-ethereum.
+//
+// go-ethereum is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// go-ethereum is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with go-ethereum. If not, see <http://www.gnu.org/licenses/>.
+package main
+
+import (
+	"fmt"
+	"os"
+	"path/filepath"
+	"strings"
+
+	"github.com/ethereum/go-ethereum/cmd/utils"
+	"github.com/ethereum/go-ethereum/log"
+	"github.com/ethereum/go-ethereum/swarm/api"
+	swarm "github.com/ethereum/go-ethereum/swarm/api/client"
+	"gopkg.in/urfave/cli.v1"
+)
+
+func download(ctx *cli.Context) {
+	log.Debug("downloading content using swarm down")
+	args := ctx.Args()
+	dest := "."
+
+	switch len(args) {
+	case 0:
+		utils.Fatalf("Usage: swarm down [options] <bzz locator> [<destination path>]")
+	case 1:
+		log.Trace(fmt.Sprintf("swarm down: no destination path - assuming working dir"))
+	default:
+		log.Trace(fmt.Sprintf("destination path arg: %s", args[1]))
+		if absDest, err := filepath.Abs(args[1]); err == nil {
+			dest = absDest
+		} else {
+			utils.Fatalf("could not get download path: %v", err)
+		}
+	}
+
+	var (
+		bzzapi      = strings.TrimRight(ctx.GlobalString(SwarmApiFlag.Name), "/")
+		isRecursive = ctx.Bool(SwarmRecursiveFlag.Name)
+		client      = swarm.NewClient(bzzapi)
+	)
+
+	if fi, err := os.Stat(dest); err == nil {
+		if isRecursive && !fi.Mode().IsDir() {
+			utils.Fatalf("destination path is not a directory!")
+		}
+	} else {
+		if !os.IsNotExist(err) {
+			utils.Fatalf("could not stat path: %v", err)
+		}
+	}
+
+	uri, err := api.Parse(args[0])
+	if err != nil {
+		utils.Fatalf("could not parse uri argument: %v", err)
+	}
+
+	// assume behaviour according to --recursive switch
+	if isRecursive {
+		if err := client.DownloadDirectory(uri.Addr, uri.Path, dest); err != nil {
+			utils.Fatalf("encoutered an error while downloading directory: %v", err)
+		}
+	} else {
+		// we are downloading a file
+		log.Debug(fmt.Sprintf("downloading file/path from a manifest. hash: %s, path:%s", uri.Addr, uri.Path))
+
+		err := client.DownloadFile(uri.Addr, uri.Path, dest)
+		if err != nil {
+			utils.Fatalf("could not download %s from given address: %s. error: %v", uri.Path, uri.Addr, err)
+		}
+	}
+}

cmd/swarm/export_test.go

@@ -0,0 +1,139 @@
+// Copyright 2018 The go-ethereum Authors
+// This file is part of go-ethereum.
+//
+// go-ethereum is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// go-ethereum is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with go-ethereum. If not, see <http://www.gnu.org/licenses/>.
+
+package main
+
+import (
+	"bytes"
+	"crypto/md5"
+	"crypto/rand"
+	"io"
+	"io/ioutil"
+	"net/http"
+	"os"
+	"strings"
+	"testing"
+
+	"github.com/ethereum/go-ethereum/swarm"
+)
+
+// TestCLISwarmExportImport perform the following test:
+// 1. runs swarm node
+// 2. uploads a random file
+// 3. runs an export of the local datastore
+// 4. runs a second swarm node
+// 5. imports the exported datastore
+// 6. fetches the uploaded random file from the second node
+func TestCLISwarmExportImport(t *testing.T) {
+	cluster := newTestCluster(t, 1)
+
+	// generate random 10mb file
+	f, cleanup := generateRandomFile(t, 10000000)
+	defer cleanup()
+
+	// upload the file with 'swarm up' and expect a hash
+	up := runSwarm(t, "--bzzapi", cluster.Nodes[0].URL, "up", f.Name())
+	_, matches := up.ExpectRegexp(`[a-f\d]{64}`)
+	up.ExpectExit()
+	hash := matches[0]
+
+	var info swarm.Info
+	if err := cluster.Nodes[0].Client.Call(&info, "bzz_info"); err != nil {
+		t.Fatal(err)
+	}
+
+	cluster.Stop()
+	defer cluster.Cleanup()
+
+	// generate an export.tar
+	exportCmd := runSwarm(t, "db", "export", info.Path+"/chunks", info.Path+"/export.tar", strings.TrimPrefix(info.BzzKey, "0x"))
+	exportCmd.ExpectExit()
+
+	// start second cluster
+	cluster2 := newTestCluster(t, 1)
+
+	var info2 swarm.Info
+	if err := cluster2.Nodes[0].Client.Call(&info2, "bzz_info"); err != nil {
+		t.Fatal(err)
+	}
+
+	// stop second cluster, so that we close LevelDB
+	cluster2.Stop()
+	defer cluster2.Cleanup()
+
+	// import the export.tar
+	importCmd := runSwarm(t, "db", "import", info2.Path+"/chunks", info.Path+"/export.tar", strings.TrimPrefix(info2.BzzKey, "0x"))
+	importCmd.ExpectExit()
+
+	// spin second cluster back up
+	cluster2.StartExistingNodes(t, 1, strings.TrimPrefix(info2.BzzAccount, "0x"))
+
+	// try to fetch imported file
+	res, err := http.Get(cluster2.Nodes[0].URL + "/bzz:/" + hash)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	if res.StatusCode != 200 {
+		t.Fatalf("expected HTTP status %d, got %s", 200, res.Status)
+	}
+
+	// compare downloaded file with the generated random file
+	mustEqualFiles(t, f, res.Body)
+}
+
+func mustEqualFiles(t *testing.T, up io.Reader, down io.Reader) {
+	h := md5.New()
+	upLen, err := io.Copy(h, up)
+	if err != nil {
+		t.Fatal(err)
+	}
+	upHash := h.Sum(nil)
+	h.Reset()
+	downLen, err := io.Copy(h, down)
+	if err != nil {
+		t.Fatal(err)
+	}
+	downHash := h.Sum(nil)
+
+	if !bytes.Equal(upHash, downHash) || upLen != downLen {
+		t.Fatalf("downloaded imported file md5=%x (length %v) is not the same as the generated one mp5=%x (length %v)", downHash, downLen, upHash, upLen)
+	}
+}
+
+func generateRandomFile(t *testing.T, size int) (f *os.File, teardown func()) {
+	// create a tmp file
+	tmp, err := ioutil.TempFile("", "swarm-test")
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	// callback for tmp file cleanup
+	teardown = func() {
+		tmp.Close()
+		os.Remove(tmp.Name())
+	}
+
+	// write 10mb random data to file
+	buf := make([]byte, 10000000)
+	_, err = rand.Read(buf)
+	if err != nil {
+		t.Fatal(err)
+	}
+	ioutil.WriteFile(tmp.Name(), buf, 0755)
+
+	return tmp, teardown
+}

cmd/swarm/fs.go

@@ -0,0 +1,127 @@
+// Copyright 2018 The go-ethereum Authors
+// This file is part of go-ethereum.
+//
+// go-ethereum is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// go-ethereum is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with go-ethereum. If not, see <http://www.gnu.org/licenses/>.
+
+package main
+
+import (
+	"context"
+	"fmt"
+	"path/filepath"
+	"strings"
+	"time"
+
+	"github.com/ethereum/go-ethereum/cmd/utils"
+	"github.com/ethereum/go-ethereum/node"
+	"github.com/ethereum/go-ethereum/rpc"
+	"github.com/ethereum/go-ethereum/swarm/fuse"
+	"gopkg.in/urfave/cli.v1"
+)
+
+func mount(cliContext *cli.Context) {
+	args := cliContext.Args()
+	if len(args) < 2 {
+		utils.Fatalf("Usage: swarm fs mount --ipcpath <path to bzzd.ipc> <manifestHash> <file name>")
+	}
+
+	client, err := dialRPC(cliContext)
+	if err != nil {
+		utils.Fatalf("had an error dailing to RPC endpoint: %v", err)
+	}
+	defer client.Close()
+
+	ctx, cancel := context.WithTimeout(context.Background(), 30*time.Second)
+	defer cancel()
+
+	mf := &fuse.MountInfo{}
+	mountPoint, err := filepath.Abs(filepath.Clean(args[1]))
+	if err != nil {
+		utils.Fatalf("error expanding path for mount point: %v", err)
+	}
+	err = client.CallContext(ctx, mf, "swarmfs_mount", args[0], mountPoint)
+	if err != nil {
+		utils.Fatalf("had an error calling the RPC endpoint while mounting: %v", err)
+	}
+}
+
+func unmount(cliContext *cli.Context) {
+	args := cliContext.Args()
+
+	if len(args) < 1 {
+		utils.Fatalf("Usage: swarm fs unmount --ipcpath <path to bzzd.ipc> <mount path>")
+	}
+	client, err := dialRPC(cliContext)
+	if err != nil {
+		utils.Fatalf("had an error dailing to RPC endpoint: %v", err)
+	}
+	defer client.Close()
+
+	ctx, cancel := context.WithTimeout(context.Background(), 30*time.Second)
+	defer cancel()
+
+	mf := fuse.MountInfo{}
+	err = client.CallContext(ctx, &mf, "swarmfs_unmount", args[0])
+	if err != nil {
+		utils.Fatalf("encountered an error calling the RPC endpoint while unmounting: %v", err)
+	}
+	fmt.Printf("%s\n", mf.LatestManifest) //print the latest manifest hash for user reference
+}
+
+func listMounts(cliContext *cli.Context) {
+	client, err := dialRPC(cliContext)
+	if err != nil {
+		utils.Fatalf("had an error dailing to RPC endpoint: %v", err)
+	}
+	defer client.Close()
+
+	ctx, cancel := context.WithTimeout(context.Background(), 30*time.Second)
+	defer cancel()
+
+	mf := []fuse.MountInfo{}
+	err = client.CallContext(ctx, &mf, "swarmfs_listmounts")
+	if err != nil {
+		utils.Fatalf("encountered an error calling the RPC endpoint while unmounting: %v", err)
+	}
+	if len(mf) == 0 {
+		fmt.Print("Could not found any swarmfs mounts. Please make sure you've specified the correct RPC endpoint\n")
+	} else {
+		fmt.Printf("Found %d swarmfs mount(s):\n", len(mf))
+		for i, mountInfo := range mf {
+			fmt.Printf("%d:\n", i)
+			fmt.Printf("\tMount point: %s\n", mountInfo.MountPoint)
+			fmt.Printf("\tLatest Manifest: %s\n", mountInfo.LatestManifest)
+			fmt.Printf("\tStart Manifest: %s\n", mountInfo.StartManifest)
+		}
+	}
+}
+
+func dialRPC(ctx *cli.Context) (*rpc.Client, error) {
+	var endpoint string
+
+	if ctx.IsSet(utils.IPCPathFlag.Name) {
+		endpoint = ctx.String(utils.IPCPathFlag.Name)
+	} else {
+		utils.Fatalf("swarm ipc endpoint not specified")
+	}
+
+	if endpoint == "" {
+		endpoint = node.DefaultIPCEndpoint(clientIdentifier)
+	} else if strings.HasPrefix(endpoint, "rpc:") || strings.HasPrefix(endpoint, "ipc:") {
+		// Backwards compatibility with geth < 1.5 which required
+		// these prefixes.
+		endpoint = endpoint[4:]
+	}
+	return rpc.Dial(endpoint)
+}

cmd/swarm/fs_test.go

@@ -0,0 +1,236 @@
+// Copyright 2018 The go-ethereum Authors
+// This file is part of go-ethereum.
+//
+// go-ethereum is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// go-ethereum is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with go-ethereum. If not, see <http://www.gnu.org/licenses/>.
+
+// +build linux darwin freebsd
+
+package main
+
+import (
+	"bytes"
+	"io"
+	"io/ioutil"
+	"os"
+	"path/filepath"
+	"strings"
+	"testing"
+	"time"
+
+	"github.com/ethereum/go-ethereum/log"
+	colorable "github.com/mattn/go-colorable"
+)
+
+func init() {
+	log.PrintOrigins(true)
+	log.Root().SetHandler(log.LvlFilterHandler(log.Lvl(*loglevel), log.StreamHandler(colorable.NewColorableStderr(), log.TerminalFormat(true))))
+}
+
+type testFile struct {
+	filePath string
+	content  string
+}
+
+// TestCLISwarmFs is a high-level test of swarmfs
+func TestCLISwarmFs(t *testing.T) {
+	cluster := newTestCluster(t, 3)
+	defer cluster.Shutdown()
+
+	// create a tmp dir
+	mountPoint, err := ioutil.TempDir("", "swarm-test")
+	log.Debug("swarmfs cli test", "1st mount", mountPoint)
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer os.RemoveAll(mountPoint)
+
+	handlingNode := cluster.Nodes[0]
+	mhash := doUploadEmptyDir(t, handlingNode)
+	log.Debug("swarmfs cli test: mounting first run", "ipc path", filepath.Join(handlingNode.Dir, handlingNode.IpcPath))
+
+	mount := runSwarm(t, []string{
+		"fs",
+		"mount",
+		"--ipcpath", filepath.Join(handlingNode.Dir, handlingNode.IpcPath),
+		mhash,
+		mountPoint,
+	}...)
+	mount.ExpectExit()
+
+	filesToAssert := []*testFile{}
+
+	dirPath, err := createDirInDir(mountPoint, "testSubDir")
+	if err != nil {
+		t.Fatal(err)
+	}
+	dirPath2, err := createDirInDir(dirPath, "AnotherTestSubDir")
+
+	dummyContent := "somerandomtestcontentthatshouldbeasserted"
+	dirs := []string{
+		mountPoint,
+		dirPath,
+		dirPath2,
+	}
+	files := []string{"f1.tmp", "f2.tmp"}
+	for _, d := range dirs {
+		for _, entry := range files {
+			tFile, err := createTestFileInPath(d, entry, dummyContent)
+			if err != nil {
+				t.Fatal(err)
+			}
+			filesToAssert = append(filesToAssert, tFile)
+		}
+	}
+	if len(filesToAssert) != len(dirs)*len(files) {
+		t.Fatalf("should have %d files to assert now, got %d", len(dirs)*len(files), len(filesToAssert))
+	}
+	hashRegexp := `[a-f\d]{64}`
+	log.Debug("swarmfs cli test: unmounting first run...", "ipc path", filepath.Join(handlingNode.Dir, handlingNode.IpcPath))
+
+	unmount := runSwarm(t, []string{
+		"fs",
+		"unmount",
+		"--ipcpath", filepath.Join(handlingNode.Dir, handlingNode.IpcPath),
+		mountPoint,
+	}...)
+	_, matches := unmount.ExpectRegexp(hashRegexp)
+	unmount.ExpectExit()
+
+	hash := matches[0]
+	if hash == mhash {
+		t.Fatal("this should not be equal")
+	}
+	log.Debug("swarmfs cli test: asserting no files in mount point")
+
+	//check that there's nothing in the mount folder
+	filesInDir, err := ioutil.ReadDir(mountPoint)
+	if err != nil {
+		t.Fatalf("had an error reading the directory: %v", err)
+	}
+
+	if len(filesInDir) != 0 {
+		t.Fatal("there shouldn't be anything here")
+	}
+
+	secondMountPoint, err := ioutil.TempDir("", "swarm-test")
+	log.Debug("swarmfs cli test", "2nd mount point at", secondMountPoint)
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer os.RemoveAll(secondMountPoint)
+
+	log.Debug("swarmfs cli test: remounting at second mount point", "ipc path", filepath.Join(handlingNode.Dir, handlingNode.IpcPath))
+
+	//remount, check files
+	newMount := runSwarm(t, []string{
+		"fs",
+		"mount",
+		"--ipcpath", filepath.Join(handlingNode.Dir, handlingNode.IpcPath),
+		hash, // the latest hash
+		secondMountPoint,
+	}...)
+
+	newMount.ExpectExit()
+	time.Sleep(1 * time.Second)
+
+	filesInDir, err = ioutil.ReadDir(secondMountPoint)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	if len(filesInDir) == 0 {
+		t.Fatal("there should be something here")
+	}
+
+	log.Debug("swarmfs cli test: traversing file tree to see it matches previous mount")
+
+	for _, file := range filesToAssert {
+		file.filePath = strings.Replace(file.filePath, mountPoint, secondMountPoint, -1)
+		fileBytes, err := ioutil.ReadFile(file.filePath)
+
+		if err != nil {
+			t.Fatal(err)
+		}
+		if !bytes.Equal(fileBytes, bytes.NewBufferString(file.content).Bytes()) {
+			t.Fatal("this should be equal")
+		}
+	}
+
+	log.Debug("swarmfs cli test: unmounting second run", "ipc path", filepath.Join(handlingNode.Dir, handlingNode.IpcPath))
+
+	unmountSec := runSwarm(t, []string{
+		"fs",
+		"unmount",
+		"--ipcpath", filepath.Join(handlingNode.Dir, handlingNode.IpcPath),
+		secondMountPoint,
+	}...)
+
+	_, matches = unmountSec.ExpectRegexp(hashRegexp)
+	unmountSec.ExpectExit()
+
+	if matches[0] != hash {
+		t.Fatal("these should be equal - no changes made")
+	}
+}
+
+func doUploadEmptyDir(t *testing.T, node *testNode) string {
+	// create a tmp dir
+	tmpDir, err := ioutil.TempDir("", "swarm-test")
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer os.RemoveAll(tmpDir)
+
+	hashRegexp := `[a-f\d]{64}`
+
+	flags := []string{
+		"--bzzapi", node.URL,
+		"--recursive",
+		"up",
+		tmpDir}
+
+	log.Info("swarmfs cli test: uploading dir with 'swarm up'")
+	up := runSwarm(t, flags...)
+	_, matches := up.ExpectRegexp(hashRegexp)
+	up.ExpectExit()
+	hash := matches[0]
+	log.Info("swarmfs cli test: dir uploaded", "hash", hash)
+	return hash
+}
+
+func createDirInDir(createInDir string, dirToCreate string) (string, error) {
+	fullpath := filepath.Join(createInDir, dirToCreate)
+	err := os.MkdirAll(fullpath, 0777)
+	if err != nil {
+		return "", err
+	}
+	return fullpath, nil
+}
+
+func createTestFileInPath(dir, filename, content string) (*testFile, error) {
+	tFile := &testFile{}
+	filePath := filepath.Join(dir, filename)
+	if file, err := os.Create(filePath); err == nil {
+		tFile.content = content
+		tFile.filePath = filePath
+
+		_, err = io.WriteString(file, content)
+		if err != nil {
+			return nil, err
+		}
+		file.Close()
+	}
+
+	return tFile, nil
+}

cmd/swarm/hash.go

@@ -18,6 +18,7 @@
 package main
 
 import (
+	"context"
 	"fmt"
 	"os"
 
@@ -38,11 +39,11 @@ func hash(ctx *cli.Context) {
 	defer f.Close()
 
 	stat, _ := f.Stat()
-	chunker := storage.NewTreeChunker(storage.NewChunkerParams())
+	fileStore := storage.NewFileStore(storage.NewMapChunkStore(), storage.NewFileStoreParams())
-	key, err := chunker.Split(f, stat.Size(), nil, nil, nil)
+	addr, _, err := fileStore.Store(context.TODO(), f, stat.Size(), false)
 	if err != nil {
 		utils.Fatalf("%v\n", err)
 	} else {
-		fmt.Printf("%v\n", key)
+		fmt.Printf("%v\n", addr)
 	}
 }

cmd/swarm/main.go

@@ -34,7 +34,6 @@ import (
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/console"
 	"github.com/ethereum/go-ethereum/crypto"
-	"github.com/ethereum/go-ethereum/ethclient"
 	"github.com/ethereum/go-ethereum/internal/debug"
 	"github.com/ethereum/go-ethereum/log"
 	"github.com/ethereum/go-ethereum/node"
@@ -49,6 +48,22 @@ import (
 )
 
 const clientIdentifier = "swarm"
+const helpTemplate = `NAME:
+{{.HelpName}} - {{.Usage}}
+
+USAGE:
+{{if .UsageText}}{{.UsageText}}{{else}}{{.HelpName}}{{if .VisibleFlags}} [command options]{{end}} {{if .ArgsUsage}}{{.ArgsUsage}}{{else}}[arguments...]{{end}}{{end}}{{if .Category}}
+
+CATEGORY:
+{{.Category}}{{end}}{{if .Description}}
+
+DESCRIPTION:
+{{.Description}}{{end}}{{if .VisibleFlags}}
+
+OPTIONS:
+{{range .VisibleFlags}}{{.}}
+{{end}}{{end}}
+`
 
 var (
 	gitCommit        string // Git SHA1 commit hash of the release (set via linker flags)
@@ -87,10 +102,6 @@ var (
 		Usage:  "Network identifier (integer, default 3=swarm testnet)",
 		EnvVar: SWARM_ENV_NETWORK_ID,
 	}
-	SwarmConfigPathFlag = cli.StringFlag{
-		Name:  "bzzconfig",
-		Usage: "DEPRECATED: please use --config path/to/TOML-file",
-	}
 	SwarmSwapEnabledFlag = cli.BoolFlag{
 		Name:   "swap",
 		Usage:  "Swarm SWAP enabled (default false)",
@@ -101,10 +112,20 @@ var (
 		Usage:  "URL of the Ethereum API provider to use to settle SWAP payments",
 		EnvVar: SWARM_ENV_SWAP_API,
 	}
-	SwarmSyncEnabledFlag = cli.BoolTFlag{
+	SwarmSyncDisabledFlag = cli.BoolTFlag{
-		Name:   "sync",
+		Name:   "nosync",
-		Usage:  "Swarm Syncing enabled (default true)",
+		Usage:  "Disable swarm syncing",
-		EnvVar: SWARM_ENV_SYNC_ENABLE,
+		EnvVar: SWARM_ENV_SYNC_DISABLE,
+	}
+	SwarmSyncUpdateDelay = cli.DurationFlag{
+		Name:   "sync-update-delay",
+		Usage:  "Duration for sync subscriptions update after no new peers are added (default 15s)",
+		EnvVar: SWARM_ENV_SYNC_UPDATE_DELAY,
+	}
+	SwarmDeliverySkipCheckFlag = cli.BoolFlag{
+		Name:   "delivery-skip-check",
+		Usage:  "Skip chunk delivery check (default false)",
+		EnvVar: SWARM_ENV_DELIVERY_SKIP_CHECK,
 	}
 	EnsAPIFlag = cli.StringSliceFlag{
 		Name:   "ens-api",
@@ -116,13 +137,13 @@ var (
 		Usage: "Swarm HTTP endpoint",
 		Value: "http://127.0.0.1:8500",
 	}
-	SwarmRecursiveUploadFlag = cli.BoolFlag{
+	SwarmRecursiveFlag = cli.BoolFlag{
 		Name:  "recursive",
 		Usage: "Upload directories recursively",
 	}
 	SwarmWantManifestFlag = cli.BoolTFlag{
 		Name:  "manifest",
-		Usage: "Automatic manifest upload",
+		Usage: "Automatic manifest upload (default true)",
 	}
 	SwarmUploadDefaultPath = cli.StringFlag{
 		Name:  "defaultpath",
@@ -134,22 +155,31 @@ var (
 	}
 	SwarmUploadMimeType = cli.StringFlag{
 		Name:  "mime",
-		Usage: "force mime type",
+		Usage: "Manually specify MIME type",
+	}
+	SwarmEncryptedFlag = cli.BoolFlag{
+		Name:  "encrypt",
+		Usage: "use encrypted upload",
 	}
 	CorsStringFlag = cli.StringFlag{
 		Name:   "corsdomain",
 		Usage:  "Domain on which to send Access-Control-Allow-Origin header (multiple domains can be supplied separated by a ',')",
 		EnvVar: SWARM_ENV_CORS,
 	}
-
+	SwarmStorePath = cli.StringFlag{
-	// the following flags are deprecated and should be removed in the future
+		Name:   "store.path",
-	DeprecatedEthAPIFlag = cli.StringFlag{
+		Usage:  "Path to leveldb chunk DB (default <$GETH_ENV_DIR>/swarm/bzz-<$BZZ_KEY>/chunks)",
-		Name:  "ethapi",
+		EnvVar: SWARM_ENV_STORE_PATH,
-		Usage: "DEPRECATED: please use --ens-api and --swap-api",
 	}
-	DeprecatedEnsAddrFlag = cli.StringFlag{
+	SwarmStoreCapacity = cli.Uint64Flag{
-		Name:  "ens-addr",
+		Name:   "store.size",
-		Usage: "DEPRECATED: ENS contract address, please use --ens-api with contract address according to its format",
+		Usage:  "Number of chunks (5M is roughly 20-25GB) (default 5000000)",
+		EnvVar: SWARM_ENV_STORE_CAPACITY,
+	}
+	SwarmStoreCacheCapacity = cli.UintFlag{
+		Name:   "store.cache.size",
+		Usage:  "Number of recent chunks cached in memory (default 5000)",
+		EnvVar: SWARM_ENV_STORE_CACHE_CAPACITY,
 	}
 )
 
@@ -181,87 +211,126 @@ func init() {
 	app.Commands = []cli.Command{
 		{
 			Action:             version,
+			CustomHelpTemplate: helpTemplate,
 			Name:               "version",
 			Usage:              "Print version numbers",
-			ArgsUsage: " ",
+			Description:        "The output of this command is supposed to be machine-readable",
-			Description: `
-The output of this command is supposed to be machine-readable.
-`,
 		},
 		{
 			Action:             upload,
+			CustomHelpTemplate: helpTemplate,
 			Name:               "up",
-			Usage:     "upload a file or directory to swarm using the HTTP API",
+			Usage:              "uploads a file or directory to swarm using the HTTP API",
-			ArgsUsage: " <file>",
+			ArgsUsage:          "<file>",
-			Description: `
+			Flags:              []cli.Flag{SwarmEncryptedFlag},
-"upload a file or directory to swarm using the HTTP API and prints the root hash",
+			Description:        "uploads a file or directory to swarm using the HTTP API and prints the root hash",
-`,
 		},
 		{
 			Action:             list,
+			CustomHelpTemplate: helpTemplate,
 			Name:               "ls",
 			Usage:              "list files and directories contained in a manifest",
-			ArgsUsage: " <manifest> [<prefix>]",
+			ArgsUsage:          "<manifest> [<prefix>]",
-			Description: `
+			Description:        "Lists files and directories contained in a manifest",
-Lists files and directories contained in a manifest.
-`,
 		},
 		{
 			Action:             hash,
+			CustomHelpTemplate: helpTemplate,
 			Name:               "hash",
 			Usage:              "print the swarm hash of a file or directory",
-			ArgsUsage: " <file>",
+			ArgsUsage:          "<file>",
-			Description: `
+			Description:        "Prints the swarm hash of file or directory",
-Prints the swarm hash of file or directory.
-`,
 		},
 		{
-			Name:      "manifest",
+			Action:    download,
-			Usage:     "update a MANIFEST",
+			Name:      "down",
-			ArgsUsage: "manifest COMMAND",
+			Flags:     []cli.Flag{SwarmRecursiveFlag},
+			Usage:     "downloads a swarm manifest or a file inside a manifest",
+			ArgsUsage: " <uri> [<dir>]",
 			Description: `
-Updates a MANIFEST by adding/removing/updating the hash of a path.
+Downloads a swarm bzz uri to the given dir. When no dir is provided, working directory is assumed. --recursive flag is expected when downloading a manifest with multiple entries.
 `,
+		},
+
+		{
+			Name:               "manifest",
+			CustomHelpTemplate: helpTemplate,
+			Usage:              "perform operations on swarm manifests",
+			ArgsUsage:          "COMMAND",
+			Description:        "Updates a MANIFEST by adding/removing/updating the hash of a path.\nCOMMAND could be: add, update, remove",
 			Subcommands: []cli.Command{
 				{
 					Action:             add,
+					CustomHelpTemplate: helpTemplate,
 					Name:               "add",
 					Usage:              "add a new path to the manifest",
 					ArgsUsage:          "<MANIFEST> <path> <hash> [<content-type>]",
-					Description: `
+					Description:        "Adds a new path to the manifest",
-Adds a new path to the manifest
-`,
 				},
 				{
 					Action:             update,
+					CustomHelpTemplate: helpTemplate,
 					Name:               "update",
 					Usage:              "update the hash for an already existing path in the manifest",
 					ArgsUsage:          "<MANIFEST> <path> <newhash> [<newcontent-type>]",
-					Description: `
+					Description:        "Update the hash for an already existing path in the manifest",
-Update the hash for an already existing path in the manifest
-`,
 				},
 				{
 					Action:             remove,
+					CustomHelpTemplate: helpTemplate,
 					Name:               "remove",
 					Usage:              "removes a path from the manifest",
 					ArgsUsage:          "<MANIFEST> <path>",
-					Description: `
+					Description:        "Removes a path from the manifest",
-Removes a path from the manifest
+				},
-`,
+			},
+		},
+		{
+			Name:               "fs",
+			CustomHelpTemplate: helpTemplate,
+			Usage:              "perform FUSE operations",
+			ArgsUsage:          "fs COMMAND",
+			Description:        "Performs FUSE operations by mounting/unmounting/listing mount points. This assumes you already have a Swarm node running locally. For all operation you must reference the correct path to bzzd.ipc in order to communicate with the node",
+			Subcommands: []cli.Command{
+				{
+					Action:             mount,
+					CustomHelpTemplate: helpTemplate,
+					Name:               "mount",
+					Flags:              []cli.Flag{utils.IPCPathFlag},
+					Usage:              "mount a swarm hash to a mount point",
+					ArgsUsage:          "swarm fs mount --ipcpath <path to bzzd.ipc> <manifest hash> <mount point>",
+					Description:        "Mounts a Swarm manifest hash to a given mount point. This assumes you already have a Swarm node running locally. You must reference the correct path to your bzzd.ipc file",
+				},
+				{
+					Action:             unmount,
+					CustomHelpTemplate: helpTemplate,
+					Name:               "unmount",
+					Flags:              []cli.Flag{utils.IPCPathFlag},
+					Usage:              "unmount a swarmfs mount",
+					ArgsUsage:          "swarm fs unmount --ipcpath <path to bzzd.ipc> <mount point>",
+					Description:        "Unmounts a swarmfs mount residing at <mount point>. This assumes you already have a Swarm node running locally. You must reference the correct path to your bzzd.ipc file",
+				},
+				{
+					Action:             listMounts,
+					CustomHelpTemplate: helpTemplate,
+					Name:               "list",
+					Flags:              []cli.Flag{utils.IPCPathFlag},
+					Usage:              "list swarmfs mounts",
+					ArgsUsage:          "swarm fs list --ipcpath <path to bzzd.ipc>",
+					Description:        "Lists all mounted swarmfs volumes. This assumes you already have a Swarm node running locally. You must reference the correct path to your bzzd.ipc file",
 				},
 			},
 		},
 		{
 			Name:               "db",
+			CustomHelpTemplate: helpTemplate,
 			Usage:              "manage the local chunk database",
 			ArgsUsage:          "db COMMAND",
-			Description: `
+			Description:        "Manage the local chunk database",
-Manage the local chunk database.
-`,
 			Subcommands: []cli.Command{
 				{
 					Action:             dbExport,
+					CustomHelpTemplate: helpTemplate,
 					Name:               "export",
 					Usage:              "export a local chunk database as a tar archive (use - to send to stdout)",
 					ArgsUsage:          "<chunkdb> <file>",
@@ -278,6 +347,7 @@ pv(1) tool to get a progress bar:
 				},
 				{
 					Action:             dbImport,
+					CustomHelpTemplate: helpTemplate,
 					Name:               "import",
 					Usage:              "import chunks from a tar archive into a local chunk database (use - to read from stdin)",
 					ArgsUsage:          "<chunkdb> <file>",
@@ -294,26 +364,15 @@ pv(1) tool to get a progress bar:
 				},
 				{
 					Action:             dbClean,
+					CustomHelpTemplate: helpTemplate,
 					Name:               "clean",
 					Usage:              "remove corrupt entries from a local chunk database",
 					ArgsUsage:          "<chunkdb>",
-					Description: `
+					Description:        "Remove corrupt entries from a local chunk database",
-Remove corrupt entries from a local chunk database.
-`,
 				},
 			},
 		},
-		{
+
-			Action: func(ctx *cli.Context) {
-				utils.Fatalf("ERROR: 'swarm cleandb' has been removed, please use 'swarm db clean'.")
-			},
-			Name:      "cleandb",
-			Usage:     "DEPRECATED: use 'swarm db clean'",
-			ArgsUsage: " ",
-			Description: `
-DEPRECATED: use 'swarm db clean'.
-`,
-		},
 		// See config.go
 		DumpConfigCommand,
 	}
@@ -339,10 +398,11 @@ DEPRECATED: use 'swarm db clean'.
 		CorsStringFlag,
 		EnsAPIFlag,
 		SwarmTomlConfigPathFlag,
-		SwarmConfigPathFlag,
 		SwarmSwapEnabledFlag,
 		SwarmSwapAPIFlag,
-		SwarmSyncEnabledFlag,
+		SwarmSyncDisabledFlag,
+		SwarmSyncUpdateDelay,
+		SwarmDeliverySkipCheckFlag,
 		SwarmListenAddrFlag,
 		SwarmPortFlag,
 		SwarmAccountFlag,
@@ -350,15 +410,24 @@ DEPRECATED: use 'swarm db clean'.
 		ChequebookAddrFlag,
 		// upload flags
 		SwarmApiFlag,
-		SwarmRecursiveUploadFlag,
+		SwarmRecursiveFlag,
 		SwarmWantManifestFlag,
 		SwarmUploadDefaultPath,
 		SwarmUpFromStdinFlag,
 		SwarmUploadMimeType,
-		//deprecated flags
+		// storage flags
-		DeprecatedEthAPIFlag,
+		SwarmStorePath,
-		DeprecatedEnsAddrFlag,
+		SwarmStoreCapacity,
+		SwarmStoreCacheCapacity,
 	}
+	rpcFlags := []cli.Flag{
+		utils.WSEnabledFlag,
+		utils.WSListenAddrFlag,
+		utils.WSPortFlag,
+		utils.WSApiFlag,
+		utils.WSAllowedOriginsFlag,
+	}
+	app.Flags = append(app.Flags, rpcFlags...)
 	app.Flags = append(app.Flags, debug.Flags...)
 	app.Flags = append(app.Flags, swarmmetrics.Flags...)
 	app.Before = func(ctx *cli.Context) error {
@@ -383,16 +452,12 @@ func main() {
 }
 
 func version(ctx *cli.Context) error {
-	fmt.Println(strings.Title(clientIdentifier))
+	fmt.Println("Version:", SWARM_VERSION)
-	fmt.Println("Version:", params.Version)
 	if gitCommit != "" {
 		fmt.Println("Git Commit:", gitCommit)
 	}
-	fmt.Println("Network Id:", ctx.GlobalInt(utils.NetworkIdFlag.Name))
 	fmt.Println("Go Version:", runtime.Version())
 	fmt.Println("OS:", runtime.GOOS)
-	fmt.Printf("GOPATH=%s\n", os.Getenv("GOPATH"))
-	fmt.Printf("GOROOT=%s\n", runtime.GOROOT())
 	return nil
 }
 
@@ -405,6 +470,10 @@ func bzzd(ctx *cli.Context) error {
 	}
 
 	cfg := defaultNodeConfig
+
+	//pss operates on ws
+	cfg.WSModules = append(cfg.WSModules, "pss")
+
 	//geth only supports --datadir via command line
 	//in order to be consistent within swarm, if we pass --datadir via environment variable
 	//or via config file, we get the same directory for geth and swarm
@@ -421,7 +490,7 @@ func bzzd(ctx *cli.Context) error {
 	//due to overriding behavior
 	initSwarmNode(bzzconfig, stack, ctx)
 	//register BZZ as node.Service in the ethereum node
-	registerBzzService(bzzconfig, ctx, stack)
+	registerBzzService(bzzconfig, stack)
 	//start the node
 	utils.StartNode(stack)
 
@@ -439,7 +508,7 @@ func bzzd(ctx *cli.Context) error {
 		bootnodes := strings.Split(bzzconfig.BootNodes, ",")
 		injectBootnodes(stack.Server(), bootnodes)
 	} else {
-		if bzzconfig.NetworkId == 3 {
+		if bzzconfig.NetworkID == 3 {
 			injectBootnodes(stack.Server(), testbetBootNodes)
 		}
 	}
@@ -448,21 +517,11 @@ func bzzd(ctx *cli.Context) error {
 	return nil
 }
 
-func registerBzzService(bzzconfig *bzzapi.Config, ctx *cli.Context, stack *node.Node) {
+func registerBzzService(bzzconfig *bzzapi.Config, stack *node.Node) {
-
 	//define the swarm service boot function
-	boot := func(ctx *node.ServiceContext) (node.Service, error) {
+	boot := func(_ *node.ServiceContext) (node.Service, error) {
-		var swapClient *ethclient.Client
+		// In production, mockStore must be always nil.
-		var err error
+		return swarm.NewSwarm(bzzconfig, nil)
-		if bzzconfig.SwapApi != "" {
-			log.Info("connecting to SWAP API", "url", bzzconfig.SwapApi)
-			swapClient, err = ethclient.Dial(bzzconfig.SwapApi)
-			if err != nil {
-				return nil, fmt.Errorf("error connecting to SWAP API %s: %s", bzzconfig.SwapApi, err)
-			}
-		}
-
-		return swarm.NewSwarm(ctx, swapClient, bzzconfig)
 	}
 	//register within the ethereum node
 	if err := stack.Register(boot); err != nil {

cmd/swarm/manifest.go

@@ -131,13 +131,13 @@ func addEntryToManifest(ctx *cli.Context, mhash, path, hash, ctype string) strin
 		longestPathEntry = api.ManifestEntry{}
 	)
 
-	mroot, err := client.DownloadManifest(mhash)
+	mroot, isEncrypted, err := client.DownloadManifest(mhash)
 	if err != nil {
 		utils.Fatalf("Manifest download failed: %v", err)
 	}
 
 	//TODO: check if the "hash" to add is valid and present in swarm
-	_, err = client.DownloadManifest(hash)
+	_, _, err = client.DownloadManifest(hash)
 	if err != nil {
 		utils.Fatalf("Hash to add is not present: %v", err)
 	}
@@ -180,7 +180,7 @@ func addEntryToManifest(ctx *cli.Context, mhash, path, hash, ctype string) strin
 		mroot.Entries = append(mroot.Entries, newEntry)
 	}
 
-	newManifestHash, err := client.UploadManifest(mroot)
+	newManifestHash, err := client.UploadManifest(mroot, isEncrypted)
 	if err != nil {
 		utils.Fatalf("Manifest upload failed: %v", err)
 	}
@@ -197,7 +197,7 @@ func updateEntryInManifest(ctx *cli.Context, mhash, path, hash, ctype string) st
 		longestPathEntry = api.ManifestEntry{}
 	)
 
-	mroot, err := client.DownloadManifest(mhash)
+	mroot, isEncrypted, err := client.DownloadManifest(mhash)
 	if err != nil {
 		utils.Fatalf("Manifest download failed: %v", err)
 	}
@@ -257,7 +257,7 @@ func updateEntryInManifest(ctx *cli.Context, mhash, path, hash, ctype string) st
 		mroot = newMRoot
 	}
 
-	newManifestHash, err := client.UploadManifest(mroot)
+	newManifestHash, err := client.UploadManifest(mroot, isEncrypted)
 	if err != nil {
 		utils.Fatalf("Manifest upload failed: %v", err)
 	}
@@ -273,7 +273,7 @@ func removeEntryFromManifest(ctx *cli.Context, mhash, path string) string {
 		longestPathEntry = api.ManifestEntry{}
 	)
 
-	mroot, err := client.DownloadManifest(mhash)
+	mroot, isEncrypted, err := client.DownloadManifest(mhash)
 	if err != nil {
 		utils.Fatalf("Manifest download failed: %v", err)
 	}
@@ -323,7 +323,7 @@ func removeEntryFromManifest(ctx *cli.Context, mhash, path string) string {
 		mroot = newMRoot
 	}
 
-	newManifestHash, err := client.UploadManifest(mroot)
+	newManifestHash, err := client.UploadManifest(mroot, isEncrypted)
 	if err != nil {
 		utils.Fatalf("Manifest upload failed: %v", err)
 	}

cmd/swarm/run_test.go

@@ -81,6 +81,7 @@ type testCluster struct {
 //
 // When starting more than one node, they are connected together using the
 // admin SetPeer RPC method.
+
 func newTestCluster(t *testing.T, size int) *testCluster {
 	cluster := &testCluster{}
 	defer func() {
@@ -96,18 +97,7 @@ func newTestCluster(t *testing.T, size int) *testCluster {
 	cluster.TmpDir = tmpdir
 
 	// start the nodes
-	cluster.Nodes = make([]*testNode, 0, size)
+	cluster.StartNewNodes(t, size)
-	for i := 0; i < size; i++ {
-		dir := filepath.Join(cluster.TmpDir, fmt.Sprintf("swarm%02d", i))
-		if err := os.Mkdir(dir, 0700); err != nil {
-			t.Fatal(err)
-		}
-
-		node := newTestNode(t, dir)
-		node.Name = fmt.Sprintf("swarm%02d", i)
-
-		cluster.Nodes = append(cluster.Nodes, node)
-	}
 
 	if size == 1 {
 		return cluster
@@ -145,12 +135,49 @@ func (c *testCluster) Shutdown() {
 	os.RemoveAll(c.TmpDir)
 }
 
+func (c *testCluster) Stop() {
+	for _, node := range c.Nodes {
+		node.Shutdown()
+	}
+}
+
+func (c *testCluster) StartNewNodes(t *testing.T, size int) {
+	c.Nodes = make([]*testNode, 0, size)
+	for i := 0; i < size; i++ {
+		dir := filepath.Join(c.TmpDir, fmt.Sprintf("swarm%02d", i))
+		if err := os.Mkdir(dir, 0700); err != nil {
+			t.Fatal(err)
+		}
+
+		node := newTestNode(t, dir)
+		node.Name = fmt.Sprintf("swarm%02d", i)
+
+		c.Nodes = append(c.Nodes, node)
+	}
+}
+
+func (c *testCluster) StartExistingNodes(t *testing.T, size int, bzzaccount string) {
+	c.Nodes = make([]*testNode, 0, size)
+	for i := 0; i < size; i++ {
+		dir := filepath.Join(c.TmpDir, fmt.Sprintf("swarm%02d", i))
+		node := existingTestNode(t, dir, bzzaccount)
+		node.Name = fmt.Sprintf("swarm%02d", i)
+
+		c.Nodes = append(c.Nodes, node)
+	}
+}
+
+func (c *testCluster) Cleanup() {
+	os.RemoveAll(c.TmpDir)
+}
+
 type testNode struct {
 	Name    string
 	Addr    string
 	URL     string
 	Enode   string
 	Dir     string
+	IpcPath string
 	Client  *rpc.Client
 	Cmd     *cmdtest.TestCmd
 }
@@ -181,6 +208,72 @@ func getTestAccount(t *testing.T, dir string) (conf *node.Config, account accoun
 	return conf, account
 }
 
+func existingTestNode(t *testing.T, dir string, bzzaccount string) *testNode {
+	conf, _ := getTestAccount(t, dir)
+	node := &testNode{Dir: dir}
+
+	// use a unique IPCPath when running tests on Windows
+	if runtime.GOOS == "windows" {
+		conf.IPCPath = fmt.Sprintf("bzzd-%s.ipc", bzzaccount)
+	}
+
+	// assign ports
+	httpPort, err := assignTCPPort()
+	if err != nil {
+		t.Fatal(err)
+	}
+	p2pPort, err := assignTCPPort()
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	// start the node
+	node.Cmd = runSwarm(t,
+		"--port", p2pPort,
+		"--nodiscover",
+		"--datadir", dir,
+		"--ipcpath", conf.IPCPath,
+		"--ens-api", "",
+		"--bzzaccount", bzzaccount,
+		"--bzznetworkid", "321",
+		"--bzzport", httpPort,
+		"--verbosity", "6",
+	)
+	node.Cmd.InputLine(testPassphrase)
+	defer func() {
+		if t.Failed() {
+			node.Shutdown()
+		}
+	}()
+
+	// wait for the node to start
+	for start := time.Now(); time.Since(start) < 10*time.Second; time.Sleep(50 * time.Millisecond) {
+		node.Client, err = rpc.Dial(conf.IPCEndpoint())
+		if err == nil {
+			break
+		}
+	}
+	if node.Client == nil {
+		t.Fatal(err)
+	}
+
+	// load info
+	var info swarm.Info
+	if err := node.Client.Call(&info, "bzz_info"); err != nil {
+		t.Fatal(err)
+	}
+	node.Addr = net.JoinHostPort("127.0.0.1", info.Port)
+	node.URL = "http://" + node.Addr
+
+	var nodeInfo p2p.NodeInfo
+	if err := node.Client.Call(&nodeInfo, "admin_nodeInfo"); err != nil {
+		t.Fatal(err)
+	}
+	node.Enode = fmt.Sprintf("enode://%s@127.0.0.1:%s", nodeInfo.ID, p2pPort)
+
+	return node
+}
+
 func newTestNode(t *testing.T, dir string) *testNode {
 
 	conf, account := getTestAccount(t, dir)
@@ -239,6 +332,7 @@ func newTestNode(t *testing.T, dir string) *testNode {
 		t.Fatal(err)
 	}
 	node.Enode = fmt.Sprintf("enode://%s@127.0.0.1:%s", nodeInfo.ID, p2pPort)
+	node.IpcPath = conf.IPCPath
 
 	return node
 }

cmd/swarm/swarm-smoke/main.go

@@ -0,0 +1,101 @@
+// Copyright 2018 The go-ethereum Authors
+// This file is part of go-ethereum.
+//
+// go-ethereum is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// go-ethereum is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with go-ethereum. If not, see <http://www.gnu.org/licenses/>.
+
+package main
+
+import (
+	"os"
+	"sort"
+
+	"github.com/ethereum/go-ethereum/log"
+	colorable "github.com/mattn/go-colorable"
+
+	cli "gopkg.in/urfave/cli.v1"
+)
+
+var (
+	endpoints        []string
+	includeLocalhost bool
+	cluster          string
+	scheme           string
+	filesize         int
+	from             int
+	to               int
+)
+
+func main() {
+	log.PrintOrigins(true)
+	log.Root().SetHandler(log.LvlFilterHandler(log.LvlTrace, log.StreamHandler(colorable.NewColorableStderr(), log.TerminalFormat(true))))
+
+	app := cli.NewApp()
+	app.Name = "smoke-test"
+	app.Usage = ""
+
+	app.Flags = []cli.Flag{
+		cli.StringFlag{
+			Name:        "cluster-endpoint",
+			Value:       "testing",
+			Usage:       "cluster to point to (open, or testing)",
+			Destination: &cluster,
+		},
+		cli.IntFlag{
+			Name:        "cluster-from",
+			Value:       8501,
+			Usage:       "swarm node (from)",
+			Destination: &from,
+		},
+		cli.IntFlag{
+			Name:        "cluster-to",
+			Value:       8512,
+			Usage:       "swarm node (to)",
+			Destination: &to,
+		},
+		cli.StringFlag{
+			Name:        "cluster-scheme",
+			Value:       "http",
+			Usage:       "http or https",
+			Destination: &scheme,
+		},
+		cli.BoolFlag{
+			Name:        "include-localhost",
+			Usage:       "whether to include localhost:8500 as an endpoint",
+			Destination: &includeLocalhost,
+		},
+		cli.IntFlag{
+			Name:        "filesize",
+			Value:       1,
+			Usage:       "file size for generated random file in MB",
+			Destination: &filesize,
+		},
+	}
+
+	app.Commands = []cli.Command{
+		{
+			Name:    "upload_and_sync",
+			Aliases: []string{"c"},
+			Usage:   "upload and sync",
+			Action:  cliUploadAndSync,
+		},
+	}
+
+	sort.Sort(cli.FlagsByName(app.Flags))
+	sort.Sort(cli.CommandsByName(app.Commands))
+
+	err := app.Run(os.Args)
+	if err != nil {
+		log.Error(err.Error())
+	}
+}

cmd/swarm/swarm-smoke/upload_and_sync.go

@@ -0,0 +1,190 @@
+// Copyright 2018 The go-ethereum Authors
+// This file is part of go-ethereum.
+//
+// go-ethereum is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// go-ethereum is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with go-ethereum. If not, see <http://www.gnu.org/licenses/>.
+
+package main
+
+import (
+	"bytes"
+	"crypto/md5"
+	"crypto/rand"
+	"fmt"
+	"io"
+	"io/ioutil"
+	"net/http"
+	"os"
+	"os/exec"
+	"strings"
+	"sync"
+	"time"
+
+	"github.com/ethereum/go-ethereum/log"
+	"github.com/pborman/uuid"
+
+	cli "gopkg.in/urfave/cli.v1"
+)
+
+func generateEndpoints(scheme string, cluster string, from int, to int) {
+	if cluster == "prod" {
+		cluster = ""
+	} else {
+		cluster = cluster + "."
+	}
+
+	for port := from; port <= to; port++ {
+		endpoints = append(endpoints, fmt.Sprintf("%s://%v.%sswarm-gateways.net", scheme, port, cluster))
+	}
+
+	if includeLocalhost {
+		endpoints = append(endpoints, "http://localhost:8500")
+	}
+}
+
+func cliUploadAndSync(c *cli.Context) error {
+	defer func(now time.Time) { log.Info("total time", "time", time.Since(now), "size", filesize) }(time.Now())
+
+	generateEndpoints(scheme, cluster, from, to)
+
+	log.Info("uploading to " + endpoints[0] + " and syncing")
+
+	f, cleanup := generateRandomFile(filesize * 1000000)
+	defer cleanup()
+
+	hash, err := upload(f, endpoints[0])
+	if err != nil {
+		log.Error(err.Error())
+		return err
+	}
+
+	fhash, err := digest(f)
+	if err != nil {
+		log.Error(err.Error())
+		return err
+	}
+
+	log.Info("uploaded successfully", "hash", hash, "digest", fmt.Sprintf("%x", fhash))
+
+	if filesize < 10 {
+		time.Sleep(15 * time.Second)
+	} else {
+		time.Sleep(2 * time.Duration(filesize) * time.Second)
+	}
+
+	wg := sync.WaitGroup{}
+	for _, endpoint := range endpoints {
+		endpoint := endpoint
+		ruid := uuid.New()[:8]
+		wg.Add(1)
+		go func(endpoint string, ruid string) {
+			for {
+				err := fetch(hash, endpoint, fhash, ruid)
+				if err != nil {
+					continue
+				}
+
+				wg.Done()
+				return
+			}
+		}(endpoint, ruid)
+	}
+	wg.Wait()
+	log.Info("all endpoints synced random file successfully")
+
+	return nil
+}
+
+// fetch is getting the requested `hash` from the `endpoint` and compares it with the `original` file
+func fetch(hash string, endpoint string, original []byte, ruid string) error {
+	log.Trace("sleeping", "ruid", ruid)
+	time.Sleep(1 * time.Second)
+
+	log.Trace("http get request", "ruid", ruid, "api", endpoint, "hash", hash)
+	res, err := http.Get(endpoint + "/bzz:/" + hash + "/")
+	if err != nil {
+		log.Warn(err.Error(), "ruid", ruid)
+		return err
+	}
+	log.Trace("http get response", "ruid", ruid, "api", endpoint, "hash", hash, "code", res.StatusCode, "len", res.ContentLength)
+
+	if res.StatusCode != 200 {
+		err := fmt.Errorf("expected status code %d, got %v", 200, res.StatusCode)
+		log.Warn(err.Error(), "ruid", ruid)
+		return err
+	}
+
+	defer res.Body.Close()
+
+	rdigest, err := digest(res.Body)
+	if err != nil {
+		log.Warn(err.Error(), "ruid", ruid)
+		return err
+	}
+
+	if !bytes.Equal(rdigest, original) {
+		err := fmt.Errorf("downloaded imported file md5=%x is not the same as the generated one=%x", rdigest, original)
+		log.Warn(err.Error(), "ruid", ruid)
+		return err
+	}
+
+	log.Trace("downloaded file matches random file", "ruid", ruid, "len", res.ContentLength)
+
+	return nil
+}
+
+// upload is uploading a file `f` to `endpoint` via the `swarm up` cmd
+func upload(f *os.File, endpoint string) (string, error) {
+	var out bytes.Buffer
+	cmd := exec.Command("swarm", "--bzzapi", endpoint, "up", f.Name())
+	cmd.Stdout = &out
+	err := cmd.Run()
+	if err != nil {
+		return "", err
+	}
+	hash := strings.TrimRight(out.String(), "\r\n")
+	return hash, nil
+}
+
+func digest(r io.Reader) ([]byte, error) {
+	h := md5.New()
+	_, err := io.Copy(h, r)
+	if err != nil {
+		return nil, err
+	}
+	return h.Sum(nil), nil
+}
+
+// generateRandomFile is creating a temporary file with the requested byte size
+func generateRandomFile(size int) (f *os.File, teardown func()) {
+	// create a tmp file
+	tmp, err := ioutil.TempFile("", "swarm-test")
+	if err != nil {
+		panic(err)
+	}
+
+	// callback for tmp file cleanup
+	teardown = func() {
+		tmp.Close()
+		os.Remove(tmp.Name())
+	}
+
+	buf := make([]byte, size)
+	_, err = rand.Read(buf)
+	if err != nil {
+		panic(err)
+	}
+	ioutil.WriteFile(tmp.Name(), buf, 0755)
+
+	return tmp, teardown
+}

cmd/swarm/upload.go

@@ -40,12 +40,13 @@ func upload(ctx *cli.Context) {
 	args := ctx.Args()
 	var (
 		bzzapi       = strings.TrimRight(ctx.GlobalString(SwarmApiFlag.Name), "/")
-		recursive    = ctx.GlobalBool(SwarmRecursiveUploadFlag.Name)
+		recursive    = ctx.GlobalBool(SwarmRecursiveFlag.Name)
 		wantManifest = ctx.GlobalBoolT(SwarmWantManifestFlag.Name)
 		defaultPath  = ctx.GlobalString(SwarmUploadDefaultPath.Name)
 		fromStdin    = ctx.GlobalBool(SwarmUpFromStdinFlag.Name)
 		mimeType     = ctx.GlobalString(SwarmUploadMimeType.Name)
 		client       = swarm.NewClient(bzzapi)
+		toEncrypt    = ctx.Bool(SwarmEncryptedFlag.Name)
 		file         string
 	)
 
@@ -76,7 +77,7 @@ func upload(ctx *cli.Context) {
 			utils.Fatalf("Error opening file: %s", err)
 		}
 		defer f.Close()
-		hash, err := client.UploadRaw(f, f.Size)
+		hash, err := client.UploadRaw(f, f.Size, toEncrypt)
 		if err != nil {
 			utils.Fatalf("Upload failed: %s", err)
 		}
@@ -97,7 +98,7 @@ func upload(ctx *cli.Context) {
 			if !recursive {
 				return "", errors.New("Argument is a directory and recursive upload is disabled")
 			}
-			return client.UploadDirectory(file, defaultPath, "")
+			return client.UploadDirectory(file, defaultPath, "", toEncrypt)
 		}
 	} else {
 		doUpload = func() (string, error) {
@@ -110,7 +111,7 @@ func upload(ctx *cli.Context) {
 				mimeType = detectMimeType(file)
 			}
 			f.ContentType = mimeType
-			return client.Upload(f, "")
+			return client.Upload(f, "", toEncrypt)
 		}
 	}
 	hash, err := doUpload()

cmd/swarm/upload_test.go

@@ -17,60 +17,259 @@
 package main
 
 import (
+	"bytes"
+	"flag"
+	"fmt"
 	"io"
 	"io/ioutil"
 	"net/http"
 	"os"
+	"path"
+	"path/filepath"
+	"strings"
 	"testing"
+	"time"
+
+	"github.com/ethereum/go-ethereum/log"
+	swarm "github.com/ethereum/go-ethereum/swarm/api/client"
+	colorable "github.com/mattn/go-colorable"
 )
 
+var loglevel = flag.Int("loglevel", 3, "verbosity of logs")
+
+func init() {
+	log.PrintOrigins(true)
+	log.Root().SetHandler(log.LvlFilterHandler(log.Lvl(*loglevel), log.StreamHandler(colorable.NewColorableStderr(), log.TerminalFormat(true))))
+}
+
 // TestCLISwarmUp tests that running 'swarm up' makes the resulting file
 // available from all nodes via the HTTP API
 func TestCLISwarmUp(t *testing.T) {
-	// start 3 node cluster
+	testCLISwarmUp(false, t)
-	t.Log("starting 3 node cluster")
+}
+func TestCLISwarmUpRecursive(t *testing.T) {
+	testCLISwarmUpRecursive(false, t)
+}
+
+// TestCLISwarmUpEncrypted tests that running 'swarm encrypted-up' makes the resulting file
+// available from all nodes via the HTTP API
+func TestCLISwarmUpEncrypted(t *testing.T) {
+	testCLISwarmUp(true, t)
+}
+func TestCLISwarmUpEncryptedRecursive(t *testing.T) {
+	testCLISwarmUpRecursive(true, t)
+}
+
+func testCLISwarmUp(toEncrypt bool, t *testing.T) {
+	log.Info("starting 3 node cluster")
 	cluster := newTestCluster(t, 3)
 	defer cluster.Shutdown()
 
 	// create a tmp file
 	tmp, err := ioutil.TempFile("", "swarm-test")
-	assertNil(t, err)
-	defer tmp.Close()
-	defer os.Remove(tmp.Name())
-	_, err = io.WriteString(tmp, "data")
-	assertNil(t, err)
-
-	// upload the file with 'swarm up' and expect a hash
-	t.Log("uploading file with 'swarm up'")
-	up := runSwarm(t, "--bzzapi", cluster.Nodes[0].URL, "up", tmp.Name())
-	_, matches := up.ExpectRegexp(`[a-f\d]{64}`)
-	up.ExpectExit()
-	hash := matches[0]
-	t.Logf("file uploaded with hash %s", hash)
-
-	// get the file from the HTTP API of each node
-	for _, node := range cluster.Nodes {
-		t.Logf("getting file from %s", node.Name)
-		res, err := http.Get(node.URL + "/bzz:/" + hash)
-		assertNil(t, err)
-		assertHTTPResponse(t, res, http.StatusOK, "data")
-	}
-}
-
-func assertNil(t *testing.T, err error) {
 	if err != nil {
 		t.Fatal(err)
 	}
+	defer tmp.Close()
+	defer os.Remove(tmp.Name())
+
+	// write data to file
+	data := "notsorandomdata"
+	_, err = io.WriteString(tmp, data)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	hashRegexp := `[a-f\d]{64}`
+	flags := []string{
+		"--bzzapi", cluster.Nodes[0].URL,
+		"up",
+		tmp.Name()}
+	if toEncrypt {
+		hashRegexp = `[a-f\d]{128}`
+		flags = []string{
+			"--bzzapi", cluster.Nodes[0].URL,
+			"up",
+			"--encrypt",
+			tmp.Name()}
+	}
+	// upload the file with 'swarm up' and expect a hash
+	log.Info(fmt.Sprintf("uploading file with 'swarm up'"))
+	up := runSwarm(t, flags...)
+	_, matches := up.ExpectRegexp(hashRegexp)
+	up.ExpectExit()
+	hash := matches[0]
+	log.Info("file uploaded", "hash", hash)
+
+	// get the file from the HTTP API of each node
+	for _, node := range cluster.Nodes {
+		log.Info("getting file from node", "node", node.Name)
+
+		res, err := http.Get(node.URL + "/bzz:/" + hash)
+		if err != nil {
+			t.Fatal(err)
+		}
+		defer res.Body.Close()
+
+		reply, err := ioutil.ReadAll(res.Body)
+		if err != nil {
+			t.Fatal(err)
+		}
+		if res.StatusCode != 200 {
+			t.Fatalf("expected HTTP status 200, got %s", res.Status)
+		}
+		if string(reply) != data {
+			t.Fatalf("expected HTTP body %q, got %q", data, reply)
+		}
+		log.Debug("verifying uploaded file using `swarm down`")
+		//try to get the content with `swarm down`
+		tmpDownload, err := ioutil.TempDir("", "swarm-test")
+		tmpDownload = path.Join(tmpDownload, "tmpfile.tmp")
+		if err != nil {
+			t.Fatal(err)
+		}
+		defer os.RemoveAll(tmpDownload)
+
+		bzzLocator := "bzz:/" + hash
+		flags = []string{
+			"--bzzapi", cluster.Nodes[0].URL,
+			"down",
+			bzzLocator,
+			tmpDownload,
+		}
+
+		down := runSwarm(t, flags...)
+		down.ExpectExit()
+
+		fi, err := os.Stat(tmpDownload)
+		if err != nil {
+			t.Fatalf("could not stat path: %v", err)
+		}
+
+		switch mode := fi.Mode(); {
+		case mode.IsRegular():
+			downloadedBytes, err := ioutil.ReadFile(tmpDownload)
+			if err != nil {
+				t.Fatalf("had an error reading the downloaded file: %v", err)
+			}
+			if !bytes.Equal(downloadedBytes, bytes.NewBufferString(data).Bytes()) {
+				t.Fatalf("retrieved data and posted data not equal!")
+			}
+
+		default:
+			t.Fatalf("expected to download regular file, got %s", fi.Mode())
+		}
+	}
+
+	timeout := time.Duration(2 * time.Second)
+	httpClient := http.Client{
+		Timeout: timeout,
+	}
+
+	// try to squeeze a timeout by getting an non-existent hash from each node
+	for _, node := range cluster.Nodes {
+		_, err := httpClient.Get(node.URL + "/bzz:/1023e8bae0f70be7d7b5f74343088ba408a218254391490c85ae16278e230340")
+		// we're speeding up the timeout here since netstore has a 60 seconds timeout on a request
+		if err != nil && !strings.Contains(err.Error(), "Client.Timeout exceeded while awaiting headers") {
+			t.Fatal(err)
+		}
+		// this is disabled since it takes 60s due to netstore timeout
+		// if res.StatusCode != 404 {
+		// 	t.Fatalf("expected HTTP status 404, got %s", res.Status)
+		// }
+	}
 }
 
-func assertHTTPResponse(t *testing.T, res *http.Response, expectedStatus int, expectedBody string) {
+func testCLISwarmUpRecursive(toEncrypt bool, t *testing.T) {
-	defer res.Body.Close()
+	fmt.Println("starting 3 node cluster")
-	if res.StatusCode != expectedStatus {
+	cluster := newTestCluster(t, 3)
-		t.Fatalf("expected HTTP status %d, got %s", expectedStatus, res.Status)
+	defer cluster.Shutdown()
+
+	tmpUploadDir, err := ioutil.TempDir("", "swarm-test")
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer os.RemoveAll(tmpUploadDir)
+	// create tmp files
+	data := "notsorandomdata"
+	for _, path := range []string{"tmp1", "tmp2"} {
+		if err := ioutil.WriteFile(filepath.Join(tmpUploadDir, path), bytes.NewBufferString(data).Bytes(), 0644); err != nil {
+			t.Fatal(err)
+		}
+	}
+
+	hashRegexp := `[a-f\d]{64}`
+	flags := []string{
+		"--bzzapi", cluster.Nodes[0].URL,
+		"--recursive",
+		"up",
+		tmpUploadDir}
+	if toEncrypt {
+		hashRegexp = `[a-f\d]{128}`
+		flags = []string{
+			"--bzzapi", cluster.Nodes[0].URL,
+			"--recursive",
+			"up",
+			"--encrypt",
+			tmpUploadDir}
+	}
+	// upload the file with 'swarm up' and expect a hash
+	log.Info(fmt.Sprintf("uploading file with 'swarm up'"))
+	up := runSwarm(t, flags...)
+	_, matches := up.ExpectRegexp(hashRegexp)
+	up.ExpectExit()
+	hash := matches[0]
+	log.Info("dir uploaded", "hash", hash)
+
+	// get the file from the HTTP API of each node
+	for _, node := range cluster.Nodes {
+		log.Info("getting file from node", "node", node.Name)
+		//try to get the content with `swarm down`
+		tmpDownload, err := ioutil.TempDir("", "swarm-test")
+		if err != nil {
+			t.Fatal(err)
+		}
+		defer os.RemoveAll(tmpDownload)
+		bzzLocator := "bzz:/" + hash
+		flagss := []string{}
+		flagss = []string{
+			"--bzzapi", cluster.Nodes[0].URL,
+			"down",
+			"--recursive",
+			bzzLocator,
+			tmpDownload,
+		}
+
+		fmt.Println("downloading from swarm with recursive")
+		down := runSwarm(t, flagss...)
+		down.ExpectExit()
+
+		files, err := ioutil.ReadDir(tmpDownload)
+		for _, v := range files {
+			fi, err := os.Stat(path.Join(tmpDownload, v.Name()))
+			if err != nil {
+				t.Fatalf("got an error: %v", err)
+			}
+
+			switch mode := fi.Mode(); {
+			case mode.IsRegular():
+				if file, err := swarm.Open(path.Join(tmpDownload, v.Name())); err != nil {
+					t.Fatalf("encountered an error opening the file returned from the CLI: %v", err)
+				} else {
+					ff := make([]byte, len(data))
+					io.ReadFull(file, ff)
+					buf := bytes.NewBufferString(data)
+
+					if !bytes.Equal(ff, buf.Bytes()) {
+						t.Fatalf("retrieved data and posted data not equal!")
+					}
+				}
+			default:
+				t.Fatalf("this shouldnt happen")
+			}
+		}
+		if err != nil {
+			t.Fatalf("could not list files at: %v", files)
 		}
-	data, err := ioutil.ReadAll(res.Body)
-	assertNil(t, err)
-	if string(data) != expectedBody {
-		t.Fatalf("expected HTTP body %q, got %q", expectedBody, data)
 	}
 }

cmd/utils/flags.go

@@ -27,6 +27,7 @@ import (
 	"runtime"
 	"strconv"
 	"strings"
+	"time"
 
 	"github.com/ethereum/go-ethereum/accounts"
 	"github.com/ethereum/go-ethereum/accounts/keystore"
@@ -48,6 +49,7 @@ import (
 	"github.com/ethereum/go-ethereum/les"
 	"github.com/ethereum/go-ethereum/log"
 	"github.com/ethereum/go-ethereum/metrics"
+	"github.com/ethereum/go-ethereum/metrics/influxdb"
 	"github.com/ethereum/go-ethereum/node"
 	"github.com/ethereum/go-ethereum/p2p"
 	"github.com/ethereum/go-ethereum/p2p/discover"
@@ -360,10 +362,6 @@ var (
 		Name:  "ethstats",
 		Usage: "Reporting URL of a ethstats service (nodename:secret@host:port)",
 	}
-	MetricsEnabledFlag = cli.BoolFlag{
-		Name:  metrics.MetricsEnabledFlag,
-		Usage: "Enable metrics collection and reporting",
-	}
 	FakePoWFlag = cli.BoolFlag{
 		Name:  "fakepow",
 		Usage: "Disables proof-of-work verification",
@@ -532,6 +530,45 @@ var (
 		Usage: "Minimum POW accepted",
 		Value: whisper.DefaultMinimumPoW,
 	}
+
+	// Metrics flags
+	MetricsEnabledFlag = cli.BoolFlag{
+		Name:  metrics.MetricsEnabledFlag,
+		Usage: "Enable metrics collection and reporting",
+	}
+	MetricsEnableInfluxDBFlag = cli.BoolFlag{
+		Name:  "metrics.influxdb",
+		Usage: "Enable metrics export/push to an external InfluxDB database",
+	}
+	MetricsInfluxDBEndpointFlag = cli.StringFlag{
+		Name:  "metrics.influxdb.endpoint",
+		Usage: "InfluxDB API endpoint to report metrics to",
+		Value: "http://localhost:8086",
+	}
+	MetricsInfluxDBDatabaseFlag = cli.StringFlag{
+		Name:  "metrics.influxdb.database",
+		Usage: "InfluxDB database name to push reported metrics to",
+		Value: "geth",
+	}
+	MetricsInfluxDBUsernameFlag = cli.StringFlag{
+		Name:  "metrics.influxdb.username",
+		Usage: "Username to authorize access to the database",
+		Value: "test",
+	}
+	MetricsInfluxDBPasswordFlag = cli.StringFlag{
+		Name:  "metrics.influxdb.password",
+		Usage: "Password to authorize access to the database",
+		Value: "test",
+	}
+	// The `host` tag is part of every measurement sent to InfluxDB. Queries on tags are faster in InfluxDB.
+	// It is used so that we can group all nodes and average a measurement across all of them, but also so
+	// that we can select a specific node and inspect its measurements.
+	// https://docs.influxdata.com/influxdb/v1.4/concepts/key_concepts/#tag-key
+	MetricsInfluxDBHostTagFlag = cli.StringFlag{
+		Name:  "metrics.influxdb.host.tag",
+		Usage: "InfluxDB `host` tag attached to all measurements",
+		Value: "localhost",
+	}
 )
 
 // MakeDataDir retrieves the currently requested data directory, terminating
@@ -961,7 +998,7 @@ func setEthash(ctx *cli.Context, cfg *eth.Config) {
 	}
 }
 
-// checkExclusive verifies that only a single isntance of the provided flags was
+// checkExclusive verifies that only a single instance of the provided flags was
 // set by the user. Each flag might optionally be followed by a string type to
 // specialize it further.
 func checkExclusive(ctx *cli.Context, args ...interface{}) {
@@ -1184,6 +1221,27 @@ func SetupNetwork(ctx *cli.Context) {
 	params.TargetGasLimit = ctx.GlobalUint64(TargetGasLimitFlag.Name)
 }
 
+func SetupMetrics(ctx *cli.Context) {
+	if metrics.Enabled {
+		log.Info("Enabling metrics collection")
+		var (
+			enableExport = ctx.GlobalBool(MetricsEnableInfluxDBFlag.Name)
+			endpoint     = ctx.GlobalString(MetricsInfluxDBEndpointFlag.Name)
+			database     = ctx.GlobalString(MetricsInfluxDBDatabaseFlag.Name)
+			username     = ctx.GlobalString(MetricsInfluxDBUsernameFlag.Name)
+			password     = ctx.GlobalString(MetricsInfluxDBPasswordFlag.Name)
+			hosttag      = ctx.GlobalString(MetricsInfluxDBHostTagFlag.Name)
+		)
+
+		if enableExport {
+			log.Info("Enabling metrics export to InfluxDB")
+			go influxdb.InfluxDBWithTags(metrics.DefaultRegistry, 10*time.Second, endpoint, database, username, password, "geth.", map[string]string{
+				"host": hosttag,
+			})
+		}
+	}
+}
+
 // MakeChainDatabase open an LevelDB using the flags passed to the client and will hard crash if it fails.
 func MakeChainDatabase(ctx *cli.Context, stack *node.Node) ethdb.Database {
 	var (

consensus/clique/api.go

@@ -75,7 +75,7 @@ func (api *API) GetSigners(number *rpc.BlockNumber) ([]common.Address, error) {
 	return snap.signers(), nil
 }
 
-// GetSignersAtHash retrieves the state snapshot at a given block.
+// GetSignersAtHash retrieves the list of authorized signers at the specified block.
 func (api *API) GetSignersAtHash(hash common.Hash) ([]common.Address, error) {
 	header := api.chain.GetHeaderByHash(hash)
 	if header == nil {

consensus/ethash/ethash.go

@@ -389,7 +389,7 @@ type Config struct {
 	PowMode        Mode
 }
 
-// Ethash is a consensus engine based on proot-of-work implementing the ethash
+// Ethash is a consensus engine based on proof-of-work implementing the ethash
 // algorithm.
 type Ethash struct {
 	config Config

core/blockchain.go

@@ -269,8 +269,8 @@ func (bc *BlockChain) SetHead(head uint64) error {
 	defer bc.mu.Unlock()
 
 	// Rewind the header chain, deleting all block bodies until then
-	delFn := func(hash common.Hash, num uint64) {
+	delFn := func(db rawdb.DatabaseDeleter, hash common.Hash, num uint64) {
-		rawdb.DeleteBody(bc.db, hash, num)
+		rawdb.DeleteBody(db, hash, num)
 	}
 	bc.hc.SetHead(head, delFn)
 	currentHeader := bc.hc.CurrentHeader()
@@ -672,7 +672,7 @@ func (bc *BlockChain) Stop() {
 			}
 		}
 		for !bc.triegc.Empty() {
-			triedb.Dereference(bc.triegc.PopItem().(common.Hash), common.Hash{})
+			triedb.Dereference(bc.triegc.PopItem().(common.Hash))
 		}
 		if size, _ := triedb.Size(); size != 0 {
 			log.Error("Dangling trie nodes after full cleanup")
@@ -947,7 +947,7 @@ func (bc *BlockChain) WriteBlockWithState(block *types.Block, receipts []*types.
 					bc.triegc.Push(root, number)
 					break
 				}
-				triedb.Dereference(root.(common.Hash), common.Hash{})
+				triedb.Dereference(root.(common.Hash))
 			}
 		}
 	}
@@ -1340,9 +1340,12 @@ func (bc *BlockChain) reorg(oldBlock, newBlock *types.Block) error {
 	diff := types.TxDifference(deletedTxs, addedTxs)
 	// When transactions get deleted from the database that means the
 	// receipts that were created in the fork must also be deleted
+	batch := bc.db.NewBatch()
 	for _, tx := range diff {
-		rawdb.DeleteTxLookupEntry(bc.db, tx.Hash())
+		rawdb.DeleteTxLookupEntry(batch, tx.Hash())
 	}
+	batch.Write()
+
 	if len(deletedLogs) > 0 {
 		go bc.rmLogsFeed.Send(RemovedLogsEvent{deletedLogs})
 	}

core/blockchain_test.go

@@ -25,6 +25,7 @@ import (
 	"time"
 
 	"github.com/ethereum/go-ethereum/common"
+	"github.com/ethereum/go-ethereum/consensus"
 	"github.com/ethereum/go-ethereum/consensus/ethash"
 	"github.com/ethereum/go-ethereum/core/rawdb"
 	"github.com/ethereum/go-ethereum/core/state"
@@ -35,6 +36,39 @@ import (
 	"github.com/ethereum/go-ethereum/params"
 )
 
+// So we can deterministically seed different blockchains
+var (
+	canonicalSeed = 1
+	forkSeed      = 2
+)
+
+// newCanonical creates a chain database, and injects a deterministic canonical
+// chain. Depending on the full flag, if creates either a full block chain or a
+// header only chain.
+func newCanonical(engine consensus.Engine, n int, full bool) (ethdb.Database, *BlockChain, error) {
+	var (
+		db      = ethdb.NewMemDatabase()
+		genesis = new(Genesis).MustCommit(db)
+	)
+
+	// Initialize a fresh chain with only a genesis block
+	blockchain, _ := NewBlockChain(db, nil, params.AllEthashProtocolChanges, engine, vm.Config{})
+	// Create and inject the requested chain
+	if n == 0 {
+		return db, blockchain, nil
+	}
+	if full {
+		// Full block-chain requested
+		blocks := makeBlockChain(genesis, n, engine, db, canonicalSeed)
+		_, err := blockchain.InsertChain(blocks)
+		return db, blockchain, err
+	}
+	// Header-only chain requested
+	headers := makeHeaderChain(genesis.Header(), n, engine, db, canonicalSeed)
+	_, err := blockchain.InsertHeaderChain(headers, 1)
+	return db, blockchain, err
+}
+
 // Test fork of length N starting from block i
 func testFork(t *testing.T, blockchain *BlockChain, i, n int, full bool, comparator func(td1, td2 *big.Int)) {
 	// Copy old chain up to #i into a new db
@@ -1279,8 +1313,8 @@ func TestTrieForkGC(t *testing.T) {
 	}
 	// Dereference all the recent tries and ensure no past trie is left in
 	for i := 0; i < triesInMemory; i++ {
-		chain.stateCache.TrieDB().Dereference(blocks[len(blocks)-1-i].Root(), common.Hash{})
+		chain.stateCache.TrieDB().Dereference(blocks[len(blocks)-1-i].Root())
-		chain.stateCache.TrieDB().Dereference(forks[len(blocks)-1-i].Root(), common.Hash{})
+		chain.stateCache.TrieDB().Dereference(forks[len(blocks)-1-i].Root())
 	}
 	if len(chain.stateCache.TrieDB().Nodes()) > 0 {
 		t.Fatalf("stale tries still alive after garbase collection")

core/chain_makers.go

@@ -30,12 +30,6 @@ import (
 	"github.com/ethereum/go-ethereum/params"
 )
 
-// So we can deterministically seed different blockchains
-var (
-	canonicalSeed = 1
-	forkSeed      = 2
-)
-
 // BlockGen creates blocks for testing.
 // See GenerateChain for a detailed explanation.
 type BlockGen struct {
@@ -252,33 +246,6 @@ func makeHeader(chain consensus.ChainReader, parent *types.Block, state *state.S
 	}
 }
 
-// newCanonical creates a chain database, and injects a deterministic canonical
-// chain. Depending on the full flag, if creates either a full block chain or a
-// header only chain.
-func newCanonical(engine consensus.Engine, n int, full bool) (ethdb.Database, *BlockChain, error) {
-	var (
-		db      = ethdb.NewMemDatabase()
-		genesis = new(Genesis).MustCommit(db)
-	)
-
-	// Initialize a fresh chain with only a genesis block
-	blockchain, _ := NewBlockChain(db, nil, params.AllEthashProtocolChanges, engine, vm.Config{})
-	// Create and inject the requested chain
-	if n == 0 {
-		return db, blockchain, nil
-	}
-	if full {
-		// Full block-chain requested
-		blocks := makeBlockChain(genesis, n, engine, db, canonicalSeed)
-		_, err := blockchain.InsertChain(blocks)
-		return db, blockchain, err
-	}
-	// Header-only chain requested
-	headers := makeHeaderChain(genesis.Header(), n, engine, db, canonicalSeed)
-	_, err := blockchain.InsertHeaderChain(headers, 1)
-	return db, blockchain, err
-}
-
 // makeHeaderChain creates a deterministic chain of headers rooted at parent.
 func makeHeaderChain(parent *types.Header, n int, engine consensus.Engine, db ethdb.Database, seed int) []*types.Header {
 	blocks := makeBlockChain(types.NewBlockWithHeader(parent), n, engine, db, seed)

core/headerchain.go

@@ -156,13 +156,16 @@ func (hc *HeaderChain) WriteHeader(header *types.Header) (status WriteStatus, er
 	// Please refer to http://www.cs.cornell.edu/~ie53/publications/btcProcFC.pdf
 	if externTd.Cmp(localTd) > 0 || (externTd.Cmp(localTd) == 0 && mrand.Float64() < 0.5) {
 		// Delete any canonical number assignments above the new head
+		batch := hc.chainDb.NewBatch()
 		for i := number + 1; ; i++ {
 			hash := rawdb.ReadCanonicalHash(hc.chainDb, i)
 			if hash == (common.Hash{}) {
 				break
 			}
-			rawdb.DeleteCanonicalHash(hc.chainDb, i)
+			rawdb.DeleteCanonicalHash(batch, i)
 		}
+		batch.Write()
+
 		// Overwrite any stale canonical number assignments
 		var (
 			headHash   = header.ParentHash
@@ -438,7 +441,7 @@ func (hc *HeaderChain) SetCurrentHeader(head *types.Header) {
 
 // DeleteCallback is a callback function that is called by SetHead before
 // each header is deleted.
-type DeleteCallback func(common.Hash, uint64)
+type DeleteCallback func(rawdb.DatabaseDeleter, common.Hash, uint64)
 
 // SetHead rewinds the local chain to a new head. Everything above the new head
 // will be deleted and the new one set.
@@ -448,22 +451,24 @@ func (hc *HeaderChain) SetHead(head uint64, delFn DeleteCallback) {
 	if hdr := hc.CurrentHeader(); hdr != nil {
 		height = hdr.Number.Uint64()
 	}
-
+	batch := hc.chainDb.NewBatch()
 	for hdr := hc.CurrentHeader(); hdr != nil && hdr.Number.Uint64() > head; hdr = hc.CurrentHeader() {
 		hash := hdr.Hash()
 		num := hdr.Number.Uint64()
 		if delFn != nil {
-			delFn(hash, num)
+			delFn(batch, hash, num)
 		}
-		rawdb.DeleteHeader(hc.chainDb, hash, num)
+		rawdb.DeleteHeader(batch, hash, num)
-		rawdb.DeleteTd(hc.chainDb, hash, num)
+		rawdb.DeleteTd(batch, hash, num)
 
 		hc.currentHeader.Store(hc.GetHeader(hdr.ParentHash, hdr.Number.Uint64()-1))
 	}
 	// Roll back the canonical chain numbering
 	for i := height; i > head; i-- {
-		rawdb.DeleteCanonicalHash(hc.chainDb, i)
+		rawdb.DeleteCanonicalHash(batch, i)
 	}
+	batch.Write()
+
 	// Clear out any stale content from the caches
 	hc.headerCache.Purge()
 	hc.tdCache.Purge()

core/state/statedb.go

@@ -596,7 +596,7 @@ func (s *StateDB) Commit(deleteEmptyObjects bool) (root common.Hash, err error)
 		case isDirty:
 			// Write any contract code associated with the state object
 			if stateObject.code != nil && stateObject.dirtyCode {
-				s.db.TrieDB().Insert(common.BytesToHash(stateObject.CodeHash()), stateObject.code)
+				s.db.TrieDB().InsertBlob(common.BytesToHash(stateObject.CodeHash()), stateObject.code)
 				stateObject.dirtyCode = false
 			}
 			// Write any storage changes in the state object to its storage trie.

core/types/transaction.go

@@ -35,15 +35,6 @@ var (
 	ErrInvalidSig = errors.New("invalid transaction v, r, s values")
 )
 
-// deriveSigner makes a *best* guess about which signer to use.
-func deriveSigner(V *big.Int) Signer {
-	if V.Sign() != 0 && isProtectedV(V) {
-		return NewEIP155Signer(deriveChainId(V))
-	} else {
-		return HomesteadSigner{}
-	}
-}
-
 type Transaction struct {
 	data txdata
 	// caches
@@ -275,9 +266,9 @@ func (s Transactions) GetRlp(i int) []byte {
 	return enc
 }
 
-// TxDifference returns a new set t which is the difference between a to b.
+// TxDifference returns a new set which is the difference between a and b.
-func TxDifference(a, b Transactions) (keep Transactions) {
+func TxDifference(a, b Transactions) Transactions {
-	keep = make(Transactions, 0, len(a))
+	keep := make(Transactions, 0, len(a))
 
 	remove := make(map[common.Hash]struct{})
 	for _, tx := range b {

core/vm/errors.go

@@ -18,6 +18,7 @@ package vm
 
 import "errors"
 
+// List execution errors
 var (
 	ErrOutOfGas                 = errors.New("out of gas")
 	ErrCodeStoreOutOfGas        = errors.New("contract creation code storage out of gas")

core/vm/evm.go

@@ -31,7 +31,9 @@ import (
 var emptyCodeHash = crypto.Keccak256Hash(nil)
 
 type (
+	// CanTransferFunc is the signature of a transfer guard function
 	CanTransferFunc func(StateDB, common.Address, *big.Int) bool
+	// TransferFunc is the signature of a transfer function
 	TransferFunc func(StateDB, common.Address, common.Address, *big.Int)
 	// GetHashFunc returns the nth block hash in the blockchain
 	// and is used by the BLOCKHASH EVM op code.

core/vm/gas.go

@@ -22,6 +22,7 @@ import (
 	"github.com/ethereum/go-ethereum/params"
 )
 
+// Gas costs
 const (
 	GasQuickStep   uint64 = 2
 	GasFastestStep uint64 = 3

core/vm/instructions.go

@@ -861,7 +861,7 @@ func makeDup(size int64) executionFunc {
 // make swap instruction function
 func makeSwap(size int64) executionFunc {
 	// switch n + 1 otherwise n would be swapped with n
-	size += 1
+	size++
 	return func(pc *uint64, evm *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) {
 		stack.swap(int(size))
 		return nil, nil

core/vm/instructions_test.go

@@ -36,6 +36,7 @@ func testTwoOperandOp(t *testing.T, tests []twoOperandTest, opFn func(pc *uint64
 		stack = newstack()
 		pc    = uint64(0)
 	)
+	env.interpreter.intPool = poolOfIntPools.get()
 	for i, test := range tests {
 		x := new(big.Int).SetBytes(common.Hex2Bytes(test.x))
 		shift := new(big.Int).SetBytes(common.Hex2Bytes(test.y))
@@ -64,6 +65,7 @@ func testTwoOperandOp(t *testing.T, tests []twoOperandTest, opFn func(pc *uint64
 			}
 		}
 	}
+	poolOfIntPools.put(env.interpreter.intPool)
 }
 
 func TestByteOp(t *testing.T) {
@@ -71,6 +73,7 @@ func TestByteOp(t *testing.T) {
 		env   = NewEVM(Context{}, nil, params.TestChainConfig, Config{})
 		stack = newstack()
 	)
+	env.interpreter.intPool = poolOfIntPools.get()
 	tests := []struct {
 		v        string
 		th       uint64
@@ -97,6 +100,7 @@ func TestByteOp(t *testing.T) {
 			t.Fatalf("Expected  [%v] %v:th byte to be %v, was %v.", test.v, test.th, test.expected, actual)
 		}
 	}
+	poolOfIntPools.put(env.interpreter.intPool)
 }
 
 func TestSHL(t *testing.T) {
@@ -432,6 +436,7 @@ func TestOpMstore(t *testing.T) {
 		stack = newstack()
 		mem   = NewMemory()
 	)
+	env.interpreter.intPool = poolOfIntPools.get()
 	mem.Resize(64)
 	pc := uint64(0)
 	v := "abcdef00000000000000abba000000000deaf000000c0de00100000000133700"
@@ -445,6 +450,7 @@ func TestOpMstore(t *testing.T) {
 	if common.Bytes2Hex(mem.Get(0, 32)) != "0000000000000000000000000000000000000000000000000000000000000001" {
 		t.Fatalf("Mstore failed to overwrite previous value")
 	}
+	poolOfIntPools.put(env.interpreter.intPool)
 }
 
 func BenchmarkOpMstore(bench *testing.B) {

core/vm/interpreter.go

@@ -77,7 +77,6 @@ func NewInterpreter(evm *EVM, cfg Config) *Interpreter {
 		evm:      evm,
 		cfg:      cfg,
 		gasTable: evm.ChainConfig().GasTable(evm.BlockNumber),
-		intPool:  newIntPool(),
 	}
 }
 
@@ -104,6 +103,14 @@ func (in *Interpreter) enforceRestrictions(op OpCode, operation operation, stack
 // considered a revert-and-consume-all-gas operation except for
 // errExecutionReverted which means revert-and-keep-gas-left.
 func (in *Interpreter) Run(contract *Contract, input []byte) (ret []byte, err error) {
+	if in.intPool == nil {
+		in.intPool = poolOfIntPools.get()
+		defer func() {
+			poolOfIntPools.put(in.intPool)
+			in.intPool = nil
+		}()
+	}
+
 	// Increment the call depth which is restricted to 1024
 	in.evm.depth++
 	defer func() { in.evm.depth-- }()
@@ -133,6 +140,9 @@ func (in *Interpreter) Run(contract *Contract, input []byte) (ret []byte, err er
 	)
 	contract.Input = input
 
+	// Reclaim the stack as an int pool when the execution stops
+	defer func() { in.intPool.put(stack.data...) }()
+
 	if in.cfg.Debug {
 		defer func() {
 			if err != nil {

core/vm/intpool.go

@@ -16,7 +16,10 @@
 
 package vm
 
-import "math/big"
+import (
+	"math/big"
+	"sync"
+)
 
 var checkVal = big.NewInt(-42)
 
@@ -65,3 +68,39 @@ func (p *intPool) put(is ...*big.Int) {
 		p.pool.push(i)
 	}
 }
+
+// The intPool pool's default capacity
+const poolDefaultCap = 25
+
+// intPoolPool manages a pool of intPools.
+type intPoolPool struct {
+	pools []*intPool
+	lock  sync.Mutex
+}
+
+var poolOfIntPools = &intPoolPool{
+	pools: make([]*intPool, 0, poolDefaultCap),
+}
+
+// get is looking for an available pool to return.
+func (ipp *intPoolPool) get() *intPool {
+	ipp.lock.Lock()
+	defer ipp.lock.Unlock()
+
+	if len(poolOfIntPools.pools) > 0 {
+		ip := ipp.pools[len(ipp.pools)-1]
+		ipp.pools = ipp.pools[:len(ipp.pools)-1]
+		return ip
+	}
+	return newIntPool()
+}
+
+// put a pool that has been allocated with get.
+func (ipp *intPoolPool) put(ip *intPool) {
+	ipp.lock.Lock()
+	defer ipp.lock.Unlock()
+
+	if len(ipp.pools) < cap(ipp.pools) {
+		ipp.pools = append(ipp.pools, ip)
+	}
+}

core/vm/intpool_test.go

@@ -0,0 +1,55 @@
+// Copyright 2018 The go-ethereum Authors
+// This file is part of the go-ethereum library.
+//
+// The go-ethereum library is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Lesser General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// The go-ethereum library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public License
+// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
+
+package vm
+
+import (
+	"testing"
+)
+
+func TestIntPoolPoolGet(t *testing.T) {
+	poolOfIntPools.pools = make([]*intPool, 0, poolDefaultCap)
+
+	nip := poolOfIntPools.get()
+	if nip == nil {
+		t.Fatalf("Invalid pool allocation")
+	}
+}
+
+func TestIntPoolPoolPut(t *testing.T) {
+	poolOfIntPools.pools = make([]*intPool, 0, poolDefaultCap)
+
+	nip := poolOfIntPools.get()
+	if len(poolOfIntPools.pools) != 0 {
+		t.Fatalf("Pool got added to list when none should have been")
+	}
+
+	poolOfIntPools.put(nip)
+	if len(poolOfIntPools.pools) == 0 {
+		t.Fatalf("Pool did not get added to list when one should have been")
+	}
+}
+
+func TestIntPoolPoolReUse(t *testing.T) {
+	poolOfIntPools.pools = make([]*intPool, 0, poolDefaultCap)
+	nip := poolOfIntPools.get()
+	poolOfIntPools.put(nip)
+	poolOfIntPools.get()
+
+	if len(poolOfIntPools.pools) != 0 {
+		t.Fatalf("Invalid number of pools. Got %d, expected %d", len(poolOfIntPools.pools), 0)
+	}
+}

core/vm/jump_table.go

@@ -51,17 +51,17 @@ type operation struct {
 }
 
 var (
-	frontierInstructionSet       = NewFrontierInstructionSet()
+	frontierInstructionSet       = newFrontierInstructionSet()
-	homesteadInstructionSet      = NewHomesteadInstructionSet()
+	homesteadInstructionSet      = newHomesteadInstructionSet()
-	byzantiumInstructionSet      = NewByzantiumInstructionSet()
+	byzantiumInstructionSet      = newByzantiumInstructionSet()
-	constantinopleInstructionSet = NewConstantinopleInstructionSet()
+	constantinopleInstructionSet = newConstantinopleInstructionSet()
 )
 
 // NewConstantinopleInstructionSet returns the frontier, homestead
 // byzantium and contantinople instructions.
-func NewConstantinopleInstructionSet() [256]operation {
+func newConstantinopleInstructionSet() [256]operation {
 	// instructions that can be executed during the byzantium phase.
-	instructionSet := NewByzantiumInstructionSet()
+	instructionSet := newByzantiumInstructionSet()
 	instructionSet[SHL] = operation{
 		execute:       opSHL,
 		gasCost:       constGasFunc(GasFastestStep),
@@ -85,9 +85,9 @@ func NewConstantinopleInstructionSet() [256]operation {
 
 // NewByzantiumInstructionSet returns the frontier, homestead and
 // byzantium instructions.
-func NewByzantiumInstructionSet() [256]operation {
+func newByzantiumInstructionSet() [256]operation {
 	// instructions that can be executed during the homestead phase.
-	instructionSet := NewHomesteadInstructionSet()
+	instructionSet := newHomesteadInstructionSet()
 	instructionSet[STATICCALL] = operation{
 		execute:       opStaticCall,
 		gasCost:       gasStaticCall,
@@ -123,8 +123,8 @@ func NewByzantiumInstructionSet() [256]operation {
 
 // NewHomesteadInstructionSet returns the frontier and homestead
 // instructions that can be executed during the homestead phase.
-func NewHomesteadInstructionSet() [256]operation {
+func newHomesteadInstructionSet() [256]operation {
-	instructionSet := NewFrontierInstructionSet()
+	instructionSet := newFrontierInstructionSet()
 	instructionSet[DELEGATECALL] = operation{
 		execute:       opDelegateCall,
 		gasCost:       gasDelegateCall,
@@ -138,7 +138,7 @@ func NewHomesteadInstructionSet() [256]operation {
 
 // NewFrontierInstructionSet returns the frontier instructions
 // that can be executed during the frontier phase.
-func NewFrontierInstructionSet() [256]operation {
+func newFrontierInstructionSet() [256]operation {
 	return [256]operation{
 		STOP: {
 			execute:       opStop,

core/vm/logger.go

@@ -29,8 +29,10 @@ import (
 	"github.com/ethereum/go-ethereum/core/types"
 )
 
+// Storage represents a contract's storage.
 type Storage map[common.Hash]common.Hash
 
+// Copy duplicates the current storage.
 func (s Storage) Copy() Storage {
 	cpy := make(Storage)
 	for key, value := range s {
@@ -76,10 +78,12 @@ type structLogMarshaling struct {
 	ErrorString string `json:"error"`  // adds call to ErrorString() in MarshalJSON
 }
 
+// OpName formats the operand name in a human-readable format.
 func (s *StructLog) OpName() string {
 	return s.Op.String()
 }
 
+// ErrorString formats the log's error as a string.
 func (s *StructLog) ErrorString() string {
 	if s.Err != nil {
 		return s.Err.Error()
@@ -124,6 +128,7 @@ func NewStructLogger(cfg *LogConfig) *StructLogger {
 	return logger
 }
 
+// CaptureStart implements the Tracer interface to initialize the tracing operation.
 func (l *StructLogger) CaptureStart(from common.Address, to common.Address, create bool, input []byte, gas uint64, value *big.Int) error {
 	return nil
 }
@@ -178,10 +183,13 @@ func (l *StructLogger) CaptureState(env *EVM, pc uint64, op OpCode, gas, cost ui
 	return nil
 }
 
+// CaptureFault implements the Tracer interface to trace an execution fault
+// while running an opcode.
 func (l *StructLogger) CaptureFault(env *EVM, pc uint64, op OpCode, gas, cost uint64, memory *Memory, stack *Stack, contract *Contract, depth int, err error) error {
 	return nil
 }
 
+// CaptureEnd is called after the call finishes to finalize the tracing.
 func (l *StructLogger) CaptureEnd(output []byte, gasUsed uint64, t time.Duration, err error) error {
 	l.output = output
 	l.err = err

core/vm/memory.go

@@ -29,6 +29,7 @@ type Memory struct {
 	lastGasCost uint64
 }
 
+// NewMemory returns a new memory memory model.
 func NewMemory() *Memory {
 	return &Memory{}
 }
@@ -107,6 +108,7 @@ func (m *Memory) Data() []byte {
 	return m.store
 }
 
+// Print dumps the content of the memory.
 func (m *Memory) Print() {
 	fmt.Printf("### mem %d bytes ###\n", len(m.store))
 	if len(m.store) > 0 {

core/vm/memory_table.go

@@ -65,12 +65,6 @@ func memoryCall(stack *Stack) *big.Int {
 	return math.BigMax(x, y)
 }
 
-func memoryCallCode(stack *Stack) *big.Int {
-	x := calcMemSize(stack.Back(5), stack.Back(6))
-	y := calcMemSize(stack.Back(3), stack.Back(4))
-
-	return math.BigMax(x, y)
-}
 func memoryDelegateCall(stack *Stack) *big.Int {
 	x := calcMemSize(stack.Back(4), stack.Back(5))
 	y := calcMemSize(stack.Back(2), stack.Back(3))

core/vm/opcodes.go

@@ -23,6 +23,7 @@ import (
 // OpCode is an EVM opcode
 type OpCode byte
 
+// IsPush specifies if an opcode is a PUSH opcode.
 func (op OpCode) IsPush() bool {
 	switch op {
 	case PUSH1, PUSH2, PUSH3, PUSH4, PUSH5, PUSH6, PUSH7, PUSH8, PUSH9, PUSH10, PUSH11, PUSH12, PUSH13, PUSH14, PUSH15, PUSH16, PUSH17, PUSH18, PUSH19, PUSH20, PUSH21, PUSH22, PUSH23, PUSH24, PUSH25, PUSH26, PUSH27, PUSH28, PUSH29, PUSH30, PUSH31, PUSH32:
@@ -31,12 +32,13 @@ func (op OpCode) IsPush() bool {
 	return false
 }
 
+// IsStaticJump specifies if an opcode is JUMP.
 func (op OpCode) IsStaticJump() bool {
 	return op == JUMP
 }
 
+// 0x0 range - arithmetic ops.
 const (
-	// 0x0 range - arithmetic ops
 	STOP OpCode = iota
 	ADD
 	MUL
@@ -51,6 +53,7 @@ const (
 	SIGNEXTEND
 )
 
+// 0x10 range - comparison ops.
 const (
 	LT OpCode = iota + 0x10
 	GT
@@ -70,8 +73,8 @@ const (
 	SHA3 = 0x20
 )
 
+// 0x30 range - closure state.
 const (
-	// 0x30 range - closure state
 	ADDRESS OpCode = 0x30 + iota
 	BALANCE
 	ORIGIN
@@ -89,8 +92,8 @@ const (
 	RETURNDATACOPY
 )
 
+// 0x40 range - block operations.
 const (
-	// 0x40 range - block operations
 	BLOCKHASH OpCode = 0x40 + iota
 	COINBASE
 	TIMESTAMP
@@ -99,8 +102,8 @@ const (
 	GASLIMIT
 )
 
+// 0x50 range - 'storage' and execution.
 const (
-	// 0x50 range - 'storage' and execution
 	POP OpCode = 0x50 + iota
 	MLOAD
 	MSTORE
@@ -115,8 +118,8 @@ const (
 	JUMPDEST
 )
 
+// 0x60 range.
 const (
-	// 0x60 range
 	PUSH1 OpCode = 0x60 + iota
 	PUSH2
 	PUSH3
@@ -183,6 +186,7 @@ const (
 	SWAP16
 )
 
+// 0xa0 range - logging ops.
 const (
 	LOG0 OpCode = 0xa0 + iota
 	LOG1
@@ -191,15 +195,15 @@ const (
 	LOG4
 )
 
-// unofficial opcodes used for parsing
+// unofficial opcodes used for parsing.
 const (
 	PUSH OpCode = 0xb0 + iota
 	DUP
 	SWAP
 )
 
+// 0xf0 range - closures.
 const (
-	// 0xf0 range - closures
 	CREATE OpCode = 0xf0 + iota
 	CALL
 	CALLCODE
@@ -211,9 +215,9 @@ const (
 	SELFDESTRUCT = 0xff
 )
 
-// Since the opcodes aren't all in order we can't use a regular slice
+// Since the opcodes aren't all in order we can't use a regular slice.
 var opCodeToString = map[OpCode]string{
-	// 0x0 range - arithmetic ops
+	// 0x0 range - arithmetic ops.
 	STOP:       "STOP",
 	ADD:        "ADD",
 	MUL:        "MUL",
@@ -232,7 +236,7 @@ var opCodeToString = map[OpCode]string{
 	ISZERO:     "ISZERO",
 	SIGNEXTEND: "SIGNEXTEND",
 
-	// 0x10 range - bit ops
+	// 0x10 range - bit ops.
 	AND:    "AND",
 	OR:     "OR",
 	XOR:    "XOR",
@@ -243,10 +247,10 @@ var opCodeToString = map[OpCode]string{
 	ADDMOD: "ADDMOD",
 	MULMOD: "MULMOD",
 
-	// 0x20 range - crypto
+	// 0x20 range - crypto.
 	SHA3: "SHA3",
 
-	// 0x30 range - closure state
+	// 0x30 range - closure state.
 	ADDRESS:        "ADDRESS",
 	BALANCE:        "BALANCE",
 	ORIGIN:         "ORIGIN",
@@ -263,7 +267,7 @@ var opCodeToString = map[OpCode]string{
 	RETURNDATASIZE: "RETURNDATASIZE",
 	RETURNDATACOPY: "RETURNDATACOPY",
 
-	// 0x40 range - block operations
+	// 0x40 range - block operations.
 	BLOCKHASH:  "BLOCKHASH",
 	COINBASE:   "COINBASE",
 	TIMESTAMP:  "TIMESTAMP",
@@ -271,7 +275,7 @@ var opCodeToString = map[OpCode]string{
 	DIFFICULTY: "DIFFICULTY",
 	GASLIMIT:   "GASLIMIT",
 
-	// 0x50 range - 'storage' and execution
+	// 0x50 range - 'storage' and execution.
 	POP: "POP",
 	//DUP:     "DUP",
 	//SWAP:    "SWAP",
@@ -287,7 +291,7 @@ var opCodeToString = map[OpCode]string{
 	GAS:      "GAS",
 	JUMPDEST: "JUMPDEST",
 
-	// 0x60 range - push
+	// 0x60 range - push.
 	PUSH1:  "PUSH1",
 	PUSH2:  "PUSH2",
 	PUSH3:  "PUSH3",
@@ -360,7 +364,7 @@ var opCodeToString = map[OpCode]string{
 	LOG3:   "LOG3",
 	LOG4:   "LOG4",
 
-	// 0xf0 range
+	// 0xf0 range.
 	CREATE:       "CREATE",
 	CALL:         "CALL",
 	RETURN:       "RETURN",
@@ -524,6 +528,7 @@ var stringToOp = map[string]OpCode{
 	"SELFDESTRUCT":   SELFDESTRUCT,
 }
 
+// StringToOp finds the opcode whose name is stored in `str`.
 func StringToOp(str string) OpCode {
 	return stringToOp[str]
 }

core/vm/stack.go

@@ -21,7 +21,7 @@ import (
 	"math/big"
 )
 
-// stack is an object for basic stack operations. Items popped to the stack are
+// Stack is an object for basic stack operations. Items popped to the stack are
 // expected to be changed and modified. stack does not take care of adding newly
 // initialised objects.
 type Stack struct {
@@ -32,6 +32,7 @@ func newstack() *Stack {
 	return &Stack{data: make([]*big.Int, 0, 1024)}
 }
 
+// Data returns the underlying big.Int array.
 func (st *Stack) Data() []*big.Int {
 	return st.data
 }
@@ -80,6 +81,7 @@ func (st *Stack) require(n int) error {
 	return nil
 }
 
+// Print dumps the content of the stack
 func (st *Stack) Print() {
 	fmt.Println("### stack ###")
 	if len(st.data) > 0 {

eth/api_tracer.go

@@ -297,7 +297,7 @@ func (api *PrivateDebugAPI) traceChain(ctx context.Context, start, end *types.Bl
 				database.TrieDB().Reference(root, common.Hash{})
 			}
 			// Dereference all past tries we ourselves are done working with
-			database.TrieDB().Dereference(proot, common.Hash{})
+			database.TrieDB().Dereference(proot)
 			proot = root
 
 			// TODO(karalabe): Do we need the preimages? Won't they accumulate too much?
@@ -320,7 +320,7 @@ func (api *PrivateDebugAPI) traceChain(ctx context.Context, start, end *types.Bl
 			done[uint64(result.Block)] = result
 
 			// Dereference any paret tries held in memory by this task
-			database.TrieDB().Dereference(res.rootref, common.Hash{})
+			database.TrieDB().Dereference(res.rootref)
 
 			// Stream completed traces to the user, aborting on the first error
 			for result, ok := done[next]; ok; result, ok = done[next] {
@@ -526,7 +526,7 @@ func (api *PrivateDebugAPI) computeStateDB(block *types.Block, reexec uint64) (*
 			return nil, err
 		}
 		database.TrieDB().Reference(root, common.Hash{})
-		database.TrieDB().Dereference(proot, common.Hash{})
+		database.TrieDB().Dereference(proot)
 		proot = root
 	}
 	nodes, imgs := database.TrieDB().Size()

eth/tracers/internal/tracers/4byte_tracer.js

@@ -60,7 +60,7 @@
 			return;
 		}
 		// Skip any pre-compile invocations, those are just fancy opcodes
-		if (isPrecompiled(toAddress(log.stack.peek(1)))) {
+		if (isPrecompiled(toAddress(log.stack.peek(1).toString(16)))) {
 			return;
 		}
 		// Gather internal call details

eth/tracers/internal/tracers/bigram_tracer.js

@@ -0,0 +1,47 @@
+// Copyright 2018 The go-ethereum Authors
+// This file is part of the go-ethereum library.
+//
+// The go-ethereum library is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Lesser General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// The go-ethereum library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public License
+// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
+
+{
+    // hist is the counters of opcode bigrams
+    hist: {},
+    // lastOp is last operation
+    lastOp: '',
+    // execution depth of last op
+    lastDepth: 0,
+    // step is invoked for every opcode that the VM executes.
+    step: function(log, db) {
+        var op = log.op.toString();
+        var depth = log.getDepth();
+        if (depth == this.lastDepth){
+            var key = this.lastOp+'-'+op;
+            if (this.hist[key]){
+                this.hist[key]++;
+            }
+            else {
+                this.hist[key] = 1;
+            }
+        }
+        this.lastOp = op;
+        this.lastDepth = depth;
+    },
+    // fault is invoked when the actual execution of an opcode fails.
+    fault: function(log, db) {},
+    // result is invoked when all the opcodes have been iterated over and returns
+    // the final result of the tracing.
+    result: function(ctx) {
+        return this.hist;
+    },
+}

eth/tracers/internal/tracers/trigram_tracer.js

@@ -0,0 +1,49 @@
+// Copyright 2018 The go-ethereum Authors
+// This file is part of the go-ethereum library.
+//
+// The go-ethereum library is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Lesser General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// The go-ethereum library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public License
+// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
+
+{
+    // hist is the map of trigram counters
+    hist: {},
+    // lastOp is last operation
+    lastOps: ['',''],
+    lastDepth: 0,
+        // step is invoked for every opcode that the VM executes.
+    step: function(log, db) {
+        var depth = log.getDepth();
+        if (depth != this.lastDepth){
+            this.lastOps = ['',''];
+            this.lastDepth = depth;
+            return;
+        }
+        var op = log.op.toString();
+        var key = this.lastOps[0]+'-'+this.lastOps[1]+'-'+op;
+        if (this.hist[key]){
+            this.hist[key]++;
+        }
+        else {
+            this.hist[key] = 1;
+        }
+        this.lastOps[0] = this.lastOps[1];
+        this.lastOps[1] = op;
+    },
+    // fault is invoked when the actual execution of an opcode fails.
+    fault: function(log, db) {},
+    // result is invoked when all the opcodes have been iterated over and returns
+    // the final result of the tracing.
+    result: function(ctx) {
+        return this.hist;
+    },
+}

eth/tracers/internal/tracers/unigram_tracer.js

@@ -0,0 +1,43 @@
+// Copyright 2018 The go-ethereum Authors
+// This file is part of the go-ethereum library.
+//
+// The go-ethereum library is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Lesser General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// The go-ethereum library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public License
+// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
+
+{
+    // hist is the map of opcodes to counters
+    hist: {},
+    // nops counts number of ops
+    nops: 0,
+    // step is invoked for every opcode that the VM executes.
+    step: function(log, db) {
+        var op = log.op.toString();
+        if (this.hist[op]){
+            this.hist[op]++;
+        }
+        else {
+            this.hist[op] = 1;
+        }
+        this.nops++;
+    },
+    // fault is invoked when the actual execution of an opcode fails.
+    fault: function(log, db) {},
+
+    // result is invoked when all the opcodes have been iterated over and returns
+    // the final result of the tracing.
+    result: function(ctx) {
+        if(this.nops > 0){
+            return this.hist;
+        }
+    },
+}

ethdb/database.go

@@ -388,6 +388,12 @@ func (b *ldbBatch) Put(key, value []byte) error {
 	return nil
 }
 
+func (b *ldbBatch) Delete(key []byte) error {
+	b.b.Delete(key)
+	b.size += 1
+	return nil
+}
+
 func (b *ldbBatch) Write() error {
 	return b.db.Write(b.b, nil)
 }
@@ -453,6 +459,10 @@ func (tb *tableBatch) Put(key, value []byte) error {
 	return tb.batch.Put(append([]byte(tb.prefix), key...), value)
 }
 
+func (tb *tableBatch) Delete(key []byte) error {
+	return tb.batch.Delete(append([]byte(tb.prefix), key...))
+}
+
 func (tb *tableBatch) Write() error {
 	return tb.batch.Write()
 }

ethdb/interface.go

@@ -25,12 +25,17 @@ type Putter interface {
 	Put(key []byte, value []byte) error
 }
 
+// Deleter wraps the database delete operation supported by both batches and regular databases.
+type Deleter interface {
+	Delete(key []byte) error
+}
+
 // Database wraps all database operations. All methods are safe for concurrent use.
 type Database interface {
 	Putter
+	Deleter
 	Get(key []byte) ([]byte, error)
 	Has(key []byte) (bool, error)
-	Delete(key []byte) error
 	Close()
 	NewBatch() Batch
 }
@@ -39,6 +44,7 @@ type Database interface {
 // when Write is called. Batch cannot be used concurrently.
 type Batch interface {
 	Putter
+	Deleter
 	ValueSize() int // amount of data in the batch
 	Write() error
 	// Reset resets the batch for reuse

ethdb/memory_database.go

@@ -110,11 +110,20 @@ func (b *memBatch) Put(key, value []byte) error {
 	return nil
 }
 
+func (b *memBatch) Delete(key []byte) error {
+	b.writes = append(b.writes, kv{common.CopyBytes(key), nil})
+	return nil
+}
+
 func (b *memBatch) Write() error {
 	b.db.lock.Lock()
 	defer b.db.lock.Unlock()
 
 	for _, kv := range b.writes {
+		if kv.v == nil {
+			delete(b.db.db, string(kv.k))
+			continue
+		}
 		b.db.db[string(kv.k)] = kv.v
 	}
 	return nil

ethstats/ethstats.go

@@ -499,7 +499,7 @@ func (s uncleStats) MarshalJSON() ([]byte, error) {
 	return []byte("[]"), nil
 }
 
-// reportBlock retrieves the current chain head and repors it to the stats server.
+// reportBlock retrieves the current chain head and reports it to the stats server.
 func (s *Service) reportBlock(conn *websocket.Conn, block *types.Block) error {
 	// Gather the block details from the header or block chain
 	details := s.assembleBlockStats(block)

les/fetcher.go

@@ -267,9 +267,16 @@ func (f *lightFetcher) announce(p *peer, head *announceData) {
 		}
 		n = n.parent
 	}
-	if n != nil {
 	// n is now the reorg common ancestor, add a new branch of nodes
-		// check if the node count is too high to add new nodes
+	if n != nil && (head.Number >= n.number+maxNodeCount || head.Number <= n.number) {
+		// if announced head block height is lower or same as n or too far from it to add
+		// intermediate nodes then discard previous announcement info and trigger a resync
+		n = nil
+		fp.nodeCnt = 0
+		fp.nodeByHash = make(map[common.Hash]*fetcherTreeNode)
+	}
+	if n != nil {
+		// check if the node count is too high to add new nodes, discard oldest ones if necessary
 		locked := false
 		for uint64(fp.nodeCnt)+head.Number-n.number > maxNodeCount && fp.root != nil {
 			if !locked {

les/serverpool.go

@@ -87,6 +87,27 @@ const (
 	initStatsWeight = 1
 )
 
+// connReq represents a request for peer connection.
+type connReq struct {
+	p      *peer
+	ip     net.IP
+	port   uint16
+	result chan *poolEntry
+}
+
+// disconnReq represents a request for peer disconnection.
+type disconnReq struct {
+	entry   *poolEntry
+	stopped bool
+	done    chan struct{}
+}
+
+// registerReq represents a request for peer registration.
+type registerReq struct {
+	entry *poolEntry
+	done  chan struct{}
+}
+
 // serverPool implements a pool for storing and selecting newly discovered and already
 // known light server nodes. It received discovered nodes, stores statistics about
 // known nodes and takes care of always having enough good quality servers connected.
@@ -105,10 +126,13 @@ type serverPool struct {
 	discLookups   chan bool
 
 	entries              map[discover.NodeID]*poolEntry
-	lock                 sync.Mutex
 	timeout, enableRetry chan *poolEntry
 	adjustStats          chan poolStatAdjust
 
+	connCh     chan *connReq
+	disconnCh  chan *disconnReq
+	registerCh chan *registerReq
+
 	knownQueue, newQueue       poolEntryQueue
 	knownSelect, newSelect     *weightedRandomSelect
 	knownSelected, newSelected int
@@ -125,6 +149,9 @@ func newServerPool(db ethdb.Database, quit chan struct{}, wg *sync.WaitGroup) *s
 		timeout:      make(chan *poolEntry, 1),
 		adjustStats:  make(chan poolStatAdjust, 100),
 		enableRetry:  make(chan *poolEntry, 1),
+		connCh:       make(chan *connReq),
+		disconnCh:    make(chan *disconnReq),
+		registerCh:   make(chan *registerReq),
 		knownSelect:  newWeightedRandomSelect(),
 		newSelect:    newWeightedRandomSelect(),
 		fastDiscover: true,
@@ -147,9 +174,8 @@ func (pool *serverPool) start(server *p2p.Server, topic discv5.Topic) {
 		pool.discLookups = make(chan bool, 100)
 		go pool.server.DiscV5.SearchTopic(pool.topic, pool.discSetPeriod, pool.discNodes, pool.discLookups)
 	}
-
-	go pool.eventLoop()
 	pool.checkDial()
+	go pool.eventLoop()
 }
 
 // connect should be called upon any incoming connection. If the connection has been
@@ -158,83 +184,44 @@ func (pool *serverPool) start(server *p2p.Server, topic discv5.Topic) {
 // Note that whenever a connection has been accepted and a pool entry has been returned,
 // disconnect should also always be called.
 func (pool *serverPool) connect(p *peer, ip net.IP, port uint16) *poolEntry {
-	pool.lock.Lock()
+	log.Debug("Connect new entry", "enode", p.id)
-	defer pool.lock.Unlock()
+	req := &connReq{p: p, ip: ip, port: port, result: make(chan *poolEntry, 1)}
-	entry := pool.entries[p.ID()]
+	select {
-	if entry == nil {
+	case pool.connCh <- req:
-		entry = pool.findOrNewNode(p.ID(), ip, port)
+	case <-pool.quit:
-	}
-	p.Log().Debug("Connecting to new peer", "state", entry.state)
-	if entry.state == psConnected || entry.state == psRegistered {
 		return nil
 	}
-	pool.connWg.Add(1)
+	return <-req.result
-	entry.peer = p
-	entry.state = psConnected
-	addr := &poolEntryAddress{
-		ip:       ip,
-		port:     port,
-		lastSeen: mclock.Now(),
-	}
-	entry.lastConnected = addr
-	entry.addr = make(map[string]*poolEntryAddress)
-	entry.addr[addr.strKey()] = addr
-	entry.addrSelect = *newWeightedRandomSelect()
-	entry.addrSelect.update(addr)
-	return entry
 }
 
 // registered should be called after a successful handshake
 func (pool *serverPool) registered(entry *poolEntry) {
 	log.Debug("Registered new entry", "enode", entry.id)
-	pool.lock.Lock()
+	req := &registerReq{entry: entry, done: make(chan struct{})}
-	defer pool.lock.Unlock()
+	select {
-
+	case pool.registerCh <- req:
-	entry.state = psRegistered
+	case <-pool.quit:
-	entry.regTime = mclock.Now()
+		return
-	if !entry.known {
-		pool.newQueue.remove(entry)
-		entry.known = true
 	}
-	pool.knownQueue.setLatest(entry)
+	<-req.done
-	entry.shortRetry = shortRetryCnt
 }
 
 // disconnect should be called when ending a connection. Service quality statistics
 // can be updated optionally (not updated if no registration happened, in this case
 // only connection statistics are updated, just like in case of timeout)
 func (pool *serverPool) disconnect(entry *poolEntry) {
-	log.Debug("Disconnected old entry", "enode", entry.id)
-	pool.lock.Lock()
-	defer pool.lock.Unlock()
-
-	if entry.state == psRegistered {
-		connTime := mclock.Now() - entry.regTime
-		connAdjust := float64(connTime) / float64(targetConnTime)
-		if connAdjust > 1 {
-			connAdjust = 1
-		}
 	stopped := false
 	select {
 	case <-pool.quit:
 		stopped = true
 	default:
 	}
-		if stopped {
+	log.Debug("Disconnected old entry", "enode", entry.id)
-			entry.connectStats.add(1, connAdjust)
+	req := &disconnReq{entry: entry, stopped: stopped, done: make(chan struct{})}
-		} else {
-			entry.connectStats.add(connAdjust, 1)
-		}
-	}
 
-	entry.state = psNotConnected
+	// Block until disconnection request is served.
-	if entry.knownSelected {
+	pool.disconnCh <- req
-		pool.knownSelected--
+	<-req.done
-	} else {
-		pool.newSelected--
-	}
-	pool.setRetryDial(entry)
-	pool.connWg.Done()
 }
 
 const (
@@ -277,25 +264,51 @@ func (pool *serverPool) eventLoop() {
 	if pool.discSetPeriod != nil {
 		pool.discSetPeriod <- time.Millisecond * 100
 	}
+
+	// disconnect updates service quality statistics depending on the connection time
+	// and disconnection initiator.
+	disconnect := func(req *disconnReq, stopped bool) {
+		// Handle peer disconnection requests.
+		entry := req.entry
+		if entry.state == psRegistered {
+			connAdjust := float64(mclock.Now()-entry.regTime) / float64(targetConnTime)
+			if connAdjust > 1 {
+				connAdjust = 1
+			}
+			if stopped {
+				// disconnect requested by ourselves.
+				entry.connectStats.add(1, connAdjust)
+			} else {
+				// disconnect requested by server side.
+				entry.connectStats.add(connAdjust, 1)
+			}
+		}
+		entry.state = psNotConnected
+
+		if entry.knownSelected {
+			pool.knownSelected--
+		} else {
+			pool.newSelected--
+		}
+		pool.setRetryDial(entry)
+		pool.connWg.Done()
+		close(req.done)
+	}
+
 	for {
 		select {
 		case entry := <-pool.timeout:
-			pool.lock.Lock()
 			if !entry.removed {
 				pool.checkDialTimeout(entry)
 			}
-			pool.lock.Unlock()
 
 		case entry := <-pool.enableRetry:
-			pool.lock.Lock()
 			if !entry.removed {
 				entry.delayedRetry = false
 				pool.updateCheckDial(entry)
 			}
-			pool.lock.Unlock()
 
 		case adj := <-pool.adjustStats:
-			pool.lock.Lock()
 			switch adj.adjustType {
 			case pseBlockDelay:
 				adj.entry.delayStats.add(float64(adj.time), 1)
@@ -305,13 +318,10 @@ func (pool *serverPool) eventLoop() {
 			case pseResponseTimeout:
 				adj.entry.timeoutStats.add(1, 1)
 			}
-			pool.lock.Unlock()
 
 		case node := <-pool.discNodes:
-			pool.lock.Lock()
 			entry := pool.findOrNewNode(discover.NodeID(node.ID), node.IP, node.TCP)
 			pool.updateCheckDial(entry)
-			pool.lock.Unlock()
 
 		case conv := <-pool.discLookups:
 			if conv {
@@ -327,15 +337,66 @@ func (pool *serverPool) eventLoop() {
 				}
 			}
 
+		case req := <-pool.connCh:
+			// Handle peer connection requests.
+			entry := pool.entries[req.p.ID()]
+			if entry == nil {
+				entry = pool.findOrNewNode(req.p.ID(), req.ip, req.port)
+			}
+			if entry.state == psConnected || entry.state == psRegistered {
+				req.result <- nil
+				continue
+			}
+			pool.connWg.Add(1)
+			entry.peer = req.p
+			entry.state = psConnected
+			addr := &poolEntryAddress{
+				ip:       req.ip,
+				port:     req.port,
+				lastSeen: mclock.Now(),
+			}
+			entry.lastConnected = addr
+			entry.addr = make(map[string]*poolEntryAddress)
+			entry.addr[addr.strKey()] = addr
+			entry.addrSelect = *newWeightedRandomSelect()
+			entry.addrSelect.update(addr)
+			req.result <- entry
+
+		case req := <-pool.registerCh:
+			// Handle peer registration requests.
+			entry := req.entry
+			entry.state = psRegistered
+			entry.regTime = mclock.Now()
+			if !entry.known {
+				pool.newQueue.remove(entry)
+				entry.known = true
+			}
+			pool.knownQueue.setLatest(entry)
+			entry.shortRetry = shortRetryCnt
+			close(req.done)
+
+		case req := <-pool.disconnCh:
+			// Handle peer disconnection requests.
+			disconnect(req, req.stopped)
+
 		case <-pool.quit:
 			if pool.discSetPeriod != nil {
 				close(pool.discSetPeriod)
 			}
+
+			// Spawn a goroutine to close the disconnCh after all connections are disconnected.
+			go func() {
 				pool.connWg.Wait()
+				close(pool.disconnCh)
+			}()
+
+			// Handle all remaining disconnection requests before exit.
+			for req := range pool.disconnCh {
+				disconnect(req, true)
+			}
 			pool.saveNodes()
 			pool.wg.Done()
 			return
-
 		}
 	}
 }

light/postprocess.go

@@ -59,18 +59,18 @@ type trustedCheckpoint struct {
 var (
 	mainnetCheckpoint = trustedCheckpoint{
 		name:          "mainnet",
-		sectionIdx:    174,
+		sectionIdx:    179,
-		sectionHead:   common.HexToHash("a3ef48cd8f1c3a08419f0237fc7763491fe89497b3144b17adf87c1c43664613"),
+		sectionHead:   common.HexToHash("ae778e455492db1183e566fa0c67f954d256fdd08618f6d5a393b0e24576d0ea"),
-		chtRoot:       common.HexToHash("dcbeed9f4dea1b3cb75601bb27c51b9960c28e5850275402ac49a150a667296e"),
+		chtRoot:       common.HexToHash("646b338f9ca74d936225338916be53710ec84020b89946004a8605f04c817f16"),
-		bloomTrieRoot: common.HexToHash("6b7497a4a03e33870a2383cb6f5e70570f12b1bf5699063baf8c71d02ca90b02"),
+		bloomTrieRoot: common.HexToHash("d0f978f5dbc86e5bf931d8dd5b2ecbebbda6dc78f8896af6a27b46a3ced0ac25"),
 	}
 
 	ropstenCheckpoint = trustedCheckpoint{
 		name:          "ropsten",
-		sectionIdx:    102,
+		sectionIdx:    107,
-		sectionHead:   common.HexToHash("9017ab08465cb2b2dee035ee5b817bbd7fa28e2c8d2cd903e0aed1cccb249e89"),
+		sectionHead:   common.HexToHash("e1988f95399debf45b873e065e5cd61b416ef2e2e5deec5a6f87c3127086e1ce"),
-		chtRoot:       common.HexToHash("f61c10a7a787a5ef15f0ae1ae6c13c64331e57e79d0466d2bd9b0c06833fe956"),
+		chtRoot:       common.HexToHash("15cba18e4de0ab1e95e202625199ba30147aec8b0b70384b66ebea31ba6a18e0"),
-		bloomTrieRoot: common.HexToHash("69f2ad19aa46d5213a90137b3d2c9bff8a7c9483f7170f0125096ff450c9a873"),
+		bloomTrieRoot: common.HexToHash("e00fa6389b2e597d9df52172cd8e936879eed0fca4fa59db99e2c8ed682562f2"),
 	}
 )
 

light/txpool.go

@@ -199,15 +199,17 @@ func (pool *TxPool) checkMinedTxs(ctx context.Context, hash common.Hash, number
 // rollbackTxs marks the transactions contained in recently rolled back blocks
 // as rolled back. It also removes any positional lookup entries.
 func (pool *TxPool) rollbackTxs(hash common.Hash, txc txStateChanges) {
+	batch := pool.chainDb.NewBatch()
 	if list, ok := pool.mined[hash]; ok {
 		for _, tx := range list {
 			txHash := tx.Hash()
-			rawdb.DeleteTxLookupEntry(pool.chainDb, txHash)
+			rawdb.DeleteTxLookupEntry(batch, txHash)
 			pool.pending[txHash] = tx
 			txc.setState(txHash, false)
 		}
 		delete(pool.mined, hash)
 	}
+	batch.Write()
 }
 
 // reorgOnNewHead sets a new head header, processing (and rolling back if necessary)
@@ -504,14 +506,16 @@ func (self *TxPool) Content() (map[common.Address]types.Transactions, map[common
 func (self *TxPool) RemoveTransactions(txs types.Transactions) {
 	self.mu.Lock()
 	defer self.mu.Unlock()
+
 	var hashes []common.Hash
+	batch := self.chainDb.NewBatch()
 	for _, tx := range txs {
-		//self.RemoveTx(tx.Hash())
 		hash := tx.Hash()
 		delete(self.pending, hash)
-		self.chainDb.Delete(hash[:])
+		batch.Delete(hash.Bytes())
 		hashes = append(hashes, hash)
 	}
+	batch.Write()
 	self.relay.Discard(hashes)
 }
 

log/format.go

@@ -15,7 +15,7 @@ import (
 
 const (
 	timeFormat     = "2006-01-02T15:04:05-0700"
-	termTimeFormat = "01-02|15:04:05.999999"
+	termTimeFormat = "01-02|15:04:05.000"
 	floatFormat    = 'f'
 	termMsgJust    = 40
 )

metrics/influxdb/influxdb.go

@@ -2,10 +2,10 @@ package influxdb
 
 import (
 	"fmt"
-	"log"
 	uurl "net/url"
 	"time"
 
+	"github.com/ethereum/go-ethereum/log"
 	"github.com/ethereum/go-ethereum/metrics"
 	"github.com/influxdata/influxdb/client"
 )
@@ -35,7 +35,7 @@ func InfluxDB(r metrics.Registry, d time.Duration, url, database, username, pass
 func InfluxDBWithTags(r metrics.Registry, d time.Duration, url, database, username, password, namespace string, tags map[string]string) {
 	u, err := uurl.Parse(url)
 	if err != nil {
-		log.Printf("unable to parse InfluxDB url %s. err=%v", url, err)
+		log.Warn("Unable to parse InfluxDB", "url", url, "err", err)
 		return
 	}
 
@@ -51,7 +51,7 @@ func InfluxDBWithTags(r metrics.Registry, d time.Duration, url, database, userna
 		cache:     make(map[string]int64),
 	}
 	if err := rep.makeClient(); err != nil {
-		log.Printf("unable to make InfluxDB client. err=%v", err)
+		log.Warn("Unable to make InfluxDB client", "err", err)
 		return
 	}
 
@@ -76,15 +76,15 @@ func (r *reporter) run() {
 		select {
 		case <-intervalTicker:
 			if err := r.send(); err != nil {
-				log.Printf("unable to send to InfluxDB. err=%v", err)
+				log.Warn("Unable to send to InfluxDB", "err", err)
 			}
 		case <-pingTicker:
 			_, _, err := r.client.Ping()
 			if err != nil {
-				log.Printf("got error while sending a ping to InfluxDB, trying to recreate client. err=%v", err)
+				log.Warn("Got error while sending a ping to InfluxDB, trying to recreate client", "err", err)
 
 				if err = r.makeClient(); err != nil {
-					log.Printf("unable to make InfluxDB client. err=%v", err)
+					log.Warn("Unable to make InfluxDB client", "err", err)
 				}
 			}
 		}

metrics/metrics.go

@@ -58,11 +58,14 @@ func CollectProcessMetrics(refresh time.Duration) {
 	memPauses := GetOrRegisterMeter("system/memory/pauses", DefaultRegistry)
 
 	var diskReads, diskReadBytes, diskWrites, diskWriteBytes Meter
+	var diskReadBytesCounter, diskWriteBytesCounter Counter
 	if err := ReadDiskStats(diskstats[0]); err == nil {
 		diskReads = GetOrRegisterMeter("system/disk/readcount", DefaultRegistry)
 		diskReadBytes = GetOrRegisterMeter("system/disk/readdata", DefaultRegistry)
+		diskReadBytesCounter = GetOrRegisterCounter("system/disk/readbytes", DefaultRegistry)
 		diskWrites = GetOrRegisterMeter("system/disk/writecount", DefaultRegistry)
 		diskWriteBytes = GetOrRegisterMeter("system/disk/writedata", DefaultRegistry)
+		diskWriteBytesCounter = GetOrRegisterCounter("system/disk/writebytes", DefaultRegistry)
 	} else {
 		log.Debug("Failed to read disk metrics", "err", err)
 	}
@@ -82,6 +85,9 @@ func CollectProcessMetrics(refresh time.Duration) {
 			diskReadBytes.Mark(diskstats[location1].ReadBytes - diskstats[location2].ReadBytes)
 			diskWrites.Mark(diskstats[location1].WriteCount - diskstats[location2].WriteCount)
 			diskWriteBytes.Mark(diskstats[location1].WriteBytes - diskstats[location2].WriteBytes)
+
+			diskReadBytesCounter.Inc(diskstats[location1].ReadBytes - diskstats[location2].ReadBytes)
+			diskWriteBytesCounter.Inc(diskstats[location1].WriteBytes - diskstats[location2].WriteBytes)
 		}
 		time.Sleep(refresh)
 	}

mobile/ethereum.go

@@ -125,12 +125,12 @@ func (t *Topics) Append(topics *Hashes) {
 	t.topics = append(t.topics, topics.hashes)
 }
 
-// FilterQuery contains options for contact log filtering.
+// FilterQuery contains options for contract log filtering.
 type FilterQuery struct {
 	query ethereum.FilterQuery
 }
 
-// NewFilterQuery creates an empty filter query for contact log filtering.
+// NewFilterQuery creates an empty filter query for contract log filtering.
 func NewFilterQuery() *FilterQuery {
 	return new(FilterQuery)
 }

mobile/geth.go

@@ -193,7 +193,7 @@ func (n *Node) Start() error {
 	return n.node.Start()
 }
 
-// Stop terminates a running node along with all it's services. In the node was
+// Stop terminates a running node along with all it's services. If the node was
 // not started, an error is returned.
 func (n *Node) Stop() error {
 	return n.node.Stop()

node/api.go

@@ -343,13 +343,13 @@ func (api *PublicDebugAPI) Metrics(raw bool) (map[string]interface{}, error) {
 				ps := t.Percentiles([]float64{5, 20, 50, 80, 95})
 				root[name] = map[string]interface{}{
 					"Measurements": len(t.Values()),
-					"Mean":         time.Duration(t.Mean()).String(),
+					"Mean":         t.Mean(),
 					"Percentiles": map[string]interface{}{
-						"5":  time.Duration(ps[0]).String(),
+						"5":  ps[0],
-						"20": time.Duration(ps[1]).String(),
+						"20": ps[1],
-						"50": time.Duration(ps[2]).String(),
+						"50": ps[2],
-						"80": time.Duration(ps[3]).String(),
+						"80": ps[3],
-						"95": time.Duration(ps[4]).String(),
+						"95": ps[4],
 					},
 				}
 

node/doc.go

@@ -69,7 +69,7 @@ unless its location is changed through the KeyStoreDir configuration option.
 Data Directory Sharing Example
 
 In this example, two node instances named A and B are started with the same data
-directory. Mode instance A opens the database "db", node instance B opens the databases
+directory. Node instance A opens the database "db", node instance B opens the databases
 "db" and "db-2". The following files will be created in the data directory:
 
    data-directory/

p2p/discover/database.go

@@ -42,6 +42,7 @@ var (
 	nodeDBNilNodeID      = NodeID{}       // Special node ID to use as a nil element.
 	nodeDBNodeExpiration = 24 * time.Hour // Time after which an unseen node should be dropped.
 	nodeDBCleanupCycle   = time.Hour      // Time period for running the expiration task.
+	nodeDBVersion        = 5
 )
 
 // nodeDB stores all nodes we know about.
@@ -257,7 +258,7 @@ func (db *nodeDB) expireNodes() error {
 		}
 		// Skip the node if not expired yet (and not self)
 		if !bytes.Equal(id[:], db.self[:]) {
-			if seen := db.bondTime(id); seen.After(threshold) {
+			if seen := db.lastPongReceived(id); seen.After(threshold) {
 				continue
 			}
 		}
@@ -267,29 +268,28 @@ func (db *nodeDB) expireNodes() error {
 	return nil
 }
 
-// lastPing retrieves the time of the last ping packet send to a remote node,
+// lastPingReceived retrieves the time of the last ping packet sent by the remote node.
-// requesting binding.
+func (db *nodeDB) lastPingReceived(id NodeID) time.Time {
-func (db *nodeDB) lastPing(id NodeID) time.Time {
 	return time.Unix(db.fetchInt64(makeKey(id, nodeDBDiscoverPing)), 0)
 }
 
-// updateLastPing updates the last time we tried contacting a remote node.
+// updateLastPing updates the last time remote node pinged us.
-func (db *nodeDB) updateLastPing(id NodeID, instance time.Time) error {
+func (db *nodeDB) updateLastPingReceived(id NodeID, instance time.Time) error {
 	return db.storeInt64(makeKey(id, nodeDBDiscoverPing), instance.Unix())
 }
 
-// bondTime retrieves the time of the last successful pong from remote node.
+// lastPongReceived retrieves the time of the last successful pong from remote node.
-func (db *nodeDB) bondTime(id NodeID) time.Time {
+func (db *nodeDB) lastPongReceived(id NodeID) time.Time {
 	return time.Unix(db.fetchInt64(makeKey(id, nodeDBDiscoverPong)), 0)
 }
 
 // hasBond reports whether the given node is considered bonded.
 func (db *nodeDB) hasBond(id NodeID) bool {
-	return time.Since(db.bondTime(id)) < nodeDBNodeExpiration
+	return time.Since(db.lastPongReceived(id)) < nodeDBNodeExpiration
 }
 
-// updateBondTime updates the last pong time of a node.
+// updateLastPongReceived updates the last pong time of a node.
-func (db *nodeDB) updateBondTime(id NodeID, instance time.Time) error {
+func (db *nodeDB) updateLastPongReceived(id NodeID, instance time.Time) error {
 	return db.storeInt64(makeKey(id, nodeDBDiscoverPong), instance.Unix())
 }
 
@@ -332,7 +332,7 @@ seek:
 		if n.ID == db.self {
 			continue seek
 		}
-		if now.Sub(db.bondTime(n.ID)) > maxAge {
+		if now.Sub(db.lastPongReceived(n.ID)) > maxAge {
 			continue seek
 		}
 		for i := range nodes {

p2p/discover/database_test.go

@@ -79,7 +79,7 @@ var nodeDBInt64Tests = []struct {
 }
 
 func TestNodeDBInt64(t *testing.T) {
-	db, _ := newNodeDB("", Version, NodeID{})
+	db, _ := newNodeDB("", nodeDBVersion, NodeID{})
 	defer db.close()
 
 	tests := nodeDBInt64Tests
@@ -111,27 +111,27 @@ func TestNodeDBFetchStore(t *testing.T) {
 	inst := time.Now()
 	num := 314
 
-	db, _ := newNodeDB("", Version, NodeID{})
+	db, _ := newNodeDB("", nodeDBVersion, NodeID{})
 	defer db.close()
 
 	// Check fetch/store operations on a node ping object
-	if stored := db.lastPing(node.ID); stored.Unix() != 0 {
+	if stored := db.lastPingReceived(node.ID); stored.Unix() != 0 {
 		t.Errorf("ping: non-existing object: %v", stored)
 	}
-	if err := db.updateLastPing(node.ID, inst); err != nil {
+	if err := db.updateLastPingReceived(node.ID, inst); err != nil {
 		t.Errorf("ping: failed to update: %v", err)
 	}
-	if stored := db.lastPing(node.ID); stored.Unix() != inst.Unix() {
+	if stored := db.lastPingReceived(node.ID); stored.Unix() != inst.Unix() {
 		t.Errorf("ping: value mismatch: have %v, want %v", stored, inst)
 	}
 	// Check fetch/store operations on a node pong object
-	if stored := db.bondTime(node.ID); stored.Unix() != 0 {
+	if stored := db.lastPongReceived(node.ID); stored.Unix() != 0 {
 		t.Errorf("pong: non-existing object: %v", stored)
 	}
-	if err := db.updateBondTime(node.ID, inst); err != nil {
+	if err := db.updateLastPongReceived(node.ID, inst); err != nil {
 		t.Errorf("pong: failed to update: %v", err)
 	}
-	if stored := db.bondTime(node.ID); stored.Unix() != inst.Unix() {
+	if stored := db.lastPongReceived(node.ID); stored.Unix() != inst.Unix() {
 		t.Errorf("pong: value mismatch: have %v, want %v", stored, inst)
 	}
 	// Check fetch/store operations on a node findnode-failure object
@@ -216,7 +216,7 @@ var nodeDBSeedQueryNodes = []struct {
 }
 
 func TestNodeDBSeedQuery(t *testing.T) {
-	db, _ := newNodeDB("", Version, nodeDBSeedQueryNodes[1].node.ID)
+	db, _ := newNodeDB("", nodeDBVersion, nodeDBSeedQueryNodes[1].node.ID)
 	defer db.close()
 
 	// Insert a batch of nodes for querying
@@ -224,7 +224,7 @@ func TestNodeDBSeedQuery(t *testing.T) {
 		if err := db.updateNode(seed.node); err != nil {
 			t.Fatalf("node %d: failed to insert: %v", i, err)
 		}
-		if err := db.updateBondTime(seed.node.ID, seed.pong); err != nil {
+		if err := db.updateLastPongReceived(seed.node.ID, seed.pong); err != nil {
 			t.Fatalf("node %d: failed to insert bondTime: %v", i, err)
 		}
 	}
@@ -267,7 +267,7 @@ func TestNodeDBPersistency(t *testing.T) {
 	)
 
 	// Create a persistent database and store some values
-	db, err := newNodeDB(filepath.Join(root, "database"), Version, NodeID{})
+	db, err := newNodeDB(filepath.Join(root, "database"), nodeDBVersion, NodeID{})
 	if err != nil {
 		t.Fatalf("failed to create persistent database: %v", err)
 	}
@@ -277,7 +277,7 @@ func TestNodeDBPersistency(t *testing.T) {
 	db.close()
 
 	// Reopen the database and check the value
-	db, err = newNodeDB(filepath.Join(root, "database"), Version, NodeID{})
+	db, err = newNodeDB(filepath.Join(root, "database"), nodeDBVersion, NodeID{})
 	if err != nil {
 		t.Fatalf("failed to open persistent database: %v", err)
 	}
@@ -287,7 +287,7 @@ func TestNodeDBPersistency(t *testing.T) {
 	db.close()
 
 	// Change the database version and check flush
-	db, err = newNodeDB(filepath.Join(root, "database"), Version+1, NodeID{})
+	db, err = newNodeDB(filepath.Join(root, "database"), nodeDBVersion+1, NodeID{})
 	if err != nil {
 		t.Fatalf("failed to open persistent database: %v", err)
 	}
@@ -324,7 +324,7 @@ var nodeDBExpirationNodes = []struct {
 }
 
 func TestNodeDBExpiration(t *testing.T) {
-	db, _ := newNodeDB("", Version, NodeID{})
+	db, _ := newNodeDB("", nodeDBVersion, NodeID{})
 	defer db.close()
 
 	// Add all the test nodes and set their last pong time
@@ -332,7 +332,7 @@ func TestNodeDBExpiration(t *testing.T) {
 		if err := db.updateNode(seed.node); err != nil {
 			t.Fatalf("node %d: failed to insert: %v", i, err)
 		}
-		if err := db.updateBondTime(seed.node.ID, seed.pong); err != nil {
+		if err := db.updateLastPongReceived(seed.node.ID, seed.pong); err != nil {
 			t.Fatalf("node %d: failed to update bondTime: %v", i, err)
 		}
 	}
@@ -357,7 +357,7 @@ func TestNodeDBSelfExpiration(t *testing.T) {
 			break
 		}
 	}
-	db, _ := newNodeDB("", Version, self)
+	db, _ := newNodeDB("", nodeDBVersion, self)
 	defer db.close()
 
 	// Add all the test nodes and set their last pong time
@@ -365,7 +365,7 @@ func TestNodeDBSelfExpiration(t *testing.T) {
 		if err := db.updateNode(seed.node); err != nil {
 			t.Fatalf("node %d: failed to insert: %v", i, err)
 		}
-		if err := db.updateBondTime(seed.node.ID, seed.pong); err != nil {
+		if err := db.updateLastPongReceived(seed.node.ID, seed.pong); err != nil {
 			t.Fatalf("node %d: failed to update bondTime: %v", i, err)
 		}
 	}

p2p/discover/table.go

@@ -25,7 +25,6 @@ package discover
 import (
 	crand "crypto/rand"
 	"encoding/binary"
-	"errors"
 	"fmt"
 	mrand "math/rand"
 	"net"
@@ -54,9 +53,7 @@ const (
 	bucketIPLimit, bucketSubnet = 2, 24 // at most 2 addresses from the same /24
 	tableIPLimit, tableSubnet   = 10, 24
 
-	maxBondingPingPongs = 16 // Limit on the number of concurrent ping/pong interactions
 	maxFindnodeFailures = 5 // Nodes exceeding this limit are dropped
-
 	refreshInterval     = 30 * time.Minute
 	revalidateInterval  = 10 * time.Second
 	copyNodesInterval   = 30 * time.Second
@@ -78,28 +75,17 @@ type Table struct {
 	closeReq   chan struct{}
 	closed     chan struct{}
 
-	bondmu    sync.Mutex
-	bonding   map[NodeID]*bondproc
-	bondslots chan struct{} // limits total number of active bonding processes
-
 	nodeAddedHook func(*Node) // for testing
 
 	net  transport
 	self *Node // metadata of the local node
 }
 
-type bondproc struct {
-	err  error
-	n    *Node
-	done chan struct{}
-}
-
 // transport is implemented by the UDP transport.
 // it is an interface so we can test without opening lots of UDP
 // sockets and without generating a private key.
 type transport interface {
 	ping(NodeID, *net.UDPAddr) error
-	waitping(NodeID) error
 	findnode(toid NodeID, addr *net.UDPAddr, target NodeID) ([]*Node, error)
 	close()
 }
@@ -114,7 +100,7 @@ type bucket struct {
 
 func newTable(t transport, ourID NodeID, ourAddr *net.UDPAddr, nodeDBPath string, bootnodes []*Node) (*Table, error) {
 	// If no node database was given, use an in-memory one
-	db, err := newNodeDB(nodeDBPath, Version, ourID)
+	db, err := newNodeDB(nodeDBPath, nodeDBVersion, ourID)
 	if err != nil {
 		return nil, err
 	}
@@ -122,8 +108,6 @@ func newTable(t transport, ourID NodeID, ourAddr *net.UDPAddr, nodeDBPath string
 		net:        t,
 		db:         db,
 		self:       NewNode(ourID, ourAddr.IP, uint16(ourAddr.Port), uint16(ourAddr.Port)),
-		bonding:    make(map[NodeID]*bondproc),
-		bondslots:  make(chan struct{}, maxBondingPingPongs),
 		refreshReq: make(chan chan struct{}),
 		initDone:   make(chan struct{}),
 		closeReq:   make(chan struct{}),
@@ -134,16 +118,13 @@ func newTable(t transport, ourID NodeID, ourAddr *net.UDPAddr, nodeDBPath string
 	if err := tab.setFallbackNodes(bootnodes); err != nil {
 		return nil, err
 	}
-	for i := 0; i < cap(tab.bondslots); i++ {
-		tab.bondslots <- struct{}{}
-	}
 	for i := range tab.buckets {
 		tab.buckets[i] = &bucket{
 			ips: netutil.DistinctNetSet{Subnet: bucketSubnet, Limit: bucketIPLimit},
 		}
 	}
 	tab.seedRand()
-	tab.loadSeedNodes(false)
+	tab.loadSeedNodes()
 	// Start the background expiration goroutine after loading seeds so that the search for
 	// seed nodes also considers older nodes that would otherwise be removed by the
 	// expiration.
@@ -315,22 +296,7 @@ func (tab *Table) lookup(targetID NodeID, refreshIfEmpty bool) []*Node {
 			if !asked[n.ID] {
 				asked[n.ID] = true
 				pendingQueries++
-				go func() {
+				go tab.findnode(n, targetID, reply)
-					// Find potential neighbors to bond with
-					r, err := tab.net.findnode(n.ID, n.addr(), targetID)
-					if err != nil {
-						// Bump the failure counter to detect and evacuate non-bonded entries
-						fails := tab.db.findFails(n.ID) + 1
-						tab.db.updateFindFails(n.ID, fails)
-						log.Trace("Bumping findnode failure counter", "id", n.ID, "failcount", fails)
-
-						if fails >= maxFindnodeFailures {
-							log.Trace("Too many findnode failures, dropping", "id", n.ID, "failcount", fails)
-							tab.delete(n)
-						}
-					}
-					reply <- tab.bondall(r)
-				}()
 			}
 		}
 		if pendingQueries == 0 {
@@ -349,6 +315,29 @@ func (tab *Table) lookup(targetID NodeID, refreshIfEmpty bool) []*Node {
 	return result.entries
 }
 
+func (tab *Table) findnode(n *Node, targetID NodeID, reply chan<- []*Node) {
+	fails := tab.db.findFails(n.ID)
+	r, err := tab.net.findnode(n.ID, n.addr(), targetID)
+	if err != nil || len(r) == 0 {
+		fails++
+		tab.db.updateFindFails(n.ID, fails)
+		log.Trace("Findnode failed", "id", n.ID, "failcount", fails, "err", err)
+		if fails >= maxFindnodeFailures {
+			log.Trace("Too many findnode failures, dropping", "id", n.ID, "failcount", fails)
+			tab.delete(n)
+		}
+	} else if fails > 0 {
+		tab.db.updateFindFails(n.ID, fails-1)
+	}
+
+	// Grab as many nodes as possible. Some of them might not be alive anymore, but we'll
+	// just remove those again during revalidation.
+	for _, n := range r {
+		tab.add(n)
+	}
+	reply <- r
+}
+
 func (tab *Table) refresh() <-chan struct{} {
 	done := make(chan struct{})
 	select {
@@ -401,7 +390,7 @@ loop:
 		case <-revalidateDone:
 			revalidate.Reset(tab.nextRevalidateTime())
 		case <-copyNodes.C:
-			go tab.copyBondedNodes()
+			go tab.copyLiveNodes()
 		case <-tab.closeReq:
 			break loop
 		}
@@ -429,7 +418,7 @@ func (tab *Table) doRefresh(done chan struct{}) {
 	// Load nodes from the database and insert
 	// them. This should yield a few previously seen nodes that are
 	// (hopefully) still alive.
-	tab.loadSeedNodes(true)
+	tab.loadSeedNodes()
 
 	// Run self lookup to discover new neighbor nodes.
 	tab.lookup(tab.self.ID, false)
@@ -447,15 +436,12 @@ func (tab *Table) doRefresh(done chan struct{}) {
 	}
 }
 
-func (tab *Table) loadSeedNodes(bond bool) {
+func (tab *Table) loadSeedNodes() {
 	seeds := tab.db.querySeeds(seedCount, seedMaxAge)
 	seeds = append(seeds, tab.nursery...)
-	if bond {
-		seeds = tab.bondall(seeds)
-	}
 	for i := range seeds {
 		seed := seeds[i]
-		age := log.Lazy{Fn: func() interface{} { return time.Since(tab.db.bondTime(seed.ID)) }}
+		age := log.Lazy{Fn: func() interface{} { return time.Since(tab.db.lastPongReceived(seed.ID)) }}
 		log.Debug("Found seed node in database", "id", seed.ID, "addr", seed.addr(), "age", age)
 		tab.add(seed)
 	}
@@ -473,7 +459,7 @@ func (tab *Table) doRevalidate(done chan<- struct{}) {
 	}
 
 	// Ping the selected node and wait for a pong.
-	err := tab.ping(last.ID, last.addr())
+	err := tab.net.ping(last.ID, last.addr())
 
 	tab.mutex.Lock()
 	defer tab.mutex.Unlock()
@@ -515,9 +501,9 @@ func (tab *Table) nextRevalidateTime() time.Duration {
 	return time.Duration(tab.rand.Int63n(int64(revalidateInterval)))
 }
 
-// copyBondedNodes adds nodes from the table to the database if they have been in the table
+// copyLiveNodes adds nodes from the table to the database if they have been in the table
 // longer then minTableTime.
-func (tab *Table) copyBondedNodes() {
+func (tab *Table) copyLiveNodes() {
 	tab.mutex.Lock()
 	defer tab.mutex.Unlock()
 
@@ -553,120 +539,6 @@ func (tab *Table) len() (n int) {
 	return n
 }
 
-// bondall bonds with all given nodes concurrently and returns
-// those nodes for which bonding has probably succeeded.
-func (tab *Table) bondall(nodes []*Node) (result []*Node) {
-	rc := make(chan *Node, len(nodes))
-	for i := range nodes {
-		go func(n *Node) {
-			nn, _ := tab.bond(false, n.ID, n.addr(), n.TCP)
-			rc <- nn
-		}(nodes[i])
-	}
-	for range nodes {
-		if n := <-rc; n != nil {
-			result = append(result, n)
-		}
-	}
-	return result
-}
-
-// bond ensures the local node has a bond with the given remote node.
-// It also attempts to insert the node into the table if bonding succeeds.
-// The caller must not hold tab.mutex.
-//
-// A bond is must be established before sending findnode requests.
-// Both sides must have completed a ping/pong exchange for a bond to
-// exist. The total number of active bonding processes is limited in
-// order to restrain network use.
-//
-// bond is meant to operate idempotently in that bonding with a remote
-// node which still remembers a previously established bond will work.
-// The remote node will simply not send a ping back, causing waitping
-// to time out.
-//
-// If pinged is true, the remote node has just pinged us and one half
-// of the process can be skipped.
-func (tab *Table) bond(pinged bool, id NodeID, addr *net.UDPAddr, tcpPort uint16) (*Node, error) {
-	if id == tab.self.ID {
-		return nil, errors.New("is self")
-	}
-	if pinged && !tab.isInitDone() {
-		return nil, errors.New("still initializing")
-	}
-	// Start bonding if we haven't seen this node for a while or if it failed findnode too often.
-	node, fails := tab.db.node(id), tab.db.findFails(id)
-	age := time.Since(tab.db.bondTime(id))
-	var result error
-	if fails > 0 || age > nodeDBNodeExpiration {
-		log.Trace("Starting bonding ping/pong", "id", id, "known", node != nil, "failcount", fails, "age", age)
-
-		tab.bondmu.Lock()
-		w := tab.bonding[id]
-		if w != nil {
-			// Wait for an existing bonding process to complete.
-			tab.bondmu.Unlock()
-			<-w.done
-		} else {
-			// Register a new bonding process.
-			w = &bondproc{done: make(chan struct{})}
-			tab.bonding[id] = w
-			tab.bondmu.Unlock()
-			// Do the ping/pong. The result goes into w.
-			tab.pingpong(w, pinged, id, addr, tcpPort)
-			// Unregister the process after it's done.
-			tab.bondmu.Lock()
-			delete(tab.bonding, id)
-			tab.bondmu.Unlock()
-		}
-		// Retrieve the bonding results
-		result = w.err
-		if result == nil {
-			node = w.n
-		}
-	}
-	// Add the node to the table even if the bonding ping/pong
-	// fails. It will be relaced quickly if it continues to be
-	// unresponsive.
-	if node != nil {
-		tab.add(node)
-		tab.db.updateFindFails(id, 0)
-	}
-	return node, result
-}
-
-func (tab *Table) pingpong(w *bondproc, pinged bool, id NodeID, addr *net.UDPAddr, tcpPort uint16) {
-	// Request a bonding slot to limit network usage
-	<-tab.bondslots
-	defer func() { tab.bondslots <- struct{}{} }()
-
-	// Ping the remote side and wait for a pong.
-	if w.err = tab.ping(id, addr); w.err != nil {
-		close(w.done)
-		return
-	}
-	if !pinged {
-		// Give the remote node a chance to ping us before we start
-		// sending findnode requests. If they still remember us,
-		// waitping will simply time out.
-		tab.net.waitping(id)
-	}
-	// Bonding succeeded, update the node database.
-	w.n = NewNode(id, addr.IP, uint16(addr.Port), tcpPort)
-	close(w.done)
-}
-
-// ping a remote endpoint and wait for a reply, also updating the node
-// database accordingly.
-func (tab *Table) ping(id NodeID, addr *net.UDPAddr) error {
-	tab.db.updateLastPing(id, time.Now())
-	if err := tab.net.ping(id, addr); err != nil {
-		return err
-	}
-	tab.db.updateBondTime(id, time.Now())
-	return nil
-}
-
 // bucket returns the bucket for the given node ID hash.
 func (tab *Table) bucket(sha common.Hash) *bucket {
 	d := logdist(tab.self.sha, sha)
@@ -676,23 +548,35 @@ func (tab *Table) bucket(sha common.Hash) *bucket {
 	return tab.buckets[d-bucketMinDistance-1]
 }
 
-// add attempts to add the given node its corresponding bucket. If the
+// add attempts to add the given node to its corresponding bucket. If the bucket has space
-// bucket has space available, adding the node succeeds immediately.
+// available, adding the node succeeds immediately. Otherwise, the node is added if the
-// Otherwise, the node is added if the least recently active node in
+// least recently active node in the bucket does not respond to a ping packet.
-// the bucket does not respond to a ping packet.
 //
 // The caller must not hold tab.mutex.
-func (tab *Table) add(new *Node) {
+func (tab *Table) add(n *Node) {
 	tab.mutex.Lock()
 	defer tab.mutex.Unlock()
 
-	b := tab.bucket(new.sha)
+	b := tab.bucket(n.sha)
-	if !tab.bumpOrAdd(b, new) {
+	if !tab.bumpOrAdd(b, n) {
 		// Node is not in table. Add it to the replacement list.
-		tab.addReplacement(b, new)
+		tab.addReplacement(b, n)
 	}
 }
 
+// addThroughPing adds the given node to the table. Compared to plain
+// 'add' there is an additional safety measure: if the table is still
+// initializing the node is not added. This prevents an attack where the
+// table could be filled by just sending ping repeatedly.
+//
+// The caller must not hold tab.mutex.
+func (tab *Table) addThroughPing(n *Node) {
+	if !tab.isInitDone() {
+		return
+	}
+	tab.add(n)
+}
+
 // stuff adds nodes the table to the end of their corresponding bucket
 // if the bucket is not full. The caller must not hold tab.mutex.
 func (tab *Table) stuff(nodes []*Node) {
@@ -710,8 +594,7 @@ func (tab *Table) stuff(nodes []*Node) {
 	}
 }
 
-// delete removes an entry from the node table (used to evacuate
+// delete removes an entry from the node table. It is used to evacuate dead nodes.
-// failed/non-bonded discovery peers).
 func (tab *Table) delete(node *Node) {
 	tab.mutex.Lock()
 	defer tab.mutex.Unlock()

p2p/discover/table_test.go

@@ -52,27 +52,22 @@ func testPingReplace(t *testing.T, newNodeIsResponding, lastInBucketIsResponding
 	tab, _ := newTable(transport, NodeID{}, &net.UDPAddr{}, "", nil)
 	defer tab.Close()
 
-	// Wait for init so bond is accepted.
 	<-tab.initDone
 
-	// fill up the sender's bucket.
+	// Fill up the sender's bucket.
 	pingSender := NewNode(MustHexID("a502af0f59b2aab7746995408c79e9ca312d2793cc997e44fc55eda62f0150bbb8c59a6f9269ba3a081518b62699ee807c7c19c20125ddfccca872608af9e370"), net.IP{}, 99, 99)
 	last := fillBucket(tab, pingSender)
 
-	// this call to bond should replace the last node
+	// Add the sender as if it just pinged us. Revalidate should replace the last node in
-	// in its bucket if the node is not responding.
+	// its bucket if it is unresponsive. Revalidate again to ensure that
 	transport.dead[last.ID] = !lastInBucketIsResponding
 	transport.dead[pingSender.ID] = !newNodeIsResponding
-	tab.bond(true, pingSender.ID, &net.UDPAddr{}, 0)
+	tab.add(pingSender)
+	tab.doRevalidate(make(chan struct{}, 1))
 	tab.doRevalidate(make(chan struct{}, 1))
 
-	// first ping goes to sender (bonding pingback)
-	if !transport.pinged[pingSender.ID] {
-		t.Error("table did not ping back sender")
-	}
 	if !transport.pinged[last.ID] {
-		// second ping goes to oldest node in bucket
+		// Oldest node in bucket is pinged to see whether it is still alive.
-		// to see whether it is still alive.
 		t.Error("table did not ping last node in bucket")
 	}
 
@@ -83,7 +78,7 @@ func testPingReplace(t *testing.T, newNodeIsResponding, lastInBucketIsResponding
 		wantSize--
 	}
 	if l := len(tab.bucket(pingSender.sha).entries); l != wantSize {
-		t.Errorf("wrong bucket size after bond: got %d, want %d", l, wantSize)
+		t.Errorf("wrong bucket size after add: got %d, want %d", l, wantSize)
 	}
 	if found := contains(tab.bucket(pingSender.sha).entries, last.ID); found != lastInBucketIsResponding {
 		t.Errorf("last entry found: %t, want: %t", found, lastInBucketIsResponding)
@@ -206,10 +201,7 @@ func newPingRecorder() *pingRecorder {
 func (t *pingRecorder) findnode(toid NodeID, toaddr *net.UDPAddr, target NodeID) ([]*Node, error) {
 	return nil, nil
 }
-func (t *pingRecorder) close() {}
+
-func (t *pingRecorder) waitping(from NodeID) error {
-	return nil // remote always pings
-}
 func (t *pingRecorder) ping(toid NodeID, toaddr *net.UDPAddr) error {
 	t.mu.Lock()
 	defer t.mu.Unlock()
@@ -222,6 +214,8 @@ func (t *pingRecorder) ping(toid NodeID, toaddr *net.UDPAddr) error {
 	}
 }
 
+func (t *pingRecorder) close() {}
+
 func TestTable_closest(t *testing.T) {
 	t.Parallel()
 

p2p/discover/udp.go

@@ -32,8 +32,6 @@ import (
 	"github.com/ethereum/go-ethereum/rlp"
 )
 
-const Version = 4
-
 // Errors
 var (
 	errPacketTooSmall   = errors.New("too small")
@@ -272,21 +270,33 @@ func (t *udp) close() {
 
 // ping sends a ping message to the given node and waits for a reply.
 func (t *udp) ping(toid NodeID, toaddr *net.UDPAddr) error {
+	return <-t.sendPing(toid, toaddr, nil)
+}
+
+// sendPing sends a ping message to the given node and invokes the callback
+// when the reply arrives.
+func (t *udp) sendPing(toid NodeID, toaddr *net.UDPAddr, callback func()) <-chan error {
 	req := &ping{
-		Version:    Version,
+		Version:    4,
 		From:       t.ourEndpoint,
 		To:         makeEndpoint(toaddr, 0), // TODO: maybe use known TCP port from DB
 		Expiration: uint64(time.Now().Add(expiration).Unix()),
 	}
 	packet, hash, err := encodePacket(t.priv, pingPacket, req)
 	if err != nil {
-		return err
+		errc := make(chan error, 1)
+		errc <- err
+		return errc
 	}
 	errc := t.pending(toid, pongPacket, func(p interface{}) bool {
-		return bytes.Equal(p.(*pong).ReplyTok, hash)
+		ok := bytes.Equal(p.(*pong).ReplyTok, hash)
+		if ok && callback != nil {
+			callback()
+		}
+		return ok
 	})
 	t.write(toaddr, req.name(), packet)
-	return <-errc
+	return errc
 }
 
 func (t *udp) waitping(from NodeID) error {
@@ -296,6 +306,13 @@ func (t *udp) waitping(from NodeID) error {
 // findnode sends a findnode request to the given node and waits until
 // the node has sent up to k neighbors.
 func (t *udp) findnode(toid NodeID, toaddr *net.UDPAddr, target NodeID) ([]*Node, error) {
+	// If we haven't seen a ping from the destination node for a while, it won't remember
+	// our endpoint proof and reject findnode. Solicit a ping first.
+	if time.Since(t.db.lastPingReceived(toid)) > nodeDBNodeExpiration {
+		t.ping(toid, toaddr)
+		t.waitping(toid)
+	}
+
 	nodes := make([]*Node, 0, bucketSize)
 	nreceived := 0
 	errc := t.pending(toid, neighborsPacket, func(r interface{}) bool {
@@ -315,8 +332,7 @@ func (t *udp) findnode(toid NodeID, toaddr *net.UDPAddr, target NodeID) ([]*Node
 		Target:     target,
 		Expiration: uint64(time.Now().Add(expiration).Unix()),
 	})
-	err := <-errc
+	return nodes, <-errc
-	return nodes, err
 }
 
 // pending adds a reply callback to the pending reply queue.
@@ -587,10 +603,17 @@ func (req *ping) handle(t *udp, from *net.UDPAddr, fromID NodeID, mac []byte) er
 		ReplyTok:   mac,
 		Expiration: uint64(time.Now().Add(expiration).Unix()),
 	})
-	if !t.handleReply(fromID, pingPacket, req) {
+	t.handleReply(fromID, pingPacket, req)
-		// Note: we're ignoring the provided IP address right now
+
-		go t.bond(true, fromID, from, req.From.TCP)
+	// Add the node to the table. Before doing so, ensure that we have a recent enough pong
+	// recorded in the database so their findnode requests will be accepted later.
+	n := NewNode(fromID, from.IP, uint16(from.Port), req.From.TCP)
+	if time.Since(t.db.lastPongReceived(fromID)) > nodeDBNodeExpiration {
+		t.sendPing(fromID, from, func() { t.addThroughPing(n) })
+	} else {
+		t.addThroughPing(n)
 	}
+	t.db.updateLastPingReceived(fromID, time.Now())
 	return nil
 }
 
@@ -603,6 +626,7 @@ func (req *pong) handle(t *udp, from *net.UDPAddr, fromID NodeID, mac []byte) er
 	if !t.handleReply(fromID, pongPacket, req) {
 		return errUnsolicitedReply
 	}
+	t.db.updateLastPongReceived(fromID, time.Now())
 	return nil
 }
 
@@ -613,13 +637,12 @@ func (req *findnode) handle(t *udp, from *net.UDPAddr, fromID NodeID, mac []byte
 		return errExpired
 	}
 	if !t.db.hasBond(fromID) {
-		// No bond exists, we don't process the packet. This prevents
+		// No endpoint proof pong exists, we don't process the packet. This prevents an
-		// an attack vector where the discovery protocol could be used
+		// attack vector where the discovery protocol could be used to amplify traffic in a
-		// to amplify traffic in a DDOS attack. A malicious actor
+		// DDOS attack. A malicious actor would send a findnode request with the IP address
-		// would send a findnode request with the IP address and UDP
+		// and UDP port of the target as the source address. The recipient of the findnode
-		// port of the target as the source address. The recipient of
+		// packet would then send a neighbors packet (which is a much bigger packet than
-		// the findnode packet would then send a neighbors packet
+		// findnode) to the victim.
-		// (which is a much bigger packet than findnode) to the victim.
 		return errUnknownNode
 	}
 	target := crypto.Keccak256Hash(req.Target[:])

p2p/discover/udp_test.go

@@ -124,7 +124,7 @@ func TestUDP_packetErrors(t *testing.T) {
 	test := newUDPTest(t)
 	defer test.table.Close()
 
-	test.packetIn(errExpired, pingPacket, &ping{From: testRemote, To: testLocalAnnounced, Version: Version})
+	test.packetIn(errExpired, pingPacket, &ping{From: testRemote, To: testLocalAnnounced, Version: 4})
 	test.packetIn(errUnsolicitedReply, pongPacket, &pong{ReplyTok: []byte{}, Expiration: futureExp})
 	test.packetIn(errUnknownNode, findnodePacket, &findnode{Expiration: futureExp})
 	test.packetIn(errUnsolicitedReply, neighborsPacket, &neighbors{Expiration: futureExp})
@@ -247,7 +247,7 @@ func TestUDP_findnode(t *testing.T) {
 
 	// ensure there's a bond with the test node,
 	// findnode won't be accepted otherwise.
-	test.table.db.updateBondTime(PubkeyID(&test.remotekey.PublicKey), time.Now())
+	test.table.db.updateLastPongReceived(PubkeyID(&test.remotekey.PublicKey), time.Now())
 
 	// check that closest neighbors are returned.
 	test.packetIn(nil, findnodePacket, &findnode{Target: testTarget, Expiration: futureExp})
@@ -273,10 +273,12 @@ func TestUDP_findnodeMultiReply(t *testing.T) {
 	test := newUDPTest(t)
 	defer test.table.Close()
 
+	rid := PubkeyID(&test.remotekey.PublicKey)
+	test.table.db.updateLastPingReceived(rid, time.Now())
+
 	// queue a pending findnode request
 	resultc, errc := make(chan []*Node), make(chan error)
 	go func() {
-		rid := PubkeyID(&test.remotekey.PublicKey)
 		ns, err := test.udp.findnode(rid, test.remoteaddr, testTarget)
 		if err != nil && len(ns) == 0 {
 			errc <- err
@@ -328,7 +330,7 @@ func TestUDP_successfulPing(t *testing.T) {
 	defer test.table.Close()
 
 	// The remote side sends a ping packet to initiate the exchange.
-	go test.packetIn(nil, pingPacket, &ping{From: testRemote, To: testLocalAnnounced, Version: Version, Expiration: futureExp})
+	go test.packetIn(nil, pingPacket, &ping{From: testRemote, To: testLocalAnnounced, Version: 4, Expiration: futureExp})
 
 	// the ping is replied to.
 	test.waitPacketOut(func(p *pong) {

p2p/metrics.go

@@ -31,10 +31,10 @@ var (
 	egressTrafficMeter  = metrics.NewRegisteredMeter("p2p/OutboundTraffic", nil)
 )
 
-// meteredConn is a wrapper around a network TCP connection that meters both the
+// meteredConn is a wrapper around a net.Conn that meters both the
 // inbound and outbound network traffic.
 type meteredConn struct {
-	*net.TCPConn // Network connection to wrap with metering
+	net.Conn // Network connection to wrap with metering
 }
 
 // newMeteredConn creates a new metered connection, also bumping the ingress or
@@ -51,13 +51,13 @@ func newMeteredConn(conn net.Conn, ingress bool) net.Conn {
 	} else {
 		egressConnectMeter.Mark(1)
 	}
-	return &meteredConn{conn.(*net.TCPConn)}
+	return &meteredConn{Conn: conn}
 }
 
 // Read delegates a network read to the underlying connection, bumping the ingress
 // traffic meter along the way.
 func (c *meteredConn) Read(b []byte) (n int, err error) {
-	n, err = c.TCPConn.Read(b)
+	n, err = c.Conn.Read(b)
 	ingressTrafficMeter.Mark(int64(n))
 	return
 }
@@ -65,7 +65,7 @@ func (c *meteredConn) Read(b []byte) (n int, err error) {
 // Write delegates a network write to the underlying connection, bumping the
 // egress traffic meter along the way.
 func (c *meteredConn) Write(b []byte) (n int, err error) {
-	n, err = c.TCPConn.Write(b)
+	n, err = c.Conn.Write(b)
 	egressTrafficMeter.Mark(int64(n))
 	return
 }

p2p/peer.go

@@ -17,6 +17,7 @@
 package p2p
 
 import (
+	"errors"
 	"fmt"
 	"io"
 	"net"
@@ -31,6 +32,10 @@ import (
 	"github.com/ethereum/go-ethereum/rlp"
 )
 
+var (
+	ErrShuttingDown = errors.New("shutting down")
+)
+
 const (
 	baseProtocolVersion    = 5
 	baseProtocolLength     = uint64(16)
@@ -393,7 +398,7 @@ func (rw *protoRW) WriteMsg(msg Msg) (err error) {
 		// as well but we don't want to rely on that.
 		rw.werr <- err
 	case <-rw.closed:
-		err = fmt.Errorf("shutting down")
+		err = ErrShuttingDown
 	}
 	return err
 }

p2p/protocols/protocol.go

@@ -31,10 +31,12 @@ package protocols
 import (
 	"context"
 	"fmt"
+	"io"
 	"reflect"
 	"sync"
 	"time"
 
+	"github.com/ethereum/go-ethereum/log"
 	"github.com/ethereum/go-ethereum/metrics"
 	"github.com/ethereum/go-ethereum/p2p"
 )
@@ -202,6 +204,11 @@ func NewPeer(p *p2p.Peer, rw p2p.MsgReadWriter, spec *Spec) *Peer {
 func (p *Peer) Run(handler func(msg interface{}) error) error {
 	for {
 		if err := p.handleIncoming(handler); err != nil {
+			if err != io.EOF {
+				metrics.GetOrRegisterCounter("peer.handleincoming.error", nil).Inc(1)
+				log.Error("peer.handleIncoming", "err", err)
+			}
+
 			return err
 		}
 	}

p2p/simulations/network.go

@@ -31,7 +31,7 @@ import (
 	"github.com/ethereum/go-ethereum/p2p/simulations/adapters"
 )
 
-var dialBanTimeout = 200 * time.Millisecond
+var DialBanTimeout = 200 * time.Millisecond
 
 // NetworkConfig defines configuration options for starting a Network
 type NetworkConfig struct {
@@ -78,41 +78,25 @@ func (net *Network) Events() *event.Feed {
 	return &net.events
 }
 
-// NewNode adds a new node to the network with a random ID
-func (net *Network) NewNode() (*Node, error) {
-	conf := adapters.RandomNodeConfig()
-	conf.Services = []string{net.DefaultService}
-	return net.NewNodeWithConfig(conf)
-}
-
 // NewNodeWithConfig adds a new node to the network with the given config,
 // returning an error if a node with the same ID or name already exists
 func (net *Network) NewNodeWithConfig(conf *adapters.NodeConfig) (*Node, error) {
 	net.lock.Lock()
 	defer net.lock.Unlock()
 
-	// create a random ID and PrivateKey if not set
-	if conf.ID == (discover.NodeID{}) {
-		c := adapters.RandomNodeConfig()
-		conf.ID = c.ID
-		conf.PrivateKey = c.PrivateKey
-	}
-	id := conf.ID
 	if conf.Reachable == nil {
 		conf.Reachable = func(otherID discover.NodeID) bool {
 			_, err := net.InitConn(conf.ID, otherID)
-			return err == nil
+			if err != nil && bytes.Compare(conf.ID.Bytes(), otherID.Bytes()) < 0 {
+				return false
 			}
+			return true
 		}
-
-	// assign a name to the node if not set
-	if conf.Name == "" {
-		conf.Name = fmt.Sprintf("node%02d", len(net.Nodes)+1)
 	}
 
 	// check the node doesn't already exist
-	if node := net.getNode(id); node != nil {
+	if node := net.getNode(conf.ID); node != nil {
-		return nil, fmt.Errorf("node with ID %q already exists", id)
+		return nil, fmt.Errorf("node with ID %q already exists", conf.ID)
 	}
 	if node := net.getNodeByName(conf.Name); node != nil {
 		return nil, fmt.Errorf("node with name %q already exists", conf.Name)
@@ -132,8 +116,8 @@ func (net *Network) NewNodeWithConfig(conf *adapters.NodeConfig) (*Node, error)
 		Node:   adapterNode,
 		Config: conf,
 	}
-	log.Trace(fmt.Sprintf("node %v created", id))
+	log.Trace(fmt.Sprintf("node %v created", conf.ID))
-	net.nodeMap[id] = len(net.Nodes)
+	net.nodeMap[conf.ID] = len(net.Nodes)
 	net.Nodes = append(net.Nodes, node)
 
 	// emit a "control" event
@@ -181,7 +165,9 @@ func (net *Network) Start(id discover.NodeID) error {
 // startWithSnapshots starts the node with the given ID using the give
 // snapshots
 func (net *Network) startWithSnapshots(id discover.NodeID, snapshots map[string][]byte) error {
-	node := net.GetNode(id)
+	net.lock.Lock()
+	defer net.lock.Unlock()
+	node := net.getNode(id)
 	if node == nil {
 		return fmt.Errorf("node %v does not exist", id)
 	}
@@ -220,9 +206,13 @@ func (net *Network) watchPeerEvents(id discover.NodeID, events chan *p2p.PeerEve
 
 		// assume the node is now down
 		net.lock.Lock()
+		defer net.lock.Unlock()
 		node := net.getNode(id)
+		if node == nil {
+			log.Error("Can not find node for id", "id", id)
+			return
+		}
 		node.Up = false
-		net.lock.Unlock()
 		net.events.Send(NewEvent(node))
 	}()
 	for {
@@ -259,7 +249,9 @@ func (net *Network) watchPeerEvents(id discover.NodeID, events chan *p2p.PeerEve
 
 // Stop stops the node with the given ID
 func (net *Network) Stop(id discover.NodeID) error {
-	node := net.GetNode(id)
+	net.lock.Lock()
+	defer net.lock.Unlock()
+	node := net.getNode(id)
 	if node == nil {
 		return fmt.Errorf("node %v does not exist", id)
 	}
@@ -312,7 +304,9 @@ func (net *Network) Disconnect(oneID, otherID discover.NodeID) error {
 
 // DidConnect tracks the fact that the "one" node connected to the "other" node
 func (net *Network) DidConnect(one, other discover.NodeID) error {
-	conn, err := net.GetOrCreateConn(one, other)
+	net.lock.Lock()
+	defer net.lock.Unlock()
+	conn, err := net.getOrCreateConn(one, other)
 	if err != nil {
 		return fmt.Errorf("connection between %v and %v does not exist", one, other)
 	}
@@ -327,7 +321,9 @@ func (net *Network) DidConnect(one, other discover.NodeID) error {
 // DidDisconnect tracks the fact that the "one" node disconnected from the
 // "other" node
 func (net *Network) DidDisconnect(one, other discover.NodeID) error {
-	conn := net.GetConn(one, other)
+	net.lock.Lock()
+	defer net.lock.Unlock()
+	conn := net.getConn(one, other)
 	if conn == nil {
 		return fmt.Errorf("connection between %v and %v does not exist", one, other)
 	}
@@ -335,7 +331,7 @@ func (net *Network) DidDisconnect(one, other discover.NodeID) error {
 		return fmt.Errorf("%v and %v already disconnected", one, other)
 	}
 	conn.Up = false
-	conn.initiated = time.Now().Add(-dialBanTimeout)
+	conn.initiated = time.Now().Add(-DialBanTimeout)
 	net.events.Send(NewEvent(conn))
 	return nil
 }
@@ -476,16 +472,19 @@ func (net *Network) InitConn(oneID, otherID discover.NodeID) (*Conn, error) {
 	if err != nil {
 		return nil, err
 	}
-	if time.Since(conn.initiated) < dialBanTimeout {
-		return nil, fmt.Errorf("connection between %v and %v recently attempted", oneID, otherID)
-	}
 	if conn.Up {
 		return nil, fmt.Errorf("%v and %v already connected", oneID, otherID)
 	}
+	if time.Since(conn.initiated) < DialBanTimeout {
+		return nil, fmt.Errorf("connection between %v and %v recently attempted", oneID, otherID)
+	}
+
 	err = conn.nodesUp()
 	if err != nil {
+		log.Trace(fmt.Sprintf("nodes not up: %v", err))
 		return nil, fmt.Errorf("nodes not up: %v", err)
 	}
+	log.Debug("InitConn - connection initiated")
 	conn.initiated = time.Now()
 	return conn, nil
 }

p2p/testing/protocolsession.go

@@ -91,7 +91,9 @@ func (s *ProtocolSession) trigger(trig Trigger) error {
 	errc := make(chan error)
 
 	go func() {
+		log.Trace(fmt.Sprintf("trigger %v (%v)....", trig.Msg, trig.Code))
 		errc <- mockNode.Trigger(&trig)
+		log.Trace(fmt.Sprintf("triggered %v (%v)", trig.Msg, trig.Code))
 	}()
 
 	t := trig.Timeout

params/version.go

@@ -23,7 +23,7 @@ import (
 const (
 	VersionMajor = 1          // Major version component of the current release
 	VersionMinor = 8          // Minor version component of the current release
-	VersionPatch = 12         // Patch version component of the current release
+	VersionPatch = 13         // Patch version component of the current release
 	VersionMeta  = "unstable" // Version metadata to append to the version string
 )
 

rpc/client.go

@@ -304,7 +304,7 @@ func (c *Client) CallContext(ctx context.Context, result interface{}, method str
 		return err
 	}
 
-	// dispatch has accepted the request and will close the channel it when it quits.
+	// dispatch has accepted the request and will close the channel when it quits.
 	switch resp, err := op.wait(ctx); {
 	case err != nil:
 		return err

signer/core/api.go

@@ -189,15 +189,6 @@ type (
 
 var ErrRequestDenied = errors.New("Request denied")
 
-type errorWrapper struct {
-	msg string
-	err error
-}
-
-func (ew errorWrapper) String() string {
-	return fmt.Sprintf("%s\n%s", ew.msg, ew.err)
-}
-
 // NewSignerAPI creates a new API that can be used for Account management.
 // ksLocation specifies the directory where to store the password protected private
 // key that is generated when a new Account is created.

swarm/AUTHORS

@@ -0,0 +1,35 @@
+# Core team members
+
+Viktor Trón - @zelig
+Louis Holbrook - @nolash
+Lewis Marshall - @lmars
+Anton Evangelatov - @nonsense
+Janoš Guljaš - @janos
+Balint Gabor - @gbalint
+Elad Nachmias - @justelad
+Daniel A. Nagy - @nagydani
+Aron Fischer - @homotopycolimit
+Fabio Barone - @holisticode
+Zahoor Mohamed - @jmozah
+Zsolt Felföldi - @zsfelfoldi
+
+# External contributors
+
+Kiel Barry
+Gary Rong 
+Jared Wasinger 
+Leon Stanko
+Javier Peletier [epiclabs.io]
+Bartek Borkowski [tungsten-labs.com]
+Shane Howley [mainframe.com]
+Doug Leonard [mainframe.com]
+Ivan Daniluk [status.im]
+Felix Lange [EF]
+Martin Holst Swende [EF]
+Guillaume Ballet [EF]
+ligi [EF]
+Christopher Dro [blick-labs.com]
+Sergii Bomko [ledgerleopard.com]
+Domino Valdano 
+Rafael Matias 
+Coogan Brennan

swarm/OWNERS

@@ -0,0 +1,26 @@
+# Ownership by go packages
+
+swarm
+├── api ─────────────────── ethersphere
+├── bmt ─────────────────── @zelig
+├── dev ─────────────────── @lmars
+├── fuse ────────────────── @jmozah, @holisticode
+├── grafana_dashboards ──── @nonsense
+├── metrics ─────────────── @nonsense, @holisticode
+├── multihash ───────────── @nolash
+├── network ─────────────── ethersphere
+│   ├── bitvector ───────── @zelig, @janos, @gbalint
+│   ├── priorityqueue ───── @zelig, @janos, @gbalint
+│   ├── simulations ─────── @zelig
+│   └── stream ──────────── @janos, @zelig, @gbalint, @holisticode, @justelad
+│       ├── intervals ───── @janos
+│       └── testing ─────── @zelig
+├── pot ─────────────────── @zelig
+├── pss ─────────────────── @nolash, @zelig, @nonsense
+├── services ────────────── @zelig
+├── state ───────────────── @justelad
+├── storage ─────────────── ethersphere
+│   ├── encryption ──────── @gbalint, @zelig, @nagydani
+│   ├── mock ────────────── @janos
+│   └── mru ─────────────── @nolash
+└── testutil ────────────── @lmars

swarm/api/api.go

@@ -17,13 +17,13 @@
 package api
 
 import (
+	"context"
 	"fmt"
 	"io"
+	"math/big"
 	"net/http"
 	"path"
-	"regexp"
 	"strings"
-	"sync"
 
 	"bytes"
 	"mime"
@@ -31,14 +31,15 @@ import (
 	"time"
 
 	"github.com/ethereum/go-ethereum/common"
-	"github.com/ethereum/go-ethereum/log"
+	"github.com/ethereum/go-ethereum/contracts/ens"
+	"github.com/ethereum/go-ethereum/core/types"
 	"github.com/ethereum/go-ethereum/metrics"
+	"github.com/ethereum/go-ethereum/swarm/log"
+	"github.com/ethereum/go-ethereum/swarm/multihash"
 	"github.com/ethereum/go-ethereum/swarm/storage"
+	"github.com/ethereum/go-ethereum/swarm/storage/mru"
 )
 
-var hashMatcher = regexp.MustCompile("^[0-9A-Fa-f]{64}")
-
-//setup metrics
 var (
 	apiResolveCount    = metrics.NewRegisteredCounter("api.resolve.count", nil)
 	apiResolveFail     = metrics.NewRegisteredCounter("api.resolve.fail", nil)
@@ -46,7 +47,7 @@ var (
 	apiPutFail         = metrics.NewRegisteredCounter("api.put.fail", nil)
 	apiGetCount        = metrics.NewRegisteredCounter("api.get.count", nil)
 	apiGetNotFound     = metrics.NewRegisteredCounter("api.get.notfound", nil)
-	apiGetHttp300      = metrics.NewRegisteredCounter("api.get.http.300", nil)
+	apiGetHTTP300      = metrics.NewRegisteredCounter("api.get.http.300", nil)
 	apiModifyCount     = metrics.NewRegisteredCounter("api.modify.count", nil)
 	apiModifyFail      = metrics.NewRegisteredCounter("api.modify.fail", nil)
 	apiAddFileCount    = metrics.NewRegisteredCounter("api.addfile.count", nil)
@@ -55,22 +56,33 @@ var (
 	apiRmFileFail      = metrics.NewRegisteredCounter("api.removefile.fail", nil)
 	apiAppendFileCount = metrics.NewRegisteredCounter("api.appendfile.count", nil)
 	apiAppendFileFail  = metrics.NewRegisteredCounter("api.appendfile.fail", nil)
+	apiGetInvalid      = metrics.NewRegisteredCounter("api.get.invalid", nil)
 )
 
+// Resolver interface resolve a domain name to a hash using ENS
 type Resolver interface {
 	Resolve(string) (common.Hash, error)
 }
 
+// ResolveValidator is used to validate the contained Resolver
+type ResolveValidator interface {
+	Resolver
+	Owner(node [32]byte) (common.Address, error)
+	HeaderByNumber(context.Context, *big.Int) (*types.Header, error)
+}
+
 // NoResolverError is returned by MultiResolver.Resolve if no resolver
 // can be found for the address.
 type NoResolverError struct {
 	TLD string
 }
 
+// NewNoResolverError creates a NoResolverError for the given top level domain
 func NewNoResolverError(tld string) *NoResolverError {
 	return &NoResolverError{TLD: tld}
 }
 
+// Error NoResolverError implements error
 func (e *NoResolverError) Error() string {
 	if e.TLD == "" {
 		return "no ENS resolver"
@@ -82,7 +94,8 @@ func (e *NoResolverError) Error() string {
 // Each TLD can have multiple resolvers, and the resoluton from the
 // first one in the sequence will be returned.
 type MultiResolver struct {
-	resolvers map[string][]Resolver
+	resolvers map[string][]ResolveValidator
+	nameHash  func(string) common.Hash
 }
 
 // MultiResolverOption sets options for MultiResolver and is used as
@@ -93,16 +106,24 @@ type MultiResolverOption func(*MultiResolver)
 // for a specific TLD. If TLD is an empty string, the resolver will be added
 // to the list of default resolver, the ones that will be used for resolution
 // of addresses which do not have their TLD resolver specified.
-func MultiResolverOptionWithResolver(r Resolver, tld string) MultiResolverOption {
+func MultiResolverOptionWithResolver(r ResolveValidator, tld string) MultiResolverOption {
 	return func(m *MultiResolver) {
 		m.resolvers[tld] = append(m.resolvers[tld], r)
 	}
 }
 
+// MultiResolverOptionWithNameHash is unused at the time of this writing
+func MultiResolverOptionWithNameHash(nameHash func(string) common.Hash) MultiResolverOption {
+	return func(m *MultiResolver) {
+		m.nameHash = nameHash
+	}
+}
+
 // NewMultiResolver creates a new instance of MultiResolver.
 func NewMultiResolver(opts ...MultiResolverOption) (m *MultiResolver) {
 	m = &MultiResolver{
-		resolvers: make(map[string][]Resolver),
+		resolvers: make(map[string][]ResolveValidator),
+		nameHash:  ens.EnsNode,
 	}
 	for _, o := range opts {
 		o(m)
@@ -114,18 +135,10 @@ func NewMultiResolver(opts ...MultiResolverOption) (m *MultiResolver) {
 // If there are more default Resolvers, or for a specific TLD,
 // the Hash from the the first one which does not return error
 // will be returned.
-func (m MultiResolver) Resolve(addr string) (h common.Hash, err error) {
+func (m *MultiResolver) Resolve(addr string) (h common.Hash, err error) {
-	rs := m.resolvers[""]
+	rs, err := m.getResolveValidator(addr)
-	tld := path.Ext(addr)
+	if err != nil {
-	if tld != "" {
+		return h, err
-		tld = tld[1:]
-		rstld, ok := m.resolvers[tld]
-		if ok {
-			rs = rstld
-		}
-	}
-	if rs == nil {
-		return h, NewNoResolverError(tld)
 	}
 	for _, r := range rs {
 		h, err = r.Resolve(addr)
@@ -136,104 +149,174 @@ func (m MultiResolver) Resolve(addr string) (h common.Hash, err error) {
 	return
 }
 
+// ValidateOwner checks the ENS to validate that the owner of the given domain is the given eth address
+func (m *MultiResolver) ValidateOwner(name string, address common.Address) (bool, error) {
+	rs, err := m.getResolveValidator(name)
+	if err != nil {
+		return false, err
+	}
+	var addr common.Address
+	for _, r := range rs {
+		addr, err = r.Owner(m.nameHash(name))
+		// we hide the error if it is not for the last resolver we check
+		if err == nil {
+			return addr == address, nil
+		}
+	}
+	return false, err
+}
+
+// HeaderByNumber uses the validator of the given domainname and retrieves the header for the given block number
+func (m *MultiResolver) HeaderByNumber(ctx context.Context, name string, blockNr *big.Int) (*types.Header, error) {
+	rs, err := m.getResolveValidator(name)
+	if err != nil {
+		return nil, err
+	}
+	for _, r := range rs {
+		var header *types.Header
+		header, err = r.HeaderByNumber(ctx, blockNr)
+		// we hide the error if it is not for the last resolver we check
+		if err == nil {
+			return header, nil
+		}
+	}
+	return nil, err
+}
+
+// getResolveValidator uses the hostname to retrieve the resolver associated with the top level domain
+func (m *MultiResolver) getResolveValidator(name string) ([]ResolveValidator, error) {
+	rs := m.resolvers[""]
+	tld := path.Ext(name)
+	if tld != "" {
+		tld = tld[1:]
+		rstld, ok := m.resolvers[tld]
+		if ok {
+			return rstld, nil
+		}
+	}
+	if len(rs) == 0 {
+		return rs, NewNoResolverError(tld)
+	}
+	return rs, nil
+}
+
+// SetNameHash sets the hasher function that hashes the domain into a name hash that ENS uses
+func (m *MultiResolver) SetNameHash(nameHash func(string) common.Hash) {
+	m.nameHash = nameHash
+}
+
 /*
-Api implements webserver/file system related content storage and retrieval
+API implements webserver/file system related content storage and retrieval
-on top of the dpa
+on top of the FileStore
-it is the public interface of the dpa which is included in the ethereum stack
+it is the public interface of the FileStore which is included in the ethereum stack
 */
-type Api struct {
+type API struct {
-	dpa *storage.DPA
+	resource  *mru.Handler
+	fileStore *storage.FileStore
 	dns       Resolver
 }
 
-//the api constructor initialises
+// NewAPI the api constructor initialises a new API instance.
-func NewApi(dpa *storage.DPA, dns Resolver) (self *Api) {
+func NewAPI(fileStore *storage.FileStore, dns Resolver, resourceHandler *mru.Handler) (self *API) {
-	self = &Api{
+	self = &API{
-		dpa: dpa,
+		fileStore: fileStore,
 		dns:       dns,
+		resource:  resourceHandler,
 	}
 	return
 }
 
-// to be used only in TEST
+// Upload to be used only in TEST
-func (self *Api) Upload(uploadDir, index string) (hash string, err error) {
+func (a *API) Upload(ctx context.Context, uploadDir, index string, toEncrypt bool) (hash string, err error) {
-	fs := NewFileSystem(self)
+	fs := NewFileSystem(a)
-	hash, err = fs.Upload(uploadDir, index)
+	hash, err = fs.Upload(uploadDir, index, toEncrypt)
 	return hash, err
 }
 
-// DPA reader API
+// Retrieve FileStore reader API
-func (self *Api) Retrieve(key storage.Key) storage.LazySectionReader {
+func (a *API) Retrieve(ctx context.Context, addr storage.Address) (reader storage.LazySectionReader, isEncrypted bool) {
-	return self.dpa.Retrieve(key)
+	return a.fileStore.Retrieve(ctx, addr)
 }
 
-func (self *Api) Store(data io.Reader, size int64, wg *sync.WaitGroup) (key storage.Key, err error) {
+// Store wraps the Store API call of the embedded FileStore
-	return self.dpa.Store(data, size, wg, nil)
+func (a *API) Store(ctx context.Context, data io.Reader, size int64, toEncrypt bool) (addr storage.Address, wait func(ctx context.Context) error, err error) {
+	log.Debug("api.store", "size", size)
+	return a.fileStore.Store(ctx, data, size, toEncrypt)
 }
 
+// ErrResolve is returned when an URI cannot be resolved from ENS.
 type ErrResolve error
 
-// DNS Resolver
+// Resolve resolves a URI to an Address using the MultiResolver.
-func (self *Api) Resolve(uri *URI) (storage.Key, error) {
+func (a *API) Resolve(ctx context.Context, uri *URI) (storage.Address, error) {
 	apiResolveCount.Inc(1)
-	log.Trace(fmt.Sprintf("Resolving : %v", uri.Addr))
+	log.Trace("resolving", "uri", uri.Addr)
 
-	// if the URI is immutable, check if the address is a hash
+	// if the URI is immutable, check if the address looks like a hash
-	isHash := hashMatcher.MatchString(uri.Addr)
+	if uri.Immutable() {
-	if uri.Immutable() || uri.DeprecatedImmutable() {
+		key := uri.Address()
-		if !isHash {
+		if key == nil {
 			return nil, fmt.Errorf("immutable address not a content hash: %q", uri.Addr)
 		}
-		return common.Hex2Bytes(uri.Addr), nil
+		return key, nil
 	}
 
 	// if DNS is not configured, check if the address is a hash
-	if self.dns == nil {
+	if a.dns == nil {
-		if !isHash {
+		key := uri.Address()
+		if key == nil {
 			apiResolveFail.Inc(1)
 			return nil, fmt.Errorf("no DNS to resolve name: %q", uri.Addr)
 		}
-		return common.Hex2Bytes(uri.Addr), nil
+		return key, nil
 	}
 
 	// try and resolve the address
-	resolved, err := self.dns.Resolve(uri.Addr)
+	resolved, err := a.dns.Resolve(uri.Addr)
 	if err == nil {
 		return resolved[:], nil
-	} else if !isHash {
+	}
+
+	key := uri.Address()
+	if key == nil {
 		apiResolveFail.Inc(1)
 		return nil, err
 	}
-	return common.Hex2Bytes(uri.Addr), nil
-}
-
-// Put provides singleton manifest creation on top of dpa store
-func (self *Api) Put(content, contentType string) (storage.Key, error) {
-	apiPutCount.Inc(1)
-	r := strings.NewReader(content)
-	wg := &sync.WaitGroup{}
-	key, err := self.dpa.Store(r, int64(len(content)), wg, nil)
-	if err != nil {
-		apiPutFail.Inc(1)
-		return nil, err
-	}
-	manifest := fmt.Sprintf(`{"entries":[{"hash":"%v","contentType":"%s"}]}`, key, contentType)
-	r = strings.NewReader(manifest)
-	key, err = self.dpa.Store(r, int64(len(manifest)), wg, nil)
-	if err != nil {
-		apiPutFail.Inc(1)
-		return nil, err
-	}
-	wg.Wait()
 	return key, nil
 }
 
+// Put provides singleton manifest creation on top of FileStore store
+func (a *API) Put(ctx context.Context, content string, contentType string, toEncrypt bool) (k storage.Address, wait func(context.Context) error, err error) {
+	apiPutCount.Inc(1)
+	r := strings.NewReader(content)
+	key, waitContent, err := a.fileStore.Store(ctx, r, int64(len(content)), toEncrypt)
+	if err != nil {
+		apiPutFail.Inc(1)
+		return nil, nil, err
+	}
+	manifest := fmt.Sprintf(`{"entries":[{"hash":"%v","contentType":"%s"}]}`, key, contentType)
+	r = strings.NewReader(manifest)
+	key, waitManifest, err := a.fileStore.Store(ctx, r, int64(len(manifest)), toEncrypt)
+	if err != nil {
+		apiPutFail.Inc(1)
+		return nil, nil, err
+	}
+	return key, func(ctx context.Context) error {
+		err := waitContent(ctx)
+		if err != nil {
+			return err
+		}
+		return waitManifest(ctx)
+	}, nil
+}
+
 // Get uses iterative manifest retrieval and prefix matching
-// to resolve basePath to content using dpa retrieve
+// to resolve basePath to content using FileStore retrieve
-// it returns a section reader, mimeType, status and an error
+// it returns a section reader, mimeType, status, the key of the actual content and an error
-func (self *Api) Get(key storage.Key, path string) (reader storage.LazySectionReader, mimeType string, status int, err error) {
+func (a *API) Get(ctx context.Context, manifestAddr storage.Address, path string) (reader storage.LazySectionReader, mimeType string, status int, contentAddr storage.Address, err error) {
+	log.Debug("api.get", "key", manifestAddr, "path", path)
 	apiGetCount.Inc(1)
-	trie, err := loadManifest(self.dpa, key, nil)
+	trie, err := loadManifest(ctx, a.fileStore, manifestAddr, nil)
 	if err != nil {
 		apiGetNotFound.Inc(1)
 		status = http.StatusNotFound
@@ -241,34 +324,111 @@ func (self *Api) Get(key storage.Key, path string) (reader storage.LazySectionRe
 		return
 	}
 
-	log.Trace(fmt.Sprintf("getEntry(%s)", path))
+	log.Debug("trie getting entry", "key", manifestAddr, "path", path)
-
 	entry, _ := trie.getEntry(path)
 
 	if entry != nil {
-		key = common.Hex2Bytes(entry.Hash)
+		log.Debug("trie got entry", "key", manifestAddr, "path", path, "entry.Hash", entry.Hash)
+		// we need to do some extra work if this is a mutable resource manifest
+		if entry.ContentType == ResourceContentType {
+
+			// get the resource root chunk key
+			log.Trace("resource type", "key", manifestAddr, "hash", entry.Hash)
+			ctx, cancel := context.WithCancel(context.Background())
+			defer cancel()
+			rsrc, err := a.resource.Load(storage.Address(common.FromHex(entry.Hash)))
+			if err != nil {
+				apiGetNotFound.Inc(1)
+				status = http.StatusNotFound
+				log.Debug(fmt.Sprintf("get resource content error: %v", err))
+				return reader, mimeType, status, nil, err
+			}
+
+			// use this key to retrieve the latest update
+			rsrc, err = a.resource.LookupLatest(ctx, rsrc.NameHash(), true, &mru.LookupParams{})
+			if err != nil {
+				apiGetNotFound.Inc(1)
+				status = http.StatusNotFound
+				log.Debug(fmt.Sprintf("get resource content error: %v", err))
+				return reader, mimeType, status, nil, err
+			}
+
+			// if it's multihash, we will transparently serve the content this multihash points to
+			// \TODO this resolve is rather expensive all in all, review to see if it can be achieved cheaper
+			if rsrc.Multihash {
+
+				// get the data of the update
+				_, rsrcData, err := a.resource.GetContent(rsrc.NameHash().Hex())
+				if err != nil {
+					apiGetNotFound.Inc(1)
+					status = http.StatusNotFound
+					log.Warn(fmt.Sprintf("get resource content error: %v", err))
+					return reader, mimeType, status, nil, err
+				}
+
+				// validate that data as multihash
+				decodedMultihash, err := multihash.FromMultihash(rsrcData)
+				if err != nil {
+					apiGetInvalid.Inc(1)
+					status = http.StatusUnprocessableEntity
+					log.Warn("invalid resource multihash", "err", err)
+					return reader, mimeType, status, nil, err
+				}
+				manifestAddr = storage.Address(decodedMultihash)
+				log.Trace("resource is multihash", "key", manifestAddr)
+
+				// get the manifest the multihash digest points to
+				trie, err := loadManifest(ctx, a.fileStore, manifestAddr, nil)
+				if err != nil {
+					apiGetNotFound.Inc(1)
+					status = http.StatusNotFound
+					log.Warn(fmt.Sprintf("loadManifestTrie (resource multihash) error: %v", err))
+					return reader, mimeType, status, nil, err
+				}
+
+				// finally, get the manifest entry
+				// it will always be the entry on path ""
+				entry, _ = trie.getEntry(path)
+				if entry == nil {
+					status = http.StatusNotFound
+					apiGetNotFound.Inc(1)
+					err = fmt.Errorf("manifest (resource multihash) entry for '%s' not found", path)
+					log.Trace("manifest (resource multihash) entry not found", "key", manifestAddr, "path", path)
+					return reader, mimeType, status, nil, err
+				}
+
+			} else {
+				// data is returned verbatim since it's not a multihash
+				return rsrc, "application/octet-stream", http.StatusOK, nil, nil
+			}
+		}
+
+		// regardless of resource update manifests or normal manifests we will converge at this point
+		// get the key the manifest entry points to and serve it if it's unambiguous
+		contentAddr = common.Hex2Bytes(entry.Hash)
 		status = entry.Status
 		if status == http.StatusMultipleChoices {
-			apiGetHttp300.Inc(1)
+			apiGetHTTP300.Inc(1)
-			return
+			return nil, entry.ContentType, status, contentAddr, err
-		} else {
-			mimeType = entry.ContentType
-			log.Trace(fmt.Sprintf("content lookup key: '%v' (%v)", key, mimeType))
-			reader = self.dpa.Retrieve(key)
 		}
+		mimeType = entry.ContentType
+		log.Debug("content lookup key", "key", contentAddr, "mimetype", mimeType)
+		reader, _ = a.fileStore.Retrieve(ctx, contentAddr)
 	} else {
+		// no entry found
 		status = http.StatusNotFound
 		apiGetNotFound.Inc(1)
 		err = fmt.Errorf("manifest entry for '%s' not found", path)
-		log.Warn(fmt.Sprintf("%v", err))
+		log.Trace("manifest entry not found", "key", contentAddr, "path", path)
 	}
 	return
 }
 
-func (self *Api) Modify(key storage.Key, path, contentHash, contentType string) (storage.Key, error) {
+// Modify loads manifest and checks the content hash before recalculating and storing the manifest.
+func (a *API) Modify(ctx context.Context, addr storage.Address, path, contentHash, contentType string) (storage.Address, error) {
 	apiModifyCount.Inc(1)
 	quitC := make(chan bool)
-	trie, err := loadManifest(self.dpa, key, quitC)
+	trie, err := loadManifest(ctx, a.fileStore, addr, quitC)
 	if err != nil {
 		apiModifyFail.Inc(1)
 		return nil, err
@@ -288,10 +448,11 @@ func (self *Api) Modify(key storage.Key, path, contentHash, contentType string)
 		apiModifyFail.Inc(1)
 		return nil, err
 	}
-	return trie.hash, nil
+	return trie.ref, nil
 }
 
-func (self *Api) AddFile(mhash, path, fname string, content []byte, nameresolver bool) (storage.Key, string, error) {
+// AddFile creates a new manifest entry, adds it to swarm, then adds a file to swarm.
+func (a *API) AddFile(ctx context.Context, mhash, path, fname string, content []byte, nameresolver bool) (storage.Address, string, error) {
 	apiAddFileCount.Inc(1)
 
 	uri, err := Parse("bzz:/" + mhash)
@@ -299,7 +460,7 @@ func (self *Api) AddFile(mhash, path, fname string, content []byte, nameresolver
 		apiAddFileFail.Inc(1)
 		return nil, "", err
 	}
-	mkey, err := self.Resolve(uri)
+	mkey, err := a.Resolve(ctx, uri)
 	if err != nil {
 		apiAddFileFail.Inc(1)
 		return nil, "", err
@@ -318,13 +479,13 @@ func (self *Api) AddFile(mhash, path, fname string, content []byte, nameresolver
 		ModTime:     time.Now(),
 	}
 
-	mw, err := self.NewManifestWriter(mkey, nil)
+	mw, err := a.NewManifestWriter(ctx, mkey, nil)
 	if err != nil {
 		apiAddFileFail.Inc(1)
 		return nil, "", err
 	}
 
-	fkey, err := mw.AddEntry(bytes.NewReader(content), entry)
+	fkey, err := mw.AddEntry(ctx, bytes.NewReader(content), entry)
 	if err != nil {
 		apiAddFileFail.Inc(1)
 		return nil, "", err
@@ -338,10 +499,10 @@ func (self *Api) AddFile(mhash, path, fname string, content []byte, nameresolver
 	}
 
 	return fkey, newMkey.String(), nil
-
 }
 
-func (self *Api) RemoveFile(mhash, path, fname string, nameresolver bool) (string, error) {
+// RemoveFile removes a file entry in a manifest.
+func (a *API) RemoveFile(ctx context.Context, mhash string, path string, fname string, nameresolver bool) (string, error) {
 	apiRmFileCount.Inc(1)
 
 	uri, err := Parse("bzz:/" + mhash)
@@ -349,7 +510,7 @@ func (self *Api) RemoveFile(mhash, path, fname string, nameresolver bool) (strin
 		apiRmFileFail.Inc(1)
 		return "", err
 	}
-	mkey, err := self.Resolve(uri)
+	mkey, err := a.Resolve(ctx, uri)
 	if err != nil {
 		apiRmFileFail.Inc(1)
 		return "", err
@@ -360,7 +521,7 @@ func (self *Api) RemoveFile(mhash, path, fname string, nameresolver bool) (strin
 		path = path[1:]
 	}
 
-	mw, err := self.NewManifestWriter(mkey, nil)
+	mw, err := a.NewManifestWriter(ctx, mkey, nil)
 	if err != nil {
 		apiRmFileFail.Inc(1)
 		return "", err
@@ -382,7 +543,8 @@ func (self *Api) RemoveFile(mhash, path, fname string, nameresolver bool) (strin
 	return newMkey.String(), nil
 }
 
-func (self *Api) AppendFile(mhash, path, fname string, existingSize int64, content []byte, oldKey storage.Key, offset int64, addSize int64, nameresolver bool) (storage.Key, string, error) {
+// AppendFile removes old manifest, appends file entry to new manifest and adds it to Swarm.
+func (a *API) AppendFile(ctx context.Context, mhash, path, fname string, existingSize int64, content []byte, oldAddr storage.Address, offset int64, addSize int64, nameresolver bool) (storage.Address, string, error) {
 	apiAppendFileCount.Inc(1)
 
 	buffSize := offset + addSize
@@ -392,7 +554,7 @@ func (self *Api) AppendFile(mhash, path, fname string, existingSize int64, conte
 
 	buf := make([]byte, buffSize)
 
-	oldReader := self.Retrieve(oldKey)
+	oldReader, _ := a.Retrieve(ctx, oldAddr)
 	io.ReadAtLeast(oldReader, buf, int(offset))
 
 	newReader := bytes.NewReader(content)
@@ -406,7 +568,7 @@ func (self *Api) AppendFile(mhash, path, fname string, existingSize int64, conte
 	totalSize := int64(len(buf))
 
 	// TODO(jmozah): to append using pyramid chunker when it is ready
-	//oldReader := self.Retrieve(oldKey)
+	//oldReader := a.Retrieve(oldKey)
 	//newReader := bytes.NewReader(content)
 	//combinedReader := io.MultiReader(oldReader, newReader)
 
@@ -415,7 +577,7 @@ func (self *Api) AppendFile(mhash, path, fname string, existingSize int64, conte
 		apiAppendFileFail.Inc(1)
 		return nil, "", err
 	}
-	mkey, err := self.Resolve(uri)
+	mkey, err := a.Resolve(ctx, uri)
 	if err != nil {
 		apiAppendFileFail.Inc(1)
 		return nil, "", err
@@ -426,7 +588,7 @@ func (self *Api) AppendFile(mhash, path, fname string, existingSize int64, conte
 		path = path[1:]
 	}
 
-	mw, err := self.NewManifestWriter(mkey, nil)
+	mw, err := a.NewManifestWriter(ctx, mkey, nil)
 	if err != nil {
 		apiAppendFileFail.Inc(1)
 		return nil, "", err
@@ -446,7 +608,7 @@ func (self *Api) AppendFile(mhash, path, fname string, existingSize int64, conte
 		ModTime:     time.Now(),
 	}
 
-	fkey, err := mw.AddEntry(io.Reader(combinedReader), entry)
+	fkey, err := mw.AddEntry(ctx, io.Reader(combinedReader), entry)
 	if err != nil {
 		apiAppendFileFail.Inc(1)
 		return nil, "", err
@@ -460,24 +622,24 @@ func (self *Api) AppendFile(mhash, path, fname string, existingSize int64, conte
 	}
 
 	return fkey, newMkey.String(), nil
-
 }
 
-func (self *Api) BuildDirectoryTree(mhash string, nameresolver bool) (key storage.Key, manifestEntryMap map[string]*manifestTrieEntry, err error) {
+// BuildDirectoryTree used by swarmfs_unix
+func (a *API) BuildDirectoryTree(ctx context.Context, mhash string, nameresolver bool) (addr storage.Address, manifestEntryMap map[string]*manifestTrieEntry, err error) {
 
 	uri, err := Parse("bzz:/" + mhash)
 	if err != nil {
 		return nil, nil, err
 	}
-	key, err = self.Resolve(uri)
+	addr, err = a.Resolve(ctx, uri)
 	if err != nil {
 		return nil, nil, err
 	}
 
 	quitC := make(chan bool)
-	rootTrie, err := loadManifest(self.dpa, key, quitC)
+	rootTrie, err := loadManifest(ctx, a.fileStore, addr, quitC)
 	if err != nil {
-		return nil, nil, fmt.Errorf("can't load manifest %v: %v", key.String(), err)
+		return nil, nil, fmt.Errorf("can't load manifest %v: %v", addr.String(), err)
 	}
 
 	manifestEntryMap = map[string]*manifestTrieEntry{}
@@ -486,7 +648,94 @@ func (self *Api) BuildDirectoryTree(mhash string, nameresolver bool) (key storag
 	})
 
 	if err != nil {
-		return nil, nil, fmt.Errorf("list with prefix failed %v: %v", key.String(), err)
+		return nil, nil, fmt.Errorf("list with prefix failed %v: %v", addr.String(), err)
 	}
-	return key, manifestEntryMap, nil
+	return addr, manifestEntryMap, nil
+}
+
+// ResourceLookup Looks up mutable resource updates at specific periods and versions
+func (a *API) ResourceLookup(ctx context.Context, addr storage.Address, period uint32, version uint32, maxLookup *mru.LookupParams) (string, []byte, error) {
+	var err error
+	rsrc, err := a.resource.Load(addr)
+	if err != nil {
+		return "", nil, err
+	}
+	if version != 0 {
+		if period == 0 {
+			return "", nil, mru.NewError(mru.ErrInvalidValue, "Period can't be 0")
+		}
+		_, err = a.resource.LookupVersion(ctx, rsrc.NameHash(), period, version, true, maxLookup)
+	} else if period != 0 {
+		_, err = a.resource.LookupHistorical(ctx, rsrc.NameHash(), period, true, maxLookup)
+	} else {
+		_, err = a.resource.LookupLatest(ctx, rsrc.NameHash(), true, maxLookup)
+	}
+	if err != nil {
+		return "", nil, err
+	}
+	var data []byte
+	_, data, err = a.resource.GetContent(rsrc.NameHash().Hex())
+	if err != nil {
+		return "", nil, err
+	}
+	return rsrc.Name(), data, nil
+}
+
+// ResourceCreate creates Resource and returns its key
+func (a *API) ResourceCreate(ctx context.Context, name string, frequency uint64) (storage.Address, error) {
+	key, _, err := a.resource.New(ctx, name, frequency)
+	if err != nil {
+		return nil, err
+	}
+	return key, nil
+}
+
+// ResourceUpdateMultihash updates a Mutable Resource and marks the update's content to be of multihash type, which will be recognized upon retrieval.
+// It will fail if the data is not a valid multihash.
+func (a *API) ResourceUpdateMultihash(ctx context.Context, name string, data []byte) (storage.Address, uint32, uint32, error) {
+	return a.resourceUpdate(ctx, name, data, true)
+}
+
+// ResourceUpdate updates a Mutable Resource with arbitrary data.
+// Upon retrieval the update will be retrieved verbatim as bytes.
+func (a *API) ResourceUpdate(ctx context.Context, name string, data []byte) (storage.Address, uint32, uint32, error) {
+	return a.resourceUpdate(ctx, name, data, false)
+}
+
+func (a *API) resourceUpdate(ctx context.Context, name string, data []byte, multihash bool) (storage.Address, uint32, uint32, error) {
+	var addr storage.Address
+	var err error
+	if multihash {
+		addr, err = a.resource.UpdateMultihash(ctx, name, data)
+	} else {
+		addr, err = a.resource.Update(ctx, name, data)
+	}
+	period, _ := a.resource.GetLastPeriod(name)
+	version, _ := a.resource.GetVersion(name)
+	return addr, period, version, err
+}
+
+// ResourceHashSize returned the size of the digest produced by the Mutable Resource hashing function
+func (a *API) ResourceHashSize() int {
+	return a.resource.HashSize
+}
+
+// ResourceIsValidated checks if the Mutable Resource has an active content validator.
+func (a *API) ResourceIsValidated() bool {
+	return a.resource.IsValidated()
+}
+
+// ResolveResourceManifest retrieves the Mutable Resource manifest for the given address, and returns the address of the metadata chunk.
+func (a *API) ResolveResourceManifest(ctx context.Context, addr storage.Address) (storage.Address, error) {
+	trie, err := loadManifest(ctx, a.fileStore, addr, nil)
+	if err != nil {
+		return nil, fmt.Errorf("cannot load resource manifest: %v", err)
+	}
+
+	entry, _ := trie.getEntry("")
+	if entry.ContentType != ResourceContentType {
+		return nil, fmt.Errorf("not a resource manifest: %s", addr)
+	}
+
+	return storage.Address(common.FromHex(entry.Hash)), nil
 }

swarm/api/api_test.go

@@ -17,33 +17,34 @@
 package api
 
 import (
+	"context"
 	"errors"
 	"fmt"
 	"io"
 	"io/ioutil"
+	"math/big"
 	"os"
 	"testing"
 
 	"github.com/ethereum/go-ethereum/common"
-	"github.com/ethereum/go-ethereum/log"
+	"github.com/ethereum/go-ethereum/core/types"
+	"github.com/ethereum/go-ethereum/swarm/log"
 	"github.com/ethereum/go-ethereum/swarm/storage"
 )
 
-func testApi(t *testing.T, f func(*Api)) {
+func testAPI(t *testing.T, f func(*API, bool)) {
 	datadir, err := ioutil.TempDir("", "bzz-test")
 	if err != nil {
 		t.Fatalf("unable to create temp dir: %v", err)
 	}
-	os.RemoveAll(datadir)
 	defer os.RemoveAll(datadir)
-	dpa, err := storage.NewLocalDPA(datadir)
+	fileStore, err := storage.NewLocalFileStore(datadir, make([]byte, 32))
 	if err != nil {
 		return
 	}
-	api := NewApi(dpa, nil)
+	api := NewAPI(fileStore, nil, nil)
-	dpa.Start()
+	f(api, false)
-	f(api)
+	f(api, true)
-	dpa.Stop()
 }
 
 type testResponse struct {
@@ -82,10 +83,9 @@ func expResponse(content string, mimeType string, status int) *Response {
 	return &Response{mimeType, status, int64(len(content)), content}
 }
 
-// func testGet(t *testing.T, api *Api, bzzhash string) *testResponse {
+func testGet(t *testing.T, api *API, bzzhash, path string) *testResponse {
-func testGet(t *testing.T, api *Api, bzzhash, path string) *testResponse {
+	addr := storage.Address(common.Hex2Bytes(bzzhash))
-	key := storage.Key(common.Hex2Bytes(bzzhash))
+	reader, mimeType, status, _, err := api.Get(context.TODO(), addr, path)
-	reader, mimeType, status, err := api.Get(key, path)
 	if err != nil {
 		t.Fatalf("unexpected error: %v", err)
 	}
@@ -106,27 +106,31 @@ func testGet(t *testing.T, api *Api, bzzhash, path string) *testResponse {
 }
 
 func TestApiPut(t *testing.T) {
-	testApi(t, func(api *Api) {
+	testAPI(t, func(api *API, toEncrypt bool) {
 		content := "hello"
 		exp := expResponse(content, "text/plain", 0)
-		// exp := expResponse([]byte(content), "text/plain", 0)
+		ctx := context.TODO()
-		key, err := api.Put(content, exp.MimeType)
+		addr, wait, err := api.Put(ctx, content, exp.MimeType, toEncrypt)
 		if err != nil {
 			t.Fatalf("unexpected error: %v", err)
 		}
-		resp := testGet(t, api, key.String(), "")
+		err = wait(ctx)
+		if err != nil {
+			t.Fatalf("unexpected error: %v", err)
+		}
+		resp := testGet(t, api, addr.Hex(), "")
 		checkResponse(t, resp, exp)
 	})
 }
 
 // testResolver implements the Resolver interface and either returns the given
 // hash if it is set, or returns a "name not found" error
-type testResolver struct {
+type testResolveValidator struct {
 	hash *common.Hash
 }
 
-func newTestResolver(addr string) *testResolver {
+func newTestResolveValidator(addr string) *testResolveValidator {
-	r := &testResolver{}
+	r := &testResolveValidator{}
 	if addr != "" {
 		hash := common.HexToHash(addr)
 		r.hash = &hash
@@ -134,21 +138,28 @@ func newTestResolver(addr string) *testResolver {
 	return r
 }
 
-func (t *testResolver) Resolve(addr string) (common.Hash, error) {
+func (t *testResolveValidator) Resolve(addr string) (common.Hash, error) {
 	if t.hash == nil {
 		return common.Hash{}, fmt.Errorf("DNS name not found: %q", addr)
 	}
 	return *t.hash, nil
 }
 
+func (t *testResolveValidator) Owner(node [32]byte) (addr common.Address, err error) {
+	return
+}
+func (t *testResolveValidator) HeaderByNumber(context.Context, *big.Int) (header *types.Header, err error) {
+	return
+}
+
 // TestAPIResolve tests resolving URIs which can either contain content hashes
 // or ENS names
 func TestAPIResolve(t *testing.T) {
 	ensAddr := "swarm.eth"
 	hashAddr := "1111111111111111111111111111111111111111111111111111111111111111"
 	resolvedAddr := "2222222222222222222222222222222222222222222222222222222222222222"
-	doesResolve := newTestResolver(resolvedAddr)
+	doesResolve := newTestResolveValidator(resolvedAddr)
-	doesntResolve := newTestResolver("")
+	doesntResolve := newTestResolveValidator("")
 
 	type test struct {
 		desc      string
@@ -213,12 +224,12 @@ func TestAPIResolve(t *testing.T) {
 	}
 	for _, x := range tests {
 		t.Run(x.desc, func(t *testing.T) {
-			api := &Api{dns: x.dns}
+			api := &API{dns: x.dns}
 			uri := &URI{Addr: x.addr, Scheme: "bzz"}
 			if x.immutable {
 				uri.Scheme = "bzz-immutable"
 			}
-			res, err := api.Resolve(uri)
+			res, err := api.Resolve(context.TODO(), uri)
 			if err == nil {
 				if x.expectErr != nil {
 					t.Fatalf("expected error %q, got result %q", x.expectErr, res)
@@ -239,15 +250,15 @@ func TestAPIResolve(t *testing.T) {
 }
 
 func TestMultiResolver(t *testing.T) {
-	doesntResolve := newTestResolver("")
+	doesntResolve := newTestResolveValidator("")
 
 	ethAddr := "swarm.eth"
 	ethHash := "0x2222222222222222222222222222222222222222222222222222222222222222"
-	ethResolve := newTestResolver(ethHash)
+	ethResolve := newTestResolveValidator(ethHash)
 
 	testAddr := "swarm.test"
 	testHash := "0x1111111111111111111111111111111111111111111111111111111111111111"
-	testResolve := newTestResolver(testHash)
+	testResolve := newTestResolveValidator(testHash)
 
 	tests := []struct {
 		desc   string

swarm/api/client/client.go

@@ -30,6 +30,7 @@ import (
 	"net/textproto"
 	"os"
 	"path/filepath"
+	"regexp"
 	"strconv"
 	"strings"
 
@@ -52,12 +53,17 @@ type Client struct {
 	Gateway string
 }
 
-// UploadRaw uploads raw data to swarm and returns the resulting hash
+// UploadRaw uploads raw data to swarm and returns the resulting hash. If toEncrypt is true it
-func (c *Client) UploadRaw(r io.Reader, size int64) (string, error) {
+// uploads encrypted data
+func (c *Client) UploadRaw(r io.Reader, size int64, toEncrypt bool) (string, error) {
 	if size <= 0 {
 		return "", errors.New("data size must be greater than zero")
 	}
-	req, err := http.NewRequest("POST", c.Gateway+"/bzz-raw:/", r)
+	addr := ""
+	if toEncrypt {
+		addr = "encrypt"
+	}
+	req, err := http.NewRequest("POST", c.Gateway+"/bzz-raw:/"+addr, r)
 	if err != nil {
 		return "", err
 	}
@@ -77,18 +83,20 @@ func (c *Client) UploadRaw(r io.Reader, size int64) (string, error) {
 	return string(data), nil
 }
 
-// DownloadRaw downloads raw data from swarm
+// DownloadRaw downloads raw data from swarm and it returns a ReadCloser and a bool whether the
-func (c *Client) DownloadRaw(hash string) (io.ReadCloser, error) {
+// content was encrypted
+func (c *Client) DownloadRaw(hash string) (io.ReadCloser, bool, error) {
 	uri := c.Gateway + "/bzz-raw:/" + hash
 	res, err := http.DefaultClient.Get(uri)
 	if err != nil {
-		return nil, err
+		return nil, false, err
 	}
 	if res.StatusCode != http.StatusOK {
 		res.Body.Close()
-		return nil, fmt.Errorf("unexpected HTTP status: %s", res.Status)
+		return nil, false, fmt.Errorf("unexpected HTTP status: %s", res.Status)
 	}
-	return res.Body, nil
+	isEncrypted := (res.Header.Get("X-Decrypted") == "true")
+	return res.Body, isEncrypted, nil
 }
 
 // File represents a file in a swarm manifest and is used for uploading and
@@ -125,11 +133,11 @@ func Open(path string) (*File, error) {
 // (if the manifest argument is non-empty) or creates a new manifest containing
 // the file, returning the resulting manifest hash (the file will then be
 // available at bzz:/<hash>/<path>)
-func (c *Client) Upload(file *File, manifest string) (string, error) {
+func (c *Client) Upload(file *File, manifest string, toEncrypt bool) (string, error) {
 	if file.Size <= 0 {
 		return "", errors.New("file size must be greater than zero")
 	}
-	return c.TarUpload(manifest, &FileUploader{file})
+	return c.TarUpload(manifest, &FileUploader{file}, toEncrypt)
 }
 
 // Download downloads a file with the given path from the swarm manifest with
@@ -159,14 +167,14 @@ func (c *Client) Download(hash, path string) (*File, error) {
 // directory will then be available at bzz:/<hash>/path/to/file), with
 // the file specified in defaultPath being uploaded to the root of the manifest
 // (i.e. bzz:/<hash>/)
-func (c *Client) UploadDirectory(dir, defaultPath, manifest string) (string, error) {
+func (c *Client) UploadDirectory(dir, defaultPath, manifest string, toEncrypt bool) (string, error) {
 	stat, err := os.Stat(dir)
 	if err != nil {
 		return "", err
 	} else if !stat.IsDir() {
 		return "", fmt.Errorf("not a directory: %s", dir)
 	}
-	return c.TarUpload(manifest, &DirectoryUploader{dir, defaultPath})
+	return c.TarUpload(manifest, &DirectoryUploader{dir, defaultPath}, toEncrypt)
 }
 
 // DownloadDirectory downloads the files contained in a swarm manifest under
@@ -228,27 +236,109 @@ func (c *Client) DownloadDirectory(hash, path, destDir string) error {
 	}
 }
 
+// DownloadFile downloads a single file into the destination directory
+// if the manifest entry does not specify a file name - it will fallback
+// to the hash of the file as a filename
+func (c *Client) DownloadFile(hash, path, dest string) error {
+	hasDestinationFilename := false
+	if stat, err := os.Stat(dest); err == nil {
+		hasDestinationFilename = !stat.IsDir()
+	} else {
+		if os.IsNotExist(err) {
+			// does not exist - should be created
+			hasDestinationFilename = true
+		} else {
+			return fmt.Errorf("could not stat path: %v", err)
+		}
+	}
+
+	manifestList, err := c.List(hash, path)
+	if err != nil {
+		return fmt.Errorf("could not list manifest: %v", err)
+	}
+
+	switch len(manifestList.Entries) {
+	case 0:
+		return fmt.Errorf("could not find path requested at manifest address. make sure the path you've specified is correct")
+	case 1:
+		//continue
+	default:
+		return fmt.Errorf("got too many matches for this path")
+	}
+
+	uri := c.Gateway + "/bzz:/" + hash + "/" + path
+	req, err := http.NewRequest("GET", uri, nil)
+	if err != nil {
+		return err
+	}
+	res, err := http.DefaultClient.Do(req)
+	if err != nil {
+		return err
+	}
+	defer res.Body.Close()
+
+	if res.StatusCode != http.StatusOK {
+		return fmt.Errorf("unexpected HTTP status: expected 200 OK, got %d", res.StatusCode)
+	}
+	filename := ""
+	if hasDestinationFilename {
+		filename = dest
+	} else {
+		// try to assert
+		re := regexp.MustCompile("[^/]+$") //everything after last slash
+
+		if results := re.FindAllString(path, -1); len(results) > 0 {
+			filename = results[len(results)-1]
+		} else {
+			if entry := manifestList.Entries[0]; entry.Path != "" && entry.Path != "/" {
+				filename = entry.Path
+			} else {
+				// assume hash as name if there's nothing from the command line
+				filename = hash
+			}
+		}
+		filename = filepath.Join(dest, filename)
+	}
+	filePath, err := filepath.Abs(filename)
+	if err != nil {
+		return err
+	}
+
+	if err := os.MkdirAll(filepath.Dir(filePath), 0777); err != nil {
+		return err
+	}
+
+	dst, err := os.Create(filename)
+	if err != nil {
+		return err
+	}
+	defer dst.Close()
+
+	_, err = io.Copy(dst, res.Body)
+	return err
+}
+
 // UploadManifest uploads the given manifest to swarm
-func (c *Client) UploadManifest(m *api.Manifest) (string, error) {
+func (c *Client) UploadManifest(m *api.Manifest, toEncrypt bool) (string, error) {
 	data, err := json.Marshal(m)
 	if err != nil {
 		return "", err
 	}
-	return c.UploadRaw(bytes.NewReader(data), int64(len(data)))
+	return c.UploadRaw(bytes.NewReader(data), int64(len(data)), toEncrypt)
 }
 
 // DownloadManifest downloads a swarm manifest
-func (c *Client) DownloadManifest(hash string) (*api.Manifest, error) {
+func (c *Client) DownloadManifest(hash string) (*api.Manifest, bool, error) {
-	res, err := c.DownloadRaw(hash)
+	res, isEncrypted, err := c.DownloadRaw(hash)
 	if err != nil {
-		return nil, err
+		return nil, isEncrypted, err
 	}
 	defer res.Close()
 	var manifest api.Manifest
 	if err := json.NewDecoder(res).Decode(&manifest); err != nil {
-		return nil, err
+		return nil, isEncrypted, err
 	}
-	return &manifest, nil
+	return &manifest, isEncrypted, nil
 }
 
 // List list files in a swarm manifest which have the given prefix, grouping
@@ -350,10 +440,19 @@ type UploadFn func(file *File) error
 
 // TarUpload uses the given Uploader to upload files to swarm as a tar stream,
 // returning the resulting manifest hash
-func (c *Client) TarUpload(hash string, uploader Uploader) (string, error) {
+func (c *Client) TarUpload(hash string, uploader Uploader, toEncrypt bool) (string, error) {
 	reqR, reqW := io.Pipe()
 	defer reqR.Close()
-	req, err := http.NewRequest("POST", c.Gateway+"/bzz:/"+hash, reqR)
+	addr := hash
+
+	// If there is a hash already (a manifest), then that manifest will determine if the upload has
+	// to be encrypted or not. If there is no manifest then the toEncrypt parameter decides if
+	// there is encryption or not.
+	if hash == "" && toEncrypt {
+		// This is the built-in address for the encrypted upload endpoint
+		addr = "encrypt"
+	}
+	req, err := http.NewRequest("POST", c.Gateway+"/bzz:/"+addr, reqR)
 	if err != nil {
 		return "", err
 	}

swarm/api/client/client_test.go

@@ -26,28 +26,43 @@ import (
 	"testing"
 
 	"github.com/ethereum/go-ethereum/swarm/api"
+	swarmhttp "github.com/ethereum/go-ethereum/swarm/api/http"
 	"github.com/ethereum/go-ethereum/swarm/testutil"
 )
 
+func serverFunc(api *api.API) testutil.TestServer {
+	return swarmhttp.NewServer(api)
+}
+
 // TestClientUploadDownloadRaw test uploading and downloading raw data to swarm
 func TestClientUploadDownloadRaw(t *testing.T) {
-	srv := testutil.NewTestSwarmServer(t)
+	testClientUploadDownloadRaw(false, t)
+}
+func TestClientUploadDownloadRawEncrypted(t *testing.T) {
+	testClientUploadDownloadRaw(true, t)
+}
+
+func testClientUploadDownloadRaw(toEncrypt bool, t *testing.T) {
+	srv := testutil.NewTestSwarmServer(t, serverFunc)
 	defer srv.Close()
 
 	client := NewClient(srv.URL)
 
 	// upload some raw data
 	data := []byte("foo123")
-	hash, err := client.UploadRaw(bytes.NewReader(data), int64(len(data)))
+	hash, err := client.UploadRaw(bytes.NewReader(data), int64(len(data)), toEncrypt)
 	if err != nil {
 		t.Fatal(err)
 	}
 
 	// check we can download the same data
-	res, err := client.DownloadRaw(hash)
+	res, isEncrypted, err := client.DownloadRaw(hash)
 	if err != nil {
 		t.Fatal(err)
 	}
+	if isEncrypted != toEncrypt {
+		t.Fatalf("Expected encyption status %v got %v", toEncrypt, isEncrypted)
+	}
 	defer res.Close()
 	gotData, err := ioutil.ReadAll(res)
 	if err != nil {
@@ -61,7 +76,15 @@ func TestClientUploadDownloadRaw(t *testing.T) {
 // TestClientUploadDownloadFiles test uploading and downloading files to swarm
 // manifests
 func TestClientUploadDownloadFiles(t *testing.T) {
-	srv := testutil.NewTestSwarmServer(t)
+	testClientUploadDownloadFiles(false, t)
+}
+
+func TestClientUploadDownloadFilesEncrypted(t *testing.T) {
+	testClientUploadDownloadFiles(true, t)
+}
+
+func testClientUploadDownloadFiles(toEncrypt bool, t *testing.T) {
+	srv := testutil.NewTestSwarmServer(t, serverFunc)
 	defer srv.Close()
 
 	client := NewClient(srv.URL)
@@ -74,7 +97,7 @@ func TestClientUploadDownloadFiles(t *testing.T) {
 				Size:        int64(len(data)),
 			},
 		}
-		hash, err := client.Upload(file, manifest)
+		hash, err := client.Upload(file, manifest, toEncrypt)
 		if err != nil {
 			t.Fatal(err)
 		}
@@ -159,7 +182,7 @@ func newTestDirectory(t *testing.T) string {
 // TestClientUploadDownloadDirectory tests uploading and downloading a
 // directory of files to a swarm manifest
 func TestClientUploadDownloadDirectory(t *testing.T) {
-	srv := testutil.NewTestSwarmServer(t)
+	srv := testutil.NewTestSwarmServer(t, serverFunc)
 	defer srv.Close()
 
 	dir := newTestDirectory(t)
@@ -168,7 +191,7 @@ func TestClientUploadDownloadDirectory(t *testing.T) {
 	// upload the directory
 	client := NewClient(srv.URL)
 	defaultPath := filepath.Join(dir, testDirFiles[0])
-	hash, err := client.UploadDirectory(dir, defaultPath, "")
+	hash, err := client.UploadDirectory(dir, defaultPath, "", false)
 	if err != nil {
 		t.Fatalf("error uploading directory: %s", err)
 	}
@@ -217,14 +240,22 @@ func TestClientUploadDownloadDirectory(t *testing.T) {
 
 // TestClientFileList tests listing files in a swarm manifest
 func TestClientFileList(t *testing.T) {
-	srv := testutil.NewTestSwarmServer(t)
+	testClientFileList(false, t)
+}
+
+func TestClientFileListEncrypted(t *testing.T) {
+	testClientFileList(true, t)
+}
+
+func testClientFileList(toEncrypt bool, t *testing.T) {
+	srv := testutil.NewTestSwarmServer(t, serverFunc)
 	defer srv.Close()
 
 	dir := newTestDirectory(t)
 	defer os.RemoveAll(dir)
 
 	client := NewClient(srv.URL)
-	hash, err := client.UploadDirectory(dir, "", "")
+	hash, err := client.UploadDirectory(dir, "", "", toEncrypt)
 	if err != nil {
 		t.Fatalf("error uploading directory: %s", err)
 	}
@@ -275,7 +306,7 @@ func TestClientFileList(t *testing.T) {
 // TestClientMultipartUpload tests uploading files to swarm using a multipart
 // upload
 func TestClientMultipartUpload(t *testing.T) {
-	srv := testutil.NewTestSwarmServer(t)
+	srv := testutil.NewTestSwarmServer(t, serverFunc)
 	defer srv.Close()
 
 	// define an uploader which uploads testDirFiles with some data

swarm/api/config.go

@@ -21,13 +21,16 @@ import (
 	"fmt"
 	"os"
 	"path/filepath"
+	"time"
 
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/contracts/ens"
 	"github.com/ethereum/go-ethereum/crypto"
-	"github.com/ethereum/go-ethereum/log"
 	"github.com/ethereum/go-ethereum/node"
+	"github.com/ethereum/go-ethereum/p2p/discover"
+	"github.com/ethereum/go-ethereum/swarm/log"
 	"github.com/ethereum/go-ethereum/swarm/network"
+	"github.com/ethereum/go-ethereum/swarm/pss"
 	"github.com/ethereum/go-ethereum/swarm/services/swap"
 	"github.com/ethereum/go-ethereum/swarm/storage"
 )
@@ -41,11 +44,12 @@ const (
 // allow several bzz nodes running in parallel
 type Config struct {
 	// serialised/persisted fields
-	*storage.StoreParams
+	*storage.FileStoreParams
-	*storage.ChunkerParams
+	*storage.LocalStoreParams
 	*network.HiveParams
-	Swap *swap.SwapParams
+	Swap *swap.LocalProfile
-	*network.SyncParams
+	Pss  *pss.PssParams
+	//*network.SyncParams
 	Contract          common.Address
 	EnsRoot           common.Address
 	EnsAPIs           []string
@@ -54,33 +58,40 @@ type Config struct {
 	Port              string
 	PublicKey         string
 	BzzKey            string
-	NetworkId   uint64
+	NodeID            string
+	NetworkID         uint64
 	SwapEnabled       bool
 	SyncEnabled       bool
-	SwapApi     string
+	DeliverySkipCheck bool
+	SyncUpdateDelay   time.Duration
+	SwapAPI           string
 	Cors              string
 	BzzAccount        string
 	BootNodes         string
+	privateKey        *ecdsa.PrivateKey
 }
 
 //create a default config with all parameters to set to defaults
-func NewDefaultConfig() (self *Config) {
+func NewConfig() (c *Config) {
 
-	self = &Config{
+	c = &Config{
-		StoreParams:   storage.NewDefaultStoreParams(),
+		LocalStoreParams: storage.NewDefaultLocalStoreParams(),
-		ChunkerParams: storage.NewChunkerParams(),
+		FileStoreParams:  storage.NewFileStoreParams(),
-		HiveParams:    network.NewDefaultHiveParams(),
+		HiveParams:       network.NewHiveParams(),
-		SyncParams:    network.NewDefaultSyncParams(),
+		//SyncParams:    network.NewDefaultSyncParams(),
 		Swap:              swap.NewDefaultSwapParams(),
+		Pss:               pss.NewPssParams(),
 		ListenAddr:        DefaultHTTPListenAddr,
 		Port:              DefaultHTTPPort,
 		Path:              node.DefaultDataDir(),
 		EnsAPIs:           nil,
 		EnsRoot:           ens.TestNetAddress,
-		NetworkId:     network.NetworkId,
+		NetworkID:         network.DefaultNetworkID,
 		SwapEnabled:       false,
 		SyncEnabled:       true,
-		SwapApi:       "",
+		DeliverySkipCheck: false,
+		SyncUpdateDelay:   15 * time.Second,
+		SwapAPI:           "",
 		BootNodes:         "",
 	}
 
@@ -89,11 +100,11 @@ func NewDefaultConfig() (self *Config) {
 
 //some config params need to be initialized after the complete
 //config building phase is completed (e.g. due to overriding flags)
-func (self *Config) Init(prvKey *ecdsa.PrivateKey) {
+func (c *Config) Init(prvKey *ecdsa.PrivateKey) {
 
 	address := crypto.PubkeyToAddress(prvKey.PublicKey)
-	self.Path = filepath.Join(self.Path, "bzz-"+common.Bytes2Hex(address.Bytes()))
+	c.Path = filepath.Join(c.Path, "bzz-"+common.Bytes2Hex(address.Bytes()))
-	err := os.MkdirAll(self.Path, os.ModePerm)
+	err := os.MkdirAll(c.Path, os.ModePerm)
 	if err != nil {
 		log.Error(fmt.Sprintf("Error creating root swarm data directory: %v", err))
 		return
@@ -103,11 +114,25 @@ func (self *Config) Init(prvKey *ecdsa.PrivateKey) {
 	pubkeyhex := common.ToHex(pubkey)
 	keyhex := crypto.Keccak256Hash(pubkey).Hex()
 
-	self.PublicKey = pubkeyhex
+	c.PublicKey = pubkeyhex
-	self.BzzKey = keyhex
+	c.BzzKey = keyhex
+	c.NodeID = discover.PubkeyID(&prvKey.PublicKey).String()
 
-	self.Swap.Init(self.Contract, prvKey)
+	if c.SwapEnabled {
-	self.SyncParams.Init(self.Path)
+		c.Swap.Init(c.Contract, prvKey)
-	self.HiveParams.Init(self.Path)
+	}
-	self.StoreParams.Init(self.Path)
+
+	c.privateKey = prvKey
+	c.LocalStoreParams.Init(c.Path)
+	c.LocalStoreParams.BaseKey = common.FromHex(keyhex)
+
+	c.Pss = c.Pss.WithPrivateKey(c.privateKey)
+}
+
+func (c *Config) ShiftPrivateKey() (privKey *ecdsa.PrivateKey) {
+	if c.privateKey != nil {
+		privKey = c.privateKey
+		c.privateKey = nil
+	}
+	return privKey
 }

swarm/api/config_test.go

@@ -33,9 +33,10 @@ func TestConfig(t *testing.T) {
 		t.Fatalf("failed to load private key: %v", err)
 	}
 
-	one := NewDefaultConfig()
+	one := NewConfig()
-	two := NewDefaultConfig()
+	two := NewConfig()
 
+	one.LocalStoreParams = two.LocalStoreParams
 	if equal := reflect.DeepEqual(one, two); !equal {
 		t.Fatal("Two default configs are not equal")
 	}
@@ -49,21 +50,10 @@ func TestConfig(t *testing.T) {
 	if one.PublicKey == "" {
 		t.Fatal("Expected PublicKey to be set")
 	}
-
+	if one.Swap.PayProfile.Beneficiary == (common.Address{}) && one.SwapEnabled {
-	//the Init function should append subdirs to the given path
-	if one.Swap.PayProfile.Beneficiary == (common.Address{}) {
 		t.Fatal("Failed to correctly initialize SwapParams")
 	}
-
+	if one.ChunkDbPath == one.Path {
-	if one.SyncParams.RequestDbPath == one.Path {
-		t.Fatal("Failed to correctly initialize SyncParams")
-	}
-
-	if one.HiveParams.KadDbPath == one.Path {
-		t.Fatal("Failed to correctly initialize HiveParams")
-	}
-
-	if one.StoreParams.ChunkDbPath == one.Path {
 		t.Fatal("Failed to correctly initialize StoreParams")
 	}
 }

swarm/api/filesystem.go

@@ -18,6 +18,7 @@ package api
 
 import (
 	"bufio"
+	"context"
 	"fmt"
 	"io"
 	"net/http"
@@ -27,26 +28,27 @@ import (
 	"sync"
 
 	"github.com/ethereum/go-ethereum/common"
-	"github.com/ethereum/go-ethereum/log"
+	"github.com/ethereum/go-ethereum/swarm/log"
 	"github.com/ethereum/go-ethereum/swarm/storage"
 )
 
 const maxParallelFiles = 5
 
 type FileSystem struct {
-	api *Api
+	api *API
 }
 
-func NewFileSystem(api *Api) *FileSystem {
+func NewFileSystem(api *API) *FileSystem {
 	return &FileSystem{api}
 }
 
 // Upload replicates a local directory as a manifest file and uploads it
-// using dpa store
+// using FileStore store
+// This function waits the chunks to be stored.
 // TODO: localpath should point to a manifest
 //
 // DEPRECATED: Use the HTTP API instead
-func (self *FileSystem) Upload(lpath, index string) (string, error) {
+func (fs *FileSystem) Upload(lpath, index string, toEncrypt bool) (string, error) {
 	var list []*manifestTrieEntry
 	localpath, err := filepath.Abs(filepath.Clean(lpath))
 	if err != nil {
@@ -111,13 +113,14 @@ func (self *FileSystem) Upload(lpath, index string) (string, error) {
 			f, err := os.Open(entry.Path)
 			if err == nil {
 				stat, _ := f.Stat()
-				var hash storage.Key
+				var hash storage.Address
-				wg := &sync.WaitGroup{}
+				var wait func(context.Context) error
-				hash, err = self.api.dpa.Store(f, stat.Size(), wg, nil)
+				ctx := context.TODO()
+				hash, wait, err = fs.api.fileStore.Store(ctx, f, stat.Size(), toEncrypt)
 				if hash != nil {
-					list[i].Hash = hash.String()
+					list[i].Hash = hash.Hex()
 				}
-				wg.Wait()
+				err = wait(ctx)
 				awg.Done()
 				if err == nil {
 					first512 := make([]byte, 512)
@@ -142,7 +145,7 @@ func (self *FileSystem) Upload(lpath, index string) (string, error) {
 	}
 
 	trie := &manifestTrie{
-		dpa: self.api.dpa,
+		fileStore: fs.api.fileStore,
 	}
 	quitC := make(chan bool)
 	for i, entry := range list {
@@ -163,7 +166,7 @@ func (self *FileSystem) Upload(lpath, index string) (string, error) {
 	err2 := trie.recalcAndStore()
 	var hs string
 	if err2 == nil {
-		hs = trie.hash.String()
+		hs = trie.ref.Hex()
 	}
 	awg.Wait()
 	return hs, err2
@@ -173,7 +176,7 @@ func (self *FileSystem) Upload(lpath, index string) (string, error) {
 // under localpath
 //
 // DEPRECATED: Use the HTTP API instead
-func (self *FileSystem) Download(bzzpath, localpath string) error {
+func (fs *FileSystem) Download(bzzpath, localpath string) error {
 	lpath, err := filepath.Abs(filepath.Clean(localpath))
 	if err != nil {
 		return err
@@ -188,7 +191,7 @@ func (self *FileSystem) Download(bzzpath, localpath string) error {
 	if err != nil {
 		return err
 	}
-	key, err := self.api.Resolve(uri)
+	addr, err := fs.api.Resolve(context.TODO(), uri)
 	if err != nil {
 		return err
 	}
@@ -199,14 +202,14 @@ func (self *FileSystem) Download(bzzpath, localpath string) error {
 	}
 
 	quitC := make(chan bool)
-	trie, err := loadManifest(self.api.dpa, key, quitC)
+	trie, err := loadManifest(context.TODO(), fs.api.fileStore, addr, quitC)
 	if err != nil {
 		log.Warn(fmt.Sprintf("fs.Download: loadManifestTrie error: %v", err))
 		return err
 	}
 
 	type downloadListEntry struct {
-		key  storage.Key
+		addr storage.Address
 		path string
 	}
 
@@ -217,7 +220,7 @@ func (self *FileSystem) Download(bzzpath, localpath string) error {
 	err = trie.listWithPrefix(path, quitC, func(entry *manifestTrieEntry, suffix string) {
 		log.Trace(fmt.Sprintf("fs.Download: %#v", entry))
 
-		key = common.Hex2Bytes(entry.Hash)
+		addr = common.Hex2Bytes(entry.Hash)
 		path := lpath + "/" + suffix
 		dir := filepath.Dir(path)
 		if dir != prevPath {
@@ -225,7 +228,7 @@ func (self *FileSystem) Download(bzzpath, localpath string) error {
 			prevPath = dir
 		}
 		if (mde == nil) && (path != dir+"/") {
-			list = append(list, &downloadListEntry{key: key, path: path})
+			list = append(list, &downloadListEntry{addr: addr, path: path})
 		}
 	})
 	if err != nil {
@@ -244,7 +247,7 @@ func (self *FileSystem) Download(bzzpath, localpath string) error {
 		}
 		go func(i int, entry *downloadListEntry) {
 			defer wg.Done()
-			err := retrieveToFile(quitC, self.api.dpa, entry.key, entry.path)
+			err := retrieveToFile(quitC, fs.api.fileStore, entry.addr, entry.path)
 			if err != nil {
 				select {
 				case errC <- err:
@@ -267,12 +270,12 @@ func (self *FileSystem) Download(bzzpath, localpath string) error {
 	}
 }
 
-func retrieveToFile(quitC chan bool, dpa *storage.DPA, key storage.Key, path string) error {
+func retrieveToFile(quitC chan bool, fileStore *storage.FileStore, addr storage.Address, path string) error {
 	f, err := os.Create(path) // TODO: basePath separators
 	if err != nil {
 		return err
 	}
-	reader := dpa.Retrieve(key)
+	reader, _ := fileStore.Retrieve(context.TODO(), addr)
 	writer := bufio.NewWriter(f)
 	size, err := reader.Size(quitC)
 	if err != nil {

swarm/api/filesystem_test.go

@@ -18,10 +18,10 @@ package api
 
 import (
 	"bytes"
+	"context"
 	"io/ioutil"
 	"os"
 	"path/filepath"
-	"sync"
 	"testing"
 
 	"github.com/ethereum/go-ethereum/common"
@@ -30,9 +30,9 @@ import (
 
 var testDownloadDir, _ = ioutil.TempDir(os.TempDir(), "bzz-test")
 
-func testFileSystem(t *testing.T, f func(*FileSystem)) {
+func testFileSystem(t *testing.T, f func(*FileSystem, bool)) {
-	testApi(t, func(api *Api) {
+	testAPI(t, func(api *API, toEncrypt bool) {
-		f(NewFileSystem(api))
+		f(NewFileSystem(api), toEncrypt)
 	})
 }
 
@@ -47,9 +47,9 @@ func readPath(t *testing.T, parts ...string) string {
 }
 
 func TestApiDirUpload0(t *testing.T) {
-	testFileSystem(t, func(fs *FileSystem) {
+	testFileSystem(t, func(fs *FileSystem, toEncrypt bool) {
 		api := fs.api
-		bzzhash, err := fs.Upload(filepath.Join("testdata", "test0"), "")
+		bzzhash, err := fs.Upload(filepath.Join("testdata", "test0"), "", toEncrypt)
 		if err != nil {
 			t.Fatalf("unexpected error: %v", err)
 		}
@@ -63,8 +63,8 @@ func TestApiDirUpload0(t *testing.T) {
 		exp = expResponse(content, "text/css", 0)
 		checkResponse(t, resp, exp)
 
-		key := storage.Key(common.Hex2Bytes(bzzhash))
+		addr := storage.Address(common.Hex2Bytes(bzzhash))
-		_, _, _, err = api.Get(key, "")
+		_, _, _, _, err = api.Get(context.TODO(), addr, "")
 		if err == nil {
 			t.Fatalf("expected error: %v", err)
 		}
@@ -75,27 +75,28 @@ func TestApiDirUpload0(t *testing.T) {
 		if err != nil {
 			t.Fatalf("unexpected error: %v", err)
 		}
-		newbzzhash, err := fs.Upload(downloadDir, "")
+		newbzzhash, err := fs.Upload(downloadDir, "", toEncrypt)
 		if err != nil {
 			t.Fatalf("unexpected error: %v", err)
 		}
-		if bzzhash != newbzzhash {
+		// TODO: currently the hash is not deterministic in the encrypted case
+		if !toEncrypt && bzzhash != newbzzhash {
 			t.Fatalf("download %v reuploaded has incorrect hash, expected %v, got %v", downloadDir, bzzhash, newbzzhash)
 		}
 	})
 }
 
 func TestApiDirUploadModify(t *testing.T) {
-	testFileSystem(t, func(fs *FileSystem) {
+	testFileSystem(t, func(fs *FileSystem, toEncrypt bool) {
 		api := fs.api
-		bzzhash, err := fs.Upload(filepath.Join("testdata", "test0"), "")
+		bzzhash, err := fs.Upload(filepath.Join("testdata", "test0"), "", toEncrypt)
 		if err != nil {
 			t.Errorf("unexpected error: %v", err)
 			return
 		}
 
-		key := storage.Key(common.Hex2Bytes(bzzhash))
+		addr := storage.Address(common.Hex2Bytes(bzzhash))
-		key, err = api.Modify(key, "index.html", "", "")
+		addr, err = api.Modify(context.TODO(), addr, "index.html", "", "")
 		if err != nil {
 			t.Errorf("unexpected error: %v", err)
 			return
@@ -105,24 +106,28 @@ func TestApiDirUploadModify(t *testing.T) {
 			t.Errorf("unexpected error: %v", err)
 			return
 		}
-		wg := &sync.WaitGroup{}
+		ctx := context.TODO()
-		hash, err := api.Store(bytes.NewReader(index), int64(len(index)), wg)
+		hash, wait, err := api.Store(ctx, bytes.NewReader(index), int64(len(index)), toEncrypt)
-		wg.Wait()
 		if err != nil {
 			t.Errorf("unexpected error: %v", err)
 			return
 		}
-		key, err = api.Modify(key, "index2.html", hash.Hex(), "text/html; charset=utf-8")
+		err = wait(ctx)
 		if err != nil {
 			t.Errorf("unexpected error: %v", err)
 			return
 		}
-		key, err = api.Modify(key, "img/logo.png", hash.Hex(), "text/html; charset=utf-8")
+		addr, err = api.Modify(context.TODO(), addr, "index2.html", hash.Hex(), "text/html; charset=utf-8")
 		if err != nil {
 			t.Errorf("unexpected error: %v", err)
 			return
 		}
-		bzzhash = key.String()
+		addr, err = api.Modify(context.TODO(), addr, "img/logo.png", hash.Hex(), "text/html; charset=utf-8")
+		if err != nil {
+			t.Errorf("unexpected error: %v", err)
+			return
+		}
+		bzzhash = addr.Hex()
 
 		content := readPath(t, "testdata", "test0", "index.html")
 		resp := testGet(t, api, bzzhash, "index2.html")
@@ -138,7 +143,7 @@ func TestApiDirUploadModify(t *testing.T) {
 		exp = expResponse(content, "text/css", 0)
 		checkResponse(t, resp, exp)
 
-		_, _, _, err = api.Get(key, "")
+		_, _, _, _, err = api.Get(context.TODO(), addr, "")
 		if err == nil {
 			t.Errorf("expected error: %v", err)
 		}
@@ -146,9 +151,9 @@ func TestApiDirUploadModify(t *testing.T) {
 }
 
 func TestApiDirUploadWithRootFile(t *testing.T) {
-	testFileSystem(t, func(fs *FileSystem) {
+	testFileSystem(t, func(fs *FileSystem, toEncrypt bool) {
 		api := fs.api
-		bzzhash, err := fs.Upload(filepath.Join("testdata", "test0"), "index.html")
+		bzzhash, err := fs.Upload(filepath.Join("testdata", "test0"), "index.html", toEncrypt)
 		if err != nil {
 			t.Errorf("unexpected error: %v", err)
 			return
@@ -162,9 +167,9 @@ func TestApiDirUploadWithRootFile(t *testing.T) {
 }
 
 func TestApiFileUpload(t *testing.T) {
-	testFileSystem(t, func(fs *FileSystem) {
+	testFileSystem(t, func(fs *FileSystem, toEncrypt bool) {
 		api := fs.api
-		bzzhash, err := fs.Upload(filepath.Join("testdata", "test0", "index.html"), "")
+		bzzhash, err := fs.Upload(filepath.Join("testdata", "test0", "index.html"), "", toEncrypt)
 		if err != nil {
 			t.Errorf("unexpected error: %v", err)
 			return
@@ -178,9 +183,9 @@ func TestApiFileUpload(t *testing.T) {
 }
 
 func TestApiFileUploadWithRootFile(t *testing.T) {
-	testFileSystem(t, func(fs *FileSystem) {
+	testFileSystem(t, func(fs *FileSystem, toEncrypt bool) {
 		api := fs.api
-		bzzhash, err := fs.Upload(filepath.Join("testdata", "test0", "index.html"), "index.html")
+		bzzhash, err := fs.Upload(filepath.Join("testdata", "test0", "index.html"), "index.html", toEncrypt)
 		if err != nil {
 			t.Errorf("unexpected error: %v", err)
 			return