[FAB-2324] Add reader/writer/admin defaults

https://jira.hyperledger.org/browse/FAB-2324

This CR adds default reader/writer/admin policies to the dynamically
generated gensis block.  There are currently no consumers of these
policies, but will be added later.

Change-Id: I000220feb9ff1bd806a724b77ea9dcf62f5aa294
Signed-off-by: Jason Yellick <jyellick@us.ibm.com>

common/configtx/tool/provisional/provisional.go

@@ -23,8 +23,10 @@ import (
 	"github.com/hyperledger/fabric/common/configtx"
 	genesisconfig "github.com/hyperledger/fabric/common/configtx/tool/localconfig"
 	configtxchannel "github.com/hyperledger/fabric/common/configvalues/channel"
+	configtxapplication "github.com/hyperledger/fabric/common/configvalues/channel/application"
 	configtxorderer "github.com/hyperledger/fabric/common/configvalues/channel/orderer"
 	"github.com/hyperledger/fabric/common/genesis"
+	"github.com/hyperledger/fabric/common/policies"
 	"github.com/hyperledger/fabric/orderer/common/bootstrap"
 	cb "github.com/hyperledger/fabric/protos/common"
 	ab "github.com/hyperledger/fabric/protos/orderer"
@@ -54,6 +56,15 @@ const (
 
 	// AcceptAllPolicyKey is the key of the AcceptAllPolicy.
 	AcceptAllPolicyKey = "AcceptAllPolicy"
+
+	// ReadersPolicyKey is the key used for the read policy
+	ReadersPolicyKey = "Readers"
+
+	// WritersPolicyKey is the key used for the read policy
+	WritersPolicyKey = "Writers"
+
+	// AdminsPolicyKey is the key used for the read policy
+	AdminsPolicyKey = "Admins"
 )
 
 // DefaultChainCreationPolicyNames is the default value of ChainCreatorsKey.
@@ -85,8 +96,22 @@ func New(conf *genesisconfig.TopLevel) Generator {
 			configtxorderer.TemplateEgressPolicyNames([]string{AcceptAllPolicyKey}),
 
 			// Policies
-			cauthdsl.TemplatePolicy(configtx.NewConfigItemPolicyKey, cauthdsl.RejectAllPolicy),
 			cauthdsl.TemplatePolicy(AcceptAllPolicyKey, cauthdsl.AcceptAllPolicy),
+
+			// Initialize the default Reader/Writer/Admins channel policies
+			policies.TemplateImplicitMetaAnyPolicy([]string{}, ReadersPolicyKey),
+			policies.TemplateImplicitMetaAnyPolicy([]string{}, WritersPolicyKey),
+			policies.TemplateImplicitMetaMajorityPolicy([]string{}, AdminsPolicyKey),
+
+			// Initialize the default Reader/Writer/Admins orderer policies
+			policies.TemplateImplicitMetaAnyPolicy([]string{configtxorderer.GroupKey}, ReadersPolicyKey),
+			policies.TemplateImplicitMetaAnyPolicy([]string{configtxorderer.GroupKey}, WritersPolicyKey),
+			policies.TemplateImplicitMetaMajorityPolicy([]string{configtxorderer.GroupKey}, AdminsPolicyKey),
+
+			// Initialize the default Reader/Writer/Admins application policies
+			policies.TemplateImplicitMetaAnyPolicy([]string{configtxapplication.GroupKey}, ReadersPolicyKey),
+			policies.TemplateImplicitMetaAnyPolicy([]string{configtxapplication.GroupKey}, WritersPolicyKey),
+			policies.TemplateImplicitMetaMajorityPolicy([]string{configtxapplication.GroupKey}, AdminsPolicyKey),
 		},
 
 		systemChainGroups: []*cb.ConfigGroup{

common/policies/implicitmeta_util.go

@@ -0,0 +1,59 @@
+/*
+Copyright IBM Corp. 2016 All Rights Reserved.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+                 http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package policies
+
+import (
+	cb "github.com/hyperledger/fabric/protos/common"
+	"github.com/hyperledger/fabric/protos/utils"
+)
+
+// TemplateImplicitMetaPolicy creates a policy at the specified path with the given policyName
+// It utilizes the policyName for the subPolicyName as well, as this is the standard usage pattern
+func TemplateImplicitMetaPolicy(path []string, policyName string, rule cb.ImplicitMetaPolicy_Rule) *cb.ConfigGroup {
+	root := cb.NewConfigGroup()
+	group := root
+	for _, element := range path {
+		group.Groups[element] = cb.NewConfigGroup()
+		group = group.Groups[element]
+	}
+
+	group.Policies[policyName] = &cb.ConfigPolicy{
+		Policy: &cb.Policy{
+			Type: int32(cb.Policy_IMPLICIT_META),
+			Policy: utils.MarshalOrPanic(&cb.ImplicitMetaPolicy{
+				Rule:      rule,
+				SubPolicy: policyName,
+			}),
+		},
+	}
+	return root
+}
+
+// TempateImplicitMetaAnyPolicy returns TemplateImplicitMetaPolicy with cb.ImplicitMetaPolicy_ANY as the rule
+func TemplateImplicitMetaAnyPolicy(path []string, policyName string) *cb.ConfigGroup {
+	return TemplateImplicitMetaPolicy(path, policyName, cb.ImplicitMetaPolicy_ANY)
+}
+
+// TempateImplicitMetaAnyPolicy returns TemplateImplicitMetaPolicy with cb.ImplicitMetaPolicy_ALL as the rule
+func TemplateImplicitMetaAllPolicy(path []string, policyName string) *cb.ConfigGroup {
+	return TemplateImplicitMetaPolicy(path, policyName, cb.ImplicitMetaPolicy_ALL)
+}
+
+// TempateImplicitMetaAnyPolicy returns TemplateImplicitMetaPolicy with cb.ImplicitMetaPolicy_MAJORITY as the rule
+func TemplateImplicitMetaMajorityPolicy(path []string, policyName string) *cb.ConfigGroup {
+	return TemplateImplicitMetaPolicy(path, policyName, cb.ImplicitMetaPolicy_MAJORITY)
+}