Update to protobuf v1.25 and grpc 1.35; bump CI to go1.12

From:
github.com/golang/protobuf v1.3.2
google.golang.org/grpc v1.17.0

To:
github.com/golang/protobuf v1.4.3
google.golang.org/grpc v1.35.0
google.golang.org/protobuf v1.25.0

About the two protobuf packages:
https://developers.google.com/protocol-buffers/docs/reference/go/faq
> Version v1.4.0 and higher of github.com/golang/protobuf wrap the new
implementation and permit programs to adopt the new API incrementally. For
example, the well-known types defined in github.com/golang/protobuf/ptypes are
simply aliases of those defined in the newer module. Thus,
google.golang.org/protobuf/types/known/emptypb and
github.com/golang/protobuf/ptypes/empty may be used interchangeably.

Notable Code Changes in zrepl:
- generate protobufs now contain a mutex so we can't copy them by value
  anymore
- grpc.WithDialer is deprecated => use grpc.WithContextDialer instead

Go1.12 is now actually required by some of the dependencies.

.circleci/config.yml

@@ -172,7 +172,7 @@ workflows:
           matrix: &quickcheck-go-matrix
             alias: quickcheck-go-matrix
             parameters:
-              goversion: [*latest-go-release, "1.11"]
+              goversion: [*latest-go-release, "1.12"]
               goos: ["linux", "freebsd"]
               goarch: ["amd64", "arm64"]
             exclude:
@@ -180,8 +180,8 @@ workflows:
               - goversion: *latest-go-release
                 goos: linux
                 goarch: amd64
-              # not supported by Go 1.11
+              # not supported by Go 1.12
-              - goversion: "1.11"
+              - goversion: "1.12"
                 goos: freebsd
                 goarch: arm64
 

Makefile

@@ -286,7 +286,8 @@ cover-full:
 .PHONY: generate formatcheck format
 
 generate: generate-platform-test-list
-	protoc -I=replication/logic/pdu --go_out=plugins=grpc:replication/logic/pdu replication/logic/pdu/pdu.proto
+	protoc -I=replication/logic/pdu --go_out=replication/logic/pdu --go-grpc_out=replication/logic/pdu replication/logic/pdu/pdu.proto
+	protoc -I=rpc/grpcclientidentity/example --go_out=rpc/grpcclientidentity/example/pdu --go-grpc_out=rpc/grpcclientidentity/example/pdu rpc/grpcclientidentity/example/grpcauth.proto
 	$(GO_ENV_VARS) $(GO) generate $(GO_BUILDFLAGS) -x ./...
 
 GOIMPORTS := goimports -srcdir . -local 'github.com/zrepl/zrepl'

build/go.mod

@@ -4,7 +4,6 @@ go 1.12
 
 require (
 	github.com/alvaroloes/enumer v1.1.1
-	github.com/golang/protobuf v1.4.2
 	github.com/golangci/golangci-lint v1.35.2
 	github.com/golangci/misspell v0.3.4 // indirect
 	github.com/golangci/revgrep v0.0.0-20180812185044-276a5c0a1039 // indirect
@@ -12,4 +11,6 @@ require (
 	github.com/spf13/jwalterweatherman v1.1.0 // indirect
 	github.com/wadey/gocovmerge v0.0.0-20160331181800-b5bfa59ec0ad
 	golang.org/x/tools v0.0.0-20210105210202-9ed45478a130
+	google.golang.org/grpc/cmd/protoc-gen-go-grpc v1.1.0 // indirect
+	google.golang.org/protobuf v1.25.0
 )

build/go.sum

@@ -42,6 +42,7 @@ github.com/bgentry/speakeasy v0.1.0/go.mod h1:+zsyZBPWlz7T6j88CTgSN5bM796AkVf0kB
 github.com/bketelsen/crypt v0.0.3-0.20200106085610-5cbc8cc4026c/go.mod h1:MKsuJmJgSg28kpZDP6UIiPt0e0Oz0kqKNGyRaWEPv84=
 github.com/bombsimon/wsl/v3 v3.1.0 h1:E5SRssoBgtVFPcYWUOFJEcgaySgdtTNYzsSKDOY7ss8=
 github.com/bombsimon/wsl/v3 v3.1.0/go.mod h1:st10JtZYLE4D5sC7b8xV4zTKZwAQjCH/Hy2Pm1FNZIc=
+github.com/census-instrumentation/opencensus-proto v0.2.1/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU=
 github.com/cespare/xxhash v1.1.0/go.mod h1:XrSqR1VqqWfGrhpAt58auRo0WTKS1nRRg3ghfAqPWnc=
 github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw=
 github.com/coreos/bbolt v1.3.2/go.mod h1:iRUV2dpdMOn7Bo10OQBFzIJO9kkE559Wcmn+qkEiiKk=
@@ -60,6 +61,8 @@ github.com/denis-tingajkin/go-header v0.4.2 h1:jEeSF4sdv8/3cT/WY8AgDHUoItNSoEZ7q
 github.com/denis-tingajkin/go-header v0.4.2/go.mod h1:eLRHAVXzE5atsKAnNRDB90WHCFFnBUn4RN0nRcs1LJA=
 github.com/dgrijalva/jwt-go v3.2.0+incompatible/go.mod h1:E3ru+11k8xSBh+hMPgOLZmtrrCbhqsmaPHjLKYnJCaQ=
 github.com/dgryski/go-sip13 v0.0.0-20181026042036-e10d5fee7954/go.mod h1:vAd38F8PWV+bWy6jNmig1y/TA+kYO4g3RSRF0IAv0no=
+github.com/envoyproxy/go-control-plane v0.9.1-0.20191026205805-5f8ba28d4473/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4=
+github.com/envoyproxy/protoc-gen-validate v0.1.0/go.mod h1:iSmxcyjqTsJpI2R4NaDN7+kN2VEUnK/pcBlmesArF7c=
 github.com/fatih/color v1.7.0 h1:DkWD4oS2D8LGGgTQ6IvwJJXSL5Vp2ffcQg58nFV38Ys=
 github.com/fatih/color v1.7.0/go.mod h1:Zm6kSWBoL9eyXnKyktHP6abPY2pDugNf5KwzbycvMj4=
 github.com/fatih/color v1.9.0/go.mod h1:eQcE1qtQxscV5RaZvpXrrb8Drkc3/DdQ+uUYCNjL+zU=
@@ -122,6 +125,7 @@ github.com/golang/protobuf v1.4.0-rc.1.0.20200221234624-67d41d38c208/go.mod h1:x
 github.com/golang/protobuf v1.4.0-rc.2/go.mod h1:LlEzMj4AhA7rCAGe4KMBDvJI+AwstrUpVNzEA03Pprs=
 github.com/golang/protobuf v1.4.0-rc.4.0.20200313231945-b860323f09d0/go.mod h1:WU3c8KckQ9AFe+yFwt9sWVRKCVIyN9cPHBJSNnbL67w=
 github.com/golang/protobuf v1.4.0/go.mod h1:jodUvKwWbYaEsadDk5Fwe5c77LiNKVO9IDvqG2KuDX0=
+github.com/golang/protobuf v1.4.1/go.mod h1:U8fpvMrcmy5pZrNK1lt4xCsGvpyWQ/VVv6QDs8UjoX8=
 github.com/golang/protobuf v1.4.2 h1:+Z5KGCizgyZCbGh1KZqA0fcLLkwbsjIzS4aV2v7wJX0=
 github.com/golang/protobuf v1.4.2/go.mod h1:oDoupMAO8OvCJWAcko0GGGIgR6R6ocIYbsSw735rRwI=
 github.com/golangci/check v0.0.0-20180506172741-cfe4005ccda2 h1:23T5iq8rbUYlhpt5DB4XJkc6BU31uODLD1o1gKvZmD0=
@@ -162,6 +166,7 @@ github.com/google/go-cmp v0.3.0 h1:crn/baboCvb5fXaQ0IJ1SGTsTVrWpDsCWC8EGETZijY=
 github.com/google/go-cmp v0.3.0/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU=
 github.com/google/go-cmp v0.3.1/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU=
 github.com/google/go-cmp v0.4.0/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
+github.com/google/go-cmp v0.5.0/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
 github.com/google/go-cmp v0.5.1/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
 github.com/google/go-cmp v0.5.2/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
 github.com/google/go-cmp v0.5.4 h1:L8R9j+yAqZuZjsqh/z+F1NCffTKKLShY6zXTItVIZ8M=
@@ -336,6 +341,7 @@ github.com/prometheus/client_golang v0.9.1/go.mod h1:7SWBe2y4D6OKWSNQJUaRYU/AaXP
 github.com/prometheus/client_golang v0.9.3/go.mod h1:/TN21ttK/J9q6uSwhBd54HahCDft0ttaMvbicHlPoso=
 github.com/prometheus/client_model v0.0.0-20180712105110-5c3871d89910/go.mod h1:MbSGuTsp3dbXC40dX6PRTWyKYBIrTGTE9sqQNg2J8bo=
 github.com/prometheus/client_model v0.0.0-20190129233127-fd36f4220a90/go.mod h1:xMI15A0UPsDsEKsMN9yxemIoYk6Tm2C1GtYGdfGttqA=
+github.com/prometheus/client_model v0.0.0-20190812154241-14fe0d1b01d4/go.mod h1:xMI15A0UPsDsEKsMN9yxemIoYk6Tm2C1GtYGdfGttqA=
 github.com/prometheus/common v0.0.0-20181113130724-41aa239b4cce/go.mod h1:daVV7qP5qjZbuso7PdcryaAu0sAZbrN9i7WWcTMWvro=
 github.com/prometheus/common v0.4.0/go.mod h1:TNfzLD0ON7rHzMJeJkieUDPYmFC7Snx/y86RQel1bk4=
 github.com/prometheus/procfs v0.0.0-20181005140218-185b4288413d/go.mod h1:c3At6R/oaqEKCNdg8wHV1ftS6bRYblBhIjjI8uT2IGk=
@@ -564,6 +570,7 @@ golang.org/x/tools v0.0.0-20190322203728-c1a832b0ad89/go.mod h1:LCzVGOaR6xXOjkQ3
 golang.org/x/tools v0.0.0-20190328211700-ab21143f2384/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
 golang.org/x/tools v0.0.0-20190425150028-36563e24a262/go.mod h1:RgjU9mgBXZiqYHBnxXauZ1Gv1EHHAz9KjViQ78xBX0Q=
 golang.org/x/tools v0.0.0-20190506145303-2d16b83fe98c/go.mod h1:RgjU9mgBXZiqYHBnxXauZ1Gv1EHHAz9KjViQ78xBX0Q=
+golang.org/x/tools v0.0.0-20190524140312-2c0ae7006135/go.mod h1:RgjU9mgBXZiqYHBnxXauZ1Gv1EHHAz9KjViQ78xBX0Q=
 golang.org/x/tools v0.0.0-20190524210228-3d17549cdc6b h1:iEAPfYPbYbxG/2lNN4cMOHkmgKNsCuUwkxlDCK46UlU=
 golang.org/x/tools v0.0.0-20190524210228-3d17549cdc6b/go.mod h1:RgjU9mgBXZiqYHBnxXauZ1Gv1EHHAz9KjViQ78xBX0Q=
 golang.org/x/tools v0.0.0-20190606124116-d0a3d012864b/go.mod h1:/rFqwRUd4F7ZHNgwSSTFct+R/Kf4OFW1sUzUTQQTgfc=
@@ -626,16 +633,27 @@ google.golang.org/genproto v0.0.0-20190801165951-fa694d86fc64/go.mod h1:DMBHOl98
 google.golang.org/genproto v0.0.0-20190819201941-24fa4b261c55/go.mod h1:DMBHOl98Agz4BDEuKkezgsaosCRResVns1a3J2ZsMNc=
 google.golang.org/genproto v0.0.0-20190911173649-1774047e7e51/go.mod h1:IbNlFCBrqXvoKpeg0TB2l7cyZUmoaFKYIwrEpbDKLA8=
 google.golang.org/genproto v0.0.0-20191108220845-16a3f7862a1a/go.mod h1:n3cpQtvxv34hfy77yVDNjmbRyujviMdxYliBSkLhpCc=
+google.golang.org/genproto v0.0.0-20200526211855-cb27e3aa2013/go.mod h1:NbSheEEYHJ7i3ixzK3sjbqSGDJWnxyFXZblF3eUsNvo=
 google.golang.org/grpc v1.19.0/go.mod h1:mqu4LbDTu4XGKhr4mRzUsmM4RtVoemTSY81AxZiDr8c=
 google.golang.org/grpc v1.20.1/go.mod h1:10oTOabMzJvdu6/UiuZezV6QK5dSlG84ov/aaiqXj38=
 google.golang.org/grpc v1.21.1/go.mod h1:oYelfM1adQP15Ek0mdvEgi9Df8B9CZIaU1084ijfRaM=
+google.golang.org/grpc v1.23.0/go.mod h1:Y5yQAOtifL1yxbo5wqy6BxZv8vAUGQwXBOALyacEbxg=
+google.golang.org/grpc v1.27.0 h1:rRYRFMVgRv6E0D70Skyfsr28tDXIuuPZyWGMPdMcnXg=
+google.golang.org/grpc v1.27.0/go.mod h1:qbnxyOmOxrQa7FizSgH+ReBfzJrCY1pSN7KXBS8abTk=
+google.golang.org/grpc v1.35.0 h1:TwIQcH3es+MojMVojxxfQ3l3OF2KzlRxML2xZq0kRo8=
+google.golang.org/grpc/cmd/protoc-gen-go-grpc v1.1.0 h1:M1YKkFIboKNieVO5DLUEVzQfGwJD30Nv2jfUgzb5UcE=
+google.golang.org/grpc/cmd/protoc-gen-go-grpc v1.1.0/go.mod h1:6Kw0yEErY5E/yWrBtf03jp27GLLJujG4z/JK95pnjjw=
 google.golang.org/protobuf v0.0.0-20200109180630-ec00e32a8dfd/go.mod h1:DFci5gLYBciE7Vtevhsrf46CRTquxDuWsQurQQe4oz8=
 google.golang.org/protobuf v0.0.0-20200221191635-4d8936d0db64/go.mod h1:kwYJMbMJ01Woi6D6+Kah6886xMZcty6N08ah7+eCXa0=
 google.golang.org/protobuf v0.0.0-20200228230310-ab0ca4ff8a60/go.mod h1:cfTl7dwQJ+fmap5saPgwCLgHXTUD7jkjRqWcaiX5VyM=
 google.golang.org/protobuf v1.20.1-0.20200309200217-e05f789c0967/go.mod h1:A+miEFZTKqfCUM6K7xSMQL9OKL/b6hQv+e19PK+JZNE=
 google.golang.org/protobuf v1.21.0/go.mod h1:47Nbq4nVaFHyn7ilMalzfO3qCViNmqZ2kzikPIcrTAo=
+google.golang.org/protobuf v1.22.0/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU=
 google.golang.org/protobuf v1.23.0 h1:4MY060fB1DLGMB/7MBTLnwQUY6+F09GEiz6SsrNqyzM=
 google.golang.org/protobuf v1.23.0/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU=
+google.golang.org/protobuf v1.23.1-0.20200526195155-81db48ad09cc/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU=
+google.golang.org/protobuf v1.25.0 h1:Ejskq+SyPohKW+1uil0JJMtmHCgJPJ/qWTxr8qp+R4c=
+google.golang.org/protobuf v1.25.0/go.mod h1:9JNX74DMeImyA3h4bdi1ymwjUzf21/xIlbajtzgsN7c=
 gopkg.in/alecthomas/kingpin.v2 v2.2.6/go.mod h1:FMv+mEhP44yOT+4EoQTLFTRgOQ1FBLkstjWtayDeSgw=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127 h1:qIbj1fsPNlZgppZ+VLlY7N33q108Sa+fhmuc+sWQYwY=
@@ -665,6 +683,7 @@ gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C
 honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.0-20190106161140-3f1c8253044a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.0-20190418001031-e561f6794a2a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
+honnef.co/go/tools v0.0.0-20190523083050-ea95bdfd59fc/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.1-2019.2.3/go.mod h1:a3bituU0lyd329TUQxRnasdCoJDkEUEAqEt0JzvZhAg=
 honnef.co/go/tools v0.0.1-2020.1.6 h1:W18jzjh8mfPez+AwGLxmOImucz/IFjpNlrKVnaj2YVc=
 honnef.co/go/tools v0.0.1-2020.1.6/go.mod h1:pyyisuGw24ruLjrr1ddx39WE0y9OooInRzEYLhQB2YY=

build/tools.go

@@ -2,11 +2,13 @@
 
 package main
 
+// the lines are parsed by lazy.sh, do not edit
 import (
 	_ "github.com/alvaroloes/enumer"
-	_ "github.com/golang/protobuf/protoc-gen-go"
 	_ "github.com/golangci/golangci-lint/cmd/golangci-lint"
 	_ "github.com/wadey/gocovmerge"
 	_ "golang.org/x/tools/cmd/goimports"
 	_ "golang.org/x/tools/cmd/stringer"
+	_ "google.golang.org/grpc/cmd/protoc-gen-go-grpc"
+	_ "google.golang.org/protobuf/cmd/protoc-gen-go"
 )

daemon/job/active.go

@@ -160,7 +160,7 @@ func modePushFromConfig(g *config.Global, in *config.PushJob, jobID endpoint.Job
 
 	m.plannerPolicy = &logic.PlannerPolicy{
 		EncryptedSend:     logic.TriFromBool(in.Send.Encrypted),
-		ReplicationConfig: *replicationConfig,
+		ReplicationConfig: replicationConfig,
 	}
 
 	if m.snapper, err = snapper.FromConfig(g, m.senderConfig.FSF, in.Snapshotting); err != nil {
@@ -255,7 +255,7 @@ func modePullFromConfig(g *config.Global, in *config.PullJob, jobID endpoint.Job
 
 	m.plannerPolicy = &logic.PlannerPolicy{
 		EncryptedSend:     logic.DontCare,
-		ReplicationConfig: *replicationConfig,
+		ReplicationConfig: replicationConfig,
 	}
 
 	m.receiverConfig, err = buildReceiverConfig(in, jobID)

endpoint/endpoint.go

@@ -40,6 +40,8 @@ func (c *SenderConfig) Validate() error {
 
 // Sender implements replication.ReplicationEndpoint for a sending side
 type Sender struct {
+	pdu.UnsafeReplicationServer // prefer compilation errors over default 'method X not implemented' impl
+
 	FSFilter zfs.DatasetFilter
 	encrypt  *zfs.NilBool
 	jobId    JobID
@@ -443,6 +445,8 @@ func (c *ReceiverConfig) Validate() error {
 
 // Receiver implements replication.ReplicationEndpoint for a receiving side
 type Receiver struct {
+	pdu.UnsafeReplicationServer // prefer compilation errors over default 'method X not implemented' impl
+
 	conf ReceiverConfig // validated
 
 	recvParentCreationMtx *chainlock.L

go.mod

@@ -8,9 +8,10 @@ require (
 	github.com/gitchander/permutation v0.0.0-20181107151852-9e56b92e9909
 	github.com/go-logfmt/logfmt v0.4.0
 	github.com/go-sql-driver/mysql v1.4.1-0.20190907122137-b2c03bcae3d4
-	github.com/golang/protobuf v1.3.2
+	github.com/golang/protobuf v1.4.3
-	github.com/google/uuid v1.1.1
+	github.com/google/uuid v1.1.2
 	github.com/jinzhu/copier v0.0.0-20170922082739-db4671f3a9b8
+	github.com/kisielk/gotool v1.0.0 // indirect
 	github.com/kr/pretty v0.1.0
 	github.com/lib/pq v1.2.0
 	github.com/mattn/go-colorable v0.1.4 // indirect
@@ -28,15 +29,18 @@ require (
 	github.com/sergi/go-diff v1.0.1-0.20180205163309-da645544ed44 // go1.12 thinks it needs this
 	github.com/spf13/cobra v0.0.2
 	github.com/spf13/pflag v1.0.5
-	github.com/stretchr/testify v1.4.0
+	github.com/stretchr/testify v1.5.1
 	github.com/willf/bitset v1.1.10
 	github.com/yudai/gojsondiff v0.0.0-20170107030110-7b1b7adf999d
 	github.com/yudai/golcs v0.0.0-20170316035057-ecda9a501e82 // go1.12 thinks it needs this
 	github.com/zrepl/yaml-config v0.0.0-20191220194647-cbb6b0cf4bdd
-	golang.org/x/net v0.0.0-20190613194153-d28f0bde5980
+	golang.org/x/net v0.0.0-20210119194325-5f4716e94777
 	golang.org/x/sync v0.0.0-20190423024810-112230192c58
-	golang.org/x/sys v0.0.0-20191026070338-33540a1f6037
+	golang.org/x/sys v0.0.0-20210124154548-22da62e12c0c
-	golang.org/x/tools v0.0.0-20190206041539-40960b6deb8e
+	golang.org/x/text v0.3.5 // indirect
+	golang.org/x/tools v0.0.0-20190524140312-2c0ae7006135
 	gonum.org/v1/gonum v0.7.0 // indirect
-	google.golang.org/grpc v1.17.0
+	google.golang.org/genproto v0.0.0-20210122163508-8081c04a3579 // indirect
+	google.golang.org/grpc v1.35.0
+	google.golang.org/protobuf v1.25.0
 )

go.sum

@@ -19,15 +19,21 @@ github.com/beorn7/perks v0.0.0-20180321164747-3a771d992973/go.mod h1:Dwedo/Wpr24
 github.com/beorn7/perks v1.0.0/go.mod h1:KWe93zE9D1o94FZ5RNwFwVgaQK1VOXiVxmqh+CedLV8=
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@@ -88,6 +94,17 @@ github.com/golang/protobuf v1.2.0/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5y
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@@ -114,9 +131,14 @@ github.com/golangci/unconvert v0.0.0-20180507085042-28b1c447d1f4/go.mod h1:Izgrg
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@@ -276,6 +298,8 @@ github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXf
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@@ -305,21 +329,28 @@ golang.org/x/crypto v0.0.0-20190313024323-a1f597ede03a/go.mod h1:djNgcEr1/C05ACk
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@@ -342,25 +373,38 @@ golang.org/x/sys v0.0.0-20191010194322-b09406accb47 h1:/XfQ9z7ib8eEJX2hdgFTZJ/nt
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 golang.org/x/tools v0.0.0-20190322203728-c1a832b0ad89/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
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+golang.org/x/tools v0.0.0-20190524140312-2c0ae7006135 h1:5Beo0mZN8dRzgrMMkDp0jc8YXQKx9DiJ2k1dkvGsn5A=
+golang.org/x/tools v0.0.0-20190524140312-2c0ae7006135/go.mod h1:RgjU9mgBXZiqYHBnxXauZ1Gv1EHHAz9KjViQ78xBX0Q=
 golang.org/x/tools v0.0.0-20190524210228-3d17549cdc6b/go.mod h1:RgjU9mgBXZiqYHBnxXauZ1Gv1EHHAz9KjViQ78xBX0Q=
+golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 gonum.org/v1/gonum v0.0.0-20180816165407-929014505bf4/go.mod h1:Y+Yx5eoAFn32cQvJDxZx5Dpnq+c3wtXuadVZAcxbbBo=
 gonum.org/v1/gonum v0.7.0 h1:Hdks0L0hgznZLG9nzXb8vZ0rRvqNvAcgAp84y7Mwkgw=
 gonum.org/v1/gonum v0.7.0/go.mod h1:L02bwd0sqlsvRv41G7wGWFCsVNZFv/k1xzGIxeANHGM=
@@ -368,13 +412,37 @@ gonum.org/v1/netlib v0.0.0-20190313105609-8cb42192e0e0/go.mod h1:wa6Ws7BG/ESfp6d
 gonum.org/v1/plot v0.0.0-20190515093506-e2840ee46a6b/go.mod h1:Wt8AAjI+ypCyYX3nZBvf6cAIx93T+c/OS2HFAYskSZc=
 google.golang.org/appengine v1.1.0 h1:igQkv0AAhEIvTEpD5LIpAfav2eeVO9HBTjvKHVJPRSs=
 google.golang.org/appengine v1.1.0/go.mod h1:EbEs0AVv82hx2wNQdGPgUI5lhzA/G0D9YwlJXL52JkM=
+google.golang.org/appengine v1.4.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4=
 google.golang.org/genproto v0.0.0-20180817151627-c66870c02cf8 h1:Nw54tB0rB7hY/N0NQvRW8DG4Yk3Q6T9cu9RcFQDu1tc=
 google.golang.org/genproto v0.0.0-20180817151627-c66870c02cf8/go.mod h1:JiN7NxoALGmiZfu7CAH4rXhgtRTLTxftemlI0sWmxmc=
 google.golang.org/genproto v0.0.0-20181202183823-bd91e49a0898 h1:yvw+zsSmSM02Z5H3ZdEV7B7Ql7eFrjQTnmByJvK+3J8=
 google.golang.org/genproto v0.0.0-20181202183823-bd91e49a0898/go.mod h1:7Ep/1NZk928CDR8SjdVbjWNpdIf6nzjE3BTgJDr2Atg=
+google.golang.org/genproto v0.0.0-20190819201941-24fa4b261c55/go.mod h1:DMBHOl98Agz4BDEuKkezgsaosCRResVns1a3J2ZsMNc=
+google.golang.org/genproto v0.0.0-20200526211855-cb27e3aa2013 h1:+kGHl1aib/qcwaRi1CbqBZ1rk19r85MNUf8HaBghugY=
+google.golang.org/genproto v0.0.0-20200526211855-cb27e3aa2013/go.mod h1:NbSheEEYHJ7i3ixzK3sjbqSGDJWnxyFXZblF3eUsNvo=
+google.golang.org/genproto v0.0.0-20210122163508-8081c04a3579 h1:Iwh0ba2kTgq2Q6mJiXhzrrjD7h11nEVnbMHFmp0/HsQ=
+google.golang.org/genproto v0.0.0-20210122163508-8081c04a3579/go.mod h1:FWY/as6DDZQgahTzZj3fqbO1CbirC29ZNUFHwi0/+no=
 google.golang.org/grpc v1.16.0/go.mod h1:0JHn/cJsOMiMfNA9+DeHDlAU7KAAB5GDlYFpa9MZMio=
 google.golang.org/grpc v1.17.0 h1:TRJYBgMclJvGYn2rIMjj+h9KtMt5r1Ij7ODVRIZkwhk=
 google.golang.org/grpc v1.17.0/go.mod h1:6QZJwpn2B+Zp71q/5VxRsJ6NXXVCE5NRUHRo+f3cWCs=
+google.golang.org/grpc v1.19.0/go.mod h1:mqu4LbDTu4XGKhr4mRzUsmM4RtVoemTSY81AxZiDr8c=
+google.golang.org/grpc v1.23.0/go.mod h1:Y5yQAOtifL1yxbo5wqy6BxZv8vAUGQwXBOALyacEbxg=
+google.golang.org/grpc v1.25.1/go.mod h1:c3i+UQWmh7LiEpx4sFZnkU36qjEYZ0imhYfXVyQciAY=
+google.golang.org/grpc v1.27.0 h1:rRYRFMVgRv6E0D70Skyfsr28tDXIuuPZyWGMPdMcnXg=
+google.golang.org/grpc v1.27.0/go.mod h1:qbnxyOmOxrQa7FizSgH+ReBfzJrCY1pSN7KXBS8abTk=
+google.golang.org/grpc v1.35.0 h1:TwIQcH3es+MojMVojxxfQ3l3OF2KzlRxML2xZq0kRo8=
+google.golang.org/grpc v1.35.0/go.mod h1:qjiiYl8FncCW8feJPdyg3v6XW24KsRHe+dy9BAGRRjU=
+google.golang.org/protobuf v0.0.0-20200109180630-ec00e32a8dfd/go.mod h1:DFci5gLYBciE7Vtevhsrf46CRTquxDuWsQurQQe4oz8=
+google.golang.org/protobuf v0.0.0-20200221191635-4d8936d0db64/go.mod h1:kwYJMbMJ01Woi6D6+Kah6886xMZcty6N08ah7+eCXa0=
+google.golang.org/protobuf v0.0.0-20200228230310-ab0ca4ff8a60/go.mod h1:cfTl7dwQJ+fmap5saPgwCLgHXTUD7jkjRqWcaiX5VyM=
+google.golang.org/protobuf v1.20.1-0.20200309200217-e05f789c0967/go.mod h1:A+miEFZTKqfCUM6K7xSMQL9OKL/b6hQv+e19PK+JZNE=
+google.golang.org/protobuf v1.21.0/go.mod h1:47Nbq4nVaFHyn7ilMalzfO3qCViNmqZ2kzikPIcrTAo=
+google.golang.org/protobuf v1.22.0/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU=
+google.golang.org/protobuf v1.23.0/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU=
+google.golang.org/protobuf v1.23.1-0.20200526195155-81db48ad09cc/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU=
+google.golang.org/protobuf v1.24.0/go.mod h1:r/3tXBNzIEhYS9I1OUVjXDlt8tc493IdKGjtUeSXeh4=
+google.golang.org/protobuf v1.25.0 h1:Ejskq+SyPohKW+1uil0JJMtmHCgJPJ/qWTxr8qp+R4c=
+google.golang.org/protobuf v1.25.0/go.mod h1:9JNX74DMeImyA3h4bdi1ymwjUzf21/xIlbajtzgsN7c=
 gopkg.in/airbrake/gobrake.v2 v2.0.9/go.mod h1:/h5ZAUhDkGaJfjzjKLSjv6zCL6O0LLBxU4K+aSYdM/U=
 gopkg.in/alecthomas/kingpin.v2 v2.2.6 h1:jMFz6MfLP0/4fUyZle81rXUoxOBFi19VUFKVDOQfozc=
 gopkg.in/alecthomas/kingpin.v2 v2.2.6/go.mod h1:FMv+mEhP44yOT+4EoQTLFTRgOQ1FBLkstjWtayDeSgw=
@@ -393,6 +461,8 @@ gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.2 h1:ZCJp+EgiOT7lHqUV2J862kp8Qj64Jo6az82+3Td9dZw=
 gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 honnef.co/go/tools v0.0.0-20180728063816-88497007e858/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
+honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
+honnef.co/go/tools v0.0.0-20190523083050-ea95bdfd59fc/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 mvdan.cc/interfacer v0.0.0-20180901003855-c20040233aed/go.mod h1:Xkxe497xwlCKkIaQYRfC7CSLworTXY9RMqwhhCm+8Nc=
 mvdan.cc/lint v0.0.0-20170908181259-adc824a0674b/go.mod h1:2odslEg/xrtNQqCYg2/jCoyKnw3vv5biOc3JnIcYfL4=
 mvdan.cc/unparam v0.0.0-20190209190245-fbb59629db34/go.mod h1:H6SUd1XjIs+qQCyskXg5OFSrilMRUkD8ePJpHKDPaeY=

lazy.sh

@@ -42,7 +42,7 @@ godep() {
     cat tools.go | grep _ | awk -F'"' '{print $2}' | tee | xargs -tI '{}' go install '{}'
     set +x
     popd
-    if ! type stringer || ! type protoc-gen-go || ! type enumer || ! type goimports || ! type golangci-lint || ! type gocovmerge; then
+    if ! type stringer || ! type protoc-gen-go || ! type protoc-gen-go-grpc || ! type enumer || ! type goimports || ! type golangci-lint || ! type gocovmerge; then
         echo "Installed dependencies but can't find them in \$PATH, adjust it to contain \$GOPATH/bin" 1>&2
         exit 1
     fi

platformtest/tests/replication.go

@@ -35,7 +35,7 @@ type replicationInvocation struct {
 	rfsRoot           string
 	interceptSender   func(e *endpoint.Sender) logic.Sender
 	interceptReceiver func(e *endpoint.Receiver) logic.Receiver
-	guarantee         pdu.ReplicationConfigProtection
+	guarantee         *pdu.ReplicationConfigProtection
 }
 
 func (i replicationInvocation) Do(ctx *platformtest.Context) *report.Report {
@@ -67,8 +67,8 @@ func (i replicationInvocation) Do(ctx *platformtest.Context) *report.Report {
 	}))
 	plannerPolicy := logic.PlannerPolicy{
 		EncryptedSend: logic.TriFromBool(false),
-		ReplicationConfig: pdu.ReplicationConfig{
+		ReplicationConfig: &pdu.ReplicationConfig{
-			Protection: &i.guarantee,
+			Protection: i.guarantee,
 		},
 	}
 
@@ -106,7 +106,7 @@ func ReplicationIncrementalIsPossibleIfCommonSnapshotIsDestroyed(ctx *platformte
 		rjid:      rjid,
 		sfs:       sfs,
 		rfsRoot:   rfsRoot,
-		guarantee: *pdu.ReplicationConfigProtectionWithKind(pdu.ReplicationGuaranteeKind_GuaranteeResumability),
+		guarantee: pdu.ReplicationConfigProtectionWithKind(pdu.ReplicationGuaranteeKind_GuaranteeResumability),
 	}
 	rfs := rep.ReceiveSideFilesystem()
 
@@ -170,7 +170,7 @@ func implReplicationIncrementalCleansUpStaleAbstractions(ctx *platformtest.Conte
 		rjid:      rjid,
 		sfs:       sfs,
 		rfsRoot:   rfsRoot,
-		guarantee: *pdu.ReplicationConfigProtectionWithKind(pdu.ReplicationGuaranteeKind_GuaranteeResumability),
+		guarantee: pdu.ReplicationConfigProtectionWithKind(pdu.ReplicationGuaranteeKind_GuaranteeResumability),
 	}
 	rfs := rep.ReceiveSideFilesystem()
 
@@ -343,7 +343,7 @@ func (s *PartialSender) Send(ctx context.Context, r *pdu.SendReq) (r1 *pdu.SendR
 func ReplicationIsResumableFullSend__both_GuaranteeResumability(ctx *platformtest.Context) {
 
 	setup := replicationIsResumableFullSendSetup{
-		protection: pdu.ReplicationConfigProtection{
+		protection: &pdu.ReplicationConfigProtection{
 			Initial:     pdu.ReplicationGuaranteeKind_GuaranteeResumability,
 			Incremental: pdu.ReplicationGuaranteeKind_GuaranteeResumability,
 		},
@@ -358,7 +358,7 @@ func ReplicationIsResumableFullSend__both_GuaranteeResumability(ctx *platformtes
 func ReplicationIsResumableFullSend__initial_GuaranteeResumability_incremental_GuaranteeIncrementalReplication(ctx *platformtest.Context) {
 
 	setup := replicationIsResumableFullSendSetup{
-		protection: pdu.ReplicationConfigProtection{
+		protection: &pdu.ReplicationConfigProtection{
 			Initial:     pdu.ReplicationGuaranteeKind_GuaranteeResumability,
 			Incremental: pdu.ReplicationGuaranteeKind_GuaranteeIncrementalReplication,
 		},
@@ -373,7 +373,7 @@ func ReplicationIsResumableFullSend__initial_GuaranteeResumability_incremental_G
 func ReplicationIsResumableFullSend__initial_GuaranteeIncrementalReplication_incremental_GuaranteeIncrementalReplication(ctx *platformtest.Context) {
 
 	setup := replicationIsResumableFullSendSetup{
-		protection: pdu.ReplicationConfigProtection{
+		protection: &pdu.ReplicationConfigProtection{
 			Initial:     pdu.ReplicationGuaranteeKind_GuaranteeIncrementalReplication,
 			Incremental: pdu.ReplicationGuaranteeKind_GuaranteeIncrementalReplication,
 		},
@@ -386,7 +386,7 @@ func ReplicationIsResumableFullSend__initial_GuaranteeIncrementalReplication_inc
 }
 
 type replicationIsResumableFullSendSetup struct {
-	protection                                                          pdu.ReplicationConfigProtection
+	protection                                                          *pdu.ReplicationConfigProtection
 	expectDatasetIsBusyErrorWhenDestroySnapshotWhilePartiallyReplicated bool
 	expectAllThreeSnapshotsToThreeBePresentAfterLoop                    bool
 	expectNoSnapshotsOnReceiverAfterLoop                                bool
@@ -501,7 +501,7 @@ func ReplicationIncrementalDestroysStepHoldsIffIncrementalStepHoldsAreDisabledBu
 			rjid:      rjid,
 			sfs:       sfs,
 			rfsRoot:   rfsRoot,
-			guarantee: *pdu.ReplicationConfigProtectionWithKind(pdu.ReplicationGuaranteeKind_GuaranteeResumability),
+			guarantee: pdu.ReplicationConfigProtectionWithKind(pdu.ReplicationGuaranteeKind_GuaranteeResumability),
 		}
 		rfs := rep.ReceiveSideFilesystem()
 		report := rep.Do(ctx)
@@ -528,7 +528,7 @@ func ReplicationIncrementalDestroysStepHoldsIffIncrementalStepHoldsAreDisabledBu
 			rjid:      rjid,
 			sfs:       sfs,
 			rfsRoot:   rfsRoot,
-			guarantee: *pdu.ReplicationConfigProtectionWithKind(pdu.ReplicationGuaranteeKind_GuaranteeResumability), // !
+			guarantee: pdu.ReplicationConfigProtectionWithKind(pdu.ReplicationGuaranteeKind_GuaranteeResumability), // !
 			interceptSender: func(e *endpoint.Sender) logic.Sender {
 				return &PartialSender{Sender: e, failAfterByteCount: 1 << 20}
 			},
@@ -574,7 +574,7 @@ func ReplicationIncrementalDestroysStepHoldsIffIncrementalStepHoldsAreDisabledBu
 		rjid:      rjid,
 		sfs:       sfs,
 		rfsRoot:   rfsRoot,
-		guarantee: *pdu.ReplicationConfigProtectionWithKind(pdu.ReplicationGuaranteeKind_GuaranteeIncrementalReplication), // !
+		guarantee: pdu.ReplicationConfigProtectionWithKind(pdu.ReplicationGuaranteeKind_GuaranteeIncrementalReplication), // !
 		interceptSender: func(e *endpoint.Sender) logic.Sender {
 			return &PartialSender{Sender: e, failAfterByteCount: 1 << 20}
 		},
@@ -684,7 +684,7 @@ func replicationStepCompletedLostBehavior_impl(ctx *platformtest.Context, guaran
 			rjid:      rjid,
 			sfs:       sfs,
 			rfsRoot:   rfsRoot,
-			guarantee: *pdu.ReplicationConfigProtectionWithKind(guaranteeKind),
+			guarantee: pdu.ReplicationConfigProtectionWithKind(guaranteeKind),
 		}
 		rfs := rep.ReceiveSideFilesystem()
 		report := rep.Do(ctx)
@@ -702,7 +702,7 @@ func replicationStepCompletedLostBehavior_impl(ctx *platformtest.Context, guaran
 		rjid:      rjid,
 		sfs:       sfs,
 		rfsRoot:   rfsRoot,
-		guarantee: *pdu.ReplicationConfigProtectionWithKind(guaranteeKind),
+		guarantee: pdu.ReplicationConfigProtectionWithKind(guaranteeKind),
 		interceptSender: func(e *endpoint.Sender) logic.Sender {
 			return &FailSendCompletedSender{e}
 		},
@@ -750,7 +750,7 @@ func replicationStepCompletedLostBehavior_impl(ctx *platformtest.Context, guaran
 			rjid:      rjid,
 			sfs:       sfs,
 			rfsRoot:   rfsRoot,
-			guarantee: *pdu.ReplicationConfigProtectionWithKind(guaranteeKind),
+			guarantee: pdu.ReplicationConfigProtectionWithKind(guaranteeKind),
 		}
 		report := rep.Do(ctx)
 		ctx.Logf("expecting failure:\n%s", pretty.Sprint(report))
@@ -818,7 +818,7 @@ func ReplicationReceiverErrorWhileStillSending(ctx *platformtest.Context) {
 		rjid:      rjid,
 		sfs:       sfs,
 		rfsRoot:   rfsRoot,
-		guarantee: *pdu.ReplicationConfigProtectionWithKind(pdu.ReplicationGuaranteeKind_GuaranteeNothing),
+		guarantee: pdu.ReplicationConfigProtectionWithKind(pdu.ReplicationGuaranteeKind_GuaranteeNothing),
 		interceptReceiver: func(r *endpoint.Receiver) logic.Receiver {
 			return &ErroringReceiver{recvErr: mockRecvErr, Receiver: r}
 		},
@@ -880,7 +880,7 @@ func ReplicationFailingInitialParentProhibitsChildReplication(ctx *platformtest.
 		rjid:      rjid,
 		sfilter:   sfilter,
 		rfsRoot:   rfsRoot,
-		guarantee: *pdu.ReplicationConfigProtectionWithKind(pdu.ReplicationGuaranteeKind_GuaranteeNothing),
+		guarantee: pdu.ReplicationConfigProtectionWithKind(pdu.ReplicationGuaranteeKind_GuaranteeNothing),
 		interceptReceiver: func(r *endpoint.Receiver) logic.Receiver {
 			return &ErroringReceiver{recvErr: mockRecvErr, Receiver: r}
 		},

replication/logic/pdu/pdu.proto

@@ -1,5 +1,5 @@
 syntax = "proto3";
-option go_package = "pdu";
+option go_package = ".;pdu";
 
 service Replication {
   rpc Ping(PingReq) returns (PingRes);

replication/logic/pdu/pdu_grpc.pb.go

@@ -0,0 +1,281 @@
+// Code generated by protoc-gen-go-grpc. DO NOT EDIT.
+
+package pdu
+
+import (
+	context "context"
+	grpc "google.golang.org/grpc"
+	codes "google.golang.org/grpc/codes"
+	status "google.golang.org/grpc/status"
+)
+
+// This is a compile-time assertion to ensure that this generated file
+// is compatible with the grpc package it is being compiled against.
+// Requires gRPC-Go v1.32.0 or later.
+const _ = grpc.SupportPackageIsVersion7
+
+// ReplicationClient is the client API for Replication service.
+//
+// For semantics around ctx use and closing/ending streaming RPCs, please refer to https://pkg.go.dev/google.golang.org/grpc/?tab=doc#ClientConn.NewStream.
+type ReplicationClient interface {
+	Ping(ctx context.Context, in *PingReq, opts ...grpc.CallOption) (*PingRes, error)
+	ListFilesystems(ctx context.Context, in *ListFilesystemReq, opts ...grpc.CallOption) (*ListFilesystemRes, error)
+	ListFilesystemVersions(ctx context.Context, in *ListFilesystemVersionsReq, opts ...grpc.CallOption) (*ListFilesystemVersionsRes, error)
+	DestroySnapshots(ctx context.Context, in *DestroySnapshotsReq, opts ...grpc.CallOption) (*DestroySnapshotsRes, error)
+	ReplicationCursor(ctx context.Context, in *ReplicationCursorReq, opts ...grpc.CallOption) (*ReplicationCursorRes, error)
+	SendCompleted(ctx context.Context, in *SendCompletedReq, opts ...grpc.CallOption) (*SendCompletedRes, error)
+}
+
+type replicationClient struct {
+	cc grpc.ClientConnInterface
+}
+
+func NewReplicationClient(cc grpc.ClientConnInterface) ReplicationClient {
+	return &replicationClient{cc}
+}
+
+func (c *replicationClient) Ping(ctx context.Context, in *PingReq, opts ...grpc.CallOption) (*PingRes, error) {
+	out := new(PingRes)
+	err := c.cc.Invoke(ctx, "/Replication/Ping", in, out, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+func (c *replicationClient) ListFilesystems(ctx context.Context, in *ListFilesystemReq, opts ...grpc.CallOption) (*ListFilesystemRes, error) {
+	out := new(ListFilesystemRes)
+	err := c.cc.Invoke(ctx, "/Replication/ListFilesystems", in, out, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+func (c *replicationClient) ListFilesystemVersions(ctx context.Context, in *ListFilesystemVersionsReq, opts ...grpc.CallOption) (*ListFilesystemVersionsRes, error) {
+	out := new(ListFilesystemVersionsRes)
+	err := c.cc.Invoke(ctx, "/Replication/ListFilesystemVersions", in, out, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+func (c *replicationClient) DestroySnapshots(ctx context.Context, in *DestroySnapshotsReq, opts ...grpc.CallOption) (*DestroySnapshotsRes, error) {
+	out := new(DestroySnapshotsRes)
+	err := c.cc.Invoke(ctx, "/Replication/DestroySnapshots", in, out, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+func (c *replicationClient) ReplicationCursor(ctx context.Context, in *ReplicationCursorReq, opts ...grpc.CallOption) (*ReplicationCursorRes, error) {
+	out := new(ReplicationCursorRes)
+	err := c.cc.Invoke(ctx, "/Replication/ReplicationCursor", in, out, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+func (c *replicationClient) SendCompleted(ctx context.Context, in *SendCompletedReq, opts ...grpc.CallOption) (*SendCompletedRes, error) {
+	out := new(SendCompletedRes)
+	err := c.cc.Invoke(ctx, "/Replication/SendCompleted", in, out, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+// ReplicationServer is the server API for Replication service.
+// All implementations must embed UnimplementedReplicationServer
+// for forward compatibility
+type ReplicationServer interface {
+	Ping(context.Context, *PingReq) (*PingRes, error)
+	ListFilesystems(context.Context, *ListFilesystemReq) (*ListFilesystemRes, error)
+	ListFilesystemVersions(context.Context, *ListFilesystemVersionsReq) (*ListFilesystemVersionsRes, error)
+	DestroySnapshots(context.Context, *DestroySnapshotsReq) (*DestroySnapshotsRes, error)
+	ReplicationCursor(context.Context, *ReplicationCursorReq) (*ReplicationCursorRes, error)
+	SendCompleted(context.Context, *SendCompletedReq) (*SendCompletedRes, error)
+	mustEmbedUnimplementedReplicationServer()
+}
+
+// UnimplementedReplicationServer must be embedded to have forward compatible implementations.
+type UnimplementedReplicationServer struct {
+}
+
+func (UnimplementedReplicationServer) Ping(context.Context, *PingReq) (*PingRes, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method Ping not implemented")
+}
+func (UnimplementedReplicationServer) ListFilesystems(context.Context, *ListFilesystemReq) (*ListFilesystemRes, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method ListFilesystems not implemented")
+}
+func (UnimplementedReplicationServer) ListFilesystemVersions(context.Context, *ListFilesystemVersionsReq) (*ListFilesystemVersionsRes, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method ListFilesystemVersions not implemented")
+}
+func (UnimplementedReplicationServer) DestroySnapshots(context.Context, *DestroySnapshotsReq) (*DestroySnapshotsRes, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method DestroySnapshots not implemented")
+}
+func (UnimplementedReplicationServer) ReplicationCursor(context.Context, *ReplicationCursorReq) (*ReplicationCursorRes, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method ReplicationCursor not implemented")
+}
+func (UnimplementedReplicationServer) SendCompleted(context.Context, *SendCompletedReq) (*SendCompletedRes, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method SendCompleted not implemented")
+}
+func (UnimplementedReplicationServer) mustEmbedUnimplementedReplicationServer() {}
+
+// UnsafeReplicationServer may be embedded to opt out of forward compatibility for this service.
+// Use of this interface is not recommended, as added methods to ReplicationServer will
+// result in compilation errors.
+type UnsafeReplicationServer interface {
+	mustEmbedUnimplementedReplicationServer()
+}
+
+func RegisterReplicationServer(s grpc.ServiceRegistrar, srv ReplicationServer) {
+	s.RegisterService(&Replication_ServiceDesc, srv)
+}
+
+func _Replication_Ping_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(PingReq)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(ReplicationServer).Ping(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/Replication/Ping",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(ReplicationServer).Ping(ctx, req.(*PingReq))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+func _Replication_ListFilesystems_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(ListFilesystemReq)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(ReplicationServer).ListFilesystems(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/Replication/ListFilesystems",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(ReplicationServer).ListFilesystems(ctx, req.(*ListFilesystemReq))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+func _Replication_ListFilesystemVersions_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(ListFilesystemVersionsReq)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(ReplicationServer).ListFilesystemVersions(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/Replication/ListFilesystemVersions",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(ReplicationServer).ListFilesystemVersions(ctx, req.(*ListFilesystemVersionsReq))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+func _Replication_DestroySnapshots_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(DestroySnapshotsReq)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(ReplicationServer).DestroySnapshots(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/Replication/DestroySnapshots",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(ReplicationServer).DestroySnapshots(ctx, req.(*DestroySnapshotsReq))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+func _Replication_ReplicationCursor_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(ReplicationCursorReq)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(ReplicationServer).ReplicationCursor(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/Replication/ReplicationCursor",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(ReplicationServer).ReplicationCursor(ctx, req.(*ReplicationCursorReq))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+func _Replication_SendCompleted_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(SendCompletedReq)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(ReplicationServer).SendCompleted(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/Replication/SendCompleted",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(ReplicationServer).SendCompleted(ctx, req.(*SendCompletedReq))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+// Replication_ServiceDesc is the grpc.ServiceDesc for Replication service.
+// It's only intended for direct use with grpc.RegisterService,
+// and not to be introspected or modified (even as a copy)
+var Replication_ServiceDesc = grpc.ServiceDesc{
+	ServiceName: "Replication",
+	HandlerType: (*ReplicationServer)(nil),
+	Methods: []grpc.MethodDesc{
+		{
+			MethodName: "Ping",
+			Handler:    _Replication_Ping_Handler,
+		},
+		{
+			MethodName: "ListFilesystems",
+			Handler:    _Replication_ListFilesystems_Handler,
+		},
+		{
+			MethodName: "ListFilesystemVersions",
+			Handler:    _Replication_ListFilesystemVersions_Handler,
+		},
+		{
+			MethodName: "DestroySnapshots",
+			Handler:    _Replication_DestroySnapshots_Handler,
+		},
+		{
+			MethodName: "ReplicationCursor",
+			Handler:    _Replication_ReplicationCursor_Handler,
+		},
+		{
+			MethodName: "SendCompleted",
+			Handler:    _Replication_SendCompleted_Handler,
+		},
+	},
+	Streams:  []grpc.StreamDesc{},
+	Metadata: "pdu.proto",
+}

replication/logic/pdu/pdu_test.go

@@ -10,7 +10,7 @@ import (
 func TestFilesystemVersion_RelName(t *testing.T) {
 
 	type TestCase struct {
-		In    FilesystemVersion
+		In    *FilesystemVersion
 		Out   string
 		Panic bool
 	}
@@ -18,7 +18,7 @@ func TestFilesystemVersion_RelName(t *testing.T) {
 	creat := FilesystemVersionCreation(time.Now())
 	tcs := []TestCase{
 		{
-			In: FilesystemVersion{
+			In: &FilesystemVersion{
 				Type:     FilesystemVersion_Snapshot,
 				Name:     "foobar",
 				Creation: creat,
@@ -26,7 +26,7 @@ func TestFilesystemVersion_RelName(t *testing.T) {
 			Out: "@foobar",
 		},
 		{
-			In: FilesystemVersion{
+			In: &FilesystemVersion{
 				Type:     FilesystemVersion_Bookmark,
 				Name:     "foobar",
 				Creation: creat,
@@ -34,7 +34,7 @@ func TestFilesystemVersion_RelName(t *testing.T) {
 			Out: "#foobar",
 		},
 		{
-			In: FilesystemVersion{
+			In: &FilesystemVersion{
 				Type:     2342,
 				Name:     "foobar",
 				Creation: creat,

replication/logic/replication_logic.go

@@ -117,7 +117,7 @@ func (p *Planner) WaitForConnectivity(ctx context.Context) error {
 type Filesystem struct {
 	sender   Sender
 	receiver Receiver
-	policy   PlannerPolicy
+	policy   PlannerPolicy // immutable, it's .ReplicationConfig member is a pointer and copied into messages
 
 	Path                 string             // compat
 	receiverFS, senderFS *pdu.Filesystem    // receiverFS may be nil, senderFS never nil
@@ -569,7 +569,7 @@ func (s *Step) buildSendRequest(dryRun bool) (sr *pdu.SendReq) {
 		Encrypted:         s.encrypt.ToPDU(),
 		ResumeToken:       s.resumeToken,
 		DryRun:            dryRun,
-		ReplicationConfig: &s.parent.policy.ReplicationConfig,
+		ReplicationConfig: s.parent.policy.ReplicationConfig,
 	}
 	return sr
 }
@@ -614,7 +614,7 @@ func (s *Step) doReplication(ctx context.Context) error {
 		Filesystem:        fs,
 		To:                sr.GetTo(),
 		ClearResumeToken:  !sres.UsedResumeToken,
-		ReplicationConfig: &s.parent.policy.ReplicationConfig,
+		ReplicationConfig: s.parent.policy.ReplicationConfig,
 	}
 	log.Debug("initiate receive request")
 	_, err = s.receiver.Receive(ctx, rr, byteCountingStream)

replication/logic/replication_logic_policy.go

@@ -9,7 +9,7 @@ import (
 
 type PlannerPolicy struct {
 	EncryptedSend     tri // all sends must be encrypted (send -w, and encryption!=off)
-	ReplicationConfig pdu.ReplicationConfig
+	ReplicationConfig *pdu.ReplicationConfig
 }
 
 func ReplicationConfigFromConfig(in *config.Replication) (*pdu.ReplicationConfig, error) {

rpc/dataconn/dataconn_client.go

@@ -7,7 +7,7 @@ import (
 	"io"
 	"strings"
 
-	"github.com/golang/protobuf/proto"
+	"google.golang.org/protobuf/proto"
 
 	"github.com/zrepl/zrepl/replication/logic/pdu"
 	"github.com/zrepl/zrepl/rpc/dataconn/stream"

rpc/dataconn/dataconn_server.go

@@ -7,7 +7,7 @@ import (
 	"io"
 	"sync"
 
-	"github.com/golang/protobuf/proto"
+	"google.golang.org/protobuf/proto"
 
 	"github.com/zrepl/zrepl/logger"
 	"github.com/zrepl/zrepl/replication/logic/pdu"

rpc/grpcclientidentity/authlistener_grpc_adaptor.go

@@ -16,7 +16,6 @@ import (
 	"context"
 	"fmt"
 	"net"
-	"time"
 
 	"google.golang.org/grpc"
 	"google.golang.org/grpc/credentials"
@@ -28,12 +27,10 @@ import (
 
 type Logger = logger.Logger
 
-type GRPCDialFunction = func(string, time.Duration) (net.Conn, error)
+type GRPCDialFunction = func(context.Context, string) (net.Conn, error)
 
 func NewDialer(logger Logger, connecter transport.Connecter) GRPCDialFunction {
-	return func(s string, duration time.Duration) (conn net.Conn, e error) {
+	return func(ctx context.Context, s string) (conn net.Conn, e error) {
-		ctx, cancel := context.WithTimeout(context.Background(), duration)
-		defer cancel()
 		nc, err := connecter.Connect(ctx)
 		// TODO find better place (callback from gRPC?) where to log errors
 		// we want the users to know, though

rpc/grpcclientidentity/example/grpcauth.proto

@@ -1,8 +1,8 @@
 syntax = "proto3";
+option go_package = ".;pdu";
 
 package pdu;
 
-
 service Greeter {
     rpc Greet(GreetRequest) returns (GreetResponse) {}
 }
@@ -13,4 +13,4 @@ message GreetRequest {
 
 message GreetResponse {
     string msg = 1;
-}
+}

rpc/grpcclientidentity/example/main.go

@@ -94,7 +94,7 @@ func server() {
 
 	srv, serve := grpchelper.NewServer(authListener, clientIdentityKey, log, nil)
 
-	svc := &greeter{"hello "}
+	svc := &greeter{prepend: "hello "}
 	pdu.RegisterGreeterServer(srv, svc)
 
 	if err := serve(); err != nil {
@@ -103,6 +103,7 @@ func server() {
 }
 
 type greeter struct {
+	pdu.UnsafeGreeterServer
 	prepend string
 }
 

rpc/grpcclientidentity/example/pdu/grpcauth.pb.go

@@ -1,193 +1,214 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
+// versions:
+// 	protoc-gen-go v1.25.0
+// 	protoc        v3.12.4
 // source: grpcauth.proto
 
 package pdu
 
 import (
-	fmt "fmt"
 	proto "github.com/golang/protobuf/proto"
-	context "golang.org/x/net/context"
+	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
-	grpc "google.golang.org/grpc"
+	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
-	math "math"
+	reflect "reflect"
+	sync "sync"
 )
 
-// Reference imports to suppress errors if they are not otherwise used.
+const (
-var _ = proto.Marshal
+	// Verify that this generated code is sufficiently up-to-date.
-var _ = fmt.Errorf
+	_ = protoimpl.EnforceVersion(20 - protoimpl.MinVersion)
-var _ = math.Inf
+	// Verify that runtime/protoimpl is sufficiently up-to-date.
+	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
+)
 
-// This is a compile-time assertion to ensure that this generated file
+// This is a compile-time assertion that a sufficiently up-to-date version
-// is compatible with the proto package it is being compiled against.
+// of the legacy proto package is being used.
-// A compilation error at this line likely means your copy of the
+const _ = proto.ProtoPackageIsVersion4
-// proto package needs to be updated.
-const _ = proto.ProtoPackageIsVersion2 // please upgrade the proto package
 
 type GreetRequest struct {
-	Name                 string   `protobuf:"bytes,1,opt,name=name,proto3" json:"name,omitempty"`
+	state         protoimpl.MessageState
-	XXX_NoUnkeyedLiteral struct{} `json:"-"`
+	sizeCache     protoimpl.SizeCache
-	XXX_unrecognized     []byte   `json:"-"`
+	unknownFields protoimpl.UnknownFields
-	XXX_sizecache        int32    `json:"-"`
+
+	Name string `protobuf:"bytes,1,opt,name=name,proto3" json:"name,omitempty"`
 }
 
-func (m *GreetRequest) Reset()         { *m = GreetRequest{} }
+func (x *GreetRequest) Reset() {
-func (m *GreetRequest) String() string { return proto.CompactTextString(m) }
+	*x = GreetRequest{}
-func (*GreetRequest) ProtoMessage()    {}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_grpcauth_proto_msgTypes[0]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *GreetRequest) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*GreetRequest) ProtoMessage() {}
+
+func (x *GreetRequest) ProtoReflect() protoreflect.Message {
+	mi := &file_grpcauth_proto_msgTypes[0]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use GreetRequest.ProtoReflect.Descriptor instead.
 func (*GreetRequest) Descriptor() ([]byte, []int) {
-	return fileDescriptor_1dfba7be0cf69353, []int{0}
+	return file_grpcauth_proto_rawDescGZIP(), []int{0}
 }
 
-func (m *GreetRequest) XXX_Unmarshal(b []byte) error {
+func (x *GreetRequest) GetName() string {
-	return xxx_messageInfo_GreetRequest.Unmarshal(m, b)
+	if x != nil {
-}
+		return x.Name
-func (m *GreetRequest) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
-	return xxx_messageInfo_GreetRequest.Marshal(b, m, deterministic)
-}
-func (m *GreetRequest) XXX_Merge(src proto.Message) {
-	xxx_messageInfo_GreetRequest.Merge(m, src)
-}
-func (m *GreetRequest) XXX_Size() int {
-	return xxx_messageInfo_GreetRequest.Size(m)
-}
-func (m *GreetRequest) XXX_DiscardUnknown() {
-	xxx_messageInfo_GreetRequest.DiscardUnknown(m)
-}
-
-var xxx_messageInfo_GreetRequest proto.InternalMessageInfo
-
-func (m *GreetRequest) GetName() string {
-	if m != nil {
-		return m.Name
 	}
 	return ""
 }
 
 type GreetResponse struct {
-	Msg                  string   `protobuf:"bytes,1,opt,name=msg,proto3" json:"msg,omitempty"`
+	state         protoimpl.MessageState
-	XXX_NoUnkeyedLiteral struct{} `json:"-"`
+	sizeCache     protoimpl.SizeCache
-	XXX_unrecognized     []byte   `json:"-"`
+	unknownFields protoimpl.UnknownFields
-	XXX_sizecache        int32    `json:"-"`
+
+	Msg string `protobuf:"bytes,1,opt,name=msg,proto3" json:"msg,omitempty"`
 }
 
-func (m *GreetResponse) Reset()         { *m = GreetResponse{} }
+func (x *GreetResponse) Reset() {
-func (m *GreetResponse) String() string { return proto.CompactTextString(m) }
+	*x = GreetResponse{}
-func (*GreetResponse) ProtoMessage()    {}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_grpcauth_proto_msgTypes[1]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *GreetResponse) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*GreetResponse) ProtoMessage() {}
+
+func (x *GreetResponse) ProtoReflect() protoreflect.Message {
+	mi := &file_grpcauth_proto_msgTypes[1]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use GreetResponse.ProtoReflect.Descriptor instead.
 func (*GreetResponse) Descriptor() ([]byte, []int) {
-	return fileDescriptor_1dfba7be0cf69353, []int{1}
+	return file_grpcauth_proto_rawDescGZIP(), []int{1}
 }
 
-func (m *GreetResponse) XXX_Unmarshal(b []byte) error {
+func (x *GreetResponse) GetMsg() string {
-	return xxx_messageInfo_GreetResponse.Unmarshal(m, b)
+	if x != nil {
-}
+		return x.Msg
-func (m *GreetResponse) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
-	return xxx_messageInfo_GreetResponse.Marshal(b, m, deterministic)
-}
-func (m *GreetResponse) XXX_Merge(src proto.Message) {
-	xxx_messageInfo_GreetResponse.Merge(m, src)
-}
-func (m *GreetResponse) XXX_Size() int {
-	return xxx_messageInfo_GreetResponse.Size(m)
-}
-func (m *GreetResponse) XXX_DiscardUnknown() {
-	xxx_messageInfo_GreetResponse.DiscardUnknown(m)
-}
-
-var xxx_messageInfo_GreetResponse proto.InternalMessageInfo
-
-func (m *GreetResponse) GetMsg() string {
-	if m != nil {
-		return m.Msg
 	}
 	return ""
 }
 
-func init() {
+var File_grpcauth_proto protoreflect.FileDescriptor
-	proto.RegisterType((*GreetRequest)(nil), "pdu.GreetRequest")
+
-	proto.RegisterType((*GreetResponse)(nil), "pdu.GreetResponse")
+var file_grpcauth_proto_rawDesc = []byte{
+	0x0a, 0x0e, 0x67, 0x72, 0x70, 0x63, 0x61, 0x75, 0x74, 0x68, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f,
+	0x12, 0x03, 0x70, 0x64, 0x75, 0x22, 0x22, 0x0a, 0x0c, 0x47, 0x72, 0x65, 0x65, 0x74, 0x52, 0x65,
+	0x71, 0x75, 0x65, 0x73, 0x74, 0x12, 0x12, 0x0a, 0x04, 0x6e, 0x61, 0x6d, 0x65, 0x18, 0x01, 0x20,
+	0x01, 0x28, 0x09, 0x52, 0x04, 0x6e, 0x61, 0x6d, 0x65, 0x22, 0x21, 0x0a, 0x0d, 0x47, 0x72, 0x65,
+	0x65, 0x74, 0x52, 0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73, 0x65, 0x12, 0x10, 0x0a, 0x03, 0x6d, 0x73,
+	0x67, 0x18, 0x01, 0x20, 0x01, 0x28, 0x09, 0x52, 0x03, 0x6d, 0x73, 0x67, 0x32, 0x3b, 0x0a, 0x07,
+	0x47, 0x72, 0x65, 0x65, 0x74, 0x65, 0x72, 0x12, 0x30, 0x0a, 0x05, 0x47, 0x72, 0x65, 0x65, 0x74,
+	0x12, 0x11, 0x2e, 0x70, 0x64, 0x75, 0x2e, 0x47, 0x72, 0x65, 0x65, 0x74, 0x52, 0x65, 0x71, 0x75,
+	0x65, 0x73, 0x74, 0x1a, 0x12, 0x2e, 0x70, 0x64, 0x75, 0x2e, 0x47, 0x72, 0x65, 0x65, 0x74, 0x52,
+	0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73, 0x65, 0x22, 0x00, 0x42, 0x07, 0x5a, 0x05, 0x2e, 0x3b, 0x70,
+	0x64, 0x75, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
 }
 
-func init() { proto.RegisterFile("grpcauth.proto", fileDescriptor_1dfba7be0cf69353) }
+var (
+	file_grpcauth_proto_rawDescOnce sync.Once
+	file_grpcauth_proto_rawDescData = file_grpcauth_proto_rawDesc
+)
 
-var fileDescriptor_1dfba7be0cf69353 = []byte{
+func file_grpcauth_proto_rawDescGZIP() []byte {
-	// 137 bytes of a gzipped FileDescriptorProto
+	file_grpcauth_proto_rawDescOnce.Do(func() {
-	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0xe2, 0xe2, 0x4b, 0x2f, 0x2a, 0x48,
+		file_grpcauth_proto_rawDescData = protoimpl.X.CompressGZIP(file_grpcauth_proto_rawDescData)
-	0x4e, 0x2c, 0x2d, 0xc9, 0xd0, 0x2b, 0x28, 0xca, 0x2f, 0xc9, 0x17, 0x62, 0x2e, 0x48, 0x29, 0x55,
+	})
-	0x52, 0xe2, 0xe2, 0x71, 0x2f, 0x4a, 0x4d, 0x2d, 0x09, 0x4a, 0x2d, 0x2c, 0x4d, 0x2d, 0x2e, 0x11,
+	return file_grpcauth_proto_rawDescData
-	0x12, 0xe2, 0x62, 0xc9, 0x4b, 0xcc, 0x4d, 0x95, 0x60, 0x54, 0x60, 0xd4, 0xe0, 0x0c, 0x02, 0xb3,
-	0x95, 0x14, 0xb9, 0x78, 0xa1, 0x6a, 0x8a, 0x0b, 0xf2, 0xf3, 0x8a, 0x53, 0x85, 0x04, 0xb8, 0x98,
-	0x73, 0x8b, 0xd3, 0xa1, 0x6a, 0x40, 0x4c, 0x23, 0x6b, 0x2e, 0x76, 0xb0, 0x92, 0xd4, 0x22, 0x21,
-	0x03, 0x2e, 0x56, 0x30, 0x53, 0x48, 0x50, 0xaf, 0x20, 0xa5, 0x54, 0x0f, 0xd9, 0x74, 0x29, 0x21,
-	0x64, 0x21, 0x88, 0x61, 0x4a, 0x0c, 0x49, 0x6c, 0x60, 0xf7, 0x18, 0x03, 0x02, 0x00, 0x00, 0xff,
-	0xff, 0xa8, 0x53, 0x2f, 0x4c, 0xa1, 0x00, 0x00, 0x00,
 }
 
-// Reference imports to suppress errors if they are not otherwise used.
+var file_grpcauth_proto_msgTypes = make([]protoimpl.MessageInfo, 2)
-var _ context.Context
+var file_grpcauth_proto_goTypes = []interface{}{
-var _ grpc.ClientConn
+	(*GreetRequest)(nil),  // 0: pdu.GreetRequest
-
+	(*GreetResponse)(nil), // 1: pdu.GreetResponse
-// This is a compile-time assertion to ensure that this generated file
+}
-// is compatible with the grpc package it is being compiled against.
+var file_grpcauth_proto_depIdxs = []int32{
-const _ = grpc.SupportPackageIsVersion4
+	0, // 0: pdu.Greeter.Greet:input_type -> pdu.GreetRequest
-
+	1, // 1: pdu.Greeter.Greet:output_type -> pdu.GreetResponse
-// GreeterClient is the client API for Greeter service.
+	1, // [1:2] is the sub-list for method output_type
-//
+	0, // [0:1] is the sub-list for method input_type
-// For semantics around ctx use and closing/ending streaming RPCs, please refer to https://godoc.org/google.golang.org/grpc#ClientConn.NewStream.
+	0, // [0:0] is the sub-list for extension type_name
-type GreeterClient interface {
+	0, // [0:0] is the sub-list for extension extendee
-	Greet(ctx context.Context, in *GreetRequest, opts ...grpc.CallOption) (*GreetResponse, error)
+	0, // [0:0] is the sub-list for field type_name
 }
 
-type greeterClient struct {
+func init() { file_grpcauth_proto_init() }
-	cc *grpc.ClientConn
+func file_grpcauth_proto_init() {
-}
+	if File_grpcauth_proto != nil {
-
+		return
-func NewGreeterClient(cc *grpc.ClientConn) GreeterClient {
-	return &greeterClient{cc}
-}
-
-func (c *greeterClient) Greet(ctx context.Context, in *GreetRequest, opts ...grpc.CallOption) (*GreetResponse, error) {
-	out := new(GreetResponse)
-	err := c.cc.Invoke(ctx, "/pdu.Greeter/Greet", in, out, opts...)
-	if err != nil {
-		return nil, err
 	}
-	return out, nil
+	if !protoimpl.UnsafeEnabled {
-}
+		file_grpcauth_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
-
+			switch v := v.(*GreetRequest); i {
-// GreeterServer is the server API for Greeter service.
+			case 0:
-type GreeterServer interface {
+				return &v.state
-	Greet(context.Context, *GreetRequest) (*GreetResponse, error)
+			case 1:
-}
+				return &v.sizeCache
-
+			case 2:
-func RegisterGreeterServer(s *grpc.Server, srv GreeterServer) {
+				return &v.unknownFields
-	s.RegisterService(&_Greeter_serviceDesc, srv)
+			default:
-}
+				return nil
-
+			}
-func _Greeter_Greet_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+		}
-	in := new(GreetRequest)
+		file_grpcauth_proto_msgTypes[1].Exporter = func(v interface{}, i int) interface{} {
-	if err := dec(in); err != nil {
+			switch v := v.(*GreetResponse); i {
-		return nil, err
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
 	}
-	if interceptor == nil {
+	type x struct{}
-		return srv.(GreeterServer).Greet(ctx, in)
+	out := protoimpl.TypeBuilder{
-	}
+		File: protoimpl.DescBuilder{
-	info := &grpc.UnaryServerInfo{
+			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
-		Server:     srv,
+			RawDescriptor: file_grpcauth_proto_rawDesc,
-		FullMethod: "/pdu.Greeter/Greet",
+			NumEnums:      0,
-	}
+			NumMessages:   2,
-	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+			NumExtensions: 0,
-		return srv.(GreeterServer).Greet(ctx, req.(*GreetRequest))
+			NumServices:   1,
-	}
-	return interceptor(ctx, in, info, handler)
-}
-
-var _Greeter_serviceDesc = grpc.ServiceDesc{
-	ServiceName: "pdu.Greeter",
-	HandlerType: (*GreeterServer)(nil),
-	Methods: []grpc.MethodDesc{
-		{
-			MethodName: "Greet",
-			Handler:    _Greeter_Greet_Handler,
 		},
-	},
+		GoTypes:           file_grpcauth_proto_goTypes,
-	Streams:  []grpc.StreamDesc{},
+		DependencyIndexes: file_grpcauth_proto_depIdxs,
-	Metadata: "grpcauth.proto",
+		MessageInfos:      file_grpcauth_proto_msgTypes,
+	}.Build()
+	File_grpcauth_proto = out.File
+	file_grpcauth_proto_rawDesc = nil
+	file_grpcauth_proto_goTypes = nil
+	file_grpcauth_proto_depIdxs = nil
 }

rpc/grpcclientidentity/example/pdu/grpcauth_grpc.pb.go

@@ -0,0 +1,101 @@
+// Code generated by protoc-gen-go-grpc. DO NOT EDIT.
+
+package pdu
+
+import (
+	context "context"
+	grpc "google.golang.org/grpc"
+	codes "google.golang.org/grpc/codes"
+	status "google.golang.org/grpc/status"
+)
+
+// This is a compile-time assertion to ensure that this generated file
+// is compatible with the grpc package it is being compiled against.
+// Requires gRPC-Go v1.32.0 or later.
+const _ = grpc.SupportPackageIsVersion7
+
+// GreeterClient is the client API for Greeter service.
+//
+// For semantics around ctx use and closing/ending streaming RPCs, please refer to https://pkg.go.dev/google.golang.org/grpc/?tab=doc#ClientConn.NewStream.
+type GreeterClient interface {
+	Greet(ctx context.Context, in *GreetRequest, opts ...grpc.CallOption) (*GreetResponse, error)
+}
+
+type greeterClient struct {
+	cc grpc.ClientConnInterface
+}
+
+func NewGreeterClient(cc grpc.ClientConnInterface) GreeterClient {
+	return &greeterClient{cc}
+}
+
+func (c *greeterClient) Greet(ctx context.Context, in *GreetRequest, opts ...grpc.CallOption) (*GreetResponse, error) {
+	out := new(GreetResponse)
+	err := c.cc.Invoke(ctx, "/pdu.Greeter/Greet", in, out, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+// GreeterServer is the server API for Greeter service.
+// All implementations must embed UnimplementedGreeterServer
+// for forward compatibility
+type GreeterServer interface {
+	Greet(context.Context, *GreetRequest) (*GreetResponse, error)
+	mustEmbedUnimplementedGreeterServer()
+}
+
+// UnimplementedGreeterServer must be embedded to have forward compatible implementations.
+type UnimplementedGreeterServer struct {
+}
+
+func (UnimplementedGreeterServer) Greet(context.Context, *GreetRequest) (*GreetResponse, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method Greet not implemented")
+}
+func (UnimplementedGreeterServer) mustEmbedUnimplementedGreeterServer() {}
+
+// UnsafeGreeterServer may be embedded to opt out of forward compatibility for this service.
+// Use of this interface is not recommended, as added methods to GreeterServer will
+// result in compilation errors.
+type UnsafeGreeterServer interface {
+	mustEmbedUnimplementedGreeterServer()
+}
+
+func RegisterGreeterServer(s grpc.ServiceRegistrar, srv GreeterServer) {
+	s.RegisterService(&Greeter_ServiceDesc, srv)
+}
+
+func _Greeter_Greet_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(GreetRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(GreeterServer).Greet(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/pdu.Greeter/Greet",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(GreeterServer).Greet(ctx, req.(*GreetRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+// Greeter_ServiceDesc is the grpc.ServiceDesc for Greeter service.
+// It's only intended for direct use with grpc.RegisterService,
+// and not to be introspected or modified (even as a copy)
+var Greeter_ServiceDesc = grpc.ServiceDesc{
+	ServiceName: "pdu.Greeter",
+	HandlerType: (*GreeterServer)(nil),
+	Methods: []grpc.MethodDesc{
+		{
+			MethodName: "Greet",
+			Handler:    _Greeter_Greet_Handler,
+		},
+	},
+	Streams:  []grpc.StreamDesc{},
+	Metadata: "grpcauth.proto",
+}

rpc/grpcclientidentity/grpchelper/authlistener_grpc_adaptor_wrapper.go

@@ -34,8 +34,10 @@ func ClientConn(cn transport.Connecter, log Logger) *grpc.ClientConn {
 		Timeout:             KeepalivePeerTimeout,
 		PermitWithoutStream: true,
 	})
-	dialerOption := grpc.WithDialer(grpcclientidentity.NewDialer(log, cn))
+	dialerOption := grpc.WithContextDialer(grpcclientidentity.NewDialer(log, cn))
 	cred := grpc.WithTransportCredentials(grpcclientidentity.NewTransportCredentials(log))
+	// we use context.Background without a timeout here because we don't set grpc.WithBlock
+	// => docs:  "In the non-blocking case, the ctx does not act against the connection. It only controls the setup steps."
 	cc, err := grpc.DialContext(context.Background(), "doesn't matter done by dialer", dialerOption, cred, ka)
 	if err != nil {
 		log.WithError(err).Error("cannot create gRPC client conn (non-blocking)")

rpc/rpc_client.go

@@ -172,14 +172,14 @@ func (c *Client) WaitForConnectivity(ctx context.Context) error {
 	}
 	go func() {
 		defer wg.Done()
-		ctrl, ctrlErr := c.controlClient.Ping(ctx, &req, grpc.FailFast(false))
+		ctrl, ctrlErr := c.controlClient.Ping(ctx, &req, grpc.WaitForReady(true))
 		checkRes(ctrl, ctrlErr, loggers.Control, &ctrlOk)
 	}()
 	go func() {
 		defer wg.Done()
 		for ctx.Err() == nil {
 			data, dataErr := c.dataClient.ReqPing(ctx, &req)
-			// dataClient uses transport.Connecter, which doesn't expose FailFast(false)
+			// dataClient uses transport.Connecter, which doesn't expose WaitForReady(true)
 			// => we need to mask dial timeouts
 			if err, ok := dataErr.(interface{ Temporary() bool }); ok && err.Temporary() {
 				// Rate-limit pings here in case Temporary() is a mis-classification