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peer.go
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peer.go
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/*
Copyright IBM Corp. All Rights Reserved.
SPDX-License-Identifier: Apache-2.0
*/
package peer
import (
"fmt"
"sync"
"github.com/hyperledger/fabric-protos-go/common"
pb "github.com/hyperledger/fabric-protos-go/peer"
"github.com/hyperledger/fabric/bccsp"
"github.com/hyperledger/fabric/common/channelconfig"
cc "github.com/hyperledger/fabric/common/config"
"github.com/hyperledger/fabric/common/configtx"
"github.com/hyperledger/fabric/common/deliver"
"github.com/hyperledger/fabric/common/flogging"
commonledger "github.com/hyperledger/fabric/common/ledger"
"github.com/hyperledger/fabric/common/policies"
"github.com/hyperledger/fabric/common/semaphore"
"github.com/hyperledger/fabric/core/comm"
"github.com/hyperledger/fabric/core/committer"
"github.com/hyperledger/fabric/core/committer/txvalidator"
"github.com/hyperledger/fabric/core/committer/txvalidator/plugin"
validatorv14 "github.com/hyperledger/fabric/core/committer/txvalidator/v14"
validatorv20 "github.com/hyperledger/fabric/core/committer/txvalidator/v20"
"github.com/hyperledger/fabric/core/committer/txvalidator/v20/plugindispatcher"
vir "github.com/hyperledger/fabric/core/committer/txvalidator/v20/valinforetriever"
"github.com/hyperledger/fabric/core/common/privdata"
validation "github.com/hyperledger/fabric/core/handlers/validation/api/state"
"github.com/hyperledger/fabric/core/ledger"
"github.com/hyperledger/fabric/core/ledger/ledgermgmt"
"github.com/hyperledger/fabric/core/transientstore"
"github.com/hyperledger/fabric/gossip/api"
gossipprivdata "github.com/hyperledger/fabric/gossip/privdata"
gossipservice "github.com/hyperledger/fabric/gossip/service"
"github.com/hyperledger/fabric/internal/pkg/peer/orderers"
"github.com/hyperledger/fabric/msp"
mspmgmt "github.com/hyperledger/fabric/msp/mgmt"
"github.com/hyperledger/fabric/protoutil"
"github.com/pkg/errors"
)
var peerLogger = flogging.MustGetLogger("peer")
type CollectionInfoShim struct {
plugindispatcher.CollectionAndLifecycleResources
ChannelID string
}
func (cis *CollectionInfoShim) CollectionValidationInfo(chaincodeName, collectionName string, validationState validation.State) ([]byte, error, error) {
return cis.CollectionAndLifecycleResources.CollectionValidationInfo(cis.ChannelID, chaincodeName, collectionName, validationState)
}
type gossipSupport struct {
channelconfig.Application
configtx.Validator
channelconfig.Channel
}
func ConfigBlockFromLedger(ledger ledger.PeerLedger) (*common.Block, error) {
peerLogger.Debugf("Getting config block")
// get last block. Last block number is Height-1
blockchainInfo, err := ledger.GetBlockchainInfo()
if err != nil {
return nil, err
}
lastBlock, err := ledger.GetBlockByNumber(blockchainInfo.Height - 1)
if err != nil {
return nil, err
}
// get most recent config block location from last block metadata
configBlockIndex, err := protoutil.GetLastConfigIndexFromBlock(lastBlock)
if err != nil {
return nil, err
}
// get most recent config block
configBlock, err := ledger.GetBlockByNumber(configBlockIndex)
if err != nil {
return nil, err
}
peerLogger.Debugf("Got config block[%d]", configBlockIndex)
return configBlock, nil
}
// updates the trusted roots for the peer based on updates to channels
func (p *Peer) updateTrustedRoots(cm channelconfig.Resources) {
if !p.ServerConfig.SecOpts.UseTLS {
return
}
// this is triggered on per channel basis so first update the roots for the channel
peerLogger.Debugf("Updating trusted root authorities for channel %s", cm.ConfigtxValidator().ChannelID())
p.CredentialSupport.BuildTrustedRootsForChain(cm)
// now iterate over all roots for all app and orderer channels
var trustedRoots [][]byte
for _, roots := range p.CredentialSupport.AppRootCAsByChain() {
trustedRoots = append(trustedRoots, roots...)
}
trustedRoots = append(trustedRoots, p.ServerConfig.SecOpts.ClientRootCAs...)
trustedRoots = append(trustedRoots, p.ServerConfig.SecOpts.ServerRootCAs...)
// now update the client roots for the peerServer
err := p.Server.SetClientRootCAs(trustedRoots)
if err != nil {
msg := "Failed to update trusted roots from latest config block. " +
"This peer may not be able to communicate with members of channel %s (%s)"
peerLogger.Warningf(msg, cm.ConfigtxValidator().ChannelID(), err)
}
}
//
// Deliver service support structs for the peer
//
// DeliverChainManager provides access to a channel for performing deliver
type DeliverChainManager struct {
Peer *Peer
}
func (d DeliverChainManager) GetChain(chainID string) deliver.Chain {
if channel := d.Peer.Channel(chainID); channel != nil {
return channel
}
return nil
}
// fileLedgerBlockStore implements the interface expected by
// common/ledger/blockledger/file to interact with a file ledger for deliver
type fileLedgerBlockStore struct {
ledger.PeerLedger
}
func (flbs fileLedgerBlockStore) AddBlock(*common.Block) error {
return nil
}
func (flbs fileLedgerBlockStore) RetrieveBlocks(startBlockNumber uint64) (commonledger.ResultsIterator, error) {
return flbs.GetBlocksIterator(startBlockNumber)
}
// NewConfigSupport returns
func NewConfigSupport(peer *Peer) cc.Manager {
return &configSupport{
peer: peer,
}
}
type configSupport struct {
peer *Peer
}
// GetChannelConfig returns an instance of a object that represents
// current channel configuration tree of the specified channel. The
// ConfigProto method of the returned object can be used to get the
// proto representing the channel configuration.
func (c *configSupport) GetChannelConfig(cid string) cc.Config {
channel := c.peer.Channel(cid)
if channel == nil {
peerLogger.Errorf("[channel %s] channel not associated with this peer", cid)
return nil
}
return channel.Resources().ConfigtxValidator()
}
// A Peer holds references to subsystems and channels associated with a Fabric peer.
type Peer struct {
Server *comm.GRPCServer
ServerConfig comm.ServerConfig
CredentialSupport *comm.CredentialSupport
StoreProvider transientstore.StoreProvider
GossipService *gossipservice.GossipService
LedgerMgr *ledgermgmt.LedgerMgr
OrdererEndpointOverrides map[string]*orderers.Endpoint
CryptoProvider bccsp.BCCSP
// validationWorkersSemaphore is used to limit the number of concurrent validation
// go routines.
validationWorkersSemaphore semaphore.Semaphore
pluginMapper plugin.Mapper
channelInitializer func(cid string)
// channels is a map of channelID to channel
mutex sync.RWMutex
channels map[string]*Channel
}
func (p *Peer) openStore(cid string) (*transientstore.Store, error) {
store, err := p.StoreProvider.OpenStore(cid)
if err != nil {
return nil, err
}
return store, nil
}
func (p *Peer) CreateChannel(
cid string,
cb *common.Block,
deployedCCInfoProvider ledger.DeployedChaincodeInfoProvider,
legacyLifecycleValidation plugindispatcher.LifecycleResources,
newLifecycleValidation plugindispatcher.CollectionAndLifecycleResources,
) error {
l, err := p.LedgerMgr.CreateLedger(cid, cb)
if err != nil {
return errors.WithMessage(err, "cannot create ledger from genesis block")
}
if err := p.createChannel(cid, l, cb, p.pluginMapper, deployedCCInfoProvider, legacyLifecycleValidation, newLifecycleValidation); err != nil {
return err
}
p.initChannel(cid)
return nil
}
// retrievePersistedChannelConfig retrieves the persisted channel config from statedb
func retrievePersistedChannelConfig(ledger ledger.PeerLedger) (*common.Config, error) {
qe, err := ledger.NewQueryExecutor()
if err != nil {
return nil, err
}
defer qe.Done()
return retrieveChannelConfig(qe)
}
// createChannel creates a new channel object and insert it into the channels slice.
func (p *Peer) createChannel(
cid string,
l ledger.PeerLedger,
cb *common.Block,
pluginMapper plugin.Mapper,
deployedCCInfoProvider ledger.DeployedChaincodeInfoProvider,
legacyLifecycleValidation plugindispatcher.LifecycleResources,
newLifecycleValidation plugindispatcher.CollectionAndLifecycleResources,
) error {
chanConf, err := retrievePersistedChannelConfig(l)
if err != nil {
return err
}
bundle, err := channelconfig.NewBundle(cid, chanConf, p.CryptoProvider)
if err != nil {
return err
}
capabilitiesSupportedOrPanic(bundle)
channelconfig.LogSanityChecks(bundle)
gossipEventer := p.GossipService.NewConfigEventer()
gossipCallbackWrapper := func(bundle *channelconfig.Bundle) {
ac, ok := bundle.ApplicationConfig()
if !ok {
// TODO, handle a missing ApplicationConfig more gracefully
ac = nil
}
gossipEventer.ProcessConfigUpdate(&gossipSupport{
Validator: bundle.ConfigtxValidator(),
Application: ac,
Channel: bundle.ChannelConfig(),
})
p.GossipService.SuspectPeers(func(identity api.PeerIdentityType) bool {
// TODO: this is a place-holder that would somehow make the MSP layer suspect
// that a given certificate is revoked, or its intermediate CA is revoked.
// In the meantime, before we have such an ability, we return true in order
// to suspect ALL identities in order to validate all of them.
return true
})
}
trustedRootsCallbackWrapper := func(bundle *channelconfig.Bundle) {
p.updateTrustedRoots(bundle)
}
mspCallback := func(bundle *channelconfig.Bundle) {
// TODO remove once all references to mspmgmt are gone from peer code
mspmgmt.XXXSetMSPManager(cid, bundle.MSPManager())
}
osLogger := flogging.MustGetLogger("peer.orderers")
namedOSLogger := osLogger.With("channel", cid)
ordererSource := orderers.NewConnectionSource(namedOSLogger, p.OrdererEndpointOverrides)
ordererSourceCallback := func(bundle *channelconfig.Bundle) {
globalAddresses := bundle.ChannelConfig().OrdererAddresses()
orgAddresses := map[string]orderers.OrdererOrg{}
if ordererConfig, ok := bundle.OrdererConfig(); ok {
for orgName, org := range ordererConfig.Organizations() {
certs := [][]byte{}
for _, root := range org.MSP().GetTLSRootCerts() {
certs = append(certs, root)
}
for _, intermediate := range org.MSP().GetTLSIntermediateCerts() {
certs = append(certs, intermediate)
}
orgAddresses[orgName] = orderers.OrdererOrg{
Addresses: org.Endpoints(),
RootCerts: certs,
}
}
}
ordererSource.Update(globalAddresses, orgAddresses)
}
channel := &Channel{
ledger: l,
resources: bundle,
cryptoProvider: p.CryptoProvider,
}
channel.bundleSource = channelconfig.NewBundleSource(
bundle,
ordererSourceCallback,
gossipCallbackWrapper,
trustedRootsCallbackWrapper,
mspCallback,
channel.bundleUpdate,
)
committer := committer.NewLedgerCommitter(l)
validator := &txvalidator.ValidationRouter{
CapabilityProvider: channel,
V14Validator: validatorv14.NewTxValidator(
cid,
p.validationWorkersSemaphore,
channel,
p.pluginMapper,
p.CryptoProvider,
),
V20Validator: validatorv20.NewTxValidator(
cid,
p.validationWorkersSemaphore,
channel,
channel.Ledger(),
&vir.ValidationInfoRetrieveShim{
New: newLifecycleValidation,
Legacy: legacyLifecycleValidation,
},
&CollectionInfoShim{
CollectionAndLifecycleResources: newLifecycleValidation,
ChannelID: bundle.ConfigtxValidator().ChannelID(),
},
p.pluginMapper,
policies.PolicyManagerGetterFunc(p.GetPolicyManager),
p.CryptoProvider,
),
}
// TODO: does someone need to call Close() on the transientStoreFactory at shutdown of the peer?
store, err := p.openStore(bundle.ConfigtxValidator().ChannelID())
if err != nil {
return errors.Wrapf(err, "[channel %s] failed opening transient store", bundle.ConfigtxValidator().ChannelID())
}
channel.store = store
simpleCollectionStore := privdata.NewSimpleCollectionStore(l, deployedCCInfoProvider)
p.GossipService.InitializeChannel(bundle.ConfigtxValidator().ChannelID(), ordererSource, store, gossipservice.Support{
Validator: validator,
Committer: committer,
CollectionStore: simpleCollectionStore,
IdDeserializeFactory: gossipprivdata.IdentityDeserializerFactoryFunc(func(chainID string) msp.IdentityDeserializer {
return mspmgmt.GetManagerForChain(chainID)
}),
CapabilityProvider: channel,
})
p.mutex.Lock()
defer p.mutex.Unlock()
if p.channels == nil {
p.channels = map[string]*Channel{}
}
p.channels[cid] = channel
return nil
}
func (p *Peer) Channel(cid string) *Channel {
p.mutex.RLock()
defer p.mutex.RUnlock()
if c, ok := p.channels[cid]; ok {
return c
}
return nil
}
func (p *Peer) StoreForChannel(cid string) *transientstore.Store {
if c := p.Channel(cid); c != nil {
return c.Store()
}
return nil
}
// GetChannelsInfo returns an array with information about all channels for
// this peer.
func (p *Peer) GetChannelsInfo() []*pb.ChannelInfo {
p.mutex.RLock()
defer p.mutex.RUnlock()
var channelInfos []*pb.ChannelInfo
for key := range p.channels {
ci := &pb.ChannelInfo{ChannelId: key}
channelInfos = append(channelInfos, ci)
}
return channelInfos
}
// GetChannelConfig returns the channel configuration of the channel with channel ID. Note that this
// call returns nil if channel cid has not been created.
func (p *Peer) GetChannelConfig(cid string) channelconfig.Resources {
if c := p.Channel(cid); c != nil {
return c.Resources()
}
return nil
}
// GetStableChannelConfig returns the stable channel configuration of the channel with channel ID.
// Note that this call returns nil if channel cid has not been created.
func (p *Peer) GetStableChannelConfig(cid string) channelconfig.Resources {
if c := p.Channel(cid); c != nil {
return c.Resources()
}
return nil
}
// GetLedger returns the ledger of the channel with channel ID. Note that this
// call returns nil if channel cid has not been created.
func (p *Peer) GetLedger(cid string) ledger.PeerLedger {
if c := p.Channel(cid); c != nil {
return c.Ledger()
}
return nil
}
// GetMSPIDs returns the ID of each application MSP defined on this channel
func (p *Peer) GetMSPIDs(cid string) []string {
if c := p.Channel(cid); c != nil {
return c.GetMSPIDs()
}
return nil
}
// GetPolicyManager returns the policy manager of the channel with channel ID. Note that this
// call returns nil if channel cid has not been created.
func (p *Peer) GetPolicyManager(cid string) policies.Manager {
if c := p.Channel(cid); c != nil {
return c.Resources().PolicyManager()
}
return nil
}
// initChannel takes care to initialize channel after peer joined, for example deploys system CCs
func (p *Peer) initChannel(cid string) {
if p.channelInitializer != nil {
// Initialize chaincode, namely deploy system CC
peerLogger.Debugf("Initializing channel %s", cid)
p.channelInitializer(cid)
}
}
func (p *Peer) GetApplicationConfig(cid string) (channelconfig.Application, bool) {
cc := p.GetChannelConfig(cid)
if cc == nil {
return nil, false
}
return cc.ApplicationConfig()
}
// Initialize sets up any channels that the peer has from the persistence. This
// function should be called at the start up when the ledger and gossip
// ready
func (p *Peer) Initialize(
init func(string),
pm plugin.Mapper,
deployedCCInfoProvider ledger.DeployedChaincodeInfoProvider,
legacyLifecycleValidation plugindispatcher.LifecycleResources,
newLifecycleValidation plugindispatcher.CollectionAndLifecycleResources,
nWorkers int,
) {
// TODO: exported dep fields or constructor
p.validationWorkersSemaphore = semaphore.New(nWorkers)
p.pluginMapper = pm
p.channelInitializer = init
ledgerIds, err := p.LedgerMgr.GetLedgerIDs()
if err != nil {
panic(fmt.Errorf("error in initializing ledgermgmt: %s", err))
}
for _, cid := range ledgerIds {
peerLogger.Infof("Loading chain %s", cid)
ledger, err := p.LedgerMgr.OpenLedger(cid)
if err != nil {
peerLogger.Errorf("Failed to load ledger %s(%+v)", cid, err)
peerLogger.Debugf("Error while loading ledger %s with message %s. We continue to the next ledger rather than abort.", cid, err)
continue
}
cb, err := ConfigBlockFromLedger(ledger)
if err != nil {
peerLogger.Errorf("Failed to find config block on ledger %s(%s)", cid, err)
peerLogger.Debugf("Error while looking for config block on ledger %s with message %s. We continue to the next ledger rather than abort.", cid, err)
continue
}
// Create a chain if we get a valid ledger with config block
err = p.createChannel(cid, ledger, cb, pm, deployedCCInfoProvider, legacyLifecycleValidation, newLifecycleValidation)
if err != nil {
peerLogger.Errorf("Failed to load chain %s(%s)", cid, err)
peerLogger.Debugf("Error reloading chain %s with message %s. We continue to the next chain rather than abort.", cid, err)
continue
}
p.initChannel(cid)
}
}