[#XX] client: Patch

Signed-off-by: Airat Arifullin <a.arifullin@yadro.com>

.forgejo/workflows/dco.yml

@@ -13,9 +13,9 @@ jobs:
       - name: Setup Go
         uses: actions/setup-go@v3
         with:
-          go-version: '1.21'
+          go-version: '1.22'
 
       - name: Run commit format checker
-        uses: https://git.frostfs.info/TrueCloudLab/dco-go@v2
+        uses: https://git.frostfs.info/TrueCloudLab/dco-go@v3
         with:
           from: 'origin/${{ github.event.pull_request.base.ref }}'

.forgejo/workflows/tests.yml

@@ -8,17 +8,24 @@ jobs:
     steps:
       - uses: actions/checkout@v3
 
-      - name: golangci-lint
-        uses: https://github.com/golangci/golangci-lint-action@v2
+      - name: Set up Go
+        uses: actions/setup-go@v3
         with:
-          version: latest
+          go-version: '1.22'
+          cache: true
+
+      - name: Install linters
+        run: make lint-install
+
+      - name: Run linters
+        run: make lint
 
   tests:
     name: Tests
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        go_versions: [ '1.19', '1.20' ]
+        go_versions: [ '1.21', '1.22' ]
       fail-fast: false
     steps:
       - uses: actions/checkout@v3

.gitignore

@@ -27,3 +27,7 @@ antlr-*.jar
 
 # tempfiles
 .cache
+
+# binary
+bin/
+release/

.gitlint

@@ -1,10 +0,0 @@
-[general]
-fail-without-commits=true
-contrib=CC1
-
-[title-match-regex]
-regex=^\[\#[0-9Xx]+\]\s
-
-[ignore-by-title]
-regex=^Release(.*)
-ignore=title-match-regex

.pre-commit-config.yaml

@@ -18,13 +18,19 @@ repos:
     - id: end-of-file-fixer
       exclude: "(.key|.interp|.tokens)$"
 
-  - repo: https://github.com/golangci/golangci-lint
-    rev: v1.51.2
+  - repo: local
     hooks:
-    - id: golangci-lint
+       - id: go-unit-tests
+         name: go unit tests
+         entry: make test GOFLAGS=''
+         pass_filenames: false
+         types: [go]
+         language: system
 
-  - repo: https://github.com/jorisroovers/gitlint
-    rev:  v0.18.0
+  - repo: local
     hooks:
-      - id: gitlint
-        stages: [commit-msg]
+      - id: make-lint
+        name: Run Make Lint
+        entry: make lint
+        language: system
+        pass_filenames: false

Makefile

@@ -1,10 +1,16 @@
 #!/usr/bin/make -f
 
 ANTLR_VERSION="4.13.0"
+TMP_DIR := .cache
+LINT_VERSION ?= 1.56.2
+TRUECLOUDLAB_LINT_VERSION ?= 0.0.2
+OUTPUT_LINT_DIR ?= $(shell pwd)/bin
+LINT_DIR = $(OUTPUT_LINT_DIR)/golangci-lint-$(LINT_VERSION)-v$(TRUECLOUDLAB_LINT_VERSION)
 
 # Run tests
+test: GOFLAGS ?= "-cover -count=1"
 test:
-	@go test ./... -cover
+	@GOFLAGS=$(GOFLAGS) go test ./...
 
 # Pull go dependencies
 dep:
@@ -15,9 +21,23 @@ dep:
 	@CGO_ENABLED=0 \
 	go mod tidy -v && echo OK
 
+# Install linters
+lint-install:
+	@mkdir -p $(TMP_DIR)
+	@rm -rf $(TMP_DIR)/linters
+	@git -c advice.detachedHead=false clone --branch v$(TRUECLOUDLAB_LINT_VERSION) https://git.frostfs.info/TrueCloudLab/linters.git $(TMP_DIR)/linters
+	@@make -C $(TMP_DIR)/linters lib CGO_ENABLED=1 OUT_DIR=$(OUTPUT_LINT_DIR)
+	@rm -rf $(TMP_DIR)/linters
+	@rmdir $(TMP_DIR) 2>/dev/null || true
+	@CGO_ENABLED=1 GOBIN=$(LINT_DIR) go install github.com/golangci/golangci-lint/cmd/golangci-lint@v$(LINT_VERSION)
+
 # Run linters
 lint:
-	@golangci-lint --timeout=5m run
+	@if [ ! -d "$(LINT_DIR)" ]; then \
+		echo "Run make lint-install"; \
+		exit 1; \
+	fi
+	$(LINT_DIR)/golangci-lint run
 
 # Run tests with race detection and produce coverage output
 cover:

README.md

@@ -42,7 +42,6 @@ Contains client for working with FrostFS.
 ```go
 var prmInit client.PrmInit
 prmInit.SetDefaultPrivateKey(key) // private key for request signing
-prmInit.ResolveFrostFSFailures() // enable erroneous status parsing
 
 var c client.Client
 c.Init(prmInit)
@@ -77,8 +76,7 @@ if needed and perform any desired action. In the case above we may want to repor
 these details to the user as well as retry an operation, possibly with different parameters.
 Status wire-format is extendable and each node can report any set of details it wants.
 The set of reserved status codes can be found in
-[FrostFS API](https://git.frostfs.info/TrueCloudLab/frostfs-api/src/branch/master/status/types.proto). There is also
-a `client.PrmInit.ResolveFrostFSFailures()` to seamlessly convert erroneous statuses into Go error type.
+[FrostFS API](https://git.frostfs.info/TrueCloudLab/frostfs-api/src/branch/master/status/types.proto).
 
 ### policy
 Contains helpers allowing conversion of placing policy from/to JSON representation

ape/chain.go

@@ -0,0 +1,52 @@
+package ape
+
+import (
+	"errors"
+	"fmt"
+
+	apeV2 "git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/ape"
+)
+
+var (
+	ErrInvalidChainRepresentation = errors.New("invalid chain representation")
+)
+
+// ChainID is Chain's identifier.
+type ChainID []byte
+
+// Chain is an SDK representation for v2's Chain.
+//
+// Note that Chain (as well as v2's Chain) and all related entities
+// are NOT operated by Access-Policy-Engine (APE). The client is responsible
+// to convert these types to policy-engine entities.
+type Chain struct {
+	// Raw is the encoded chain kind.
+	// It assumes that Raw's bytes are the result of encoding provided by
+	// policy-engine package.
+	Raw []byte
+}
+
+// ToV2 converts Chain to v2.
+func (c *Chain) ToV2() *apeV2.Chain {
+	v2ct := new(apeV2.Chain)
+
+	if c.Raw != nil {
+		v2Raw := new(apeV2.ChainRaw)
+		v2Raw.SetRaw(c.Raw)
+		v2ct.SetKind(v2Raw)
+	}
+
+	return v2ct
+}
+
+// ReadFromV2 fills Chain from v2.
+func (c *Chain) ReadFromV2(v2ct *apeV2.Chain) error {
+	switch v := v2ct.GetKind().(type) {
+	default:
+		return fmt.Errorf("unsupported chain kind: %T", v)
+	case *apeV2.ChainRaw:
+		raw := v.GetRaw()
+		c.Raw = raw
+	}
+	return nil
+}

ape/chain_target.go

@@ -0,0 +1,53 @@
+package ape
+
+import (
+	apeV2 "git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/ape"
+)
+
+// TargetType is an SDK representation for v2's TargetType.
+type TargetType apeV2.TargetType
+
+const (
+	TargetTypeUndefined TargetType = iota
+	TargetTypeNamespace
+	TargetTypeContainer
+	TargetTypeUser
+	TargetTypeGroup
+)
+
+// ToV2 converts TargetType to v2.
+func (targetType TargetType) ToV2() apeV2.TargetType {
+	return apeV2.TargetType(targetType)
+}
+
+// FromV2 reads TargetType to v2.
+func (targetType *TargetType) FromV2(v2targetType apeV2.TargetType) {
+	*targetType = TargetType(v2targetType)
+}
+
+// ChainTarget is an SDK representation for v2's ChainTarget.
+//
+// Note that ChainTarget (as well as v2's ChainTarget) and all related entities
+// are NOT operated by Access-Policy-Engine (APE). The client is responsible
+// to convert these types to policy-engine entities.
+type ChainTarget struct {
+	TargetType TargetType
+
+	Name string
+}
+
+// ToV2 converts ChainTarget to v2.
+func (ct *ChainTarget) ToV2() *apeV2.ChainTarget {
+	v2ct := new(apeV2.ChainTarget)
+
+	v2ct.SetTargetType(ct.TargetType.ToV2())
+	v2ct.SetName(ct.Name)
+
+	return v2ct
+}
+
+// FromV2 reads ChainTarget frpm v2.
+func (ct *ChainTarget) FromV2(v2ct *apeV2.ChainTarget) {
+	ct.TargetType.FromV2(v2ct.GetTargetType())
+	ct.Name = v2ct.GetName()
+}

ape/chain_target_test.go

@@ -0,0 +1,65 @@
+package ape_test
+
+import (
+	"testing"
+
+	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/ape"
+	"github.com/stretchr/testify/require"
+
+	apeV2 "git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/ape"
+)
+
+var (
+	m = map[ape.TargetType]apeV2.TargetType{
+		ape.TargetTypeUndefined: apeV2.TargetTypeUndefined,
+		ape.TargetTypeNamespace: apeV2.TargetTypeNamespace,
+		ape.TargetTypeContainer: apeV2.TargetTypeContainer,
+		ape.TargetTypeUser:      apeV2.TargetTypeUser,
+		ape.TargetTypeGroup:     apeV2.TargetTypeGroup,
+	}
+)
+
+func TestTargetType(t *testing.T) {
+	for typesdk, typev2 := range m {
+		t.Run("from sdk to v2 "+typev2.String(), func(t *testing.T) {
+			v2 := typesdk.ToV2()
+			require.Equal(t, v2, typev2)
+		})
+
+		t.Run("from v2 to sdk "+typev2.String(), func(t *testing.T) {
+			var typ ape.TargetType
+			typ.FromV2(typev2)
+			require.Equal(t, typesdk, typ)
+		})
+	}
+}
+
+func TestChainTarget(t *testing.T) {
+	var (
+		typ  = ape.TargetTypeNamespace
+		name = "namespaceXXYYZZ"
+	)
+
+	t.Run("from sdk to v2", func(t *testing.T) {
+		ct := ape.ChainTarget{
+			TargetType: typ,
+			Name:       name,
+		}
+
+		v2 := ct.ToV2()
+		require.Equal(t, m[typ], v2.GetTargetType())
+		require.Equal(t, name, v2.GetName())
+	})
+
+	t.Run("from v2 to sdk", func(t *testing.T) {
+		v2 := &apeV2.ChainTarget{}
+		v2.SetTargetType(m[typ])
+		v2.SetName(name)
+
+		var ct ape.ChainTarget
+		ct.FromV2(v2)
+
+		require.Equal(t, typ, ct.TargetType)
+		require.Equal(t, name, ct.Name)
+	})
+}

ape/chain_test.go

@@ -0,0 +1,43 @@
+package ape_test
+
+import (
+	"testing"
+
+	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/ape"
+	"github.com/stretchr/testify/require"
+
+	apeV2 "git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/ape"
+)
+
+const (
+	encoded = `{"ID":"","Rules":[{"Status":"Allow","Actions":{"Inverted":false,"Names":["GetObject"]},"Resources":{"Inverted":false,"Names":["native:object/*"]},"Any":false,"Condition":[{"Op":"StringEquals","Object":"Resource","Key":"Department","Value":"HR"}]}],"MatchType":"DenyPriority"}`
+)
+
+func TestChainData(t *testing.T) {
+	t.Run("raw chain", func(t *testing.T) {
+		var c ape.Chain
+
+		b := []byte(encoded)
+		c.Raw = b
+
+		v2, ok := c.ToV2().GetKind().(*apeV2.ChainRaw)
+		require.True(t, ok)
+		require.Equal(t, b, v2.Raw)
+	})
+}
+
+func TestChainMessageV2(t *testing.T) {
+	b := []byte(encoded)
+
+	v2Raw := &apeV2.ChainRaw{}
+	v2Raw.SetRaw(b)
+
+	v2 := &apeV2.Chain{}
+	v2.SetKind(v2Raw)
+
+	var c ape.Chain
+	c.ReadFromV2(v2)
+
+	require.NotNil(t, c.Raw)
+	require.Equal(t, b, c.Raw)
+}

bearer/bearer.go

@@ -6,7 +6,9 @@ import (
 	"fmt"
 
 	"git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/acl"
+	apeV2 "git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/ape"
 	"git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/refs"
+	apeSDK "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/ape"
 	cid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/container/id"
 	frostfscrypto "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/crypto"
 	frostfsecdsa "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/crypto/ecdsa"
@@ -33,9 +35,85 @@ type Token struct {
 	sigSet bool
 	sig    refs.Signature
 
+	apeOverrideSet bool
+	apeOverride    APEOverride
+
 	impersonate bool
 }
 
+// APEOverride is the list of APE chains defined for a target.
+// These chains are meant to serve as overrides to the already defined (or even undefined)
+// APE chains for the target (see contract `Policy`).
+//
+// The server-side processing of the bearer token with set APE overrides must verify if a client is permitted
+// to override chains for the target, preventing unauthorized access through the APE mechanism.
+type APEOverride struct {
+	// Target for which chains are applied.
+	Target apeSDK.ChainTarget
+
+	// The list of APE chains.
+	Chains []apeSDK.Chain
+}
+
+// Marshal marshals APEOverride into a protobuf binary form.
+func (c *APEOverride) Marshal() ([]byte, error) {
+	return c.ToV2().StableMarshal(nil), nil
+}
+
+// Unmarshal unmarshals protobuf binary representation of APEOverride.
+func (c *APEOverride) Unmarshal(data []byte) error {
+	overrideV2 := new(acl.APEOverride)
+	if err := overrideV2.Unmarshal(data); err != nil {
+		return err
+	}
+
+	return c.FromV2(overrideV2)
+}
+
+// MarshalJSON encodes APEOverride to protobuf JSON format.
+func (c *APEOverride) MarshalJSON() ([]byte, error) {
+	return c.ToV2().MarshalJSON()
+}
+
+// UnmarshalJSON decodes APEOverride from protobuf JSON format.
+func (c *APEOverride) UnmarshalJSON(data []byte) error {
+	overrideV2 := new(acl.APEOverride)
+	if err := overrideV2.UnmarshalJSON(data); err != nil {
+		return err
+	}
+
+	return c.FromV2(overrideV2)
+}
+
+func (c *APEOverride) FromV2(tokenAPEChains *acl.APEOverride) error {
+	c.Target.FromV2(tokenAPEChains.GetTarget())
+	if chains := tokenAPEChains.GetChains(); len(chains) > 0 {
+		c.Chains = make([]apeSDK.Chain, len(chains))
+		for i := range chains {
+			if err := c.Chains[i].ReadFromV2(chains[i]); err != nil {
+				return fmt.Errorf("invalid APE chain: %w", err)
+			}
+		}
+	}
+	return nil
+}
+
+func (c *APEOverride) ToV2() *acl.APEOverride {
+	if c == nil {
+		return nil
+	}
+
+	apeOverride := new(acl.APEOverride)
+	apeOverride.SetTarget(c.Target.ToV2())
+	chains := make([]*apeV2.Chain, len(c.Chains))
+	for i := range c.Chains {
+		chains[i] = c.Chains[i].ToV2()
+	}
+	apeOverride.SetChains(chains)
+
+	return apeOverride
+}
+
 // reads Token from the acl.BearerToken message. If checkFieldPresence is set,
 // returns an error on absence of any protocol-required field.
 func (b *Token) readFromV2(m acl.BearerToken, checkFieldPresence bool) error {
@@ -48,10 +126,11 @@ func (b *Token) readFromV2(m acl.BearerToken, checkFieldPresence bool) error {
 
 	b.impersonate = body.GetImpersonate()
 
+	apeOverrides := body.GetAPEOverride()
 	eaclTable := body.GetEACL()
 	if b.eaclTableSet = eaclTable != nil; b.eaclTableSet {
 		b.eaclTable = *eacl.NewTableFromV2(eaclTable)
-	} else if checkFieldPresence && !b.impersonate {
+	} else if checkFieldPresence && !b.impersonate && apeOverrides == nil {
 		return errors.New("missing eACL table")
 	}
 
@@ -72,6 +151,14 @@ func (b *Token) readFromV2(m acl.BearerToken, checkFieldPresence bool) error {
 		return errors.New("missing token lifetime")
 	}
 
+	if b.apeOverrideSet = apeOverrides != nil; b.apeOverrideSet {
+		if err = b.apeOverride.FromV2(apeOverrides); err != nil {
+			return err
+		}
+	} else if checkFieldPresence && !b.impersonate && !b.eaclTableSet {
+		return errors.New("missing APE override")
+	}
+
 	sig := m.GetSignature()
 	if b.sigSet = sig != nil; sig != nil {
 		b.sig = *sig
@@ -90,7 +177,7 @@ func (b *Token) ReadFromV2(m acl.BearerToken) error {
 }
 
 func (b Token) fillBody() *acl.BearerTokenBody {
-	if !b.eaclTableSet && !b.targetUserSet && !b.lifetimeSet && !b.impersonate {
+	if !b.eaclTableSet && !b.targetUserSet && !b.lifetimeSet && !b.impersonate && !b.apeOverrideSet {
 		return nil
 	}
 
@@ -116,6 +203,10 @@ func (b Token) fillBody() *acl.BearerTokenBody {
 		body.SetLifetime(&lifetime)
 	}
 
+	if b.apeOverrideSet {
+		body.SetAPEOverride(b.apeOverride.ToV2())
+	}
+
 	body.SetImpersonate(b.impersonate)
 
 	return &body
@@ -214,6 +305,25 @@ func (b Token) EACLTable() eacl.Table {
 	return eacl.Table{}
 }
 
+// SetAPEOverride sets APE override to the bearer token.
+//
+// See also: APEOverride.
+func (b *Token) SetAPEOverride(v APEOverride) {
+	b.apeOverride = v
+	b.apeOverrideSet = true
+}
+
+// APEOverride returns APE override set by SetAPEOverride.
+//
+// Zero Token has zero APEOverride.
+func (b *Token) APEOverride() APEOverride {
+	if b.apeOverrideSet {
+		return b.apeOverride
+	}
+
+	return APEOverride{}
+}
+
 // SetImpersonate mark token as impersonate to consider token signer as request owner.
 // If this field is true extended EACLTable in token body isn't processed.
 func (b *Token) SetImpersonate(v bool) {

bearer/bearer_test.go

@@ -3,6 +3,7 @@ package bearer_test
 import (
 	"bytes"
 	"math/rand"
+	"reflect"
 	"testing"
 
 	"git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/acl"
@@ -81,6 +82,58 @@ func TestToken_SetEACLTable(t *testing.T) {
 	require.True(t, isEqualEACLTables(eaclTable, val.EACLTable()))
 }
 
+func TestToken_SetAPEOverrides(t *testing.T) {
+	var val bearer.Token
+	var m acl.BearerToken
+	filled := bearertest.Token()
+
+	val.WriteToV2(&m)
+	require.Zero(t, m.GetBody())
+
+	val2 := filled
+
+	require.NoError(t, val2.Unmarshal(val.Marshal()))
+	require.Zero(t, val2.APEOverride())
+
+	val2 = filled
+
+	jd, err := val.MarshalJSON()
+	require.NoError(t, err)
+
+	require.NoError(t, val2.UnmarshalJSON(jd))
+	require.Zero(t, val2.APEOverride())
+
+	// set value
+
+	tApe := bearertest.APEOverride()
+
+	val.SetAPEOverride(tApe)
+	require.Equal(t, tApe, val.APEOverride())
+
+	val.WriteToV2(&m)
+	require.NotNil(t, m.GetBody().GetAPEOverride())
+	require.True(t, tokenAPEOverridesEqual(tApe.ToV2(), m.GetBody().GetAPEOverride()))
+
+	val2 = filled
+
+	require.NoError(t, val2.Unmarshal(val.Marshal()))
+	apeOverride := val2.APEOverride()
+	require.True(t, tokenAPEOverridesEqual(tApe.ToV2(), apeOverride.ToV2()))
+
+	val2 = filled
+
+	jd, err = val.MarshalJSON()
+	require.NoError(t, err)
+
+	require.NoError(t, val2.UnmarshalJSON(jd))
+	apeOverride = val.APEOverride()
+	require.True(t, tokenAPEOverridesEqual(tApe.ToV2(), apeOverride.ToV2()))
+}
+
+func tokenAPEOverridesEqual(lhs, rhs *acl.APEOverride) bool {
+	return reflect.DeepEqual(lhs, rhs)
+}
+
 func TestToken_ForUser(t *testing.T) {
 	var val bearer.Token
 	var m acl.BearerToken
@@ -107,7 +160,7 @@ func TestToken_ForUser(t *testing.T) {
 	require.Zero(t, m.GetBody())
 
 	// set value
-	usr := *usertest.ID()
+	usr := usertest.ID()
 
 	var usrV2 refs.OwnerID
 	usr.WriteToV2(&usrV2)
@@ -243,11 +296,11 @@ func TestToken_AssertContainer(t *testing.T) {
 
 func TestToken_AssertUser(t *testing.T) {
 	var val bearer.Token
-	usr := *usertest.ID()
+	usr := usertest.ID()
 
 	require.True(t, val.AssertUser(usr))
 
-	val.ForUser(*usertest.ID())
+	val.ForUser(usertest.ID())
 	require.False(t, val.AssertUser(usr))
 
 	val.ForUser(usr)
@@ -332,7 +385,7 @@ func TestToken_ReadFromV2(t *testing.T) {
 	val.WriteToV2(&m2)
 	require.Equal(t, m, m2)
 
-	usr, usr2 := *usertest.ID(), *usertest.ID()
+	usr, usr2 := usertest.ID(), usertest.ID()
 
 	require.True(t, val.AssertUser(usr))
 	require.True(t, val.AssertUser(usr2))

bearer/test/generate.go

@@ -1,6 +1,7 @@
 package bearertest
 
 import (
+	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/ape"
 	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/bearer"
 	eacltest "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/eacl/test"
 	usertest "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/user/test"
@@ -13,8 +14,19 @@ func Token() (t bearer.Token) {
 	t.SetExp(3)
 	t.SetNbf(2)
 	t.SetIat(1)
-	t.ForUser(*usertest.ID())
+	t.ForUser(usertest.ID())
 	t.SetEACLTable(*eacltest.Table())
+	t.SetAPEOverride(APEOverride())
 
 	return t
 }
+
+func APEOverride() bearer.APEOverride {
+	return bearer.APEOverride{
+		Target: ape.ChainTarget{
+			TargetType: ape.TargetTypeContainer,
+			Name:       "F8JsMnChywiPvbDvpxMbjTjx5KhWHHp6gCDt8BhzL9kF",
+		},
+		Chains: []ape.Chain{{Raw: []byte("{}")}},
+	}
+}

client/accounting.go

@@ -17,26 +17,26 @@ import (
 
 // PrmBalanceGet groups parameters of BalanceGet operation.
 type PrmBalanceGet struct {
-	prmCommonMeta
+	XHeaders []string
 
-	accountSet bool
-	account    user.ID
+	Account user.ID
 }
 
 // SetAccount sets identifier of the FrostFS account for which the balance is requested.
 // Required parameter.
+//
+// Deprecated: Use PrmBalanceGet.Account instead.
 func (x *PrmBalanceGet) SetAccount(id user.ID) {
-	x.account = id
-	x.accountSet = true
+	x.Account = id
 }
 
 func (x *PrmBalanceGet) buildRequest(c *Client) (*v2accounting.BalanceRequest, error) {
-	if !x.accountSet {
+	if x.Account.IsEmpty() {
 		return nil, errorAccountNotSet
 	}
 
 	var accountV2 refs.OwnerID
-	x.account.WriteToV2(&accountV2)
+	x.Account.WriteToV2(&accountV2)
 
 	var body v2accounting.BalanceRequestBody
 	body.SetOwnerID(&accountV2)
@@ -64,9 +64,9 @@ func (x ResBalanceGet) Amount() accounting.Decimal {
 //
 // Exactly one return value is non-nil. By default, server status is returned in res structure.
 // Any client's internal or transport errors are returned as `error`,
-// If PrmInit.ResolveFrostFSFailures has been called, unsuccessful
-// FrostFS status codes are returned as `error`, otherwise, are included
-// in the returned result structure.
+// If PrmInit.DisableFrostFSFailuresResolution has been called, unsuccessful
+// FrostFS status codes are included in the returned result structure,
+// otherwise, are also returned as `error`.
 //
 // Returns an error if parameters are set incorrectly (see PrmBalanceGet docs).
 // Context is required and must not be nil. It is used for network communication.
@@ -79,7 +79,7 @@ func (c *Client) BalanceGet(ctx context.Context, prm PrmBalanceGet) (*ResBalance
 		return nil, err
 	}
 
-	if err := signature.SignServiceMessage(&c.prm.key, req); err != nil {
+	if err := signature.SignServiceMessage(&c.prm.Key, req); err != nil {
 		return nil, fmt.Errorf("sign request: %w", err)
 	}
 

client/apemanager_add_chain.go

@@ -0,0 +1,79 @@
+package client
+
+import (
+	"context"
+	"fmt"
+
+	apemanagerV2 "git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/apemanager"
+	rpcapi "git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/rpc"
+	"git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/rpc/client"
+	sessionV2 "git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/session"
+	"git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/signature"
+	apeSDK "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/ape"
+	apistatus "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/client/status"
+)
+
+// PrmAPEManagerAddChain groups parameters of APEManagerAddChain operation.
+type PrmAPEManagerAddChain struct {
+	XHeaders []string
+
+	ChainTarget apeSDK.ChainTarget
+
+	Chain apeSDK.Chain
+}
+
+func (prm *PrmAPEManagerAddChain) buildRequest(c *Client) (*apemanagerV2.AddChainRequest, error) {
+	if len(prm.XHeaders)%2 != 0 {
+		return nil, errorInvalidXHeaders
+	}
+
+	req := new(apemanagerV2.AddChainRequest)
+	reqBody := new(apemanagerV2.AddChainRequestBody)
+
+	reqBody.SetTarget(prm.ChainTarget.ToV2())
+	reqBody.SetChain(prm.Chain.ToV2())
+
+	req.SetBody(reqBody)
+
+	var meta sessionV2.RequestMetaHeader
+	writeXHeadersToMeta(prm.XHeaders, &meta)
+
+	c.prepareRequest(req, &meta)
+
+	return req, nil
+}
+
+type ResAPEManagerAddChain struct {
+	statusRes
+
+	// ChainID of set Chain. If Chain does not contain chainID before request, then
+	// ChainID is generated.
+	ChainID apeSDK.ChainID
+}
+
+// APEManagerAddChain sets Chain for ChainTarget.
+func (c *Client) APEManagerAddChain(ctx context.Context, prm PrmAPEManagerAddChain) (*ResAPEManagerAddChain, error) {
+	req, err := prm.buildRequest(c)
+	if err != nil {
+		return nil, err
+	}
+
+	if err := signature.SignServiceMessage(&c.prm.Key, req); err != nil {
+		return nil, fmt.Errorf("sign request: %w", err)
+	}
+
+	resp, err := rpcapi.AddChain(&c.c, req, client.WithContext(ctx))
+	if err != nil {
+		return nil, err
+	}
+
+	var res ResAPEManagerAddChain
+	res.st, err = c.processResponse(resp)
+	if err != nil || !apistatus.IsSuccessful(res.st) {
+		return &res, err
+	}
+
+	res.ChainID = resp.GetBody().GetChainID()
+
+	return &res, nil
+}

client/apemanager_list_chains.go

@@ -0,0 +1,80 @@
+package client
+
+import (
+	"context"
+	"fmt"
+
+	apemanagerV2 "git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/apemanager"
+	rpcapi "git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/rpc"
+	"git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/rpc/client"
+	sessionV2 "git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/session"
+	"git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/signature"
+	apeSDK "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/ape"
+	apistatus "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/client/status"
+)
+
+// PrmAPEManagerListChains groups parameters of APEManagerListChains operation.
+type PrmAPEManagerListChains struct {
+	XHeaders []string
+
+	ChainTarget apeSDK.ChainTarget
+}
+
+func (prm *PrmAPEManagerListChains) buildRequest(c *Client) (*apemanagerV2.ListChainsRequest, error) {
+	if len(prm.XHeaders)%2 != 0 {
+		return nil, errorInvalidXHeaders
+	}
+
+	req := new(apemanagerV2.ListChainsRequest)
+	reqBody := new(apemanagerV2.ListChainsRequestBody)
+
+	reqBody.SetTarget(prm.ChainTarget.ToV2())
+
+	req.SetBody(reqBody)
+
+	var meta sessionV2.RequestMetaHeader
+	writeXHeadersToMeta(prm.XHeaders, &meta)
+
+	c.prepareRequest(req, &meta)
+
+	return req, nil
+}
+
+type ResAPEManagerListChains struct {
+	statusRes
+
+	Chains []apeSDK.Chain
+}
+
+// APEManagerListChains lists Chains for ChainTarget.
+func (c *Client) APEManagerListChains(ctx context.Context, prm PrmAPEManagerListChains) (*ResAPEManagerListChains, error) {
+	req, err := prm.buildRequest(c)
+	if err != nil {
+		return nil, err
+	}
+
+	if err := signature.SignServiceMessage(&c.prm.Key, req); err != nil {
+		return nil, fmt.Errorf("sign request: %w", err)
+	}
+
+	resp, err := rpcapi.ListChains(&c.c, req, client.WithContext(ctx))
+	if err != nil {
+		return nil, err
+	}
+
+	var res ResAPEManagerListChains
+	res.st, err = c.processResponse(resp)
+	if err != nil || !apistatus.IsSuccessful(res.st) {
+		return nil, err
+	}
+
+	for _, ch := range resp.GetBody().GetChains() {
+		var chSDK apeSDK.Chain
+		if err := chSDK.ReadFromV2(ch); err != nil {
+			return nil, err
+		}
+		res.Chains = append(res.Chains, chSDK)
+	}
+
+	return &res, nil
+}

client/apemanager_remove_chain.go

@@ -0,0 +1,73 @@
+package client
+
+import (
+	"context"
+	"fmt"
+
+	apemanagerV2 "git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/apemanager"
+	rpcapi "git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/rpc"
+	"git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/rpc/client"
+	sessionV2 "git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/session"
+	"git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/signature"
+	apeSDK "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/ape"
+	apistatus "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/client/status"
+)
+
+// PrmAPEManagerRemoveChain groups parameters of APEManagerRemoveChain operation.
+type PrmAPEManagerRemoveChain struct {
+	XHeaders []string
+
+	ChainTarget apeSDK.ChainTarget
+
+	ChainID apeSDK.ChainID
+}
+
+func (prm *PrmAPEManagerRemoveChain) buildRequest(c *Client) (*apemanagerV2.RemoveChainRequest, error) {
+	if len(prm.XHeaders)%2 != 0 {
+		return nil, errorInvalidXHeaders
+	}
+
+	req := new(apemanagerV2.RemoveChainRequest)
+	reqBody := new(apemanagerV2.RemoveChainRequestBody)
+
+	reqBody.SetTarget(prm.ChainTarget.ToV2())
+	reqBody.SetChainID(prm.ChainID)
+
+	req.SetBody(reqBody)
+
+	var meta sessionV2.RequestMetaHeader
+	writeXHeadersToMeta(prm.XHeaders, &meta)
+
+	c.prepareRequest(req, &meta)
+
+	return req, nil
+}
+
+type ResAPEManagerRemoveChain struct {
+	statusRes
+}
+
+// APEManagerRemoveChain removes Chain with ChainID defined for ChainTarget.
+func (c *Client) APEManagerRemoveChain(ctx context.Context, prm PrmAPEManagerRemoveChain) (*ResAPEManagerRemoveChain, error) {
+	req, err := prm.buildRequest(c)
+	if err != nil {
+		return nil, err
+	}
+
+	if err := signature.SignServiceMessage(&c.prm.Key, req); err != nil {
+		return nil, fmt.Errorf("sign request: %w", err)
+	}
+
+	resp, err := rpcapi.RemoveChain(&c.c, req, client.WithContext(ctx))
+	if err != nil {
+		return nil, err
+	}
+
+	var res ResAPEManagerRemoveChain
+	res.st, err = c.processResponse(resp)
+	if err != nil || !apistatus.IsSuccessful(res.st) {
+		return &res, err
+	}
+
+	return &res, nil
+}

client/client.go

@@ -78,31 +78,22 @@ func (c *Client) Init(prm PrmInit) {
 //
 // See also Init / Close.
 func (c *Client) Dial(ctx context.Context, prm PrmDial) error {
-	if prm.endpoint == "" {
+	if prm.Endpoint == "" {
 		return errorServerAddrUnset
 	}
 
-	if prm.timeoutDialSet {
-		if prm.timeoutDial <= 0 {
-			return errorNonPositiveTimeout
-		}
-	} else {
-		prm.timeoutDial = 5 * time.Second
+	if prm.DialTimeout <= 0 {
+		prm.DialTimeout = defaultDialTimeout
 	}
-
-	if prm.streamTimeoutSet {
-		if prm.streamTimeout <= 0 {
-			return errorNonPositiveTimeout
-		}
-	} else {
-		prm.streamTimeout = 10 * time.Second
+	if prm.StreamTimeout <= 0 {
+		prm.StreamTimeout = defaultStreamTimeout
 	}
 
 	c.c = *client.New(append(
-		client.WithNetworkURIAddress(prm.endpoint, prm.tlsConfig),
-		client.WithDialTimeout(prm.timeoutDial),
-		client.WithRWTimeout(prm.streamTimeout),
-		client.WithGRPCDialOptions(prm.dialOptions),
+		client.WithNetworkURIAddress(prm.Endpoint, prm.TLSConfig),
+		client.WithDialTimeout(prm.DialTimeout),
+		client.WithRWTimeout(prm.StreamTimeout),
+		client.WithGRPCDialOptions(prm.GRPCDialOptions),
 	)...)
 
 	c.setFrostFSAPIServer((*coreServer)(&c.c))
@@ -144,52 +135,67 @@ func (c *Client) Close() error {
 //
 // See also Init.
 type PrmInit struct {
-	resolveFrostFSErrors bool
+	DisableFrostFSErrorResolution bool
 
-	key ecdsa.PrivateKey
+	Key ecdsa.PrivateKey
 
-	cbRespInfo func(ResponseMetaInfo) error
+	ResponseInfoCallback func(ResponseMetaInfo) error
 
-	netMagic uint64
+	NetMagic uint64
 }
 
 // SetDefaultPrivateKey sets Client private key to be used for the protocol
 // communication by default.
 //
 // Required for operations without custom key parametrization (see corresponding Prm* docs).
+//
+// Deprecated: Use PrmInit.Key instead.
 func (x *PrmInit) SetDefaultPrivateKey(key ecdsa.PrivateKey) {
-	x.key = key
+	x.Key = key
 }
 
-// ResolveFrostFSFailures makes the Client to resolve failure statuses of the
-// FrostFS protocol into Go built-in errors. These errors are returned from
-// each protocol operation. By default, statuses aren't resolved and written
-// to the resulting structure (see corresponding Res* docs).
+// Deprecated: method is no-op. Option is default.
 func (x *PrmInit) ResolveFrostFSFailures() {
-	x.resolveFrostFSErrors = true
+}
+
+// DisableFrostFSFailuresResolution makes the Client to preserve failure statuses of the
+// FrostFS protocol only in resulting structure (see corresponding Res* docs).
+// These errors are returned from each protocol operation. By default, statuses
+// are resolved and returned as a Go built-in errors.
+//
+// Deprecated: Use PrmInit.DisableFrostFSErrorResolution instead.
+func (x *PrmInit) DisableFrostFSFailuresResolution() {
+	x.DisableFrostFSErrorResolution = true
 }
 
 // SetResponseInfoCallback makes the Client to pass ResponseMetaInfo from each
 // FrostFS server response to f. Nil (default) means ignore response meta info.
+//
+// Deprecated: Use PrmInit.ResponseInfoCallback instead.
 func (x *PrmInit) SetResponseInfoCallback(f func(ResponseMetaInfo) error) {
-	x.cbRespInfo = f
+	x.ResponseInfoCallback = f
 }
 
+const (
+	defaultDialTimeout   = 5 * time.Second
+	defaultStreamTimeout = 10 * time.Second
+)
+
 // PrmDial groups connection parameters for the Client.
 //
 // See also Dial.
 type PrmDial struct {
-	endpoint string
+	Endpoint string
 
-	tlsConfig *tls.Config
+	TLSConfig *tls.Config
 
-	timeoutDialSet bool
-	timeoutDial    time.Duration
+	// If DialTimeout is non-positive, then it's set to defaultDialTimeout.
+	DialTimeout time.Duration
 
-	streamTimeoutSet bool
-	streamTimeout    time.Duration
+	// If StreamTimeout is non-positive, then it's set to defaultStreamTimeout.
+	StreamTimeout time.Duration
 
-	dialOptions []grpc.DialOption
+	GRPCDialOptions []grpc.DialOption
 }
 
 // SetServerURI sets server URI in the FrostFS network.
@@ -205,33 +211,41 @@ type PrmDial struct {
 //	grpcs
 //
 // See also SetTLSConfig.
+//
+// Deprecated: Use PrmDial.Endpoint instead.
 func (x *PrmDial) SetServerURI(endpoint string) {
-	x.endpoint = endpoint
+	x.Endpoint = endpoint
 }
 
 // SetTLSConfig sets tls.Config to open TLS client connection
 // to the FrostFS server. Nil (default) means insecure connection.
 //
 // See also SetServerURI.
+//
+// Depreacted: Use PrmDial.TLSConfig instead.
 func (x *PrmDial) SetTLSConfig(tlsConfig *tls.Config) {
-	x.tlsConfig = tlsConfig
+	x.TLSConfig = tlsConfig
 }
 
 // SetTimeout sets the timeout for connection to be established.
 // MUST BE positive. If not called, 5s timeout will be used by default.
+//
+// Deprecated: Use PrmDial.DialTimeout instead.
 func (x *PrmDial) SetTimeout(timeout time.Duration) {
-	x.timeoutDialSet = true
-	x.timeoutDial = timeout
+	x.DialTimeout = timeout
 }
 
 // SetStreamTimeout sets the timeout for individual operations in streaming RPC.
 // MUST BE positive. If not called, 10s timeout will be used by default.
+//
+// Deprecated: Use PrmDial.StreamTimeout instead.
 func (x *PrmDial) SetStreamTimeout(timeout time.Duration) {
-	x.streamTimeoutSet = true
-	x.streamTimeout = timeout
+	x.StreamTimeout = timeout
 }
 
 // SetGRPCDialOptions sets the gRPC dial options for new gRPC client connection.
+//
+// Deprecated: Use PrmDial.GRPCDialOptions instead.
 func (x *PrmDial) SetGRPCDialOptions(opts ...grpc.DialOption) {
-	x.dialOptions = opts
+	x.GRPCDialOptions = opts
 }

client/client_test.go

@@ -29,8 +29,9 @@ func assertStatusErr(tb testing.TB, res interface{ Status() apistatus.Status })
 }
 
 func newClient(server frostFSAPIServer) *Client {
-	var prm PrmInit
-	prm.SetDefaultPrivateKey(*key)
+	prm := PrmInit{
+		Key: *key,
+	}
 
 	var c Client
 	c.Init(prm)
@@ -43,8 +44,9 @@ func TestClient_DialContext(t *testing.T) {
 	var c Client
 
 	// try to connect to any host
-	var prm PrmDial
-	prm.SetServerURI("localhost:8080")
+	prm := PrmDial{
+		Endpoint: "localhost:8080",
+	}
 
 	assert := func(ctx context.Context, errExpected error) {
 		// expect particular context error according to Dial docs

client/common.go

@@ -24,24 +24,6 @@ func (x statusRes) Status() apistatus.Status {
 	return x.st
 }
 
-// groups meta parameters shared between all Client operations.
-type prmCommonMeta struct {
-	// FrostFS request X-Headers
-	xHeaders []string
-}
-
-// WithXHeaders specifies list of extended headers (string key-value pairs)
-// to be attached to the request. Must have an even length.
-//
-// Slice must not be mutated until the operation completes.
-func (x *prmCommonMeta) WithXHeaders(hs ...string) {
-	if len(hs)%2 != 0 {
-		panic("slice of X-Headers with odd length")
-	}
-
-	x.xHeaders = hs
-}
-
 func writeXHeadersToMeta(xHeaders []string, h *v2session.RequestMetaHeader) {
 	if len(xHeaders) == 0 {
 		return
@@ -64,16 +46,13 @@ func writeXHeadersToMeta(xHeaders []string, h *v2session.RequestMetaHeader) {
 
 // error messages.
 var (
-	errorMissingContainer     = errors.New("missing container")
-	errorMissingObject        = errors.New("missing object")
-	errorAccountNotSet        = errors.New("account not set")
-	errorServerAddrUnset      = errors.New("server address is unset or empty")
-	errorNonPositiveTimeout   = errors.New("non-positive timeout")
-	errorEACLTableNotSet      = errors.New("eACL table not set")
-	errorMissingAnnouncements = errors.New("missing announcements")
-	errorZeroRangeLength      = errors.New("zero range length")
-	errorMissingRanges        = errors.New("missing ranges")
-	errorInvalidXHeaders      = errors.New("xheaders must be presented only as key-value pairs")
+	errorMissingContainer = errors.New("missing container")
+	errorMissingObject    = errors.New("missing object")
+	errorAccountNotSet    = errors.New("account not set")
+	errorServerAddrUnset  = errors.New("server address is unset or empty")
+	errorZeroRangeLength  = errors.New("zero range length")
+	errorMissingRanges    = errors.New("missing ranges")
+	errorInvalidXHeaders  = errors.New("xheaders must be presented only as key-value pairs")
 )
 
 type request interface {
@@ -96,19 +75,19 @@ func (c *Client) prepareRequest(req request, meta *v2session.RequestMetaHeader)
 
 	meta.SetTTL(ttl)
 	meta.SetVersion(verV2)
-	meta.SetNetworkMagic(c.prm.netMagic)
+	meta.SetNetworkMagic(c.prm.NetMagic)
 
 	req.SetMetaHeader(meta)
 }
 
 // processResponse verifies response signature and converts status to an error if needed.
 func (c *Client) processResponse(resp responseV2) (apistatus.Status, error) {
-	if c.prm.cbRespInfo != nil {
+	if c.prm.ResponseInfoCallback != nil {
 		rmi := ResponseMetaInfo{
 			key:   resp.GetVerificationHeader().GetBodySignature().GetKey(),
 			epoch: resp.GetMetaHeader().GetEpoch(),
 		}
-		if err := c.prm.cbRespInfo(rmi); err != nil {
+		if err := c.prm.ResponseInfoCallback(rmi); err != nil {
 			return nil, fmt.Errorf("response callback error: %w", err)
 		}
 	}
@@ -119,7 +98,7 @@ func (c *Client) processResponse(resp responseV2) (apistatus.Status, error) {
 	}
 
 	st := apistatus.FromStatusV2(resp.GetMetaHeader().GetStatus())
-	if c.prm.resolveFrostFSErrors {
+	if !c.prm.DisableFrostFSErrorResolution {
 		return st, apistatus.ErrFromStatus(st)
 	}
 	return st, nil

client/container_delete.go

@@ -52,7 +52,7 @@ func (prm *PrmContainerDelete) buildRequest(c *Client) (*v2container.DeleteReque
 
 	var sig frostfscrypto.Signature
 
-	err := sig.Calculate(frostfsecdsa.SignerRFC6979(c.prm.key), data)
+	err := sig.Calculate(frostfsecdsa.SignerRFC6979(c.prm.Key), data)
 	if err != nil {
 		return nil, fmt.Errorf("calculate signature: %w", err)
 	}
@@ -101,9 +101,9 @@ type ResContainerDelete struct {
 //
 // Exactly one return value is non-nil. By default, server status is returned in res structure.
 // Any client's internal or transport errors are returned as `error`.
-// If PrmInit.ResolveFrostFSFailures has been called, unsuccessful
-// FrostFS status codes are returned as `error`, otherwise, are included
-// in the returned result structure.
+// If PrmInit.DisableFrostFSFailuresResolution has been called, unsuccessful
+// FrostFS status codes are included in the returned result structure,
+// otherwise, are also returned as `error`.
 //
 // Operation is asynchronous and no guaranteed even in the absence of errors.
 // The required time is also not predictable.
@@ -124,7 +124,7 @@ func (c *Client) ContainerDelete(ctx context.Context, prm PrmContainerDelete) (*
 		return nil, err
 	}
 
-	if err := signature.SignServiceMessage(&c.prm.key, req); err != nil {
+	if err := signature.SignServiceMessage(&c.prm.Key, req); err != nil {
 		return nil, fmt.Errorf("sign request: %w", err)
 	}
 

client/container_eacl.go

@@ -13,6 +13,7 @@ import (
 	apistatus "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/client/status"
 	cid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/container/id"
 	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/eacl"
+	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/session"
 )
 
 // PrmContainerEACL groups parameters of ContainerEACL operation.
@@ -21,6 +22,8 @@ type PrmContainerEACL struct {
 	XHeaders []string
 
 	ContainerID *cid.ID
+
+	Session *session.Container
 }
 
 // SetContainer sets identifier of the FrostFS container to read the eACL table.
@@ -46,9 +49,19 @@ func (x *PrmContainerEACL) buildRequest(c *Client) (*v2container.GetExtendedACLR
 	reqBody := new(v2container.GetExtendedACLRequestBody)
 	reqBody.SetContainerID(&cidV2)
 
+	var meta v2session.RequestMetaHeader
+	writeXHeadersToMeta(x.XHeaders, &meta)
+
+	if x.Session != nil {
+		var tokv2 v2session.Token
+		x.Session.WriteToV2(&tokv2)
+
+		meta.SetSessionToken(&tokv2)
+	}
+
 	var req v2container.GetExtendedACLRequest
 	req.SetBody(reqBody)
-	c.prepareRequest(&req, new(v2session.RequestMetaHeader))
+	c.prepareRequest(&req, &meta)
 	return &req, nil
 }
 
@@ -68,9 +81,9 @@ func (x ResContainerEACL) Table() eacl.Table {
 //
 // Exactly one return value is non-nil. By default, server status is returned in res structure.
 // Any client's internal or transport errors are returned as `error`.
-// If PrmInit.ResolveFrostFSFailures has been called, unsuccessful
-// FrostFS status codes are returned as `error`, otherwise, are included
-// in the returned result structure.
+// If PrmInit.DisableFrostFSFailuresResolution has been called, unsuccessful
+// FrostFS status codes are included in the returned result structure,
+// otherwise, are also returned as `error`.
 //
 // Returns an error if parameters are set incorrectly (see PrmContainerEACL docs).
 // Context is required and must not be nil. It is used for network communication.
@@ -85,7 +98,7 @@ func (c *Client) ContainerEACL(ctx context.Context, prm PrmContainerEACL) (*ResC
 		return nil, err
 	}
 
-	if err := signature.SignServiceMessage(&c.prm.key, req); err != nil {
+	if err := signature.SignServiceMessage(&c.prm.Key, req); err != nil {
 		return nil, fmt.Errorf("sign request: %w", err)
 	}
 

client/container_get.go

@@ -14,6 +14,7 @@ import (
 	apistatus "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/client/status"
 	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/container"
 	cid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/container/id"
+	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/session"
 )
 
 // PrmContainerGet groups parameters of ContainerGet operation.
@@ -22,6 +23,8 @@ type PrmContainerGet struct {
 	XHeaders []string
 
 	ContainerID *cid.ID
+
+	Session *session.Container
 }
 
 // SetContainer sets identifier of the container to be read.
@@ -47,9 +50,19 @@ func (prm *PrmContainerGet) buildRequest(c *Client) (*v2container.GetRequest, er
 	reqBody := new(v2container.GetRequestBody)
 	reqBody.SetContainerID(&cidV2)
 
+	var meta v2session.RequestMetaHeader
+	writeXHeadersToMeta(prm.XHeaders, &meta)
+
+	if prm.Session != nil {
+		var tokv2 v2session.Token
+		prm.Session.WriteToV2(&tokv2)
+
+		meta.SetSessionToken(&tokv2)
+	}
+
 	var req v2container.GetRequest
 	req.SetBody(reqBody)
-	c.prepareRequest(&req, new(v2session.RequestMetaHeader))
+	c.prepareRequest(&req, &meta)
 	return &req, nil
 }
 
@@ -71,9 +84,9 @@ func (x ResContainerGet) Container() container.Container {
 //
 // Exactly one return value is non-nil. By default, server status is returned in res structure.
 // Any client's internal or transport errors are returned as `error`.
-// If PrmInit.ResolveFrostFSFailures has been called, unsuccessful
-// FrostFS status codes are returned as `error`, otherwise, are included
-// in the returned result structure.
+// If PrmInit.DisableFrostFSFailuresResolution has been called, unsuccessful
+// FrostFS status codes are included in the returned result structure,
+// otherwise, are also returned as `error`.
 //
 // Returns an error if parameters are set incorrectly (see PrmContainerGet docs).
 // Context is required and must not be nil. It is used for network communication.
@@ -87,7 +100,7 @@ func (c *Client) ContainerGet(ctx context.Context, prm PrmContainerGet) (*ResCon
 		return nil, err
 	}
 
-	if err := signature.SignServiceMessage(&c.prm.key, req); err != nil {
+	if err := signature.SignServiceMessage(&c.prm.Key, req); err != nil {
 		return nil, fmt.Errorf("sign request: %w", err)
 	}
 

client/container_list.go

@@ -12,38 +12,51 @@ import (
 	"git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/signature"
 	apistatus "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/client/status"
 	cid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/container/id"
+	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/session"
 	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/user"
 )
 
 // PrmContainerList groups parameters of ContainerList operation.
 type PrmContainerList struct {
-	prmCommonMeta
+	XHeaders []string
 
-	ownerSet bool
-	ownerID  user.ID
+	Account user.ID
+
+	Session *session.Container
 }
 
 // SetAccount sets identifier of the FrostFS account to list the containers.
 // Required parameter.
+//
+// Deprecated: Use PrmContainerList.Account instead.
 func (x *PrmContainerList) SetAccount(id user.ID) {
-	x.ownerID = id
-	x.ownerSet = true
+	x.Account = id
 }
 
 func (x *PrmContainerList) buildRequest(c *Client) (*v2container.ListRequest, error) {
-	if !x.ownerSet {
+	if x.Account.IsEmpty() {
 		return nil, errorAccountNotSet
 	}
 
 	var ownerV2 refs.OwnerID
-	x.ownerID.WriteToV2(&ownerV2)
+	x.Account.WriteToV2(&ownerV2)
 
 	reqBody := new(v2container.ListRequestBody)
 	reqBody.SetOwnerID(&ownerV2)
 
+	var meta v2session.RequestMetaHeader
+	writeXHeadersToMeta(x.XHeaders, &meta)
+
+	if x.Session != nil {
+		var tokv2 v2session.Token
+		x.Session.WriteToV2(&tokv2)
+
+		meta.SetSessionToken(&tokv2)
+	}
+
 	var req v2container.ListRequest
 	req.SetBody(reqBody)
-	c.prepareRequest(&req, new(v2session.RequestMetaHeader))
+	c.prepareRequest(&req, &meta)
 	return &req, nil
 }
 
@@ -65,9 +78,9 @@ func (x ResContainerList) Containers() []cid.ID {
 //
 // Exactly one return value is non-nil. By default, server status is returned in res structure.
 // Any client's internal or transport errors are returned as `error`.
-// If PrmInit.ResolveFrostFSFailures has been called, unsuccessful
-// FrostFS status codes are returned as `error`, otherwise, are included
-// in the returned result structure.
+// If PrmInit.DisableFrostFSFailuresResolution has been called, unsuccessful
+// FrostFS status codes are included in the returned result structure,
+// otherwise, are also returned as `error`.
 //
 // Returns an error if parameters are set incorrectly (see PrmContainerList docs).
 // Context is required and must not be nil. It is used for network communication.
@@ -80,7 +93,7 @@ func (c *Client) ContainerList(ctx context.Context, prm PrmContainerList) (*ResC
 		return nil, err
 	}
 
-	if err := signature.SignServiceMessage(&c.prm.key, req); err != nil {
+	if err := signature.SignServiceMessage(&c.prm.Key, req); err != nil {
 		return nil, fmt.Errorf("sign request: %w", err)
 	}
 

client/container_put.go

@@ -64,7 +64,7 @@ func (x *PrmContainerPut) buildRequest(c *Client) (*v2container.PutRequest, erro
 
 	var sig frostfscrypto.Signature
 
-	err := container.CalculateSignature(&sig, *x.Container, c.prm.key)
+	err := container.CalculateSignature(&sig, *x.Container, c.prm.Key)
 	if err != nil {
 		return nil, fmt.Errorf("calculate container signature: %w", err)
 	}
@@ -110,9 +110,9 @@ func (x ResContainerPut) ID() cid.ID {
 //
 // Exactly one return value is non-nil. By default, server status is returned in res structure.
 // Any client's internal or transport errors are returned as `error`.
-// If PrmInit.ResolveFrostFSFailures has been called, unsuccessful
-// FrostFS status codes are returned as `error`, otherwise, are included
-// in the returned result structure.
+// If PrmInit.DisableFrostFSFailuresResolution has been called, unsuccessful
+// FrostFS status codes are included in the returned result structure,
+// otherwise, are also returned as `error`.
 //
 // Operation is asynchronous and no guaranteed even in the absence of errors.
 // The required time is also not predictable.
@@ -132,7 +132,7 @@ func (c *Client) ContainerPut(ctx context.Context, prm PrmContainerPut) (*ResCon
 		return nil, err
 	}
 
-	if err := signature.SignServiceMessage(&c.prm.key, req); err != nil {
+	if err := signature.SignServiceMessage(&c.prm.Key, req); err != nil {
 		return nil, fmt.Errorf("sign request: %w", err)
 	}
 

client/container_set_eacl.go

@@ -1,136 +0,0 @@
-package client
-
-import (
-	"context"
-	"fmt"
-
-	v2container "git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/container"
-	"git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/refs"
-	rpcapi "git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/rpc"
-	"git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/rpc/client"
-	v2session "git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/session"
-	"git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/signature"
-	frostfscrypto "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/crypto"
-	frostfsecdsa "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/crypto/ecdsa"
-	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/eacl"
-	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/session"
-)
-
-// PrmContainerSetEACL groups parameters of ContainerSetEACL operation.
-type PrmContainerSetEACL struct {
-	// FrostFS request X-Headers.
-	XHeaders []string
-
-	Table *eacl.Table
-
-	Session *session.Container
-}
-
-// SetTable sets eACL table structure to be set for the container.
-// Required parameter.
-//
-// Deprecated: Use PrmContainerSetEACL.Table instead.
-func (x *PrmContainerSetEACL) SetTable(table eacl.Table) {
-	x.Table = &table
-}
-
-// WithinSession specifies session within which extended ACL of the container
-// should be saved.
-//
-// Creator of the session acquires the authorship of the request. This affects
-// the execution of an operation (e.g. access control).
-//
-// Session is optional, if set the following requirements apply:
-//   - if particular container is specified (ApplyOnlyTo), it MUST equal the container
-//     for which extended ACL is going to be set
-//   - session operation MUST be session.VerbContainerSetEACL (ForVerb)
-//   - token MUST be signed using private key of the owner of the container to be saved
-//
-// Deprecated: Use PrmContainerSetEACL.Session instead.
-func (x *PrmContainerSetEACL) WithinSession(s session.Container) {
-	x.Session = &s
-}
-
-func (x *PrmContainerSetEACL) buildRequest(c *Client) (*v2container.SetExtendedACLRequest, error) {
-	if x.Table == nil {
-		return nil, errorEACLTableNotSet
-	}
-
-	if len(x.XHeaders)%2 != 0 {
-		return nil, errorInvalidXHeaders
-	}
-
-	eaclV2 := x.Table.ToV2()
-
-	var sig frostfscrypto.Signature
-
-	err := sig.Calculate(frostfsecdsa.SignerRFC6979(c.prm.key), eaclV2.StableMarshal(nil))
-	if err != nil {
-		return nil, fmt.Errorf("calculate signature: %w", err)
-	}
-
-	var sigv2 refs.Signature
-	sig.WriteToV2(&sigv2)
-
-	reqBody := new(v2container.SetExtendedACLRequestBody)
-	reqBody.SetEACL(eaclV2)
-	reqBody.SetSignature(&sigv2)
-
-	var meta v2session.RequestMetaHeader
-	writeXHeadersToMeta(x.XHeaders, &meta)
-
-	if x.Session != nil {
-		var tokv2 v2session.Token
-		x.Session.WriteToV2(&tokv2)
-
-		meta.SetSessionToken(&tokv2)
-	}
-
-	var req v2container.SetExtendedACLRequest
-	req.SetBody(reqBody)
-	c.prepareRequest(&req, &meta)
-	return &req, nil
-}
-
-// ResContainerSetEACL groups resulting values of ContainerSetEACL operation.
-type ResContainerSetEACL struct {
-	statusRes
-}
-
-// ContainerSetEACL sends request to update eACL table of the FrostFS container.
-//
-// Exactly one return value is non-nil. By default, server status is returned in res structure.
-// Any client's internal or transport errors are returned as `error`.
-// If PrmInit.ResolveFrostFSFailures has been called, unsuccessful
-// FrostFS status codes are returned as `error`, otherwise, are included
-// in the returned result structure.
-//
-// Operation is asynchronous and no guaranteed even in the absence of errors.
-// The required time is also not predictable.
-//
-// Success can be verified by reading by identifier (see EACL).
-//
-// Returns an error if parameters are set incorrectly (see PrmContainerSetEACL docs).
-// Context is required and must not be nil. It is used for network communication.
-//
-// Return statuses:
-//   - global (see Client docs).
-func (c *Client) ContainerSetEACL(ctx context.Context, prm PrmContainerSetEACL) (*ResContainerSetEACL, error) {
-	req, err := prm.buildRequest(c)
-	if err != nil {
-		return nil, err
-	}
-
-	if err := signature.SignServiceMessage(&c.prm.key, req); err != nil {
-		return nil, fmt.Errorf("sign request: %w", err)
-	}
-
-	resp, err := rpcapi.SetEACL(&c.c, req, client.WithContext(ctx))
-	if err != nil {
-		return nil, err
-	}
-
-	var res ResContainerSetEACL
-	res.st, err = c.processResponse(resp)
-	return &res, err
-}

client/container_space.go

@@ -1,92 +0,0 @@
-package client
-
-import (
-	"context"
-	"fmt"
-
-	v2container "git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/container"
-	rpcapi "git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/rpc"
-	"git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/rpc/client"
-	v2session "git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/session"
-	"git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/signature"
-	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/container"
-)
-
-// PrmAnnounceSpace groups parameters of ContainerAnnounceUsedSpace operation.
-type PrmAnnounceSpace struct {
-	XHeaders []string
-
-	Announcements []container.SizeEstimation
-}
-
-// SetValues sets values describing volume of space that is used for the container objects.
-// Required parameter. Must not be empty.
-//
-// Must not be mutated before the end of the operation.
-//
-// Deprecated: Use PrmAnnounceSpace.Announcements instead.
-func (x *PrmAnnounceSpace) SetValues(vs []container.SizeEstimation) {
-	x.Announcements = vs
-}
-
-func (x *PrmAnnounceSpace) buildRequest(c *Client) (*v2container.AnnounceUsedSpaceRequest, error) {
-	if len(x.Announcements) == 0 {
-		return nil, errorMissingAnnouncements
-	}
-
-	v2announce := make([]v2container.UsedSpaceAnnouncement, len(x.Announcements))
-	for i := range x.Announcements {
-		x.Announcements[i].WriteToV2(&v2announce[i])
-	}
-
-	reqBody := new(v2container.AnnounceUsedSpaceRequestBody)
-	reqBody.SetAnnouncements(v2announce)
-
-	var req v2container.AnnounceUsedSpaceRequest
-	req.SetBody(reqBody)
-	c.prepareRequest(&req, new(v2session.RequestMetaHeader))
-	return &req, nil
-}
-
-// ResAnnounceSpace groups resulting values of ContainerAnnounceUsedSpace operation.
-type ResAnnounceSpace struct {
-	statusRes
-}
-
-// ContainerAnnounceUsedSpace sends request to announce volume of the space used for the container objects.
-//
-// Exactly one return value is non-nil. By default, server status is returned in res structure.
-// Any client's internal or transport errors are returned as `error`.
-// If PrmInit.ResolveFrostFSFailures has been called, unsuccessful
-// FrostFS status codes are returned as `error`, otherwise, are included
-// in the returned result structure.
-//
-// Operation is asynchronous and no guaranteed even in the absence of errors.
-// The required time is also not predictable.
-//
-// At this moment success can not be checked.
-//
-// Returns an error if parameters are set incorrectly (see PrmAnnounceSpace docs).
-// Context is required and must not be nil. It is used for network communication.
-//
-// Return statuses:
-//   - global (see Client docs).
-func (c *Client) ContainerAnnounceUsedSpace(ctx context.Context, prm PrmAnnounceSpace) (*ResAnnounceSpace, error) {
-	req, err := prm.buildRequest(c)
-	if err != nil {
-		return nil, err
-	}
-
-	if err := signature.SignServiceMessage(&c.prm.key, req); err != nil {
-		return nil, fmt.Errorf("sign request: %w", err)
-	}
-
-	resp, err := rpcapi.AnnounceUsedSpace(&c.c, req, client.WithContext(ctx))
-	if err != nil {
-		return nil, err
-	}
-
-	var res ResAnnounceSpace
-	res.st, err = c.processResponse(resp)
-	return &res, err
-}

client/errors.go

@@ -61,6 +61,18 @@ func IsErrSessionNotFound(err error) bool {
 	return wrapsErrType[*apistatus.SessionTokenNotFound](err)
 }
 
+// IsErrAPEManagerAccessDenied checks if err corresponds to FrostFS status return
+// corresponding to apemanager access deny. Supports wrapped errors.
+func IsErrAPEManagerAccessDenied(err error) bool {
+	return wrapsErrType[*apistatus.APEManagerAccessDenied](err)
+}
+
+// IsErrNodeUnderMaintenance checks if err corresponds to FrostFS status return
+// corresponding to nodes being under maintenance. Supports wrapped errors.
+func IsErrNodeUnderMaintenance(err error) bool {
+	return wrapsErrType[*apistatus.NodeUnderMaintenance](err)
+}
+
 // returns error describing missing field with the given name.
 func newErrMissingResponseField(name string) error {
 	return fmt.Errorf("missing %s field in the response", name)

client/errors_test.go

@@ -33,10 +33,15 @@ func TestErrors(t *testing.T) {
 		{
 			check: client.IsErrSessionExpired,
 			err:   new(apistatus.SessionTokenExpired),
-		}, {
+		},
+		{
 			check: client.IsErrSessionNotFound,
 			err:   new(apistatus.SessionTokenNotFound),
 		},
+		{
+			check: client.IsErrNodeUnderMaintenance,
+			err:   new(apistatus.NodeUnderMaintenance),
+		},
 	}
 
 	for i := range errs {

client/netmap.go

@@ -53,9 +53,9 @@ func (x ResEndpointInfo) NodeInfo() netmap.NodeInfo {
 // Method can be used as a health check to see if node is alive and responds to requests.
 //
 // Any client's internal or transport errors are returned as `error`.
-// If PrmInit.ResolveFrostFSFailures has been called, unsuccessful
-// FrostFS status codes are returned as `error`, otherwise, are included
-// in the returned result structure.
+// If PrmInit.DisableFrostFSFailuresResolution has been called, unsuccessful
+// FrostFS status codes are included in the returned result structure,
+// otherwise, are also returned as `error`.
 //
 // Returns an error if parameters are set incorrectly (see PrmEndpointInfo docs).
 // Context is required and must not be nil. It is used for network communication.
@@ -71,7 +71,7 @@ func (c *Client) EndpointInfo(ctx context.Context, prm PrmEndpointInfo) (*ResEnd
 		return nil, err
 	}
 
-	if err := signature.SignServiceMessage(&c.prm.key, req); err != nil {
+	if err := signature.SignServiceMessage(&c.prm.Key, req); err != nil {
 		return nil, fmt.Errorf("sign request: %w", err)
 	}
 
@@ -140,9 +140,9 @@ func (x ResNetworkInfo) Info() netmap.NetworkInfo {
 // NetworkInfo requests information about the FrostFS network of which the remote server is a part.
 //
 // Any client's internal or transport errors are returned as `error`.
-// If PrmInit.ResolveFrostFSFailures has been called, unsuccessful
-// FrostFS status codes are returned as `error`, otherwise, are included
-// in the returned result structure.
+// If PrmInit.DisableFrostFSFailuresResolution has been called, unsuccessful
+// FrostFS status codes are included in the returned result structure,
+// otherwise, are also returned as `error`.
 //
 // Returns an error if parameters are set incorrectly (see PrmNetworkInfo docs).
 // Context is required and must not be nil. It is used for network communication.
@@ -158,7 +158,7 @@ func (c *Client) NetworkInfo(ctx context.Context, prm PrmNetworkInfo) (*ResNetwo
 		return nil, err
 	}
 
-	if err := signature.SignServiceMessage(&c.prm.key, req); err != nil {
+	if err := signature.SignServiceMessage(&c.prm.Key, req); err != nil {
 		return nil, fmt.Errorf("sign request: %w", err)
 	}
 
@@ -186,8 +186,7 @@ func (c *Client) NetworkInfo(ctx context.Context, prm PrmNetworkInfo) (*ResNetwo
 }
 
 // PrmNetMapSnapshot groups parameters of NetMapSnapshot operation.
-type PrmNetMapSnapshot struct {
-}
+type PrmNetMapSnapshot struct{}
 
 // ResNetMapSnapshot groups resulting values of NetMapSnapshot operation.
 type ResNetMapSnapshot struct {
@@ -204,9 +203,9 @@ func (x ResNetMapSnapshot) NetMap() netmap.NetMap {
 // NetMapSnapshot requests current network view of the remote server.
 //
 // Any client's internal or transport errors are returned as `error`.
-// If PrmInit.ResolveFrostFSFailures has been called, unsuccessful
-// FrostFS status codes are returned as `error`, otherwise, are included
-// in the returned result structure.
+// If PrmInit.DisableFrostFSFailuresResolution has been called, unsuccessful
+// FrostFS status codes are included in the returned result structure,
+// otherwise, are also returned as `error`.
 //
 // Returns an error if parameters are set incorrectly.
 // Context is required and MUST NOT be nil. It is used for network communication.
@@ -228,7 +227,7 @@ func (c *Client) NetMapSnapshot(ctx context.Context, _ PrmNetMapSnapshot) (*ResN
 	req.SetBody(&body)
 	c.prepareRequest(&req, &meta)
 
-	err := signature.SignServiceMessage(&c.prm.key, &req)
+	err := signature.SignServiceMessage(&c.prm.Key, &req)
 	if err != nil {
 		return nil, fmt.Errorf("sign request: %w", err)
 	}

client/netmap_test.go

@@ -67,6 +67,7 @@ func TestClient_NetMapSnapshot(t *testing.T) {
 	var res *ResNetMapSnapshot
 	var srv serverNetMap
 	c := newClient(&srv)
+	c.prm.DisableFrostFSFailuresResolution()
 	ctx := context.Background()
 
 	// request signature

client/object_delete.go

@@ -112,9 +112,9 @@ func (prm *PrmObjectDelete) buildRequest(c *Client) (*v2object.DeleteRequest, er
 //
 // Exactly one return value is non-nil. By default, server status is returned in res structure.
 // Any client's internal or transport errors are returned as `error`,
-// If PrmInit.ResolveFrostFSFailures has been called, unsuccessful
-// FrostFS status codes are returned as `error`, otherwise, are included
-// in the returned result structure.
+// If PrmInit.DisableFrostFSFailuresResolution has been called, unsuccessful
+// FrostFS status codes are included in the returned result structure,
+// otherwise, are also returned as `error`.
 //
 // Returns an error if parameters are set incorrectly (see PrmObjectDelete docs).
 // Context is required and must not be nil. It is used for network communication.
@@ -131,7 +131,7 @@ func (c *Client) ObjectDelete(ctx context.Context, prm PrmObjectDelete) (*ResObj
 		return nil, err
 	}
 
-	key := c.prm.key
+	key := c.prm.Key
 	if prm.Key != nil {
 		key = *prm.Key
 	}

client/object_get.go

@@ -150,6 +150,9 @@ func (x *ObjectReader) ReadHeader(dst *object.Object) bool {
 	case *v2object.SplitInfo:
 		x.err = object.NewSplitInfoError(object.NewSplitInfoFromV2(v))
 		return false
+	case *v2object.ECInfo:
+		x.err = object.NewECInfoError(object.NewECInfoFromV2(v))
+		return false
 	case *v2object.GetObjectPartInit:
 		partInit = v
 	}
@@ -258,6 +261,7 @@ func (x *ObjectReader) close(ignoreEOF bool) (*ResObjectGet, error) {
 // Return errors:
 //
 //	*object.SplitInfoError (returned on virtual objects with PrmObjectGet.MakeRaw).
+//	*object.ECInfoError (returned on erasure-coded objects with PrmObjectGet.MakeRaw).
 //
 // Return statuses:
 //   - global (see Client docs);
@@ -307,7 +311,7 @@ func (c *Client) ObjectGetInit(ctx context.Context, prm PrmObjectGet) (*ObjectRe
 
 	key := prm.Key
 	if key == nil {
-		key = &c.prm.key
+		key = &c.prm.Key
 	}
 
 	err = signature.SignServiceMessage(key, req)
@@ -444,9 +448,9 @@ func (prm *PrmObjectHead) buildRequest(c *Client) (*v2object.HeadRequest, error)
 //
 // Exactly one return value is non-nil. By default, server status is returned in res structure.
 // Any client's internal or transport errors are returned as `error`,
-// If PrmInit.ResolveFrostFSFailures has been called, unsuccessful
-// FrostFS status codes are returned as `error`, otherwise, are included
-// in the returned result structure.
+// If PrmInit.DisableFrostFSFailuresResolution has been called, unsuccessful
+// FrostFS status codes are included in the returned result structure,
+// otherwise, are also returned as `error`.
 //
 // Returns an error if parameters are set incorrectly (see PrmObjectHead docs).
 // Context is required and must not be nil. It is used for network communication.
@@ -454,6 +458,7 @@ func (prm *PrmObjectHead) buildRequest(c *Client) (*v2object.HeadRequest, error)
 // Return errors:
 //
 //	*object.SplitInfoError (returned on virtual objects with PrmObjectHead.MakeRaw).
+//	*object.ECInfoError (returned on erasure-coded objects with PrmObjectHead.MakeRaw).
 //
 // Return statuses:
 //   - global (see Client docs);
@@ -468,7 +473,7 @@ func (c *Client) ObjectHead(ctx context.Context, prm PrmObjectHead) (*ResObjectH
 		return nil, err
 	}
 
-	key := c.prm.key
+	key := c.prm.Key
 	if prm.Key != nil {
 		key = *prm.Key
 	}
@@ -502,6 +507,8 @@ func (c *Client) ObjectHead(ctx context.Context, prm PrmObjectHead) (*ResObjectH
 		return nil, fmt.Errorf("unexpected header type %T", v)
 	case *v2object.SplitInfo:
 		return nil, object.NewSplitInfoError(object.NewSplitInfoFromV2(v))
+	case *v2object.ECInfo:
+		return nil, object.NewECInfoError(object.NewECInfoFromV2(v))
 	case *v2object.HeaderWithSignature:
 		res.hdr = v
 	}
@@ -665,6 +672,9 @@ func (x *ObjectRangeReader) readChunk(buf []byte) (int, bool) {
 		case *v2object.SplitInfo:
 			x.err = object.NewSplitInfoError(object.NewSplitInfoFromV2(v))
 			return read, false
+		case *v2object.ECInfo:
+			x.err = object.NewECInfoError(object.NewECInfoFromV2(v))
+			return read, false
 		case *v2object.GetRangePartChunk:
 			partChunk = v
 		}
@@ -725,6 +735,7 @@ func (x *ObjectRangeReader) close(ignoreEOF bool) (*ResObjectRange, error) {
 // Return errors:
 //
 //	*object.SplitInfoError (returned on virtual objects with PrmObjectRange.MakeRaw).
+//	*object.ECInfoError (returned on erasure-coded objects with PrmObjectRange.MakeRaw).
 //
 // Return statuses:
 //   - global (see Client docs);
@@ -776,7 +787,7 @@ func (c *Client) ObjectRangeInit(ctx context.Context, prm PrmObjectRange) (*Obje
 
 	key := prm.Key
 	if key == nil {
-		key = &c.prm.key
+		key = &c.prm.Key
 	}
 
 	err = signature.SignServiceMessage(key, req)

client/object_hash.go

@@ -152,9 +152,9 @@ func (prm *PrmObjectHash) buildRequest(c *Client) (*v2object.GetRangeHashRequest
 //
 // Exactly one return value is non-nil. By default, server status is returned in res structure.
 // Any client's internal or transport errors are returned as `error`,
-// If PrmInit.ResolveFrostFSFailures has been called, unsuccessful
-// FrostFS status codes are returned as `error`, otherwise, are included
-// in the returned result structure.
+// If PrmInit.DisableFrostFSFailuresResolution has been called, unsuccessful
+// FrostFS status codes are included in the returned result structure,
+// otherwise, are also returned as `error`.
 //
 // Returns an error if parameters are set incorrectly (see PrmObjectHash docs).
 // Context is required and must not be nil. It is used for network communication.
@@ -172,7 +172,7 @@ func (c *Client) ObjectHash(ctx context.Context, prm PrmObjectHash) (*ResObjectH
 		return nil, err
 	}
 
-	key := c.prm.key
+	key := c.prm.Key
 	if prm.Key != nil {
 		key = *prm.Key
 	}

client/object_patch.go

@@ -0,0 +1,165 @@
+package client
+
+import (
+	"context"
+	"crypto/ecdsa"
+	"errors"
+	"fmt"
+	"io"
+
+	"git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/acl"
+	v2object "git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/object"
+	rpcapi "git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/rpc"
+	"git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/rpc/client"
+	v2session "git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/session"
+	"git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/signature"
+	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/bearer"
+	apistatus "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/client/status"
+	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object"
+	oid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object/id"
+	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/session"
+)
+
+type ResObjectPatch struct {
+	statusRes
+
+	obj oid.ID
+}
+
+func (r ResObjectPatch) ObjectID() oid.ID {
+	return r.obj
+}
+
+// PrmObjectPatch groups parameters of ObjectPatch operation.
+type PrmObjectPatch struct {
+	XHeaders []string
+
+	BearerToken *bearer.Token
+
+	Session *session.Object
+
+	Local bool
+
+	Address oid.Address
+
+	Key *ecdsa.PrivateKey
+
+	Offset uint64
+
+	Length uint64
+
+	Chunk []byte
+}
+
+func (c *Client) ObjectPatchInit(ctx context.Context, prm PrmObjectPatch) (*objectPatcher, error) {
+	if len(prm.XHeaders)%2 != 0 {
+		return nil, errorInvalidXHeaders
+	}
+
+	var p objectPatcher
+	stream, err := rpcapi.Patch(&c.c, &p.respV2, client.WithContext(ctx))
+	if err != nil {
+		return nil, fmt.Errorf("open stream: %w", err)
+	}
+
+	p.key = &c.prm.Key
+	if prm.Key != nil {
+		p.key = prm.Key
+	}
+	p.client = c
+	p.stream = stream
+	p.addr = prm.Address
+
+	p.req.SetBody(&v2object.PatchRequestBody{})
+
+	meta := new(v2session.RequestMetaHeader)
+	writeXHeadersToMeta(prm.XHeaders, meta)
+
+	if prm.BearerToken != nil {
+		v2BearerToken := new(acl.BearerToken)
+		prm.BearerToken.WriteToV2(v2BearerToken)
+		meta.SetBearerToken(v2BearerToken)
+	}
+
+	if prm.Session != nil {
+		v2SessionToken := new(v2session.Token)
+		prm.Session.WriteToV2(v2SessionToken)
+		meta.SetSessionToken(v2SessionToken)
+	}
+
+	if prm.Local {
+		meta.SetTTL(1)
+	}
+
+	c.prepareRequest(&p.req, meta)
+	return &p, nil
+}
+
+type objectPatcher struct {
+	client *Client
+
+	stream interface {
+		Write(*v2object.PatchRequest) error
+		Close() error
+	}
+
+	key *ecdsa.PrivateKey
+	res ResObjectPatch
+	err error
+
+	addr oid.Address
+
+	req    v2object.PatchRequest
+	respV2 v2object.PatchResponse
+}
+
+func (x *objectPatcher) Patch(_ context.Context, patch *object.Patch) bool {
+	x.req.SetBody(patch.ToV2())
+	x.req.SetVerificationHeader(nil)
+
+	x.err = signature.SignServiceMessage(x.key, &x.req)
+	if x.err != nil {
+		x.err = fmt.Errorf("sign message: %w", x.err)
+		return false
+	}
+
+	x.err = x.stream.Write(&x.req)
+
+	return x.err == nil
+}
+
+func (x *objectPatcher) Close(_ context.Context) (*ResObjectPatch, error) {
+	// Ignore io.EOF error, because it is expected error for client-side
+	// stream termination by the server. E.g. when stream contains invalid
+	// message. Server returns an error in response message (in status).
+	if x.err != nil && !errors.Is(x.err, io.EOF) {
+		return nil, x.err
+	}
+
+	if x.err = x.stream.Close(); x.err != nil {
+		return nil, x.err
+	}
+
+	x.res.st, x.err = x.client.processResponse(&x.respV2)
+	if x.err != nil {
+		return nil, x.err
+	}
+
+	if !apistatus.IsSuccessful(x.res.st) {
+		return &x.res, nil
+	}
+
+	const fieldID = "ID"
+
+	idV2 := x.respV2.Body.ObjectID
+	if idV2 == nil {
+		return nil, newErrMissingResponseField(fieldID)
+	}
+
+	x.err = x.res.obj.ReadFromV2(*idV2)
+	if x.err != nil {
+		x.err = newErrInvalidResponseField(fieldID, x.err)
+	}
+
+	return &x.res, nil
+}

client/object_put.go

@@ -4,6 +4,7 @@ import (
 	"context"
 	"crypto/ecdsa"
 
+	buffPool "git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/util/pool"
 	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/bearer"
 	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object"
 	oid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object/id"
@@ -36,6 +37,8 @@ type PrmObjectPutInit struct {
 	WithoutHomomorphHash bool
 
 	Key *ecdsa.PrivateKey
+
+	Pool *buffPool.BufferPool
 }
 
 // SetCopiesNumber sets number of object copies that is enough to consider put successful.
@@ -69,7 +72,8 @@ func (x *PrmObjectPutInit) SetGRPCPayloadChunkLen(v int) {
 type ResObjectPut struct {
 	statusRes
 
-	obj oid.ID
+	obj   oid.ID
+	epoch uint64
 }
 
 // StoredObjectID returns identifier of the saved object.
@@ -77,6 +81,11 @@ func (x ResObjectPut) StoredObjectID() oid.ID {
 	return x.obj
 }
 
+// StoredEpoch returns creation epoch of the saved object.
+func (x ResObjectPut) StoredEpoch() uint64 {
+	return x.epoch
+}
+
 // ObjectWriter is designed to write one object or
 // multiple parts of one object to FrostFS system.
 //

client/object_put_raw.go

@@ -28,7 +28,7 @@ func (c *Client) objectPutInitRaw(ctx context.Context, prm PrmObjectPutInit) (*o
 		return nil, fmt.Errorf("open stream: %w", err)
 	}
 
-	w.key = &c.prm.key
+	w.key = &c.prm.Key
 	if prm.Key != nil {
 		w.key = prm.Key
 	}
@@ -175,6 +175,7 @@ func (x *objectWriterRaw) Close(_ context.Context) (*ResObjectPut, error) {
 	if x.err != nil {
 		x.err = newErrInvalidResponseField(fieldID, x.err)
 	}
+	x.res.epoch = x.respV2.GetMetaHeader().GetEpoch()
 
 	return &x.res, nil
 }

client/object_put_single.go

@@ -93,6 +93,13 @@ func (prm *PrmObjectPutSingle) SetObject(o *v2object.Object) {
 // ResObjectPutSingle groups resulting values of PutSingle operation.
 type ResObjectPutSingle struct {
 	statusRes
+
+	epoch uint64
+}
+
+// Epoch returns creation epoch of the saved object.
+func (r *ResObjectPutSingle) Epoch() uint64 {
+	return r.epoch
 }
 
 func (prm *PrmObjectPutSingle) buildRequest(c *Client) (*v2object.PutSingleRequest, error) {
@@ -142,7 +149,7 @@ func (c *Client) ObjectPutSingle(ctx context.Context, prm PrmObjectPutSingle) (*
 		return nil, err
 	}
 
-	key := &c.prm.key
+	key := &c.prm.Key
 	if prm.Key != nil {
 		key = prm.Key
 	}
@@ -162,6 +169,7 @@ func (c *Client) ObjectPutSingle(ctx context.Context, prm PrmObjectPutSingle) (*
 	if err != nil {
 		return nil, err
 	}
+	res.epoch = resp.GetMetaHeader().GetEpoch()
 
 	return &res, nil
 }

client/object_put_transformer.go

@@ -3,6 +3,7 @@ package client
 import (
 	"context"
 
+	buffPool "git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/util/pool"
 	apistatus "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/client/status"
 	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object"
 	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object/transformer"
@@ -16,7 +17,7 @@ func (c *Client) objectPutInitTransformer(prm PrmObjectPutInit) (*objectWriterTr
 		client: c,
 		prm:    prm,
 	}
-	key := &c.prm.key
+	key := &c.prm.Key
 	if prm.Key != nil {
 		key = prm.Key
 	}
@@ -26,6 +27,7 @@ func (c *Client) objectPutInitTransformer(prm PrmObjectPutInit) (*objectWriterTr
 		MaxSize:                prm.MaxSize,
 		WithoutHomomorphicHash: prm.WithoutHomomorphHash,
 		NetworkState:           prm.EpochSource,
+		Pool:                   prm.Pool,
 	})
 	return &w, nil
 }
@@ -47,13 +49,20 @@ func (x *objectWriterTransformer) WritePayloadChunk(ctx context.Context, chunk [
 }
 
 func (x *objectWriterTransformer) Close(ctx context.Context) (*ResObjectPut, error) {
+	if x.err != nil {
+		return nil, x.err
+	}
+
 	ai, err := x.ot.Close(ctx)
 	if err != nil {
 		return nil, err
 	}
 
-	if ai != nil && ai.ParentID != nil {
-		x.it.res.obj = *ai.ParentID
+	if ai != nil {
+		x.it.res.epoch = ai.Epoch
+		if ai.ParentID != nil {
+			x.it.res.obj = *ai.ParentID
+		}
 	}
 	return x.it.res, nil
 }
@@ -83,7 +92,7 @@ func (it *internalTarget) putAsStream(ctx context.Context, o *object.Object) err
 		wrt.WritePayloadChunk(ctx, o.Payload())
 	}
 	it.res, err = wrt.Close(ctx)
-	if err == nil && !it.client.prm.resolveFrostFSErrors && !apistatus.IsSuccessful(it.res.st) {
+	if err == nil && it.client.prm.DisableFrostFSErrorResolution && !apistatus.IsSuccessful(it.res.st) {
 		err = apistatus.ErrFromStatus(it.res.st)
 	}
 	return err
@@ -110,15 +119,26 @@ func (it *internalTarget) tryPutSingle(ctx context.Context, o *object.Object) (b
 	}
 
 	if err == nil {
+		it.returnBuffPool(o.Payload())
 		id, _ := o.ID()
 		it.res = &ResObjectPut{
 			statusRes: res.statusRes,
 			obj:       id,
+			epoch:     res.epoch,
 		}
-		if !it.client.prm.resolveFrostFSErrors && !apistatus.IsSuccessful(it.res.st) {
+		if it.client.prm.DisableFrostFSErrorResolution && !apistatus.IsSuccessful(it.res.st) {
 			return true, apistatus.ErrFromStatus(it.res.st)
 		}
 		return true, nil
 	}
 	return true, err
 }
+
+func (it *internalTarget) returnBuffPool(playback []byte) {
+	if it.prm.Pool == nil {
+		return
+	}
+	var buffer buffPool.Buffer
+	buffer.Data = playback
+	it.prm.Pool.Put(&buffer)
+}

client/object_search.go

@@ -24,19 +24,26 @@ import (
 
 // PrmObjectSearch groups parameters of ObjectSearch operation.
 type PrmObjectSearch struct {
-	meta v2session.RequestMetaHeader
+	XHeaders []string
 
-	key *ecdsa.PrivateKey
+	Local bool
 
-	cnrSet bool
-	cnrID  cid.ID
+	BearerToken *bearer.Token
 
-	filters object.SearchFilters
+	Session *session.Object
+
+	ContainerID *cid.ID
+
+	Key *ecdsa.PrivateKey
+
+	Filters object.SearchFilters
 }
 
 // MarkLocal tells the server to execute the operation locally.
+//
+// Deprecated: Use PrmObjectSearch.Local instead.
 func (x *PrmObjectSearch) MarkLocal() {
-	x.meta.SetTTL(1)
+	x.Local = true
 }
 
 // WithinSession specifies session within which the search query must be executed.
@@ -45,10 +52,10 @@ func (x *PrmObjectSearch) MarkLocal() {
 // This may affect the execution of an operation (e.g. access control).
 //
 // Must be signed.
+//
+// Deprecated: Use PrmObjectSearch.Session instead.
 func (x *PrmObjectSearch) WithinSession(t session.Object) {
-	var tokv2 v2session.Token
-	t.WriteToV2(&tokv2)
-	x.meta.SetSessionToken(&tokv2)
+	x.Session = &t
 }
 
 // WithBearerToken attaches bearer token to be used for the operation.
@@ -56,37 +63,44 @@ func (x *PrmObjectSearch) WithinSession(t session.Object) {
 // If set, underlying eACL rules will be used in access control.
 //
 // Must be signed.
+//
+// Deprecated: Use PrmObjectSearch.BearerToken instead.
 func (x *PrmObjectSearch) WithBearerToken(t bearer.Token) {
-	var v2token acl.BearerToken
-	t.WriteToV2(&v2token)
-	x.meta.SetBearerToken(&v2token)
+	x.BearerToken = &t
 }
 
 // WithXHeaders specifies list of extended headers (string key-value pairs)
 // to be attached to the request. Must have an even length.
 //
 // Slice must not be mutated until the operation completes.
+//
+// Deprecated: Use PrmObjectSearch.XHeaders instead.
 func (x *PrmObjectSearch) WithXHeaders(hs ...string) {
-	writeXHeadersToMeta(hs, &x.meta)
+	x.XHeaders = hs
 }
 
 // UseKey specifies private key to sign the requests.
 // If key is not provided, then Client default key is used.
+//
+// Deprecated: Use PrmObjectSearch.Key instead.
 func (x *PrmObjectSearch) UseKey(key ecdsa.PrivateKey) {
-	x.key = &key
+	x.Key = &key
 }
 
 // InContainer specifies the container in which to look for objects.
 // Required parameter.
+//
+// Deprecated: Use PrmObjectSearch.ContainerID instead.
 func (x *PrmObjectSearch) InContainer(id cid.ID) {
-	x.cnrID = id
-	x.cnrSet = true
+	x.ContainerID = &id
 }
 
 // SetFilters sets filters by which to select objects. All container objects
 // match unset/empty filters.
+//
+// Deprecated: Use PrmObjectSearch.Filters instead.
 func (x *PrmObjectSearch) SetFilters(filters object.SearchFilters) {
-	x.filters = filters
+	x.Filters = filters
 }
 
 // ResObjectSearch groups the final result values of ObjectSearch operation.
@@ -212,6 +226,48 @@ func (x *ObjectListReader) Close() (*ResObjectSearch, error) {
 	return &x.res, nil
 }
 
+func (x *PrmObjectSearch) buildRequest(c *Client) (*v2object.SearchRequest, error) {
+	if x.ContainerID == nil {
+		return nil, errorMissingContainer
+	}
+
+	if len(x.XHeaders)%2 != 0 {
+		return nil, errorInvalidXHeaders
+	}
+
+	meta := new(v2session.RequestMetaHeader)
+	writeXHeadersToMeta(x.XHeaders, meta)
+
+	if x.BearerToken != nil {
+		v2BearerToken := new(acl.BearerToken)
+		x.BearerToken.WriteToV2(v2BearerToken)
+		meta.SetBearerToken(v2BearerToken)
+	}
+
+	if x.Session != nil {
+		v2SessionToken := new(v2session.Token)
+		x.Session.WriteToV2(v2SessionToken)
+		meta.SetSessionToken(v2SessionToken)
+	}
+
+	if x.Local {
+		meta.SetTTL(1)
+	}
+	cnrV2 := new(v2refs.ContainerID)
+	x.ContainerID.WriteToV2(cnrV2)
+
+	body := new(v2object.SearchRequestBody)
+	body.SetVersion(1)
+	body.SetContainerID(cnrV2)
+	body.SetFilters(x.Filters.ToV2())
+
+	req := new(v2object.SearchRequest)
+	req.SetBody(body)
+	c.prepareRequest(req, meta)
+
+	return req, nil
+}
+
 // ObjectSearchInit initiates object selection through a remote server using FrostFS API protocol.
 //
 // The call only opens the transmission channel, explicit fetching of matched objects
@@ -221,30 +277,17 @@ func (x *ObjectListReader) Close() (*ResObjectSearch, error) {
 // Returns an error if parameters are set incorrectly (see PrmObjectSearch docs).
 // Context is required and must not be nil. It is used for network communication.
 func (c *Client) ObjectSearchInit(ctx context.Context, prm PrmObjectSearch) (*ObjectListReader, error) {
-	// check parameters
-	if !prm.cnrSet {
-		return nil, errorMissingContainer
+	req, err := prm.buildRequest(c)
+	if err != nil {
+		return nil, err
 	}
 
-	var cidV2 v2refs.ContainerID
-	prm.cnrID.WriteToV2(&cidV2)
-
-	var body v2object.SearchRequestBody
-	body.SetVersion(1)
-	body.SetContainerID(&cidV2)
-	body.SetFilters(prm.filters.ToV2())
-
-	// init reader
-	var req v2object.SearchRequest
-	req.SetBody(&body)
-	c.prepareRequest(&req, &prm.meta)
-
-	key := prm.key
+	key := prm.Key
 	if key == nil {
-		key = &c.prm.key
+		key = &c.prm.Key
 	}
 
-	err := signature.SignServiceMessage(key, &req)
+	err = signature.SignServiceMessage(key, req)
 	if err != nil {
 		return nil, fmt.Errorf("sign request: %w", err)
 	}
@@ -252,7 +295,7 @@ func (c *Client) ObjectSearchInit(ctx context.Context, prm PrmObjectSearch) (*Ob
 	var r ObjectListReader
 	ctx, r.cancelCtxStream = context.WithCancel(ctx)
 
-	r.stream, err = rpcapi.SearchObjects(&c.c, &req, client.WithContext(ctx))
+	r.stream, err = rpcapi.SearchObjects(&c.c, req, client.WithContext(ctx))
 	if err != nil {
 		return nil, fmt.Errorf("open stream: %w", err)
 	}

client/session.go

@@ -39,7 +39,7 @@ func (x *PrmSessionCreate) UseKey(key ecdsa.PrivateKey) {
 }
 
 func (x *PrmSessionCreate) buildRequest(c *Client) (*v2session.CreateRequest, error) {
-	ownerKey := c.prm.key.PublicKey
+	ownerKey := c.prm.Key.PublicKey
 	if x.Key != nil {
 		ownerKey = x.Key.PublicKey
 	}
@@ -89,9 +89,9 @@ func (x ResSessionCreate) PublicKey() []byte {
 //
 // Exactly one return value is non-nil. By default, server status is returned in res structure.
 // Any client's internal or transport errors are returned as `error`.
-// If PrmInit.ResolveFrostFSFailures has been called, unsuccessful
-// FrostFS status codes are returned as `error`, otherwise, are included
-// in the returned result structure.
+// If PrmInit.DisableFrostFSFailuresResolution has been called, unsuccessful
+// FrostFS status codes are included in the returned result structure,
+// otherwise, are also returned as `error`.
 //
 // Returns an error if parameters are set incorrectly (see PrmSessionCreate docs).
 // Context is required and must not be nil. It is used for network communication.
@@ -104,7 +104,7 @@ func (c *Client) SessionCreate(ctx context.Context, prm PrmSessionCreate) (*ResS
 		return nil, err
 	}
 
-	if err := signature.SignServiceMessage(&c.prm.key, req); err != nil {
+	if err := signature.SignServiceMessage(&c.prm.Key, req); err != nil {
 		return nil, fmt.Errorf("sign request: %w", err)
 	}
 

client/status/apemanager.go

@@ -0,0 +1,53 @@
+package apistatus
+
+import (
+	"git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/apemanager"
+	"git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/status"
+)
+
+// APEManagerAccessDenied describes status of the failure because of the access control violation.
+// Instances provide Status and StatusV2 interfaces.
+type APEManagerAccessDenied struct {
+	v2 status.Status
+}
+
+const defaultAPEManagerAccessDeniedMsg = "apemanager access denied"
+
+func (x *APEManagerAccessDenied) Error() string {
+	msg := x.v2.Message()
+	if msg == "" {
+		msg = defaultAPEManagerAccessDeniedMsg
+	}
+
+	return errMessageStatusV2(
+		globalizeCodeV2(apemanager.StatusAPEManagerAccessDenied, apemanager.GlobalizeFail),
+		msg,
+	)
+}
+
+func (x *APEManagerAccessDenied) fromStatusV2(st *status.Status) {
+	x.v2 = *st
+}
+
+// ToStatusV2 converts APEManagerAccessDenied to v2's Status.
+// If the value was returned by FromStatusV2, returns the source message.
+// Otherwise, returns message with
+//   - code: APE_MANAGER_ACCESS_DENIED;
+//   - string message: "apemanager access denied";
+//   - details: empty.
+func (x APEManagerAccessDenied) ToStatusV2() *status.Status {
+	x.v2.SetCode(globalizeCodeV2(apemanager.StatusAPEManagerAccessDenied, apemanager.GlobalizeFail))
+	x.v2.SetMessage(defaultAPEManagerAccessDeniedMsg)
+	return &x.v2
+}
+
+// WriteReason writes human-readable access rejection reason.
+func (x *APEManagerAccessDenied) WriteReason(reason string) {
+	apemanager.WriteAccessDeniedDesc(&x.v2, reason)
+}
+
+// Reason returns human-readable access rejection reason returned by the server.
+// Returns empty value is reason is not presented.
+func (x APEManagerAccessDenied) Reason() string {
+	return apemanager.ReadAccessDeniedDesc(x.v2)
+}

client/status/v2.go

@@ -3,6 +3,7 @@ package apistatus
 import (
 	"fmt"
 
+	"git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/apemanager"
 	"git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/container"
 	"git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/object"
 	"git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/session"
@@ -92,6 +93,12 @@ func FromStatusV2(st *status.Status) Status {
 		case session.StatusTokenExpired:
 			decoder = new(SessionTokenExpired)
 		}
+	case apemanager.LocalizeFailStatus(&code):
+		//nolint:exhaustive
+		switch code {
+		case apemanager.StatusAPEManagerAccessDenied:
+			decoder = new(APEManagerAccessDenied)
+		}
 	}
 
 	if decoder == nil {

client/status/v2_test.go

@@ -125,6 +125,12 @@ func TestToStatusV2(t *testing.T) {
 			}),
 			codeV2: 4097,
 		},
+		{
+			status: (statusConstructor)(func() apistatus.Status {
+				return new(apistatus.APEManagerAccessDenied)
+			}),
+			codeV2: 5120,
+		},
 		{
 			status: (statusConstructor)(func() apistatus.Status {
 				return new(apistatus.NodeUnderMaintenance)
@@ -278,6 +284,12 @@ func TestFromStatusV2(t *testing.T) {
 			}),
 			codeV2: 4097,
 		},
+		{
+			status: (statusConstructor)(func() apistatus.Status {
+				return new(apistatus.APEManagerAccessDenied)
+			}),
+			codeV2: 5120,
+		},
 		{
 			status: (statusConstructor)(func() apistatus.Status {
 				return new(apistatus.NodeUnderMaintenance)

container/container.go

@@ -355,7 +355,7 @@ func (x Container) IterateAttributes(f func(key, val string)) {
 func (x Container) IterateUserAttributes(f func(key, val string)) {
 	attrs := x.v2.GetAttributes()
 	for _, attr := range attrs {
-		var key = attr.GetKey()
+		key := attr.GetKey()
 		if !strings.HasPrefix(key, container.SysAttributePrefix) &&
 			!strings.HasPrefix(key, container.SysAttributePrefixNeoFS) {
 			f(key, attr.GetValue())

container/container_test.go

@@ -78,7 +78,7 @@ func TestContainer_Owner(t *testing.T) {
 
 	val = containertest.Container()
 
-	owner := *usertest.ID()
+	owner := usertest.ID()
 
 	val.SetOwner(owner)
 

container/size.go

@@ -1,104 +0,0 @@
-package container
-
-import (
-	"errors"
-	"fmt"
-
-	"git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/container"
-	"git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/refs"
-	cid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/container/id"
-)
-
-// SizeEstimation groups information about estimation of the size of the data
-// stored in the FrostFS container.
-//
-// SizeEstimation is mutually compatible with git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/container.UsedSpaceAnnouncement
-// message. See ReadFromV2 / WriteToV2 methods.
-type SizeEstimation struct {
-	m container.UsedSpaceAnnouncement
-}
-
-// ReadFromV2 reads SizeEstimation from the container.UsedSpaceAnnouncement message.
-// Checks if the message conforms to FrostFS API V2 protocol.
-//
-// See also WriteToV2.
-func (x *SizeEstimation) ReadFromV2(m container.UsedSpaceAnnouncement) error {
-	cnrV2 := m.GetContainerID()
-	if cnrV2 == nil {
-		return errors.New("missing container")
-	}
-
-	var cnr cid.ID
-
-	err := cnr.ReadFromV2(*cnrV2)
-	if err != nil {
-		return fmt.Errorf("invalid container: %w", err)
-	}
-
-	x.m = m
-
-	return nil
-}
-
-// WriteToV2 writes SizeEstimation into the container.UsedSpaceAnnouncement message.
-// The message MUST NOT be nil.
-//
-// See also ReadFromV2.
-func (x SizeEstimation) WriteToV2(m *container.UsedSpaceAnnouncement) {
-	*m = x.m
-}
-
-// SetEpoch sets epoch when estimation of the container data size was calculated.
-//
-// See also Epoch.
-func (x *SizeEstimation) SetEpoch(epoch uint64) {
-	x.m.SetEpoch(epoch)
-}
-
-// Epoch return epoch set using SetEpoch.
-//
-// Zero SizeEstimation represents estimation in zero epoch.
-func (x SizeEstimation) Epoch() uint64 {
-	return x.m.GetEpoch()
-}
-
-// SetContainer specifies the container for which the amount of data is estimated.
-// Required by the FrostFS API protocol.
-//
-// See also Container.
-func (x *SizeEstimation) SetContainer(cnr cid.ID) {
-	var cidV2 refs.ContainerID
-	cnr.WriteToV2(&cidV2)
-
-	x.m.SetContainerID(&cidV2)
-}
-
-// Container returns container set using SetContainer.
-//
-// Zero SizeEstimation is not bound to any container (returns zero) which is
-// incorrect according to FrostFS API protocol.
-func (x SizeEstimation) Container() (res cid.ID) {
-	m := x.m.GetContainerID()
-	if m != nil {
-		err := res.ReadFromV2(*m)
-		if err != nil {
-			panic(fmt.Errorf("unexpected error from cid.ID.ReadFromV2: %w", err))
-		}
-	}
-
-	return
-}
-
-// SetValue sets estimated amount of data (in bytes) in the specified container.
-//
-// See also Value.
-func (x *SizeEstimation) SetValue(value uint64) {
-	x.m.SetUsedSpace(value)
-}
-
-// Value returns data size estimation set using SetValue.
-//
-// Zero SizeEstimation has zero value.
-func (x SizeEstimation) Value() uint64 {
-	return x.m.GetUsedSpace()
-}

container/size_test.go

@@ -1,94 +0,0 @@
-package container_test
-
-import (
-	"crypto/sha256"
-	"testing"
-
-	v2container "git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/container"
-	"git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/refs"
-	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/container"
-	cid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/container/id"
-	cidtest "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/container/id/test"
-	"github.com/stretchr/testify/require"
-)
-
-func TestSizeEstimation_Epoch(t *testing.T) {
-	var val container.SizeEstimation
-
-	require.Zero(t, val.Epoch())
-
-	const epoch = 123
-
-	val.SetEpoch(epoch)
-	require.EqualValues(t, epoch, val.Epoch())
-
-	var msg v2container.UsedSpaceAnnouncement
-	val.WriteToV2(&msg)
-
-	require.EqualValues(t, epoch, msg.GetEpoch())
-}
-
-func TestSizeEstimation_Container(t *testing.T) {
-	var val container.SizeEstimation
-
-	require.Zero(t, val.Container())
-
-	cnr := cidtest.ID()
-
-	val.SetContainer(cnr)
-	require.True(t, val.Container().Equals(cnr))
-
-	var msg v2container.UsedSpaceAnnouncement
-	val.WriteToV2(&msg)
-
-	var msgCnr refs.ContainerID
-	cnr.WriteToV2(&msgCnr)
-
-	require.Equal(t, &msgCnr, msg.GetContainerID())
-}
-
-func TestSizeEstimation_Value(t *testing.T) {
-	var val container.SizeEstimation
-
-	require.Zero(t, val.Value())
-
-	const value = 876
-
-	val.SetValue(value)
-	require.EqualValues(t, value, val.Value())
-
-	var msg v2container.UsedSpaceAnnouncement
-	val.WriteToV2(&msg)
-
-	require.EqualValues(t, value, msg.GetUsedSpace())
-}
-
-func TestSizeEstimation_ReadFromV2(t *testing.T) {
-	const epoch = 654
-	const value = 903
-	var cnrMsg refs.ContainerID
-
-	var msg v2container.UsedSpaceAnnouncement
-
-	var val container.SizeEstimation
-
-	require.Error(t, val.ReadFromV2(msg))
-
-	msg.SetContainerID(&cnrMsg)
-
-	require.Error(t, val.ReadFromV2(msg))
-
-	cnrMsg.SetValue(make([]byte, sha256.Size))
-
-	var cnr cid.ID
-	require.NoError(t, cnr.ReadFromV2(cnrMsg))
-
-	msg.SetEpoch(epoch)
-	msg.SetUsedSpace(value)
-
-	require.NoError(t, val.ReadFromV2(msg))
-
-	require.EqualValues(t, epoch, val.Epoch())
-	require.EqualValues(t, value, val.Value())
-	require.EqualValues(t, cnr, val.Container())
-}

container/test/generate.go

@@ -5,7 +5,6 @@ import (
 
 	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/container"
 	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/container/acl"
-	cidtest "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/container/id/test"
 	netmaptest "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/netmap/test"
 	usertest "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/user/test"
 )
@@ -16,22 +15,13 @@ func Container() (x container.Container) {
 
 	x.Init()
 	x.SetAttribute("some attribute", "value")
-	x.SetOwner(*owner)
+	x.SetOwner(owner)
 	x.SetBasicACL(BasicACL())
 	x.SetPlacementPolicy(netmaptest.PlacementPolicy())
 
 	return x
 }
 
-// SizeEstimation returns random container.SizeEstimation.
-func SizeEstimation() (x container.SizeEstimation) {
-	x.SetContainer(cidtest.ID())
-	x.SetEpoch(rand.Uint64())
-	x.SetValue(rand.Uint64())
-
-	return x
-}
-
 // BasicACL returns random acl.Basic.
 func BasicACL() (x acl.Basic) {
 	x.FromBits(rand.Uint32())

eacl/record.go

@@ -125,7 +125,7 @@ func (r *Record) AddObjectContainerIDFilter(m Match, id cid.ID) {
 }
 
 // AddObjectOwnerIDFilter adds filter by object owner ID.
-func (r *Record) AddObjectOwnerIDFilter(m Match, id *user.ID) {
+func (r *Record) AddObjectOwnerIDFilter(m Match, id user.ID) {
 	r.addObjectReservedFilter(m, fKeyObjOwnerID, id)
 }
 

eacl/record_test.go

@@ -225,14 +225,6 @@ func TestReservedRecords(t *testing.T) {
 			key:   v2acl.FilterObjectType,
 			value: "TOMBSTONE",
 		},
-		{
-			f: func(r *Record) {
-				require.True(t, typ.FromString("STORAGE_GROUP"))
-				r.AddObjectTypeFilter(MatchStringEqual, *typ)
-			},
-			key:   v2acl.FilterObjectType,
-			value: "STORAGE_GROUP",
-		},
 	}
 
 	for n, testCase := range testSuit {

eacl/validator.go

@@ -7,8 +7,7 @@ import (
 // Validator is a tool that calculates
 // the action on a request according
 // to the extended ACL rule table.
-type Validator struct {
-}
+type Validator struct{}
 
 // NewValidator creates and initializes a new Validator using options.
 func NewValidator() *Validator {

go.mod

@@ -1,46 +1,47 @@
 module git.frostfs.info/TrueCloudLab/frostfs-sdk-go
 
-go 1.20
+go 1.21
 
 require (
-	git.frostfs.info/TrueCloudLab/frostfs-api-go/v2 v2.15.1-0.20230802075510-964c3edb3f44
-	git.frostfs.info/TrueCloudLab/frostfs-contract v0.0.0-20230307110621-19a8ef2d02fb
-	git.frostfs.info/TrueCloudLab/frostfs-crypto v0.6.0
+	git.frostfs.info/TrueCloudLab/frostfs-api-go/v2 v2.16.1-0.20240730145254-c27b978770a3
+	git.frostfs.info/TrueCloudLab/frostfs-contract v0.19.3-0.20240621131249-49e5270f673e
 	git.frostfs.info/TrueCloudLab/hrw v1.2.1
 	git.frostfs.info/TrueCloudLab/tzhash v1.8.0
 	github.com/antlr4-go/antlr/v4 v4.13.0
-	github.com/google/uuid v1.3.0
-	github.com/hashicorp/golang-lru/v2 v2.0.2
+	github.com/google/uuid v1.6.0
+	github.com/hashicorp/golang-lru/v2 v2.0.7
+	github.com/klauspost/reedsolomon v1.12.1
 	github.com/mr-tron/base58 v1.2.0
-	github.com/nspcc-dev/neo-go v0.101.2-0.20230601131642-a0117042e8fc
-	github.com/stretchr/testify v1.8.3
-	go.uber.org/zap v1.24.0
-	google.golang.org/grpc v1.55.0
-	google.golang.org/protobuf v1.30.0
+	github.com/nspcc-dev/neo-go v0.106.2
+	github.com/stretchr/testify v1.9.0
+	go.uber.org/zap v1.27.0
+	google.golang.org/grpc v1.62.0
+	google.golang.org/protobuf v1.33.0
+	gopkg.in/yaml.v3 v3.0.1
 )
 
 require (
+	git.frostfs.info/TrueCloudLab/frostfs-crypto v0.6.0 // indirect
 	git.frostfs.info/TrueCloudLab/rfc6979 v0.4.0 // indirect
-	github.com/benbjohnson/clock v1.1.0 // indirect
 	github.com/davecgh/go-spew v1.1.1 // indirect
 	github.com/decred/dcrd/dcrec/secp256k1/v4 v4.2.0 // indirect
 	github.com/golang/protobuf v1.5.3 // indirect
-	github.com/gorilla/websocket v1.5.0 // indirect
-	github.com/hashicorp/golang-lru v0.6.0 // indirect
-	github.com/nspcc-dev/go-ordered-json v0.0.0-20220111165707-25110be27d22 // indirect
-	github.com/nspcc-dev/neo-go/pkg/interop v0.0.0-20230615193820-9185820289ce // indirect
-	github.com/nspcc-dev/rfc6979 v0.2.0 // indirect
+	github.com/golang/snappy v0.0.1 // indirect
+	github.com/gorilla/websocket v1.5.1 // indirect
+	github.com/klauspost/cpuid/v2 v2.2.6 // indirect
+	github.com/nspcc-dev/go-ordered-json v0.0.0-20240301084351-0246b013f8b2 // indirect
+	github.com/nspcc-dev/neo-go/pkg/interop v0.0.0-20240521091047-78685785716d // indirect
+	github.com/nspcc-dev/rfc6979 v0.2.1 // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
+	github.com/syndtr/goleveldb v1.0.1-0.20210305035536-64b5b1c73954 // indirect
 	github.com/twmb/murmur3 v1.1.8 // indirect
-	go.uber.org/atomic v1.10.0 // indirect
-	go.uber.org/goleak v1.2.1 // indirect
+	go.etcd.io/bbolt v1.3.9 // indirect
 	go.uber.org/multierr v1.11.0 // indirect
-	golang.org/x/crypto v0.9.0 // indirect
-	golang.org/x/exp v0.0.0-20230515195305-f3d0a9c9a5cc // indirect
-	golang.org/x/net v0.10.0 // indirect
-	golang.org/x/sync v0.2.0 // indirect
-	golang.org/x/sys v0.8.0 // indirect
-	golang.org/x/text v0.9.0 // indirect
-	google.golang.org/genproto v0.0.0-20230410155749-daa745c078e1 // indirect
-	gopkg.in/yaml.v3 v3.0.1 // indirect
+	golang.org/x/crypto v0.21.0 // indirect
+	golang.org/x/exp v0.0.0-20240222234643-814bf88cf225 // indirect
+	golang.org/x/net v0.23.0 // indirect
+	golang.org/x/sync v0.6.0 // indirect
+	golang.org/x/sys v0.18.0 // indirect
+	golang.org/x/text v0.14.0 // indirect
+	google.golang.org/genproto/googleapis/rpc v0.0.0-20240221002015-b0ce06bbee7c // indirect
 )

go.sum

@@ -1,40 +1,7 @@
-cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
-cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
-cloud.google.com/go v0.38.0/go.mod h1:990N+gfupTy94rShfmMCWGDn0LpTmnzTp2qbd1dvSRU=
-cloud.google.com/go v0.44.1/go.mod h1:iSa0KzasP4Uvy3f1mN/7PiObzGgflwredwwASm/v6AU=
-cloud.google.com/go v0.44.2/go.mod h1:60680Gw3Yr4ikxnPRS/oxxkBccT6SA1yMk63TGekxKY=
-cloud.google.com/go v0.45.1/go.mod h1:RpBamKRgapWJb87xiFSdk4g1CME7QZg3uwTez+TSTjc=
-cloud.google.com/go v0.46.3/go.mod h1:a6bKKbmY7er1mI7TEI4lsAkts/mkhTSZK8w33B4RAg0=
-cloud.google.com/go v0.50.0/go.mod h1:r9sluTvynVuxRIOHXQEHMFffphuXHOMZMycpNR5e6To=
-cloud.google.com/go v0.52.0/go.mod h1:pXajvRH/6o3+F9jDHZWQ5PbGhn+o8w9qiu/CffaVdO4=
-cloud.google.com/go v0.53.0/go.mod h1:fp/UouUEsRkN6ryDKNW/Upv/JBKnv6WDthjR6+vze6M=
-cloud.google.com/go v0.54.0/go.mod h1:1rq2OEkV3YMf6n/9ZvGWI3GWw0VoqH/1x2nd8Is/bPc=
-cloud.google.com/go v0.56.0/go.mod h1:jr7tqZxxKOVYizybht9+26Z/gUq7tiRzu+ACVAMbKVk=
-cloud.google.com/go v0.57.0/go.mod h1:oXiQ6Rzq3RAkkY7N6t3TcE6jE+CIBBbA36lwQ1JyzZs=
-cloud.google.com/go v0.62.0/go.mod h1:jmCYTdRCQuc1PHIIJ/maLInMho30T/Y0M4hTdTShOYc=
-cloud.google.com/go v0.65.0/go.mod h1:O5N8zS7uWy9vkA9vayVHs65eM1ubvY4h553ofrNHObY=
-cloud.google.com/go/bigquery v1.0.1/go.mod h1:i/xbL2UlR5RvWAURpBYZTtm/cXjCha9lbfbpx4poX+o=
-cloud.google.com/go/bigquery v1.3.0/go.mod h1:PjpwJnslEMmckchkHFfq+HTD2DmtT67aNFKH1/VBDHE=
-cloud.google.com/go/bigquery v1.4.0/go.mod h1:S8dzgnTigyfTmLBfrtrhyYhwRxG72rYxvftPBK2Dvzc=
-cloud.google.com/go/bigquery v1.5.0/go.mod h1:snEHRnqQbz117VIFhE8bmtwIDY80NLUZUMb4Nv6dBIg=
-cloud.google.com/go/bigquery v1.7.0/go.mod h1://okPTzCYNXSlb24MZs83e2Do+h+VXtc4gLoIoXIAPc=
-cloud.google.com/go/bigquery v1.8.0/go.mod h1:J5hqkt3O0uAFnINi6JXValWIb1v0goeZM77hZzJN/fQ=
-cloud.google.com/go/datastore v1.0.0/go.mod h1:LXYbyblFSglQ5pkeyhO+Qmw7ukd3C+pD7TKLgZqpHYE=
-cloud.google.com/go/datastore v1.1.0/go.mod h1:umbIZjpQpHh4hmRpGhH4tLFup+FVzqBi1b3c64qFpCk=
-cloud.google.com/go/pubsub v1.0.1/go.mod h1:R0Gpsv3s54REJCy4fxDixWD93lHJMoZTyQ2kNxGRt3I=
-cloud.google.com/go/pubsub v1.1.0/go.mod h1:EwwdRX2sKPjnvnqCa270oGRyludottCI76h+R3AArQw=
-cloud.google.com/go/pubsub v1.2.0/go.mod h1:jhfEVHT8odbXTkndysNHCcx0awwzvfOlguIAii9o8iA=
-cloud.google.com/go/pubsub v1.3.1/go.mod h1:i+ucay31+CNRpDW4Lu78I4xXG+O1r/MAHgjpRVR+TSU=
-cloud.google.com/go/storage v1.0.0/go.mod h1:IhtSnM/ZTZV8YYJWCY8RULGVqBDmpoyjwiyrjsg+URw=
-cloud.google.com/go/storage v1.5.0/go.mod h1:tpKbwo567HUNpVclU5sGELwQWBDZ8gh0ZeosJ0Rtdos=
-cloud.google.com/go/storage v1.6.0/go.mod h1:N7U0C8pVQ/+NIKOBQyamJIeKQKkZ+mxpohlUTyfDhBk=
-cloud.google.com/go/storage v1.8.0/go.mod h1:Wv1Oy7z6Yz3DshWRJFhqM/UCfaWIRTdp0RXyy7KQOVs=
-cloud.google.com/go/storage v1.10.0/go.mod h1:FLPqc6j+Ki4BU591ie1oL6qBQGu2Bl/tZ9ullr3+Kg0=
-dmitri.shuralyov.com/gpu/mtl v0.0.0-20190408044501-666a987793e9/go.mod h1:H6x//7gZCb22OMCxBHrMx7a5I7Hp++hsVxbQ4BYO7hU=
-git.frostfs.info/TrueCloudLab/frostfs-api-go/v2 v2.15.1-0.20230802075510-964c3edb3f44 h1:v6JqBD/VzZx3QSxbaXnUwnnJ1KEYheU4LzLGr3IhsAE=
-git.frostfs.info/TrueCloudLab/frostfs-api-go/v2 v2.15.1-0.20230802075510-964c3edb3f44/go.mod h1:pKJJRLOChW4zDQsAt1e8k/snWKljJtpkiPfxV53ngjI=
-git.frostfs.info/TrueCloudLab/frostfs-contract v0.0.0-20230307110621-19a8ef2d02fb h1:S/TrbOOu9qEXZRZ9/Ddw7crnxbBUQLo68PSzQWYrc9M=
-git.frostfs.info/TrueCloudLab/frostfs-contract v0.0.0-20230307110621-19a8ef2d02fb/go.mod h1:nkR5gaGeez3Zv2SE7aceP0YwxG2FzIB5cGKpQO2vV2o=
+git.frostfs.info/TrueCloudLab/frostfs-api-go/v2 v2.16.1-0.20240730145254-c27b978770a3 h1:BbtF/98HU0nBl4szdDYAV3XadNE5sJ92uSFmNePQmfA=
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netmap/aggregator.go

@@ -1,8 +1,6 @@
 package netmap
 
-import (
-	"sort"
-)
+import "slices"
 
 type (
 	// aggregator can calculate some value across all netmap
@@ -28,7 +26,6 @@ type (
 	}
 
 	meanIQRAgg struct {
-		k   float64
 		arr []float64
 	}
 
@@ -74,12 +71,6 @@ func newMinAgg() aggregator {
 	return new(minAgg)
 }
 
-// newMeanIQRAgg returns an aggregator which
-// computes mean value of values from IQR interval.
-func newMeanIQRAgg() aggregator {
-	return new(meanIQRAgg)
-}
-
 // newReverseMinNorm returns a normalizer which
 // normalize values in range of 0.0 to 1.0 to a minimum value.
 func newReverseMinNorm(min float64) normalizer {
@@ -118,6 +109,10 @@ func (a *minAgg) Compute() float64 {
 	return a.min
 }
 
+func (a *meanIQRAgg) clear() {
+	a.arr = a.arr[:0]
+}
+
 func (a *meanIQRAgg) Add(n float64) {
 	a.arr = append(a.arr, n)
 }
@@ -128,7 +123,7 @@ func (a *meanIQRAgg) Compute() float64 {
 		return 0
 	}
 
-	sort.Slice(a.arr, func(i, j int) bool { return a.arr[i] < a.arr[j] })
+	slices.Sort(a.arr)
 
 	var min, max float64
 
@@ -138,8 +133,7 @@ func (a *meanIQRAgg) Compute() float64 {
 		min, max = a.arr[0], a.arr[l-1]
 	} else {
 		start, end := l/minLn, l*3/minLn-1
-		iqr := a.k * (a.arr[end] - a.arr[start])
-		min, max = a.arr[start]-iqr, a.arr[end]+iqr
+		min, max = a.arr[start], a.arr[end]
 	}
 
 	count := 0
@@ -156,11 +150,7 @@ func (a *meanIQRAgg) Compute() float64 {
 }
 
 func (r *reverseMinNorm) Normalize(w float64) float64 {
-	if w == 0 {
-		return 0
-	}
-
-	return r.min / w
+	return (r.min + 1) / (w + 1)
 }
 
 func (r *sigmoidNorm) Normalize(w float64) float64 {

netmap/bench_test.go

@@ -53,7 +53,6 @@ func BenchmarkNetmap_ContainerNodes(b *testing.B) {
 					b.Fatal(err)
 				}
 			}
-
 		})
 	}
 }

netmap/json_tests/cbf_default.json

@@ -1,99 +0,0 @@
-{
-  "name": "default CBF is 3",
-  "nodes": [
-    {
-      "attributes": [
-        {
-          "key": "Location",
-          "value": "Europe"
-        },
-        {
-          "key": "Country",
-          "value": "RU"
-        },
-        {
-          "key": "City",
-          "value": "St.Petersburg"
-        }
-      ]
-    },
-    {
-      "attributes": [
-        {
-          "key": "Location",
-          "value": "Europe"
-        },
-        {
-          "key": "Country",
-          "value": "RU"
-        },
-        {
-          "key": "City",
-          "value": "Moscow"
-        }
-      ]
-    },
-    {
-      "attributes": [
-        {
-          "key": "Location",
-          "value": "Europe"
-        },
-        {
-          "key": "Country",
-          "value": "DE"
-        },
-        {
-          "key": "City",
-          "value": "Berlin"
-        }
-      ]
-    },
-    {
-      "attributes": [
-        {
-          "key": "Location",
-          "value": "Europe"
-        },
-        {
-          "key": "Country",
-          "value": "FR"
-        },
-        {
-          "key": "City",
-          "value": "Paris"
-        }
-      ]
-    }
-  ],
-  "tests": {
-    "set default CBF": {
-      "policy": {
-        "replicas": [
-          {
-            "count": 1,
-            "selector": "EU"
-          }
-        ],
-        "containerBackupFactor": 0,
-        "selectors": [
-          {
-            "name": "EU",
-            "count": 1,
-            "clause": "SAME",
-            "attribute": "Location",
-            "filter": "*"
-          }
-        ],
-        "filters": []
-      },
-      "result": [
-        [
-          0,
-          1,
-          2
-        ]
-      ]
-    }
-  }
-}

netmap/json_tests/cbf_minimal.json

@@ -1,99 +0,0 @@
-{
-  "name": "Real node count multiplier is in range [1, specified CBF]",
-  "nodes": [
-    {
-      "attributes": [
-        {
-          "key": "ID",
-          "value": "1"
-        },
-        {
-          "key": "Country",
-          "value": "DE"
-        }
-      ]
-    },
-    {
-      "attributes": [
-        {
-          "key": "ID",
-          "value": "2"
-        },
-        {
-          "key": "Country",
-          "value": "DE"
-        }
-      ]
-    },
-    {
-      "attributes": [
-        {
-          "key": "ID",
-          "value": "3"
-        },
-        {
-          "key": "Country",
-          "value": "DE"
-        }
-      ]
-    }
-  ],
-  "tests": {
-    "select 2, CBF is 2": {
-      "policy": {
-        "replicas": [
-          {
-            "count": 1,
-            "selector": "X"
-          }
-        ],
-        "containerBackupFactor": 2,
-        "selectors": [
-          {
-            "name": "X",
-            "count": 2,
-            "clause": "SAME",
-            "attribute": "Country",
-            "filter": "*"
-          }
-        ],
-        "filters": []
-      },
-      "result": [
-        [
-          0,
-          1,
-          2
-        ]
-      ]
-    },
-    "select 3, CBF is 2": {
-      "policy": {
-        "replicas": [
-          {
-            "count": 1,
-            "selector": "X"
-          }
-        ],
-        "containerBackupFactor": 2,
-        "selectors": [
-          {
-            "name": "X",
-            "count": 3,
-            "clause": "SAME",
-            "attribute": "Country",
-            "filter": "*"
-          }
-        ],
-        "filters": []
-      },
-      "result": [
-        [
-          0,
-          1,
-          2
-        ]
-      ]
-    }
-  }
-}

netmap/json_tests/cbf_requirements.json

@@ -1,155 +0,0 @@
-{
-  "name": "CBF requirements",
-  "nodes": [
-    {
-      "attributes": [
-        {
-          "key": "ID",
-          "value": "1"
-        },
-        {
-          "key": "Attr",
-          "value": "Same"
-        }
-      ]
-    },
-    {
-      "attributes": [
-        {
-          "key": "ID",
-          "value": "2"
-        },
-        {
-          "key": "Attr",
-          "value": "Same"
-        }
-      ]
-    },
-    {
-      "attributes": [
-        {
-          "key": "ID",
-          "value": "3"
-        },
-        {
-          "key": "Attr",
-          "value": "Same"
-        }
-      ]
-    },
-    {
-      "attributes": [
-        {
-          "key": "ID",
-          "value": "4"
-        },
-        {
-          "key": "Attr",
-          "value": "Same"
-        }
-      ]
-    }
-  ],
-  "tests": {
-    "default CBF, no selector": {
-      "policy": {
-        "replicas": [
-          {
-            "count": 2,
-            "selector": ""
-          }
-        ],
-        "containerBackupFactor": 0,
-        "selectors": [],
-        "filters": []
-      },
-      "result": [
-        [
-          0,
-          2,
-          1,
-          3
-        ]
-      ]
-    },
-    "explicit CBF, no selector": {
-      "policy": {
-        "replicas": [
-          {
-            "count": 2,
-            "selector": ""
-          }
-        ],
-        "containerBackupFactor": 3,
-        "selectors": [],
-        "filters": []
-      },
-      "result": [
-        [
-          0,
-          2,
-          1,
-          3
-        ]
-      ]
-    },
-    "select distinct, weak CBF": {
-      "policy": {
-        "replicas": [
-          {
-            "count": 2,
-            "selector": "X"
-          }
-        ],
-        "containerBackupFactor": 3,
-        "selectors": [
-          {
-            "name": "X",
-            "count": 2,
-            "clause": "DISTINCT",
-            "attribute": "",
-            "filter": "*"
-          }
-        ],
-        "filters": []
-      },
-      "result": [
-        [
-          0,
-          2,
-          1,
-          3
-        ]
-      ]
-    },
-    "select same, weak CBF": {
-      "policy": {
-        "replicas": [
-          {
-            "count": 2,
-            "selector": "X"
-          }
-        ],
-        "containerBackupFactor": 3,
-        "selectors": [
-          {
-            "name": "X",
-            "count": 2,
-            "clause": "SAME",
-            "attribute": "Attr",
-            "filter": "*"
-          }
-        ],
-        "filters": []
-      },
-      "result": [
-        [
-          0,
-          1,
-          2,
-          3
-        ]
-      ]
-    }
-  }
-}

netmap/json_tests/filter_complex.json

@@ -1,383 +0,0 @@
-{
-  "name": "compound filter",
-  "nodes": [
-    {
-      "attributes": [
-        {
-          "key": "Storage",
-          "value": "SSD"
-        },
-        {
-          "key": "Rating",
-          "value": "10"
-        },
-        {
-          "key": "IntField",
-          "value": "100"
-        },
-        {
-          "key": "Param",
-          "value": "Value1"
-        }
-      ]
-    }
-  ],
-  "tests": {
-    "good": {
-      "policy": {
-        "replicas": [
-          {
-            "count": 1,
-            "selector": "S"
-          }
-        ],
-        "containerBackupFactor": 1,
-        "selectors": [
-          {
-            "name": "S",
-            "count": 1,
-            "clause": "DISTINCT",
-            "attribute": "",
-            "filter": "Main"
-          }
-        ],
-        "filters": [
-          {
-            "name": "StorageSSD",
-            "key": "Storage",
-            "op": "EQ",
-            "value": "SSD",
-            "filters": []
-          },
-          {
-            "name": "GoodRating",
-            "key": "Rating",
-            "op": "GE",
-            "value": "4",
-            "filters": []
-          },
-          {
-            "name": "Main",
-            "key": "",
-            "op": "AND",
-            "value": "",
-            "filters": [
-              {
-                "name": "StorageSSD",
-                "key": "",
-                "op": "OPERATION_UNSPECIFIED",
-                "value": "",
-                "filters": []
-              },
-              {
-                "name": "",
-                "key": "IntField",
-                "op": "LT",
-                "value": "123",
-                "filters": []
-              },
-              {
-                "name": "GoodRating",
-                "key": "",
-                "op": "OPERATION_UNSPECIFIED",
-                "value": "",
-                "filters": []
-              },
-              {
-                "name": "",
-                "key": "",
-                "op": "OR",
-                "value": "",
-                "filters": [
-                  {
-                    "name": "",
-                    "key": "Param",
-                    "op": "EQ",
-                    "value": "Value1",
-                    "filters": []
-                  },
-                  {
-                    "name": "",
-                    "key": "Param",
-                    "op": "EQ",
-                    "value": "Value2",
-                    "filters": []
-                  }
-                ]
-              }
-            ]
-          }
-        ]
-      },
-      "result": [
-        [
-          0
-        ]
-      ]
-    },
-    "bad storage type": {
-      "policy": {
-        "replicas": [
-          {
-            "count": 1,
-            "selector": "S"
-          }
-        ],
-        "containerBackupFactor": 1,
-        "selectors": [
-          {
-            "name": "S",
-            "count": 1,
-            "clause": "DISTINCT",
-            "attribute": "",
-            "filter": "Main"
-          }
-        ],
-        "filters": [
-          {
-            "name": "StorageSSD",
-            "key": "Storage",
-            "op": "EQ",
-            "value": "HDD",
-            "filters": []
-          },
-          {
-            "name": "GoodRating",
-            "key": "Rating",
-            "op": "GE",
-            "value": "4",
-            "filters": []
-          },
-          {
-            "name": "Main",
-            "key": "",
-            "op": "AND",
-            "value": "",
-            "filters": [
-              {
-                "name": "StorageSSD",
-                "key": "",
-                "op": "OPERATION_UNSPECIFIED",
-                "value": "",
-                "filters": []
-              },
-              {
-                "name": "",
-                "key": "IntField",
-                "op": "LT",
-                "value": "123",
-                "filters": []
-              },
-              {
-                "name": "GoodRating",
-                "key": "",
-                "op": "OPERATION_UNSPECIFIED",
-                "value": "",
-                "filters": []
-              },
-              {
-                "name": "",
-                "key": "",
-                "op": "OR",
-                "value": "",
-                "filters": [
-                  {
-                    "name": "",
-                    "key": "Param",
-                    "op": "EQ",
-                    "value": "Value1",
-                    "filters": []
-                  },
-                  {
-                    "name": "",
-                    "key": "Param",
-                    "op": "EQ",
-                    "value": "Value2",
-                    "filters": []
-                  }
-                ]
-              }
-            ]
-          }
-        ]
-      },
-      "error": "not enough nodes"
-    },
-    "bad rating": {
-      "policy": {
-        "replicas": [
-          {
-            "count": 1,
-            "selector": "S"
-          }
-        ],
-        "containerBackupFactor": 1,
-        "selectors": [
-          {
-            "name": "S",
-            "count": 1,
-            "clause": "DISTINCT",
-            "attribute": "",
-            "filter": "Main"
-          }
-        ],
-        "filters": [
-          {
-            "name": "StorageSSD",
-            "key": "Storage",
-            "op": "EQ",
-            "value": "SSD",
-            "filters": []
-          },
-          {
-            "name": "GoodRating",
-            "key": "Rating",
-            "op": "GE",
-            "value": "15",
-            "filters": []
-          },
-          {
-            "name": "Main",
-            "key": "",
-            "op": "AND",
-            "value": "",
-            "filters": [
-              {
-                "name": "StorageSSD",
-                "key": "",
-                "op": "OPERATION_UNSPECIFIED",
-                "value": "",
-                "filters": []
-              },
-              {
-                "name": "",
-                "key": "IntField",
-                "op": "LT",
-                "value": "123",
-                "filters": []
-              },
-              {
-                "name": "GoodRating",
-                "key": "",
-                "op": "OPERATION_UNSPECIFIED",
-                "value": "",
-                "filters": []
-              },
-              {
-                "name": "",
-                "key": "",
-                "op": "OR",
-                "value": "",
-                "filters": [
-                  {
-                    "name": "",
-                    "key": "Param",
-                    "op": "EQ",
-                    "value": "Value1",
-                    "filters": []
-                  },
-                  {
-                    "name": "",
-                    "key": "Param",
-                    "op": "EQ",
-                    "value": "Value2",
-                    "filters": []
-                  }
-                ]
-              }
-            ]
-          }
-        ]
-      },
-      "error": "not enough nodes"
-    },
-    "bad param": {
-      "policy": {
-        "replicas": [
-          {
-            "count": 1,
-            "selector": "S"
-          }
-        ],
-        "containerBackupFactor": 1,
-        "selectors": [
-          {
-            "name": "S",
-            "count": 1,
-            "clause": "DISTINCT",
-            "attribute": "",
-            "filter": "Main"
-          }
-        ],
-        "filters": [
-          {
-            "name": "StorageSSD",
-            "key": "Storage",
-            "op": "EQ",
-            "value": "SSD",
-            "filters": []
-          },
-          {
-            "name": "GoodRating",
-            "key": "Rating",
-            "op": "GE",
-            "value": "4",
-            "filters": []
-          },
-          {
-            "name": "Main",
-            "key": "",
-            "op": "AND",
-            "value": "",
-            "filters": [
-              {
-                "name": "StorageSSD",
-                "key": "",
-                "op": "OPERATION_UNSPECIFIED",
-                "value": "",
-                "filters": []
-              },
-              {
-                "name": "",
-                "key": "IntField",
-                "op": "LT",
-                "value": "123",
-                "filters": []
-              },
-              {
-                "name": "GoodRating",
-                "key": "",
-                "op": "OPERATION_UNSPECIFIED",
-                "value": "",
-                "filters": []
-              },
-              {
-                "name": "",
-                "key": "",
-                "op": "OR",
-                "value": "",
-                "filters": [
-                  {
-                    "name": "",
-                    "key": "Param",
-                    "op": "EQ",
-                    "value": "Value0",
-                    "filters": []
-                  },
-                  {
-                    "name": "",
-                    "key": "Param",
-                    "op": "EQ",
-                    "value": "Value2",
-                    "filters": []
-                  }
-                ]
-              }
-            ]
-          }
-        ]
-      },
-      "error": "not enough nodes"
-    }
-  }
-}

netmap/json_tests/filter_invalid_integer.json

@@ -1,83 +0,0 @@
-{
-  "name": "invalid integer field",
-  "nodes": [
-    {
-      "attributes": [
-        {
-          "key": "IntegerField",
-          "value": "true"
-        }
-      ]
-    },
-    {
-      "attributes": [
-        {
-          "key": "IntegerField",
-          "value": "str"
-        }
-      ]
-    }
-  ],
-  "tests": {
-    "empty string is not casted to 0": {
-      "policy": {
-        "replicas": [
-          {
-            "count": 1,
-            "selector": "S"
-          }
-        ],
-        "containerBackupFactor": 1,
-        "selectors": [
-          {
-            "name": "S",
-            "count": 1,
-            "clause": "DISTINCT",
-            "attribute": "",
-            "filter": "Main"
-          }
-        ],
-        "filters": [
-          {
-            "name": "Main",
-            "key": "IntegerField",
-            "op": "LE",
-            "value": "8",
-            "filters": []
-          }
-        ]
-      },
-      "error": "not enough nodes"
-    },
-    "non-empty string is not casted to a number": {
-      "policy": {
-        "replicas": [
-          {
-            "count": 1,
-            "selector": "S"
-          }
-        ],
-        "containerBackupFactor": 1,
-        "selectors": [
-          {
-            "name": "S",
-            "count": 1,
-            "clause": "DISTINCT",
-            "attribute": "",
-            "filter": "Main"
-          }
-        ],
-        "filters": [
-          {
-            "name": "Main",
-            "key": "IntegerField",
-            "op": "GE",
-            "value": "0",
-            "filters": []
-          }
-        ]
-      },
-      "error": "not enough nodes"
-    }
-  }
-}

netmap/json_tests/filter_simple.json

@@ -1,403 +0,0 @@
-{
-  "name": "single-op filters",
-  "nodes": [
-    {
-      "attributes": [
-        {
-          "key": "Rating",
-          "value": "4"
-        },
-        {
-          "key": "Country",
-          "value": "Germany"
-        }
-      ]
-    }
-  ],
-  "tests": {
-    "GE true": {
-      "policy": {
-        "replicas": [
-          {
-            "count": 1,
-            "selector": "S"
-          }
-        ],
-        "containerBackupFactor": 1,
-        "selectors": [
-          {
-            "name": "S",
-            "count": 1,
-            "clause": "DISTINCT",
-            "attribute": "",
-            "filter": "Main"
-          }
-        ],
-        "filters": [
-          {
-            "name": "Main",
-            "key": "Rating",
-            "op": "GE",
-            "value": "4",
-            "filters": []
-          }
-        ]
-      },
-      "result": [
-        [
-          0
-        ]
-      ]
-    },
-    "GE false": {
-      "policy": {
-        "replicas": [
-          {
-            "count": 1,
-            "selector": "S"
-          }
-        ],
-        "containerBackupFactor": 1,
-        "selectors": [
-          {
-            "name": "S",
-            "count": 1,
-            "clause": "DISTINCT",
-            "attribute": "",
-            "filter": "Main"
-          }
-        ],
-        "filters": [
-          {
-            "name": "Main",
-            "key": "Rating",
-            "op": "GE",
-            "value": "5",
-            "filters": []
-          }
-        ]
-      },
-      "error": "not enough nodes"
-    },
-    "GT true": {
-      "policy": {
-        "replicas": [
-          {
-            "count": 1,
-            "selector": "S"
-          }
-        ],
-        "containerBackupFactor": 1,
-        "selectors": [
-          {
-            "name": "S",
-            "count": 1,
-            "clause": "DISTINCT",
-            "attribute": "",
-            "filter": "Main"
-          }
-        ],
-        "filters": [
-          {
-            "name": "Main",
-            "key": "Rating",
-            "op": "GT",
-            "value": "3",
-            "filters": []
-          }
-        ]
-      },
-      "result": [
-        [
-          0
-        ]
-      ]
-    },
-    "GT false": {
-      "policy": {
-        "replicas": [
-          {
-            "count": 1,
-            "selector": "S"
-          }
-        ],
-        "containerBackupFactor": 1,
-        "selectors": [
-          {
-            "name": "S",
-            "count": 1,
-            "clause": "DISTINCT",
-            "attribute": "",
-            "filter": "Main"
-          }
-        ],
-        "filters": [
-          {
-            "name": "Main",
-            "key": "Rating",
-            "op": "GT",
-            "value": "4",
-            "filters": []
-          }
-        ]
-      },
-      "error": "not enough nodes"
-    },
-    "LE true": {
-      "policy": {
-        "replicas": [
-          {
-            "count": 1,
-            "selector": "S"
-          }
-        ],
-        "containerBackupFactor": 1,
-        "selectors": [
-          {
-            "name": "S",
-            "count": 1,
-            "clause": "DISTINCT",
-            "attribute": "",
-            "filter": "Main"
-          }
-        ],
-        "filters": [
-          {
-            "name": "Main",
-            "key": "Rating",
-            "op": "LE",
-            "value": "4",
-            "filters": []
-          }
-        ]
-      },
-      "result": [
-        [
-          0
-        ]
-      ]
-    },
-    "LE false": {
-      "policy": {
-        "replicas": [
-          {
-            "count": 1,
-            "selector": "S"
-          }
-        ],
-        "containerBackupFactor": 1,
-        "selectors": [
-          {
-            "name": "S",
-            "count": 1,
-            "clause": "DISTINCT",
-            "attribute": "",
-            "filter": "Main"
-          }
-        ],
-        "filters": [
-          {
-            "name": "Main",
-            "key": "Rating",
-            "op": "LE",
-            "value": "3",
-            "filters": []
-          }
-        ]
-      },
-      "error": "not enough nodes"
-    },
-    "LT true": {
-      "policy": {
-        "replicas": [
-          {
-            "count": 1,
-            "selector": "S"
-          }
-        ],
-        "containerBackupFactor": 1,
-        "selectors": [
-          {
-            "name": "S",
-            "count": 1,
-            "clause": "DISTINCT",
-            "attribute": "",
-            "filter": "Main"
-          }
-        ],
-        "filters": [
-          {
-            "name": "Main",
-            "key": "Rating",
-            "op": "LT",
-            "value": "5",
-            "filters": []
-          }
-        ]
-      },
-      "result": [
-        [
-          0
-        ]
-      ]
-    },
-    "LT false": {
-      "policy": {
-        "replicas": [
-          {
-            "count": 1,
-            "selector": "S"
-          }
-        ],
-        "containerBackupFactor": 1,
-        "selectors": [
-          {
-            "name": "S",
-            "count": 1,
-            "clause": "DISTINCT",
-            "attribute": "",
-            "filter": "Main"
-          }
-        ],
-        "filters": [
-          {
-            "name": "Main",
-            "key": "Rating",
-            "op": "LT",
-            "value": "4",
-            "filters": []
-          }
-        ]
-      },
-      "error": "not enough nodes"
-    },
-    "EQ true": {
-      "policy": {
-        "replicas": [
-          {
-            "count": 1,
-            "selector": "S"
-          }
-        ],
-        "containerBackupFactor": 1,
-        "selectors": [
-          {
-            "name": "S",
-            "count": 1,
-            "clause": "DISTINCT",
-            "attribute": "",
-            "filter": "Main"
-          }
-        ],
-        "filters": [
-          {
-            "name": "Main",
-            "key": "Country",
-            "op": "EQ",
-            "value": "Germany",
-            "filters": []
-          }
-        ]
-      },
-      "result": [
-        [
-          0
-        ]
-      ]
-    },
-    "EQ false": {
-      "policy": {
-        "replicas": [
-          {
-            "count": 1,
-            "selector": "S"
-          }
-        ],
-        "containerBackupFactor": 1,
-        "selectors": [
-          {
-            "name": "S",
-            "count": 1,
-            "clause": "DISTINCT",
-            "attribute": "",
-            "filter": "Main"
-          }
-        ],
-        "filters": [
-          {
-            "name": "Main",
-            "key": "Country",
-            "op": "EQ",
-            "value": "China",
-            "filters": []
-          }
-        ]
-      },
-      "error": "not enough nodes"
-    },
-    "NE true": {
-      "policy": {
-        "replicas": [
-          {
-            "count": 1,
-            "selector": "S"
-          }
-        ],
-        "containerBackupFactor": 1,
-        "selectors": [
-          {
-            "name": "S",
-            "count": 1,
-            "clause": "DISTINCT",
-            "attribute": "",
-            "filter": "Main"
-          }
-        ],
-        "filters": [
-          {
-            "name": "Main",
-            "key": "Country",
-            "op": "NE",
-            "value": "France",
-            "filters": []
-          }
-        ]
-      },
-      "result": [
-        [
-          0
-        ]
-      ]
-    },
-    "NE false": {
-      "policy": {
-        "replicas": [
-          {
-            "count": 1,
-            "selector": "S"
-          }
-        ],
-        "containerBackupFactor": 1,
-        "selectors": [
-          {
-            "name": "S",
-            "count": 1,
-            "clause": "DISTINCT",
-            "attribute": "",
-            "filter": "Main"
-          }
-        ],
-        "filters": [
-          {
-            "name": "Main",
-            "key": "Country",
-            "op": "NE",
-            "value": "Germany",
-            "filters": []
-          }
-        ]
-      },
-      "error": "not enough nodes"
-    }
-  }
-}

netmap/json_tests/hrw_sort.json

@@ -1,165 +0,0 @@
-{
-  "name": "HRW ordering",
-  "nodes": [
-    {
-      "attributes": [
-        {
-          "key": "Country",
-          "value": "Germany"
-        },
-        {
-          "key": "Price",
-          "value": "2"
-        },
-        {
-          "key": "Capacity",
-          "value": "10000"
-        }
-      ]
-    },
-    {
-      "attributes": [
-        {
-          "key": "Country",
-          "value": "Germany"
-        },
-        {
-          "key": "Price",
-          "value": "4"
-        },
-        {
-          "key": "Capacity",
-          "value": "1"
-        }
-      ]
-    },
-    {
-      "attributes": [
-        {
-          "key": "Country",
-          "value": "France"
-        },
-        {
-          "key": "Price",
-          "value": "3"
-        },
-        {
-          "key": "Capacity",
-          "value": "10"
-        }
-      ]
-    },
-    {
-      "attributes": [
-        {
-          "key": "Country",
-          "value": "Russia"
-        },
-        {
-          "key": "Price",
-          "value": "2"
-        },
-        {
-          "key": "Capacity",
-          "value": "10000"
-        }
-      ]
-    },
-    {
-      "attributes": [
-        {
-          "key": "Country",
-          "value": "Russia"
-        },
-        {
-          "key": "Price",
-          "value": "1"
-        },
-        {
-          "key": "Capacity",
-          "value": "10000"
-        }
-      ]
-    },
-    {
-      "attributes": [
-        {
-          "key": "Country",
-          "value": "Russia"
-        },
-        {
-          "key": "Capacity",
-          "value": "10000"
-        }
-      ]
-    },
-    {
-      "attributes": [
-        {
-          "key": "Country",
-          "value": "France"
-        },
-        {
-          "key": "Price",
-          "value": "100"
-        },
-        {
-          "key": "Capacity",
-          "value": "1"
-        }
-      ]
-    },
-    {
-      "attributes": [
-        {
-          "key": "Country",
-          "value": "France"
-        },
-        {
-          "key": "Price",
-          "value": "7"
-        },
-        {
-          "key": "Capacity",
-          "value": "10000"
-        }
-      ]
-    },
-    {
-      "attributes": [
-        {
-          "key": "Country",
-          "value": "Russia"
-        },
-        {
-          "key": "Price",
-          "value": "2"
-        },
-        {
-          "key": "Capacity",
-          "value": "1"
-        }
-      ]
-    }
-  ],
-  "tests": {
-    "select 3 nodes in 3 distinct countries, same placement": {
-      "policy": {"replicas":[{"count":1,"selector":"Main"}],"containerBackupFactor":1,"selectors":[{"name":"Main","count":3,"clause":"DISTINCT","attribute":"Country","filter":"*"}],"filters":[]},
-      "pivot": "Y29udGFpbmVySUQ=",
-      "result": [[0, 2, 3]],
-      "placement": {
-        "pivot": "b2JqZWN0SUQ=",
-        "result": [[0, 2, 3]]
-      }
-    },
-    "select 6 nodes in 3 distinct countries, different placement": {
-      "policy": {"replicas":[{"count":1,"selector":"Main"}],"containerBackupFactor":2,"selectors":[{"name":"Main","count":3,"clause":"DISTINCT","attribute":"Country","filter":"*"}],"filters":[]},
-      "pivot": "Y29udGFpbmVySUQ=",
-      "result": [[0, 1, 2, 6, 3, 4]],
-      "placement": {
-        "pivot": "b2JqZWN0SUQ=",
-        "result": [[0, 1, 2, 6, 3, 4]]
-      }
-    }
-  }
-}

netmap/json_tests/issue213.json

@@ -1,108 +0,0 @@
-{
-  "name": "unnamed selector (nspcc-dev/neofs-api-go#213)",
-  "nodes": [
-    {
-      "attributes": [
-        {
-          "key": "Location",
-          "value": "Europe"
-        },
-        {
-          "key": "Country",
-          "value": "Russia"
-        },
-        {
-          "key": "City",
-          "value": "Moscow"
-        }
-      ]
-    },
-    {
-      "attributes": [
-        {
-          "key": "Location",
-          "value": "Europe"
-        },
-        {
-          "key": "Country",
-          "value": "Russia"
-        },
-        {
-          "key": "City",
-          "value": "Saint-Petersburg"
-        }
-      ]
-    },
-    {
-      "attributes": [
-        {
-          "key": "Location",
-          "value": "Europe"
-        },
-        {
-          "key": "Country",
-          "value": "Sweden"
-        },
-        {
-          "key": "City",
-          "value": "Stockholm"
-        }
-      ]
-    },
-    {
-      "attributes": [
-        {
-          "key": "Location",
-          "value": "Europe"
-        },
-        {
-          "key": "Country",
-          "value": "Finalnd"
-        },
-        {
-          "key": "City",
-          "value": "Helsinki"
-        }
-      ]
-    }
-  ],
-  "tests": {
-    "test": {
-      "policy": {
-        "replicas": [
-          {
-            "count": 4,
-            "selector": ""
-          }
-        ],
-        "containerBackupFactor": 1,
-        "selectors": [
-          {
-            "name": "",
-            "count": 4,
-            "clause": "DISTINCT",
-            "attribute": "",
-            "filter": "LOC_EU"
-          }
-        ],
-        "filters": [
-          {
-            "name": "LOC_EU",
-            "key": "Location",
-            "op": "EQ",
-            "value": "Europe",
-            "filters": []
-          }
-        ]
-      },
-      "result": [
-        [
-          0,
-          1,
-          2,
-          3
-        ]
-      ]
-    }
-  }
-}

netmap/json_tests/many_selects.json

@@ -1,192 +0,0 @@
-{
-  "name": "single-op filters",
-  "nodes": [
-    {
-      "attributes": [
-        {
-          "key": "Country",
-          "value": "Russia"
-        },
-        {
-          "key": "Rating",
-          "value": "1"
-        },
-        {
-          "key": "City",
-          "value": "SPB"
-        }
-      ]
-    },
-    {
-      "attributes": [
-        {
-          "key": "Country",
-          "value": "Germany"
-        },
-        {
-          "key": "Rating",
-          "value": "5"
-        },
-        {
-          "key": "City",
-          "value": "Berlin"
-        }
-      ]
-    },
-    {
-      "attributes": [
-        {
-          "key": "Country",
-          "value": "Russia"
-        },
-        {
-          "key": "Rating",
-          "value": "6"
-        },
-        {
-          "key": "City",
-          "value": "Moscow"
-        }
-      ]
-    },
-    {
-      "attributes": [
-        {
-          "key": "Country",
-          "value": "France"
-        },
-        {
-          "key": "Rating",
-          "value": "4"
-        },
-        {
-          "key": "City",
-          "value": "Paris"
-        }
-      ]
-    },
-    {
-      "attributes": [
-        {
-          "key": "Country",
-          "value": "France"
-        },
-        {
-          "key": "Rating",
-          "value": "1"
-        },
-        {
-          "key": "City",
-          "value": "Lyon"
-        }
-      ]
-    },
-    {
-      "attributes": [
-        {
-          "key": "Country",
-          "value": "Russia"
-        },
-        {
-          "key": "Rating",
-          "value": "5"
-        },
-        {
-          "key": "City",
-          "value": "SPB"
-        }
-      ]
-    },
-    {
-      "attributes": [
-        {
-          "key": "Country",
-          "value": "Russia"
-        },
-        {
-          "key": "Rating",
-          "value": "7"
-        },
-        {
-          "key": "City",
-          "value": "Moscow"
-        }
-      ]
-    },
-    {
-      "attributes": [
-        {
-          "key": "Country",
-          "value": "Germany"
-        },
-        {
-          "key": "Rating",
-          "value": "3"
-        },
-        {
-          "key": "City",
-          "value": "Darmstadt"
-        }
-      ]
-    },
-    {
-      "attributes": [
-        {
-          "key": "Country",
-          "value": "Germany"
-        },
-        {
-          "key": "Rating",
-          "value": "7"
-        },
-        {
-          "key": "City",
-          "value": "Frankfurt"
-        }
-      ]
-    },
-    {
-      "attributes": [
-        {
-          "key": "Country",
-          "value": "Russia"
-        },
-        {
-          "key": "Rating",
-          "value": "9"
-        },
-        {
-          "key": "City",
-          "value": "SPB"
-        }
-      ]
-    },
-    {
-      "attributes": [
-        {
-          "key": "Country",
-          "value": "Russia"
-        },
-        {
-          "key": "Rating",
-          "value": "9"
-        },
-        {
-          "key": "City",
-          "value": "SPB"
-        }
-      ]
-    }
-  ],
-  "tests": {
-    "Select": {
-      "policy": {"replicas":[{"count":1,"selector":"SameRU"},{"count":1,"selector":"DistinctRU"},{"count":1,"selector":"Good"},{"count":1,"selector":"Main"}],"containerBackupFactor":2,"selectors":[{"name":"SameRU","count":2,"clause":"SAME","attribute":"City","filter":"FromRU"},{"name":"DistinctRU","count":2,"clause":"DISTINCT","attribute":"City","filter":"FromRU"},{"name":"Good","count":2,"clause":"DISTINCT","attribute":"Country","filter":"Good"},{"name":"Main","count":3,"clause":"DISTINCT","attribute":"Country","filter":"*"}],"filters":[{"name":"FromRU","key":"Country","op":"EQ","value":"Russia"},{"name":"Good","key":"Rating","op":"GE","value":"4"}]},
-      "result": [
-        [0, 5, 9, 10],
-        [2, 6, 0, 5],
-        [1, 8, 2, 5],
-        [3, 4, 1, 7, 0, 2]
-      ]
-    }
-  }
-}

netmap/json_tests/multiple_rep.json

@@ -1,94 +0,0 @@
-{
-  "name": "multiple replicas (#215)",
-  "nodes": [
-    {
-      "attributes": [
-        {
-          "key": "City",
-          "value": "Saint-Petersburg"
-        }
-      ]
-    },
-    {
-      "attributes": [
-        {
-          "key": "City",
-          "value": "Moscow"
-        }
-      ]
-    },
-    {
-      "attributes": [
-        {
-          "key": "City",
-          "value": "Berlin"
-        }
-      ]
-    },
-    {
-      "attributes": [
-        {
-          "key": "City",
-          "value": "Paris"
-        }
-      ]
-    }
-  ],
-  "tests": {
-    "test": {
-      "policy": {
-        "replicas": [
-          {
-            "count": 1,
-            "selector": "LOC_SPB_PLACE"
-          },
-          {
-            "count": 1,
-            "selector": "LOC_MSK_PLACE"
-          }
-        ],
-        "containerBackupFactor": 1,
-        "selectors": [
-          {
-            "name": "LOC_SPB_PLACE",
-            "count": 1,
-            "clause": "CLAUSE_UNSPECIFIED",
-            "attribute": "",
-            "filter": "LOC_SPB"
-          },
-          {
-            "name": "LOC_MSK_PLACE",
-            "count": 1,
-            "clause": "CLAUSE_UNSPECIFIED",
-            "attribute": "",
-            "filter": "LOC_MSK"
-          }
-        ],
-        "filters": [
-          {
-            "name": "LOC_SPB",
-            "key": "City",
-            "op": "EQ",
-            "value": "Saint-Petersburg",
-            "filters": []
-          },
-          {
-            "name": "LOC_MSK",
-            "key": "City",
-            "op": "EQ",
-            "value": "Moscow",
-            "filters": []
-          }
-        ]
-      },
-      "result": [
-        [
-          0
-        ],
-        [
-          1
-        ]
-      ]
-    }
-  }
-}

netmap/json_tests/multiple_rep_asymmetric.json

@@ -1,331 +0,0 @@
-{
-  "name": "multiple REP, asymmetric",
-  "nodes": [
-    {
-      "attributes": [
-        {
-          "key": "ID",
-          "value": "1"
-        },
-        {
-          "key": "Country",
-          "value": "RU"
-        },
-        {
-          "key": "City",
-          "value": "St.Petersburg"
-        },
-        {
-          "key": "SSD",
-          "value": "0"
-        }
-      ]
-    },
-    {
-      "attributes": [
-        {
-          "key": "ID",
-          "value": "2"
-        },
-        {
-          "key": "Country",
-          "value": "RU"
-        },
-        {
-          "key": "City",
-          "value": "St.Petersburg"
-        },
-        {
-          "key": "SSD",
-          "value": "1"
-        }
-      ]
-    },
-    {
-      "attributes": [
-        {
-          "key": "ID",
-          "value": "3"
-        },
-        {
-          "key": "Country",
-          "value": "RU"
-        },
-        {
-          "key": "City",
-          "value": "Moscow"
-        },
-        {
-          "key": "SSD",
-          "value": "1"
-        }
-      ]
-    },
-    {
-      "attributes": [
-        {
-          "key": "ID",
-          "value": "4"
-        },
-        {
-          "key": "Country",
-          "value": "RU"
-        },
-        {
-          "key": "City",
-          "value": "Moscow"
-        },
-        {
-          "key": "SSD",
-          "value": "1"
-        }
-      ]
-    },
-    {
-      "attributes": [
-        {
-          "key": "ID",
-          "value": "5"
-        },
-        {
-          "key": "Country",
-          "value": "RU"
-        },
-        {
-          "key": "City",
-          "value": "St.Petersburg"
-        },
-        {
-          "key": "SSD",
-          "value": "1"
-        }
-      ]
-    },
-    {
-      "attributes": [
-        {
-          "key": "ID",
-          "value": "6"
-        },
-        {
-          "key": "Continent",
-          "value": "NA"
-        },
-        {
-          "key": "City",
-          "value": "NewYork"
-        }
-      ]
-    },
-    {
-      "attributes": [
-        {
-          "key": "ID",
-          "value": "7"
-        },
-        {
-          "key": "Continent",
-          "value": "AF"
-        },
-        {
-          "key": "City",
-          "value": "Cairo"
-        }
-      ]
-    },
-    {
-      "attributes": [
-        {
-          "key": "ID",
-          "value": "8"
-        },
-        {
-          "key": "Continent",
-          "value": "AF"
-        },
-        {
-          "key": "City",
-          "value": "Cairo"
-        }
-      ]
-    },
-    {
-      "attributes": [
-        {
-          "key": "ID",
-          "value": "9"
-        },
-        {
-          "key": "Continent",
-          "value": "SA"
-        },
-        {
-          "key": "City",
-          "value": "Lima"
-        }
-      ]
-    },
-    {
-      "attributes": [
-        {
-          "key": "ID",
-          "value": "10"
-        },
-        {
-          "key": "Continent",
-          "value": "AF"
-        },
-        {
-          "key": "City",
-          "value": "Cairo"
-        }
-      ]
-    },
-    {
-      "attributes": [
-        {
-          "key": "ID",
-          "value": "11"
-        },
-        {
-          "key": "Continent",
-          "value": "NA"
-        },
-        {
-          "key": "City",
-          "value": "NewYork"
-        }
-      ]
-    },
-    {
-      "attributes": [
-        {
-          "key": "ID",
-          "value": "12"
-        },
-        {
-          "key": "Continent",
-          "value": "NA"
-        },
-        {
-          "key": "City",
-          "value": "LosAngeles"
-        }
-      ]
-    },
-    {
-      "attributes": [
-        {
-          "key": "ID",
-          "value": "13"
-        },
-        {
-          "key": "Continent",
-          "value": "SA"
-        },
-        {
-          "key": "City",
-          "value": "Lima"
-        }
-      ]
-    }
-  ],
-  "tests": {
-    "test": {
-      "policy": {
-        "replicas": [
-          {
-            "count": 1,
-            "selector": "SPB"
-          },
-          {
-            "count": 2,
-            "selector": "Americas"
-          }
-        ],
-        "containerBackupFactor": 2,
-        "selectors": [
-          {
-            "name": "SPB",
-            "count": 1,
-            "clause": "SAME",
-            "attribute": "City",
-            "filter": "SPBSSD"
-          },
-          {
-            "name": "Americas",
-            "count": 2,
-            "clause": "DISTINCT",
-            "attribute": "City",
-            "filter": "Americas"
-          }
-        ],
-        "filters": [
-          {
-            "name": "SPBSSD",
-            "key": "",
-            "op": "AND",
-            "value": "",
-            "filters": [
-              {
-                "name": "",
-                "key": "Country",
-                "op": "EQ",
-                "value": "RU",
-                "filters": []
-              },
-              {
-                "name": "",
-                "key": "City",
-                "op": "EQ",
-                "value": "St.Petersburg",
-                "filters": []
-              },
-              {
-                "name": "",
-                "key": "SSD",
-                "op": "EQ",
-                "value": "1",
-                "filters": []
-              }
-            ]
-          },
-          {
-            "name": "Americas",
-            "key": "",
-            "op": "OR",
-            "value": "",
-            "filters": [
-              {
-                "name": "",
-                "key": "Continent",
-                "op": "EQ",
-                "value": "NA",
-                "filters": []
-              },
-              {
-                "name": "",
-                "key": "Continent",
-                "op": "EQ",
-                "value": "SA",
-                "filters": []
-              }
-            ]
-          }
-        ]
-      },
-      "result": [
-        [
-          1,
-          4
-        ],
-        [
-          8,
-          12,
-          5,
-          10
-        ]
-      ]
-    }
-  }
-}

netmap/json_tests/non_strict.json

@@ -1,95 +0,0 @@
-{
-  "name": "non-strict selections",
-  "comment": "These test specify loose selection behaviour, to allow fetching already PUT objects even when there is not enough nodes to select from.",
-  "nodes": [
-    {
-      "attributes": [
-        {
-          "key": "Country",
-          "value": "Russia"
-        }
-      ]
-    },
-    {
-      "attributes": [
-        {
-          "key": "Country",
-          "value": "Germany"
-        }
-      ]
-    },
-    {
-      "attributes": [ ]
-    }
-  ],
-  "tests": {
-    "not enough nodes (backup factor)": {
-      "policy": {
-        "replicas": [
-          {
-            "count": 1,
-            "selector": "MyStore"
-          }
-        ],
-        "containerBackupFactor": 2,
-        "selectors": [
-          {
-            "name": "MyStore",
-            "count": 2,
-            "clause": "DISTINCT",
-            "attribute": "Country",
-            "filter": "FromRU"
-          }
-        ],
-        "filters": [
-          {
-            "name": "FromRU",
-            "key": "Country",
-            "op": "EQ",
-            "value": "Russia",
-            "filters": [ ]
-          }
-        ]
-      },
-      "result": [
-        [
-          0
-        ]
-      ]
-    },
-    "not enough nodes (buckets)": {
-      "policy": {
-        "replicas": [
-          {
-            "count": 1,
-            "selector": "MyStore"
-          }
-        ],
-        "containerBackupFactor": 1,
-        "selectors": [
-          {
-            "name": "MyStore",
-            "count": 2,
-            "clause": "DISTINCT",
-            "attribute": "Country",
-            "filter": "FromRU"
-          }
-        ],
-        "filters": [
-          {
-            "name": "FromRU",
-            "key": "Country",
-            "op": "EQ",
-            "value": "Russia",
-            "filters": [ ]
-          }
-        ]
-      },
-      "result": [
-        [
-          0
-        ]
-      ]
-    }
-  }
-}

netmap/json_tests/rep_only.json

@@ -1,117 +0,0 @@
-{
-  "name": "REP X",
-  "nodes": [
-    {
-      "publicKey": "",
-      "addresses": [],
-      "attributes": [
-        {
-          "key": "City",
-          "value": "Saint-Petersburg",
-          "parents": []
-        }
-      ],
-      "state": "UNSPECIFIED"
-    },
-    {
-      "publicKey": "",
-      "addresses": [],
-      "attributes": [
-        {
-          "key": "City",
-          "value": "Moscow",
-          "parents": []
-        }
-      ],
-      "state": "UNSPECIFIED"
-    },
-    {
-      "publicKey": "",
-      "addresses": [],
-      "attributes": [
-        {
-          "key": "City",
-          "value": "Berlin",
-          "parents": []
-        }
-      ],
-      "state": "UNSPECIFIED"
-    },
-    {
-      "publicKey": "",
-      "addresses": [],
-      "attributes": [
-        {
-          "key": "City",
-          "value": "Paris",
-          "parents": []
-        }
-      ],
-      "state": "UNSPECIFIED"
-    }
-  ],
-  "tests": {
-    "REP 1": {
-      "policy": {
-        "replicas": [
-          {
-            "count": 1,
-            "selector": ""
-          }
-        ],
-        "containerBackupFactor": 0,
-        "selectors": [],
-        "filters": []
-      },
-      "result": [
-        [
-          0,
-          1,
-          2
-        ]
-      ]
-    },
-    "REP 3": {
-      "policy": {
-        "replicas": [
-          {
-            "count": 3,
-            "selector": ""
-          }
-        ],
-        "containerBackupFactor": 0,
-        "selectors": [],
-        "filters": []
-      },
-      "result": [
-        [
-          0,
-          3,
-          1,
-          2
-        ]
-      ]
-    },
-    "REP 5": {
-      "policy": {
-        "replicas": [
-          {
-            "count": 5,
-            "selector": ""
-          }
-        ],
-        "containerBackupFactor": 0,
-        "selectors": [],
-        "filters": []
-      },
-      "result": [
-        [
-          0,
-          1,
-          2,
-          3
-        ]
-      ]
-    }
-  }
-}

netmap/json_tests/select_no_attribute.json

@@ -1,116 +0,0 @@
-{
-  "name": "select with unspecified attribute",
-  "nodes": [
-    {
-      "attributes": [
-        {
-          "key": "ID",
-          "value": "1"
-        },
-        {
-          "key": "Country",
-          "value": "RU"
-        },
-        {
-          "key": "City",
-          "value": "St.Petersburg"
-        },
-        {
-          "key": "SSD",
-          "value": "0"
-        }
-      ]
-    },
-    {
-      "attributes": [
-        {
-          "key": "ID",
-          "value": "2"
-        },
-        {
-          "key": "Country",
-          "value": "RU"
-        },
-        {
-          "key": "City",
-          "value": "St.Petersburg"
-        },
-        {
-          "key": "SSD",
-          "value": "1"
-        }
-      ]
-    },
-    {
-      "attributes": [
-        {
-          "key": "ID",
-          "value": "3"
-        },
-        {
-          "key": "Country",
-          "value": "RU"
-        },
-        {
-          "key": "City",
-          "value": "Moscow"
-        },
-        {
-          "key": "SSD",
-          "value": "1"
-        }
-      ]
-    },
-    {
-      "attributes": [
-        {
-          "key": "ID",
-          "value": "4"
-        },
-        {
-          "key": "Country",
-          "value": "RU"
-        },
-        {
-          "key": "City",
-          "value": "Moscow"
-        },
-        {
-          "key": "SSD",
-          "value": "1"
-        }
-      ]
-    }
-  ],
-  "tests": {
-    "test": {
-      "policy": {
-        "replicas": [
-          {
-            "count": 1,
-            "selector": "X"
-          }
-        ],
-        "containerBackupFactor": 1,
-        "selectors": [
-          {
-            "name": "X",
-            "count": 4,
-            "clause": "DISTINCT",
-            "attribute": "",
-            "filter": "*"
-          }
-        ],
-        "filters": []
-      },
-      "result": [
-        [
-          0,
-          1,
-          2,
-          3
-        ]
-      ]
-    }
-  }
-}

netmap/json_tests/selector_invalid.json

@@ -1,86 +0,0 @@
-{
-  "name": "invalid selections",
-  "nodes": [
-    {
-      "attributes": [
-        {
-          "key": "Country",
-          "value": "Russia"
-        }
-      ]
-    },
-    {
-      "attributes": [
-        {
-          "key": "Country",
-          "value": "Germany"
-        }
-      ]
-    },
-    {
-      "attributes": []
-    }
-  ],
-  "tests": {
-    "missing filter": {
-      "policy": {
-        "replicas": [
-          {
-            "count": 1,
-            "selector": "MyStore"
-          }
-        ],
-        "containerBackupFactor": 1,
-        "selectors": [
-          {
-            "name": "MyStore",
-            "count": 1,
-            "clause": "DISTINCT",
-            "attribute": "Country",
-            "filter": "FromNL"
-          }
-        ],
-        "filters": [
-          {
-            "name": "FromRU",
-            "key": "Country",
-            "op": "EQ",
-            "value": "Russia",
-            "filters": []
-          }
-        ]
-      },
-      "error": "filter not found"
-    },
-    "not enough nodes (filter results in empty set)": {
-      "policy": {
-        "replicas": [
-          {
-            "count": 1,
-            "selector": "MyStore"
-          }
-        ],
-        "containerBackupFactor": 2,
-        "selectors": [
-          {
-            "name": "MyStore",
-            "count": 2,
-            "clause": "DISTINCT",
-            "attribute": "Country",
-            "filter": "FromMoon"
-          }
-        ],
-        "filters": [
-          {
-            "name": "FromMoon",
-            "key": "Country",
-            "op": "EQ",
-            "value": "Moon",
-            "filters": []
-          }
-        ]
-      },
-      "error": "not enough nodes"
-    }
-  }
-}

netmap/netmap.go

@@ -113,9 +113,10 @@ func (n nodes) Hash() uint64 {
 	return 0
 }
 
-// weights returns slice of nodes weights W.
-func (n nodes) weights(wf weightFunc) []float64 {
-	w := make([]float64, 0, len(n))
+func (n nodes) appendWeightsTo(wf weightFunc, w []float64) []float64 {
+	if cap(w) < len(n) {
+		w = make([]float64, 0, len(n))
+	}
 	for i := range n {
 		w = append(w, wf(n[i]))
 	}
@@ -149,10 +150,13 @@ func (m NetMap) PlacementVectors(vectors [][]NodeInfo, pivot []byte) ([][]NodeIn
 	wf := defaultWeightFunc(m.nodes)
 	result := make([][]NodeInfo, len(vectors))
 
+	var ws []float64
+
 	for i := range vectors {
 		result[i] = make([]NodeInfo, len(vectors[i]))
 		copy(result[i], vectors[i])
-		hrw.SortHasherSliceByWeightValue(result[i], nodes(result[i]).weights(wf), h)
+		ws = nodes(result[i]).appendWeightsTo(wf, ws[:0])
+		hrw.SortHasherSliceByWeightValue(result[i], ws, h)
 	}
 
 	return result, nil
@@ -209,6 +213,25 @@ func (m NetMap) SelectFilterNodes(expr *SelectFilterExpr) ([][]NodeInfo, error)
 	return ret, nil
 }
 
+func countNodes(r netmap.Replica) uint32 {
+	if r.GetCount() != 0 {
+		return r.GetCount()
+	}
+	return r.GetECDataCount() + r.GetECParityCount()
+}
+
+func (p PlacementPolicy) isUnique() bool {
+	if p.unique {
+		return true
+	}
+	for _, r := range p.replicas {
+		if r.GetECDataCount() != 0 || r.GetECParityCount() != 0 {
+			return true
+		}
+	}
+	return false
+}
+
 // ContainerNodes returns two-dimensional list of nodes as a result of applying
 // given PlacementPolicy to the NetMap. Each line of the list corresponds to a
 // replica descriptor. Line order corresponds to order of ReplicaDescriptor list
@@ -230,6 +253,7 @@ func (m NetMap) ContainerNodes(p PlacementPolicy, pivot []byte) ([][]NodeInfo, e
 		return nil, err
 	}
 
+	unique := p.isUnique()
 	result := make([][]NodeInfo, len(p.replicas))
 
 	// Note that the cached selectors are not used when the policy contains the UNIQUE flag.
@@ -240,7 +264,7 @@ func (m NetMap) ContainerNodes(p PlacementPolicy, pivot []byte) ([][]NodeInfo, e
 		sName := p.replicas[i].GetSelector()
 		if sName == "" && !(len(p.replicas) == 1 && len(p.selectors) == 1) {
 			var s netmap.Selector
-			s.SetCount(p.replicas[i].GetCount())
+			s.SetCount(countNodes(p.replicas[i]))
 			s.SetFilter(mainFilterName)
 
 			nodes, err := c.getSelection(s)
@@ -250,14 +274,14 @@ func (m NetMap) ContainerNodes(p PlacementPolicy, pivot []byte) ([][]NodeInfo, e
 
 			result[i] = append(result[i], flattenNodes(nodes)...)
 
-			if p.unique {
+			if unique {
 				c.addUsedNodes(result[i]...)
 			}
 
 			continue
 		}
 
-		if p.unique {
+		if unique {
 			if c.processedSelectors[sName] == nil {
 				return nil, fmt.Errorf("selector not found: '%s'", sName)
 			}

netmap/network_info.go

@@ -49,11 +49,6 @@ func (x *NetworkInfo) readFromV2(m netmap.NetworkInfo, checkFieldPresence bool)
 		mNames[name] = struct{}{}
 
 		switch name {
-		default:
-			if len(prm.GetValue()) == 0 {
-				err = fmt.Errorf("empty attribute value %s", name)
-				return true
-			}
 		case
 			configAuditFee,
 			configStoragePrice,
@@ -62,6 +57,8 @@ func (x *NetworkInfo) readFromV2(m netmap.NetworkInfo, checkFieldPresence bool)
 			configEpochDuration,
 			configIRCandidateFee,
 			configMaxObjSize,
+			configMaxECDataCount,
+			configMaxECParityCount,
 			configWithdrawalFee:
 			_, err = decodeConfigValueUint64(prm.GetValue())
 		case configHomomorphicHashingDisabled,
@@ -234,6 +231,8 @@ func (x *NetworkInfo) IterateRawNetworkParameters(f func(name string, value []by
 			configEpochDuration,
 			configIRCandidateFee,
 			configMaxObjSize,
+			configMaxECDataCount,
+			configMaxECParityCount,
 			configWithdrawalFee,
 			configHomomorphicHashingDisabled,
 			configMaintenanceModeAllowed:
@@ -432,6 +431,34 @@ func (x NetworkInfo) MaxObjectSize() uint64 {
 	return x.configUint64(configMaxObjSize)
 }
 
+const configMaxECDataCount = "MaxECDataCount"
+
+// SetMaxECDataCount sets maximum number of data shards for erasure codes.
+//
+// Zero means no restrictions.
+func (x *NetworkInfo) SetMaxECDataCount(dataCount uint64) {
+	x.setConfigUint64(configMaxECDataCount, dataCount)
+}
+
+// MaxECDataCount returns maximum number of data shards for erasure codes.
+func (x NetworkInfo) MaxECDataCount() uint64 {
+	return x.configUint64(configMaxECDataCount)
+}
+
+const configMaxECParityCount = "MaxECParityCount"
+
+// SetMaxECParityCount sets maximum number of parity shards for erasure codes.
+//
+// Zero means no restrictions.
+func (x *NetworkInfo) SetMaxECParityCount(parityCount uint64) {
+	x.setConfigUint64(configMaxECParityCount, parityCount)
+}
+
+// MaxECParityCount returns maximum number of parity shards for erasure codes.
+func (x NetworkInfo) MaxECParityCount() uint64 {
+	return x.configUint64(configMaxECParityCount)
+}
+
 const configWithdrawalFee = "WithdrawFee"
 
 // SetWithdrawalFee sets fee for withdrawals from the FrostFS accounts that

netmap/network_info_test.go

@@ -173,6 +173,32 @@ func TestNetworkInfo_MaxObjectSize(t *testing.T) {
 	)
 }
 
+func TestNetworkInfo_MaxECDataCount(t *testing.T) {
+	testConfigValue(t,
+		func(x NetworkInfo) any { return x.MaxECDataCount() },
+		func(info *NetworkInfo, val any) { info.SetMaxECDataCount(val.(uint64)) },
+		uint64(1), uint64(2),
+		"MaxECDataCount", func(val any) []byte {
+			data := make([]byte, 8)
+			binary.LittleEndian.PutUint64(data, val.(uint64))
+			return data
+		},
+	)
+}
+
+func TestNetworkInfo_MaxECParityCount(t *testing.T) {
+	testConfigValue(t,
+		func(x NetworkInfo) any { return x.MaxECParityCount() },
+		func(info *NetworkInfo, val any) { info.SetMaxECParityCount(val.(uint64)) },
+		uint64(1), uint64(2),
+		"MaxECParityCount", func(val any) []byte {
+			data := make([]byte, 8)
+			binary.LittleEndian.PutUint64(data, val.(uint64))
+			return data
+		},
+	)
+}
+
 func TestNetworkInfo_WithdrawalFee(t *testing.T) {
 	testConfigValue(t,
 		func(x NetworkInfo) any { return x.WithdrawalFee() },

netmap/node_info.go

@@ -3,7 +3,7 @@ package netmap
 import (
 	"errors"
 	"fmt"
-	"sort"
+	"slices"
 	"strconv"
 	"strings"
 
@@ -227,14 +227,6 @@ func (x NodeInfo) Hash() uint64 {
 	return hrw.Hash(x.m.GetPublicKey())
 }
 
-// less declares "less than" comparison between two NodeInfo instances:
-// x1 is less than x2 if it has less Hash().
-//
-// Method is needed for internal placement needs.
-func less(x1, x2 NodeInfo) bool {
-	return x1.Hash() < x2.Hash()
-}
-
 func (x *NodeInfo) setNumericAttribute(key string, num uint64) {
 	x.SetAttribute(key, strconv.FormatUint(num, 10))
 }
@@ -455,15 +447,11 @@ func (x *NodeInfo) SortAttributes() {
 		return
 	}
 
-	sort.Slice(as, func(i, j int) bool {
-		switch strings.Compare(as[i].GetKey(), as[j].GetKey()) {
-		case -1:
-			return true
-		case 1:
-			return false
-		default:
-			return as[i].GetValue() < as[j].GetValue()
+	slices.SortFunc(as, func(ai, aj netmap.Attribute) int {
+		if r := strings.Compare(ai.GetKey(), aj.GetKey()); r != 0 {
+			return r
 		}
+		return strings.Compare(ai.GetValue(), aj.GetValue())
 	})
 
 	x.m.SetAttributes(as)

netmap/parser/Query.g4

@@ -4,10 +4,14 @@ options {
     tokenVocab = QueryLexer;
 }
 
-policy: UNIQUE? repStmt+ cbfStmt? selectStmt* filterStmt* EOF;
+policy: UNIQUE? (repStmt | ecStmt)+ cbfStmt? selectStmt* filterStmt* EOF;
 
 selectFilterExpr: cbfStmt? selectStmt? filterStmt* EOF;
 
+ecStmt:
+    EC Data = NUMBER1 DOT Parity = NUMBER1 // erasure code configuration
+    (IN Selector = ident)?;                // optional selector name
+
 repStmt:
     REP Count = NUMBER1     // number of object replicas
     (IN Selector = ident)?; // optional selector name

netmap/parser/QueryLexer.g4

@@ -7,6 +7,7 @@ SIMPLE_OP  : 'EQ' | 'NE' | 'GE' | 'GT' | 'LT' | 'LE';
 
 UNIQUE   : 'UNIQUE';
 REP      : 'REP';
+EC       : 'EC';
 IN       : 'IN';
 AS       : 'AS';
 CBF      : 'CBF';
@@ -14,6 +15,7 @@ SELECT   : 'SELECT';
 FROM     : 'FROM';
 FILTER   : 'FILTER';
 WILDCARD : '*';
+DOT      : '.';
 
 CLAUSE_SAME     : 'SAME';
 CLAUSE_DISTINCT : 'DISTINCT';

netmap/parser/query_base_visitor.go

@@ -1,4 +1,4 @@
-// Code generated from Query.g4 by ANTLR 4.13.0. DO NOT EDIT.
+// Code generated from /repo/frostfs/sdk-go/netmap/parser/Query.g4 by ANTLR 4.13.0. DO NOT EDIT.
 
 package parser // Query
 
@@ -16,6 +16,10 @@ func (v *BaseQueryVisitor) VisitSelectFilterExpr(ctx *SelectFilterExprContext) i
 	return v.VisitChildren(ctx)
 }
 
+func (v *BaseQueryVisitor) VisitEcStmt(ctx *EcStmtContext) interface{} {
+	return v.VisitChildren(ctx)
+}
+
 func (v *BaseQueryVisitor) VisitRepStmt(ctx *RepStmtContext) interface{} {
 	return v.VisitChildren(ctx)
 }

netmap/parser/query_lexer.go

@@ -1,4 +1,4 @@
-// Code generated from QueryLexer.g4 by ANTLR 4.13.0. DO NOT EDIT.
+// Code generated from /repo/frostfs/sdk-go/netmap/parser/QueryLexer.g4 by ANTLR 4.13.0. DO NOT EDIT.
 
 package parser
 
@@ -43,119 +43,123 @@ func querylexerLexerInit() {
 		"DEFAULT_MODE",
 	}
 	staticData.LiteralNames = []string{
-		"", "'NOT'", "'AND'", "'OR'", "", "'UNIQUE'", "'REP'", "'IN'", "'AS'",
-		"'CBF'", "'SELECT'", "'FROM'", "'FILTER'", "'*'", "'SAME'", "'DISTINCT'",
-		"'('", "')'", "'@'", "", "", "'0'",
+		"", "'NOT'", "'AND'", "'OR'", "", "'UNIQUE'", "'REP'", "'EC'", "'IN'",
+		"'AS'", "'CBF'", "'SELECT'", "'FROM'", "'FILTER'", "'*'", "'.'", "'SAME'",
+		"'DISTINCT'", "'('", "')'", "'@'", "", "", "'0'",
 	}
 	staticData.SymbolicNames = []string{
-		"", "NOT_OP", "AND_OP", "OR_OP", "SIMPLE_OP", "UNIQUE", "REP", "IN",
-		"AS", "CBF", "SELECT", "FROM", "FILTER", "WILDCARD", "CLAUSE_SAME",
+		"", "NOT_OP", "AND_OP", "OR_OP", "SIMPLE_OP", "UNIQUE", "REP", "EC",
+		"IN", "AS", "CBF", "SELECT", "FROM", "FILTER", "WILDCARD", "DOT", "CLAUSE_SAME",
 		"CLAUSE_DISTINCT", "L_PAREN", "R_PAREN", "AT", "IDENT", "NUMBER1", "ZERO",
 		"STRING", "WS",
 	}
 	staticData.RuleNames = []string{
-		"NOT_OP", "AND_OP", "OR_OP", "SIMPLE_OP", "UNIQUE", "REP", "IN", "AS",
-		"CBF", "SELECT", "FROM", "FILTER", "WILDCARD", "CLAUSE_SAME", "CLAUSE_DISTINCT",
-		"L_PAREN", "R_PAREN", "AT", "IDENT", "Digit", "Nondigit", "NUMBER1",
-		"ZERO", "STRING", "ESC", "UNICODE", "HEX", "SAFECODEPOINTSINGLE", "SAFECODEPOINTDOUBLE",
-		"WS",
+		"NOT_OP", "AND_OP", "OR_OP", "SIMPLE_OP", "UNIQUE", "REP", "EC", "IN",
+		"AS", "CBF", "SELECT", "FROM", "FILTER", "WILDCARD", "DOT", "CLAUSE_SAME",
+		"CLAUSE_DISTINCT", "L_PAREN", "R_PAREN", "AT", "IDENT", "Digit", "Nondigit",
+		"NUMBER1", "ZERO", "STRING", "ESC", "UNICODE", "HEX", "SAFECODEPOINTSINGLE",
+		"SAFECODEPOINTDOUBLE", "WS",
 	}
 	staticData.PredictionContextCache = antlr.NewPredictionContextCache()
 	staticData.serializedATN = []int32{
-		4, 0, 23, 213, 6, -1, 2, 0, 7, 0, 2, 1, 7, 1, 2, 2, 7, 2, 2, 3, 7, 3, 2,
+		4, 0, 25, 222, 6, -1, 2, 0, 7, 0, 2, 1, 7, 1, 2, 2, 7, 2, 2, 3, 7, 3, 2,
 		4, 7, 4, 2, 5, 7, 5, 2, 6, 7, 6, 2, 7, 7, 7, 2, 8, 7, 8, 2, 9, 7, 9, 2,
 		10, 7, 10, 2, 11, 7, 11, 2, 12, 7, 12, 2, 13, 7, 13, 2, 14, 7, 14, 2, 15,
 		7, 15, 2, 16, 7, 16, 2, 17, 7, 17, 2, 18, 7, 18, 2, 19, 7, 19, 2, 20, 7,
 		20, 2, 21, 7, 21, 2, 22, 7, 22, 2, 23, 7, 23, 2, 24, 7, 24, 2, 25, 7, 25,
-		2, 26, 7, 26, 2, 27, 7, 27, 2, 28, 7, 28, 2, 29, 7, 29, 1, 0, 1, 0, 1,
-		0, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 2, 1, 2, 1, 3, 1, 3, 1, 3, 1,
-		3, 1, 3, 1, 3, 1, 3, 1, 3, 1, 3, 1, 3, 1, 3, 1, 3, 3, 3, 85, 8, 3, 1, 4,
-		1, 4, 1, 4, 1, 4, 1, 4, 1, 4, 1, 4, 1, 5, 1, 5, 1, 5, 1, 5, 1, 6, 1, 6,
-		1, 6, 1, 7, 1, 7, 1, 7, 1, 8, 1, 8, 1, 8, 1, 8, 1, 9, 1, 9, 1, 9, 1, 9,
-		1, 9, 1, 9, 1, 9, 1, 10, 1, 10, 1, 10, 1, 10, 1, 10, 1, 11, 1, 11, 1, 11,
-		1, 11, 1, 11, 1, 11, 1, 11, 1, 12, 1, 12, 1, 13, 1, 13, 1, 13, 1, 13, 1,
-		13, 1, 14, 1, 14, 1, 14, 1, 14, 1, 14, 1, 14, 1, 14, 1, 14, 1, 14, 1, 15,
-		1, 15, 1, 16, 1, 16, 1, 17, 1, 17, 1, 18, 1, 18, 1, 18, 5, 18, 152, 8,
-		18, 10, 18, 12, 18, 155, 9, 18, 1, 19, 1, 19, 1, 20, 1, 20, 1, 21, 1, 21,
-		5, 21, 163, 8, 21, 10, 21, 12, 21, 166, 9, 21, 1, 22, 1, 22, 1, 23, 1,
-		23, 1, 23, 5, 23, 173, 8, 23, 10, 23, 12, 23, 176, 9, 23, 1, 23, 1, 23,
-		1, 23, 1, 23, 5, 23, 182, 8, 23, 10, 23, 12, 23, 185, 9, 23, 1, 23, 3,
-		23, 188, 8, 23, 1, 24, 1, 24, 1, 24, 3, 24, 193, 8, 24, 1, 25, 1, 25, 1,
-		25, 1, 25, 1, 25, 1, 25, 1, 26, 1, 26, 1, 27, 1, 27, 1, 28, 1, 28, 1, 29,
-		4, 29, 208, 8, 29, 11, 29, 12, 29, 209, 1, 29, 1, 29, 0, 0, 30, 1, 1, 3,
-		2, 5, 3, 7, 4, 9, 5, 11, 6, 13, 7, 15, 8, 17, 9, 19, 10, 21, 11, 23, 12,
-		25, 13, 27, 14, 29, 15, 31, 16, 33, 17, 35, 18, 37, 19, 39, 0, 41, 0, 43,
-		20, 45, 21, 47, 22, 49, 0, 51, 0, 53, 0, 55, 0, 57, 0, 59, 23, 1, 0, 8,
-		1, 0, 48, 57, 3, 0, 65, 90, 95, 95, 97, 122, 1, 0, 49, 57, 9, 0, 34, 34,
-		39, 39, 47, 47, 92, 92, 98, 98, 102, 102, 110, 110, 114, 114, 116, 116,
-		3, 0, 48, 57, 65, 70, 97, 102, 3, 0, 0, 31, 39, 39, 92, 92, 3, 0, 0, 31,
-		34, 34, 92, 92, 3, 0, 9, 10, 13, 13, 32, 32, 220, 0, 1, 1, 0, 0, 0, 0,
-		3, 1, 0, 0, 0, 0, 5, 1, 0, 0, 0, 0, 7, 1, 0, 0, 0, 0, 9, 1, 0, 0, 0, 0,
-		11, 1, 0, 0, 0, 0, 13, 1, 0, 0, 0, 0, 15, 1, 0, 0, 0, 0, 17, 1, 0, 0, 0,
-		0, 19, 1, 0, 0, 0, 0, 21, 1, 0, 0, 0, 0, 23, 1, 0, 0, 0, 0, 25, 1, 0, 0,
-		0, 0, 27, 1, 0, 0, 0, 0, 29, 1, 0, 0, 0, 0, 31, 1, 0, 0, 0, 0, 33, 1, 0,
-		0, 0, 0, 35, 1, 0, 0, 0, 0, 37, 1, 0, 0, 0, 0, 43, 1, 0, 0, 0, 0, 45, 1,
-		0, 0, 0, 0, 47, 1, 0, 0, 0, 0, 59, 1, 0, 0, 0, 1, 61, 1, 0, 0, 0, 3, 65,
-		1, 0, 0, 0, 5, 69, 1, 0, 0, 0, 7, 84, 1, 0, 0, 0, 9, 86, 1, 0, 0, 0, 11,
-		93, 1, 0, 0, 0, 13, 97, 1, 0, 0, 0, 15, 100, 1, 0, 0, 0, 17, 103, 1, 0,
-		0, 0, 19, 107, 1, 0, 0, 0, 21, 114, 1, 0, 0, 0, 23, 119, 1, 0, 0, 0, 25,
-		126, 1, 0, 0, 0, 27, 128, 1, 0, 0, 0, 29, 133, 1, 0, 0, 0, 31, 142, 1,
-		0, 0, 0, 33, 144, 1, 0, 0, 0, 35, 146, 1, 0, 0, 0, 37, 148, 1, 0, 0, 0,
-		39, 156, 1, 0, 0, 0, 41, 158, 1, 0, 0, 0, 43, 160, 1, 0, 0, 0, 45, 167,
-		1, 0, 0, 0, 47, 187, 1, 0, 0, 0, 49, 189, 1, 0, 0, 0, 51, 194, 1, 0, 0,
-		0, 53, 200, 1, 0, 0, 0, 55, 202, 1, 0, 0, 0, 57, 204, 1, 0, 0, 0, 59, 207,
-		1, 0, 0, 0, 61, 62, 5, 78, 0, 0, 62, 63, 5, 79, 0, 0, 63, 64, 5, 84, 0,
-		0, 64, 2, 1, 0, 0, 0, 65, 66, 5, 65, 0, 0, 66, 67, 5, 78, 0, 0, 67, 68,
-		5, 68, 0, 0, 68, 4, 1, 0, 0, 0, 69, 70, 5, 79, 0, 0, 70, 71, 5, 82, 0,
-		0, 71, 6, 1, 0, 0, 0, 72, 73, 5, 69, 0, 0, 73, 85, 5, 81, 0, 0, 74, 75,
-		5, 78, 0, 0, 75, 85, 5, 69, 0, 0, 76, 77, 5, 71, 0, 0, 77, 85, 5, 69, 0,
-		0, 78, 79, 5, 71, 0, 0, 79, 85, 5, 84, 0, 0, 80, 81, 5, 76, 0, 0, 81, 85,
-		5, 84, 0, 0, 82, 83, 5, 76, 0, 0, 83, 85, 5, 69, 0, 0, 84, 72, 1, 0, 0,
-		0, 84, 74, 1, 0, 0, 0, 84, 76, 1, 0, 0, 0, 84, 78, 1, 0, 0, 0, 84, 80,
-		1, 0, 0, 0, 84, 82, 1, 0, 0, 0, 85, 8, 1, 0, 0, 0, 86, 87, 5, 85, 0, 0,
-		87, 88, 5, 78, 0, 0, 88, 89, 5, 73, 0, 0, 89, 90, 5, 81, 0, 0, 90, 91,
-		5, 85, 0, 0, 91, 92, 5, 69, 0, 0, 92, 10, 1, 0, 0, 0, 93, 94, 5, 82, 0,
-		0, 94, 95, 5, 69, 0, 0, 95, 96, 5, 80, 0, 0, 96, 12, 1, 0, 0, 0, 97, 98,
-		5, 73, 0, 0, 98, 99, 5, 78, 0, 0, 99, 14, 1, 0, 0, 0, 100, 101, 5, 65,
-		0, 0, 101, 102, 5, 83, 0, 0, 102, 16, 1, 0, 0, 0, 103, 104, 5, 67, 0, 0,
-		104, 105, 5, 66, 0, 0, 105, 106, 5, 70, 0, 0, 106, 18, 1, 0, 0, 0, 107,
-		108, 5, 83, 0, 0, 108, 109, 5, 69, 0, 0, 109, 110, 5, 76, 0, 0, 110, 111,
-		5, 69, 0, 0, 111, 112, 5, 67, 0, 0, 112, 113, 5, 84, 0, 0, 113, 20, 1,
-		0, 0, 0, 114, 115, 5, 70, 0, 0, 115, 116, 5, 82, 0, 0, 116, 117, 5, 79,
-		0, 0, 117, 118, 5, 77, 0, 0, 118, 22, 1, 0, 0, 0, 119, 120, 5, 70, 0, 0,
-		120, 121, 5, 73, 0, 0, 121, 122, 5, 76, 0, 0, 122, 123, 5, 84, 0, 0, 123,
-		124, 5, 69, 0, 0, 124, 125, 5, 82, 0, 0, 125, 24, 1, 0, 0, 0, 126, 127,
-		5, 42, 0, 0, 127, 26, 1, 0, 0, 0, 128, 129, 5, 83, 0, 0, 129, 130, 5, 65,
-		0, 0, 130, 131, 5, 77, 0, 0, 131, 132, 5, 69, 0, 0, 132, 28, 1, 0, 0, 0,
-		133, 134, 5, 68, 0, 0, 134, 135, 5, 73, 0, 0, 135, 136, 5, 83, 0, 0, 136,
-		137, 5, 84, 0, 0, 137, 138, 5, 73, 0, 0, 138, 139, 5, 78, 0, 0, 139, 140,
-		5, 67, 0, 0, 140, 141, 5, 84, 0, 0, 141, 30, 1, 0, 0, 0, 142, 143, 5, 40,
-		0, 0, 143, 32, 1, 0, 0, 0, 144, 145, 5, 41, 0, 0, 145, 34, 1, 0, 0, 0,
-		146, 147, 5, 64, 0, 0, 147, 36, 1, 0, 0, 0, 148, 153, 3, 41, 20, 0, 149,
-		152, 3, 39, 19, 0, 150, 152, 3, 41, 20, 0, 151, 149, 1, 0, 0, 0, 151, 150,
-		1, 0, 0, 0, 152, 155, 1, 0, 0, 0, 153, 151, 1, 0, 0, 0, 153, 154, 1, 0,
-		0, 0, 154, 38, 1, 0, 0, 0, 155, 153, 1, 0, 0, 0, 156, 157, 7, 0, 0, 0,
-		157, 40, 1, 0, 0, 0, 158, 159, 7, 1, 0, 0, 159, 42, 1, 0, 0, 0, 160, 164,
-		7, 2, 0, 0, 161, 163, 3, 39, 19, 0, 162, 161, 1, 0, 0, 0, 163, 166, 1,
-		0, 0, 0, 164, 162, 1, 0, 0, 0, 164, 165, 1, 0, 0, 0, 165, 44, 1, 0, 0,
-		0, 166, 164, 1, 0, 0, 0, 167, 168, 5, 48, 0, 0, 168, 46, 1, 0, 0, 0, 169,
-		174, 5, 34, 0, 0, 170, 173, 3, 49, 24, 0, 171, 173, 3, 57, 28, 0, 172,
-		170, 1, 0, 0, 0, 172, 171, 1, 0, 0, 0, 173, 176, 1, 0, 0, 0, 174, 172,
-		1, 0, 0, 0, 174, 175, 1, 0, 0, 0, 175, 177, 1, 0, 0, 0, 176, 174, 1, 0,
-		0, 0, 177, 188, 5, 34, 0, 0, 178, 183, 5, 39, 0, 0, 179, 182, 3, 49, 24,
-		0, 180, 182, 3, 55, 27, 0, 181, 179, 1, 0, 0, 0, 181, 180, 1, 0, 0, 0,
-		182, 185, 1, 0, 0, 0, 183, 181, 1, 0, 0, 0, 183, 184, 1, 0, 0, 0, 184,
-		186, 1, 0, 0, 0, 185, 183, 1, 0, 0, 0, 186, 188, 5, 39, 0, 0, 187, 169,
-		1, 0, 0, 0, 187, 178, 1, 0, 0, 0, 188, 48, 1, 0, 0, 0, 189, 192, 5, 92,
-		0, 0, 190, 193, 7, 3, 0, 0, 191, 193, 3, 51, 25, 0, 192, 190, 1, 0, 0,
-		0, 192, 191, 1, 0, 0, 0, 193, 50, 1, 0, 0, 0, 194, 195, 5, 117, 0, 0, 195,
-		196, 3, 53, 26, 0, 196, 197, 3, 53, 26, 0, 197, 198, 3, 53, 26, 0, 198,
-		199, 3, 53, 26, 0, 199, 52, 1, 0, 0, 0, 200, 201, 7, 4, 0, 0, 201, 54,
-		1, 0, 0, 0, 202, 203, 8, 5, 0, 0, 203, 56, 1, 0, 0, 0, 204, 205, 8, 6,
-		0, 0, 205, 58, 1, 0, 0, 0, 206, 208, 7, 7, 0, 0, 207, 206, 1, 0, 0, 0,
-		208, 209, 1, 0, 0, 0, 209, 207, 1, 0, 0, 0, 209, 210, 1, 0, 0, 0, 210,
-		211, 1, 0, 0, 0, 211, 212, 6, 29, 0, 0, 212, 60, 1, 0, 0, 0, 12, 0, 84,
-		151, 153, 164, 172, 174, 181, 183, 187, 192, 209, 1, 6, 0, 0,
+		2, 26, 7, 26, 2, 27, 7, 27, 2, 28, 7, 28, 2, 29, 7, 29, 2, 30, 7, 30, 2,
+		31, 7, 31, 1, 0, 1, 0, 1, 0, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 2,
+		1, 2, 1, 3, 1, 3, 1, 3, 1, 3, 1, 3, 1, 3, 1, 3, 1, 3, 1, 3, 1, 3, 1, 3,
+		1, 3, 3, 3, 89, 8, 3, 1, 4, 1, 4, 1, 4, 1, 4, 1, 4, 1, 4, 1, 4, 1, 5, 1,
+		5, 1, 5, 1, 5, 1, 6, 1, 6, 1, 6, 1, 7, 1, 7, 1, 7, 1, 8, 1, 8, 1, 8, 1,
+		9, 1, 9, 1, 9, 1, 9, 1, 10, 1, 10, 1, 10, 1, 10, 1, 10, 1, 10, 1, 10, 1,
+		11, 1, 11, 1, 11, 1, 11, 1, 11, 1, 12, 1, 12, 1, 12, 1, 12, 1, 12, 1, 12,
+		1, 12, 1, 13, 1, 13, 1, 14, 1, 14, 1, 15, 1, 15, 1, 15, 1, 15, 1, 15, 1,
+		16, 1, 16, 1, 16, 1, 16, 1, 16, 1, 16, 1, 16, 1, 16, 1, 16, 1, 17, 1, 17,
+		1, 18, 1, 18, 1, 19, 1, 19, 1, 20, 1, 20, 1, 20, 5, 20, 161, 8, 20, 10,
+		20, 12, 20, 164, 9, 20, 1, 21, 1, 21, 1, 22, 1, 22, 1, 23, 1, 23, 5, 23,
+		172, 8, 23, 10, 23, 12, 23, 175, 9, 23, 1, 24, 1, 24, 1, 25, 1, 25, 1,
+		25, 5, 25, 182, 8, 25, 10, 25, 12, 25, 185, 9, 25, 1, 25, 1, 25, 1, 25,
+		1, 25, 5, 25, 191, 8, 25, 10, 25, 12, 25, 194, 9, 25, 1, 25, 3, 25, 197,
+		8, 25, 1, 26, 1, 26, 1, 26, 3, 26, 202, 8, 26, 1, 27, 1, 27, 1, 27, 1,
+		27, 1, 27, 1, 27, 1, 28, 1, 28, 1, 29, 1, 29, 1, 30, 1, 30, 1, 31, 4, 31,
+		217, 8, 31, 11, 31, 12, 31, 218, 1, 31, 1, 31, 0, 0, 32, 1, 1, 3, 2, 5,
+		3, 7, 4, 9, 5, 11, 6, 13, 7, 15, 8, 17, 9, 19, 10, 21, 11, 23, 12, 25,
+		13, 27, 14, 29, 15, 31, 16, 33, 17, 35, 18, 37, 19, 39, 20, 41, 21, 43,
+		0, 45, 0, 47, 22, 49, 23, 51, 24, 53, 0, 55, 0, 57, 0, 59, 0, 61, 0, 63,
+		25, 1, 0, 8, 1, 0, 48, 57, 3, 0, 65, 90, 95, 95, 97, 122, 1, 0, 49, 57,
+		9, 0, 34, 34, 39, 39, 47, 47, 92, 92, 98, 98, 102, 102, 110, 110, 114,
+		114, 116, 116, 3, 0, 48, 57, 65, 70, 97, 102, 3, 0, 0, 31, 39, 39, 92,
+		92, 3, 0, 0, 31, 34, 34, 92, 92, 3, 0, 9, 10, 13, 13, 32, 32, 229, 0, 1,
+		1, 0, 0, 0, 0, 3, 1, 0, 0, 0, 0, 5, 1, 0, 0, 0, 0, 7, 1, 0, 0, 0, 0, 9,
+		1, 0, 0, 0, 0, 11, 1, 0, 0, 0, 0, 13, 1, 0, 0, 0, 0, 15, 1, 0, 0, 0, 0,
+		17, 1, 0, 0, 0, 0, 19, 1, 0, 0, 0, 0, 21, 1, 0, 0, 0, 0, 23, 1, 0, 0, 0,
+		0, 25, 1, 0, 0, 0, 0, 27, 1, 0, 0, 0, 0, 29, 1, 0, 0, 0, 0, 31, 1, 0, 0,
+		0, 0, 33, 1, 0, 0, 0, 0, 35, 1, 0, 0, 0, 0, 37, 1, 0, 0, 0, 0, 39, 1, 0,
+		0, 0, 0, 41, 1, 0, 0, 0, 0, 47, 1, 0, 0, 0, 0, 49, 1, 0, 0, 0, 0, 51, 1,
+		0, 0, 0, 0, 63, 1, 0, 0, 0, 1, 65, 1, 0, 0, 0, 3, 69, 1, 0, 0, 0, 5, 73,
+		1, 0, 0, 0, 7, 88, 1, 0, 0, 0, 9, 90, 1, 0, 0, 0, 11, 97, 1, 0, 0, 0, 13,
+		101, 1, 0, 0, 0, 15, 104, 1, 0, 0, 0, 17, 107, 1, 0, 0, 0, 19, 110, 1,
+		0, 0, 0, 21, 114, 1, 0, 0, 0, 23, 121, 1, 0, 0, 0, 25, 126, 1, 0, 0, 0,
+		27, 133, 1, 0, 0, 0, 29, 135, 1, 0, 0, 0, 31, 137, 1, 0, 0, 0, 33, 142,
+		1, 0, 0, 0, 35, 151, 1, 0, 0, 0, 37, 153, 1, 0, 0, 0, 39, 155, 1, 0, 0,
+		0, 41, 157, 1, 0, 0, 0, 43, 165, 1, 0, 0, 0, 45, 167, 1, 0, 0, 0, 47, 169,
+		1, 0, 0, 0, 49, 176, 1, 0, 0, 0, 51, 196, 1, 0, 0, 0, 53, 198, 1, 0, 0,
+		0, 55, 203, 1, 0, 0, 0, 57, 209, 1, 0, 0, 0, 59, 211, 1, 0, 0, 0, 61, 213,
+		1, 0, 0, 0, 63, 216, 1, 0, 0, 0, 65, 66, 5, 78, 0, 0, 66, 67, 5, 79, 0,
+		0, 67, 68, 5, 84, 0, 0, 68, 2, 1, 0, 0, 0, 69, 70, 5, 65, 0, 0, 70, 71,
+		5, 78, 0, 0, 71, 72, 5, 68, 0, 0, 72, 4, 1, 0, 0, 0, 73, 74, 5, 79, 0,
+		0, 74, 75, 5, 82, 0, 0, 75, 6, 1, 0, 0, 0, 76, 77, 5, 69, 0, 0, 77, 89,
+		5, 81, 0, 0, 78, 79, 5, 78, 0, 0, 79, 89, 5, 69, 0, 0, 80, 81, 5, 71, 0,
+		0, 81, 89, 5, 69, 0, 0, 82, 83, 5, 71, 0, 0, 83, 89, 5, 84, 0, 0, 84, 85,
+		5, 76, 0, 0, 85, 89, 5, 84, 0, 0, 86, 87, 5, 76, 0, 0, 87, 89, 5, 69, 0,
+		0, 88, 76, 1, 0, 0, 0, 88, 78, 1, 0, 0, 0, 88, 80, 1, 0, 0, 0, 88, 82,
+		1, 0, 0, 0, 88, 84, 1, 0, 0, 0, 88, 86, 1, 0, 0, 0, 89, 8, 1, 0, 0, 0,
+		90, 91, 5, 85, 0, 0, 91, 92, 5, 78, 0, 0, 92, 93, 5, 73, 0, 0, 93, 94,
+		5, 81, 0, 0, 94, 95, 5, 85, 0, 0, 95, 96, 5, 69, 0, 0, 96, 10, 1, 0, 0,
+		0, 97, 98, 5, 82, 0, 0, 98, 99, 5, 69, 0, 0, 99, 100, 5, 80, 0, 0, 100,
+		12, 1, 0, 0, 0, 101, 102, 5, 69, 0, 0, 102, 103, 5, 67, 0, 0, 103, 14,
+		1, 0, 0, 0, 104, 105, 5, 73, 0, 0, 105, 106, 5, 78, 0, 0, 106, 16, 1, 0,
+		0, 0, 107, 108, 5, 65, 0, 0, 108, 109, 5, 83, 0, 0, 109, 18, 1, 0, 0, 0,
+		110, 111, 5, 67, 0, 0, 111, 112, 5, 66, 0, 0, 112, 113, 5, 70, 0, 0, 113,
+		20, 1, 0, 0, 0, 114, 115, 5, 83, 0, 0, 115, 116, 5, 69, 0, 0, 116, 117,
+		5, 76, 0, 0, 117, 118, 5, 69, 0, 0, 118, 119, 5, 67, 0, 0, 119, 120, 5,
+		84, 0, 0, 120, 22, 1, 0, 0, 0, 121, 122, 5, 70, 0, 0, 122, 123, 5, 82,
+		0, 0, 123, 124, 5, 79, 0, 0, 124, 125, 5, 77, 0, 0, 125, 24, 1, 0, 0, 0,
+		126, 127, 5, 70, 0, 0, 127, 128, 5, 73, 0, 0, 128, 129, 5, 76, 0, 0, 129,
+		130, 5, 84, 0, 0, 130, 131, 5, 69, 0, 0, 131, 132, 5, 82, 0, 0, 132, 26,
+		1, 0, 0, 0, 133, 134, 5, 42, 0, 0, 134, 28, 1, 0, 0, 0, 135, 136, 5, 46,
+		0, 0, 136, 30, 1, 0, 0, 0, 137, 138, 5, 83, 0, 0, 138, 139, 5, 65, 0, 0,
+		139, 140, 5, 77, 0, 0, 140, 141, 5, 69, 0, 0, 141, 32, 1, 0, 0, 0, 142,
+		143, 5, 68, 0, 0, 143, 144, 5, 73, 0, 0, 144, 145, 5, 83, 0, 0, 145, 146,
+		5, 84, 0, 0, 146, 147, 5, 73, 0, 0, 147, 148, 5, 78, 0, 0, 148, 149, 5,
+		67, 0, 0, 149, 150, 5, 84, 0, 0, 150, 34, 1, 0, 0, 0, 151, 152, 5, 40,
+		0, 0, 152, 36, 1, 0, 0, 0, 153, 154, 5, 41, 0, 0, 154, 38, 1, 0, 0, 0,
+		155, 156, 5, 64, 0, 0, 156, 40, 1, 0, 0, 0, 157, 162, 3, 45, 22, 0, 158,
+		161, 3, 43, 21, 0, 159, 161, 3, 45, 22, 0, 160, 158, 1, 0, 0, 0, 160, 159,
+		1, 0, 0, 0, 161, 164, 1, 0, 0, 0, 162, 160, 1, 0, 0, 0, 162, 163, 1, 0,
+		0, 0, 163, 42, 1, 0, 0, 0, 164, 162, 1, 0, 0, 0, 165, 166, 7, 0, 0, 0,
+		166, 44, 1, 0, 0, 0, 167, 168, 7, 1, 0, 0, 168, 46, 1, 0, 0, 0, 169, 173,
+		7, 2, 0, 0, 170, 172, 3, 43, 21, 0, 171, 170, 1, 0, 0, 0, 172, 175, 1,
+		0, 0, 0, 173, 171, 1, 0, 0, 0, 173, 174, 1, 0, 0, 0, 174, 48, 1, 0, 0,
+		0, 175, 173, 1, 0, 0, 0, 176, 177, 5, 48, 0, 0, 177, 50, 1, 0, 0, 0, 178,
+		183, 5, 34, 0, 0, 179, 182, 3, 53, 26, 0, 180, 182, 3, 61, 30, 0, 181,
+		179, 1, 0, 0, 0, 181, 180, 1, 0, 0, 0, 182, 185, 1, 0, 0, 0, 183, 181,
+		1, 0, 0, 0, 183, 184, 1, 0, 0, 0, 184, 186, 1, 0, 0, 0, 185, 183, 1, 0,
+		0, 0, 186, 197, 5, 34, 0, 0, 187, 192, 5, 39, 0, 0, 188, 191, 3, 53, 26,
+		0, 189, 191, 3, 59, 29, 0, 190, 188, 1, 0, 0, 0, 190, 189, 1, 0, 0, 0,
+		191, 194, 1, 0, 0, 0, 192, 190, 1, 0, 0, 0, 192, 193, 1, 0, 0, 0, 193,
+		195, 1, 0, 0, 0, 194, 192, 1, 0, 0, 0, 195, 197, 5, 39, 0, 0, 196, 178,
+		1, 0, 0, 0, 196, 187, 1, 0, 0, 0, 197, 52, 1, 0, 0, 0, 198, 201, 5, 92,
+		0, 0, 199, 202, 7, 3, 0, 0, 200, 202, 3, 55, 27, 0, 201, 199, 1, 0, 0,
+		0, 201, 200, 1, 0, 0, 0, 202, 54, 1, 0, 0, 0, 203, 204, 5, 117, 0, 0, 204,
+		205, 3, 57, 28, 0, 205, 206, 3, 57, 28, 0, 206, 207, 3, 57, 28, 0, 207,
+		208, 3, 57, 28, 0, 208, 56, 1, 0, 0, 0, 209, 210, 7, 4, 0, 0, 210, 58,
+		1, 0, 0, 0, 211, 212, 8, 5, 0, 0, 212, 60, 1, 0, 0, 0, 213, 214, 8, 6,
+		0, 0, 214, 62, 1, 0, 0, 0, 215, 217, 7, 7, 0, 0, 216, 215, 1, 0, 0, 0,
+		217, 218, 1, 0, 0, 0, 218, 216, 1, 0, 0, 0, 218, 219, 1, 0, 0, 0, 219,
+		220, 1, 0, 0, 0, 220, 221, 6, 31, 0, 0, 221, 64, 1, 0, 0, 0, 12, 0, 88,
+		160, 162, 173, 181, 183, 190, 192, 196, 201, 218, 1, 6, 0, 0,
 	}
 	deserializer := antlr.NewATNDeserializer(nil)
 	staticData.atn = deserializer.Deserialize(staticData.serializedATN)
@@ -202,21 +206,23 @@ const (
 	QueryLexerSIMPLE_OP       = 4
 	QueryLexerUNIQUE          = 5
 	QueryLexerREP             = 6
-	QueryLexerIN              = 7
-	QueryLexerAS              = 8
-	QueryLexerCBF             = 9
-	QueryLexerSELECT          = 10
-	QueryLexerFROM            = 11
-	QueryLexerFILTER          = 12
-	QueryLexerWILDCARD        = 13
-	QueryLexerCLAUSE_SAME     = 14
-	QueryLexerCLAUSE_DISTINCT = 15
-	QueryLexerL_PAREN         = 16
-	QueryLexerR_PAREN         = 17
-	QueryLexerAT              = 18
-	QueryLexerIDENT           = 19
-	QueryLexerNUMBER1         = 20
-	QueryLexerZERO            = 21
-	QueryLexerSTRING          = 22
-	QueryLexerWS              = 23
+	QueryLexerEC              = 7
+	QueryLexerIN              = 8
+	QueryLexerAS              = 9
+	QueryLexerCBF             = 10
+	QueryLexerSELECT          = 11
+	QueryLexerFROM            = 12
+	QueryLexerFILTER          = 13
+	QueryLexerWILDCARD        = 14
+	QueryLexerDOT             = 15
+	QueryLexerCLAUSE_SAME     = 16
+	QueryLexerCLAUSE_DISTINCT = 17
+	QueryLexerL_PAREN         = 18
+	QueryLexerR_PAREN         = 19
+	QueryLexerAT              = 20
+	QueryLexerIDENT           = 21
+	QueryLexerNUMBER1         = 22
+	QueryLexerZERO            = 23
+	QueryLexerSTRING          = 24
+	QueryLexerWS              = 25
 )

netmap/parser/query_visitor.go

@@ -1,4 +1,4 @@
-// Code generated from Query.g4 by ANTLR 4.13.0. DO NOT EDIT.
+// Code generated from /repo/frostfs/sdk-go/netmap/parser/Query.g4 by ANTLR 4.13.0. DO NOT EDIT.
 
 package parser // Query
 
@@ -14,6 +14,9 @@ type QueryVisitor interface {
 	// Visit a parse tree produced by Query#selectFilterExpr.
 	VisitSelectFilterExpr(ctx *SelectFilterExprContext) interface{}
 
+	// Visit a parse tree produced by Query#ecStmt.
+	VisitEcStmt(ctx *EcStmtContext) interface{}
+
 	// Visit a parse tree produced by Query#repStmt.
 	VisitRepStmt(ctx *RepStmtContext) interface{}
 

netmap/policy.go

@@ -34,8 +34,17 @@ type PlacementPolicy struct {
 
 func (p *PlacementPolicy) readFromV2(m netmap.PlacementPolicy, checkFieldPresence bool) error {
 	p.replicas = m.GetReplicas()
-	if checkFieldPresence && len(p.replicas) == 0 {
-		return errors.New("missing replicas")
+	if checkFieldPresence {
+		if len(p.replicas) == 0 {
+			return errors.New("missing replicas")
+		}
+		if len(p.replicas) != 1 {
+			for i := range p.replicas {
+				if p.replicas[i].GetECDataCount() != 0 || p.replicas[i].GetECParityCount() != 0 {
+					return errors.New("erasure code group must be used exclusively")
+				}
+			}
+		}
 	}
 
 	p.backupFactor = m.GetContainerBackupFactor()
@@ -130,6 +139,14 @@ func (r *ReplicaDescriptor) SetNumberOfObjects(c uint32) {
 	r.m.SetCount(c)
 }
 
+func (r *ReplicaDescriptor) SetECDataCount(v uint32) {
+	r.m.SetECDataCount(v)
+}
+
+func (r *ReplicaDescriptor) SetECParityCount(v uint32) {
+	r.m.SetECParityCount(v)
+}
+
 // NumberOfObjects returns number set using SetNumberOfObjects.
 //
 // Zero ReplicaDescriptor has zero number of objects.
@@ -137,6 +154,19 @@ func (r ReplicaDescriptor) NumberOfObjects() uint32 {
 	return r.m.GetCount()
 }
 
+func (r ReplicaDescriptor) GetECDataCount() uint32 {
+	return r.m.GetECDataCount()
+}
+
+func (r ReplicaDescriptor) GetECParityCount() uint32 {
+	return r.m.GetECParityCount()
+}
+
+// TotalECPartCount returns total sum of ECDataCount and ECParityCount.
+func (r ReplicaDescriptor) TotalECPartCount() uint32 {
+	return r.m.GetECDataCount() + r.m.GetECParityCount()
+}
+
 // SetSelectorName sets name of the related Selector.
 //
 // Zero ReplicaDescriptor references to the root bucket's selector: it contains
@@ -170,10 +200,19 @@ func (p PlacementPolicy) NumberOfReplicas() int {
 // descriptor. Index MUST be in range [0; NumberOfReplicas()).
 //
 // Zero PlacementPolicy has no replicas.
+//
+// Deprecated: Use PlacementPolicy.ReplicaDescriptor(int).NumberOfObjects() instead.
 func (p PlacementPolicy) ReplicaNumberByIndex(i int) uint32 {
 	return p.replicas[i].GetCount()
 }
 
+// ReplicaDescriptor returns i-th replica descriptor. Index MUST be in range [0; NumberOfReplicas()).
+func (p PlacementPolicy) ReplicaDescriptor(i int) ReplicaDescriptor {
+	return ReplicaDescriptor{
+		m: p.replicas[i],
+	}
+}
+
 // SetContainerBackupFactor sets container backup factor: it controls how deep
 // FrostFS will search for nodes alternatives to include into container's nodes subset.
 //
@@ -217,6 +256,11 @@ func (s *Selector) SelectByBucketAttribute(bucket string) {
 	s.m.SetAttribute(bucket)
 }
 
+// SetClause sets the clause for the Selector.
+func (s *Selector) SetClause(clause netmap.Clause) {
+	s.m.SetClause(clause)
+}
+
 // SelectSame makes selection algorithm to select only nodes having the same values
 // of the bucket attribute.
 //
@@ -388,10 +432,14 @@ func (p PlacementPolicy) WriteStringTo(w io.StringWriter) (err error) {
 		c := p.replicas[i].GetCount()
 		s := p.replicas[i].GetSelector()
 
-		if s != "" {
-			_, err = w.WriteString(fmt.Sprintf("%sREP %d IN %s", delim, c, s))
-		} else {
+		if c != 0 {
 			_, err = w.WriteString(fmt.Sprintf("%sREP %d", delim, c))
+		} else {
+			ecx, ecy := p.replicas[i].GetECDataCount(), p.replicas[i].GetECParityCount()
+			_, err = w.WriteString(fmt.Sprintf("%sEC %d.%d", delim, ecx, ecy))
+		}
+		if s != "" {
+			_, err = w.WriteString(fmt.Sprintf(" IN %s", s))
 		}
 
 		if err != nil {
@@ -455,7 +503,7 @@ func (p PlacementPolicy) WriteStringTo(w io.StringWriter) (err error) {
 			return err
 		}
 
-		err = writeFilterStringTo(w, p.filters[i])
+		err = writeFilterStringTo(w, p.filters[i], false)
 		if err != nil {
 			return err
 		}
@@ -464,7 +512,7 @@ func (p PlacementPolicy) WriteStringTo(w io.StringWriter) (err error) {
 	return nil
 }
 
-func writeFilterStringTo(w io.StringWriter, f netmap.Filter) error {
+func writeFilterStringTo(w io.StringWriter, f netmap.Filter, mayNeedOuterBrackets bool) error {
 	var err error
 	var s string
 	op := f.GetOp()
@@ -489,7 +537,7 @@ func writeFilterStringTo(w io.StringWriter, f netmap.Filter) error {
 		if err != nil {
 			return err
 		}
-		err = writeFilterStringTo(w, inner[0])
+		err = writeFilterStringTo(w, inner[0], false)
 		if err != nil {
 			return err
 		}
@@ -498,6 +546,13 @@ func writeFilterStringTo(w io.StringWriter, f netmap.Filter) error {
 			return err
 		}
 	} else {
+		useBrackets := mayNeedOuterBrackets && op == netmap.OR && len(inner) > 1
+		if useBrackets {
+			_, err = w.WriteString("(")
+			if err != nil {
+				return err
+			}
+		}
 		for i := range inner {
 			if i != 0 {
 				_, err = w.WriteString(" " + op.String() + " ")
@@ -505,7 +560,13 @@ func writeFilterStringTo(w io.StringWriter, f netmap.Filter) error {
 					return err
 				}
 			}
-			err = writeFilterStringTo(w, inner[i])
+			err = writeFilterStringTo(w, inner[i], true)
+			if err != nil {
+				return err
+			}
+		}
+		if useBrackets {
+			_, err = w.WriteString(")")
 			if err != nil {
 				return err
 			}
@@ -612,6 +673,8 @@ var (
 		"make sure to pair REP and SELECT clauses: \"REP .. IN X\" + \"SELECT ... AS X\"")
 	// errRedundantSelector is returned for errors found by filters policy validator.
 	errRedundantFilter = errors.New("policy: found redundant filter")
+	// errECFewSelectors is returned when EC keyword is used without UNIQUE keyword.
+	errECFewSelectors = errors.New("policy: too few nodes to select")
 )
 
 type policyVisitor struct {
@@ -639,11 +702,18 @@ func (p *policyVisitor) VisitPolicy(ctx *parser.PolicyContext) any {
 
 	pl.unique = ctx.UNIQUE() != nil
 
-	repStmts := ctx.AllRepStmt()
-	pl.replicas = make([]netmap.Replica, 0, len(repStmts))
-
-	for _, r := range repStmts {
-		res, ok := r.Accept(p).(*netmap.Replica)
+	stmts := ctx.GetChildren()
+	for _, r := range stmts {
+		var res *netmap.Replica
+		var ok bool
+		switch r := r.(type) {
+		case parser.IRepStmtContext:
+			res, ok = r.Accept(p).(*netmap.Replica)
+		case parser.IEcStmtContext:
+			res, ok = r.Accept(p).(*netmap.Replica)
+		default:
+			continue
+		}
 		if !ok {
 			return nil
 		}
@@ -740,6 +810,28 @@ func (p *policyVisitor) VisitRepStmt(ctx *parser.RepStmtContext) any {
 	return rs
 }
 
+// VisitRepStmt implements parser.QueryVisitor interface.
+func (p *policyVisitor) VisitEcStmt(ctx *parser.EcStmtContext) any {
+	dataCount, err := strconv.ParseUint(ctx.GetData().GetText(), 10, 32)
+	if err != nil {
+		return p.reportError(errInvalidNumber)
+	}
+	parityCount, err := strconv.ParseUint(ctx.GetParity().GetText(), 10, 32)
+	if err != nil {
+		return p.reportError(errInvalidNumber)
+	}
+
+	rs := new(netmap.Replica)
+	rs.SetECDataCount(uint32(dataCount))
+	rs.SetECParityCount(uint32(parityCount))
+
+	if sel := ctx.GetSelector(); sel != nil {
+		rs.SetSelector(sel.GetText())
+	}
+
+	return rs
+}
+
 // VisitSelectStmt implements parser.QueryVisitor interface.
 func (p *policyVisitor) VisitSelectStmt(ctx *parser.SelectStmtContext) any {
 	res, err := strconv.ParseUint(ctx.GetCount().GetText(), 10, 32)
@@ -892,6 +984,14 @@ func validatePolicy(p PlacementPolicy) error {
 			if seenSelectors[selName] == nil {
 				return fmt.Errorf("%w: '%s'", errUnknownSelector, selName)
 			}
+
+			dataCount := p.replicas[i].GetECDataCount()
+			parityCount := p.replicas[i].GetECParityCount()
+			if dataCount != 0 || parityCount != 0 {
+				if c := seenSelectors[selName].GetCount(); c < dataCount+parityCount {
+					return fmt.Errorf("%w: %d < %d + %d", errECFewSelectors, c, dataCount, parityCount)
+				}
+			}
 		}
 	}
 
@@ -922,10 +1022,14 @@ func operationFromString(s string) (op netmap.Operation) {
 	return
 }
 
-// escapeString returns single quote wrapped string if it contains special
-// characters '-' and whitespace.
+// escapeString returns single quote wrapped string.
+// Wrapping rules must be kept in sync with QueryLexer.g4.
+// Currently only ASCII letters, digits and underscore can be parsed without quotes.
 func escapeString(s string) string {
-	if strings.ContainsAny(s, " -\t") {
+	for _, r := range s {
+		if 'a' <= r && r <= 'z' || 'A' <= r && r <= 'Z' || '0' <= r && r <= '9' || r == '_' {
+			continue
+		}
 		return "'" + s + "'"
 	}
 	return s

netmap/policy_decode_test.go

@@ -7,43 +7,50 @@ import (
 	"github.com/stretchr/testify/require"
 )
 
-func TestDecodeString(t *testing.T) {
-	testCases := []string{
-		`REP 2
+var validPlacementPolicy = []string{
+	`REP 2
 CBF 2
 SELECT 2 FROM *`,
-		`REP 1 IN X
+	`REP 1 IN X
 CBF 1
 SELECT 2 IN SAME Location FROM * AS X`,
 
-		`REP 1 IN X
+	`REP 1 IN X
 REP 2 IN Y
 CBF 1
 SELECT 2 FROM * AS X
 SELECT 3 FROM * AS Y`,
 
-		`REP 1 IN X
+	`REP 1 IN X
 SELECT 2 IN City FROM Good AS X
 FILTER Country EQ RU AS FromRU
 FILTER Country EQ EN AS FromEN
 FILTER @FromRU AND @FromEN AND Rating GT 7 AS Good`,
 
-		`REP 7 IN SPB
+	`REP 7 IN SPB
 SELECT 1 IN City FROM SPBSSD AS SPB
 FILTER City EQ SPB AND SSD EQ true OR City EQ SPB AND Rating GE 5 AS SPBSSD`,
 
-		`REP 7 IN SPB
+	`REP 7 IN SPB
 SELECT 1 IN City FROM SPBSSD AS SPB
 FILTER NOT (NOT (City EQ SPB) AND SSD EQ true OR City EQ SPB AND Rating GE 5) AS SPBSSD`,
 
-		`UNIQUE
+	`REP 1 IN FNODE
+CBF 1
+SELECT 1 FROM F AS FNODE
+FILTER Node EQ '10.78.8.11' AS F`,
+
+	`UNIQUE
 REP 1
 REP 1`,
-	}
+	`EC 1.2 IN X
+SELECT 3 IN City FROM * AS X`,
+}
 
+func TestDecodeString(t *testing.T) {
 	var p PlacementPolicy
 
-	for _, testCase := range testCases {
+	for _, testCase := range validPlacementPolicy {
 		require.NoError(t, p.DecodeString(testCase), "unable parse %s", testCase)
 		var b strings.Builder
 		require.NoError(t, p.WriteStringTo(&b))

netmap/policy_fuzz.go

@@ -0,0 +1,14 @@
+//go:build gofuzz
+// +build gofuzz
+
+package netmap
+
+func DoFuzzPlacementPolicyDecode(data []byte) int {
+	p := string(data)
+	if p == "" {
+		return 0
+	}
+	var pp PlacementPolicy
+	_ = pp.DecodeString(p)
+	return 1
+}

netmap/policy_fuzz_test.go

@@ -0,0 +1,17 @@
+//go:build gofuzz
+// +build gofuzz
+
+package netmap
+
+import (
+	"testing"
+)
+
+func FuzzDecodeString(f *testing.F) {
+	for _, pp := range validPlacementPolicy {
+		f.Add([]byte(pp))
+	}
+	f.Fuzz(func(t *testing.T, data []byte) {
+		DoFuzzPlacementPolicyDecode(data)
+	})
+}

netmap/policy_test.go

@@ -1,6 +1,7 @@
 package netmap_test
 
 import (
+	"strings"
 	"testing"
 
 	. "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/netmap"
@@ -29,6 +30,79 @@ func TestPlacementPolicyEncoding(t *testing.T) {
 	})
 }
 
+func TestPlacementPolicyWriteString(t *testing.T) {
+	testCases := []struct {
+		name   string
+		input  string
+		output string // If the output is empty, make it equal to input.
+	}{
+		{
+			name: "no compound operators",
+			input: `REP 1
+CBF 1
+SELECT 1 FROM Color
+FILTER Color EQ Red AS Color`,
+		},
+		{
+			name: "no brackets in single level same-operator chain",
+			input: `REP 1
+CBF 1
+SELECT 1 FROM Color
+FILTER Color EQ Red OR Color EQ Blue OR Color EQ Green AS Color`,
+		},
+		{
+			name: "no brackets aroung higher precedence op",
+			input: `REP 1
+CBF 1
+SELECT 1 FROM Color
+FILTER Color EQ Red OR Color EQ Blue AND Color NE Green AS Color`,
+		},
+		{
+			name: "no brackets aroung higher precedence op, even if present in the input",
+			input: `REP 1
+CBF 1
+SELECT 1 FROM Color
+FILTER Color EQ Red OR (Color EQ Blue AND Color NE Green) AS Color`,
+			output: `REP 1
+CBF 1
+SELECT 1 FROM Color
+FILTER Color EQ Red OR Color EQ Blue AND Color NE Green AS Color`,
+		},
+		{
+			name: "brackets aroung lower precedence op",
+			input: `REP 1
+CBF 1
+SELECT 1 FROM Color
+FILTER (Color EQ Red OR Color EQ Blue) AND Color NE Green AS Color`,
+		},
+		{
+			name: "no extra brackets for bracketed same-operator chain",
+			input: `REP 1
+CBF 1
+SELECT 1 FROM Color
+FILTER (Color EQ Red OR Color EQ Blue OR Color EQ Yellow) AND Color NE Green AS Color`,
+		},
+	}
+
+	for _, tc := range testCases {
+		var p PlacementPolicy
+		require.NoError(t, p.DecodeString(tc.input))
+
+		var sb strings.Builder
+		require.NoError(t, p.WriteStringTo(&sb))
+
+		if tc.output == "" {
+			require.Equal(t, tc.input, sb.String())
+		} else {
+			require.Equal(t, tc.output, sb.String())
+
+			var p1 PlacementPolicy
+			require.NoError(t, p1.DecodeString(tc.output))
+			require.Equal(t, p, p1)
+		}
+	}
+}
+
 func TestDecodeSelectFilterExpr(t *testing.T) {
 	for _, s := range []string{
 		"SELECT 1 FROM *",

netmap/selector.go

@@ -1,8 +1,9 @@
 package netmap
 
 import (
+	"cmp"
 	"fmt"
-	"sort"
+	"slices"
 
 	"git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/netmap"
 	"git.frostfs.info/TrueCloudLab/hrw"
@@ -70,12 +71,12 @@ func (c *context) getSelection(s netmap.Selector) ([]nodes, error) {
 	// we also need to have deterministic input to HRW sorting routine.
 	if len(c.hrwSeed) == 0 {
 		if s.GetAttribute() == "" {
-			sort.Slice(buckets, func(i, j int) bool {
-				return less(buckets[i].nodes[0], buckets[j].nodes[0])
+			slices.SortFunc(buckets, func(b1, b2 nodeAttrPair) int {
+				return cmp.Compare(b1.nodes[0].Hash(), b2.nodes[0].Hash())
 			})
 		} else {
-			sort.Slice(buckets, func(i, j int) bool {
-				return buckets[i].attr < buckets[j].attr
+			slices.SortFunc(buckets, func(b1, b2 nodeAttrPair) int {
+				return cmp.Compare(b1.attr, b2.attr)
 			})
 		}
 	}
@@ -103,8 +104,10 @@ func (c *context) getSelection(s netmap.Selector) ([]nodes, error) {
 
 	if len(c.hrwSeed) != 0 {
 		weights := make([]float64, len(res))
+		a := new(meanIQRAgg)
 		for i := range res {
-			weights[i] = calcBucketWeight(res[i], newMeanIQRAgg(), c.weightFunc)
+			a.clear()
+			weights[i] = calcBucketWeight(res[i], a, c.weightFunc)
 		}
 
 		hrw.SortHasherSliceByWeightValue(res, weights, c.hrwSeedHash)
@@ -168,8 +171,10 @@ func (c *context) getSelectionBase(s netmap.Selector) []nodeAttrPair {
 	}
 
 	if len(c.hrwSeed) != 0 {
+		var ws []float64
 		for i := range result {
-			hrw.SortHasherSliceByWeightValue(result[i].nodes, result[i].nodes.weights(c.weightFunc), c.hrwSeedHash)
+			ws = result[i].nodes.appendWeightsTo(c.weightFunc, ws[:0])
+			hrw.SortHasherSliceByWeightValue(result[i].nodes, ws, c.hrwSeedHash)
 		}
 	}
 

netmap/selector_test.go

@@ -1,11 +1,12 @@
 package netmap
 
 import (
+	"cmp"
 	"crypto/rand"
 	"encoding/binary"
 	"fmt"
 	mrand "math/rand"
-	"sort"
+	"slices"
 	"strconv"
 	"testing"
 
@@ -85,8 +86,8 @@ func BenchmarkHRWSort(b *testing.B) {
 			copy(realNodes, vectors)
 			b.StartTimer()
 
-			sort.Slice(vectors, func(i, j int) bool {
-				return less(vectors[i][0], vectors[j][0])
+			slices.SortFunc(vectors, func(vi, vj nodes) int {
+				return cmp.Compare(vi[0].Hash(), vj[0].Hash())
 			})
 			hrw.SortSliceByWeightIndex(realNodes, weights, pivot)
 		}
@@ -99,10 +100,12 @@ func BenchmarkPolicyHRWType(b *testing.B) {
 	p := newPlacementPolicy(1,
 		[]ReplicaDescriptor{
 			newReplica(1, "loc1"),
-			newReplica(1, "loc2")},
+			newReplica(1, "loc2"),
+		},
 		[]Selector{
 			newSelector("loc1", "Location", 1, "loc1", (*Selector).SelectSame),
-			newSelector("loc2", "Location", 1, "loc2", (*Selector).SelectSame)},
+			newSelector("loc2", "Location", 1, "loc2", (*Selector).SelectSame),
+		},
 		[]Filter{
 			newFilter("loc1", "Location", "Shanghai", netmap.EQ),
 			newFilter("loc2", "Location", "Shanghai", netmap.NE),
@@ -144,10 +147,12 @@ func TestPlacementPolicy_DeterministicOrder(t *testing.T) {
 	p := newPlacementPolicy(1,
 		[]ReplicaDescriptor{
 			newReplica(1, "loc1"),
-			newReplica(1, "loc2")},
+			newReplica(1, "loc2"),
+		},
 		[]Selector{
 			newSelector("loc1", "Location", 1, "loc1", (*Selector).SelectSame),
-			newSelector("loc2", "Location", 1, "loc2", (*Selector).SelectSame)},
+			newSelector("loc2", "Location", 1, "loc2", (*Selector).SelectSame),
+		},
 		[]Filter{
 			newFilter("loc1", "Location", "Shanghai", netmap.EQ),
 			newFilter("loc2", "Location", "Shanghai", netmap.NE),

netmap/yml_test.go

@@ -1,6 +1,7 @@
 package netmap
 
 import (
+	"encoding/base64"
 	"encoding/json"
 	"fmt"
 	"os"
@@ -8,24 +9,41 @@ import (
 	"testing"
 
 	"github.com/stretchr/testify/require"
+	"gopkg.in/yaml.v3"
 )
 
 // TestCase represents collection of placement policy tests for a single node set.
 type TestCase struct {
-	Name  string     `json:"name"`
-	Nodes []NodeInfo `json:"nodes"`
+	Name  string     `json:"name" yaml:"name"`
+	Nodes []NodeInfo `json:"nodes" yaml:"nodes"`
 	Tests map[string]struct {
-		Policy    PlacementPolicy `json:"policy"`
-		Pivot     []byte          `json:"pivot,omitempty"`
-		Result    [][]int         `json:"result,omitempty"`
-		Error     string          `json:"error,omitempty"`
+		Policy    PlacementPolicy
+		Pivot     Base64
+		Result    [][]int `json:"result,omitempty" yaml:"result,omitempty"`
+		Error     string  `json:"error,omitempty" yaml:"error,omitempty"`
 		Placement struct {
-			Pivot  []byte
-			Result [][]int
-		} `json:"placement,omitempty"`
+			Pivot  Base64  `json:"pivot" yaml:"pivot"`
+			Result [][]int `json:"result,omitempty" yaml:"result,omitempty"`
+		} `json:"placement,omitempty" yaml:"placement,omitempty"`
 	}
 }
 
+// Base64 is a type that will hold the decoded Base64 data.
+type Base64 []byte
+
+func (b *Base64) UnmarshalYAML(unmarshal func(interface{}) error) error {
+	var base64Str string
+	if err := unmarshal(&base64Str); err != nil {
+		return err
+	}
+	decodedBytes, err := base64.StdEncoding.DecodeString(base64Str)
+	if err != nil {
+		return err
+	}
+	*b = decodedBytes
+	return nil
+}
+
 var _, _ json.Unmarshaler = new(NodeInfo), new(PlacementPolicy)
 
 func compareNodes(t testing.TB, expected [][]int, nodes nodes, actual [][]NodeInfo) {
@@ -39,7 +57,7 @@ func compareNodes(t testing.TB, expected [][]int, nodes nodes, actual [][]NodeIn
 }
 
 func TestPlacementPolicy_Interopability(t *testing.T) {
-	const testsDir = "./json_tests"
+	const testsDir = "./yml_tests"
 
 	f, err := os.Open(testsDir)
 	require.NoError(t, err)
@@ -53,7 +71,7 @@ func TestPlacementPolicy_Interopability(t *testing.T) {
 		require.NoError(t, err)
 
 		var tc TestCase
-		require.NoError(t, json.Unmarshal(bs, &tc), "cannot unmarshal %s", ds[i].Name())
+		require.NoError(t, yaml.Unmarshal(bs, &tc), "cannot unmarshal %s", ds[i].Name())
 
 		srcNodes := make([]NodeInfo, len(tc.Nodes))
 		copy(srcNodes, tc.Nodes)
@@ -88,7 +106,7 @@ func TestPlacementPolicy_Interopability(t *testing.T) {
 }
 
 func BenchmarkPlacementPolicyInteropability(b *testing.B) {
-	const testsDir = "./json_tests"
+	const testsDir = "./yml_tests"
 
 	f, err := os.Open(testsDir)
 	require.NoError(b, err)
@@ -101,7 +119,7 @@ func BenchmarkPlacementPolicyInteropability(b *testing.B) {
 		require.NoError(b, err)
 
 		var tc TestCase
-		require.NoError(b, json.Unmarshal(bs, &tc), "cannot unmarshal %s", ds[i].Name())
+		require.NoError(b, yaml.Unmarshal(bs, &tc), "cannot unmarshal %s", ds[i].Name())
 
 		b.Run(tc.Name, func(b *testing.B) {
 			var nm NetMap
@@ -140,12 +158,12 @@ func BenchmarkPlacementPolicyInteropability(b *testing.B) {
 }
 
 func BenchmarkManySelects(b *testing.B) {
-	testsFile := filepath.Join("json_tests", "many_selects.json")
+	testsFile := filepath.Join("yml_tests", "many_selects.yml")
 	bs, err := os.ReadFile(testsFile)
 	require.NoError(b, err)
 
 	var tc TestCase
-	require.NoError(b, json.Unmarshal(bs, &tc))
+	require.NoError(b, yaml.Unmarshal(bs, &tc))
 	tt, ok := tc.Tests["Select"]
 	require.True(b, ok)
 

netmap/yml_tests/cbf_default.yml

@@ -0,0 +1,48 @@
+name: default CBF is 3
+nodes:
+  - attributes:
+      - key: Location
+        value: Europe
+      - key: Country
+        value: RU
+      - key: City
+        value: St.Petersburg
+  - attributes:
+      - key: Location
+        value: Europe
+      - key: Country
+        value: RU
+      - key: City
+        value: Moscow
+  - attributes:
+      - key: Location
+        value: Europe
+      - key: Country
+        value: DE
+      - key: City
+        value: Berlin
+  - attributes:
+      - key: Location
+        value: Europe
+      - key: Country
+        value: FR
+      - key: City
+        value: Paris
+tests:
+  set default CBF:
+    policy:
+      replicas:
+        - count: 1
+          selector: EU
+      containerBackupFactor: 0
+      selectors:
+        - name: EU
+          count: 1
+          clause: SAME
+          attribute: Location
+          filter: '*'
+      filters: []
+    result:
+      - - 0
+        - 1
+        - 2

netmap/yml_tests/cbf_minimal.yml

@@ -0,0 +1,52 @@
+name: Real node count multiplier is in range [1, specified CBF]
+nodes:
+  - attributes:
+      - key: ID
+        value: '1'
+      - key: Country
+        value: DE
+  - attributes:
+      - key: ID
+        value: '2'
+      - key: Country
+        value: DE
+  - attributes:
+      - key: ID
+        value: '3'
+      - key: Country
+        value: DE
+tests:
+  select 2, CBF is 2:
+    policy:
+      replicas:
+        - count: 1
+          selector: X
+      containerBackupFactor: 2
+      selectors:
+        - name: X
+          count: 2
+          clause: SAME
+          attribute: Country
+          filter: '*'
+      filters: []
+    result:
+      - - 0
+        - 1
+        - 2
+  select 3, CBF is 2:
+    policy:
+      replicas:
+        - count: 1
+          selector: X
+      containerBackupFactor: 2
+      selectors:
+        - name: X
+          count: 3
+          clause: SAME
+          attribute: Country
+          filter: '*'
+      filters: []
+    result:
+      - - 0
+        - 1
+        - 2

netmap/yml_tests/cbf_requirements.yml

@@ -0,0 +1,82 @@
+name: CBF requirements
+nodes:
+  - attributes:
+      - key: ID
+        value: '1'
+      - key: Attr
+        value: Same
+  - attributes:
+      - key: ID
+        value: '2'
+      - key: Attr
+        value: Same
+  - attributes:
+      - key: ID
+        value: '3'
+      - key: Attr
+        value: Same
+  - attributes:
+      - key: ID
+        value: '4'
+      - key: Attr
+        value: Same
+tests:
+  default CBF, no selector:
+    policy:
+      replicas:
+        - count: 2
+      containerBackupFactor: 0
+      selectors: []
+      filters: []
+    result:
+      - - 0
+        - 2
+        - 1
+        - 3
+  explicit CBF, no selector:
+    policy:
+      replicas:
+        - count: 2
+      containerBackupFactor: 3
+      selectors: []
+      filters: []
+    result:
+      - - 0
+        - 2
+        - 1
+        - 3
+  select distinct, weak CBF:
+    policy:
+      replicas:
+        - count: 2
+          selector: X
+      containerBackupFactor: 3
+      selectors:
+        - name: X
+          count: 2
+          clause: DISTINCT
+          filter: '*'
+      filters: []
+    result:
+      - - 0
+        - 2
+        - 1
+        - 3
+  select same, weak CBF:
+    policy:
+      replicas:
+        - count: 2
+          selector: X
+      containerBackupFactor: 3
+      selectors:
+        - name: X
+          count: 2
+          clause: SAME
+          attribute: Attr
+          filter: '*'
+      filters: []
+    result:
+      - - 0
+        - 1
+        - 2
+        - 3

netmap/yml_tests/filter_complex.yml

@@ -0,0 +1,210 @@
+name: compound filter
+nodes:
+  - attributes:
+      - key: Storage
+        value: SSD
+      - key: Rating
+        value: '10'
+      - key: IntField
+        value: '100'
+      - key: Param
+        value: Value1
+tests:
+  good:
+    policy:
+      replicas:
+        - count: 1
+          selector: S
+      containerBackupFactor: 1
+      selectors:
+        - name: S
+          count: 1
+          clause: DISTINCT
+          filter: Main
+      filters:
+        - name: StorageSSD
+          key: Storage
+          op: EQ
+          value: SSD
+          filters: []
+        - name: GoodRating
+          key: Rating
+          op: GE
+          value: '4'
+          filters: []
+        - name: Main
+          op: AND
+          filters:
+            - name: StorageSSD
+              op: OPERATION_UNSPECIFIED
+              filters: []
+            - name: ''
+              key: IntField
+              op: LT
+              value: '123'
+              filters: []
+            - name: GoodRating
+              op: OPERATION_UNSPECIFIED
+              filters: []
+            - op: OR
+              filters:
+                - key: Param
+                  op: EQ
+                  value: Value1
+                  filters: []
+                - key: Param
+                  op: EQ
+                  value: Value2
+                  filters: []
+    result:
+      - - 0
+  bad storage type:
+    policy:
+      replicas:
+        - count: 1
+          selector: S
+      containerBackupFactor: 1
+      selectors:
+        - name: S
+          count: 1
+          clause: DISTINCT
+          filter: Main
+      filters:
+        - name: StorageSSD
+          key: Storage
+          op: EQ
+          value: HDD
+          filters: []
+        - name: GoodRating
+          key: Rating
+          op: GE
+          value: '4'
+          filters: []
+        - name: Main
+          op: AND
+          filters:
+            - name: StorageSSD
+              op: OPERATION_UNSPECIFIED
+              filters: []
+            - name: ''
+              key: IntField
+              op: LT
+              value: '123'
+              filters: []
+            - name: GoodRating
+              op: OPERATION_UNSPECIFIED
+              filters: []
+            - name: ''
+              op: OR
+              filters:
+                - name: ''
+                  key: Param
+                  op: EQ
+                  value: Value1
+                  filters: []
+                - name: ''
+                  key: Param
+                  op: EQ
+                  value: Value2
+                  filters: []
+    error: not enough nodes
+  bad rating:
+    policy:
+      replicas:
+        - count: 1
+          selector: S
+      containerBackupFactor: 1
+      selectors:
+        - name: S
+          count: 1
+          clause: DISTINCT
+          filter: Main
+      filters:
+        - name: StorageSSD
+          key: Storage
+          op: EQ
+          value: SSD
+          filters: []
+        - name: GoodRating
+          key: Rating
+          op: GE
+          value: '15'
+          filters: []
+        - name: Main
+          op: AND
+          filters:
+            - name: StorageSSD
+              op: OPERATION_UNSPECIFIED
+              filters: []
+            - name: ''
+              key: IntField
+              op: LT
+              value: '123'
+              filters: []
+            - name: GoodRating
+              op: OPERATION_UNSPECIFIED
+              filters: []
+            - name: ''
+              op: OR
+              filters:
+                - name: ''
+                  key: Param
+                  op: EQ
+                  value: Value1
+                  filters: []
+                - name: ''
+                  key: Param
+                  op: EQ
+                  value: Value2
+                  filters: []
+    error: not enough nodes
+  bad param:
+    policy:
+      replicas:
+        - count: 1
+          selector: S
+      containerBackupFactor: 1
+      selectors:
+        - name: S
+          count: 1
+          clause: DISTINCT
+          filter: Main
+      filters:
+        - name: StorageSSD
+          key: Storage
+          op: EQ
+          value: SSD
+          filters: []
+        - name: GoodRating
+          key: Rating
+          op: GE
+          value: '4'
+          filters: []
+        - name: Main
+          op: AND
+          filters:
+            - name: StorageSSD
+              op: OPERATION_UNSPECIFIED
+              filters: []
+            - name: ''
+              key: IntField
+              op: LT
+              value: '123'
+              filters: []
+            - name: GoodRating
+              op: OPERATION_UNSPECIFIED
+              filters: []
+            - name: ''
+              op: OR
+              filters:
+                - name: ''
+                  key: Param
+                  op: EQ
+                  value: Value0
+                  filters: []
+                - name: ''
+                  key: Param
+                  op: EQ
+                  value: Value2
+                  filters: []
+    error: not enough nodes

netmap/yml_tests/filter_invalid_integer.yml

@@ -0,0 +1,45 @@
+name: invalid integer field
+nodes:
+  - attributes:
+      - key: IntegerField
+        value: 'true'
+  - attributes:
+      - key: IntegerField
+        value: str
+tests:
+  empty string is not casted to 0:
+    policy:
+      replicas:
+        - count: 1
+          selector: S
+      containerBackupFactor: 1
+      selectors:
+        - name: S
+          count: 1
+          clause: DISTINCT
+          filter: Main
+      filters:
+        - name: Main
+          key: IntegerField
+          op: LE
+          value: '8'
+          filters: []
+    error: not enough nodes
+  non-empty string is not casted to a number:
+    policy:
+      replicas:
+        - count: 1
+          selector: S
+      containerBackupFactor: 1
+      selectors:
+        - name: S
+          count: 1
+          clause: DISTINCT
+          filter: Main
+      filters:
+        - name: Main
+          key: IntegerField
+          op: GE
+          value: '0'
+          filters: []
+    error: not enough nodes

netmap/yml_tests/filter_simple.yml

@@ -0,0 +1,230 @@
+name: single-op filters
+nodes:
+  - attributes:
+      - key: Rating
+        value: '4'
+      - key: Country
+        value: Germany
+tests:
+  GE true:
+    policy:
+      replicas:
+        - count: 1
+          selector: S
+      containerBackupFactor: 1
+      selectors:
+        - name: S
+          count: 1
+          clause: DISTINCT
+          filter: Main
+      filters:
+        - name: Main
+          key: Rating
+          op: GE
+          value: '4'
+          filters: []
+    result:
+      - - 0
+  GE false:
+    policy:
+      replicas:
+        - count: 1
+          selector: S
+      containerBackupFactor: 1
+      selectors:
+        - name: S
+          count: 1
+          clause: DISTINCT
+          filter: Main
+      filters:
+        - name: Main
+          key: Rating
+          op: GE
+          value: '5'
+          filters: []
+    error: not enough nodes
+  GT true:
+    policy:
+      replicas:
+        - count: 1
+          selector: S
+      containerBackupFactor: 1
+      selectors:
+        - name: S
+          count: 1
+          clause: DISTINCT
+          filter: Main
+      filters:
+        - name: Main
+          key: Rating
+          op: GT
+          value: '3'
+          filters: []
+    result:
+      - - 0
+  GT false:
+    policy:
+      replicas:
+        - count: 1
+          selector: S
+      containerBackupFactor: 1
+      selectors:
+        - name: S
+          count: 1
+          clause: DISTINCT
+          filter: Main
+      filters:
+        - name: Main
+          key: Rating
+          op: GT
+          value: '4'
+          filters: []
+    error: not enough nodes
+  LE true:
+    policy:
+      replicas:
+        - count: 1
+          selector: S
+      containerBackupFactor: 1
+      selectors:
+        - name: S
+          count: 1
+          clause: DISTINCT
+          filter: Main
+      filters:
+        - name: Main
+          key: Rating
+          op: LE
+          value: '4'
+          filters: []
+    result:
+      - - 0
+  LE false:
+    policy:
+      replicas:
+        - count: 1
+          selector: S
+      containerBackupFactor: 1
+      selectors:
+        - name: S
+          count: 1
+          clause: DISTINCT
+          filter: Main
+      filters:
+        - name: Main
+          key: Rating
+          op: LE
+          value: '3'
+          filters: []
+    error: not enough nodes
+  LT true:
+    policy:
+      replicas:
+        - count: 1
+          selector: S
+      containerBackupFactor: 1
+      selectors:
+        - name: S
+          count: 1
+          clause: DISTINCT
+          filter: Main
+      filters:
+        - name: Main
+          key: Rating
+          op: LT
+          value: '5'
+          filters: []
+    result:
+      - - 0
+  LT false:
+    policy:
+      replicas:
+        - count: 1
+          selector: S
+      containerBackupFactor: 1
+      selectors:
+        - name: S
+          count: 1
+          clause: DISTINCT
+          filter: Main
+      filters:
+        - name: Main
+          key: Rating
+          op: LT
+          value: '4'
+          filters: []
+    error: not enough nodes
+  EQ true:
+    policy:
+      replicas:
+        - count: 1
+          selector: S
+      containerBackupFactor: 1
+      selectors:
+        - name: S
+          count: 1
+          clause: DISTINCT
+          filter: Main
+      filters:
+        - name: Main
+          key: Country
+          op: EQ
+          value: Germany
+          filters: []
+    result:
+      - - 0
+  EQ false:
+    policy:
+      replicas:
+        - count: 1
+          selector: S
+      containerBackupFactor: 1
+      selectors:
+        - name: S
+          count: 1
+          clause: DISTINCT
+          filter: Main
+      filters:
+        - name: Main
+          key: Country
+          op: EQ
+          value: China
+          filters: []
+    error: not enough nodes
+  NE true:
+    policy:
+      replicas:
+        - count: 1
+          selector: S
+      containerBackupFactor: 1
+      selectors:
+        - name: S
+          count: 1
+          clause: DISTINCT
+          filter: Main
+      filters:
+        - name: Main
+          key: Country
+          op: NE
+          value: France
+          filters: []
+    result:
+      - - 0
+  NE false:
+    policy:
+      replicas:
+        - count: 1
+          selector: S
+      containerBackupFactor: 1
+      selectors:
+        - name: S
+          count: 1
+          clause: DISTINCT
+          filter: Main
+      filters:
+        - name: Main
+          key: Country
+          op: NE
+          value: Germany
+          filters: []
+    error: not enough nodes