.forgejo/workflows/dco.yaml

@@ -1,19 +0,0 @@
-name: DCO action
-on: [pull_request]
-
-jobs:
-  dco:
-    name: DCO
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v3
-        with:
-          fetch-depth: 0
-      - name: Setup Go
-        uses: actions/setup-go@v3
-        with:
-          go-version: '1.22'
-      - name: Run commit format checker
-        uses: https://git.frostfs.info/TrueCloudLab/dco-go@v3
-        with:
-          from: 'origin/${{ github.event.pull_request.base.ref }}'

.forgejo/workflows/fmt.yaml

@@ -1,17 +0,0 @@
-name: Formatters
-on: [pull_request]
-
-jobs:
-  fmt:
-    name: Run fmt
-    runs-on: ubuntu-22.04
-    steps:
-      - uses: actions/checkout@v3
-      - name: Install deps
-        run: |
-          apt update
-          apt install -y clang-format
-      - name: Run fmt
-        run: |
-          make fmt
-          git diff --exit-code --quiet

.forgejo/workflows/pre-commit.yaml

@@ -1,18 +0,0 @@
-name: Pre-commit hooks
-on: [pull_request]
-
-jobs:
-  pre-commit:
-    name: Pre-commit
-    env:
-      # Skip pre-commit hooks which are executed by other actions.
-      SKIP: make-fmt
-    runs-on: ubuntu-22.04
-    steps:
-      - uses: actions/checkout@v3
-      - name: Install deps
-        run: |
-          apt update
-          apt install -y pre-commit
-      - name: Run pre-commit
-        run: pre-commit run --all-files --hook-stage manual --color=always

.github/CODEOWNERS

@@ -0,0 +1 @@
+*   @alexvanin @realloc @fyrchik @anatoly-bogatyrev

.github/markdown.tmpl

@@ -4,11 +4,11 @@
 ## Table of Contents
 {{range .Files}}
 {{$file_name := .Name}}- [{{.Name}}](#{{.Name}})
-{{if .Services}}  - Services
+{{if .Services}} - Services
-    {{range .Services}}  - [{{.Name}}](#{{.FullName}})
+    {{range .Services}}- [{{.Name}}](#{{.FullName}})
     {{end}}{{end}}
 {{if .Messages}}  - Messages
-    {{range .Messages}}  - [{{.LongName}}](#{{.FullName}})
+    {{range .Messages}}- [{{.LongName}}](#{{.FullName}})
     {{end}}{{end}}
 {{end}}
 - [Scalar Value Types](#scalar-value-types)

.github/workflows/buf.yml

@@ -0,0 +1,36 @@
+name: Buf lint
+
+on:
+  pull_request:
+    branches:
+      - master
+
+jobs:
+  lint:
+    runs-on: ubuntu-20.04
+    steps:
+      - uses: actions/checkout@v2
+      - uses: wizhi/setup-buf@v1
+        with:
+          version: 0.20.5
+      - run: buf check lint
+
+  breaking:
+    runs-on: ubuntu-20.04
+    steps:
+      - name: Setup buf
+        uses: wizhi/setup-buf@v1
+        with:
+          version: 0.20.5
+      - name: Check out ref code
+        uses: actions/checkout@v2
+        with:
+          ref: ${{ github.base_ref }}
+          path: baseref
+      - run: cd baseref && buf image build -o image.bin
+
+      - name: Check out code
+        uses: actions/checkout@v2
+        with:
+          path: prclone
+      - run: cd prclone && buf check breaking --against-input ../baseref/image.bin

.github/workflows/dco.yml

@@ -0,0 +1,21 @@
+name: DCO check
+
+on:
+  pull_request:
+    branches:
+      - master
+
+jobs:
+  commits_check_job:
+    runs-on: ubuntu-latest
+    name: Commits Check
+    steps:
+    - name: Get PR Commits
+      id: 'get-pr-commits'
+      uses: tim-actions/get-pr-commits@master
+      with:
+        token: ${{ secrets.GITHUB_TOKEN }}
+    - name: DCO Check
+      uses: tim-actions/dco@master
+      with:
+        commits: ${{ steps.get-pr-commits.outputs.commits }}

.gitignore

@@ -1 +1,2 @@
 .idea
+

.pre-commit-config.yaml

@@ -1,24 +0,0 @@
-repos:
-  - repo: https://github.com/pre-commit/pre-commit-hooks
-    rev: v4.6.0
-    hooks:
-      - id: check-added-large-files
-      - id: check-case-conflict
-      - id: check-executables-have-shebangs
-      - id: check-shebang-scripts-are-executable
-      - id: check-merge-conflict
-      - id: check-json
-      - id: check-xml
-      - id: check-yaml
-      - id: trailing-whitespace
-        args: [--markdown-linebreak-ext=md]
-      - id: end-of-file-fixer
-        exclude: ".svg$"
-
-  - repo: local
-    hooks:
-      - id: make-fmt
-        name: Run make fmt
-        entry: make fmt
-        language: system
-        pass_filenames: false

CHANGELOG.md

@@ -4,12 +4,6 @@
 
 ### Changed
 - Add `__SYSTEM__` attribute prefix (#12, #14)
-- Add `allow_impersonate` flag to bearer token (#18)
-
-### Removed
-- Reputation system (#22)
-- All `subnet` related fields and types (#25)
-- Storage group (#19)
 
 ## [2.14.0] - 2022-09-23 - Anmado (안마도, 鞍馬島)
 
@@ -61,7 +55,7 @@ Network magic, main status codes, object locks and notifications.
 - `LOCK` value of `object.Type` enum (#194)
 - `Lock` message with payload content of `LOCK` objects (#194)
 - `LOCKED` and `LOCK_NON_REGULAR_OBJECT` status codes to `Object` section (#194)
-- `scheme` field of type `SignatureScheme` to `Signature` message which determines
+- `scheme` field of type `SignatureScheme` to `Signature` message which determines 
   signature scheme (#55)
 - `SignatureRFC6979` message (#203)
 
@@ -166,8 +160,8 @@ values in the objects.
 
 ### Changed
 
-- Clarified processing of empty search query in `object.Search` RPC.
+- Clarified processing of empty search query in `object.Search` RPC. 
-- Specified connection of tombstone expiration value with well-known
+- Specified connection of tombstone expiration value with well-known 
   `__NEOFS__EXPIRATION_EPOCH` object attribute.
 
 ## [2.3.0] - 2021-02-11 - Seonyudo (선유도, 仙遊島)

CODEOWNERS

@@ -1 +0,0 @@
-.*   @alexvanin @realloc @fyrchik @a.bogatyrev

CONTRIBUTING.md

@@ -3,8 +3,8 @@
 First, thank you for contributing! We love and encourage pull requests from
 everyone. Please follow the guidelines:
 
-- Check the open [issues](https://git.frostfs.info/TrueCloudLab/frostfs-api/issues) and
+- Check the open [issues](https://github.com/TrueCloudLab/frostfs-api/issues) and
-  [pull requests](https://git.frostfs.info/TrueCloudLab/frostfs-api/pulls) for existing
+  [pull requests](https://github.com/TrueCloudLab/frostfs-api/pulls) for existing
   discussions.
 
 - Open an issue first, to discuss a new feature or enhancement.
@@ -25,20 +25,19 @@ Start by forking the `frostfs-api` repository, make changes in a branch and then
 send a pull request. We encourage pull requests to discuss code changes. Here
 are the steps in details:
 
-### Set up your repository
+### Set up your GitHub Repository
-
+Fork [NeoFS node upstream](https://github.com/TrueCloudLab/frostfs-api/fork) source
-Fork [FrostFS upstream](https://git.frostfs.info/TrueCloudLab/frostfs-api/fork) source
 repository to your own personal repository. Copy the URL of your fork (you will
 need it for the `git clone` command below).
 
 ```sh
-$ git clone https://git.frostfs.info/TrueCloudLab/frostfs-api
+$ git clone https://github.com/TrueCloudLab/frostfs-api
 ```
 
 ### Set up git remote as ``upstream``
 ```sh
 $ cd frostfs-api
-$ git remote add upstream https://git.frostfs.info/TrueCloudLab/frostfs-api
+$ git remote add upstream https://github.com/TrueCloudLab/frostfs-api
 $ git fetch upstream
 $ git merge upstream/master
 ...
@@ -87,7 +86,7 @@ $ git push origin feature/123-something_awesome
 ```
 
 ### Create a Pull Request
-Pull requests can be created via git.frostfs.info. Refer to [this
+Pull requests can be created via GitHub. Refer to [this
 document](https://help.github.com/articles/creating-a-pull-request/) for
 detailed steps on how to create a pull request. After a Pull Request gets peer
 reviewed and approved, it will be merged.

Makefile

@@ -1,35 +1,21 @@
 #!/usr/bin/make -f
 SHELL=bash
 
-include help.mk
+# BRanch to match for BReaking changes
+BRBR?=master
 
-.PHONY: doc fmt pre-commit unpre-commit pre-commit-run
+.PHONY: lint
+lint:
+	buf check lint
+	buf check breaking --against-input '.git#branch=$(BRBR)'
 
+.PHONY: doc
 # Regenerate documentation for proto files:
 doc:
 	@for f in `find . -type f -name '*.proto' -exec dirname {} \; | sort -u `; do \
 		echo "⇒ Documentation for $$(basename $$f)"; \
 		protoc \
-			--doc_opt=.forgejo/markdown.tmpl,$${f}.md \
+			--doc_opt=.github/markdown.tmpl,$${f}.md \
 			--proto_path=.:/usr/local/include \
 			--doc_out=proto-docs/ $${f}/*.proto; \
 	done
-
-# Run clang-format
-fmt:
-	@for f in `ls **/*.proto`; do \
-		echo "⇒ Formatting $$f"; \
-		clang-format -i $$f; \
-	done
-
-# Activate pre-commit hooks
-pre-commit:
-	pre-commit install --hook-type pre-commit
-
-# Deactivate pre-commit hooks
-unpre-commit:
-	pre-commit uninstall --hook-type pre-commit
-
-# Run pre-commit hooks
-pre-commit-run:
-	@pre-commit run --all-files --hook-stage manual

README.md

@@ -1,18 +1,19 @@
 <p align="center">
-<img src="./.forgejo/logo.svg" width="500px" alt="FrostFS">
+<img src="./.github/logo.svg" width="500px" alt="FrostFS">
 </p>
 <p align="center">
-  <a href="https://frostfs.info">FrostFS</a> API language-agnostic protocol definitions
+  <a href="https://objectstorage.info">FrostFS</a> API language-agnostic protocol definitions
 </p>
 
 ---
-![Release](https://git.frostfs.info/TrueCloudLab/frostfs-api/badges/release.svg)
+![GitHub release (latest SemVer)](https://img.shields.io/github/v/release/TrueCloudLab/frostfs-api?sort=semver)
+![License](https://img.shields.io/github/license/TrueCloudLab/frostfs-api.svg?style=popout)
 
 ## Overview
 
 FrostFS-API repository is the basis for language-specific libraries, e.g.:
 
-- [frostfs-api-go](https://git.frostfs.info/TrueCloudLab/frostfs-api-go)
+- [frostfs-api-go](https://github.com/TrueCloudLab/frostfs-api-go)
 
 Those libraries contain compiled protocol buffers definitions, wrapped with
 language-specific code. Use them to integrate applications with FrostFS.

accounting/service.proto

@@ -9,27 +9,27 @@ import "accounting/types.proto";
 import "refs/types.proto";
 import "session/types.proto";
 
-// Accounting service provides methods for interaction with FrostFS sidechain
+// Accounting service provides methods for interaction with NeoFS sidechain via
-// via other FrostFS nodes to get information about the account balance. Deposit
+// other NeoFS nodes to get information about the account balance. Deposit and
-// and Withdraw operations can't be implemented here, as they require Mainnet
+// Withdraw operations can't be implemented here, as they require Mainnet NeoFS
-// FrostFS smart contract invocation. Transfer operations between internal
+// smart contract invocation. Transfer operations between internal NeoFS
-// FrostFS accounts are possible if both use the same token type.
+// accounts are possible if both use the same token type.
 service AccountingService {
-  // Returns the amount of funds in GAS token for the requested FrostFS account.
+  // Returns the amount of funds in GAS token for the requested NeoFS account.
   //
   // Statuses:
   // - **OK** (0, SECTION_SUCCESS):
   // balance has been successfully read;
   // - Common failures (SECTION_FAILURE_COMMON).
-  rpc Balance(BalanceRequest) returns (BalanceResponse);
+  rpc Balance (BalanceRequest) returns (BalanceResponse);
 }
 
 // BalanceRequest message
 message BalanceRequest {
   // To indicate the account for which the balance is requested, its identifier
-  // is used. It can be any existing account in FrostFS sidechain `Balance`
+  // is used. It can be any existing account in NeoFS sidechain `Balance` smart
-  // smart contract. If omitted, client implementation MUST set it to the
+  // contract. If omitted, client implementation MUST set it to the request's
-  // request's signer `OwnerID`.
+  // signer `OwnerID`.
   message Body {
     // Valid user identifier in `OwnerID` format for which the balance is
     // requested. Required field.
@@ -51,8 +51,7 @@ message BalanceRequest {
 // BalanceResponse message
 message BalanceResponse {
   // The amount of funds in GAS token for the `OwnerID`'s account requested.
-  // Balance is given in the `Decimal` format to avoid precision issues with
+  // Balance is given in the `Decimal` format to avoid precision issues with rounding.
-  // rounding.
   message Body {
     // Amount of funds in GAS token for the requested account.
     Decimal balance = 1;

accounting/types.proto

@@ -5,7 +5,7 @@ package neo.fs.v2.accounting;
 option go_package = "git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/accounting/grpc;accounting";
 option csharp_namespace = "Neo.FileStorage.API.Accounting";
 
-// Standard floating point data type can't be used in FrostFS due to inexactness
+// Standard floating point data type can't be used in NeoFS due to inexactness
 // of the result when doing lots of small number operations. To solve the lost
 // precision issue, special `Decimal` format is used for monetary computations.
 //
@@ -14,9 +14,9 @@ option csharp_namespace = "Neo.FileStorage.API.Accounting";
 // description.
 message Decimal {
   // Number in the smallest Token fractions.
-  int64 value = 1 [ json_name = "value" ];
+  int64 value = 1 [json_name = "value"];
 
   // Precision value indicating how many smallest fractions can be in one
   // integer.
-  uint32 precision = 2 [ json_name = "precision" ];
+  uint32 precision = 2 [json_name = "precision"];
 }

acl/types.proto

@@ -6,7 +6,6 @@ option go_package = "git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/acl/grpc;ac
 option csharp_namespace = "Neo.FileStorage.API.Acl";
 
 import "refs/types.proto";
-import "ape/types.proto";
 
 // Target role of the access control rule in access control list.
 enum Role {
@@ -20,8 +19,7 @@ enum Role {
   // container or an inner ring node
   SYSTEM = 2;
 
-  // Others target rule is applied if sender is neither a user nor a system
+  // Others target rule is applied if sender is neither a user nor a system target
-  // target
   OTHERS = 3;
 }
 
@@ -89,18 +87,18 @@ enum HeaderType {
   // Filter object headers
   OBJECT = 2;
 
-  // Filter service headers. These are not processed by FrostFS nodes and
+  // Filter service headers. These are not processed by NeoFS nodes and
   // exist for service use only.
   SERVICE = 3;
 }
 
 // Describes a single eACL rule.
 message EACLRecord {
-  // FrostFS request Verb to match
+  // NeoFS request Verb to match
-  Operation operation = 1 [ json_name = "operation" ];
+  Operation operation = 1 [json_name = "operation"];
 
   // Rule execution result. Either allows or denies access if filters match.
-  Action action = 2 [ json_name = "action" ];
+  Action action = 2 [json_name = "action"];
 
   // Filter to check particular properties of the request or the object.
   //
@@ -134,48 +132,48 @@ message EACLRecord {
   // it's possible to take that information from the requested address.
   message Filter {
     // Define if Object or Request header will be used
-    HeaderType header_type = 1 [ json_name = "headerType" ];
+    HeaderType header_type = 1 [json_name = "headerType"];
 
     // Match operation type
-    MatchType match_type = 2 [ json_name = "matchType" ];
+    MatchType match_type = 2 [json_name = "matchType"];
 
     // Name of the Header to use
-    string key = 3 [ json_name = "key" ];
+    string key = 3 [json_name="key"];
 
     // Expected Header Value or pattern to match
-    string value = 4 [ json_name = "value" ];
+    string value = 4 [json_name="value"];
   }
 
   // List of filters to match and see if rule is applicable
-  repeated Filter filters = 3 [ json_name = "filters" ];
+  repeated Filter filters = 3 [json_name="filters"];
 
   // Target to apply ACL rule. Can be a subject's role class or a list of public
   // keys to match.
   message Target {
     // Target subject's role class
-    Role role = 1 [ json_name = "role" ];
+    Role role = 1 [json_name="role"];
 
     // List of public keys to identify target subject
-    repeated bytes keys = 2 [ json_name = "keys" ];
+    repeated bytes keys = 2 [json_name="keys"];
   }
   // List of target subjects to apply ACL rule to
-  repeated Target targets = 4 [ json_name = "targets" ];
+  repeated Target targets = 4 [json_name="targets"];
 }
 
 // Extended ACL rules table. A list of ACL rules defined additionally to Basic
 // ACL. Extended ACL rules can be attached to a container and can be updated
 // or may be defined in `BearerToken` structure. Please see the corresponding
-// FrostFS Technical Specification section for detailed description.
+// NeoFS Technical Specification section for detailed description.
 message EACLTable {
   // eACL format version. Effectively, the version of API library used to create
   // eACL Table.
-  neo.fs.v2.refs.Version version = 1 [ json_name = "version" ];
+  neo.fs.v2.refs.Version version = 1 [json_name = "version"];
 
   // Identifier of the container that should use given access control rules
-  neo.fs.v2.refs.ContainerID container_id = 2 [ json_name = "containerID" ];
+  neo.fs.v2.refs.ContainerID container_id = 2 [json_name="containerID"];
 
   // List of Extended ACL rules
-  repeated EACLRecord records = 3 [ json_name = "records" ];
+  repeated EACLRecord records = 3 [json_name="records"];
 }
 
 // BearerToken allows to attach signed Extended ACL rules to the request in
@@ -185,65 +183,40 @@ message EACLTable {
 // used in the similar use cases, like providing authorisation to externally
 // authenticated party.
 //
-// BearerToken can be issued only by the container's owner and must be signed
+// BearerToken can be issued only by the container's owner and must be signed using
-// using the key associated with the container's `OwnerID`.
+// the key associated with the container's `OwnerID`.
 message BearerToken {
-  // Bearer Token body structure contains Extended ACL table issued by the
+  // Bearer Token body structure contains Extended ACL table issued by the container
-  // container owner with additional information preventing token abuse.
+  // owner with additional information preventing token abuse.
   message Body {
     // Table of Extended ACL rules to use instead of the ones attached to the
     // container. If it contains `container_id` field, bearer token is only
-    // valid for this specific container. Otherwise, any container of the same
+    // valid for this specific container. Otherwise, any container of the same owner
-    // owner is allowed.
+    // is allowed.
-    //
+    EACLTable eacl_table = 1 [json_name="eaclTable"];
-    // Deprecated: eACL tables are no longer relevant - `APEOverrides` should be
-    // used instead.
-    EACLTable eacl_table = 1 [ json_name = "eaclTable" ];
 
     // `OwnerID` defines to whom the token was issued. It must match the request
     // originator's `OwnerID`. If empty, any token bearer will be accepted.
-    neo.fs.v2.refs.OwnerID owner_id = 2 [ json_name = "ownerID" ];
+    neo.fs.v2.refs.OwnerID owner_id = 2 [json_name="ownerID"];
 
     // Lifetime parameters of the token. Field names taken from
     // [rfc7519](https://tools.ietf.org/html/rfc7519).
     message TokenLifetime {
       // Expiration Epoch
-      uint64 exp = 1 [ json_name = "exp" ];
+      uint64 exp = 1 [json_name="exp"];
 
       // Not valid before Epoch
-      uint64 nbf = 2 [ json_name = "nbf" ];
+      uint64 nbf = 2 [json_name="nbf"];
 
       // Issued at Epoch
-      uint64 iat = 3 [ json_name = "iat" ];
+      uint64 iat = 3 [json_name="iat"];
     }
     // Token expiration and valid time period parameters
-    TokenLifetime lifetime = 3 [ json_name = "lifetime" ];
+    TokenLifetime lifetime = 3 [json_name="lifetime"];
-
-    // AllowImpersonate flag to consider token signer as request owner.
-    // If this field is true extended ACL table in token body isn't processed.
-    bool allow_impersonate = 4 [ json_name = "allowImpersonate" ];
-
-    // 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.
-    message APEOverride {
-      // Target for which chains are applied.
-      frostfs.v2.ape.ChainTarget target = 1 [ json_name = "target" ];
-
-      // The list of APE chains.
-      repeated frostfs.v2.ape.Chain chains = 2 [ json_name = "chains" ];
-    }
-
-    // APE override for the target.
-    APEOverride ape_override = 5 [ json_name = "apeOverride" ];
   }
   // Bearer Token body
-  Body body = 1 [ json_name = "body" ];
+  Body body = 1 [json_name="body"];
 
   // Signature of BearerToken body
-  neo.fs.v2.refs.Signature signature = 2 [ json_name = "signature" ];
+  neo.fs.v2.refs.Signature signature = 2 [json_name="signature"];
 }

ape/types.proto

@@ -1,33 +0,0 @@
-syntax = "proto3";
-
-package frostfs.v2.ape;
-
-option go_package = "git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/ape/grpc;ape";
-
-// TargetType is a type target to which a rule chain is defined.
-enum TargetType {
-  UNDEFINED = 0;
-
-  NAMESPACE = 1;
-
-  CONTAINER = 2;
-
-  USER = 3;
-
-  GROUP = 4;
-}
-
-// ChainTarget is an object to which a rule chain is defined.
-message ChainTarget {
-  TargetType type = 1;
-
-  string name = 2;
-}
-
-// Chain is a chain of rules defined for a specific target.
-message Chain {
-  oneof kind {
-    // Raw representation of a serizalized rule chain.
-    bytes raw = 1;
-  }
-}

apemanager/service.proto

@@ -1,171 +0,0 @@
-syntax = "proto3";
-
-package frostfs.v2.apemanager;
-
-import "ape/types.proto";
-import "session/types.proto";
-
-option go_package = "git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/apemanager/grpc;apemanager";
-
-// `APEManagerService` provides API to manage rule chains within sidechain's
-// `Policy` smart contract.
-service APEManagerService {
-  // Add a rule chain for a specific target to `Policy` smart contract.
-  //
-  // Statuses:
-  // - **OK** (0, SECTION_SUCCESS): \
-  //   the chain has been successfully added;
-  // - Common failures (SECTION_FAILURE_COMMON);
-  // - **CONTAINER_NOT_FOUND** (3072, SECTION_CONTAINER): \
-  //   container (as target) not found;
-  // - **APE_MANAGER_ACCESS_DENIED** (5120, SECTION_APE_MANAGER): \
-  //   the operation is denied by the service.
-  rpc AddChain(AddChainRequest) returns (AddChainResponse);
-
-  // Remove a rule chain for a specific target from `Policy` smart contract.
-  // RemoveChain is an idempotent operation: removal of non-existing rule chain
-  // also means success.
-  //
-  // Statuses:
-  // - **OK** (0, SECTION_SUCCESS): \
-  //   the chain has been successfully removed;
-  // - Common failures (SECTION_FAILURE_COMMON);
-  // - **CONTAINER_NOT_FOUND** (3072, SECTION_CONTAINER): \
-  //   container (as target) not found;
-  // - **APE_MANAGER_ACCESS_DENIED** (5120, SECTION_APE_MANAGER): \
-  //   the operation is denied by the service.
-  rpc RemoveChain(RemoveChainRequest) returns (RemoveChainResponse);
-
-  // List chains defined for a specific target from `Policy` smart contract.
-  //
-  // Statuses:
-  // - **OK** (0, SECTION_SUCCESS): \
-  //   chains have been successfully listed;
-  // - Common failures (SECTION_FAILURE_COMMON);
-  // - **CONTAINER_NOT_FOUND** (3072, SECTION_CONTAINER): \
-  //   container (as target) not found;
-  // - **APE_MANAGER_ACCESS_DENIED** (5120, SECTION_APE_MANAGER): \
-  //   the operation is denied by the service.
-  rpc ListChains(ListChainsRequest) returns (ListChainsResponse);
-}
-
-message AddChainRequest {
-  message Body {
-    // A target for which a rule chain is added.
-    frostfs.v2.ape.ChainTarget target = 1;
-
-    // The chain to set for the target.
-    frostfs.v2.ape.Chain chain = 2;
-  }
-
-  // The request's body.
-  Body body = 1;
-
-  // Carries request meta information. Header data is used only to regulate
-  // message transport and does not affect request execution.
-  neo.fs.v2.session.RequestMetaHeader meta_header = 2;
-
-  // Carries request verification information. This header is used to
-  // authenticate the nodes of the message route and check the correctness of
-  // transmission.
-  neo.fs.v2.session.RequestVerificationHeader verify_header = 3;
-}
-
-message AddChainResponse {
-  message Body {
-    // Chain ID assigned for the added rule chain.
-    // If chain ID is left empty in the request, then
-    // it will be generated.
-    bytes chain_id = 1;
-  }
-
-  // The response's body.
-  Body body = 1;
-
-  // Carries response meta information. Header data is used only to regulate
-  // message transport and does not affect request execution.
-  neo.fs.v2.session.ResponseMetaHeader meta_header = 2;
-
-  // Carries response verification information. This header is used to
-  // authenticate the nodes of the message route and check the correctness of
-  // transmission.
-  neo.fs.v2.session.ResponseVerificationHeader verify_header = 3;
-}
-
-message RemoveChainRequest {
-  message Body {
-    // Target for which a rule chain is removed.
-    frostfs.v2.ape.ChainTarget target = 1;
-
-    // Chain ID assigned for the rule chain.
-    bytes chain_id = 2;
-  }
-
-  // The request's body.
-  Body body = 1;
-
-  // Carries request meta information. Header data is used only to regulate
-  // message transport and does not affect request execution.
-  neo.fs.v2.session.RequestMetaHeader meta_header = 2;
-
-  // Carries request verification information. This header is used to
-  // authenticate the nodes of the message route and check the correctness of
-  // transmission.
-  neo.fs.v2.session.RequestVerificationHeader verify_header = 3;
-}
-
-message RemoveChainResponse {
-  // Since RemoveChain is an idempotent operation, then the only indicator that
-  // operation could not be performed is an error returning to a client.
-  message Body {}
-
-  // The response's body.
-  Body body = 1;
-
-  // Carries response meta information. Header data is used only to regulate
-  // message transport and does not affect request execution.
-  neo.fs.v2.session.ResponseMetaHeader meta_header = 2;
-
-  // Carries response verification information. This header is used to
-  // authenticate the nodes of the message route and check the correctness of
-  // transmission.
-  neo.fs.v2.session.ResponseVerificationHeader verify_header = 3;
-}
-
-message ListChainsRequest {
-  message Body {
-    // Target for which rule chains are listed.
-    frostfs.v2.ape.ChainTarget target = 1;
-  }
-
-  // The request's body.
-  Body body = 1;
-
-  // Carries request meta information. Header data is used only to regulate
-  // message transport and does not affect request execution.
-  neo.fs.v2.session.RequestMetaHeader meta_header = 2;
-
-  // Carries request verification information. This header is used to
-  // authenticate the nodes of the message route and check the correctness of
-  // transmission.
-  neo.fs.v2.session.RequestVerificationHeader verify_header = 3;
-}
-
-message ListChainsResponse {
-  message Body {
-    // The list of chains defined for the reqeusted target.
-    repeated frostfs.v2.ape.Chain chains = 1;
-  }
-
-  // The response's body.
-  Body body = 1;
-
-  // Carries response meta information. Header data is used only to regulate
-  // message transport and does not affect request execution.
-  neo.fs.v2.session.ResponseMetaHeader meta_header = 2;
-
-  // Carries response verification information. This header is used to
-  // authenticate the nodes of the message route and check the correctness of
-  // transmission.
-  neo.fs.v2.session.ResponseVerificationHeader verify_header = 3;
-}

audit/types.proto

@@ -0,0 +1,59 @@
+syntax = "proto3";
+
+package neo.fs.v2.audit;
+
+option go_package = "git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/audit/grpc;audit";
+option csharp_namespace = "Neo.FileStorage.API.Audit";
+
+import "refs/types.proto";
+
+// DataAuditResult keeps record of conducted Data Audits. The detailed report is
+// generated separately.
+message DataAuditResult {
+  // Data Audit Result format version. Effectively, the version of API library
+  // used to report DataAuditResult structure.
+  neo.fs.v2.refs.Version version = 1 [json_name = "version"];
+
+  // Epoch number when the Data Audit was conducted
+  fixed64 audit_epoch = 2 [json_name = "auditEpoch"];
+
+  // Container under audit
+  neo.fs.v2.refs.ContainerID container_id = 3 [json_name = "containerID"];
+
+  // Public key of the auditing InnerRing node in a binary format
+  bytes public_key = 4 [json_name = "publicKey"];
+
+  // Shows if Data Audit process was complete in time or if it was cancelled
+  bool complete = 5 [json_name = "complete"];
+
+  // Number of request done at PoR stage
+  uint32 requests = 6 [json_name = "requests"];
+
+  // Number of retries done at PoR stage
+  uint32 retries = 7 [json_name = "retries"];
+
+  // List of Storage Groups that passed audit PoR stage
+  repeated neo.fs.v2.refs.ObjectID pass_sg = 8 [json_name = "passSG"];
+
+  // List of Storage Groups that failed audit PoR stage
+  repeated neo.fs.v2.refs.ObjectID fail_sg = 9 [json_name = "failSG"];
+
+  // Number of sampled objects under the audit placed in an optimal way according to
+  // the containers placement policy when checking PoP
+  uint32 hit = 10 [json_name = "hit"];
+
+  // Number of sampled objects under the audit placed in suboptimal way according to
+  // the containers placement policy, but still at a satisfactory level when
+  // checking PoP
+  uint32 miss = 11 [json_name = "miss"];
+
+  // Number of sampled objects under the audit stored inconsistently with the
+  // placement policy or not found at all when checking PoP
+  uint32 fail = 12 [json_name = "fail"];
+
+  // List of storage node public keys that passed at least one PDP
+  repeated bytes pass_nodes = 13 [json_name = "passNodes"];
+
+  // List of storage node public keys that failed at least one PDP
+  repeated bytes fail_nodes = 14 [json_name = "failNodes"];
+}

buf.yaml

@@ -0,0 +1,10 @@
+lint:
+  use:
+    - DEFAULT
+    - COMMENTS
+    - ENUM_FIRST_VALUE_ZERO
+  except:
+    - PACKAGE_DIRECTORY_MATCH
+    - PACKAGE_VERSION_SUFFIX
+    - ENUM_VALUE_PREFIX
+    - ENUM_ZERO_VALUE_SUFFIX

container/service.proto

@@ -5,39 +5,36 @@ package neo.fs.v2.container;
 option go_package = "git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/container/grpc;container";
 option csharp_namespace = "Neo.FileStorage.API.Container";
 
+import "acl/types.proto";
 import "container/types.proto";
 import "refs/types.proto";
 import "session/types.proto";
 
 // `ContainerService` provides API to interact with `Container` smart contract
-// in FrostFS sidechain via other FrostFS nodes. All of those actions can be
+// in NeoFS sidechain via other NeoFS nodes. All of those actions can be done
-// done equivalently by directly issuing transactions and RPC calls to sidechain
+// equivalently by directly issuing transactions and RPC calls to sidechain
 // nodes.
 service ContainerService {
   // `Put` invokes `Container` smart contract's `Put` method and returns
   // response immediately. After a new block is issued in sidechain, request is
-  // verified by Inner Ring nodes. After one more block in sidechain, the
+  // verified by Inner Ring nodes. After one more block in sidechain, the container
-  // container is added into smart contract storage.
+  // is added into smart contract storage.
   //
   // Statuses:
   // - **OK** (0, SECTION_SUCCESS): \
   //   request to save the container has been sent to the sidechain;
-  // - Common failures (SECTION_FAILURE_COMMON);
+  // - Common failures (SECTION_FAILURE_COMMON).
-  // - **CONTAINER_ACCESS_DENIED** (3074, SECTION_CONTAINER): \
-  //   container create access denied.
   rpc Put(PutRequest) returns (PutResponse);
 
   // `Delete` invokes `Container` smart contract's `Delete` method and returns
   // response immediately. After a new block is issued in sidechain, request is
-  // verified by Inner Ring nodes. After one more block in sidechain, the
+  // verified by Inner Ring nodes. After one more block in sidechain, the container
-  // container is added into smart contract storage.
+  // is added into smart contract storage.
   //
   // Statuses:
   // - **OK** (0, SECTION_SUCCESS): \
   //   request to remove the container has been sent to the sidechain;
-  // - Common failures (SECTION_FAILURE_COMMON);
+  // - Common failures (SECTION_FAILURE_COMMON).
-  // - **CONTAINER_ACCESS_DENIED** (3074, SECTION_CONTAINER): \
-  //   container delete access denied.
   rpc Delete(DeleteRequest) returns (DeleteResponse);
 
   // Returns container structure from `Container` smart contract storage.
@@ -47,9 +44,7 @@ service ContainerService {
   //   container has been successfully read;
   // - Common failures (SECTION_FAILURE_COMMON);
   // - **CONTAINER_NOT_FOUND** (3072, SECTION_CONTAINER): \
-  //   requested container not found;
+  //   requested container not found.
-  // - **CONTAINER_ACCESS_DENIED** (3074, SECTION_CONTAINER): \
-  //   access to container is denied.
   rpc Get(GetRequest) returns (GetResponse);
 
   // Returns all owner's containers from 'Container` smart contract' storage.
@@ -57,13 +52,42 @@ service ContainerService {
   // Statuses:
   // - **OK** (0, SECTION_SUCCESS): \
   //   container list has been successfully read;
-  // - Common failures (SECTION_FAILURE_COMMON);
+  // - Common failures (SECTION_FAILURE_COMMON).
-  // - **CONTAINER_ACCESS_DENIED** (3074, SECTION_CONTAINER): \
-  //   container list access denied.
   rpc List(ListRequest) returns (ListResponse);
+
+  // Invokes 'SetEACL' method of 'Container` smart contract and returns response
+  // immediately. After one more block in sidechain, changes in an Extended ACL are
+  // added into smart contract storage.
+  //
+  // Statuses:
+  // - **OK** (0, SECTION_SUCCESS): \
+  //   request to save container eACL has been sent to the sidechain;
+  // - Common failures (SECTION_FAILURE_COMMON).
+  rpc SetExtendedACL(SetExtendedACLRequest) returns (SetExtendedACLResponse);
+
+  // Returns Extended ACL table and signature from `Container` smart contract
+  // storage.
+  //
+  // Statuses:
+  // - **OK** (0, SECTION_SUCCESS): \
+  //   container eACL has been successfully read;
+  // - Common failures (SECTION_FAILURE_COMMON);
+  // - **CONTAINER_NOT_FOUND** (3072, SECTION_CONTAINER): \
+  //   container not found;
+  // - **EACL_NOT_FOUND** (3073, SECTION_CONTAINER): \
+  //   eACL table not found.
+  rpc GetExtendedACL(GetExtendedACLRequest) returns (GetExtendedACLResponse);
+
+  // Announces the space values used by the container for P2P synchronization.
+  //
+  // Statuses:
+  // - **OK** (0, SECTION_SUCCESS): \
+  //   estimation of used space has been successfully announced;
+  // - Common failures (SECTION_FAILURE_COMMON).
+  rpc AnnounceUsedSpace(AnnounceUsedSpaceRequest) returns (AnnounceUsedSpaceResponse);
 }
 
-// New FrostFS Container creation request
+// New NeoFS Container creation request
 message PutRequest {
   // Container creation request has container structure's signature as a
   // separate field. It's not stored in sidechain, just verified on container
@@ -71,7 +95,7 @@ message PutRequest {
   // the stable-marshalled container strucutre, hence there is no need for
   // additional signature checks.
   message Body {
-    // Container structure to register in FrostFS
+    // Container structure to register in NeoFS
     container.Container container = 1;
 
     // Signature of a stable-marshalled container according to RFC-6979.
@@ -90,7 +114,7 @@ message PutRequest {
   neo.fs.v2.session.RequestVerificationHeader verify_header = 3;
 }
 
-// New FrostFS Container creation response
+// New NeoFS Container creation response
 message PutResponse {
   // Container put response body contains information about the newly registered
   // container as seen by `Container` smart contract. `ContainerID` can be
@@ -119,11 +143,10 @@ message DeleteRequest {
   // the container owner's intent. The signature will be verified by `Container`
   // smart contract, so signing algorithm must be supported by NeoVM.
   message Body {
-    // Identifier of the container to delete from FrostFS
+    // Identifier of the container to delete from NeoFS
     neo.fs.v2.refs.ContainerID container_id = 1;
 
-    // `ContainerID` signed with the container owner's key according to
+    // `ContainerID` signed with the container owner's key according to RFC-6979.
-    // RFC-6979.
     neo.fs.v2.refs.SignatureRFC6979 signature = 2;
   }
   // Body of container delete request message.
@@ -245,3 +268,150 @@ message ListResponse {
   // transmission.
   neo.fs.v2.session.ResponseVerificationHeader verify_header = 3;
 }
+
+// Set Extended ACL
+message SetExtendedACLRequest {
+  // Set Extended ACL request body does not have separate `ContainerID`
+  // reference. It will be taken from `EACLTable.container_id` field.
+  message Body {
+    // Extended ACL table to set for the container
+    neo.fs.v2.acl.EACLTable eacl = 1;
+
+    // Signature of stable-marshalled Extended ACL table according to RFC-6979.
+    neo.fs.v2.refs.SignatureRFC6979 signature = 2;
+  }
+  // Body of set extended acl request message.
+  Body body = 1;
+
+  // Carries request meta information. Header data is used only to regulate
+  // message transport and does not affect request execution.
+  neo.fs.v2.session.RequestMetaHeader meta_header = 2;
+
+  // Carries request verification information. This header is used to
+  // authenticate the nodes of the message route and check the correctness of
+  // transmission.
+  neo.fs.v2.session.RequestVerificationHeader verify_header = 3;
+}
+
+// Set Extended ACL
+message SetExtendedACLResponse {
+  // `SetExtendedACLResponse` has an empty body because the operation is
+  // asynchronous and the update should be reflected in `Container` smart contract's
+  // storage after next block is issued in sidechain.
+  message Body { }
+
+  // Body of set extended acl response message.
+  Body body = 1;
+
+  // Carries response meta information. Header data is used only to regulate
+  // message transport and does not affect request execution.
+  neo.fs.v2.session.ResponseMetaHeader meta_header = 2;
+
+  // Carries response verification information. This header is used to
+  // authenticate the nodes of the message route and check the correctness of
+  // transmission.
+  neo.fs.v2.session.ResponseVerificationHeader verify_header = 3;
+}
+
+// Get Extended ACL
+message GetExtendedACLRequest {
+  // Get Extended ACL request body
+  message Body {
+    // Identifier of the container having Extended ACL
+    neo.fs.v2.refs.ContainerID container_id = 1;
+  }
+
+  // Body of get extended acl request message.
+  Body body = 1;
+
+  // Carries request meta information. Header data is used only to regulate
+  // message transport and does not affect request execution.
+  neo.fs.v2.session.RequestMetaHeader meta_header = 2;
+
+  // Carries request verification information. This header is used to
+  // authenticate the nodes of the message route and check the correctness of
+  // transmission.
+  neo.fs.v2.session.RequestVerificationHeader verify_header = 3;
+}
+
+// Get Extended ACL
+message GetExtendedACLResponse {
+  // Get Extended ACL Response body can be empty if the requested container does
+  // not have Extended ACL Table attached or Extended ACL has not been allowed at
+  // the time of container creation.
+  message Body {
+    // Extended ACL requested, if available
+    neo.fs.v2.acl.EACLTable eacl = 1;
+
+    // Signature of stable-marshalled Extended ACL according to RFC-6979.
+    neo.fs.v2.refs.SignatureRFC6979 signature = 2;
+
+    // Session token if Extended ACL was set within a session
+    neo.fs.v2.session.SessionToken session_token = 3;
+  }
+  // Body of get extended acl response message.
+  Body body = 1;
+
+  // Carries response meta information. Header data is used only to regulate
+  // message transport and does not affect request execution.
+  neo.fs.v2.session.ResponseMetaHeader meta_header = 2;
+
+  // Carries response verification information. This header is used to
+  // authenticate the nodes of the message route and check the correctness of
+  // transmission.
+  neo.fs.v2.session.ResponseVerificationHeader verify_header = 3;
+}
+
+// Announce container used space
+message AnnounceUsedSpaceRequest {
+  // Container used space announcement body.
+  message Body {
+    // Announcement contains used space information for a single container.
+    message Announcement {
+      // Epoch number for which the container size estimation was produced.
+      uint64 epoch = 1;
+
+      // Identifier of the container.
+      neo.fs.v2.refs.ContainerID container_id = 2;
+
+      // Used space is a sum of object payload sizes of a specified
+      // container, stored in the node. It must not include inhumed objects.
+      uint64 used_space = 3;
+    }
+
+    // List of announcements. If nodes share several containers,
+    // announcements are transferred in a batch.
+    repeated Announcement announcements = 1;
+  }
+
+  // Body of announce used space request message.
+  Body body = 1;
+
+  // Carries request meta information. Header data is used only to regulate
+  // message transport and does not affect request execution.
+  neo.fs.v2.session.RequestMetaHeader meta_header = 2;
+
+  // Carries request verification information. This header is used to
+  // authenticate the nodes of the message route and check the correctness of
+  // transmission.
+  neo.fs.v2.session.RequestVerificationHeader verify_header = 3;
+}
+
+// Announce container used space
+message AnnounceUsedSpaceResponse {
+  // `AnnounceUsedSpaceResponse` has an empty body because announcements are
+  // one way communication.
+  message Body { }
+
+  // Body of announce used space response message.
+  Body body = 1;
+
+  // Carries response meta information. Header data is used only to regulate
+  // message transport and does not affect request execution.
+  neo.fs.v2.session.ResponseMetaHeader meta_header = 2;
+
+  // Carries response verification information. This header is used to
+  // authenticate the nodes of the message route and check the correctness of
+  // transmission.
+  neo.fs.v2.session.ResponseVerificationHeader verify_header = 3;
+}

container/types.proto

@@ -10,26 +10,26 @@ import "refs/types.proto";
 
 // Container is a structure that defines object placement behaviour. Objects can
 // be stored only within containers. They define placement rule, attributes and
-// access control information. An ID of a container is a 32 byte long SHA256
+// access control information. An ID of a container is a 32 byte long SHA256 hash
-// hash of stable-marshalled container message.
+// of stable-marshalled container message.
 message Container {
   // Container format version. Effectively, the version of API library used to
   // create the container.
-  neo.fs.v2.refs.Version version = 1 [ json_name = "version" ];
+  neo.fs.v2.refs.Version version = 1 [json_name = "version"];
 
   // Identifier of the container owner
-  neo.fs.v2.refs.OwnerID owner_id = 2 [ json_name = "ownerID" ];
+  neo.fs.v2.refs.OwnerID owner_id = 2 [json_name = "ownerID"];
 
   // Nonce is a 16 byte UUIDv4, used to avoid collisions of `ContainerID`s
-  bytes nonce = 3 [ json_name = "nonce" ];
+  bytes nonce = 3 [json_name = "nonce"];
 
-  // `BasicACL` contains access control rules for the owner, system and others
+  // `BasicACL` contains access control rules for the owner, system and others groups,
-  // groups, as well as permission bits for `BearerToken` and `Extended ACL`
+  // as well as permission bits for `BearerToken` and `Extended ACL`
-  uint32 basic_acl = 4 [ json_name = "basicACL" ];
+  uint32 basic_acl = 4 [json_name = "basicACL"];
 
   // `Attribute` is a user-defined Key-Value metadata pair attached to the
-  // container. Container attributes are immutable. They are set at the moment
+  // container. Container attributes are immutable. They are set at the moment of
-  // of container creation and can never be added or updated.
+  // container creation and can never be added or updated.
   //
   // Key name must be a container-unique valid UTF-8 string. Value can't be
   // empty. Containers with duplicated attribute names or attributes with empty
@@ -37,22 +37,25 @@ message Container {
   //
   // There are some "well-known" attributes affecting system behaviour:
   //
+  // * [ __SYSTEM__SUBNET ] \
+  //   (`__NEOFS__SUBNET` is deprecated) \
+  //   String ID of a container's storage subnet. Any container can be attached to
+  //   one subnet only.
   // * [ __SYSTEM__NAME ] \
   //   (`__NEOFS__NAME` is deprecated) \
   //   String of a human-friendly container name registered as a domain in
   //   NNS contract.
   // * [ __SYSTEM__ZONE ]  \
   //   (`__NEOFS__ZONE` is deprecated) \
-  //   String of a zone for `__SYSTEM__NAME` (`__NEOFS__NAME` is deprecated).
+  //   String of a zone for `__SYSTEM__NAME` (`__NEOFS__NAME` is deprecated). Used as a TLD of a domain name in NNS
-  //   Used as a TLD of a domain name in NNS contract. If no zone is specified,
+  //   contract. If no zone is specified, use default zone: `container`.
-  //   use default zone: `container`.
   // * [ __SYSTEM__DISABLE_HOMOMORPHIC_HASHING ] \
   //   (`__NEOFS__DISABLE_HOMOMORPHIC_HASHING` is deprecated) \
-  //   Disables homomorphic hashing for the container if the value equals "true"
+  //   Disables homomorphic hashing for the container if the value equals "true" string.
-  //   string. Any other values are interpreted as missing attribute. Container
+  //   Any other values are interpreted as missing attribute. Container could be
-  //   could be accepted in a FrostFS network only if the global network hashing
+  //   accepted in a NeoFS network only if the global network hashing configuration
-  //   configuration value corresponds with that attribute's value. After
+  //   value corresponds with that attribute's value. After container inclusion, network
-  //   container inclusion, network setting is ignored.
+  //   setting is ignored.
   //
   // And some well-known attributes used by applications only:
   //
@@ -62,15 +65,14 @@ message Container {
   //   User-defined local time of container creation in Unix Timestamp format
   message Attribute {
     // Attribute name key
-    string key = 1 [ json_name = "key" ];
+    string key = 1 [json_name = "key"];
 
     // Attribute value
-    string value = 2 [ json_name = "value" ];
+    string value = 2 [json_name = "value"];
   }
   // Attributes represent immutable container's meta data
-  repeated Attribute attributes = 5 [ json_name = "attributes" ];
+  repeated Attribute attributes = 5 [json_name = "attributes"];
 
   // Placement policy for the object inside the container
-  neo.fs.v2.netmap.PlacementPolicy placement_policy = 6
+  neo.fs.v2.netmap.PlacementPolicy placement_policy = 6 [json_name = "placementPolicy"];
-      [ json_name = "placementPolicy" ];
 }

doc/release_instructions.md

@@ -1,6 +1,6 @@
 # Release instructions
 
-This documents outlines the frostfs-api release process and can be used as a TODO
+This documents outlines the neofs-api release process and can be used as a TODO
 list for a new release.
 
 ## Pre-release checks
@@ -20,7 +20,7 @@ Add an entry to the CHANGELOG.md following the style established there.
 Add a codename for releases with the new major version, version and release date in
 the heading. Write a paragraph describing the most significant changes done in
 this release. Then add sections with what has been added, changed and removed,
-describing each change briefly with a reference to issues, where
+describing each change briefly with a reference to GitHub issues, where
 available.
 
 ## Release commit
@@ -38,7 +38,7 @@ Release v2.9.0 - Anmyeondo (안면도, 安眠島)
 Use `vX.Y.Z` tag following the semantic versioning standard. For pre-release
 versions use `vX.Y.Z-rc.N` scheme.
 
-## Push changes and release tag to repository
+## Push changes and release tag to Github
 
 This step should bypass the default PR mechanism to get a correct result (so
 that releasing requires admin privileges for the project), both the `master`
@@ -48,9 +48,9 @@ branch update and tag must be pushed simultaneously like this:
 $ git push origin master v2.7.0
 ```
 
-## Make a proper release
+## Make a proper Github release
 
-Edit an automatically-created release on git.frostfs.info
+Edit an automatically-created release on Github.
 
 Release title has to follow `<version> <Romanized codename> (<Hangeul, Hanja
 codename> )` scheme for major releases and just `<version>` for regular point
@@ -58,5 +58,6 @@ releases.
 
 ## Post-release actions
 
-* Close corresponding X.Y.Z milestone
+* Close corresponding X.Y.Z Github milestone
 * Make announcements in Matrix and Discord channels
+* Update [NeoFS Technical Specification](https://github.com/nspcc-dev/neofs-spec)

help.mk

@@ -1,11 +0,0 @@
-.PHONY: help
-
-# Show this help prompt
-help:
-	@echo '  Usage:'
-	@echo ''
-	@echo '    make <target>'
-	@echo ''
-	@echo '  Targets:'
-	@echo ''
-	@awk '/^#/{ comment = substr($$0,3) } /^[a-zA-Z][a-zA-Z0-9_-]+:/{ print "   ", $$1, comment; comment = "" }' $(MAKEFILE_LIST) | column -t -s ':' | grep -v 'IGNORE' | sort | uniq

lock/types.proto

@@ -9,11 +9,10 @@ import "refs/types.proto";
 
 // Lock objects protects a list of objects from being deleted. The lifetime of a
 // lock object is limited similar to regular objects in
-// `__SYSTEM__EXPIRATION_EPOCH` (`__NEOFS__EXPIRATION_EPOCH` is deprecated)
+// `__SYSTEM__EXPIRATION_EPOCH` (`__NEOFS__EXPIRATION_EPOCH` is deprecated) attribute. Lock object MUST have expiration epoch.
-// attribute. Lock object MUST have expiration epoch. It is impossible to delete
+// It is impossible to delete a lock object via ObjectService.Delete RPC call.
-// a lock object via ObjectService.Delete RPC call.
 message Lock {
   // List of objects to lock. Must not be empty or carry empty IDs.
   // All members must be of the `REGULAR` type.
-  repeated neo.fs.v2.refs.ObjectID members = 1 [ json_name = "members" ];
+  repeated neo.fs.v2.refs.ObjectID members = 1 [json_name = "members"];
 }

netmap/service.proto

@@ -9,45 +9,45 @@ import "netmap/types.proto";
 import "refs/types.proto";
 import "session/types.proto";
 
-// `NetmapService` provides methods to work with `Network Map` and the
+// `NetmapService` provides methods to work with `Network Map` and the information
-// information required to build it. The resulting `Network Map` is stored in
+// required to build it. The resulting `Network Map` is stored in sidechain
-// sidechain `Netmap` smart contract, while related information can be obtained
+// `Netmap` smart contract, while related information can be obtained from other
-// from other FrostFS nodes.
+// NeoFS nodes.
 service NetmapService {
-  // Get NodeInfo structure from the particular node directly.
+  // Get NodeInfo structure from the particular node directly. 
-  // Node information can be taken from `Netmap` smart contract. In some cases,
+  // Node information can be taken from `Netmap` smart contract. In some cases, though,
-  // though, one may want to get recent information directly or to talk to the
+  // one may want to get recent information directly or to talk to the node not yet
-  // node not yet present in the `Network Map` to find out what API version can
+  // present in the `Network Map` to find out what API version can be used for
-  // be used for further communication. This can be also used to check if a node
+  // further communication. This can be also used to check if a node is up and running.
-  // is up and running.
   //
   // Statuses:
   // - **OK** (0, SECTION_SUCCESS):
   // information about the server has been successfully read;
   // - Common failures (SECTION_FAILURE_COMMON).
-  rpc LocalNodeInfo(LocalNodeInfoRequest) returns (LocalNodeInfoResponse);
+  rpc LocalNodeInfo (LocalNodeInfoRequest) returns (LocalNodeInfoResponse);
 
-  // Read recent information about the FrostFS network.
+  // Read recent information about the NeoFS network.
   //
   // Statuses:
   // - **OK** (0, SECTION_SUCCESS):
   // information about the current network state has been successfully read;
   // - Common failures (SECTION_FAILURE_COMMON).
-  rpc NetworkInfo(NetworkInfoRequest) returns (NetworkInfoResponse);
+  rpc NetworkInfo (NetworkInfoRequest) returns (NetworkInfoResponse);
 
-  // Returns network map snapshot of the current FrostFS epoch.
+  // Returns network map snapshot of the current NeoFS epoch.
   //
   // Statuses:
   // - **OK** (0, SECTION_SUCCESS):
   // information about the current network map has been successfully read;
   // - Common failures (SECTION_FAILURE_COMMON).
-  rpc NetmapSnapshot(NetmapSnapshotRequest) returns (NetmapSnapshotResponse);
+  rpc NetmapSnapshot (NetmapSnapshotRequest) returns (NetmapSnapshotResponse);
 }
 
 // Get NodeInfo structure directly from a particular node
 message LocalNodeInfoRequest {
   // LocalNodeInfo request body is empty.
-  message Body {}
+  message Body {
+  }
   // Body of the LocalNodeInfo request message
   Body body = 1;
 
@@ -65,7 +65,7 @@ message LocalNodeInfoRequest {
 message LocalNodeInfoResponse {
   // Local Node Info, including API Version in use.
   message Body {
-    // Latest FrostFS API version in use
+    // Latest NeoFS API version in use
     neo.fs.v2.refs.Version version = 1;
 
     // NodeInfo structure with recent information from node itself
@@ -86,77 +86,81 @@ message LocalNodeInfoResponse {
 
 // Get NetworkInfo structure with the network view from a particular node.
 message NetworkInfoRequest {
-  // NetworkInfo request body is empty.
+    // NetworkInfo request body is empty.
-  message Body {}
+    message Body {
-  // Body of the NetworkInfo request message
+    }
-  Body body = 1;
+    // Body of the NetworkInfo request message
+    Body body = 1;
 
-  // Carries request meta information. Header data is used only to regulate
+    // Carries request meta information. Header data is used only to regulate
-  // message transport and does not affect request execution.
+    // message transport and does not affect request execution.
-  neo.fs.v2.session.RequestMetaHeader meta_header = 2;
+    neo.fs.v2.session.RequestMetaHeader meta_header = 2;
 
-  // Carries request verification information. This header is used to
+    // Carries request verification information. This header is used to
-  // authenticate the nodes of the message route and check the correctness of
+    // authenticate the nodes of the message route and check the correctness of
-  // transmission.
+    // transmission.
-  neo.fs.v2.session.RequestVerificationHeader verify_header = 3;
+    neo.fs.v2.session.RequestVerificationHeader verify_header = 3;
 }
 
 // Response with NetworkInfo structure including current epoch and
 // sidechain magic number.
 message NetworkInfoResponse {
-  // Information about the network.
+    // Information about the network.
-  message Body {
+    message Body {
-    // NetworkInfo structure with recent information.
+        // NetworkInfo structure with recent information.
-    NetworkInfo network_info = 1;
+        NetworkInfo network_info = 1;
-  }
+    }
-  // Body of the NetworkInfo response message.
+    // Body of the NetworkInfo response message.
-  Body body = 1;
+    Body body = 1;
 
-  // Carries response meta information. Header data is used only to regulate
+    // Carries response meta information. Header data is used only to regulate
-  // message transport and does not affect response execution.
+    // message transport and does not affect response execution.
-  neo.fs.v2.session.ResponseMetaHeader meta_header = 2;
+    neo.fs.v2.session.ResponseMetaHeader meta_header = 2;
 
-  // Carries response verification information. This header is used to
+    // Carries response verification information. This header is used to
-  // authenticate the nodes of the message route and check the correctness of
+    // authenticate the nodes of the message route and check the correctness of
-  // transmission.
+    // transmission.
-  neo.fs.v2.session.ResponseVerificationHeader verify_header = 3;
+    neo.fs.v2.session.ResponseVerificationHeader verify_header = 3;
 }
 
 // Get netmap snapshot request
 message NetmapSnapshotRequest {
-  // Get netmap snapshot request body.
+    // Get netmap snapshot request body.
-  message Body {}
+    message Body {
+    }
 
-  // Body of get netmap snapshot request message.
+    // Body of get netmap snapshot request message.
-  Body body = 1;
+    Body body = 1;
 
-  // Carries request meta information. Header data is used only to regulate
+    // Carries request meta information. Header data is used only to regulate
-  // message transport and does not affect request execution.
+    // message transport and does not affect request execution.
-  neo.fs.v2.session.RequestMetaHeader meta_header = 2;
+    neo.fs.v2.session.RequestMetaHeader meta_header = 2;
+
+    // Carries request verification information. This header is used to
+    // authenticate the nodes of the message route and check the correctness of
+    // transmission.
+    neo.fs.v2.session.RequestVerificationHeader verify_header = 3;
 
-  // Carries request verification information. This header is used to
-  // authenticate the nodes of the message route and check the correctness of
-  // transmission.
-  neo.fs.v2.session.RequestVerificationHeader verify_header = 3;
 }
 
 // Response with current netmap snapshot
 message NetmapSnapshotResponse {
-  // Get netmap snapshot response body
+    // Get netmap snapshot response body
-  message Body {
+    message Body {
-    // Structure of the requested network map.
+        // Structure of the requested network map.
-    Netmap netmap = 1 [ json_name = "netmap" ];
+        Netmap netmap = 1 [json_name = "netmap"];
-  }
+    }
 
-  // Body of get netmap snapshot response message.
+    // Body of get netmap snapshot response message.
-  Body body = 1;
+    Body body = 1;
 
-  // Carries response meta information. Header data is used only to regulate
+    // Carries response meta information. Header data is used only to regulate
-  // message transport and does not affect response execution.
+    // message transport and does not affect response execution.
-  neo.fs.v2.session.ResponseMetaHeader meta_header = 2;
+    neo.fs.v2.session.ResponseMetaHeader meta_header = 2;
+
+    // Carries response verification information. This header is used to
+    // authenticate the nodes of the message route and check the correctness of
+    // transmission.
+    neo.fs.v2.session.ResponseVerificationHeader verify_header = 3;
 
-  // Carries response verification information. This header is used to
-  // authenticate the nodes of the message route and check the correctness of
-  // transmission.
-  neo.fs.v2.session.ResponseVerificationHeader verify_header = 3;
 }

netmap/types.proto

@@ -5,6 +5,8 @@ package neo.fs.v2.netmap;
 option go_package = "git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/netmap/grpc;netmap";
 option csharp_namespace = "Neo.FileStorage.API.Netmap";
 
+import "refs/types.proto";
+
 // Operations on filters
 enum Operation {
   // No Operation defined
@@ -33,12 +35,6 @@ enum Operation {
 
   // Logical AND
   AND = 8;
-
-  // Logical negation
-  NOT = 9;
-
-  // Matches pattern
-  LIKE = 10;
 }
 
 // Selector modifier shows how the node set will be formed. By default selector
@@ -55,46 +51,46 @@ enum Clause {
   DISTINCT = 2;
 }
 
-// This filter will return the subset of nodes from `NetworkMap` or another
+// This filter will return the subset of nodes from `NetworkMap` or another filter's
-// filter's results that will satisfy filter's conditions.
+// results that will satisfy filter's conditions.
 message Filter {
   // Name of the filter or a reference to a named filter. '*' means
   // application to the whole unfiltered NetworkMap. At top level it's used as a
   // filter name. At lower levels it's considered to be a reference to another
   // named filter
-  string name = 1 [ json_name = "name" ];
+  string name = 1 [json_name = "name"];
 
   // Key to filter
-  string key = 2 [ json_name = "key" ];
+  string key = 2 [json_name = "key"];
 
   // Filtering operation
-  Operation op = 3 [ json_name = "op" ];
+  Operation op = 3 [json_name = "op"];
 
   // Value to match
-  string value = 4 [ json_name = "value" ];
+  string value = 4 [json_name = "value"];
 
   // List of inner filters. Top level operation will be applied to the whole
   // list.
-  repeated Filter filters = 5 [ json_name = "filters" ];
+  repeated Filter filters = 5 [json_name = "filters"];
 }
 
 // Selector chooses a number of nodes from the bucket taking the nearest nodes
 // to the provided `ContainerID` by hash distance.
 message Selector {
   // Selector name to reference in object placement section
-  string name = 1 [ json_name = "name" ];
+  string name = 1 [json_name = "name"];
 
   // How many nodes to select from the bucket
-  uint32 count = 2 [ json_name = "count" ];
+  uint32 count = 2 [json_name = "count"];
 
   // Selector modifier showing how to form a bucket
-  Clause clause = 3 [ json_name = "clause" ];
+  Clause clause = 3 [json_name = "clause"];
 
   // Bucket attribute to select from
-  string attribute = 4 [ json_name = "attribute" ];
+  string attribute = 4 [json_name = "attribute"];
 
   // Filter reference to select from
-  string filter = 5 [ json_name = "filter" ];
+  string filter = 5 [json_name = "filter"];
 }
 
 // Number of object replicas in a set of nodes from the defined selector. If no
@@ -102,16 +98,10 @@ message Selector {
 // default.
 message Replica {
   // How many object replicas to put
-  uint32 count = 1 [ json_name = "count" ];
+  uint32 count = 1 [json_name = "count"];
 
   // Named selector bucket to put replicas
-  string selector = 2 [ json_name = "selector" ];
+  string selector = 2 [json_name = "selector"];
-
-  // Data shards count
-  uint32 ec_data_count = 3 [ json_name = "ecDataCount" ];
-
-  // Parity shards count
-  uint32 ec_parity_count = 4 [ json_name = "ecParityCount" ];
 }
 
 // Set of rules to select a subset of nodes from `NetworkMap` able to store
@@ -120,45 +110,46 @@ message Replica {
 message PlacementPolicy {
   // Rules to set number of object replicas and place each one into a named
   // bucket
-  repeated Replica replicas = 1 [ json_name = "replicas" ];
+  repeated Replica replicas = 1 [json_name = "replicas"];
 
-  // Container backup factor controls how deep FrostFS will search for nodes
+  // Container backup factor controls how deep NeoFS will search for nodes
   // alternatives to include into container's nodes subset
-  uint32 container_backup_factor = 2 [ json_name = "containerBackupFactor" ];
+  uint32 container_backup_factor = 2 [json_name = "containerBackupFactor"];
 
   // Set of Selectors to form the container's nodes subset
-  repeated Selector selectors = 3 [ json_name = "selectors" ];
+  repeated Selector selectors = 3 [json_name = "selectors"];
 
   // List of named filters to reference in selectors
-  repeated Filter filters = 4 [ json_name = "filters" ];
+  repeated Filter filters = 4 [json_name = "filters"];
 
-  // Unique flag defines non-overlapping application for replicas
+  // Subnetwork ID to select nodes from. Zero subnet (default) represents
-  bool unique = 5 [ json_name = "unique" ];
+  // all of the nodes which didn't explicitly opt out of membership.
+  refs.SubnetID subnet_id = 5 [json_name = "subnetId"];
 }
 
-// FrostFS node description
+// NeoFS node description
 message NodeInfo {
-  // Public key of the FrostFS node in a binary format
+  // Public key of the NeoFS node in a binary format
-  bytes public_key = 1 [ json_name = "publicKey" ];
+  bytes public_key = 1 [json_name = "publicKey"];
 
   // Ways to connect to a node
-  repeated string addresses = 2 [ json_name = "addresses" ];
+  repeated string addresses = 2 [json_name = "addresses"];
 
-  // Administrator-defined Attributes of the FrostFS Storage Node.
+  // Administrator-defined Attributes of the NeoFS Storage Node.
   //
   // `Attribute` is a Key-Value metadata pair. Key name must be a valid UTF-8
   // string. Value can't be empty.
   //
   // Attributes can be constructed into a chain of attributes: any attribute can
-  // have a parent attribute and a child attribute (except the first and the
+  // have a parent attribute and a child attribute (except the first and the last
-  // last one). A string representation of the chain of attributes in FrostFS
+  // one). A string representation of the chain of attributes in NeoFS Storage
-  // Storage Node configuration uses ":" and "/" symbols, e.g.:
+  // Node configuration uses ":" and "/" symbols, e.g.:
   //
-  //        `FrostFS_NODE_ATTRIBUTE_1=key1:val1/key2:val2`
+  //        `NEOFS_NODE_ATTRIBUTE_1=key1:val1/key2:val2`
   //
-  // Therefore the string attribute representation in the Node configuration
+  // Therefore the string attribute representation in the Node configuration must
-  // must use "\:", "\/" and "\\" escaped symbols if any of them appears in an
+  // use "\:", "\/" and "\\" escaped symbols if any of them appears in an attribute's
-  // attribute's key or value.
+  // key or value.
   //
   // Node's attributes are mostly used during Storage Policy evaluation to
   // calculate object's placement and find a set of nodes satisfying policy
@@ -173,6 +164,14 @@ message NodeInfo {
   //   attributes it's a string presenting floating point number with comma or
   //   point delimiter for decimal part. In the Network Map it will be saved as
   //   64-bit unsigned integer representing number of minimal token fractions.
+  // * [ __SYSTEM__SUBNET_%s ] \
+  //   (`__NEOFS__SUBNET_%s` is deprecated) \
+  //   `True` or `False`. Defines if the node is included in the `%s` subnetwork
+  //   or not. `%s` must be an existing subnetwork's ID (non-negative integer number).
+  //   A node can be included in more than one subnetwork and, therefore, can contain
+  //   more than one subnet attribute. A missing attribute is equivalent to the
+  //   presence of the attribute with `False` value (except default zero subnetwork
+  //   (with `%s` == 0) for which missing attribute means inclusion in that network).
   // * UN-LOCODE \
   //   Node's geographic location in
   //   [UN/LOCODE](https://www.unece.org/cefact/codesfortrade/codes_index.html)
@@ -201,8 +200,8 @@ message NodeInfo {
   //   [ISO 3166-2](https://en.wikipedia.org/wiki/ISO_3166-2). Calculated
   //   automatically from `UN-LOCODE` attribute.
   // * Continent \
-  //   Node's continent name according to the [Seven-Continent
+  //   Node's continent name according to the [Seven-Continent model]
-  //   model](https://en.wikipedia.org/wiki/Continent#Number). Calculated
+  //   (https://en.wikipedia.org/wiki/Continent#Number). Calculated
   //   automatically from `UN-LOCODE` attribute.
   // * ExternalAddr
   //   Node's preferred way for communications with external clients.
@@ -210,25 +209,25 @@ message NodeInfo {
   //   Must contain a comma-separated list of multi-addresses.
   //
   // For detailed description of each well-known attribute please see the
-  // corresponding section in FrostFS Technical Specification.
+  // corresponding section in NeoFS Technical Specification.
   message Attribute {
     // Key of the node attribute
-    string key = 1 [ json_name = "key" ];
+    string key = 1 [json_name = "key"];
 
     // Value of the node attribute
-    string value = 2 [ json_name = "value" ];
+    string value = 2 [json_name = "value"];
 
     // Parent keys, if any. For example for `City` it could be `Region` and
     // `Country`.
-    repeated string parents = 3 [ json_name = "parents" ];
+    repeated string parents = 3 [json_name = "parents"];
   }
-  // Carries list of the FrostFS node attributes in a key-value form. Key name
+  // Carries list of the NeoFS node attributes in a key-value form. Key name
   // must be a node-unique valid UTF-8 string. Value can't be empty. NodeInfo
   // structures with duplicated attribute names or attributes with empty values
   // will be considered invalid.
-  repeated Attribute attributes = 3 [ json_name = "attributes" ];
+  repeated Attribute attributes = 3 [json_name = "attributes"];
 
-  // Represents the enumeration of various states of the FrostFS node.
+  // Represents the enumeration of various states of the NeoFS node.
   enum State {
     // Unknown state
     UNSPECIFIED = 0;
@@ -243,20 +242,20 @@ message NodeInfo {
     MAINTENANCE = 3;
   }
 
-  // Carries state of the FrostFS node
+  // Carries state of the NeoFS node
-  State state = 4 [ json_name = "state" ];
+  State state = 4 [json_name = "state"];
 }
 
 // Network map structure
 message Netmap {
-  // Network map revision number.
+    // Network map revision number.
-  uint64 epoch = 1 [ json_name = "epoch" ];
+    uint64 epoch = 1 [json_name = "epoch"];
 
-  // Nodes presented in network.
+    // Nodes presented in network.
-  repeated NodeInfo nodes = 2 [ json_name = "nodes" ];
+    repeated NodeInfo nodes = 2 [json_name = "nodes"];
 }
 
-// FrostFS network configuration
+// NeoFS network configuration
 message NetworkConfig {
   // Single configuration parameter. Key MUST be network-unique.
   //
@@ -274,8 +273,15 @@ message NetworkConfig {
   // - **ContainerFee** \
   //   Fee paid for container creation by the container owner.
   //   Value: little-endian integer. Default: 0.
+  // - **EigenTrustAlpha** \
+  //   Alpha parameter of EigenTrust algorithm used in the Reputation system.
+  //   Value: decimal floating-point number in UTF-8 string representation.
+  //   Default: 0.
+  // - **EigenTrustIterations** \
+  //   Number of EigenTrust algorithm iterations to pass in the Reputation system.
+  //   Value: little-endian integer. Default: 0.
   // - **EpochDuration** \
-  //   FrostFS epoch duration measured in Sidechain blocks.
+  //   NeoFS epoch duration measured in Sidechain blocks.
   //   Value: little-endian integer. Default: 0.
   // - **HomomorphicHashingDisabled** \
   //   Flag of disabling the homomorphic hashing of objects' payload.
@@ -287,71 +293,33 @@ message NetworkConfig {
   //   Flag allowing setting the MAINTENANCE state to storage nodes.
   //   Value: true if any byte != 0. Default: false.
   // - **MaxObjectSize** \
-  //   Maximum size of physically stored FrostFS object measured in bytes.
+  //   Maximum size of physically stored NeoFS object measured in bytes.
   //   Value: little-endian integer. Default: 0.
-  //
-  //   This value refers to the maximum size of a **physically** stored object
-  //   in FrostFS. However, from a user's perspective, the **logical** size of a
-  //   stored object can be significantly larger. The relationship between the
-  //   physical and logical object sizes is governed by the following formula
-  //
-  //   ```math
-  //   \mathrm{Stored\ Object\ Size} \le
-  //   \frac{
-  //     \left(\mathrm{Max\ Object\ Size}\right)^2
-  //   }{
-  //     \mathrm{Object\ ID\ Size}
-  //   }
-  //   ```
-  //
-  //   This arises from the fact that a tombstone, also being an object, stores
-  //   the IDs of inhumed objects and cannot be divided into smaller objects,
-  //   thus having an upper limit for its size.
-  //
-  //   For example, if:
-  //   * Max Object Size Size = 64 MiB;
-  //   * Object ID Size = 32 B;
-  //
-  //   then:
-  //   ```math
-  //     \mathrm{Stored\ Object\ Size} \le
-  //     \frac{\left(64\ \mathrm{MiB}\right)^2}{32\ \mathrm{B}} =
-  //     \frac{2^{52}}{2^5}\ \mathrm{B} =
-  //     2^{47}\ \mathrm{B} =
-  //     128\ \mathrm{TiB}
-  //   ```
   // - **WithdrawFee** \
   //   Fee paid for withdrawal of funds paid by the account owner.
   //   Value: little-endian integer. Default: 0.
-  // - **MaxECDataCount** \
-  //   Maximum number of data shards for EC placement policy.
-  //   Value: little-endian integer. Default: 0.
-  // - **MaxECParityCount** \
-  //   Maximum number of parity shards for EC placement policy.
-  //   Value: little-endian integer. Default: 0.
   message Parameter {
     // Parameter key. UTF-8 encoded string
-    bytes key = 1 [ json_name = "key" ];
+    bytes key = 1 [json_name = "key"];
 
     // Parameter value
-    bytes value = 2 [ json_name = "value" ];
+    bytes value = 2 [json_name = "value"];
   }
   // List of parameter values
-  repeated Parameter parameters = 1 [ json_name = "parameters" ];
+  repeated Parameter parameters = 1 [json_name = "parameters"];
 }
 
-// Information about FrostFS network
+// Information about NeoFS network
 message NetworkInfo {
-  // Number of the current epoch in the FrostFS network
+    // Number of the current epoch in the NeoFS network
-  uint64 current_epoch = 1 [ json_name = "currentEpoch" ];
+    uint64 current_epoch = 1 [json_name = "currentEpoch"];
 
-  // Magic number of the sidechain of the FrostFS network
+    // Magic number of the sidechain of the NeoFS network
-  uint64 magic_number = 2 [ json_name = "magicNumber" ];
+    uint64 magic_number = 2 [json_name = "magicNumber"];
 
-  // MillisecondsPerBlock network parameter of the sidechain of the FrostFS
+    // MillisecondsPerBlock network parameter of the sidechain of the NeoFS network
-  // network
+    int64 ms_per_block = 3 [json_name = "msPerBlock"];
-  int64 ms_per_block = 3 [ json_name = "msPerBlock" ];
 
-  // FrostFS network configuration
+    // NeoFS network configuration
-  NetworkConfig network_config = 4 [ json_name = "networkConfig" ];
+    NetworkConfig network_config = 4 [json_name = "networkConfig"];
 }

object/service.proto

@@ -13,11 +13,11 @@ import "session/types.proto";
 // not affect the sidechain and are only served by nodes in p2p style.
 service ObjectService {
   // Receive full object structure, including Headers and payload. Response uses
-  // gRPC stream. First response message carries the object with the requested
+  // gRPC stream. First response message carries the object with the requested address.
-  // address. Chunk messages are parts of the object's payload if it is needed.
+  // Chunk messages are parts of the object's payload if it is needed. All
-  // All messages, except the first one, carry payload chunks. The requested
+  // messages, except the first one, carry payload chunks. The requested object can
-  // object can be restored by concatenation of object message payload and all
+  // be restored by concatenation of object message payload and all chunks
-  // chunks keeping the receiving order.
+  // keeping the receiving order.
   //
   // Extended headers can change `Get` behaviour:
   // * [ __SYSTEM__NETMAP_EPOCH ] \
@@ -26,10 +26,9 @@ service ObjectService {
   //   calculation.
   // * [ __SYSTEM__NETMAP_LOOKUP_DEPTH ] \
   //   (`__NEOFS__NETMAP_LOOKUP_DEPTH` is deprecated) \
-  //   Will try older versions (starting from `__SYSTEM__NETMAP_EPOCH`
+  //   Will try older versions (starting from `__SYSTEM__NETMAP_EPOCH` (`__NEOFS__NETMAP_EPOCH` is deprecated) if specified or
-  //   (`__NEOFS__NETMAP_EPOCH` is deprecated) if specified or the latest one
+  //   the latest one otherwise) of Network Map to find an object until the depth
-  //   otherwise) of Network Map to find an object until the depth limit is
+  //   limit is reached.
-  //   reached.
   //
   // Please refer to detailed `XHeader` description.
   //
@@ -45,8 +44,6 @@ service ObjectService {
   //   the requested object has been marked as deleted;
   // - **CONTAINER_NOT_FOUND** (3072, SECTION_CONTAINER): \
   //   object container not found;
-  // - **CONTAINER_ACCESS_DENIED** (3074, SECTION_CONTAINER): \
-  //   access to container is denied;
   // - **TOKEN_EXPIRED** (4097, SECTION_SESSION): \
   //   provided session token has expired.
   rpc Get(GetRequest) returns (stream GetResponse);
@@ -73,18 +70,15 @@ service ObjectService {
   // - **ACCESS_DENIED** (2048, SECTION_OBJECT): \
   //   write access to the container is denied;
   // - **LOCKED** (2050, SECTION_OBJECT): \
-  //   placement of an object of type TOMBSTONE that includes at least one
+  //   placement of an object of type TOMBSTONE that includes at least one locked
-  //   locked object is prohibited;
+  //   object is prohibited;
   // - **LOCK_NON_REGULAR_OBJECT** (2051, SECTION_OBJECT): \
   //   placement of an object of type LOCK that includes at least one object of
   //   type other than REGULAR is prohibited;
   // - **CONTAINER_NOT_FOUND** (3072, SECTION_CONTAINER): \
   //   object storage container not found;
-  // - **CONTAINER_ACCESS_DENIED** (3074, SECTION_CONTAINER): \
-  //   access to container is denied;
   // - **TOKEN_NOT_FOUND** (4096, SECTION_SESSION): \
-  //   (for trusted object preparation) session private key does not exist or
+  //   (for trusted object preparation) session private key does not exist or has
-  //   has
   // been deleted;
   // - **TOKEN_EXPIRED** (4097, SECTION_SESSION): \
   //   provided session token has expired.
@@ -107,15 +101,10 @@ service ObjectService {
   // - Common failures (SECTION_FAILURE_COMMON);
   // - **ACCESS_DENIED** (2048, SECTION_OBJECT): \
   //   delete access to the object is denied;
-  // - **OBJECT_NOT_FOUND** (2049, SECTION_OBJECT): \
-  //   the object could not be deleted because it has not been \
-  //   found within the container;
   // - **LOCKED** (2050, SECTION_OBJECT): \
   //   deleting a locked object is prohibited;
   // - **CONTAINER_NOT_FOUND** (3072, SECTION_CONTAINER): \
   //   object container not found;
-  // - **CONTAINER_ACCESS_DENIED** (3074, SECTION_CONTAINER): \
-  //   access to container is denied;
   // - **TOKEN_EXPIRED** (4097, SECTION_SESSION): \
   //   provided session token has expired.
   rpc Delete(DeleteRequest) returns (DeleteResponse);
@@ -144,14 +133,12 @@ service ObjectService {
   //   the requested object has been marked as deleted;
   // - **CONTAINER_NOT_FOUND** (3072, SECTION_CONTAINER): \
   //   object container not found;
-  // - **CONTAINER_ACCESS_DENIED** (3074, SECTION_CONTAINER): \
-  //   access to container is denied;
   // - **TOKEN_EXPIRED** (4097, SECTION_SESSION): \
   //   provided session token has expired.
   rpc Head(HeadRequest) returns (HeadResponse);
 
   // Search objects in container. Search query allows to match by Object
-  // Header's filed values. Please see the corresponding FrostFS Technical
+  // Header's filed values. Please see the corresponding NeoFS Technical
   // Specification section for more details.
   //
   // Extended headers can change `Search` behaviour:
@@ -170,16 +157,14 @@ service ObjectService {
   //   access to operation SEARCH of the object is denied;
   // - **CONTAINER_NOT_FOUND** (3072, SECTION_CONTAINER): \
   //   search container not found;
-  // - **CONTAINER_ACCESS_DENIED** (3074, SECTION_CONTAINER): \
-  //   access to container is denied;
   // - **TOKEN_EXPIRED** (4097, SECTION_SESSION): \
   //   provided session token has expired.
   rpc Search(SearchRequest) returns (stream SearchResponse);
 
   // Get byte range of data payload. Range is set as an (offset, length) tuple.
   // Like in `Get` method, the response uses gRPC stream. Requested range can be
-  // restored by concatenation of all received payload chunks keeping the
+  // restored by concatenation of all received payload chunks keeping the receiving
-  // receiving order.
+  // order.
   //
   // Extended headers can change `GetRange` behaviour:
   // * [ __SYSTEM__NETMAP_EPOCH ] \
@@ -207,8 +192,6 @@ service ObjectService {
   //   the requested range is out of bounds;
   // - **CONTAINER_NOT_FOUND** (3072, SECTION_CONTAINER): \
   //   object container not found;
-  // - **CONTAINER_ACCESS_DENIED** (3074, SECTION_CONTAINER): \
-  //   access to container is denied;
   // - **TOKEN_EXPIRED** (4097, SECTION_SESSION): \
   //   provided session token has expired.
   rpc GetRange(GetRangeRequest) returns (stream GetRangeResponse);
@@ -242,96 +225,9 @@ service ObjectService {
   //   the requested range is out of bounds;
   // - **CONTAINER_NOT_FOUND** (3072, SECTION_CONTAINER): \
   //   object container not found;
-  // - **CONTAINER_ACCESS_DENIED** (3074, SECTION_CONTAINER): \
-  //   access to container is denied;
   // - **TOKEN_EXPIRED** (4097, SECTION_SESSION): \
   //   provided session token has expired.
   rpc GetRangeHash(GetRangeHashRequest) returns (GetRangeHashResponse);
-
-  // Put the prepared object into container.
-  // `ContainerID`, `ObjectID`, `OwnerID`, `PayloadHash` and `PayloadLength` of
-  // an object MUST be set.
-  //
-  // Extended headers can change `Put` behaviour:
-  // * [ __SYSTEM__NETMAP_EPOCH \
-  //   (`__NEOFS__NETMAP_EPOCH` is deprecated) \
-  //   Will use the requested version of Network Map for object placement
-  //   calculation.
-  //
-  // Please refer to detailed `XHeader` description.
-  //
-  // Statuses:
-  // - **OK** (0, SECTION_SUCCESS): \
-  //   object has been successfully saved in the container;
-  // - Common failures (SECTION_FAILURE_COMMON);
-  // - **ACCESS_DENIED** (2048, SECTION_OBJECT): \
-  //   write access to the container is denied;
-  // - **LOCKED** (2050, SECTION_OBJECT): \
-  //   placement of an object of type TOMBSTONE that includes at least one
-  //   locked object is prohibited;
-  // - **LOCK_NON_REGULAR_OBJECT** (2051, SECTION_OBJECT): \
-  //   placement of an object of type LOCK that includes at least one object of
-  //   type other than REGULAR is prohibited;
-  // - **CONTAINER_NOT_FOUND** (3072, SECTION_CONTAINER): \
-  //   object storage container not found;
-  // - **CONTAINER_ACCESS_DENIED** (3074, SECTION_CONTAINER): \
-  //   access to container is denied;
-  // - **TOKEN_NOT_FOUND** (4096, SECTION_SESSION): \
-  //   (for trusted object preparation) session private key does not exist or
-  //   has
-  // been deleted;
-  // - **TOKEN_EXPIRED** (4097, SECTION_SESSION): \
-  //   provided session token has expired.
-  rpc PutSingle(PutSingleRequest) returns (PutSingleResponse);
-
-  // Patch the object. Request uses gRPC stream. First message must set
-  // the address of the object that is going to get patched. If the object's
-  // attributes are patched, then these attrubutes must be set only within the
-  // first stream message.
-  //
-  // If the patch request is performed by NOT the object's owner but if the
-  // actor has the permission to perform the patch, then `OwnerID` of the object
-  // is changed. In this case the object's owner loses the object's ownership
-  // after the patch request is successfully done.
-  //
-  // As objects are content-addressable the patching causes new object ID
-  // generation for the patched object. This object id is set witihn
-  // `PatchResponse`. But the object id may remain unchanged in such cases:
-  // 1. The chunk of the applying patch contains the same value as the object's
-  // payload within the same range;
-  // 2. The patch that reverts the changes applied by preceding patch;
-  // 3. The application of the same patches for the object a few times.
-  //
-  // Extended headers can change `Patch` behaviour:
-  // * [ __SYSTEM__NETMAP_EPOCH \
-  //   (`__NEOFS__NETMAP_EPOCH` is deprecated) \
-  //   Will use the requsted version of Network Map for object placement
-  //   calculation.
-  //
-  // Please refer to detailed `XHeader` description.
-  //
-  // Statuses:
-  // - **OK** (0, SECTION_SUCCESS): \
-  //   object has been successfully patched and saved in the container;
-  // - Common failures (SECTION_FAILURE_COMMON);
-  // - **ACCESS_DENIED** (2048, SECTION_OBJECT): \
-  //   write access to the container is denied;
-  // - **OBJECT_NOT_FOUND** (2049, SECTION_OBJECT): \
-  //   object not found in container;
-  // - **OBJECT_ALREADY_REMOVED** (2052, SECTION_OBJECT): \
-  //   the requested object has been marked as deleted.
-  // - **OUT_OF_RANGE** (2053, SECTION_OBJECT): \
-  //   the requested range is out of bounds;
-  // - **CONTAINER_NOT_FOUND** (3072, SECTION_CONTAINER): \
-  //   object storage container not found;
-  // - **CONTAINER_ACCESS_DENIED** (3074, SECTION_CONTAINER): \
-  //   access to container is denied;
-  // - **TOKEN_NOT_FOUND** (4096, SECTION_SESSION): \
-  //   (for trusted object preparation) session private key does not exist or
-  //   has been deleted;
-  // - **TOKEN_EXPIRED** (4097, SECTION_SESSION): \
-  //   provided session token has expired.
-  rpc Patch(stream PatchRequest) returns (PatchResponse);
 }
 
 // GET object request
@@ -384,9 +280,6 @@ message GetResponse {
 
       // Meta information of split hierarchy for object assembly.
       SplitInfo split_info = 3;
-
-      // Meta information for EC object assembly.
-      ECInfo ec_info = 4;
     }
   }
   // Body of get object response message.
@@ -418,17 +311,9 @@ message PutRequest {
       // Object's Header
       Header header = 3;
 
-      // Number of copies of the object to store within the RPC call. By
+      // Number of the object copies to store within the RPC call. By default
-      // default, object is processed according to the container's placement
+      // object is processed according to the container's placement policy.
-      // policy. Can be one of:
+      uint32 copies_number = 4;
-      // 1. A single number; applied to the whole request and is treated as
-      // a minimal number of nodes that must store an object to complete the
-      // request successfully.
-      // 2. An ordered array; every number is treated as a minimal number of
-      // nodes in a corresponding placement vector that must store an object
-      // to complete the request successfully. The length MUST equal the
-      // placement vectors number, otherwise request is considered malformed.
-      repeated uint32 copies_number = 4;
     }
     // Single message in the request stream.
     oneof object_part {
@@ -478,7 +363,7 @@ message DeleteRequest {
   message Body {
     // Address of the object to be deleted
     neo.fs.v2.refs.Address address = 1;
-  }
+ }
   // Body of delete object request message.
   Body body = 1;
 
@@ -550,10 +435,10 @@ message HeadRequest {
 // 3. Check if `ObjectID` signature in `signature` field is correct
 message HeaderWithSignature {
   // Full object header
-  Header header = 1 [ json_name = "header" ];
+  Header header = 1 [json_name = "header"];
 
   // Signed `ObjectID` to verify full header's authenticity
-  neo.fs.v2.refs.Signature signature = 2 [ json_name = "signature" ];
+  neo.fs.v2.refs.Signature signature = 2 [json_name = "signature"];
 }
 
 // Object HEAD response
@@ -562,7 +447,7 @@ message HeadResponse {
   message Body {
     // Requested object header, it's part or meta information about split
     // object.
-    oneof head {
+    oneof head{
       // Full object's `Header` with `ObjectID` signature
       HeaderWithSignature header = 1;
 
@@ -571,9 +456,6 @@ message HeadResponse {
 
       // Meta information of split hierarchy.
       SplitInfo split_info = 3;
-
-      // Meta information for EC object assembly.
-      ECInfo ec_info = 4;
     }
   }
   // Body of head object response message.
@@ -598,11 +480,11 @@ message SearchRequest {
 
     // Version of the Query Language used
     uint32 version = 2;
-    // Filter structure checks if the object header field or the attribute
+    // Filter structure checks if the object header field or the attribute content
-    // content matches a value.
+    // matches a value.
     //
     // If no filters are set, search request will return all objects of the
-    // container, including Regular object and Tombstone
+    // container, including Regular object, Tombstones and Storage Group
     // objects. Most human users expect to get only object they can directly
     // work with. In that case, `$Object:ROOT` filter should be used.
     //
@@ -632,19 +514,16 @@ message SearchRequest {
     //   object_id of parent
     // * $Object:split.splitID \
     //   16 byte UUIDv4 used to identify the split object hierarchy parts
-    // * $Object:ec.parent \
-    //   If the object is stored according to EC policy, then ec_parent
-    //   attribute is set to return an id list of all related EC chunks.
     //
     // There are some well-known filter aliases to match objects by certain
     // properties:
     //
     // * $Object:ROOT \
-    //   Returns only `REGULAR` type objects that are not split or that are the
+    //   Returns only `REGULAR` type objects that are not split or that are the top
-    //   top level root objects in a split hierarchy. This includes objects not
+    //   level root objects in a split hierarchy. This includes objects not
     //   present physically, like large objects split into smaller objects
     //   without a separate top-level root object. Objects of other types like
-    //   Locks and Tombstones will not be shown. This filter may be
+    //   StorageGroups and Tombstones will not be shown. This filter may be
     //   useful for listing objects like `ls` command of some virtual file
     //   system. This filter is activated if the `key` exists, disregarding the
     //   value and matcher type.
@@ -653,17 +532,17 @@ message SearchRequest {
     //   activated if the `key` exists, disregarding the value and matcher type.
     //
     // Note: using filters with a key with prefix `$Object:` and match type
-    // `NOT_PRESENT `is not recommended since this is not a cross-version
+    // `NOT_PRESENT `is not recommended since this is not a cross-version approach.
-    // approach. Behavior when processing this kind of filters is undefined.
+    // Behavior when processing this kind of filters is undefined.
     message Filter {
       // Match type to use
-      MatchType match_type = 1 [ json_name = "matchType" ];
+      MatchType match_type = 1 [json_name = "matchType"];
 
       // Attribute or Header fields to match
-      string key = 2 [ json_name = "key" ];
+      string key = 2 [json_name = "key"];
 
       // Value to match
-      string value = 3 [ json_name = "value" ];
+      string value = 3 [json_name = "value"];
     }
     // List of search expressions
     repeated Filter filters = 3;
@@ -746,15 +625,12 @@ message GetRangeResponse {
   // chunks.
   message Body {
     // Requested object range or meta information about split object.
-    oneof range_part {
+    oneof range_part{
       // Chunked object payload's range.
       bytes chunk = 1;
 
       // Meta information of split hierarchy.
       SplitInfo split_info = 2;
-
-      // Meta information for EC object assembly.
-      ECInfo ec_info = 3;
     }
   }
 
@@ -822,118 +698,3 @@ message GetRangeHashResponse {
   // transmission.
   neo.fs.v2.session.ResponseVerificationHeader verify_header = 3;
 }
-
-// Object PUT Single request
-message PutSingleRequest {
-  // PUT Single request body
-  message Body {
-    // Prepared object with payload.
-    Object object = 1;
-    // Number of copies of the object to store within the RPC call. By default,
-    // object is processed according to the container's placement policy.
-    // Every number is treated as a minimal number of
-    // nodes in a corresponding placement vector that must store an object
-    // to complete the request successfully. The length MUST equal the placement
-    // vectors number, otherwise request is considered malformed.
-    repeated uint32 copies_number = 2;
-  }
-  // Body of put single object request message.
-  Body body = 1;
-
-  // Carries request meta information. Header data is used only to regulate
-  // message transport and does not affect request execution.
-  neo.fs.v2.session.RequestMetaHeader meta_header = 2;
-
-  // Carries request verification information. This header is used to
-  // authenticate the nodes of the message route and check the correctness of
-  // transmission.
-  neo.fs.v2.session.RequestVerificationHeader verify_header = 3;
-}
-
-// Object PUT Single response
-message PutSingleResponse {
-  // PUT Single Object response body
-  message Body {}
-  // Body of put single object response message.
-  Body body = 1;
-
-  // Carries response meta information. Header data is used only to regulate
-  // message transport and does not affect request execution.
-  neo.fs.v2.session.ResponseMetaHeader meta_header = 2;
-
-  // Carries response verification information. This header is used to
-  // authenticate the nodes of the message route and check the correctness of
-  // transmission.
-  neo.fs.v2.session.ResponseVerificationHeader verify_header = 3;
-}
-
-// Object PATCH request
-message PatchRequest {
-  // PATCH request body
-  message Body {
-    // The address of the object that is requested to get patched.
-    neo.fs.v2.refs.Address address = 1;
-
-    // New attributes for the object. See `replace_attributes` flag usage to
-    // define how new attributes should be set.
-    repeated neo.fs.v2.object.Header.Attribute new_attributes = 2;
-
-    // If this flag is set, then the object's attributes will be entirely
-    // replaced by `new_attributes` list. The empty `new_attributes` list with
-    // `replace_attributes = true` just resets attributes list for the object.
-    //
-    // Default `false` value for this flag means the attributes will be just
-    // merged. If the incoming `new_attributes` list contains already existing
-    // key, then it just replaces it while merging the lists.
-    bool replace_attributes = 3;
-
-    // The patch for the object's payload.
-    message Patch {
-      // The range of the source object for which the payload is replaced by the
-      // patch's chunk. If the range's `length = 0`, then the patch's chunk is
-      // just appended to the original payload starting from the `offest`
-      // without any replace.
-      Range source_range = 1;
-
-      // The chunk that is being appended to or that replaces the original
-      // payload on the given range.
-      bytes chunk = 2;
-    }
-
-    // The patch that is applied for the object.
-    Patch patch = 4;
-  }
-
-  // Body for patch request message.
-  Body body = 1;
-
-  // Carries request meta information. Header data is used only to regulate
-  // message transport and does not affect request execution.
-  neo.fs.v2.session.RequestMetaHeader meta_header = 2;
-
-  // Carries request verification information. This header is used to
-  // authenticate the nodes of the message route and check the correctness of
-  // transmission.
-  neo.fs.v2.session.RequestVerificationHeader verify_header = 3;
-}
-
-// Object PATCH response
-message PatchResponse {
-  // PATCH response body
-  message Body {
-    // The object ID of the saved patched object.
-    neo.fs.v2.refs.ObjectID object_id = 1;
-  }
-
-  // Body for patch response message.
-  Body body = 1;
-
-  // Carries response meta information. Header data is used only to regulate
-  // message transport and does not affect request execution.
-  neo.fs.v2.session.ResponseMetaHeader meta_header = 2;
-
-  // Carries response verification information. This header is used to
-  // authenticate the nodes of the message route and check the correctness of
-  // transmission.
-  neo.fs.v2.session.ResponseVerificationHeader verify_header = 3;
-}

object/types.proto

@@ -9,12 +9,13 @@ import "refs/types.proto";
 import "session/types.proto";
 
 // Type of the object payload content. Only `REGULAR` type objects can be split,
-// hence `TOMBSTONE` and `LOCK` payload is limited by the
+// hence `TOMBSTONE`, `STORAGE_GROUP` and `LOCK` payload is limited by the maximum
-// maximum object size.
+// object size.
 //
 // String presentation of object type is the same as definition:
 // * REGULAR
 // * TOMBSTONE
+// * STORAGE_GROUP
 // * LOCK
 enum ObjectType {
   // Just a normal object
@@ -23,8 +24,8 @@ enum ObjectType {
   // Used internally to identify deleted objects
   TOMBSTONE = 1;
 
-  // Unused (previously storageGroup information)
+  // StorageGroup information
-  // _ = 2;
+  STORAGE_GROUP = 2;
 
   // Object lock
   LOCK = 3;
@@ -52,62 +53,59 @@ enum MatchType {
 message ShortHeader {
   // Object format version. Effectively, the version of API library used to
   // create particular object.
-  neo.fs.v2.refs.Version version = 1 [ json_name = "version" ];
+  neo.fs.v2.refs.Version version = 1 [json_name = "version"];
 
   // Epoch when the object was created
-  uint64 creation_epoch = 2 [ json_name = "creationEpoch" ];
+  uint64 creation_epoch = 2 [json_name = "creationEpoch"];
 
   // Object's owner
-  neo.fs.v2.refs.OwnerID owner_id = 3 [ json_name = "ownerID" ];
+  neo.fs.v2.refs.OwnerID owner_id = 3 [json_name = "ownerID"];
 
   // Type of the object payload content
-  ObjectType object_type = 4 [ json_name = "objectType" ];
+  ObjectType object_type = 4 [json_name = "objectType"];
 
   // Size of payload in bytes.
   // `0xFFFFFFFFFFFFFFFF` means `payload_length` is unknown
-  uint64 payload_length = 5 [ json_name = "payloadLength" ];
+  uint64 payload_length = 5 [json_name = "payloadLength"];
 
   // Hash of payload bytes
-  neo.fs.v2.refs.Checksum payload_hash = 6 [ json_name = "payloadHash" ];
+  neo.fs.v2.refs.Checksum payload_hash = 6 [json_name = "payloadHash"];
 
   // Homomorphic hash of the object payload
-  neo.fs.v2.refs.Checksum homomorphic_hash = 7
+  neo.fs.v2.refs.Checksum homomorphic_hash = 7 [json_name = "homomorphicHash"];
-      [ json_name = "homomorphicHash" ];
 }
 
 // Object Header
 message Header {
   // Object format version. Effectively, the version of API library used to
   // create particular object
-  neo.fs.v2.refs.Version version = 1 [ json_name = "version" ];
+  neo.fs.v2.refs.Version version = 1 [json_name = "version"];
 
   // Object's container
-  neo.fs.v2.refs.ContainerID container_id = 2 [ json_name = "containerID" ];
+  neo.fs.v2.refs.ContainerID container_id = 2 [json_name = "containerID"];
 
   // Object's owner
-  neo.fs.v2.refs.OwnerID owner_id = 3 [ json_name = "ownerID" ];
+  neo.fs.v2.refs.OwnerID owner_id = 3 [json_name = "ownerID"];
 
   // Object creation Epoch
-  uint64 creation_epoch = 4 [ json_name = "creationEpoch" ];
+  uint64 creation_epoch = 4 [json_name = "creationEpoch"];
 
   // Size of payload in bytes.
   // `0xFFFFFFFFFFFFFFFF` means `payload_length` is unknown.
-  uint64 payload_length = 5 [ json_name = "payloadLength" ];
+  uint64 payload_length = 5 [json_name = "payloadLength"];
 
   // Hash of payload bytes
-  neo.fs.v2.refs.Checksum payload_hash = 6 [ json_name = "payloadHash" ];
+  neo.fs.v2.refs.Checksum payload_hash = 6 [json_name = "payloadHash"];
 
   // Type of the object payload content
-  ObjectType object_type = 7 [ json_name = "objectType" ];
+  ObjectType object_type = 7 [json_name = "objectType"];
 
   // Homomorphic hash of the object payload
-  neo.fs.v2.refs.Checksum homomorphic_hash = 8
+  neo.fs.v2.refs.Checksum homomorphic_hash = 8 [json_name = "homomorphicHash"];
-      [ json_name = "homomorphicHash" ];
 
   // Session token, if it was used during Object creation. Need it to verify
   // integrity and authenticity out of Request scope.
-  neo.fs.v2.session.SessionToken session_token = 9
+  neo.fs.v2.session.SessionToken session_token = 9 [json_name = "sessionToken"];
-      [ json_name = "sessionToken" ];
 
   // `Attribute` is a user-defined Key-Value metadata pair attached to an
   // object.
@@ -116,16 +114,15 @@ message Header {
   // Objects with duplicated attribute names or attributes with empty values
   // will be considered invalid.
   //
-  // There are some "well-known" attributes starting with `__SYSTEM__`
+  // There are some "well-known" attributes starting with `__SYSTEM__` (`__NEOFS__` is deprecated) prefix
-  // (`__NEOFS__` is deprecated) prefix that affect system behaviour:
+  // that affect system behaviour:
   //
   // * [ __SYSTEM__UPLOAD_ID ] \
   //   (`__NEOFS__UPLOAD_ID` is deprecated) \
   //   Marks smaller parts of a split bigger object
   // * [ __SYSTEM__EXPIRATION_EPOCH ] \
   //   (`__NEOFS__EXPIRATION_EPOCH` is deprecated) \
-  //   The epoch after which object with no LOCKs on it becomes unavailable.
+  //   Tells GC to delete object after that epoch
-  //   Locked object continues to be available until each of the LOCKs expire.
   // * [ __SYSTEM__TICK_EPOCH ] \
   //   (`__NEOFS__TICK_EPOCH` is deprecated) \
   //   Decimal number that defines what epoch must produce
@@ -155,15 +152,15 @@ message Header {
   //   MIME Content Type of object's payload
   //
   // For detailed description of each well-known attribute please see the
-  // corresponding section in FrostFS Technical Specification.
+  // corresponding section in NeoFS Technical Specification.
   message Attribute {
     // string key to the object attribute
-    string key = 1 [ json_name = "key" ];
+    string key = 1 [json_name = "key"];
     // string value of the object attribute
-    string value = 2 [ json_name = "value" ];
+    string value = 2 [json_name = "value"];
   }
   // User-defined object attributes
-  repeated Attribute attributes = 10 [ json_name = "attributes" ];
+  repeated Attribute attributes = 10 [json_name = "attributes"];
 
   // Bigger objects can be split into a chain of smaller objects. Information
   // about inter-dependencies between spawned objects and how to re-construct
@@ -171,84 +168,54 @@ message Header {
   // must be within the same container.
   message Split {
     // Identifier of the origin object. Known only to the minor child.
-    neo.fs.v2.refs.ObjectID parent = 1 [ json_name = "parent" ];
+    neo.fs.v2.refs.ObjectID parent = 1 [json_name = "parent"];
 
     // Identifier of the left split neighbor
-    neo.fs.v2.refs.ObjectID previous = 2 [ json_name = "previous" ];
+    neo.fs.v2.refs.ObjectID previous = 2 [json_name = "previous"];
 
     // `signature` field of the parent object. Used to reconstruct parent.
-    neo.fs.v2.refs.Signature parent_signature = 3
+    neo.fs.v2.refs.Signature parent_signature = 3 [json_name = "parentSignature"];
-        [ json_name = "parentSignature" ];
 
     // `header` field of the parent object. Used to reconstruct parent.
-    Header parent_header = 4 [ json_name = "parentHeader" ];
+    Header parent_header = 4 [json_name = "parentHeader"];
 
     // List of identifiers of the objects generated by splitting current one.
-    repeated neo.fs.v2.refs.ObjectID children = 5 [ json_name = "children" ];
+    repeated neo.fs.v2.refs.ObjectID children = 5 [json_name = "children"];
 
     // 16 byte UUIDv4 used to identify the split object hierarchy parts. Must be
     // unique inside container. All objects participating in the split must have
     // the same `split_id` value.
-    bytes split_id = 6 [ json_name = "splitID" ];
+    bytes split_id = 6 [json_name = "splitID"];
+
   }
   // Position of the object in the split hierarchy
-  Split split = 11 [ json_name = "split" ];
+  Split split = 11 [json_name = "split"];
-
-  // Erasure code can be applied to any object.
-  // Information about encoded object structure is stored in `EC` header.
-  // All objects belonging to a single EC group have the same `parent` field.
-  message EC {
-    // Identifier of the origin object. Known to all chunks.
-    neo.fs.v2.refs.ObjectID parent = 1 [ json_name = "parent" ];
-    // Index of this chunk.
-    uint32 index = 2 [ json_name = "index" ];
-    // Total number of chunks in this split.
-    uint32 total = 3 [ json_name = "total" ];
-    // Total length of a parent header. Used to trim padding zeroes.
-    uint32 header_length = 4 [ json_name = "headerLength" ];
-    // Chunk of a parent header.
-    bytes header = 5 [ json_name = "header" ];
-    // As the origin object is EC-splitted its identifier is known to all
-    // chunks as parent. But parent itself can be a part of Split (does not
-    // relate to EC-split). In this case parent_split_id should be set.
-    bytes parent_split_id = 6 [ json_name = "parentSplitID" ];
-    // EC-parent's parent ID. parent_split_parent_id is set if EC-parent,
-    // itself, is a part of Split and if an object ID of its parent is
-    // presented. The field allows to determine how EC-chunk is placed in Split
-    // hierarchy.
-    neo.fs.v2.refs.ObjectID parent_split_parent_id = 7
-        [ json_name = "parentSplitParentID" ];
-    // EC parent's attributes.
-    repeated Attribute parent_attributes = 8 [ json_name = "parentAttributes" ];
-  }
-  // Erasure code chunk information.
-  EC ec = 12 [ json_name = "ec" ];
 }
 
 // Object structure. Object is immutable and content-addressed. It means
-// `ObjectID` will change if the header or the payload changes. It's calculated
+// `ObjectID` will change if the header or the payload changes. It's calculated as a
-// as a hash of header field which contains hash of the object's payload.
+// hash of header field which contains hash of the object's payload.
 //
 // For non-regular object types payload format depends on object type specified
 // in the header.
 message Object {
   // Object's unique identifier.
-  neo.fs.v2.refs.ObjectID object_id = 1 [ json_name = "objectID" ];
+  neo.fs.v2.refs.ObjectID object_id = 1 [json_name = "objectID"];
 
   // Signed object_id
-  neo.fs.v2.refs.Signature signature = 2 [ json_name = "signature" ];
+  neo.fs.v2.refs.Signature signature = 2 [json_name = "signature"];
 
   // Object metadata headers
-  Header header = 3 [ json_name = "header" ];
+  Header header = 3 [json_name = "header"];
 
   // Payload bytes
-  bytes payload = 4 [ json_name = "payload" ];
+  bytes payload = 4 [json_name = "payload"];
 }
 
 // Meta information of split hierarchy for object assembly. With the last part
 // one can traverse linked list of split hierarchy back to the first part and
-// assemble the original object. With a linking object one can assemble an
+// assemble the original object. With a linking object one can assemble an object
-// object right from the object parts.
+// right from the object parts.
 message SplitInfo {
   // 16 byte UUID used to identify the split object hierarchy parts.
   bytes split_id = 1;
@@ -262,17 +229,3 @@ message SplitInfo {
   // object parts.
   neo.fs.v2.refs.ObjectID link = 3;
 }
-
-// Meta information for the erasure-encoded object.
-message ECInfo {
-  message Chunk {
-    // Object ID of the chunk.
-    neo.fs.v2.refs.ObjectID id = 1;
-    // Index of the chunk.
-    uint32 index = 2;
-    // Total number of chunks in this split.
-    uint32 total = 3;
-  }
-  // Chunk stored on the node.
-  repeated Chunk chunks = 1;
-}

proto-docs/accounting.md

@@ -4,21 +4,21 @@
 ## Table of Contents
 
 - [accounting/service.proto](#accounting/service.proto)
-  - Services
+ - Services
-      - [AccountingService](#neo.fs.v2.accounting.AccountingService)
+    - [AccountingService](#neo.fs.v2.accounting.AccountingService)
-
+    
   - Messages
-      - [BalanceRequest](#neo.fs.v2.accounting.BalanceRequest)
+    - [BalanceRequest](#neo.fs.v2.accounting.BalanceRequest)
-      - [BalanceRequest.Body](#neo.fs.v2.accounting.BalanceRequest.Body)
+    - [BalanceRequest.Body](#neo.fs.v2.accounting.BalanceRequest.Body)
-      - [BalanceResponse](#neo.fs.v2.accounting.BalanceResponse)
+    - [BalanceResponse](#neo.fs.v2.accounting.BalanceResponse)
-      - [BalanceResponse.Body](#neo.fs.v2.accounting.BalanceResponse.Body)
+    - [BalanceResponse.Body](#neo.fs.v2.accounting.BalanceResponse.Body)
-
+    
 
 - [accounting/types.proto](#accounting/types.proto)
 
   - Messages
-      - [Decimal](#neo.fs.v2.accounting.Decimal)
+    - [Decimal](#neo.fs.v2.accounting.Decimal)
-
+    
 
 - [Scalar Value Types](#scalar-value-types)
 
@@ -35,11 +35,11 @@
 <a name="neo.fs.v2.accounting.AccountingService"></a>
 
 ### Service "neo.fs.v2.accounting.AccountingService"
-Accounting service provides methods for interaction with FrostFS sidechain
+Accounting service provides methods for interaction with NeoFS sidechain via
-via other FrostFS nodes to get information about the account balance. Deposit
+other NeoFS nodes to get information about the account balance. Deposit and
-and Withdraw operations can't be implemented here, as they require Mainnet
+Withdraw operations can't be implemented here, as they require Mainnet NeoFS
-FrostFS smart contract invocation. Transfer operations between internal
+smart contract invocation. Transfer operations between internal NeoFS
-FrostFS accounts are possible if both use the same token type.
+accounts are possible if both use the same token type.
 
 ```
 rpc Balance(BalanceRequest) returns (BalanceResponse);
@@ -48,7 +48,7 @@ rpc Balance(BalanceRequest) returns (BalanceResponse);
 
 #### Method Balance
 
-Returns the amount of funds in GAS token for the requested FrostFS account.
+Returns the amount of funds in GAS token for the requested NeoFS account.
 
 Statuses:
 - **OK** (0, SECTION_SUCCESS):
@@ -78,9 +78,9 @@ BalanceRequest message
 
 ### Message BalanceRequest.Body
 To indicate the account for which the balance is requested, its identifier
-is used. It can be any existing account in FrostFS sidechain `Balance`
+is used. It can be any existing account in NeoFS sidechain `Balance` smart
-smart contract. If omitted, client implementation MUST set it to the
+contract. If omitted, client implementation MUST set it to the request's
-request's signer `OwnerID`.
+signer `OwnerID`.
 
 
 | Field | Type | Label | Description |
@@ -105,8 +105,7 @@ BalanceResponse message
 
 ### Message BalanceResponse.Body
 The amount of funds in GAS token for the `OwnerID`'s account requested.
-Balance is given in the `Decimal` format to avoid precision issues with
+Balance is given in the `Decimal` format to avoid precision issues with rounding.
-rounding.
 
 
 | Field | Type | Label | Description |
@@ -131,7 +130,7 @@ rounding.
 <a name="neo.fs.v2.accounting.Decimal"></a>
 
 ### Message Decimal
-Standard floating point data type can't be used in FrostFS due to inexactness
+Standard floating point data type can't be used in NeoFS due to inexactness
 of the result when doing lots of small number operations. To solve the lost
 precision issue, special `Decimal` format is used for monetary computations.
 
@@ -170,3 +169,4 @@ description.
 | <a name="bool" /> bool |  | bool | boolean | boolean |
 | <a name="string" /> string | A string must always contain UTF-8 encoded or 7-bit ASCII text. | string | String | str/unicode |
 | <a name="bytes" /> bytes | May contain any arbitrary sequence of bytes. | string | ByteString | str |
+

proto-docs/acl.md

@@ -6,15 +6,14 @@
 - [acl/types.proto](#acl/types.proto)
 
   - Messages
-      - [BearerToken](#neo.fs.v2.acl.BearerToken)
+    - [BearerToken](#neo.fs.v2.acl.BearerToken)
-      - [BearerToken.Body](#neo.fs.v2.acl.BearerToken.Body)
+    - [BearerToken.Body](#neo.fs.v2.acl.BearerToken.Body)
-      - [BearerToken.Body.APEOverride](#neo.fs.v2.acl.BearerToken.Body.APEOverride)
+    - [BearerToken.Body.TokenLifetime](#neo.fs.v2.acl.BearerToken.Body.TokenLifetime)
-      - [BearerToken.Body.TokenLifetime](#neo.fs.v2.acl.BearerToken.Body.TokenLifetime)
+    - [EACLRecord](#neo.fs.v2.acl.EACLRecord)
-      - [EACLRecord](#neo.fs.v2.acl.EACLRecord)
+    - [EACLRecord.Filter](#neo.fs.v2.acl.EACLRecord.Filter)
-      - [EACLRecord.Filter](#neo.fs.v2.acl.EACLRecord.Filter)
+    - [EACLRecord.Target](#neo.fs.v2.acl.EACLRecord.Target)
-      - [EACLRecord.Target](#neo.fs.v2.acl.EACLRecord.Target)
+    - [EACLTable](#neo.fs.v2.acl.EACLTable)
-      - [EACLTable](#neo.fs.v2.acl.EACLTable)
+    
-
 
 - [Scalar Value Types](#scalar-value-types)
 
@@ -39,8 +38,8 @@ like [JWT](https://jwt.io), it has a limited lifetime and scope, hence can be
 used in the similar use cases, like providing authorisation to externally
 authenticated party.
 
-BearerToken can be issued only by the container's owner and must be signed
+BearerToken can be issued only by the container's owner and must be signed using
-using the key associated with the container's `OwnerID`.
+the key associated with the container's `OwnerID`.
 
 
 | Field | Type | Label | Description |
@@ -52,37 +51,15 @@ using the key associated with the container's `OwnerID`.
 <a name="neo.fs.v2.acl.BearerToken.Body"></a>
 
 ### Message BearerToken.Body
-Bearer Token body structure contains Extended ACL table issued by the
+Bearer Token body structure contains Extended ACL table issued by the container
-container owner with additional information preventing token abuse.
+owner with additional information preventing token abuse.
 
 
 | Field | Type | Label | Description |
 | ----- | ---- | ----- | ----------- |
-| eacl_table | [EACLTable](#neo.fs.v2.acl.EACLTable) |  | Table of Extended ACL rules to use instead of the ones attached to the container. If it contains `container_id` field, bearer token is only valid for this specific container. Otherwise, any container of the same owner is allowed.
+| eacl_table | [EACLTable](#neo.fs.v2.acl.EACLTable) |  | Table of Extended ACL rules to use instead of the ones attached to the container. If it contains `container_id` field, bearer token is only valid for this specific container. Otherwise, any container of the same owner is allowed. |
-
-Deprecated: eACL tables are no longer relevant - `APEOverrides` should be used instead. |
 | owner_id | [neo.fs.v2.refs.OwnerID](#neo.fs.v2.refs.OwnerID) |  | `OwnerID` defines to whom the token was issued. It must match the request originator's `OwnerID`. If empty, any token bearer will be accepted. |
 | lifetime | [BearerToken.Body.TokenLifetime](#neo.fs.v2.acl.BearerToken.Body.TokenLifetime) |  | Token expiration and valid time period parameters |
-| allow_impersonate | [bool](#bool) |  | AllowImpersonate flag to consider token signer as request owner. If this field is true extended ACL table in token body isn't processed. |
-| ape_override | [BearerToken.Body.APEOverride](#neo.fs.v2.acl.BearerToken.Body.APEOverride) |  | APE override for the target. |
-
-
-<a name="neo.fs.v2.acl.BearerToken.Body.APEOverride"></a>
-
-### Message BearerToken.Body.APEOverride
-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.
-
-
-| Field | Type | Label | Description |
-| ----- | ---- | ----- | ----------- |
-| target | [frostfs.v2.ape.ChainTarget](#frostfs.v2.ape.ChainTarget) |  | Target for which chains are applied. |
-| chains | [frostfs.v2.ape.Chain](#frostfs.v2.ape.Chain) | repeated | The list of APE chains. |
 
 
 <a name="neo.fs.v2.acl.BearerToken.Body.TokenLifetime"></a>
@@ -107,7 +84,7 @@ Describes a single eACL rule.
 
 | Field | Type | Label | Description |
 | ----- | ---- | ----- | ----------- |
-| operation | [Operation](#neo.fs.v2.acl.Operation) |  | FrostFS request Verb to match |
+| operation | [Operation](#neo.fs.v2.acl.Operation) |  | NeoFS request Verb to match |
 | action | [Action](#neo.fs.v2.acl.Action) |  | Rule execution result. Either allows or denies access if filters match. |
 | filters | [EACLRecord.Filter](#neo.fs.v2.acl.EACLRecord.Filter) | repeated | List of filters to match and see if rule is applicable |
 | targets | [EACLRecord.Target](#neo.fs.v2.acl.EACLRecord.Target) | repeated | List of target subjects to apply ACL rule to |
@@ -175,7 +152,7 @@ keys to match.
 Extended ACL rules table. A list of ACL rules defined additionally to Basic
 ACL. Extended ACL rules can be attached to a container and can be updated
 or may be defined in `BearerToken` structure. Please see the corresponding
-FrostFS Technical Specification section for detailed description.
+NeoFS Technical Specification section for detailed description.
 
 
 | Field | Type | Label | Description |
@@ -211,7 +188,7 @@ Enumeration of possible sources of Headers to apply filters.
 | HEADER_UNSPECIFIED | 0 | Unspecified header, default value. |
 | REQUEST | 1 | Filter request headers |
 | OBJECT | 2 | Filter object headers |
-| SERVICE | 3 | Filter service headers. These are not processed by FrostFS nodes and exist for service use only. |
+| SERVICE | 3 | Filter service headers. These are not processed by NeoFS nodes and exist for service use only. |
 
 
 
@@ -283,3 +260,4 @@ Target role of the access control rule in access control list.
 | <a name="bool" /> bool |  | bool | boolean | boolean |
 | <a name="string" /> string | A string must always contain UTF-8 encoded or 7-bit ASCII text. | string | String | str/unicode |
 | <a name="bytes" /> bytes | May contain any arbitrary sequence of bytes. | string | ByteString | str |
+

proto-docs/apemanager.md

@@ -1,269 +0,0 @@
-# Protocol Documentation
-<a name="top"></a>
-
-## Table of Contents
-
-- [apemanager/service.proto](#apemanager/service.proto)
-  - Services
-      - [APEManagerService](#frostfs.v2.apemanager.APEManagerService)
-
-  - Messages
-      - [AddChainRequest](#frostfs.v2.apemanager.AddChainRequest)
-      - [AddChainRequest.Body](#frostfs.v2.apemanager.AddChainRequest.Body)
-      - [AddChainResponse](#frostfs.v2.apemanager.AddChainResponse)
-      - [AddChainResponse.Body](#frostfs.v2.apemanager.AddChainResponse.Body)
-      - [ListChainsRequest](#frostfs.v2.apemanager.ListChainsRequest)
-      - [ListChainsRequest.Body](#frostfs.v2.apemanager.ListChainsRequest.Body)
-      - [ListChainsResponse](#frostfs.v2.apemanager.ListChainsResponse)
-      - [ListChainsResponse.Body](#frostfs.v2.apemanager.ListChainsResponse.Body)
-      - [RemoveChainRequest](#frostfs.v2.apemanager.RemoveChainRequest)
-      - [RemoveChainRequest.Body](#frostfs.v2.apemanager.RemoveChainRequest.Body)
-      - [RemoveChainResponse](#frostfs.v2.apemanager.RemoveChainResponse)
-      - [RemoveChainResponse.Body](#frostfs.v2.apemanager.RemoveChainResponse.Body)
-
-
-- [Scalar Value Types](#scalar-value-types)
-
-
-
-<a name="apemanager/service.proto"></a>
-<p align="right"><a href="#top">Top</a></p>
-
-## apemanager/service.proto
-
-
-
-
-<a name="frostfs.v2.apemanager.APEManagerService"></a>
-
-### Service "frostfs.v2.apemanager.APEManagerService"
-`APEManagerService` provides API to manage rule chains within sidechain's
-`Policy` smart contract.
-
-```
-rpc AddChain(AddChainRequest) returns (AddChainResponse);
-rpc RemoveChain(RemoveChainRequest) returns (RemoveChainResponse);
-rpc ListChains(ListChainsRequest) returns (ListChainsResponse);
-
-```
-
-#### Method AddChain
-
-Add a rule chain for a specific target to `Policy` smart contract.
-
-Statuses:
-- **OK** (0, SECTION_SUCCESS): \
-  the chain has been successfully added;
-- Common failures (SECTION_FAILURE_COMMON);
-- **CONTAINER_NOT_FOUND** (3072, SECTION_CONTAINER): \
-  container (as target) not found;
-- **APE_MANAGER_ACCESS_DENIED** (5120, SECTION_APE_MANAGER): \
-  the operation is denied by the service.
-
-| Name | Input | Output |
-| ---- | ----- | ------ |
-| AddChain | [AddChainRequest](#frostfs.v2.apemanager.AddChainRequest) | [AddChainResponse](#frostfs.v2.apemanager.AddChainResponse) |
-#### Method RemoveChain
-
-Remove a rule chain for a specific target from `Policy` smart contract.
-RemoveChain is an idempotent operation: removal of non-existing rule chain
-also means success.
-
-Statuses:
-- **OK** (0, SECTION_SUCCESS): \
-  the chain has been successfully removed;
-- Common failures (SECTION_FAILURE_COMMON);
-- **CONTAINER_NOT_FOUND** (3072, SECTION_CONTAINER): \
-  container (as target) not found;
-- **APE_MANAGER_ACCESS_DENIED** (5120, SECTION_APE_MANAGER): \
-  the operation is denied by the service.
-
-| Name | Input | Output |
-| ---- | ----- | ------ |
-| RemoveChain | [RemoveChainRequest](#frostfs.v2.apemanager.RemoveChainRequest) | [RemoveChainResponse](#frostfs.v2.apemanager.RemoveChainResponse) |
-#### Method ListChains
-
-List chains defined for a specific target from `Policy` smart contract.
-
-Statuses:
-- **OK** (0, SECTION_SUCCESS): \
-  chains have been successfully listed;
-- Common failures (SECTION_FAILURE_COMMON);
-- **CONTAINER_NOT_FOUND** (3072, SECTION_CONTAINER): \
-  container (as target) not found;
-- **APE_MANAGER_ACCESS_DENIED** (5120, SECTION_APE_MANAGER): \
-  the operation is denied by the service.
-
-| Name | Input | Output |
-| ---- | ----- | ------ |
-| ListChains | [ListChainsRequest](#frostfs.v2.apemanager.ListChainsRequest) | [ListChainsResponse](#frostfs.v2.apemanager.ListChainsResponse) |
- <!-- end services -->
-
-
-<a name="frostfs.v2.apemanager.AddChainRequest"></a>
-
-### Message AddChainRequest
-
-
-
-| Field | Type | Label | Description |
-| ----- | ---- | ----- | ----------- |
-| body | [AddChainRequest.Body](#frostfs.v2.apemanager.AddChainRequest.Body) |  | The request's body. |
-| meta_header | [neo.fs.v2.session.RequestMetaHeader](#neo.fs.v2.session.RequestMetaHeader) |  | Carries request meta information. Header data is used only to regulate message transport and does not affect request execution. |
-| verify_header | [neo.fs.v2.session.RequestVerificationHeader](#neo.fs.v2.session.RequestVerificationHeader) |  | Carries request verification information. This header is used to authenticate the nodes of the message route and check the correctness of transmission. |
-
-
-<a name="frostfs.v2.apemanager.AddChainRequest.Body"></a>
-
-### Message AddChainRequest.Body
-
-
-
-| Field | Type | Label | Description |
-| ----- | ---- | ----- | ----------- |
-| target | [frostfs.v2.ape.ChainTarget](#frostfs.v2.ape.ChainTarget) |  | A target for which a rule chain is added. |
-| chain | [frostfs.v2.ape.Chain](#frostfs.v2.ape.Chain) |  | The chain to set for the target. |
-
-
-<a name="frostfs.v2.apemanager.AddChainResponse"></a>
-
-### Message AddChainResponse
-
-
-
-| Field | Type | Label | Description |
-| ----- | ---- | ----- | ----------- |
-| body | [AddChainResponse.Body](#frostfs.v2.apemanager.AddChainResponse.Body) |  | The response's body. |
-| meta_header | [neo.fs.v2.session.ResponseMetaHeader](#neo.fs.v2.session.ResponseMetaHeader) |  | Carries response meta information. Header data is used only to regulate message transport and does not affect request execution. |
-| verify_header | [neo.fs.v2.session.ResponseVerificationHeader](#neo.fs.v2.session.ResponseVerificationHeader) |  | Carries response verification information. This header is used to authenticate the nodes of the message route and check the correctness of transmission. |
-
-
-<a name="frostfs.v2.apemanager.AddChainResponse.Body"></a>
-
-### Message AddChainResponse.Body
-
-
-
-| Field | Type | Label | Description |
-| ----- | ---- | ----- | ----------- |
-| chain_id | [bytes](#bytes) |  | Chain ID assigned for the added rule chain. If chain ID is left empty in the request, then it will be generated. |
-
-
-<a name="frostfs.v2.apemanager.ListChainsRequest"></a>
-
-### Message ListChainsRequest
-
-
-
-| Field | Type | Label | Description |
-| ----- | ---- | ----- | ----------- |
-| body | [ListChainsRequest.Body](#frostfs.v2.apemanager.ListChainsRequest.Body) |  | The request's body. |
-| meta_header | [neo.fs.v2.session.RequestMetaHeader](#neo.fs.v2.session.RequestMetaHeader) |  | Carries request meta information. Header data is used only to regulate message transport and does not affect request execution. |
-| verify_header | [neo.fs.v2.session.RequestVerificationHeader](#neo.fs.v2.session.RequestVerificationHeader) |  | Carries request verification information. This header is used to authenticate the nodes of the message route and check the correctness of transmission. |
-
-
-<a name="frostfs.v2.apemanager.ListChainsRequest.Body"></a>
-
-### Message ListChainsRequest.Body
-
-
-
-| Field | Type | Label | Description |
-| ----- | ---- | ----- | ----------- |
-| target | [frostfs.v2.ape.ChainTarget](#frostfs.v2.ape.ChainTarget) |  | Target for which rule chains are listed. |
-
-
-<a name="frostfs.v2.apemanager.ListChainsResponse"></a>
-
-### Message ListChainsResponse
-
-
-
-| Field | Type | Label | Description |
-| ----- | ---- | ----- | ----------- |
-| body | [ListChainsResponse.Body](#frostfs.v2.apemanager.ListChainsResponse.Body) |  | The response's body. |
-| meta_header | [neo.fs.v2.session.ResponseMetaHeader](#neo.fs.v2.session.ResponseMetaHeader) |  | Carries response meta information. Header data is used only to regulate message transport and does not affect request execution. |
-| verify_header | [neo.fs.v2.session.ResponseVerificationHeader](#neo.fs.v2.session.ResponseVerificationHeader) |  | Carries response verification information. This header is used to authenticate the nodes of the message route and check the correctness of transmission. |
-
-
-<a name="frostfs.v2.apemanager.ListChainsResponse.Body"></a>
-
-### Message ListChainsResponse.Body
-
-
-
-| Field | Type | Label | Description |
-| ----- | ---- | ----- | ----------- |
-| chains | [frostfs.v2.ape.Chain](#frostfs.v2.ape.Chain) | repeated | The list of chains defined for the reqeusted target. |
-
-
-<a name="frostfs.v2.apemanager.RemoveChainRequest"></a>
-
-### Message RemoveChainRequest
-
-
-
-| Field | Type | Label | Description |
-| ----- | ---- | ----- | ----------- |
-| body | [RemoveChainRequest.Body](#frostfs.v2.apemanager.RemoveChainRequest.Body) |  | The request's body. |
-| meta_header | [neo.fs.v2.session.RequestMetaHeader](#neo.fs.v2.session.RequestMetaHeader) |  | Carries request meta information. Header data is used only to regulate message transport and does not affect request execution. |
-| verify_header | [neo.fs.v2.session.RequestVerificationHeader](#neo.fs.v2.session.RequestVerificationHeader) |  | Carries request verification information. This header is used to authenticate the nodes of the message route and check the correctness of transmission. |
-
-
-<a name="frostfs.v2.apemanager.RemoveChainRequest.Body"></a>
-
-### Message RemoveChainRequest.Body
-
-
-
-| Field | Type | Label | Description |
-| ----- | ---- | ----- | ----------- |
-| target | [frostfs.v2.ape.ChainTarget](#frostfs.v2.ape.ChainTarget) |  | Target for which a rule chain is removed. |
-| chain_id | [bytes](#bytes) |  | Chain ID assigned for the rule chain. |
-
-
-<a name="frostfs.v2.apemanager.RemoveChainResponse"></a>
-
-### Message RemoveChainResponse
-
-
-
-| Field | Type | Label | Description |
-| ----- | ---- | ----- | ----------- |
-| body | [RemoveChainResponse.Body](#frostfs.v2.apemanager.RemoveChainResponse.Body) |  | The response's body. |
-| meta_header | [neo.fs.v2.session.ResponseMetaHeader](#neo.fs.v2.session.ResponseMetaHeader) |  | Carries response meta information. Header data is used only to regulate message transport and does not affect request execution. |
-| verify_header | [neo.fs.v2.session.ResponseVerificationHeader](#neo.fs.v2.session.ResponseVerificationHeader) |  | Carries response verification information. This header is used to authenticate the nodes of the message route and check the correctness of transmission. |
-
-
-<a name="frostfs.v2.apemanager.RemoveChainResponse.Body"></a>
-
-### Message RemoveChainResponse.Body
-Since RemoveChain is an idempotent operation, then the only indicator that
-operation could not be performed is an error returning to a client.
-
-
- <!-- end messages -->
-
- <!-- end enums -->
-
-
-
-## Scalar Value Types
-
-| .proto Type | Notes | C++ Type | Java Type | Python Type |
-| ----------- | ----- | -------- | --------- | ----------- |
-| <a name="double" /> double |  | double | double | float |
-| <a name="float" /> float |  | float | float | float |
-| <a name="int32" /> int32 | Uses variable-length encoding. Inefficient for encoding negative numbers – if your field is likely to have negative values, use sint32 instead. | int32 | int | int |
-| <a name="int64" /> int64 | Uses variable-length encoding. Inefficient for encoding negative numbers – if your field is likely to have negative values, use sint64 instead. | int64 | long | int/long |
-| <a name="uint32" /> uint32 | Uses variable-length encoding. | uint32 | int | int/long |
-| <a name="uint64" /> uint64 | Uses variable-length encoding. | uint64 | long | int/long |
-| <a name="sint32" /> sint32 | Uses variable-length encoding. Signed int value. These more efficiently encode negative numbers than regular int32s. | int32 | int | int |
-| <a name="sint64" /> sint64 | Uses variable-length encoding. Signed int value. These more efficiently encode negative numbers than regular int64s. | int64 | long | int/long |
-| <a name="fixed32" /> fixed32 | Always four bytes. More efficient than uint32 if values are often greater than 2^28. | uint32 | int | int |
-| <a name="fixed64" /> fixed64 | Always eight bytes. More efficient than uint64 if values are often greater than 2^56. | uint64 | long | int/long |
-| <a name="sfixed32" /> sfixed32 | Always four bytes. | int32 | int | int |
-| <a name="sfixed64" /> sfixed64 | Always eight bytes. | int64 | long | int/long |
-| <a name="bool" /> bool |  | bool | boolean | boolean |
-| <a name="string" /> string | A string must always contain UTF-8 encoded or 7-bit ASCII text. | string | String | str/unicode |
-| <a name="bytes" /> bytes | May contain any arbitrary sequence of bytes. | string | ByteString | str |

proto-docs/audit.md

@@ -0,0 +1,74 @@
+# Protocol Documentation
+<a name="top"></a>
+
+## Table of Contents
+
+- [audit/types.proto](#audit/types.proto)
+
+  - Messages
+    - [DataAuditResult](#neo.fs.v2.audit.DataAuditResult)
+    
+
+- [Scalar Value Types](#scalar-value-types)
+
+
+
+<a name="audit/types.proto"></a>
+<p align="right"><a href="#top">Top</a></p>
+
+## audit/types.proto
+
+
+ <!-- end services -->
+
+
+<a name="neo.fs.v2.audit.DataAuditResult"></a>
+
+### Message DataAuditResult
+DataAuditResult keeps record of conducted Data Audits. The detailed report is
+generated separately.
+
+
+| Field | Type | Label | Description |
+| ----- | ---- | ----- | ----------- |
+| version | [neo.fs.v2.refs.Version](#neo.fs.v2.refs.Version) |  | Data Audit Result format version. Effectively, the version of API library used to report DataAuditResult structure. |
+| audit_epoch | [fixed64](#fixed64) |  | Epoch number when the Data Audit was conducted |
+| container_id | [neo.fs.v2.refs.ContainerID](#neo.fs.v2.refs.ContainerID) |  | Container under audit |
+| public_key | [bytes](#bytes) |  | Public key of the auditing InnerRing node in a binary format |
+| complete | [bool](#bool) |  | Shows if Data Audit process was complete in time or if it was cancelled |
+| requests | [uint32](#uint32) |  | Number of request done at PoR stage |
+| retries | [uint32](#uint32) |  | Number of retries done at PoR stage |
+| pass_sg | [neo.fs.v2.refs.ObjectID](#neo.fs.v2.refs.ObjectID) | repeated | List of Storage Groups that passed audit PoR stage |
+| fail_sg | [neo.fs.v2.refs.ObjectID](#neo.fs.v2.refs.ObjectID) | repeated | List of Storage Groups that failed audit PoR stage |
+| hit | [uint32](#uint32) |  | Number of sampled objects under the audit placed in an optimal way according to the containers placement policy when checking PoP |
+| miss | [uint32](#uint32) |  | Number of sampled objects under the audit placed in suboptimal way according to the containers placement policy, but still at a satisfactory level when checking PoP |
+| fail | [uint32](#uint32) |  | Number of sampled objects under the audit stored inconsistently with the placement policy or not found at all when checking PoP |
+| pass_nodes | [bytes](#bytes) | repeated | List of storage node public keys that passed at least one PDP |
+| fail_nodes | [bytes](#bytes) | repeated | List of storage node public keys that failed at least one PDP |
+
+ <!-- end messages -->
+
+ <!-- end enums -->
+
+
+
+## Scalar Value Types
+
+| .proto Type | Notes | C++ Type | Java Type | Python Type |
+| ----------- | ----- | -------- | --------- | ----------- |
+| <a name="double" /> double |  | double | double | float |
+| <a name="float" /> float |  | float | float | float |
+| <a name="int32" /> int32 | Uses variable-length encoding. Inefficient for encoding negative numbers – if your field is likely to have negative values, use sint32 instead. | int32 | int | int |
+| <a name="int64" /> int64 | Uses variable-length encoding. Inefficient for encoding negative numbers – if your field is likely to have negative values, use sint64 instead. | int64 | long | int/long |
+| <a name="uint32" /> uint32 | Uses variable-length encoding. | uint32 | int | int/long |
+| <a name="uint64" /> uint64 | Uses variable-length encoding. | uint64 | long | int/long |
+| <a name="sint32" /> sint32 | Uses variable-length encoding. Signed int value. These more efficiently encode negative numbers than regular int32s. | int32 | int | int |
+| <a name="sint64" /> sint64 | Uses variable-length encoding. Signed int value. These more efficiently encode negative numbers than regular int64s. | int64 | long | int/long |
+| <a name="fixed32" /> fixed32 | Always four bytes. More efficient than uint32 if values are often greater than 2^28. | uint32 | int | int |
+| <a name="fixed64" /> fixed64 | Always eight bytes. More efficient than uint64 if values are often greater than 2^56. | uint64 | long | int/long |
+| <a name="sfixed32" /> sfixed32 | Always four bytes. | int32 | int | int |
+| <a name="sfixed64" /> sfixed64 | Always eight bytes. | int64 | long | int/long |
+| <a name="bool" /> bool |  | bool | boolean | boolean |
+| <a name="string" /> string | A string must always contain UTF-8 encoded or 7-bit ASCII text. | string | String | str/unicode |
+| <a name="bytes" /> bytes | May contain any arbitrary sequence of bytes. | string | ByteString | str |
+

proto-docs/bootstrap.md

@@ -0,0 +1,89 @@
+# Protocol Documentation
+<a name="top"></a>
+
+## Table of Contents
+
+- [bootstrap/types.proto](#bootstrap/types.proto)
+
+  - Messages
+    - [NodeInfo](#bootstrap.NodeInfo)
+    - [NodeInfo.Attribute](#bootstrap.NodeInfo.Attribute)
+    
+
+- [Scalar Value Types](#scalar-value-types)
+
+
+
+<a name="bootstrap/types.proto"></a>
+<p align="right"><a href="#top">Top</a></p>
+
+## bootstrap/types.proto
+
+
+ <!-- end services -->
+
+
+<a name="bootstrap.NodeInfo"></a>
+
+### Message NodeInfo
+Groups the information about the NeoFS node.
+
+
+| Field | Type | Label | Description |
+| ----- | ---- | ----- | ----------- |
+| Address | [string](#string) |  | Carries network address of the NeoFS node. |
+| PublicKey | [bytes](#bytes) |  | Carries public key of the NeoFS node in a binary format. |
+| Attributes | [NodeInfo.Attribute](#bootstrap.NodeInfo.Attribute) | repeated | Carries list of the NeoFS node attributes in a string key-value format. |
+| state | [NodeInfo.State](#bootstrap.NodeInfo.State) |  | Carries state of the NeoFS node. |
+
+
+<a name="bootstrap.NodeInfo.Attribute"></a>
+
+### Message NodeInfo.Attribute
+Groups attributes of the NeoFS node.
+
+
+| Field | Type | Label | Description |
+| ----- | ---- | ----- | ----------- |
+| Key | [string](#string) |  | Carries string key to the node attribute. |
+| Value | [string](#string) |  | Carries string value of the node attribute. |
+
+ <!-- end messages -->
+
+
+<a name="bootstrap.NodeInfo.State"></a>
+
+### NodeInfo.State
+Represents the enumeration of various states of the NeoFS node.
+
+| Name | Number | Description |
+| ---- | ------ | ----------- |
+| Unknown | 0 | Undefined state. |
+| Online | 1 | Active state on the network. |
+| Offline | 2 | Network unavailable state. |
+
+
+ <!-- end enums -->
+
+
+
+## Scalar Value Types
+
+| .proto Type | Notes | C++ Type | Java Type | Python Type |
+| ----------- | ----- | -------- | --------- | ----------- |
+| <a name="double" /> double |  | double | double | float |
+| <a name="float" /> float |  | float | float | float |
+| <a name="int32" /> int32 | Uses variable-length encoding. Inefficient for encoding negative numbers – if your field is likely to have negative values, use sint32 instead. | int32 | int | int |
+| <a name="int64" /> int64 | Uses variable-length encoding. Inefficient for encoding negative numbers – if your field is likely to have negative values, use sint64 instead. | int64 | long | int/long |
+| <a name="uint32" /> uint32 | Uses variable-length encoding. | uint32 | int | int/long |
+| <a name="uint64" /> uint64 | Uses variable-length encoding. | uint64 | long | int/long |
+| <a name="sint32" /> sint32 | Uses variable-length encoding. Signed int value. These more efficiently encode negative numbers than regular int32s. | int32 | int | int |
+| <a name="sint64" /> sint64 | Uses variable-length encoding. Signed int value. These more efficiently encode negative numbers than regular int64s. | int64 | long | int/long |
+| <a name="fixed32" /> fixed32 | Always four bytes. More efficient than uint32 if values are often greater than 2^28. | uint32 | int | int |
+| <a name="fixed64" /> fixed64 | Always eight bytes. More efficient than uint64 if values are often greater than 2^56. | uint64 | long | int/long |
+| <a name="sfixed32" /> sfixed32 | Always four bytes. | int32 | int | int |
+| <a name="sfixed64" /> sfixed64 | Always eight bytes. | int64 | long | int/long |
+| <a name="bool" /> bool |  | bool | boolean | boolean |
+| <a name="string" /> string | A string must always contain UTF-8 encoded or 7-bit ASCII text. | string | String | str/unicode |
+| <a name="bytes" /> bytes | May contain any arbitrary sequence of bytes. | string | ByteString | str |
+

proto-docs/container.md

@@ -4,34 +4,47 @@
 ## Table of Contents
 
 - [container/service.proto](#container/service.proto)
-  - Services
+ - Services
-      - [ContainerService](#neo.fs.v2.container.ContainerService)
+    - [ContainerService](#neo.fs.v2.container.ContainerService)
-
+    
   - Messages
-      - [DeleteRequest](#neo.fs.v2.container.DeleteRequest)
+    - [AnnounceUsedSpaceRequest](#neo.fs.v2.container.AnnounceUsedSpaceRequest)
-      - [DeleteRequest.Body](#neo.fs.v2.container.DeleteRequest.Body)
+    - [AnnounceUsedSpaceRequest.Body](#neo.fs.v2.container.AnnounceUsedSpaceRequest.Body)
-      - [DeleteResponse](#neo.fs.v2.container.DeleteResponse)
+    - [AnnounceUsedSpaceRequest.Body.Announcement](#neo.fs.v2.container.AnnounceUsedSpaceRequest.Body.Announcement)
-      - [DeleteResponse.Body](#neo.fs.v2.container.DeleteResponse.Body)
+    - [AnnounceUsedSpaceResponse](#neo.fs.v2.container.AnnounceUsedSpaceResponse)
-      - [GetRequest](#neo.fs.v2.container.GetRequest)
+    - [AnnounceUsedSpaceResponse.Body](#neo.fs.v2.container.AnnounceUsedSpaceResponse.Body)
-      - [GetRequest.Body](#neo.fs.v2.container.GetRequest.Body)
+    - [DeleteRequest](#neo.fs.v2.container.DeleteRequest)
-      - [GetResponse](#neo.fs.v2.container.GetResponse)
+    - [DeleteRequest.Body](#neo.fs.v2.container.DeleteRequest.Body)
-      - [GetResponse.Body](#neo.fs.v2.container.GetResponse.Body)
+    - [DeleteResponse](#neo.fs.v2.container.DeleteResponse)
-      - [ListRequest](#neo.fs.v2.container.ListRequest)
+    - [DeleteResponse.Body](#neo.fs.v2.container.DeleteResponse.Body)
-      - [ListRequest.Body](#neo.fs.v2.container.ListRequest.Body)
+    - [GetExtendedACLRequest](#neo.fs.v2.container.GetExtendedACLRequest)
-      - [ListResponse](#neo.fs.v2.container.ListResponse)
+    - [GetExtendedACLRequest.Body](#neo.fs.v2.container.GetExtendedACLRequest.Body)
-      - [ListResponse.Body](#neo.fs.v2.container.ListResponse.Body)
+    - [GetExtendedACLResponse](#neo.fs.v2.container.GetExtendedACLResponse)
-      - [PutRequest](#neo.fs.v2.container.PutRequest)
+    - [GetExtendedACLResponse.Body](#neo.fs.v2.container.GetExtendedACLResponse.Body)
-      - [PutRequest.Body](#neo.fs.v2.container.PutRequest.Body)
+    - [GetRequest](#neo.fs.v2.container.GetRequest)
-      - [PutResponse](#neo.fs.v2.container.PutResponse)
+    - [GetRequest.Body](#neo.fs.v2.container.GetRequest.Body)
-      - [PutResponse.Body](#neo.fs.v2.container.PutResponse.Body)
+    - [GetResponse](#neo.fs.v2.container.GetResponse)
-
+    - [GetResponse.Body](#neo.fs.v2.container.GetResponse.Body)
+    - [ListRequest](#neo.fs.v2.container.ListRequest)
+    - [ListRequest.Body](#neo.fs.v2.container.ListRequest.Body)
+    - [ListResponse](#neo.fs.v2.container.ListResponse)
+    - [ListResponse.Body](#neo.fs.v2.container.ListResponse.Body)
+    - [PutRequest](#neo.fs.v2.container.PutRequest)
+    - [PutRequest.Body](#neo.fs.v2.container.PutRequest.Body)
+    - [PutResponse](#neo.fs.v2.container.PutResponse)
+    - [PutResponse.Body](#neo.fs.v2.container.PutResponse.Body)
+    - [SetExtendedACLRequest](#neo.fs.v2.container.SetExtendedACLRequest)
+    - [SetExtendedACLRequest.Body](#neo.fs.v2.container.SetExtendedACLRequest.Body)
+    - [SetExtendedACLResponse](#neo.fs.v2.container.SetExtendedACLResponse)
+    - [SetExtendedACLResponse.Body](#neo.fs.v2.container.SetExtendedACLResponse.Body)
+    
 
 - [container/types.proto](#container/types.proto)
 
   - Messages
-      - [Container](#neo.fs.v2.container.Container)
+    - [Container](#neo.fs.v2.container.Container)
-      - [Container.Attribute](#neo.fs.v2.container.Container.Attribute)
+    - [Container.Attribute](#neo.fs.v2.container.Container.Attribute)
-
+    
 
 - [Scalar Value Types](#scalar-value-types)
 
@@ -49,8 +62,8 @@
 
 ### Service "neo.fs.v2.container.ContainerService"
 `ContainerService` provides API to interact with `Container` smart contract
-in FrostFS sidechain via other FrostFS nodes. All of those actions can be
+in NeoFS sidechain via other NeoFS nodes. All of those actions can be done
-done equivalently by directly issuing transactions and RPC calls to sidechain
+equivalently by directly issuing transactions and RPC calls to sidechain
 nodes.
 
 ```
@@ -58,6 +71,9 @@ rpc Put(PutRequest) returns (PutResponse);
 rpc Delete(DeleteRequest) returns (DeleteResponse);
 rpc Get(GetRequest) returns (GetResponse);
 rpc List(ListRequest) returns (ListResponse);
+rpc SetExtendedACL(SetExtendedACLRequest) returns (SetExtendedACLResponse);
+rpc GetExtendedACL(GetExtendedACLRequest) returns (GetExtendedACLResponse);
+rpc AnnounceUsedSpace(AnnounceUsedSpaceRequest) returns (AnnounceUsedSpaceResponse);
 
 ```
 
@@ -65,15 +81,13 @@ rpc List(ListRequest) returns (ListResponse);
 
 `Put` invokes `Container` smart contract's `Put` method and returns
 response immediately. After a new block is issued in sidechain, request is
-verified by Inner Ring nodes. After one more block in sidechain, the
+verified by Inner Ring nodes. After one more block in sidechain, the container
-container is added into smart contract storage.
+is added into smart contract storage.
 
 Statuses:
 - **OK** (0, SECTION_SUCCESS): \
   request to save the container has been sent to the sidechain;
-- Common failures (SECTION_FAILURE_COMMON);
+- Common failures (SECTION_FAILURE_COMMON).
-- **CONTAINER_ACCESS_DENIED** (3074, SECTION_CONTAINER): \
-  container create access denied.
 
 | Name | Input | Output |
 | ---- | ----- | ------ |
@@ -82,15 +96,13 @@ Statuses:
 
 `Delete` invokes `Container` smart contract's `Delete` method and returns
 response immediately. After a new block is issued in sidechain, request is
-verified by Inner Ring nodes. After one more block in sidechain, the
+verified by Inner Ring nodes. After one more block in sidechain, the container
-container is added into smart contract storage.
+is added into smart contract storage.
 
 Statuses:
 - **OK** (0, SECTION_SUCCESS): \
   request to remove the container has been sent to the sidechain;
-- Common failures (SECTION_FAILURE_COMMON);
+- Common failures (SECTION_FAILURE_COMMON).
-- **CONTAINER_ACCESS_DENIED** (3074, SECTION_CONTAINER): \
-  container delete access denied.
 
 | Name | Input | Output |
 | ---- | ----- | ------ |
@@ -104,9 +116,7 @@ Statuses:
   container has been successfully read;
 - Common failures (SECTION_FAILURE_COMMON);
 - **CONTAINER_NOT_FOUND** (3072, SECTION_CONTAINER): \
-  requested container not found;
+  requested container not found.
-- **CONTAINER_ACCESS_DENIED** (3074, SECTION_CONTAINER): \
-  access to container is denied.
 
 | Name | Input | Output |
 | ---- | ----- | ------ |
@@ -118,16 +128,115 @@ Returns all owner's containers from 'Container` smart contract' storage.
 Statuses:
 - **OK** (0, SECTION_SUCCESS): \
   container list has been successfully read;
-- Common failures (SECTION_FAILURE_COMMON);
+- Common failures (SECTION_FAILURE_COMMON).
-- **CONTAINER_ACCESS_DENIED** (3074, SECTION_CONTAINER): \
-  container list access denied.
 
 | Name | Input | Output |
 | ---- | ----- | ------ |
 | List | [ListRequest](#neo.fs.v2.container.ListRequest) | [ListResponse](#neo.fs.v2.container.ListResponse) |
+#### Method SetExtendedACL
+
+Invokes 'SetEACL' method of 'Container` smart contract and returns response
+immediately. After one more block in sidechain, changes in an Extended ACL are
+added into smart contract storage.
+
+Statuses:
+- **OK** (0, SECTION_SUCCESS): \
+  request to save container eACL has been sent to the sidechain;
+- Common failures (SECTION_FAILURE_COMMON).
+
+| Name | Input | Output |
+| ---- | ----- | ------ |
+| SetExtendedACL | [SetExtendedACLRequest](#neo.fs.v2.container.SetExtendedACLRequest) | [SetExtendedACLResponse](#neo.fs.v2.container.SetExtendedACLResponse) |
+#### Method GetExtendedACL
+
+Returns Extended ACL table and signature from `Container` smart contract
+storage.
+
+Statuses:
+- **OK** (0, SECTION_SUCCESS): \
+  container eACL has been successfully read;
+- Common failures (SECTION_FAILURE_COMMON);
+- **CONTAINER_NOT_FOUND** (3072, SECTION_CONTAINER): \
+  container not found;
+- **EACL_NOT_FOUND** (3073, SECTION_CONTAINER): \
+  eACL table not found.
+
+| Name | Input | Output |
+| ---- | ----- | ------ |
+| GetExtendedACL | [GetExtendedACLRequest](#neo.fs.v2.container.GetExtendedACLRequest) | [GetExtendedACLResponse](#neo.fs.v2.container.GetExtendedACLResponse) |
+#### Method AnnounceUsedSpace
+
+Announces the space values used by the container for P2P synchronization.
+
+Statuses:
+- **OK** (0, SECTION_SUCCESS): \
+  estimation of used space has been successfully announced;
+- Common failures (SECTION_FAILURE_COMMON).
+
+| Name | Input | Output |
+| ---- | ----- | ------ |
+| AnnounceUsedSpace | [AnnounceUsedSpaceRequest](#neo.fs.v2.container.AnnounceUsedSpaceRequest) | [AnnounceUsedSpaceResponse](#neo.fs.v2.container.AnnounceUsedSpaceResponse) |
  <!-- end services -->
 
 
+<a name="neo.fs.v2.container.AnnounceUsedSpaceRequest"></a>
+
+### Message AnnounceUsedSpaceRequest
+Announce container used space
+
+
+| Field | Type | Label | Description |
+| ----- | ---- | ----- | ----------- |
+| body | [AnnounceUsedSpaceRequest.Body](#neo.fs.v2.container.AnnounceUsedSpaceRequest.Body) |  | Body of announce used space request message. |
+| meta_header | [neo.fs.v2.session.RequestMetaHeader](#neo.fs.v2.session.RequestMetaHeader) |  | Carries request meta information. Header data is used only to regulate message transport and does not affect request execution. |
+| verify_header | [neo.fs.v2.session.RequestVerificationHeader](#neo.fs.v2.session.RequestVerificationHeader) |  | Carries request verification information. This header is used to authenticate the nodes of the message route and check the correctness of transmission. |
+
+
+<a name="neo.fs.v2.container.AnnounceUsedSpaceRequest.Body"></a>
+
+### Message AnnounceUsedSpaceRequest.Body
+Container used space announcement body.
+
+
+| Field | Type | Label | Description |
+| ----- | ---- | ----- | ----------- |
+| announcements | [AnnounceUsedSpaceRequest.Body.Announcement](#neo.fs.v2.container.AnnounceUsedSpaceRequest.Body.Announcement) | repeated | List of announcements. If nodes share several containers, announcements are transferred in a batch. |
+
+
+<a name="neo.fs.v2.container.AnnounceUsedSpaceRequest.Body.Announcement"></a>
+
+### Message AnnounceUsedSpaceRequest.Body.Announcement
+Announcement contains used space information for a single container.
+
+
+| Field | Type | Label | Description |
+| ----- | ---- | ----- | ----------- |
+| epoch | [uint64](#uint64) |  | Epoch number for which the container size estimation was produced. |
+| container_id | [neo.fs.v2.refs.ContainerID](#neo.fs.v2.refs.ContainerID) |  | Identifier of the container. |
+| used_space | [uint64](#uint64) |  | Used space is a sum of object payload sizes of a specified container, stored in the node. It must not include inhumed objects. |
+
+
+<a name="neo.fs.v2.container.AnnounceUsedSpaceResponse"></a>
+
+### Message AnnounceUsedSpaceResponse
+Announce container used space
+
+
+| Field | Type | Label | Description |
+| ----- | ---- | ----- | ----------- |
+| body | [AnnounceUsedSpaceResponse.Body](#neo.fs.v2.container.AnnounceUsedSpaceResponse.Body) |  | Body of announce used space response message. |
+| meta_header | [neo.fs.v2.session.ResponseMetaHeader](#neo.fs.v2.session.ResponseMetaHeader) |  | Carries response meta information. Header data is used only to regulate message transport and does not affect request execution. |
+| verify_header | [neo.fs.v2.session.ResponseVerificationHeader](#neo.fs.v2.session.ResponseVerificationHeader) |  | Carries response verification information. This header is used to authenticate the nodes of the message route and check the correctness of transmission. |
+
+
+<a name="neo.fs.v2.container.AnnounceUsedSpaceResponse.Body"></a>
+
+### Message AnnounceUsedSpaceResponse.Body
+`AnnounceUsedSpaceResponse` has an empty body because announcements are
+one way communication.
+
+
+
 <a name="neo.fs.v2.container.DeleteRequest"></a>
 
 ### Message DeleteRequest
@@ -151,7 +260,7 @@ smart contract, so signing algorithm must be supported by NeoVM.
 
 | Field | Type | Label | Description |
 | ----- | ---- | ----- | ----------- |
-| container_id | [neo.fs.v2.refs.ContainerID](#neo.fs.v2.refs.ContainerID) |  | Identifier of the container to delete from FrostFS |
+| container_id | [neo.fs.v2.refs.ContainerID](#neo.fs.v2.refs.ContainerID) |  | Identifier of the container to delete from NeoFS |
 | signature | [neo.fs.v2.refs.SignatureRFC6979](#neo.fs.v2.refs.SignatureRFC6979) |  | `ContainerID` signed with the container owner's key according to RFC-6979. |
 
 
@@ -177,6 +286,58 @@ and done via consensus in Inner Ring nodes.
 
 
 
+<a name="neo.fs.v2.container.GetExtendedACLRequest"></a>
+
+### Message GetExtendedACLRequest
+Get Extended ACL
+
+
+| Field | Type | Label | Description |
+| ----- | ---- | ----- | ----------- |
+| body | [GetExtendedACLRequest.Body](#neo.fs.v2.container.GetExtendedACLRequest.Body) |  | Body of get extended acl request message. |
+| meta_header | [neo.fs.v2.session.RequestMetaHeader](#neo.fs.v2.session.RequestMetaHeader) |  | Carries request meta information. Header data is used only to regulate message transport and does not affect request execution. |
+| verify_header | [neo.fs.v2.session.RequestVerificationHeader](#neo.fs.v2.session.RequestVerificationHeader) |  | Carries request verification information. This header is used to authenticate the nodes of the message route and check the correctness of transmission. |
+
+
+<a name="neo.fs.v2.container.GetExtendedACLRequest.Body"></a>
+
+### Message GetExtendedACLRequest.Body
+Get Extended ACL request body
+
+
+| Field | Type | Label | Description |
+| ----- | ---- | ----- | ----------- |
+| container_id | [neo.fs.v2.refs.ContainerID](#neo.fs.v2.refs.ContainerID) |  | Identifier of the container having Extended ACL |
+
+
+<a name="neo.fs.v2.container.GetExtendedACLResponse"></a>
+
+### Message GetExtendedACLResponse
+Get Extended ACL
+
+
+| Field | Type | Label | Description |
+| ----- | ---- | ----- | ----------- |
+| body | [GetExtendedACLResponse.Body](#neo.fs.v2.container.GetExtendedACLResponse.Body) |  | Body of get extended acl response message. |
+| meta_header | [neo.fs.v2.session.ResponseMetaHeader](#neo.fs.v2.session.ResponseMetaHeader) |  | Carries response meta information. Header data is used only to regulate message transport and does not affect request execution. |
+| verify_header | [neo.fs.v2.session.ResponseVerificationHeader](#neo.fs.v2.session.ResponseVerificationHeader) |  | Carries response verification information. This header is used to authenticate the nodes of the message route and check the correctness of transmission. |
+
+
+<a name="neo.fs.v2.container.GetExtendedACLResponse.Body"></a>
+
+### Message GetExtendedACLResponse.Body
+Get Extended ACL Response body can be empty if the requested container does
+not have Extended ACL Table attached or Extended ACL has not been allowed at
+the time of container creation.
+
+
+| Field | Type | Label | Description |
+| ----- | ---- | ----- | ----------- |
+| eacl | [neo.fs.v2.acl.EACLTable](#neo.fs.v2.acl.EACLTable) |  | Extended ACL requested, if available |
+| signature | [neo.fs.v2.refs.SignatureRFC6979](#neo.fs.v2.refs.SignatureRFC6979) |  | Signature of stable-marshalled Extended ACL according to RFC-6979. |
+| session_token | [neo.fs.v2.session.SessionToken](#neo.fs.v2.session.SessionToken) |  | Session token if Extended ACL was set within a session |
+
+
 <a name="neo.fs.v2.container.GetRequest"></a>
 
 ### Message GetRequest
@@ -279,7 +440,7 @@ List containers response body.
 <a name="neo.fs.v2.container.PutRequest"></a>
 
 ### Message PutRequest
-New FrostFS Container creation request
+New NeoFS Container creation request
 
 
 | Field | Type | Label | Description |
@@ -301,14 +462,14 @@ additional signature checks.
 
 | Field | Type | Label | Description |
 | ----- | ---- | ----- | ----------- |
-| container | [Container](#neo.fs.v2.container.Container) |  | Container structure to register in FrostFS |
+| container | [Container](#neo.fs.v2.container.Container) |  | Container structure to register in NeoFS |
 | signature | [neo.fs.v2.refs.SignatureRFC6979](#neo.fs.v2.refs.SignatureRFC6979) |  | Signature of a stable-marshalled container according to RFC-6979. |
 
 
 <a name="neo.fs.v2.container.PutResponse"></a>
 
 ### Message PutResponse
-New FrostFS Container creation response
+New NeoFS Container creation response
 
 
 | Field | Type | Label | Description |
@@ -331,6 +492,54 @@ returned here to make sure everything has been done as expected.
 | ----- | ---- | ----- | ----------- |
 | container_id | [neo.fs.v2.refs.ContainerID](#neo.fs.v2.refs.ContainerID) |  | Unique identifier of the newly created container |
 
+
+<a name="neo.fs.v2.container.SetExtendedACLRequest"></a>
+
+### Message SetExtendedACLRequest
+Set Extended ACL
+
+
+| Field | Type | Label | Description |
+| ----- | ---- | ----- | ----------- |
+| body | [SetExtendedACLRequest.Body](#neo.fs.v2.container.SetExtendedACLRequest.Body) |  | Body of set extended acl request message. |
+| meta_header | [neo.fs.v2.session.RequestMetaHeader](#neo.fs.v2.session.RequestMetaHeader) |  | Carries request meta information. Header data is used only to regulate message transport and does not affect request execution. |
+| verify_header | [neo.fs.v2.session.RequestVerificationHeader](#neo.fs.v2.session.RequestVerificationHeader) |  | Carries request verification information. This header is used to authenticate the nodes of the message route and check the correctness of transmission. |
+
+
+<a name="neo.fs.v2.container.SetExtendedACLRequest.Body"></a>
+
+### Message SetExtendedACLRequest.Body
+Set Extended ACL request body does not have separate `ContainerID`
+reference. It will be taken from `EACLTable.container_id` field.
+
+
+| Field | Type | Label | Description |
+| ----- | ---- | ----- | ----------- |
+| eacl | [neo.fs.v2.acl.EACLTable](#neo.fs.v2.acl.EACLTable) |  | Extended ACL table to set for the container |
+| signature | [neo.fs.v2.refs.SignatureRFC6979](#neo.fs.v2.refs.SignatureRFC6979) |  | Signature of stable-marshalled Extended ACL table according to RFC-6979. |
+
+
+<a name="neo.fs.v2.container.SetExtendedACLResponse"></a>
+
+### Message SetExtendedACLResponse
+Set Extended ACL
+
+
+| Field | Type | Label | Description |
+| ----- | ---- | ----- | ----------- |
+| body | [SetExtendedACLResponse.Body](#neo.fs.v2.container.SetExtendedACLResponse.Body) |  | Body of set extended acl response message. |
+| meta_header | [neo.fs.v2.session.ResponseMetaHeader](#neo.fs.v2.session.ResponseMetaHeader) |  | Carries response meta information. Header data is used only to regulate message transport and does not affect request execution. |
+| verify_header | [neo.fs.v2.session.ResponseVerificationHeader](#neo.fs.v2.session.ResponseVerificationHeader) |  | Carries response verification information. This header is used to authenticate the nodes of the message route and check the correctness of transmission. |
+
+
+<a name="neo.fs.v2.container.SetExtendedACLResponse.Body"></a>
+
+### Message SetExtendedACLResponse.Body
+`SetExtendedACLResponse` has an empty body because the operation is
+asynchronous and the update should be reflected in `Container` smart contract's
+storage after next block is issued in sidechain.
+
+
  <!-- end messages -->
 
  <!-- end enums -->
@@ -351,8 +560,8 @@ returned here to make sure everything has been done as expected.
 ### Message Container
 Container is a structure that defines object placement behaviour. Objects can
 be stored only within containers. They define placement rule, attributes and
-access control information. An ID of a container is a 32 byte long SHA256
+access control information. An ID of a container is a 32 byte long SHA256 hash
-hash of stable-marshalled container message.
+of stable-marshalled container message.
 
 
 | Field | Type | Label | Description |
@@ -369,8 +578,8 @@ hash of stable-marshalled container message.
 
 ### Message Container.Attribute
 `Attribute` is a user-defined Key-Value metadata pair attached to the
-container. Container attributes are immutable. They are set at the moment
+container. Container attributes are immutable. They are set at the moment of
-of container creation and can never be added or updated.
+container creation and can never be added or updated.
 
 Key name must be a container-unique valid UTF-8 string. Value can't be
 empty. Containers with duplicated attribute names or attributes with empty
@@ -378,22 +587,25 @@ values will be considered invalid.
 
 There are some "well-known" attributes affecting system behaviour:
 
+* [ __SYSTEM__SUBNET ] \
+  (`__NEOFS__SUBNET` is deprecated) \
+  String ID of a container's storage subnet. Any container can be attached to
+  one subnet only.
 * [ __SYSTEM__NAME ] \
   (`__NEOFS__NAME` is deprecated) \
   String of a human-friendly container name registered as a domain in
   NNS contract.
 * [ __SYSTEM__ZONE ]  \
   (`__NEOFS__ZONE` is deprecated) \
-  String of a zone for `__SYSTEM__NAME` (`__NEOFS__NAME` is deprecated).
+  String of a zone for `__SYSTEM__NAME` (`__NEOFS__NAME` is deprecated). Used as a TLD of a domain name in NNS
-  Used as a TLD of a domain name in NNS contract. If no zone is specified,
+  contract. If no zone is specified, use default zone: `container`.
-  use default zone: `container`.
 * [ __SYSTEM__DISABLE_HOMOMORPHIC_HASHING ] \
   (`__NEOFS__DISABLE_HOMOMORPHIC_HASHING` is deprecated) \
-  Disables homomorphic hashing for the container if the value equals "true"
+  Disables homomorphic hashing for the container if the value equals "true" string.
-  string. Any other values are interpreted as missing attribute. Container
+  Any other values are interpreted as missing attribute. Container could be
-  could be accepted in a FrostFS network only if the global network hashing
+  accepted in a NeoFS network only if the global network hashing configuration
-  configuration value corresponds with that attribute's value. After
+  value corresponds with that attribute's value. After container inclusion, network
-  container inclusion, network setting is ignored.
+  setting is ignored.
 
 And some well-known attributes used by applications only:
 
@@ -433,3 +645,4 @@ And some well-known attributes used by applications only:
 | <a name="bool" /> bool |  | bool | boolean | boolean |
 | <a name="string" /> string | A string must always contain UTF-8 encoded or 7-bit ASCII text. | string | String | str/unicode |
 | <a name="bytes" /> bytes | May contain any arbitrary sequence of bytes. | string | ByteString | str |
+

proto-docs/lock.md

@@ -6,8 +6,8 @@
 - [lock/types.proto](#lock/types.proto)
 
   - Messages
-      - [Lock](#neo.fs.v2.lock.Lock)
+    - [Lock](#neo.fs.v2.lock.Lock)
-
+    
 
 - [Scalar Value Types](#scalar-value-types)
 
@@ -27,9 +27,8 @@
 ### Message Lock
 Lock objects protects a list of objects from being deleted. The lifetime of a
 lock object is limited similar to regular objects in
-`__SYSTEM__EXPIRATION_EPOCH` (`__NEOFS__EXPIRATION_EPOCH` is deprecated)
+`__SYSTEM__EXPIRATION_EPOCH` (`__NEOFS__EXPIRATION_EPOCH` is deprecated) attribute. Lock object MUST have expiration epoch.
-attribute. Lock object MUST have expiration epoch. It is impossible to delete
+It is impossible to delete a lock object via ObjectService.Delete RPC call.
-a lock object via ObjectService.Delete RPC call.
 
 
 | Field | Type | Label | Description |
@@ -61,3 +60,4 @@ a lock object via ObjectService.Delete RPC call.
 | <a name="bool" /> bool |  | bool | boolean | boolean |
 | <a name="string" /> string | A string must always contain UTF-8 encoded or 7-bit ASCII text. | string | String | str/unicode |
 | <a name="bytes" /> bytes | May contain any arbitrary sequence of bytes. | string | ByteString | str |
+

proto-docs/netmap.md

@@ -4,38 +4,38 @@
 ## Table of Contents
 
 - [netmap/service.proto](#netmap/service.proto)
-  - Services
+ - Services
-      - [NetmapService](#neo.fs.v2.netmap.NetmapService)
+    - [NetmapService](#neo.fs.v2.netmap.NetmapService)
-
+    
   - Messages
-      - [LocalNodeInfoRequest](#neo.fs.v2.netmap.LocalNodeInfoRequest)
+    - [LocalNodeInfoRequest](#neo.fs.v2.netmap.LocalNodeInfoRequest)
-      - [LocalNodeInfoRequest.Body](#neo.fs.v2.netmap.LocalNodeInfoRequest.Body)
+    - [LocalNodeInfoRequest.Body](#neo.fs.v2.netmap.LocalNodeInfoRequest.Body)
-      - [LocalNodeInfoResponse](#neo.fs.v2.netmap.LocalNodeInfoResponse)
+    - [LocalNodeInfoResponse](#neo.fs.v2.netmap.LocalNodeInfoResponse)
-      - [LocalNodeInfoResponse.Body](#neo.fs.v2.netmap.LocalNodeInfoResponse.Body)
+    - [LocalNodeInfoResponse.Body](#neo.fs.v2.netmap.LocalNodeInfoResponse.Body)
-      - [NetmapSnapshotRequest](#neo.fs.v2.netmap.NetmapSnapshotRequest)
+    - [NetmapSnapshotRequest](#neo.fs.v2.netmap.NetmapSnapshotRequest)
-      - [NetmapSnapshotRequest.Body](#neo.fs.v2.netmap.NetmapSnapshotRequest.Body)
+    - [NetmapSnapshotRequest.Body](#neo.fs.v2.netmap.NetmapSnapshotRequest.Body)
-      - [NetmapSnapshotResponse](#neo.fs.v2.netmap.NetmapSnapshotResponse)
+    - [NetmapSnapshotResponse](#neo.fs.v2.netmap.NetmapSnapshotResponse)
-      - [NetmapSnapshotResponse.Body](#neo.fs.v2.netmap.NetmapSnapshotResponse.Body)
+    - [NetmapSnapshotResponse.Body](#neo.fs.v2.netmap.NetmapSnapshotResponse.Body)
-      - [NetworkInfoRequest](#neo.fs.v2.netmap.NetworkInfoRequest)
+    - [NetworkInfoRequest](#neo.fs.v2.netmap.NetworkInfoRequest)
-      - [NetworkInfoRequest.Body](#neo.fs.v2.netmap.NetworkInfoRequest.Body)
+    - [NetworkInfoRequest.Body](#neo.fs.v2.netmap.NetworkInfoRequest.Body)
-      - [NetworkInfoResponse](#neo.fs.v2.netmap.NetworkInfoResponse)
+    - [NetworkInfoResponse](#neo.fs.v2.netmap.NetworkInfoResponse)
-      - [NetworkInfoResponse.Body](#neo.fs.v2.netmap.NetworkInfoResponse.Body)
+    - [NetworkInfoResponse.Body](#neo.fs.v2.netmap.NetworkInfoResponse.Body)
-
+    
 
 - [netmap/types.proto](#netmap/types.proto)
 
   - Messages
-      - [Filter](#neo.fs.v2.netmap.Filter)
+    - [Filter](#neo.fs.v2.netmap.Filter)
-      - [Netmap](#neo.fs.v2.netmap.Netmap)
+    - [Netmap](#neo.fs.v2.netmap.Netmap)
-      - [NetworkConfig](#neo.fs.v2.netmap.NetworkConfig)
+    - [NetworkConfig](#neo.fs.v2.netmap.NetworkConfig)
-      - [NetworkConfig.Parameter](#neo.fs.v2.netmap.NetworkConfig.Parameter)
+    - [NetworkConfig.Parameter](#neo.fs.v2.netmap.NetworkConfig.Parameter)
-      - [NetworkInfo](#neo.fs.v2.netmap.NetworkInfo)
+    - [NetworkInfo](#neo.fs.v2.netmap.NetworkInfo)
-      - [NodeInfo](#neo.fs.v2.netmap.NodeInfo)
+    - [NodeInfo](#neo.fs.v2.netmap.NodeInfo)
-      - [NodeInfo.Attribute](#neo.fs.v2.netmap.NodeInfo.Attribute)
+    - [NodeInfo.Attribute](#neo.fs.v2.netmap.NodeInfo.Attribute)
-      - [PlacementPolicy](#neo.fs.v2.netmap.PlacementPolicy)
+    - [PlacementPolicy](#neo.fs.v2.netmap.PlacementPolicy)
-      - [Replica](#neo.fs.v2.netmap.Replica)
+    - [Replica](#neo.fs.v2.netmap.Replica)
-      - [Selector](#neo.fs.v2.netmap.Selector)
+    - [Selector](#neo.fs.v2.netmap.Selector)
-
+    
 
 - [Scalar Value Types](#scalar-value-types)
 
@@ -52,10 +52,10 @@
 <a name="neo.fs.v2.netmap.NetmapService"></a>
 
 ### Service "neo.fs.v2.netmap.NetmapService"
-`NetmapService` provides methods to work with `Network Map` and the
+`NetmapService` provides methods to work with `Network Map` and the information
-information required to build it. The resulting `Network Map` is stored in
+required to build it. The resulting `Network Map` is stored in sidechain
-sidechain `Netmap` smart contract, while related information can be obtained
+`Netmap` smart contract, while related information can be obtained from other
-from other FrostFS nodes.
+NeoFS nodes.
 
 ```
 rpc LocalNodeInfo(LocalNodeInfoRequest) returns (LocalNodeInfoResponse);
@@ -66,12 +66,11 @@ rpc NetmapSnapshot(NetmapSnapshotRequest) returns (NetmapSnapshotResponse);
 
 #### Method LocalNodeInfo
 
-Get NodeInfo structure from the particular node directly.
+Get NodeInfo structure from the particular node directly. 
-Node information can be taken from `Netmap` smart contract. In some cases,
+Node information can be taken from `Netmap` smart contract. In some cases, though,
-though, one may want to get recent information directly or to talk to the
+one may want to get recent information directly or to talk to the node not yet
-node not yet present in the `Network Map` to find out what API version can
+present in the `Network Map` to find out what API version can be used for
-be used for further communication. This can be also used to check if a node
+further communication. This can be also used to check if a node is up and running.
-is up and running.
 
 Statuses:
 - **OK** (0, SECTION_SUCCESS):
@@ -83,7 +82,7 @@ information about the server has been successfully read;
 | LocalNodeInfo | [LocalNodeInfoRequest](#neo.fs.v2.netmap.LocalNodeInfoRequest) | [LocalNodeInfoResponse](#neo.fs.v2.netmap.LocalNodeInfoResponse) |
 #### Method NetworkInfo
 
-Read recent information about the FrostFS network.
+Read recent information about the NeoFS network.
 
 Statuses:
 - **OK** (0, SECTION_SUCCESS):
@@ -95,7 +94,7 @@ information about the current network state has been successfully read;
 | NetworkInfo | [NetworkInfoRequest](#neo.fs.v2.netmap.NetworkInfoRequest) | [NetworkInfoResponse](#neo.fs.v2.netmap.NetworkInfoResponse) |
 #### Method NetmapSnapshot
 
-Returns network map snapshot of the current FrostFS epoch.
+Returns network map snapshot of the current NeoFS epoch.
 
 Statuses:
 - **OK** (0, SECTION_SUCCESS):
@@ -149,7 +148,7 @@ Local Node Info, including API Version in use.
 
 | Field | Type | Label | Description |
 | ----- | ---- | ----- | ----------- |
-| version | [neo.fs.v2.refs.Version](#neo.fs.v2.refs.Version) |  | Latest FrostFS API version in use |
+| version | [neo.fs.v2.refs.Version](#neo.fs.v2.refs.Version) |  | Latest NeoFS API version in use |
 | node_info | [NodeInfo](#neo.fs.v2.netmap.NodeInfo) |  | NodeInfo structure with recent information from node itself |
 
 
@@ -259,8 +258,8 @@ Information about the network.
 <a name="neo.fs.v2.netmap.Filter"></a>
 
 ### Message Filter
-This filter will return the subset of nodes from `NetworkMap` or another
+This filter will return the subset of nodes from `NetworkMap` or another filter's
-filter's results that will satisfy filter's conditions.
+results that will satisfy filter's conditions.
 
 
 | Field | Type | Label | Description |
@@ -287,7 +286,7 @@ Network map structure
 <a name="neo.fs.v2.netmap.NetworkConfig"></a>
 
 ### Message NetworkConfig
-FrostFS network configuration
+NeoFS network configuration
 
 
 | Field | Type | Label | Description |
@@ -314,8 +313,15 @@ System parameters:
 - **ContainerFee** \
   Fee paid for container creation by the container owner.
   Value: little-endian integer. Default: 0.
+- **EigenTrustAlpha** \
+  Alpha parameter of EigenTrust algorithm used in the Reputation system.
+  Value: decimal floating-point number in UTF-8 string representation.
+  Default: 0.
+- **EigenTrustIterations** \
+  Number of EigenTrust algorithm iterations to pass in the Reputation system.
+  Value: little-endian integer. Default: 0.
 - **EpochDuration** \
-  FrostFS epoch duration measured in Sidechain blocks.
+  NeoFS epoch duration measured in Sidechain blocks.
   Value: little-endian integer. Default: 0.
 - **HomomorphicHashingDisabled** \
   Flag of disabling the homomorphic hashing of objects' payload.
@@ -327,48 +333,11 @@ System parameters:
   Flag allowing setting the MAINTENANCE state to storage nodes.
   Value: true if any byte != 0. Default: false.
 - **MaxObjectSize** \
-  Maximum size of physically stored FrostFS object measured in bytes.
+  Maximum size of physically stored NeoFS object measured in bytes.
   Value: little-endian integer. Default: 0.
-
-  This value refers to the maximum size of a **physically** stored object
-  in FrostFS. However, from a user's perspective, the **logical** size of a
-  stored object can be significantly larger. The relationship between the
-  physical and logical object sizes is governed by the following formula
-
-  ```math
-  \mathrm{Stored\ Object\ Size} \le
-  \frac{
-    \left(\mathrm{Max\ Object\ Size}\right)^2
-  }{
-    \mathrm{Object\ ID\ Size}
-  }
-  ```
-
-  This arises from the fact that a tombstone, also being an object, stores
-  the IDs of inhumed objects and cannot be divided into smaller objects,
-  thus having an upper limit for its size.
-
-  For example, if:
-  * Max Object Size Size = 64 MiB;
-  * Object ID Size = 32 B;
-
-  then:
-  ```math
-    \mathrm{Stored\ Object\ Size} \le
-    \frac{\left(64\ \mathrm{MiB}\right)^2}{32\ \mathrm{B}} =
-    \frac{2^{52}}{2^5}\ \mathrm{B} =
-    2^{47}\ \mathrm{B} =
-    128\ \mathrm{TiB}
-  ```
 - **WithdrawFee** \
   Fee paid for withdrawal of funds paid by the account owner.
   Value: little-endian integer. Default: 0.
-- **MaxECDataCount** \
-  Maximum number of data shards for EC placement policy.
-  Value: little-endian integer. Default: 0.
-- **MaxECParityCount** \
-  Maximum number of parity shards for EC placement policy.
-  Value: little-endian integer. Default: 0.
 
 
 | Field | Type | Label | Description |
@@ -380,49 +349,49 @@ System parameters:
 <a name="neo.fs.v2.netmap.NetworkInfo"></a>
 
 ### Message NetworkInfo
-Information about FrostFS network
+Information about NeoFS network
 
 
 | Field | Type | Label | Description |
 | ----- | ---- | ----- | ----------- |
-| current_epoch | [uint64](#uint64) |  | Number of the current epoch in the FrostFS network |
+| current_epoch | [uint64](#uint64) |  | Number of the current epoch in the NeoFS network |
-| magic_number | [uint64](#uint64) |  | Magic number of the sidechain of the FrostFS network |
+| magic_number | [uint64](#uint64) |  | Magic number of the sidechain of the NeoFS network |
-| ms_per_block | [int64](#int64) |  | MillisecondsPerBlock network parameter of the sidechain of the FrostFS network |
+| ms_per_block | [int64](#int64) |  | MillisecondsPerBlock network parameter of the sidechain of the NeoFS network |
-| network_config | [NetworkConfig](#neo.fs.v2.netmap.NetworkConfig) |  | FrostFS network configuration |
+| network_config | [NetworkConfig](#neo.fs.v2.netmap.NetworkConfig) |  | NeoFS network configuration |
 
 
 <a name="neo.fs.v2.netmap.NodeInfo"></a>
 
 ### Message NodeInfo
-FrostFS node description
+NeoFS node description
 
 
 | Field | Type | Label | Description |
 | ----- | ---- | ----- | ----------- |
-| public_key | [bytes](#bytes) |  | Public key of the FrostFS node in a binary format |
+| public_key | [bytes](#bytes) |  | Public key of the NeoFS node in a binary format |
 | addresses | [string](#string) | repeated | Ways to connect to a node |
-| attributes | [NodeInfo.Attribute](#neo.fs.v2.netmap.NodeInfo.Attribute) | repeated | Carries list of the FrostFS node attributes in a key-value form. Key name must be a node-unique valid UTF-8 string. Value can't be empty. NodeInfo structures with duplicated attribute names or attributes with empty values will be considered invalid. |
+| attributes | [NodeInfo.Attribute](#neo.fs.v2.netmap.NodeInfo.Attribute) | repeated | Carries list of the NeoFS node attributes in a key-value form. Key name must be a node-unique valid UTF-8 string. Value can't be empty. NodeInfo structures with duplicated attribute names or attributes with empty values will be considered invalid. |
-| state | [NodeInfo.State](#neo.fs.v2.netmap.NodeInfo.State) |  | Carries state of the FrostFS node |
+| state | [NodeInfo.State](#neo.fs.v2.netmap.NodeInfo.State) |  | Carries state of the NeoFS node |
 
 
 <a name="neo.fs.v2.netmap.NodeInfo.Attribute"></a>
 
 ### Message NodeInfo.Attribute
-Administrator-defined Attributes of the FrostFS Storage Node.
+Administrator-defined Attributes of the NeoFS Storage Node.
 
 `Attribute` is a Key-Value metadata pair. Key name must be a valid UTF-8
 string. Value can't be empty.
 
 Attributes can be constructed into a chain of attributes: any attribute can
-have a parent attribute and a child attribute (except the first and the
+have a parent attribute and a child attribute (except the first and the last
-last one). A string representation of the chain of attributes in FrostFS
+one). A string representation of the chain of attributes in NeoFS Storage
-Storage Node configuration uses ":" and "/" symbols, e.g.:
+Node configuration uses ":" and "/" symbols, e.g.:
 
-       `FrostFS_NODE_ATTRIBUTE_1=key1:val1/key2:val2`
+       `NEOFS_NODE_ATTRIBUTE_1=key1:val1/key2:val2`
 
-Therefore the string attribute representation in the Node configuration
+Therefore the string attribute representation in the Node configuration must
-must use "\:", "\/" and "\\" escaped symbols if any of them appears in an
+use "\:", "\/" and "\\" escaped symbols if any of them appears in an attribute's
-attribute's key or value.
+key or value.
 
 Node's attributes are mostly used during Storage Policy evaluation to
 calculate object's placement and find a set of nodes satisfying policy
@@ -437,6 +406,14 @@ explicitly set:
   attributes it's a string presenting floating point number with comma or
   point delimiter for decimal part. In the Network Map it will be saved as
   64-bit unsigned integer representing number of minimal token fractions.
+* [ __SYSTEM__SUBNET_%s ] \
+  (`__NEOFS__SUBNET_%s` is deprecated) \
+  `True` or `False`. Defines if the node is included in the `%s` subnetwork
+  or not. `%s` must be an existing subnetwork's ID (non-negative integer number).
+  A node can be included in more than one subnetwork and, therefore, can contain
+  more than one subnet attribute. A missing attribute is equivalent to the
+  presence of the attribute with `False` value (except default zero subnetwork
+  (with `%s` == 0) for which missing attribute means inclusion in that network).
 * UN-LOCODE \
   Node's geographic location in
   [UN/LOCODE](https://www.unece.org/cefact/codesfortrade/codes_index.html)
@@ -465,8 +442,8 @@ explicitly set:
   [ISO 3166-2](https://en.wikipedia.org/wiki/ISO_3166-2). Calculated
   automatically from `UN-LOCODE` attribute.
 * Continent \
-  Node's continent name according to the [Seven-Continent
+  Node's continent name according to the [Seven-Continent model]
-  model](https://en.wikipedia.org/wiki/Continent#Number). Calculated
+  (https://en.wikipedia.org/wiki/Continent#Number). Calculated
   automatically from `UN-LOCODE` attribute.
 * ExternalAddr
   Node's preferred way for communications with external clients.
@@ -474,7 +451,7 @@ explicitly set:
   Must contain a comma-separated list of multi-addresses.
 
 For detailed description of each well-known attribute please see the
-corresponding section in FrostFS Technical Specification.
+corresponding section in NeoFS Technical Specification.
 
 
 | Field | Type | Label | Description |
@@ -495,10 +472,10 @@ storage policy definition languages.
 | Field | Type | Label | Description |
 | ----- | ---- | ----- | ----------- |
 | replicas | [Replica](#neo.fs.v2.netmap.Replica) | repeated | Rules to set number of object replicas and place each one into a named bucket |
-| container_backup_factor | [uint32](#uint32) |  | Container backup factor controls how deep FrostFS will search for nodes alternatives to include into container's nodes subset |
+| container_backup_factor | [uint32](#uint32) |  | Container backup factor controls how deep NeoFS will search for nodes alternatives to include into container's nodes subset |
 | selectors | [Selector](#neo.fs.v2.netmap.Selector) | repeated | Set of Selectors to form the container's nodes subset |
 | filters | [Filter](#neo.fs.v2.netmap.Filter) | repeated | List of named filters to reference in selectors |
-| unique | [bool](#bool) |  | Unique flag defines non-overlapping application for replicas |
+| subnet_id | [neo.fs.v2.refs.SubnetID](#neo.fs.v2.refs.SubnetID) |  | Subnetwork ID to select nodes from. Zero subnet (default) represents all of the nodes which didn't explicitly opt out of membership. |
 
 
 <a name="neo.fs.v2.netmap.Replica"></a>
@@ -513,8 +490,6 @@ default.
 | ----- | ---- | ----- | ----------- |
 | count | [uint32](#uint32) |  | How many object replicas to put |
 | selector | [string](#string) |  | Named selector bucket to put replicas |
-| ec_data_count | [uint32](#uint32) |  | Data shards count |
-| ec_parity_count | [uint32](#uint32) |  | Parity shards count |
 
 
 <a name="neo.fs.v2.netmap.Selector"></a>
@@ -553,7 +528,7 @@ hash distance.
 <a name="neo.fs.v2.netmap.NodeInfo.State"></a>
 
 ### NodeInfo.State
-Represents the enumeration of various states of the FrostFS node.
+Represents the enumeration of various states of the NeoFS node.
 
 | Name | Number | Description |
 | ---- | ------ | ----------- |
@@ -580,8 +555,6 @@ Operations on filters
 | LE | 6 | Less or equal |
 | OR | 7 | Logical OR |
 | AND | 8 | Logical AND |
-| NOT | 9 | Logical negation |
-| LIKE | 10 | Matches pattern |
 
 
  <!-- end enums -->
@@ -607,3 +580,4 @@ Operations on filters
 | <a name="bool" /> bool |  | bool | boolean | boolean |
 | <a name="string" /> string | A string must always contain UTF-8 encoded or 7-bit ASCII text. | string | String | str/unicode |
 | <a name="bytes" /> bytes | May contain any arbitrary sequence of bytes. | string | ByteString | str |
+

proto-docs/object.md

@@ -4,67 +4,55 @@
 ## Table of Contents
 
 - [object/service.proto](#object/service.proto)
-  - Services
+ - Services
-      - [ObjectService](#neo.fs.v2.object.ObjectService)
+    - [ObjectService](#neo.fs.v2.object.ObjectService)
-
+    
   - Messages
-      - [DeleteRequest](#neo.fs.v2.object.DeleteRequest)
+    - [DeleteRequest](#neo.fs.v2.object.DeleteRequest)
-      - [DeleteRequest.Body](#neo.fs.v2.object.DeleteRequest.Body)
+    - [DeleteRequest.Body](#neo.fs.v2.object.DeleteRequest.Body)
-      - [DeleteResponse](#neo.fs.v2.object.DeleteResponse)
+    - [DeleteResponse](#neo.fs.v2.object.DeleteResponse)
-      - [DeleteResponse.Body](#neo.fs.v2.object.DeleteResponse.Body)
+    - [DeleteResponse.Body](#neo.fs.v2.object.DeleteResponse.Body)
-      - [GetRangeHashRequest](#neo.fs.v2.object.GetRangeHashRequest)
+    - [GetRangeHashRequest](#neo.fs.v2.object.GetRangeHashRequest)
-      - [GetRangeHashRequest.Body](#neo.fs.v2.object.GetRangeHashRequest.Body)
+    - [GetRangeHashRequest.Body](#neo.fs.v2.object.GetRangeHashRequest.Body)
-      - [GetRangeHashResponse](#neo.fs.v2.object.GetRangeHashResponse)
+    - [GetRangeHashResponse](#neo.fs.v2.object.GetRangeHashResponse)
-      - [GetRangeHashResponse.Body](#neo.fs.v2.object.GetRangeHashResponse.Body)
+    - [GetRangeHashResponse.Body](#neo.fs.v2.object.GetRangeHashResponse.Body)
-      - [GetRangeRequest](#neo.fs.v2.object.GetRangeRequest)
+    - [GetRangeRequest](#neo.fs.v2.object.GetRangeRequest)
-      - [GetRangeRequest.Body](#neo.fs.v2.object.GetRangeRequest.Body)
+    - [GetRangeRequest.Body](#neo.fs.v2.object.GetRangeRequest.Body)
-      - [GetRangeResponse](#neo.fs.v2.object.GetRangeResponse)
+    - [GetRangeResponse](#neo.fs.v2.object.GetRangeResponse)
-      - [GetRangeResponse.Body](#neo.fs.v2.object.GetRangeResponse.Body)
+    - [GetRangeResponse.Body](#neo.fs.v2.object.GetRangeResponse.Body)
-      - [GetRequest](#neo.fs.v2.object.GetRequest)
+    - [GetRequest](#neo.fs.v2.object.GetRequest)
-      - [GetRequest.Body](#neo.fs.v2.object.GetRequest.Body)
+    - [GetRequest.Body](#neo.fs.v2.object.GetRequest.Body)
-      - [GetResponse](#neo.fs.v2.object.GetResponse)
+    - [GetResponse](#neo.fs.v2.object.GetResponse)
-      - [GetResponse.Body](#neo.fs.v2.object.GetResponse.Body)
+    - [GetResponse.Body](#neo.fs.v2.object.GetResponse.Body)
-      - [GetResponse.Body.Init](#neo.fs.v2.object.GetResponse.Body.Init)
+    - [GetResponse.Body.Init](#neo.fs.v2.object.GetResponse.Body.Init)
-      - [HeadRequest](#neo.fs.v2.object.HeadRequest)
+    - [HeadRequest](#neo.fs.v2.object.HeadRequest)
-      - [HeadRequest.Body](#neo.fs.v2.object.HeadRequest.Body)
+    - [HeadRequest.Body](#neo.fs.v2.object.HeadRequest.Body)
-      - [HeadResponse](#neo.fs.v2.object.HeadResponse)
+    - [HeadResponse](#neo.fs.v2.object.HeadResponse)
-      - [HeadResponse.Body](#neo.fs.v2.object.HeadResponse.Body)
+    - [HeadResponse.Body](#neo.fs.v2.object.HeadResponse.Body)
-      - [HeaderWithSignature](#neo.fs.v2.object.HeaderWithSignature)
+    - [HeaderWithSignature](#neo.fs.v2.object.HeaderWithSignature)
-      - [PatchRequest](#neo.fs.v2.object.PatchRequest)
+    - [PutRequest](#neo.fs.v2.object.PutRequest)
-      - [PatchRequest.Body](#neo.fs.v2.object.PatchRequest.Body)
+    - [PutRequest.Body](#neo.fs.v2.object.PutRequest.Body)
-      - [PatchRequest.Body.Patch](#neo.fs.v2.object.PatchRequest.Body.Patch)
+    - [PutRequest.Body.Init](#neo.fs.v2.object.PutRequest.Body.Init)
-      - [PatchResponse](#neo.fs.v2.object.PatchResponse)
+    - [PutResponse](#neo.fs.v2.object.PutResponse)
-      - [PatchResponse.Body](#neo.fs.v2.object.PatchResponse.Body)
+    - [PutResponse.Body](#neo.fs.v2.object.PutResponse.Body)
-      - [PutRequest](#neo.fs.v2.object.PutRequest)
+    - [Range](#neo.fs.v2.object.Range)
-      - [PutRequest.Body](#neo.fs.v2.object.PutRequest.Body)
+    - [SearchRequest](#neo.fs.v2.object.SearchRequest)
-      - [PutRequest.Body.Init](#neo.fs.v2.object.PutRequest.Body.Init)
+    - [SearchRequest.Body](#neo.fs.v2.object.SearchRequest.Body)
-      - [PutResponse](#neo.fs.v2.object.PutResponse)
+    - [SearchRequest.Body.Filter](#neo.fs.v2.object.SearchRequest.Body.Filter)
-      - [PutResponse.Body](#neo.fs.v2.object.PutResponse.Body)
+    - [SearchResponse](#neo.fs.v2.object.SearchResponse)
-      - [PutSingleRequest](#neo.fs.v2.object.PutSingleRequest)
+    - [SearchResponse.Body](#neo.fs.v2.object.SearchResponse.Body)
-      - [PutSingleRequest.Body](#neo.fs.v2.object.PutSingleRequest.Body)
+    
-      - [PutSingleResponse](#neo.fs.v2.object.PutSingleResponse)
-      - [PutSingleResponse.Body](#neo.fs.v2.object.PutSingleResponse.Body)
-      - [Range](#neo.fs.v2.object.Range)
-      - [SearchRequest](#neo.fs.v2.object.SearchRequest)
-      - [SearchRequest.Body](#neo.fs.v2.object.SearchRequest.Body)
-      - [SearchRequest.Body.Filter](#neo.fs.v2.object.SearchRequest.Body.Filter)
-      - [SearchResponse](#neo.fs.v2.object.SearchResponse)
-      - [SearchResponse.Body](#neo.fs.v2.object.SearchResponse.Body)
-
 
 - [object/types.proto](#object/types.proto)
 
   - Messages
-      - [ECInfo](#neo.fs.v2.object.ECInfo)
+    - [Header](#neo.fs.v2.object.Header)
-      - [ECInfo.Chunk](#neo.fs.v2.object.ECInfo.Chunk)
+    - [Header.Attribute](#neo.fs.v2.object.Header.Attribute)
-      - [Header](#neo.fs.v2.object.Header)
+    - [Header.Split](#neo.fs.v2.object.Header.Split)
-      - [Header.Attribute](#neo.fs.v2.object.Header.Attribute)
+    - [Object](#neo.fs.v2.object.Object)
-      - [Header.EC](#neo.fs.v2.object.Header.EC)
+    - [ShortHeader](#neo.fs.v2.object.ShortHeader)
-      - [Header.Split](#neo.fs.v2.object.Header.Split)
+    - [SplitInfo](#neo.fs.v2.object.SplitInfo)
-      - [Object](#neo.fs.v2.object.Object)
+    
-      - [ShortHeader](#neo.fs.v2.object.ShortHeader)
-      - [SplitInfo](#neo.fs.v2.object.SplitInfo)
-
 
 - [Scalar Value Types](#scalar-value-types)
 
@@ -92,19 +80,17 @@ rpc Head(HeadRequest) returns (HeadResponse);
 rpc Search(SearchRequest) returns (stream SearchResponse);
 rpc GetRange(GetRangeRequest) returns (stream GetRangeResponse);
 rpc GetRangeHash(GetRangeHashRequest) returns (GetRangeHashResponse);
-rpc PutSingle(PutSingleRequest) returns (PutSingleResponse);
-rpc Patch(stream PatchRequest) returns (PatchResponse);
 
 ```
 
 #### Method Get
 
 Receive full object structure, including Headers and payload. Response uses
-gRPC stream. First response message carries the object with the requested
+gRPC stream. First response message carries the object with the requested address.
-address. Chunk messages are parts of the object's payload if it is needed.
+Chunk messages are parts of the object's payload if it is needed. All
-All messages, except the first one, carry payload chunks. The requested
+messages, except the first one, carry payload chunks. The requested object can
-object can be restored by concatenation of object message payload and all
+be restored by concatenation of object message payload and all chunks
-chunks keeping the receiving order.
+keeping the receiving order.
 
 Extended headers can change `Get` behaviour:
 * [ __SYSTEM__NETMAP_EPOCH ] \
@@ -113,10 +99,9 @@ Extended headers can change `Get` behaviour:
   calculation.
 * [ __SYSTEM__NETMAP_LOOKUP_DEPTH ] \
   (`__NEOFS__NETMAP_LOOKUP_DEPTH` is deprecated) \
-  Will try older versions (starting from `__SYSTEM__NETMAP_EPOCH`
+  Will try older versions (starting from `__SYSTEM__NETMAP_EPOCH` (`__NEOFS__NETMAP_EPOCH` is deprecated) if specified or
-  (`__NEOFS__NETMAP_EPOCH` is deprecated) if specified or the latest one
+  the latest one otherwise) of Network Map to find an object until the depth
-  otherwise) of Network Map to find an object until the depth limit is
+  limit is reached.
-  reached.
 
 Please refer to detailed `XHeader` description.
 
@@ -132,8 +117,6 @@ Statuses:
   the requested object has been marked as deleted;
 - **CONTAINER_NOT_FOUND** (3072, SECTION_CONTAINER): \
   object container not found;
-- **CONTAINER_ACCESS_DENIED** (3074, SECTION_CONTAINER): \
-  access to container is denied;
 - **TOKEN_EXPIRED** (4097, SECTION_SESSION): \
   provided session token has expired.
 
@@ -164,18 +147,15 @@ Statuses:
 - **ACCESS_DENIED** (2048, SECTION_OBJECT): \
   write access to the container is denied;
 - **LOCKED** (2050, SECTION_OBJECT): \
-  placement of an object of type TOMBSTONE that includes at least one
+  placement of an object of type TOMBSTONE that includes at least one locked
-  locked object is prohibited;
+  object is prohibited;
 - **LOCK_NON_REGULAR_OBJECT** (2051, SECTION_OBJECT): \
   placement of an object of type LOCK that includes at least one object of
   type other than REGULAR is prohibited;
 - **CONTAINER_NOT_FOUND** (3072, SECTION_CONTAINER): \
   object storage container not found;
-- **CONTAINER_ACCESS_DENIED** (3074, SECTION_CONTAINER): \
-  access to container is denied;
 - **TOKEN_NOT_FOUND** (4096, SECTION_SESSION): \
-  (for trusted object preparation) session private key does not exist or
+  (for trusted object preparation) session private key does not exist or has
-  has
 been deleted;
 - **TOKEN_EXPIRED** (4097, SECTION_SESSION): \
   provided session token has expired.
@@ -202,15 +182,10 @@ Statuses:
 - Common failures (SECTION_FAILURE_COMMON);
 - **ACCESS_DENIED** (2048, SECTION_OBJECT): \
   delete access to the object is denied;
-- **OBJECT_NOT_FOUND** (2049, SECTION_OBJECT): \
-  the object could not be deleted because it has not been \
-  found within the container;
 - **LOCKED** (2050, SECTION_OBJECT): \
   deleting a locked object is prohibited;
 - **CONTAINER_NOT_FOUND** (3072, SECTION_CONTAINER): \
   object container not found;
-- **CONTAINER_ACCESS_DENIED** (3074, SECTION_CONTAINER): \
-  access to container is denied;
 - **TOKEN_EXPIRED** (4097, SECTION_SESSION): \
   provided session token has expired.
 
@@ -243,8 +218,6 @@ Statuses:
   the requested object has been marked as deleted;
 - **CONTAINER_NOT_FOUND** (3072, SECTION_CONTAINER): \
   object container not found;
-- **CONTAINER_ACCESS_DENIED** (3074, SECTION_CONTAINER): \
-  access to container is denied;
 - **TOKEN_EXPIRED** (4097, SECTION_SESSION): \
   provided session token has expired.
 
@@ -254,7 +227,7 @@ Statuses:
 #### Method Search
 
 Search objects in container. Search query allows to match by Object
-Header's filed values. Please see the corresponding FrostFS Technical
+Header's filed values. Please see the corresponding NeoFS Technical
 Specification section for more details.
 
 Extended headers can change `Search` behaviour:
@@ -273,8 +246,6 @@ Statuses:
   access to operation SEARCH of the object is denied;
 - **CONTAINER_NOT_FOUND** (3072, SECTION_CONTAINER): \
   search container not found;
-- **CONTAINER_ACCESS_DENIED** (3074, SECTION_CONTAINER): \
-  access to container is denied;
 - **TOKEN_EXPIRED** (4097, SECTION_SESSION): \
   provided session token has expired.
 
@@ -285,8 +256,8 @@ Statuses:
 
 Get byte range of data payload. Range is set as an (offset, length) tuple.
 Like in `Get` method, the response uses gRPC stream. Requested range can be
-restored by concatenation of all received payload chunks keeping the
+restored by concatenation of all received payload chunks keeping the receiving
-receiving order.
+order.
 
 Extended headers can change `GetRange` behaviour:
 * [ __SYSTEM__NETMAP_EPOCH ] \
@@ -314,8 +285,6 @@ Statuses:
   the requested range is out of bounds;
 - **CONTAINER_NOT_FOUND** (3072, SECTION_CONTAINER): \
   object container not found;
-- **CONTAINER_ACCESS_DENIED** (3074, SECTION_CONTAINER): \
-  access to container is denied;
 - **TOKEN_EXPIRED** (4097, SECTION_SESSION): \
   provided session token has expired.
 
@@ -353,107 +322,12 @@ Statuses:
   the requested range is out of bounds;
 - **CONTAINER_NOT_FOUND** (3072, SECTION_CONTAINER): \
   object container not found;
-- **CONTAINER_ACCESS_DENIED** (3074, SECTION_CONTAINER): \
-  access to container is denied;
 - **TOKEN_EXPIRED** (4097, SECTION_SESSION): \
   provided session token has expired.
 
 | Name | Input | Output |
 | ---- | ----- | ------ |
 | GetRangeHash | [GetRangeHashRequest](#neo.fs.v2.object.GetRangeHashRequest) | [GetRangeHashResponse](#neo.fs.v2.object.GetRangeHashResponse) |
-#### Method PutSingle
-
-Put the prepared object into container.
-`ContainerID`, `ObjectID`, `OwnerID`, `PayloadHash` and `PayloadLength` of
-an object MUST be set.
-
-Extended headers can change `Put` behaviour:
-* [ __SYSTEM__NETMAP_EPOCH \
-  (`__NEOFS__NETMAP_EPOCH` is deprecated) \
-  Will use the requested version of Network Map for object placement
-  calculation.
-
-Please refer to detailed `XHeader` description.
-
-Statuses:
-- **OK** (0, SECTION_SUCCESS): \
-  object has been successfully saved in the container;
-- Common failures (SECTION_FAILURE_COMMON);
-- **ACCESS_DENIED** (2048, SECTION_OBJECT): \
-  write access to the container is denied;
-- **LOCKED** (2050, SECTION_OBJECT): \
-  placement of an object of type TOMBSTONE that includes at least one
-  locked object is prohibited;
-- **LOCK_NON_REGULAR_OBJECT** (2051, SECTION_OBJECT): \
-  placement of an object of type LOCK that includes at least one object of
-  type other than REGULAR is prohibited;
-- **CONTAINER_NOT_FOUND** (3072, SECTION_CONTAINER): \
-  object storage container not found;
-- **CONTAINER_ACCESS_DENIED** (3074, SECTION_CONTAINER): \
-  access to container is denied;
-- **TOKEN_NOT_FOUND** (4096, SECTION_SESSION): \
-  (for trusted object preparation) session private key does not exist or
-  has
-been deleted;
-- **TOKEN_EXPIRED** (4097, SECTION_SESSION): \
-  provided session token has expired.
-
-| Name | Input | Output |
-| ---- | ----- | ------ |
-| PutSingle | [PutSingleRequest](#neo.fs.v2.object.PutSingleRequest) | [PutSingleResponse](#neo.fs.v2.object.PutSingleResponse) |
-#### Method Patch
-
-Patch the object. Request uses gRPC stream. First message must set
-the address of the object that is going to get patched. If the object's
-attributes are patched, then these attrubutes must be set only within the
-first stream message.
-
-If the patch request is performed by NOT the object's owner but if the
-actor has the permission to perform the patch, then `OwnerID` of the object
-is changed. In this case the object's owner loses the object's ownership
-after the patch request is successfully done.
-
-As objects are content-addressable the patching causes new object ID
-generation for the patched object. This object id is set witihn
-`PatchResponse`. But the object id may remain unchanged in such cases:
-1. The chunk of the applying patch contains the same value as the object's
-payload within the same range;
-2. The patch that reverts the changes applied by preceding patch;
-3. The application of the same patches for the object a few times.
-
-Extended headers can change `Patch` behaviour:
-* [ __SYSTEM__NETMAP_EPOCH \
-  (`__NEOFS__NETMAP_EPOCH` is deprecated) \
-  Will use the requsted version of Network Map for object placement
-  calculation.
-
-Please refer to detailed `XHeader` description.
-
-Statuses:
-- **OK** (0, SECTION_SUCCESS): \
-  object has been successfully patched and saved in the container;
-- Common failures (SECTION_FAILURE_COMMON);
-- **ACCESS_DENIED** (2048, SECTION_OBJECT): \
-  write access to the container is denied;
-- **OBJECT_NOT_FOUND** (2049, SECTION_OBJECT): \
-  object not found in container;
-- **OBJECT_ALREADY_REMOVED** (2052, SECTION_OBJECT): \
-  the requested object has been marked as deleted.
-- **OUT_OF_RANGE** (2053, SECTION_OBJECT): \
-  the requested range is out of bounds;
-- **CONTAINER_NOT_FOUND** (3072, SECTION_CONTAINER): \
-  object storage container not found;
-- **CONTAINER_ACCESS_DENIED** (3074, SECTION_CONTAINER): \
-  access to container is denied;
-- **TOKEN_NOT_FOUND** (4096, SECTION_SESSION): \
-  (for trusted object preparation) session private key does not exist or
-  has been deleted;
-- **TOKEN_EXPIRED** (4097, SECTION_SESSION): \
-  provided session token has expired.
-
-| Name | Input | Output |
-| ---- | ----- | ------ |
-| Patch | [PatchRequest](#neo.fs.v2.object.PatchRequest) | [PatchResponse](#neo.fs.v2.object.PatchResponse) |
  <!-- end services -->
 
 
@@ -610,7 +484,6 @@ chunks.
 | ----- | ---- | ----- | ----------- |
 | chunk | [bytes](#bytes) |  | Chunked object payload's range. |
 | split_info | [SplitInfo](#neo.fs.v2.object.SplitInfo) |  | Meta information of split hierarchy. |
-| ec_info | [ECInfo](#neo.fs.v2.object.ECInfo) |  | Meta information for EC object assembly. |
 
 
 <a name="neo.fs.v2.object.GetRequest"></a>
@@ -662,7 +535,6 @@ GET Object Response body
 | init | [GetResponse.Body.Init](#neo.fs.v2.object.GetResponse.Body.Init) |  | Initial part of the object stream |
 | chunk | [bytes](#bytes) |  | Chunked object payload |
 | split_info | [SplitInfo](#neo.fs.v2.object.SplitInfo) |  | Meta information of split hierarchy for object assembly. |
-| ec_info | [ECInfo](#neo.fs.v2.object.ECInfo) |  | Meta information for EC object assembly. |
 
 
 <a name="neo.fs.v2.object.GetResponse.Body.Init"></a>
@@ -729,7 +601,6 @@ Object HEAD response body
 | header | [HeaderWithSignature](#neo.fs.v2.object.HeaderWithSignature) |  | Full object's `Header` with `ObjectID` signature |
 | short_header | [ShortHeader](#neo.fs.v2.object.ShortHeader) |  | Short object header |
 | split_info | [SplitInfo](#neo.fs.v2.object.SplitInfo) |  | Meta information of split hierarchy. |
-| ec_info | [ECInfo](#neo.fs.v2.object.ECInfo) |  | Meta information for EC object assembly. |
 
 
 <a name="neo.fs.v2.object.HeaderWithSignature"></a>
@@ -750,71 +621,6 @@ following steps:
 | signature | [neo.fs.v2.refs.Signature](#neo.fs.v2.refs.Signature) |  | Signed `ObjectID` to verify full header's authenticity |
 
 
-<a name="neo.fs.v2.object.PatchRequest"></a>
-
-### Message PatchRequest
-Object PATCH request
-
-
-| Field | Type | Label | Description |
-| ----- | ---- | ----- | ----------- |
-| body | [PatchRequest.Body](#neo.fs.v2.object.PatchRequest.Body) |  | Body for patch request message. |
-| meta_header | [neo.fs.v2.session.RequestMetaHeader](#neo.fs.v2.session.RequestMetaHeader) |  | Carries request meta information. Header data is used only to regulate message transport and does not affect request execution. |
-| verify_header | [neo.fs.v2.session.RequestVerificationHeader](#neo.fs.v2.session.RequestVerificationHeader) |  | Carries request verification information. This header is used to authenticate the nodes of the message route and check the correctness of transmission. |
-
-
-<a name="neo.fs.v2.object.PatchRequest.Body"></a>
-
-### Message PatchRequest.Body
-PATCH request body
-
-
-| Field | Type | Label | Description |
-| ----- | ---- | ----- | ----------- |
-| address | [neo.fs.v2.refs.Address](#neo.fs.v2.refs.Address) |  | The address of the object that is requested to get patched. |
-| new_attributes | [Header.Attribute](#neo.fs.v2.object.Header.Attribute) | repeated | New attributes for the object. See `replace_attributes` flag usage to define how new attributes should be set. |
-| replace_attributes | [bool](#bool) |  | If this flag is set, then the object's attributes will be entirely replaced by `new_attributes` list. The empty `new_attributes` list with `replace_attributes = true` just resets attributes list for the object.
-
-Default `false` value for this flag means the attributes will be just merged. If the incoming `new_attributes` list contains already existing key, then it just replaces it while merging the lists. |
-| patch | [PatchRequest.Body.Patch](#neo.fs.v2.object.PatchRequest.Body.Patch) |  | The patch that is applied for the object. |
-
-
-<a name="neo.fs.v2.object.PatchRequest.Body.Patch"></a>
-
-### Message PatchRequest.Body.Patch
-The patch for the object's payload.
-
-
-| Field | Type | Label | Description |
-| ----- | ---- | ----- | ----------- |
-| source_range | [Range](#neo.fs.v2.object.Range) |  | The range of the source object for which the payload is replaced by the patch's chunk. If the range's `length = 0`, then the patch's chunk is just appended to the original payload starting from the `offest` without any replace. |
-| chunk | [bytes](#bytes) |  | The chunk that is being appended to or that replaces the original payload on the given range. |
-
-
-<a name="neo.fs.v2.object.PatchResponse"></a>
-
-### Message PatchResponse
-Object PATCH response
-
-
-| Field | Type | Label | Description |
-| ----- | ---- | ----- | ----------- |
-| body | [PatchResponse.Body](#neo.fs.v2.object.PatchResponse.Body) |  | Body for patch response message. |
-| meta_header | [neo.fs.v2.session.ResponseMetaHeader](#neo.fs.v2.session.ResponseMetaHeader) |  | Carries response meta information. Header data is used only to regulate message transport and does not affect request execution. |
-| verify_header | [neo.fs.v2.session.ResponseVerificationHeader](#neo.fs.v2.session.ResponseVerificationHeader) |  | Carries response verification information. This header is used to authenticate the nodes of the message route and check the correctness of transmission. |
-
-
-<a name="neo.fs.v2.object.PatchResponse.Body"></a>
-
-### Message PatchResponse.Body
-PATCH response body
-
-
-| Field | Type | Label | Description |
-| ----- | ---- | ----- | ----------- |
-| object_id | [neo.fs.v2.refs.ObjectID](#neo.fs.v2.refs.ObjectID) |  | The object ID of the saved patched object. |
-
-
 <a name="neo.fs.v2.object.PutRequest"></a>
 
 ### Message PutRequest
@@ -852,7 +658,7 @@ are not set, they will be calculated by a peer node.
 | object_id | [neo.fs.v2.refs.ObjectID](#neo.fs.v2.refs.ObjectID) |  | ObjectID if available. |
 | signature | [neo.fs.v2.refs.Signature](#neo.fs.v2.refs.Signature) |  | Object signature if available |
 | header | [Header](#neo.fs.v2.object.Header) |  | Object's Header |
-| copies_number | [uint32](#uint32) | repeated | Number of copies of the object to store within the RPC call. By default, object is processed according to the container's placement policy. Can be one of: 1. A single number; applied to the whole request and is treated as a minimal number of nodes that must store an object to complete the request successfully. 2. An ordered array; every number is treated as a minimal number of nodes in a corresponding placement vector that must store an object to complete the request successfully. The length MUST equal the placement vectors number, otherwise request is considered malformed. |
+| copies_number | [uint32](#uint32) |  | Number of the object copies to store within the RPC call. By default object is processed according to the container's placement policy. |
 
 
 <a name="neo.fs.v2.object.PutResponse"></a>
@@ -879,51 +685,6 @@ PUT Object response body
 | object_id | [neo.fs.v2.refs.ObjectID](#neo.fs.v2.refs.ObjectID) |  | Identifier of the saved object |
 
 
-<a name="neo.fs.v2.object.PutSingleRequest"></a>
-
-### Message PutSingleRequest
-Object PUT Single request
-
-
-| Field | Type | Label | Description |
-| ----- | ---- | ----- | ----------- |
-| body | [PutSingleRequest.Body](#neo.fs.v2.object.PutSingleRequest.Body) |  | Body of put single object request message. |
-| meta_header | [neo.fs.v2.session.RequestMetaHeader](#neo.fs.v2.session.RequestMetaHeader) |  | Carries request meta information. Header data is used only to regulate message transport and does not affect request execution. |
-| verify_header | [neo.fs.v2.session.RequestVerificationHeader](#neo.fs.v2.session.RequestVerificationHeader) |  | Carries request verification information. This header is used to authenticate the nodes of the message route and check the correctness of transmission. |
-
-
-<a name="neo.fs.v2.object.PutSingleRequest.Body"></a>
-
-### Message PutSingleRequest.Body
-PUT Single request body
-
-
-| Field | Type | Label | Description |
-| ----- | ---- | ----- | ----------- |
-| object | [Object](#neo.fs.v2.object.Object) |  | Prepared object with payload. |
-| copies_number | [uint32](#uint32) | repeated | Number of copies of the object to store within the RPC call. By default, object is processed according to the container's placement policy. Every number is treated as a minimal number of nodes in a corresponding placement vector that must store an object to complete the request successfully. The length MUST equal the placement vectors number, otherwise request is considered malformed. |
-
-
-<a name="neo.fs.v2.object.PutSingleResponse"></a>
-
-### Message PutSingleResponse
-Object PUT Single response
-
-
-| Field | Type | Label | Description |
-| ----- | ---- | ----- | ----------- |
-| body | [PutSingleResponse.Body](#neo.fs.v2.object.PutSingleResponse.Body) |  | Body of put single object response message. |
-| meta_header | [neo.fs.v2.session.ResponseMetaHeader](#neo.fs.v2.session.ResponseMetaHeader) |  | Carries response meta information. Header data is used only to regulate message transport and does not affect request execution. |
-| verify_header | [neo.fs.v2.session.ResponseVerificationHeader](#neo.fs.v2.session.ResponseVerificationHeader) |  | Carries response verification information. This header is used to authenticate the nodes of the message route and check the correctness of transmission. |
-
-
-<a name="neo.fs.v2.object.PutSingleResponse.Body"></a>
-
-### Message PutSingleResponse.Body
-PUT Single Object response body
-
-
-
 <a name="neo.fs.v2.object.Range"></a>
 
 ### Message Range
@@ -965,11 +726,11 @@ Object Search request body
 <a name="neo.fs.v2.object.SearchRequest.Body.Filter"></a>
 
 ### Message SearchRequest.Body.Filter
-Filter structure checks if the object header field or the attribute
+Filter structure checks if the object header field or the attribute content
-content matches a value.
+matches a value.
 
 If no filters are set, search request will return all objects of the
-container, including Regular object and Tombstone
+container, including Regular object, Tombstones and Storage Group
 objects. Most human users expect to get only object they can directly
 work with. In that case, `$Object:ROOT` filter should be used.
 
@@ -999,19 +760,16 @@ prefix to the name. Here is the list of fields available via this prefix:
   object_id of parent
 * $Object:split.splitID \
   16 byte UUIDv4 used to identify the split object hierarchy parts
-* $Object:ec.parent \
-  If the object is stored according to EC policy, then ec_parent
-  attribute is set to return an id list of all related EC chunks.
 
 There are some well-known filter aliases to match objects by certain
 properties:
 
 * $Object:ROOT \
-  Returns only `REGULAR` type objects that are not split or that are the
+  Returns only `REGULAR` type objects that are not split or that are the top
-  top level root objects in a split hierarchy. This includes objects not
+  level root objects in a split hierarchy. This includes objects not
   present physically, like large objects split into smaller objects
   without a separate top-level root object. Objects of other types like
-  Locks and Tombstones will not be shown. This filter may be
+  StorageGroups and Tombstones will not be shown. This filter may be
   useful for listing objects like `ls` command of some virtual file
   system. This filter is activated if the `key` exists, disregarding the
   value and matcher type.
@@ -1020,8 +778,8 @@ properties:
   activated if the `key` exists, disregarding the value and matcher type.
 
 Note: using filters with a key with prefix `$Object:` and match type
-`NOT_PRESENT `is not recommended since this is not a cross-version
+`NOT_PRESENT `is not recommended since this is not a cross-version approach.
-approach. Behavior when processing this kind of filters is undefined.
+Behavior when processing this kind of filters is undefined.
 
 
 | Field | Type | Label | Description |
@@ -1069,30 +827,6 @@ Object Search response body
  <!-- end services -->
 
 
-<a name="neo.fs.v2.object.ECInfo"></a>
-
-### Message ECInfo
-Meta information for the erasure-encoded object.
-
-
-| Field | Type | Label | Description |
-| ----- | ---- | ----- | ----------- |
-| chunks | [ECInfo.Chunk](#neo.fs.v2.object.ECInfo.Chunk) | repeated | Chunk stored on the node. |
-
-
-<a name="neo.fs.v2.object.ECInfo.Chunk"></a>
-
-### Message ECInfo.Chunk
-
-
-
-| Field | Type | Label | Description |
-| ----- | ---- | ----- | ----------- |
-| id | [neo.fs.v2.refs.ObjectID](#neo.fs.v2.refs.ObjectID) |  | Object ID of the chunk. |
-| index | [uint32](#uint32) |  | Index of the chunk. |
-| total | [uint32](#uint32) |  | Total number of chunks in this split. |
-
-
 <a name="neo.fs.v2.object.Header"></a>
 
 ### Message Header
@@ -1112,7 +846,6 @@ Object Header
 | session_token | [neo.fs.v2.session.SessionToken](#neo.fs.v2.session.SessionToken) |  | Session token, if it was used during Object creation. Need it to verify integrity and authenticity out of Request scope. |
 | attributes | [Header.Attribute](#neo.fs.v2.object.Header.Attribute) | repeated | User-defined object attributes |
 | split | [Header.Split](#neo.fs.v2.object.Header.Split) |  | Position of the object in the split hierarchy |
-| ec | [Header.EC](#neo.fs.v2.object.Header.EC) |  | Erasure code chunk information. |
 
 
 <a name="neo.fs.v2.object.Header.Attribute"></a>
@@ -1125,16 +858,15 @@ Key name must be an object-unique valid UTF-8 string. Value can't be empty.
 Objects with duplicated attribute names or attributes with empty values
 will be considered invalid.
 
-There are some "well-known" attributes starting with `__SYSTEM__`
+There are some "well-known" attributes starting with `__SYSTEM__` (`__NEOFS__` is deprecated) prefix
-(`__NEOFS__` is deprecated) prefix that affect system behaviour:
+that affect system behaviour:
 
 * [ __SYSTEM__UPLOAD_ID ] \
   (`__NEOFS__UPLOAD_ID` is deprecated) \
   Marks smaller parts of a split bigger object
 * [ __SYSTEM__EXPIRATION_EPOCH ] \
   (`__NEOFS__EXPIRATION_EPOCH` is deprecated) \
-  The epoch after which object with no LOCKs on it becomes unavailable.
+  Tells GC to delete object after that epoch
-  Locked object continues to be available until each of the LOCKs expire.
 * [ __SYSTEM__TICK_EPOCH ] \
   (`__NEOFS__TICK_EPOCH` is deprecated) \
   Decimal number that defines what epoch must produce
@@ -1164,7 +896,7 @@ And some well-known attributes used by applications only:
   MIME Content Type of object's payload
 
 For detailed description of each well-known attribute please see the
-corresponding section in FrostFS Technical Specification.
+corresponding section in NeoFS Technical Specification.
 
 
 | Field | Type | Label | Description |
@@ -1173,26 +905,6 @@ corresponding section in FrostFS Technical Specification.
 | value | [string](#string) |  | string value of the object attribute |
 
 
-<a name="neo.fs.v2.object.Header.EC"></a>
-
-### Message Header.EC
-Erasure code can be applied to any object.
-Information about encoded object structure is stored in `EC` header.
-All objects belonging to a single EC group have the same `parent` field.
-
-
-| Field | Type | Label | Description |
-| ----- | ---- | ----- | ----------- |
-| parent | [neo.fs.v2.refs.ObjectID](#neo.fs.v2.refs.ObjectID) |  | Identifier of the origin object. Known to all chunks. |
-| index | [uint32](#uint32) |  | Index of this chunk. |
-| total | [uint32](#uint32) |  | Total number of chunks in this split. |
-| header_length | [uint32](#uint32) |  | Total length of a parent header. Used to trim padding zeroes. |
-| header | [bytes](#bytes) |  | Chunk of a parent header. |
-| parent_split_id | [bytes](#bytes) |  | As the origin object is EC-splitted its identifier is known to all chunks as parent. But parent itself can be a part of Split (does not relate to EC-split). In this case parent_split_id should be set. |
-| parent_split_parent_id | [neo.fs.v2.refs.ObjectID](#neo.fs.v2.refs.ObjectID) |  | EC-parent's parent ID. parent_split_parent_id is set if EC-parent, itself, is a part of Split and if an object ID of its parent is presented. The field allows to determine how EC-chunk is placed in Split hierarchy. |
-| parent_attributes | [Header.Attribute](#neo.fs.v2.object.Header.Attribute) | repeated | EC parent's attributes. |
-
-
 <a name="neo.fs.v2.object.Header.Split"></a>
 
 ### Message Header.Split
@@ -1216,8 +928,8 @@ must be within the same container.
 
 ### Message Object
 Object structure. Object is immutable and content-addressed. It means
-`ObjectID` will change if the header or the payload changes. It's calculated
+`ObjectID` will change if the header or the payload changes. It's calculated as a
-as a hash of header field which contains hash of the object's payload.
+hash of header field which contains hash of the object's payload.
 
 For non-regular object types payload format depends on object type specified
 in the header.
@@ -1253,8 +965,8 @@ Short header fields
 ### Message SplitInfo
 Meta information of split hierarchy for object assembly. With the last part
 one can traverse linked list of split hierarchy back to the first part and
-assemble the original object. With a linking object one can assemble an
+assemble the original object. With a linking object one can assemble an object
-object right from the object parts.
+right from the object parts.
 
 
 | Field | Type | Label | Description |
@@ -1285,18 +997,20 @@ Type of match expression
 
 ### ObjectType
 Type of the object payload content. Only `REGULAR` type objects can be split,
-hence `TOMBSTONE` and `LOCK` payload is limited by the
+hence `TOMBSTONE`, `STORAGE_GROUP` and `LOCK` payload is limited by the maximum
-maximum object size.
+object size.
 
 String presentation of object type is the same as definition:
 * REGULAR
 * TOMBSTONE
+* STORAGE_GROUP
 * LOCK
 
 | Name | Number | Description |
 | ---- | ------ | ----------- |
 | REGULAR | 0 | Just a normal object |
 | TOMBSTONE | 1 | Used internally to identify deleted objects |
+| STORAGE_GROUP | 2 | StorageGroup information |
 | LOCK | 3 | Object lock |
 
 
@@ -1323,3 +1037,4 @@ String presentation of object type is the same as definition:
 | <a name="bool" /> bool |  | bool | boolean | boolean |
 | <a name="string" /> string | A string must always contain UTF-8 encoded or 7-bit ASCII text. | string | String | str/unicode |
 | <a name="bytes" /> bytes | May contain any arbitrary sequence of bytes. | string | ByteString | str |
+

proto-docs/refs.md

@@ -6,15 +6,16 @@
 - [refs/types.proto](#refs/types.proto)
 
   - Messages
-      - [Address](#neo.fs.v2.refs.Address)
+    - [Address](#neo.fs.v2.refs.Address)
-      - [Checksum](#neo.fs.v2.refs.Checksum)
+    - [Checksum](#neo.fs.v2.refs.Checksum)
-      - [ContainerID](#neo.fs.v2.refs.ContainerID)
+    - [ContainerID](#neo.fs.v2.refs.ContainerID)
-      - [ObjectID](#neo.fs.v2.refs.ObjectID)
+    - [ObjectID](#neo.fs.v2.refs.ObjectID)
-      - [OwnerID](#neo.fs.v2.refs.OwnerID)
+    - [OwnerID](#neo.fs.v2.refs.OwnerID)
-      - [Signature](#neo.fs.v2.refs.Signature)
+    - [Signature](#neo.fs.v2.refs.Signature)
-      - [SignatureRFC6979](#neo.fs.v2.refs.SignatureRFC6979)
+    - [SignatureRFC6979](#neo.fs.v2.refs.SignatureRFC6979)
-      - [Version](#neo.fs.v2.refs.Version)
+    - [SubnetID](#neo.fs.v2.refs.SubnetID)
-
+    - [Version](#neo.fs.v2.refs.Version)
+    
 
 - [Scalar Value Types](#scalar-value-types)
 
@@ -32,7 +33,7 @@
 <a name="neo.fs.v2.refs.Address"></a>
 
 ### Message Address
-Objects in FrostFS are addressed by their ContainerID and ObjectID.
+Objects in NeoFS are addressed by their ContainerID and ObjectID.
 
 String presentation of `Address` is a concatenation of string encoded
 `ContainerID` and `ObjectID` delimited by '/' character.
@@ -65,7 +66,7 @@ Depending on checksum algorithm type, the string presentation may vary:
 <a name="neo.fs.v2.refs.ContainerID"></a>
 
 ### Message ContainerID
-FrostFS container identifier. Container structures are immutable and
+NeoFS container identifier. Container structures are immutable and
 content-addressed.
 
 `ContainerID` is a 32 byte long
@@ -90,14 +91,13 @@ with/without paddings are accepted.
 <a name="neo.fs.v2.refs.ObjectID"></a>
 
 ### Message ObjectID
-FrostFS Object unique identifier. Objects are immutable and
+NeoFS Object unique identifier. Objects are immutable and content-addressed.
-content-addressed. It means `ObjectID` will change if the `header` or the
+It means `ObjectID` will change if the `header` or the `payload` changes.
-`payload` changes.
 
 `ObjectID` is a 32 byte long
 [SHA256](https://csrc.nist.gov/publications/detail/fips/180/4/final) hash of
-the object's `header` field, which, in it's turn, contains the hash of the
+the object's `header` field, which, in it's turn, contains the hash of the object's
-object's payload.
+payload.
 
 String presentation is a
 [base58](https://tools.ietf.org/html/draft-msporny-base58-02) encoded string.
@@ -142,7 +142,7 @@ with/without paddings are accepted.
 <a name="neo.fs.v2.refs.Signature"></a>
 
 ### Message Signature
-Signature of something in FrostFS.
+Signature of something in NeoFS.
 
 
 | Field | Type | Label | Description |
@@ -164,14 +164,28 @@ RFC 6979 signature.
 | sign | [bytes](#bytes) |  | Deterministic ECDSA with SHA-256 hashing |
 
 
+<a name="neo.fs.v2.refs.SubnetID"></a>
+
+### Message SubnetID
+NeoFS subnetwork identifier.
+
+String representation of a value is base-10 integer.
+
+JSON representation is an object containing a single `value` number field.
+
+
+| Field | Type | Label | Description |
+| ----- | ---- | ----- | ----------- |
+| value | [fixed32](#fixed32) |  | 4-byte integer subnetwork identifier. |
+
+
 <a name="neo.fs.v2.refs.Version"></a>
 
 ### Message Version
 API version used by a node.
 
 String presentation is a Semantic Versioning 2.0.0 compatible version string
-with 'v' prefix. i.e. `vX.Y`, where `X` is the major number, `Y` is the minor
+with 'v' prefix. i.e. `vX.Y`, where `X` is the major number, `Y` is the minor number.
-number.
 
 
 | Field | Type | Label | Description |
@@ -198,8 +212,7 @@ Checksum algorithm type.
 <a name="neo.fs.v2.refs.SignatureScheme"></a>
 
 ### SignatureScheme
-Signature scheme describes digital signing scheme used for (key, signature)
+Signature scheme describes digital signing scheme used for (key, signature) pair.
-pair.
 
 | Name | Number | Description |
 | ---- | ------ | ----------- |
@@ -231,3 +244,4 @@ pair.
 | <a name="bool" /> bool |  | bool | boolean | boolean |
 | <a name="string" /> string | A string must always contain UTF-8 encoded or 7-bit ASCII text. | string | String | str/unicode |
 | <a name="bytes" /> bytes | May contain any arbitrary sequence of bytes. | string | ByteString | str |
+

proto-docs/reputation.md

@@ -0,0 +1,289 @@
+# Protocol Documentation
+<a name="top"></a>
+
+## Table of Contents
+
+- [reputation/service.proto](#reputation/service.proto)
+ - Services
+    - [ReputationService](#neo.fs.v2.reputation.ReputationService)
+    
+  - Messages
+    - [AnnounceIntermediateResultRequest](#neo.fs.v2.reputation.AnnounceIntermediateResultRequest)
+    - [AnnounceIntermediateResultRequest.Body](#neo.fs.v2.reputation.AnnounceIntermediateResultRequest.Body)
+    - [AnnounceIntermediateResultResponse](#neo.fs.v2.reputation.AnnounceIntermediateResultResponse)
+    - [AnnounceIntermediateResultResponse.Body](#neo.fs.v2.reputation.AnnounceIntermediateResultResponse.Body)
+    - [AnnounceLocalTrustRequest](#neo.fs.v2.reputation.AnnounceLocalTrustRequest)
+    - [AnnounceLocalTrustRequest.Body](#neo.fs.v2.reputation.AnnounceLocalTrustRequest.Body)
+    - [AnnounceLocalTrustResponse](#neo.fs.v2.reputation.AnnounceLocalTrustResponse)
+    - [AnnounceLocalTrustResponse.Body](#neo.fs.v2.reputation.AnnounceLocalTrustResponse.Body)
+    
+
+- [reputation/types.proto](#reputation/types.proto)
+
+  - Messages
+    - [GlobalTrust](#neo.fs.v2.reputation.GlobalTrust)
+    - [GlobalTrust.Body](#neo.fs.v2.reputation.GlobalTrust.Body)
+    - [PeerID](#neo.fs.v2.reputation.PeerID)
+    - [PeerToPeerTrust](#neo.fs.v2.reputation.PeerToPeerTrust)
+    - [Trust](#neo.fs.v2.reputation.Trust)
+    
+
+- [Scalar Value Types](#scalar-value-types)
+
+
+
+<a name="reputation/service.proto"></a>
+<p align="right"><a href="#top">Top</a></p>
+
+## reputation/service.proto
+
+
+
+
+<a name="neo.fs.v2.reputation.ReputationService"></a>
+
+### Service "neo.fs.v2.reputation.ReputationService"
+`ReputationService` provides mechanisms for exchanging trust values with
+other NeoFS nodes. Nodes rate each other's reputation based on how good they
+process requests and set a trust level based on that rating. The trust
+information is passed to the next nodes to check and aggregate unless the
+final result is recorded.
+
+```
+rpc AnnounceLocalTrust(AnnounceLocalTrustRequest) returns (AnnounceLocalTrustResponse);
+rpc AnnounceIntermediateResult(AnnounceIntermediateResultRequest) returns (AnnounceIntermediateResultResponse);
+
+```
+
+#### Method AnnounceLocalTrust
+
+Announce local client trust information to any node in NeoFS network.
+
+Statuses:
+- **OK** (0, SECTION_SUCCESS):
+local trust has been successfully announced;
+- Common failures (SECTION_FAILURE_COMMON).
+
+| Name | Input | Output |
+| ---- | ----- | ------ |
+| AnnounceLocalTrust | [AnnounceLocalTrustRequest](#neo.fs.v2.reputation.AnnounceLocalTrustRequest) | [AnnounceLocalTrustResponse](#neo.fs.v2.reputation.AnnounceLocalTrustResponse) |
+#### Method AnnounceIntermediateResult
+
+Announce the intermediate result of the iterative algorithm for
+calculating the global reputation of the node in NeoFS network.
+
+Statuses:
+- **OK** (0, SECTION_SUCCESS):
+intermediate trust estimation has been successfully announced;
+- Common failures (SECTION_FAILURE_COMMON).
+
+| Name | Input | Output |
+| ---- | ----- | ------ |
+| AnnounceIntermediateResult | [AnnounceIntermediateResultRequest](#neo.fs.v2.reputation.AnnounceIntermediateResultRequest) | [AnnounceIntermediateResultResponse](#neo.fs.v2.reputation.AnnounceIntermediateResultResponse) |
+ <!-- end services -->
+
+
+<a name="neo.fs.v2.reputation.AnnounceIntermediateResultRequest"></a>
+
+### Message AnnounceIntermediateResultRequest
+Announce intermediate global trust information.
+
+
+| Field | Type | Label | Description |
+| ----- | ---- | ----- | ----------- |
+| body | [AnnounceIntermediateResultRequest.Body](#neo.fs.v2.reputation.AnnounceIntermediateResultRequest.Body) |  | Body of the request message. |
+| meta_header | [neo.fs.v2.session.RequestMetaHeader](#neo.fs.v2.session.RequestMetaHeader) |  | Carries request meta information. Header data is used only to regulate message transport and does not affect request execution. |
+| verify_header | [neo.fs.v2.session.RequestVerificationHeader](#neo.fs.v2.session.RequestVerificationHeader) |  | Carries request verification information. This header is used to authenticate the nodes of the message route and check the correctness of transmission. |
+
+
+<a name="neo.fs.v2.reputation.AnnounceIntermediateResultRequest.Body"></a>
+
+### Message AnnounceIntermediateResultRequest.Body
+Announce intermediate global trust information.
+
+
+| Field | Type | Label | Description |
+| ----- | ---- | ----- | ----------- |
+| epoch | [uint64](#uint64) |  | Iteration execution Epoch number |
+| iteration | [uint32](#uint32) |  | Iteration sequence number |
+| trust | [PeerToPeerTrust](#neo.fs.v2.reputation.PeerToPeerTrust) |  | Current global trust value calculated at the specified iteration |
+
+
+<a name="neo.fs.v2.reputation.AnnounceIntermediateResultResponse"></a>
+
+### Message AnnounceIntermediateResultResponse
+Intermediate global trust information announcement response.
+
+
+| Field | Type | Label | Description |
+| ----- | ---- | ----- | ----------- |
+| body | [AnnounceIntermediateResultResponse.Body](#neo.fs.v2.reputation.AnnounceIntermediateResultResponse.Body) |  | Body of the response message. |
+| meta_header | [neo.fs.v2.session.ResponseMetaHeader](#neo.fs.v2.session.ResponseMetaHeader) |  | Carries response meta information. Header data is used only to regulate message transport and does not affect request execution. |
+| verify_header | [neo.fs.v2.session.ResponseVerificationHeader](#neo.fs.v2.session.ResponseVerificationHeader) |  | Carries response verification information. This header is used to authenticate the nodes of the message route and check the correctness of transmission. |
+
+
+<a name="neo.fs.v2.reputation.AnnounceIntermediateResultResponse.Body"></a>
+
+### Message AnnounceIntermediateResultResponse.Body
+Response to the node's intermediate global trust information announcement has
+an empty body because the trust exchange operation is asynchronous. If
+Trust information does not pass sanity checks, it is silently ignored.
+
+
+
+<a name="neo.fs.v2.reputation.AnnounceLocalTrustRequest"></a>
+
+### Message AnnounceLocalTrustRequest
+Announce node's local trust information.
+
+
+| Field | Type | Label | Description |
+| ----- | ---- | ----- | ----------- |
+| body | [AnnounceLocalTrustRequest.Body](#neo.fs.v2.reputation.AnnounceLocalTrustRequest.Body) |  | Body of the request message. |
+| meta_header | [neo.fs.v2.session.RequestMetaHeader](#neo.fs.v2.session.RequestMetaHeader) |  | Carries request meta information. Header data is used only to regulate message transport and does not affect request execution. |
+| verify_header | [neo.fs.v2.session.RequestVerificationHeader](#neo.fs.v2.session.RequestVerificationHeader) |  | Carries request verification information. This header is used to authenticate the nodes of the message route and check the correctness of transmission. |
+
+
+<a name="neo.fs.v2.reputation.AnnounceLocalTrustRequest.Body"></a>
+
+### Message AnnounceLocalTrustRequest.Body
+Announce node's local trust information.
+
+
+| Field | Type | Label | Description |
+| ----- | ---- | ----- | ----------- |
+| epoch | [uint64](#uint64) |  | Trust assessment Epoch number |
+| trusts | [Trust](#neo.fs.v2.reputation.Trust) | repeated | List of normalized local trust values to other NeoFS nodes. The value is calculated according to EigenTrust++ algorithm and must be a floating point number in [0;1] range. |
+
+
+<a name="neo.fs.v2.reputation.AnnounceLocalTrustResponse"></a>
+
+### Message AnnounceLocalTrustResponse
+Node's local trust information announcement response.
+
+
+| Field | Type | Label | Description |
+| ----- | ---- | ----- | ----------- |
+| body | [AnnounceLocalTrustResponse.Body](#neo.fs.v2.reputation.AnnounceLocalTrustResponse.Body) |  | Body of the response message. |
+| meta_header | [neo.fs.v2.session.ResponseMetaHeader](#neo.fs.v2.session.ResponseMetaHeader) |  | Carries response meta information. Header data is used only to regulate message transport and does not affect request execution. |
+| verify_header | [neo.fs.v2.session.ResponseVerificationHeader](#neo.fs.v2.session.ResponseVerificationHeader) |  | Carries response verification information. This header is used to authenticate the nodes of the message route and check the correctness of transmission. |
+
+
+<a name="neo.fs.v2.reputation.AnnounceLocalTrustResponse.Body"></a>
+
+### Message AnnounceLocalTrustResponse.Body
+Response to the node's local trust information announcement has an empty body
+because the trust exchange operation is asynchronous. If Trust information
+does not pass sanity checks, it is silently ignored.
+
+
+ <!-- end messages -->
+
+ <!-- end enums -->
+
+
+
+<a name="reputation/types.proto"></a>
+<p align="right"><a href="#top">Top</a></p>
+
+## reputation/types.proto
+
+
+ <!-- end services -->
+
+
+<a name="neo.fs.v2.reputation.GlobalTrust"></a>
+
+### Message GlobalTrust
+Global trust level to NeoFS node.
+
+
+| Field | Type | Label | Description |
+| ----- | ---- | ----- | ----------- |
+| version | [neo.fs.v2.refs.Version](#neo.fs.v2.refs.Version) |  | Message format version. Effectively, the version of API library used to create the message. |
+| body | [GlobalTrust.Body](#neo.fs.v2.reputation.GlobalTrust.Body) |  | Message body |
+| signature | [neo.fs.v2.refs.Signature](#neo.fs.v2.refs.Signature) |  | Signature of the binary `body` field by the manager. |
+
+
+<a name="neo.fs.v2.reputation.GlobalTrust.Body"></a>
+
+### Message GlobalTrust.Body
+Message body structure.
+
+
+| Field | Type | Label | Description |
+| ----- | ---- | ----- | ----------- |
+| manager | [PeerID](#neo.fs.v2.reputation.PeerID) |  | Node manager ID |
+| trust | [Trust](#neo.fs.v2.reputation.Trust) |  | Global trust level |
+
+
+<a name="neo.fs.v2.reputation.PeerID"></a>
+
+### Message PeerID
+NeoFS unique peer identifier is a 33 byte long compressed public key of the
+node, the same as the one stored in the network map.
+
+String presentation is a
+[base58](https://tools.ietf.org/html/draft-msporny-base58-02) encoded string.
+
+JSON value will be data encoded as a string using standard base64
+encoding with paddings. Either
+[standard](https://tools.ietf.org/html/rfc4648#section-4) or
+[URL-safe](https://tools.ietf.org/html/rfc4648#section-5) base64 encoding
+with/without paddings are accepted.
+
+
+| Field | Type | Label | Description |
+| ----- | ---- | ----- | ----------- |
+| public_key | [bytes](#bytes) |  | Peer node's public key |
+
+
+<a name="neo.fs.v2.reputation.PeerToPeerTrust"></a>
+
+### Message PeerToPeerTrust
+Trust level of a peer to a peer.
+
+
+| Field | Type | Label | Description |
+| ----- | ---- | ----- | ----------- |
+| trusting_peer | [PeerID](#neo.fs.v2.reputation.PeerID) |  | Identifier of the trusting peer |
+| trust | [Trust](#neo.fs.v2.reputation.Trust) |  | Trust level |
+
+
+<a name="neo.fs.v2.reputation.Trust"></a>
+
+### Message Trust
+Trust level to a NeoFS network peer.
+
+
+| Field | Type | Label | Description |
+| ----- | ---- | ----- | ----------- |
+| peer | [PeerID](#neo.fs.v2.reputation.PeerID) |  | Identifier of the trusted peer |
+| value | [double](#double) |  | Trust level in [0:1] range |
+
+ <!-- end messages -->
+
+ <!-- end enums -->
+
+
+
+## Scalar Value Types
+
+| .proto Type | Notes | C++ Type | Java Type | Python Type |
+| ----------- | ----- | -------- | --------- | ----------- |
+| <a name="double" /> double |  | double | double | float |
+| <a name="float" /> float |  | float | float | float |
+| <a name="int32" /> int32 | Uses variable-length encoding. Inefficient for encoding negative numbers – if your field is likely to have negative values, use sint32 instead. | int32 | int | int |
+| <a name="int64" /> int64 | Uses variable-length encoding. Inefficient for encoding negative numbers – if your field is likely to have negative values, use sint64 instead. | int64 | long | int/long |
+| <a name="uint32" /> uint32 | Uses variable-length encoding. | uint32 | int | int/long |
+| <a name="uint64" /> uint64 | Uses variable-length encoding. | uint64 | long | int/long |
+| <a name="sint32" /> sint32 | Uses variable-length encoding. Signed int value. These more efficiently encode negative numbers than regular int32s. | int32 | int | int |
+| <a name="sint64" /> sint64 | Uses variable-length encoding. Signed int value. These more efficiently encode negative numbers than regular int64s. | int64 | long | int/long |
+| <a name="fixed32" /> fixed32 | Always four bytes. More efficient than uint32 if values are often greater than 2^28. | uint32 | int | int |
+| <a name="fixed64" /> fixed64 | Always eight bytes. More efficient than uint64 if values are often greater than 2^56. | uint64 | long | int/long |
+| <a name="sfixed32" /> sfixed32 | Always four bytes. | int32 | int | int |
+| <a name="sfixed64" /> sfixed64 | Always eight bytes. | int64 | long | int/long |
+| <a name="bool" /> bool |  | bool | boolean | boolean |
+| <a name="string" /> string | A string must always contain UTF-8 encoded or 7-bit ASCII text. | string | String | str/unicode |
+| <a name="bytes" /> bytes | May contain any arbitrary sequence of bytes. | string | ByteString | str |
+

proto-docs/service.md

@@ -0,0 +1,125 @@
+# Protocol Documentation
+<a name="top"></a>
+
+## Table of Contents
+
+- [service/types.proto](#service/types.proto)
+
+  - Messages
+    - [RequestMetaHeader](#neo.fs.v2.service.RequestMetaHeader)
+    - [RequestVerificationHeader](#neo.fs.v2.service.RequestVerificationHeader)
+    - [ResponseMetaHeader](#neo.fs.v2.service.ResponseMetaHeader)
+    - [ResponseVerificationHeader](#neo.fs.v2.service.ResponseVerificationHeader)
+    - [XHeader](#neo.fs.v2.service.XHeader)
+    
+
+- [Scalar Value Types](#scalar-value-types)
+
+
+
+<a name="service/types.proto"></a>
+<p align="right"><a href="#top">Top</a></p>
+
+## service/types.proto
+
+
+ <!-- end services -->
+
+
+<a name="neo.fs.v2.service.RequestMetaHeader"></a>
+
+### Message RequestMetaHeader
+Information about the request
+
+
+| Field | Type | Label | Description |
+| ----- | ---- | ----- | ----------- |
+| version | [neo.fs.v2.refs.Version](#neo.fs.v2.refs.Version) |  | Client API version. |
+| epoch | [uint64](#uint64) |  | Client local epoch number. Set to 0 if unknown. |
+| ttl | [uint32](#uint32) |  | Maximum number of nodes in the request route. |
+| x_headers | [XHeader](#neo.fs.v2.service.XHeader) | repeated | Request X-Headers. |
+| session_token | [neo.fs.v2.session.SessionToken](#neo.fs.v2.session.SessionToken) |  | Token is a token of the session within which the request is sent |
+| bearer_token | [neo.fs.v2.acl.BearerToken](#neo.fs.v2.acl.BearerToken) |  | Bearer is a Bearer token of the request |
+| origin | [RequestMetaHeader](#neo.fs.v2.service.RequestMetaHeader) |  | RequestMetaHeader of the origin request. |
+
+
+<a name="neo.fs.v2.service.RequestVerificationHeader"></a>
+
+### Message RequestVerificationHeader
+Verification info for request signed by all intermediate nodes
+
+
+| Field | Type | Label | Description |
+| ----- | ---- | ----- | ----------- |
+| body_signature | [neo.fs.v2.refs.Signature](#neo.fs.v2.refs.Signature) |  | Request Body signature. Should be generated once by request initiator. |
+| meta_signature | [neo.fs.v2.refs.Signature](#neo.fs.v2.refs.Signature) |  | Request Meta signature is added and signed by any intermediate node |
+| origin_signature | [neo.fs.v2.refs.Signature](#neo.fs.v2.refs.Signature) |  | Sign previous hops |
+| origin | [RequestVerificationHeader](#neo.fs.v2.service.RequestVerificationHeader) |  | Chain of previous hops signatures |
+
+
+<a name="neo.fs.v2.service.ResponseMetaHeader"></a>
+
+### Message ResponseMetaHeader
+Information about the response
+
+
+| Field | Type | Label | Description |
+| ----- | ---- | ----- | ----------- |
+| version | [neo.fs.v2.refs.Version](#neo.fs.v2.refs.Version) |  | Server API version. |
+| epoch | [uint64](#uint64) |  | Server local epoch number. |
+| ttl | [uint32](#uint32) |  | Maximum number of nodes in the response route. |
+| x_headers | [XHeader](#neo.fs.v2.service.XHeader) | repeated | Response X-Headers. |
+| origin | [ResponseMetaHeader](#neo.fs.v2.service.ResponseMetaHeader) |  | Carries response meta header of the origin response. |
+
+
+<a name="neo.fs.v2.service.ResponseVerificationHeader"></a>
+
+### Message ResponseVerificationHeader
+Verification info for response signed by all intermediate nodes
+
+
+| Field | Type | Label | Description |
+| ----- | ---- | ----- | ----------- |
+| body_signature | [neo.fs.v2.refs.Signature](#neo.fs.v2.refs.Signature) |  | Response Body signature. Should be generated once by answering node. |
+| meta_signature | [neo.fs.v2.refs.Signature](#neo.fs.v2.refs.Signature) |  | Response Meta signature is added and signed by any intermediate node |
+| origin_signature | [neo.fs.v2.refs.Signature](#neo.fs.v2.refs.Signature) |  | Sign previous hops |
+| origin | [ResponseVerificationHeader](#neo.fs.v2.service.ResponseVerificationHeader) |  | Chain of previous hops signatures |
+
+
+<a name="neo.fs.v2.service.XHeader"></a>
+
+### Message XHeader
+Extended headers for Request/Response
+
+
+| Field | Type | Label | Description |
+| ----- | ---- | ----- | ----------- |
+| key | [string](#string) |  | Key of the X-Header. |
+| value | [string](#string) |  | Value of the X-Header. |
+
+ <!-- end messages -->
+
+ <!-- end enums -->
+
+
+
+## Scalar Value Types
+
+| .proto Type | Notes | C++ Type | Java Type | Python Type |
+| ----------- | ----- | -------- | --------- | ----------- |
+| <a name="double" /> double |  | double | double | float |
+| <a name="float" /> float |  | float | float | float |
+| <a name="int32" /> int32 | Uses variable-length encoding. Inefficient for encoding negative numbers – if your field is likely to have negative values, use sint32 instead. | int32 | int | int |
+| <a name="int64" /> int64 | Uses variable-length encoding. Inefficient for encoding negative numbers – if your field is likely to have negative values, use sint64 instead. | int64 | long | int/long |
+| <a name="uint32" /> uint32 | Uses variable-length encoding. | uint32 | int | int/long |
+| <a name="uint64" /> uint64 | Uses variable-length encoding. | uint64 | long | int/long |
+| <a name="sint32" /> sint32 | Uses variable-length encoding. Signed int value. These more efficiently encode negative numbers than regular int32s. | int32 | int | int |
+| <a name="sint64" /> sint64 | Uses variable-length encoding. Signed int value. These more efficiently encode negative numbers than regular int64s. | int64 | long | int/long |
+| <a name="fixed32" /> fixed32 | Always four bytes. More efficient than uint32 if values are often greater than 2^28. | uint32 | int | int |
+| <a name="fixed64" /> fixed64 | Always eight bytes. More efficient than uint64 if values are often greater than 2^56. | uint64 | long | int/long |
+| <a name="sfixed32" /> sfixed32 | Always four bytes. | int32 | int | int |
+| <a name="sfixed64" /> sfixed64 | Always eight bytes. | int64 | long | int/long |
+| <a name="bool" /> bool |  | bool | boolean | boolean |
+| <a name="string" /> string | A string must always contain UTF-8 encoded or 7-bit ASCII text. | string | String | str/unicode |
+| <a name="bytes" /> bytes | May contain any arbitrary sequence of bytes. | string | ByteString | str |
+

proto-docs/session.md

@@ -4,31 +4,31 @@
 ## Table of Contents
 
 - [session/service.proto](#session/service.proto)
-  - Services
+ - Services
-      - [SessionService](#neo.fs.v2.session.SessionService)
+    - [SessionService](#neo.fs.v2.session.SessionService)
-
+    
   - Messages
-      - [CreateRequest](#neo.fs.v2.session.CreateRequest)
+    - [CreateRequest](#neo.fs.v2.session.CreateRequest)
-      - [CreateRequest.Body](#neo.fs.v2.session.CreateRequest.Body)
+    - [CreateRequest.Body](#neo.fs.v2.session.CreateRequest.Body)
-      - [CreateResponse](#neo.fs.v2.session.CreateResponse)
+    - [CreateResponse](#neo.fs.v2.session.CreateResponse)
-      - [CreateResponse.Body](#neo.fs.v2.session.CreateResponse.Body)
+    - [CreateResponse.Body](#neo.fs.v2.session.CreateResponse.Body)
-
+    
 
 - [session/types.proto](#session/types.proto)
 
   - Messages
-      - [ContainerSessionContext](#neo.fs.v2.session.ContainerSessionContext)
+    - [ContainerSessionContext](#neo.fs.v2.session.ContainerSessionContext)
-      - [ObjectSessionContext](#neo.fs.v2.session.ObjectSessionContext)
+    - [ObjectSessionContext](#neo.fs.v2.session.ObjectSessionContext)
-      - [ObjectSessionContext.Target](#neo.fs.v2.session.ObjectSessionContext.Target)
+    - [ObjectSessionContext.Target](#neo.fs.v2.session.ObjectSessionContext.Target)
-      - [RequestMetaHeader](#neo.fs.v2.session.RequestMetaHeader)
+    - [RequestMetaHeader](#neo.fs.v2.session.RequestMetaHeader)
-      - [RequestVerificationHeader](#neo.fs.v2.session.RequestVerificationHeader)
+    - [RequestVerificationHeader](#neo.fs.v2.session.RequestVerificationHeader)
-      - [ResponseMetaHeader](#neo.fs.v2.session.ResponseMetaHeader)
+    - [ResponseMetaHeader](#neo.fs.v2.session.ResponseMetaHeader)
-      - [ResponseVerificationHeader](#neo.fs.v2.session.ResponseVerificationHeader)
+    - [ResponseVerificationHeader](#neo.fs.v2.session.ResponseVerificationHeader)
-      - [SessionToken](#neo.fs.v2.session.SessionToken)
+    - [SessionToken](#neo.fs.v2.session.SessionToken)
-      - [SessionToken.Body](#neo.fs.v2.session.SessionToken.Body)
+    - [SessionToken.Body](#neo.fs.v2.session.SessionToken.Body)
-      - [SessionToken.Body.TokenLifetime](#neo.fs.v2.session.SessionToken.Body.TokenLifetime)
+    - [SessionToken.Body.TokenLifetime](#neo.fs.v2.session.SessionToken.Body.TokenLifetime)
-      - [XHeader](#neo.fs.v2.session.XHeader)
+    - [XHeader](#neo.fs.v2.session.XHeader)
-
+    
 
 - [Scalar Value Types](#scalar-value-types)
 
@@ -48,7 +48,7 @@
 `SessionService` allows to establish a temporary trust relationship between
 two peer nodes and generate a `SessionToken` as the proof of trust to be
 attached in requests for further verification. Please see corresponding
-section of FrostFS Technical Specification for details.
+section of NeoFS Technical Specification for details.
 
 ```
 rpc Create(CreateRequest) returns (CreateResponse);
@@ -168,7 +168,7 @@ Carries objects involved in the object session.
 | Field | Type | Label | Description |
 | ----- | ---- | ----- | ----------- |
 | container | [neo.fs.v2.refs.ContainerID](#neo.fs.v2.refs.ContainerID) |  | Indicates which container the session is spread to. Field MUST be set and correct. |
-| objects | [neo.fs.v2.refs.ObjectID](#neo.fs.v2.refs.ObjectID) | repeated | Indicates which objects the session is spread to. Objects are expected to be stored in the FrostFS container referenced by `container` field. Each element MUST have correct format. |
+| objects | [neo.fs.v2.refs.ObjectID](#neo.fs.v2.refs.ObjectID) | repeated | Indicates which objects the session is spread to. Objects are expected to be stored in the NeoFS container referenced by `container` field. Each element MUST have correct format. |
 
 
 <a name="neo.fs.v2.session.RequestMetaHeader"></a>
@@ -187,7 +187,7 @@ request meta headers are folded in matryoshka style.
 | session_token | [SessionToken](#neo.fs.v2.session.SessionToken) |  | Session token within which the request is sent |
 | bearer_token | [neo.fs.v2.acl.BearerToken](#neo.fs.v2.acl.BearerToken) |  | `BearerToken` with eACL overrides for the request |
 | origin | [RequestMetaHeader](#neo.fs.v2.session.RequestMetaHeader) |  | `RequestMetaHeader` of the origin request |
-| magic_number | [uint64](#uint64) |  | FrostFS network magic. Must match the value for the network that the server belongs to. |
+| magic_number | [uint64](#uint64) |  | NeoFS network magic. Must match the value for the network that the server belongs to. |
 
 
 <a name="neo.fs.v2.session.RequestVerificationHeader"></a>
@@ -237,12 +237,12 @@ Verification info for the response signed by all intermediate nodes
 <a name="neo.fs.v2.session.SessionToken"></a>
 
 ### Message SessionToken
-FrostFS Session Token.
+NeoFS Session Token.
 
 
 | Field | Type | Label | Description |
 | ----- | ---- | ----- | ----------- |
-| body | [SessionToken.Body](#neo.fs.v2.session.SessionToken.Body) |  | Session Token contains the proof of trust between peers to be attached in requests for further verification. Please see corresponding section of FrostFS Technical Specification for details. |
+| body | [SessionToken.Body](#neo.fs.v2.session.SessionToken.Body) |  | Session Token contains the proof of trust between peers to be attached in requests for further verification. Please see corresponding section of NeoFS Technical Specification for details. |
 | signature | [neo.fs.v2.refs.Signature](#neo.fs.v2.refs.Signature) |  | Signature of `SessionToken` information |
 
 
@@ -278,15 +278,15 @@ Lifetime parameters of the token. Field names taken from rfc7519.
 <a name="neo.fs.v2.session.XHeader"></a>
 
 ### Message XHeader
-Extended headers for Request/Response. They may contain any user-defined
+Extended headers for Request/Response. They may contain any user-defined headers
-headers to be interpreted on application level.
+to be interpreted on application level.
 
-Key name must be a unique valid UTF-8 string. Value can't be empty. Requests
+Key name must be a unique valid UTF-8 string. Value can't be empty. Requests or
-or Responses with duplicated header names or headers with empty values will
+Responses with duplicated header names or headers with empty values will be
-be considered invalid.
+considered invalid.
 
-There are some "well-known" headers starting with `__SYSTEM__` (`__NEOFS__`
+There are some "well-known" headers starting with `__SYSTEM__` (`__NEOFS__` is deprecated) prefix that
-is deprecated) prefix that affect system behaviour:
+affect system behaviour:
 
 * [ __SYSTEM__NETMAP_EPOCH ] \
   (`__NEOFS__NETMAP_EPOCH` is deprecated) \
@@ -297,8 +297,8 @@ is deprecated) prefix that affect system behaviour:
   (`__NEOFS__NETMAP_LOOKUP_DEPTH` is deprecated) \
   If object can't be found using current epoch's netmap, this header limits
   how many past epochs the node can look up through. The `value` is string
-  encoded `uint64` in decimal presentation. If set to '0' or not set, only
+  encoded `uint64` in decimal presentation. If set to '0' or not set, only the
-  the current epoch will be used.
+  current epoch will be used.
 
 
 | Field | Type | Label | Description |
@@ -338,7 +338,6 @@ Object request verbs
 | DELETE | 5 | Refers to object.Delete RPC call |
 | RANGE | 6 | Refers to object.GetRange RPC call |
 | RANGEHASH | 7 | Refers to object.GetRangeHash RPC call |
-| PATCH | 8 | Refers to object.Patch RPC call |
 
 
  <!-- end enums -->
@@ -364,3 +363,4 @@ Object request verbs
 | <a name="bool" /> bool |  | bool | boolean | boolean |
 | <a name="string" /> string | A string must always contain UTF-8 encoded or 7-bit ASCII text. | string | String | str/unicode |
 | <a name="bytes" /> bytes | May contain any arbitrary sequence of bytes. | string | ByteString | str |
+

proto-docs/status.md

@@ -6,9 +6,9 @@
 - [status/types.proto](#status/types.proto)
 
   - Messages
-      - [Status](#neo.fs.v2.status.Status)
+    - [Status](#neo.fs.v2.status.Status)
-      - [Status.Detail](#neo.fs.v2.status.Status.Detail)
+    - [Status.Detail](#neo.fs.v2.status.Status.Detail)
-
+    
 
 - [Scalar Value Types](#scalar-value-types)
 
@@ -26,12 +26,12 @@
 <a name="neo.fs.v2.status.Status"></a>
 
 ### Message Status
-Declares the general format of the status returns of the FrostFS RPC
+Declares the general format of the status returns of the NeoFS RPC protocol.
-protocol. Status is present in all response messages. Each RPC of FrostFS
+Status is present in all response messages. Each RPC of NeoFS protocol
-protocol describes the possible outcomes and details of the operation.
+describes the possible outcomes and details of the operation.
 
 Each status is assigned a one-to-one numeric code. Any unique result of an
-operation in FrostFS is unambiguously associated with the code value.
+operation in NeoFS is unambiguously associated with the code value.
 
 Numerical set of codes is split into 1024-element sections. An enumeration
 is defined for each section. Values can be referred to in the following ways:
@@ -79,17 +79,6 @@ covered by the code.
  <!-- end messages -->
 
 
-<a name="neo.fs.v2.status.APEManager"></a>
-
-### APEManager
-Section of status for APE manager related operations.
-
-| Name | Number | Description |
-| ---- | ------ | ----------- |
-| APE_MANAGER_ACCESS_DENIED | 0 | [**5120**] The operation is denied by APE manager. |
-
-
-
 <a name="neo.fs.v2.status.CommonFail"></a>
 
 ### CommonFail
@@ -98,10 +87,9 @@ Section of failed statuses independent of the operation.
 | Name | Number | Description |
 | ---- | ------ | ----------- |
 | INTERNAL | 0 | [**1024**] Internal server error, default failure. Not detailed. If the server cannot match failed outcome to the code, it should use this code. |
-| WRONG_MAGIC_NUMBER | 1 | [**1025**] Wrong magic of the FrostFS network. Details: - [**0**] Magic number of the served FrostFS network (big-endian 64-bit unsigned integer). |
+| WRONG_MAGIC_NUMBER | 1 | [**1025**] Wrong magic of the NeoFS network. Details: - [**0**] Magic number of the served NeoFS network (big-endian 64-bit unsigned integer). |
 | SIGNATURE_VERIFICATION_FAIL | 2 | [**1026**] Signature verification failure. |
 | NODE_UNDER_MAINTENANCE | 3 | [**1027**] Node is under maintenance. |
-| INVALID_ARGUMENT | 4 | [**1028**] Invalid argument error. If the server fails on validation of a request parameter as the client sent it incorrectly, then this code should be used. |
 
 
 
@@ -114,7 +102,6 @@ Section of statuses for container-related operations.
 | ---- | ------ | ----------- |
 | CONTAINER_NOT_FOUND | 0 | [**3072**] Container not found. |
 | EACL_NOT_FOUND | 1 | [**3073**] eACL table not found. |
-| CONTAINER_ACCESS_DENIED | 2 | [**3074**] Container access denied. |
 
 
 
@@ -146,7 +133,6 @@ Section identifiers.
 | SECTION_OBJECT | 2 | Object service-specific errors. |
 | SECTION_CONTAINER | 3 | Container service-specific errors. |
 | SECTION_SESSION | 4 | Session service-specific errors. |
-| SECTION_APE_MANAGER | 5 | Session service-specific errors. |
 
 
 
@@ -165,7 +151,7 @@ Section of statuses for session-related operations.
 <a name="neo.fs.v2.status.Success"></a>
 
 ### Success
-Section of FrostFS successful return codes.
+Section of NeoFS successful return codes.
 
 | Name | Number | Description |
 | ---- | ------ | ----------- |
@@ -195,3 +181,4 @@ Section of FrostFS successful return codes.
 | <a name="bool" /> bool |  | bool | boolean | boolean |
 | <a name="string" /> string | A string must always contain UTF-8 encoded or 7-bit ASCII text. | string | String | str/unicode |
 | <a name="bytes" /> bytes | May contain any arbitrary sequence of bytes. | string | ByteString | str |
+

proto-docs/storagegroup.md

@@ -0,0 +1,71 @@
+# Protocol Documentation
+<a name="top"></a>
+
+## Table of Contents
+
+- [storagegroup/types.proto](#storagegroup/types.proto)
+
+  - Messages
+    - [StorageGroup](#neo.fs.v2.storagegroup.StorageGroup)
+    
+
+- [Scalar Value Types](#scalar-value-types)
+
+
+
+<a name="storagegroup/types.proto"></a>
+<p align="right"><a href="#top">Top</a></p>
+
+## storagegroup/types.proto
+
+
+ <!-- end services -->
+
+
+<a name="neo.fs.v2.storagegroup.StorageGroup"></a>
+
+### Message StorageGroup
+StorageGroup keeps verification information for Data Audit sessions. Objects
+that require paid storage guarantees are gathered in `StorageGroups` with
+additional information used for the proof of storage. `StorageGroup` only
+contains objects from the same container.
+
+Being an object payload, StorageGroup may have expiration Epoch set with
+`__SYSTEM__EXPIRATION_EPOCH` (`__NEOFS__EXPIRATION_EPOCH` is deprecated) well-known attribute. When expired, StorageGroup
+will be ignored by InnerRing nodes during Data Audit cycles and will be
+deleted by Storage Nodes.
+
+
+| Field | Type | Label | Description |
+| ----- | ---- | ----- | ----------- |
+| validation_data_size | [uint64](#uint64) |  | Total size of the payloads of objects in the storage group |
+| validation_hash | [neo.fs.v2.refs.Checksum](#neo.fs.v2.refs.Checksum) |  | Homomorphic hash from the concatenation of the payloads of the storage group members. The order of concatenation is the same as the order of the members in the `members` field. |
+| expiration_epoch | [uint64](#uint64) |  | DEPRECATED. Last NeoFS epoch number of the storage group lifetime |
+| members | [neo.fs.v2.refs.ObjectID](#neo.fs.v2.refs.ObjectID) | repeated | Strictly ordered list of storage group member objects. Members MUST be unique |
+
+ <!-- end messages -->
+
+ <!-- end enums -->
+
+
+
+## Scalar Value Types
+
+| .proto Type | Notes | C++ Type | Java Type | Python Type |
+| ----------- | ----- | -------- | --------- | ----------- |
+| <a name="double" /> double |  | double | double | float |
+| <a name="float" /> float |  | float | float | float |
+| <a name="int32" /> int32 | Uses variable-length encoding. Inefficient for encoding negative numbers – if your field is likely to have negative values, use sint32 instead. | int32 | int | int |
+| <a name="int64" /> int64 | Uses variable-length encoding. Inefficient for encoding negative numbers – if your field is likely to have negative values, use sint64 instead. | int64 | long | int/long |
+| <a name="uint32" /> uint32 | Uses variable-length encoding. | uint32 | int | int/long |
+| <a name="uint64" /> uint64 | Uses variable-length encoding. | uint64 | long | int/long |
+| <a name="sint32" /> sint32 | Uses variable-length encoding. Signed int value. These more efficiently encode negative numbers than regular int32s. | int32 | int | int |
+| <a name="sint64" /> sint64 | Uses variable-length encoding. Signed int value. These more efficiently encode negative numbers than regular int64s. | int64 | long | int/long |
+| <a name="fixed32" /> fixed32 | Always four bytes. More efficient than uint32 if values are often greater than 2^28. | uint32 | int | int |
+| <a name="fixed64" /> fixed64 | Always eight bytes. More efficient than uint64 if values are often greater than 2^56. | uint64 | long | int/long |
+| <a name="sfixed32" /> sfixed32 | Always four bytes. | int32 | int | int |
+| <a name="sfixed64" /> sfixed64 | Always eight bytes. | int64 | long | int/long |
+| <a name="bool" /> bool |  | bool | boolean | boolean |
+| <a name="string" /> string | A string must always contain UTF-8 encoded or 7-bit ASCII text. | string | String | str/unicode |
+| <a name="bytes" /> bytes | May contain any arbitrary sequence of bytes. | string | ByteString | str |
+

proto-docs/subnet.md

@@ -3,65 +3,38 @@
 
 ## Table of Contents
 
-- [ape/types.proto](#ape/types.proto)
+- [subnet/types.proto](#subnet/types.proto)
 
   - Messages
-      - [Chain](#frostfs.v2.ape.Chain)
+    - [SubnetInfo](#neo.fs.v2.subnet.SubnetInfo)
-      - [ChainTarget](#frostfs.v2.ape.ChainTarget)
+    
-
 
 - [Scalar Value Types](#scalar-value-types)
 
 
 
-<a name="ape/types.proto"></a>
+<a name="subnet/types.proto"></a>
 <p align="right"><a href="#top">Top</a></p>
 
-## ape/types.proto
+## subnet/types.proto
 
 
  <!-- end services -->
 
 
-<a name="frostfs.v2.ape.Chain"></a>
+<a name="neo.fs.v2.subnet.SubnetInfo"></a>
 
-### Message Chain
+### Message SubnetInfo
-Chain is a chain of rules defined for a specific target.
+NeoFS subnetwork description
 
 
 | Field | Type | Label | Description |
 | ----- | ---- | ----- | ----------- |
-| raw | [bytes](#bytes) |  | Raw representation of a serizalized rule chain. |
+| id | [neo.fs.v2.refs.SubnetID](#neo.fs.v2.refs.SubnetID) |  | Unique subnet identifier. Missing ID is equivalent to zero (default subnetwork) ID. |
-
+| owner | [neo.fs.v2.refs.OwnerID](#neo.fs.v2.refs.OwnerID) |  | Identifier of the subnetwork owner |
-
-<a name="frostfs.v2.ape.ChainTarget"></a>
-
-### Message ChainTarget
-ChainTarget is an object to which a rule chain is defined.
-
-
-| Field | Type | Label | Description |
-| ----- | ---- | ----- | ----------- |
-| type | [TargetType](#frostfs.v2.ape.TargetType) |  |  |
-| name | [string](#string) |  |  |
 
  <!-- end messages -->
 
-
-<a name="frostfs.v2.ape.TargetType"></a>
-
-### TargetType
-TargetType is a type target to which a rule chain is defined.
-
-| Name | Number | Description |
-| ---- | ------ | ----------- |
-| UNDEFINED | 0 |  |
-| NAMESPACE | 1 |  |
-| CONTAINER | 2 |  |
-| USER | 3 |  |
-| GROUP | 4 |  |
-
-
  <!-- end enums -->
 
 
@@ -85,3 +58,4 @@ TargetType is a type target to which a rule chain is defined.
 | <a name="bool" /> bool |  | bool | boolean | boolean |
 | <a name="string" /> string | A string must always contain UTF-8 encoded or 7-bit ASCII text. | string | String | str/unicode |
 | <a name="bytes" /> bytes | May contain any arbitrary sequence of bytes. | string | ByteString | str |
+

proto-docs/tombstone.md

@@ -6,8 +6,8 @@
 - [tombstone/types.proto](#tombstone/types.proto)
 
   - Messages
-      - [Tombstone](#neo.fs.v2.tombstone.Tombstone)
+    - [Tombstone](#neo.fs.v2.tombstone.Tombstone)
-
+    
 
 - [Scalar Value Types](#scalar-value-types)
 
@@ -26,12 +26,12 @@
 
 ### Message Tombstone
 Tombstone keeps record of deleted objects for a few epochs until they are
-purged from the FrostFS network.
+purged from the NeoFS network.
 
 
 | Field | Type | Label | Description |
 | ----- | ---- | ----- | ----------- |
-| expiration_epoch | [uint64](#uint64) |  | Last FrostFS epoch number of the tombstone lifetime. It's set by the tombstone creator depending on the current FrostFS network settings. A tombstone object must have the same expiration epoch value in `__SYSTEM__EXPIRATION_EPOCH` (`__NEOFS__EXPIRATION_EPOCH` is deprecated) attribute. Otherwise, the tombstone will be rejected by a storage node. |
+| expiration_epoch | [uint64](#uint64) |  | Last NeoFS epoch number of the tombstone lifetime. It's set by the tombstone creator depending on the current NeoFS network settings. A tombstone object must have the same expiration epoch value in `__SYSTEM__EXPIRATION_EPOCH` (`__NEOFS__EXPIRATION_EPOCH` is deprecated) attribute. Otherwise, the tombstone will be rejected by a storage node. |
 | split_id | [bytes](#bytes) |  | 16 byte UUID used to identify the split object hierarchy parts. Must be unique inside a container. All objects participating in the split must have the same `split_id` value. |
 | members | [neo.fs.v2.refs.ObjectID](#neo.fs.v2.refs.ObjectID) | repeated | List of objects to be deleted. |
 
@@ -60,3 +60,4 @@ purged from the FrostFS network.
 | <a name="bool" /> bool |  | bool | boolean | boolean |
 | <a name="string" /> string | A string must always contain UTF-8 encoded or 7-bit ASCII text. | string | String | str/unicode |
 | <a name="bytes" /> bytes | May contain any arbitrary sequence of bytes. | string | ByteString | str |
+

refs/types.proto

@@ -5,25 +5,24 @@ package neo.fs.v2.refs;
 option go_package = "git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/refs/grpc;refs";
 option csharp_namespace = "Neo.FileStorage.API.Refs";
 
-// Objects in FrostFS are addressed by their ContainerID and ObjectID.
+// Objects in NeoFS are addressed by their ContainerID and ObjectID.
 //
 // String presentation of `Address` is a concatenation of string encoded
 // `ContainerID` and `ObjectID` delimited by '/' character.
 message Address {
   // Container identifier
-  ContainerID container_id = 1 [ json_name = "containerID" ];
+  ContainerID container_id = 1 [json_name = "containerID"];
   // Object identifier
-  ObjectID object_id = 2 [ json_name = "objectID" ];
+  ObjectID object_id = 2 [json_name = "objectID"];
 }
 
-// FrostFS Object unique identifier. Objects are immutable and
+// NeoFS Object unique identifier. Objects are immutable and content-addressed.
-// content-addressed. It means `ObjectID` will change if the `header` or the
+// It means `ObjectID` will change if the `header` or the `payload` changes.
-// `payload` changes.
 //
 // `ObjectID` is a 32 byte long
 // [SHA256](https://csrc.nist.gov/publications/detail/fips/180/4/final) hash of
-// the object's `header` field, which, in it's turn, contains the hash of the
+// the object's `header` field, which, in it's turn, contains the hash of the object's
-// object's payload.
+// payload.
 //
 // String presentation is a
 // [base58](https://tools.ietf.org/html/draft-msporny-base58-02) encoded string.
@@ -35,10 +34,10 @@ message Address {
 // with/without paddings are accepted.
 message ObjectID {
   // Object identifier in a binary format
-  bytes value = 1 [ json_name = "value" ];
+  bytes value = 1 [json_name = "value"];
 }
 
-// FrostFS container identifier. Container structures are immutable and
+// NeoFS container identifier. Container structures are immutable and
 // content-addressed.
 //
 // `ContainerID` is a 32 byte long
@@ -55,7 +54,7 @@ message ObjectID {
 // with/without paddings are accepted.
 message ContainerID {
   // Container identifier in a binary format.
-  bytes value = 1 [ json_name = "value" ];
+  bytes value = 1 [json_name = "value"];
 }
 
 // `OwnerID` is a derivative of a user's main public key. The transformation
@@ -75,34 +74,42 @@ message ContainerID {
 // with/without paddings are accepted.
 message OwnerID {
   // Identifier of the container owner in a binary format
-  bytes value = 1 [ json_name = "value" ];
+  bytes value = 1 [json_name = "value"];
+}
+
+// NeoFS subnetwork identifier.
+//
+// String representation of a value is base-10 integer.
+//
+// JSON representation is an object containing a single `value` number field.
+message SubnetID {
+  // 4-byte integer subnetwork identifier.
+  fixed32 value = 1 [json_name = "value"];
 }
 
 // API version used by a node.
 //
 // String presentation is a Semantic Versioning 2.0.0 compatible version string
-// with 'v' prefix. i.e. `vX.Y`, where `X` is the major number, `Y` is the minor
+// with 'v' prefix. i.e. `vX.Y`, where `X` is the major number, `Y` is the minor number.
-// number.
 message Version {
   // Major API version
-  uint32 major = 1 [ json_name = "major" ];
+  uint32 major = 1 [json_name = "major"];
 
   // Minor API version
-  uint32 minor = 2 [ json_name = "minor" ];
+  uint32 minor = 2 [json_name = "minor"];
 }
 
-// Signature of something in FrostFS.
+// Signature of something in NeoFS.
 message Signature {
   // Public key used for signing
-  bytes key = 1 [ json_name = "key" ];
+  bytes key = 1 [json_name = "key"];
   // Signature
-  bytes sign = 2 [ json_name = "signature" ];
+  bytes sign = 2 [json_name = "signature"];
   // Scheme contains digital signature scheme identifier
-  SignatureScheme scheme = 3 [ json_name = "scheme" ];
+  SignatureScheme scheme = 3 [json_name = "scheme"];
 }
 
-// Signature scheme describes digital signing scheme used for (key, signature)
+// Signature scheme describes digital signing scheme used for (key, signature) pair.
-// pair.
 enum SignatureScheme {
   // ECDSA with SHA-512 hashing (FIPS 186-3)
   ECDSA_SHA512 = 0;
@@ -118,9 +125,9 @@ enum SignatureScheme {
 // RFC 6979 signature.
 message SignatureRFC6979 {
   // Public key used for signing
-  bytes key = 1 [ json_name = "key" ];
+  bytes key = 1 [json_name = "key"];
   // Deterministic ECDSA with SHA-256 hashing
-  bytes sign = 2 [ json_name = "signature" ];
+  bytes sign = 2 [json_name = "signature"];
 }
 
 // Checksum algorithm type.
@@ -144,8 +151,8 @@ enum ChecksumType {
 //   Hex encoded string without `0x` prefix
 message Checksum {
   // Checksum algorithm type
-  ChecksumType type = 1 [ json_name = "type" ];
+  ChecksumType type = 1 [json_name = "type"];
 
   // Checksum itself
-  bytes sum = 2 [ json_name = "sum" ];
+  bytes sum = 2 [json_name = "sum"];
 }

reputation/service.proto

@@ -0,0 +1,128 @@
+syntax = "proto3";
+
+package neo.fs.v2.reputation;
+
+option go_package = "git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/reputation/grpc;reputation";
+option csharp_namespace = "Neo.FileStorage.API.Reputation";
+
+import "reputation/types.proto";
+import "session/types.proto";
+
+// `ReputationService` provides mechanisms for exchanging trust values with
+// other NeoFS nodes. Nodes rate each other's reputation based on how good they
+// process requests and set a trust level based on that rating. The trust
+// information is passed to the next nodes to check and aggregate unless the
+// final result is recorded.
+service ReputationService {
+    // Announce local client trust information to any node in NeoFS network.
+    //
+    // Statuses:
+    // - **OK** (0, SECTION_SUCCESS):
+    // local trust has been successfully announced;
+    // - Common failures (SECTION_FAILURE_COMMON).
+    rpc AnnounceLocalTrust (AnnounceLocalTrustRequest) returns (AnnounceLocalTrustResponse);
+
+    // Announce the intermediate result of the iterative algorithm for
+    // calculating the global reputation of the node in NeoFS network.
+    //
+    // Statuses:
+    // - **OK** (0, SECTION_SUCCESS):
+    // intermediate trust estimation has been successfully announced;
+    // - Common failures (SECTION_FAILURE_COMMON).
+    rpc AnnounceIntermediateResult (AnnounceIntermediateResultRequest) returns (AnnounceIntermediateResultResponse);
+}
+
+// Announce node's local trust information.
+message AnnounceLocalTrustRequest {
+    // Announce node's local trust information.
+    message Body {
+        // Trust assessment Epoch number
+        uint64 epoch = 1;
+
+        // List of normalized local trust values to other NeoFS nodes. The value
+        // is calculated according to EigenTrust++ algorithm and must be a
+        // floating point number in [0;1] range.
+        repeated Trust trusts = 2;
+    }
+
+    // Body of the request message.
+    Body body = 1;
+
+    // Carries request meta information. Header data is used only to regulate
+    // message transport and does not affect request execution.
+    neo.fs.v2.session.RequestMetaHeader meta_header = 2;
+
+    // Carries request verification information. This header is used to
+    // authenticate the nodes of the message route and check the correctness of
+    // transmission.
+    neo.fs.v2.session.RequestVerificationHeader verify_header = 3;
+}
+
+// Node's local trust information announcement response.
+message AnnounceLocalTrustResponse {
+    // Response to the node's local trust information announcement has an empty body
+    // because the trust exchange operation is asynchronous. If Trust information
+    // does not pass sanity checks, it is silently ignored.
+    message Body {
+    }
+
+    // Body of the response message.
+    Body body = 1;
+
+    // Carries response meta information. Header data is used only to regulate
+    // message transport and does not affect request execution.
+    neo.fs.v2.session.ResponseMetaHeader meta_header = 2;
+
+    // Carries response verification information. This header is used to
+    // authenticate the nodes of the message route and check the correctness of
+    // transmission.
+    neo.fs.v2.session.ResponseVerificationHeader verify_header = 3;
+}
+
+// Announce intermediate global trust information.
+message AnnounceIntermediateResultRequest {
+    // Announce intermediate global trust information.
+    message Body {
+        // Iteration execution Epoch number
+        uint64 epoch = 1;
+
+        // Iteration sequence number
+        uint32 iteration = 2;
+
+        // Current global trust value calculated at the specified iteration
+        PeerToPeerTrust trust = 3;
+    }
+
+    // Body of the request message.
+    Body body = 1;
+
+    // Carries request meta information. Header data is used only to regulate
+    // message transport and does not affect request execution.
+    neo.fs.v2.session.RequestMetaHeader meta_header = 2;
+
+    // Carries request verification information. This header is used to
+    // authenticate the nodes of the message route and check the correctness of
+    // transmission.
+    neo.fs.v2.session.RequestVerificationHeader verify_header = 3;
+}
+
+// Intermediate global trust information announcement response.
+message AnnounceIntermediateResultResponse {
+    // Response to the node's intermediate global trust information announcement has
+    // an empty body because the trust exchange operation is asynchronous. If
+    // Trust information does not pass sanity checks, it is silently ignored.
+    message Body {
+    }
+
+    // Body of the response message.
+    Body body = 1;
+
+    // Carries response meta information. Header data is used only to regulate
+    // message transport and does not affect request execution.
+    neo.fs.v2.session.ResponseMetaHeader meta_header = 2;
+
+    // Carries response verification information. This header is used to
+    // authenticate the nodes of the message route and check the correctness of
+    // transmission.
+    neo.fs.v2.session.ResponseVerificationHeader verify_header = 3;
+}

reputation/types.proto

@@ -0,0 +1,63 @@
+syntax = "proto3";
+
+package neo.fs.v2.reputation;
+
+option go_package = "git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/reputation/grpc;reputation";
+option csharp_namespace = "Neo.FileStorage.API.Reputation";
+
+import "refs/types.proto";
+
+// NeoFS unique peer identifier is a 33 byte long compressed public key of the
+// node, the same as the one stored in the network map.
+//
+// String presentation is a
+// [base58](https://tools.ietf.org/html/draft-msporny-base58-02) encoded string.
+//
+// JSON value will be data encoded as a string using standard base64
+// encoding with paddings. Either
+// [standard](https://tools.ietf.org/html/rfc4648#section-4) or
+// [URL-safe](https://tools.ietf.org/html/rfc4648#section-5) base64 encoding
+// with/without paddings are accepted.
+message PeerID {
+    // Peer node's public key
+    bytes public_key = 1 [json_name = "publicKey"];
+}
+
+// Trust level to a NeoFS network peer.
+message Trust {
+    // Identifier of the trusted peer
+    PeerID peer = 1 [json_name = "peer"];
+
+    // Trust level in [0:1] range
+    double value = 2 [json_name = "value"];
+}
+
+// Trust level of a peer to a peer.
+message PeerToPeerTrust {
+    // Identifier of the trusting peer
+    PeerID trusting_peer = 1 [json_name = "trustingPeer"];
+
+    // Trust level
+    Trust trust = 2 [json_name = "trust"];
+}
+
+// Global trust level to NeoFS node.
+message GlobalTrust {
+    // Message format version. Effectively, the version of API library used to create
+    // the message.
+    neo.fs.v2.refs.Version version = 1 [json_name = "version"];
+    // Message body structure.
+    message Body {
+      // Node manager ID
+      PeerID manager = 1 [json_name = "manager"];
+
+      // Global trust level
+      Trust trust = 2 [json_name = "trust"];
+    }
+
+    // Message body
+    Body body = 2 [json_name = "body"];
+
+    // Signature of the binary `body` field by the manager.
+    neo.fs.v2.refs.Signature signature = 3 [json_name = "signature"];
+}

session/service.proto

@@ -11,7 +11,7 @@ import "session/types.proto";
 // `SessionService` allows to establish a temporary trust relationship between
 // two peer nodes and generate a `SessionToken` as the proof of trust to be
 // attached in requests for further verification. Please see corresponding
-// section of FrostFS Technical Specification for details.
+// section of NeoFS Technical Specification for details.
 service SessionService {
   // Open a new session between two peers.
   //
@@ -19,7 +19,7 @@ service SessionService {
   // - **OK** (0, SECTION_SUCCESS):
   // session has been successfully opened;
   // - Common failures (SECTION_FAILURE_COMMON).
-  rpc Create(CreateRequest) returns (CreateResponse);
+  rpc Create (CreateRequest) returns (CreateResponse);
 }
 
 // Information necessary for opening a session.

session/types.proto

@@ -36,112 +36,109 @@ message ObjectSessionContext {
 
     // Refers to object.GetRangeHash RPC call
     RANGEHASH = 7;
-
-    // Refers to object.Patch RPC call
-    PATCH = 8;
   }
   // Type of request for which the token is issued
-  Verb verb = 1 [ json_name = "verb" ];
+  Verb verb = 1 [json_name = "verb"];
 
   // Carries objects involved in the object session.
   message Target {
     // Indicates which container the session is spread to. Field MUST be set
     // and correct.
-    refs.ContainerID container = 1 [ json_name = "container" ];
+    refs.ContainerID container = 1 [json_name = "container"];
 
     // Indicates which objects the session is spread to. Objects are expected
-    // to be stored in the FrostFS container referenced by `container` field.
+    // to be stored in the NeoFS container referenced by `container` field.
     // Each element MUST have correct format.
-    repeated refs.ObjectID objects = 2 [ json_name = "objects" ];
+    repeated refs.ObjectID objects = 2 [json_name = "objects"];
   }
   // Object session target. MUST be correctly formed and set. If `objects`
   // field is not empty, then the session applies only to these elements,
   // otherwise, to all objects from the specified container.
-  Target target = 2 [ json_name = "target" ];
+  Target target = 2 [json_name = "target"];
 }
 
 // Context information for Session Tokens related to ContainerService requests.
 message ContainerSessionContext {
-  // Container request verbs
+    // Container request verbs
-  enum Verb {
+    enum Verb {
-    // Unknown verb
+        // Unknown verb
-    VERB_UNSPECIFIED = 0;
+        VERB_UNSPECIFIED = 0;
 
-    // Refers to container.Put RPC call
+        // Refers to container.Put RPC call
-    PUT = 1;
+        PUT = 1;
 
-    // Refers to container.Delete RPC call
+        // Refers to container.Delete RPC call
-    DELETE = 2;
+        DELETE = 2;
 
-    // Refers to container.SetExtendedACL RPC call
+        // Refers to container.SetExtendedACL RPC call
-    SETEACL = 3;
+        SETEACL = 3;
-  }
+    }
-  // Type of request for which the token is issued
+    // Type of request for which the token is issued
-  Verb verb = 1 [ json_name = "verb" ];
+    Verb verb = 1 [json_name = "verb"];
 
-  // Spreads the action to all owner containers.
+    // Spreads the action to all owner containers.
-  // If set, container_id field is ignored.
+    // If set, container_id field is ignored.
-  bool wildcard = 2 [ json_name = "wildcard" ];
+    bool wildcard = 2 [json_name = "wildcard"];
 
-  // Particular container to which the action applies.
+    // Particular container to which the action applies.
-  // Ignored if wildcard flag is set.
+    // Ignored if wildcard flag is set.
-  refs.ContainerID container_id = 3 [ json_name = "containerID" ];
+    refs.ContainerID container_id = 3 [json_name = "containerID"];
 }
 
-// FrostFS Session Token.
+// NeoFS Session Token.
 message SessionToken {
   // Session Token body
   message Body {
     // Token identifier is a valid UUIDv4 in binary form
-    bytes id = 1 [ json_name = "id" ];
+    bytes id = 1 [json_name = "id"];
 
     // Identifier of the session initiator
-    neo.fs.v2.refs.OwnerID owner_id = 2 [ json_name = "ownerID" ];
+    neo.fs.v2.refs.OwnerID owner_id = 2 [json_name = "ownerID"];
 
     // Lifetime parameters of the token. Field names taken from rfc7519.
     message TokenLifetime {
       // Expiration Epoch
-      uint64 exp = 1 [ json_name = "exp" ];
+      uint64 exp = 1 [json_name = "exp"];
 
       // Not valid before Epoch
-      uint64 nbf = 2 [ json_name = "nbf" ];
+      uint64 nbf = 2 [json_name = "nbf"];
 
       // Issued at Epoch
-      uint64 iat = 3 [ json_name = "iat" ];
+      uint64 iat = 3 [json_name = "iat"];
     }
     // Lifetime of the session
-    TokenLifetime lifetime = 3 [ json_name = "lifetime" ];
+    TokenLifetime lifetime = 3 [json_name = "lifetime"];
 
     // Public key used in session
-    bytes session_key = 4 [ json_name = "sessionKey" ];
+    bytes session_key = 4 [json_name = "sessionKey"];
 
     // Session Context information
     oneof context {
       // ObjectService session context
-      ObjectSessionContext object = 5 [ json_name = "object" ];
+      ObjectSessionContext object = 5 [json_name = "object"];
 
       // ContainerService session context
-      ContainerSessionContext container = 6 [ json_name = "container" ];
+      ContainerSessionContext container = 6 [json_name = "container"];
     }
   }
   // Session Token contains the proof of trust between peers to be attached in
   // requests for further verification. Please see corresponding section of
-  // FrostFS Technical Specification for details.
+  // NeoFS Technical Specification for details.
-  Body body = 1 [ json_name = "body" ];
+  Body body = 1 [json_name = "body"];
 
   // Signature of `SessionToken` information
-  neo.fs.v2.refs.Signature signature = 2 [ json_name = "signature" ];
+  neo.fs.v2.refs.Signature signature = 2 [json_name = "signature"];
 }
 
-// Extended headers for Request/Response. They may contain any user-defined
+// Extended headers for Request/Response. They may contain any user-defined headers
-// headers to be interpreted on application level.
+// to be interpreted on application level.
 //
-// Key name must be a unique valid UTF-8 string. Value can't be empty. Requests
+// Key name must be a unique valid UTF-8 string. Value can't be empty. Requests or
-// or Responses with duplicated header names or headers with empty values will
+// Responses with duplicated header names or headers with empty values will be
-// be considered invalid.
+// considered invalid.
 //
-// There are some "well-known" headers starting with `__SYSTEM__` (`__NEOFS__`
+// There are some "well-known" headers starting with `__SYSTEM__` (`__NEOFS__` is deprecated) prefix that
-// is deprecated) prefix that affect system behaviour:
+// affect system behaviour:
 //
 // * [ __SYSTEM__NETMAP_EPOCH ] \
 //   (`__NEOFS__NETMAP_EPOCH` is deprecated) \
@@ -152,90 +149,88 @@ message SessionToken {
 //   (`__NEOFS__NETMAP_LOOKUP_DEPTH` is deprecated) \
 //   If object can't be found using current epoch's netmap, this header limits
 //   how many past epochs the node can look up through. The `value` is string
-//   encoded `uint64` in decimal presentation. If set to '0' or not set, only
+//   encoded `uint64` in decimal presentation. If set to '0' or not set, only the
-//   the current epoch will be used.
+//   current epoch will be used.
 message XHeader {
   // Key of the X-Header
-  string key = 1 [ json_name = "key" ];
+  string key = 1 [json_name = "key"];
 
   // Value of the X-Header
-  string value = 2 [ json_name = "value" ];
+  string value = 2 [json_name = "value"];
 }
 
 // Meta information attached to the request. When forwarded between peers,
 // request meta headers are folded in matryoshka style.
 message RequestMetaHeader {
   // Peer's API version used
-  neo.fs.v2.refs.Version version = 1 [ json_name = "version" ];
+  neo.fs.v2.refs.Version version = 1 [json_name = "version"];
 
   // Peer's local epoch number. Set to 0 if unknown.
-  uint64 epoch = 2 [ json_name = "epoch" ];
+  uint64 epoch = 2 [json_name = "epoch"];
 
   // Maximum number of intermediate nodes in the request route
-  uint32 ttl = 3 [ json_name = "ttl" ];
+  uint32 ttl = 3 [json_name = "ttl"];
 
   // Request X-Headers
-  repeated XHeader x_headers = 4 [ json_name = "xHeaders" ];
+  repeated XHeader x_headers = 4 [json_name = "xHeaders"];
 
   // Session token within which the request is sent
-  SessionToken session_token = 5 [ json_name = "sessionToken" ];
+  SessionToken session_token = 5 [json_name = "sessionToken"];
 
   // `BearerToken` with eACL overrides for the request
-  neo.fs.v2.acl.BearerToken bearer_token = 6 [ json_name = "bearerToken" ];
+  neo.fs.v2.acl.BearerToken bearer_token = 6 [json_name = "bearerToken"];
 
   // `RequestMetaHeader` of the origin request
-  RequestMetaHeader origin = 7 [ json_name = "origin" ];
+  RequestMetaHeader origin = 7 [json_name = "origin"];
 
-  // FrostFS network magic. Must match the value for the network
+  // NeoFS network magic. Must match the value for the network
   // that the server belongs to.
-  uint64 magic_number = 8 [ json_name = "magicNumber" ];
+  uint64 magic_number = 8 [json_name = "magicNumber"];
 }
 
 // Information about the response
 message ResponseMetaHeader {
   // Peer's API version used
-  neo.fs.v2.refs.Version version = 1 [ json_name = "version" ];
+  neo.fs.v2.refs.Version version = 1 [json_name = "version"];
 
   // Peer's local epoch number
-  uint64 epoch = 2 [ json_name = "epoch" ];
+  uint64 epoch = 2 [json_name = "epoch"];
 
   // Maximum number of intermediate nodes in the request route
-  uint32 ttl = 3 [ json_name = "ttl" ];
+  uint32 ttl = 3 [json_name = "ttl"];
 
   // Response X-Headers
-  repeated XHeader x_headers = 4 [ json_name = "xHeaders" ];
+  repeated XHeader x_headers = 4 [json_name = "xHeaders"];
 
   // `ResponseMetaHeader` of the origin request
-  ResponseMetaHeader origin = 5 [ json_name = "origin" ];
+  ResponseMetaHeader origin = 5 [json_name = "origin"];
 
   // Status return
-  neo.fs.v2.status.Status status = 6 [ json_name = "status" ];
+  neo.fs.v2.status.Status status = 6 [json_name = "status"];
 }
 
 // Verification info for the request signed by all intermediate nodes.
 message RequestVerificationHeader {
   // Request Body signature. Should be generated once by the request initiator.
-  neo.fs.v2.refs.Signature body_signature = 1 [ json_name = "bodySignature" ];
+  neo.fs.v2.refs.Signature body_signature = 1 [json_name = "bodySignature"];
   // Request Meta signature is added and signed by each intermediate node
-  neo.fs.v2.refs.Signature meta_signature = 2 [ json_name = "metaSignature" ];
+  neo.fs.v2.refs.Signature meta_signature = 2 [json_name = "metaSignature"];
   // Signature of previous hops
-  neo.fs.v2.refs.Signature origin_signature = 3
+  neo.fs.v2.refs.Signature origin_signature = 3 [json_name = "originSignature"];
-      [ json_name = "originSignature" ];
 
   // Chain of previous hops signatures
-  RequestVerificationHeader origin = 4 [ json_name = "origin" ];
+  RequestVerificationHeader origin = 4 [json_name = "origin"];
 }
 
 // Verification info for the response signed by all intermediate nodes
 message ResponseVerificationHeader {
   // Response Body signature. Should be generated once by an answering node.
-  neo.fs.v2.refs.Signature body_signature = 1 [ json_name = "bodySignature" ];
+  neo.fs.v2.refs.Signature body_signature = 1 [json_name = "bodySignature"];
   // Response Meta signature is added and signed by each intermediate node
-  neo.fs.v2.refs.Signature meta_signature = 2 [ json_name = "metaSignature" ];
+  neo.fs.v2.refs.Signature meta_signature = 2 [json_name = "metaSignature"];
   // Signature of previous hops
-  neo.fs.v2.refs.Signature origin_signature = 3
+  neo.fs.v2.refs.Signature origin_signature = 3 [json_name = "originSignature"];
-      [ json_name = "originSignature" ];
 
   // Chain of previous hops signatures
-  ResponseVerificationHeader origin = 4 [ json_name = "origin" ];
+  ResponseVerificationHeader origin = 4 [json_name = "origin"];
 }

status/types.proto

@@ -5,12 +5,12 @@ package neo.fs.v2.status;
 option go_package = "git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/status/grpc;status";
 option csharp_namespace = "Neo.FileStorage.API.Status";
 
-// Declares the general format of the status returns of the FrostFS RPC
+// Declares the general format of the status returns of the NeoFS RPC protocol.
-// protocol. Status is present in all response messages. Each RPC of FrostFS
+// Status is present in all response messages. Each RPC of NeoFS protocol
-// protocol describes the possible outcomes and details of the operation.
+// describes the possible outcomes and details of the operation.
 //
 // Each status is assigned a one-to-one numeric code. Any unique result of an
-// operation in FrostFS is unambiguously associated with the code value.
+// operation in NeoFS is unambiguously associated with the code value.
 //
 // Numerical set of codes is split into 1024-element sections. An enumeration
 // is defined for each section. Values can be referred to in the following ways:
@@ -33,130 +33,113 @@ option csharp_namespace = "Neo.FileStorage.API.Status";
 // should not expect) useful information in the message. Field `details`
 // should make the return more detailed.
 message Status {
-  // The status code
+    // The status code
-  uint32 code = 1;
+    uint32 code = 1;
 
-  // Developer-facing error message
+    // Developer-facing error message
-  string message = 2;
+    string message = 2;
 
-  // Return detail. It contains additional information that can be used to
+    // Return detail. It contains additional information that can be used to
-  // analyze the response. Each code defines a set of details that can be
+    // analyze the response. Each code defines a set of details that can be
-  // attached to a status. Client should not handle details that are not
+    // attached to a status. Client should not handle details that are not
-  // covered by the code.
+    // covered by the code.
-  message Detail {
+    message Detail {
-    // Detail ID. The identifier is required to determine the binary format
+        // Detail ID. The identifier is required to determine the binary format
-    // of the detail and how to decode it.
+        // of the detail and how to decode it.
-    uint32 id = 1;
+        uint32 id = 1;
 
-    // Binary status detail. Must follow the format associated with ID.
+        // Binary status detail. Must follow the format associated with ID.
-    // The possibility of missing a value must be explicitly allowed.
+        // The possibility of missing a value must be explicitly allowed.
-    bytes value = 2;
+        bytes value = 2;
-  }
+    }
 
-  // Data detailing the outcome of the operation. Must be unique by ID.
+    // Data detailing the outcome of the operation. Must be unique by ID.
-  repeated Detail details = 3;
+    repeated Detail details = 3;
 }
 
 // Section identifiers.
 enum Section {
-  // Successful return codes.
+    // Successful return codes.
-  SECTION_SUCCESS = 0;
+    SECTION_SUCCESS = 0;
 
-  // Failure codes regardless of the operation.
+    // Failure codes regardless of the operation.
-  SECTION_FAILURE_COMMON = 1;
+    SECTION_FAILURE_COMMON = 1;
 
-  // Object service-specific errors.
+    // Object service-specific errors.
-  SECTION_OBJECT = 2;
+    SECTION_OBJECT = 2;
 
-  // Container service-specific errors.
+    // Container service-specific errors.
-  SECTION_CONTAINER = 3;
+    SECTION_CONTAINER = 3;
 
-  // Session service-specific errors.
+    // Session service-specific errors.
-  SECTION_SESSION = 4;
+    SECTION_SESSION = 4;
-
-  // Session service-specific errors.
-  SECTION_APE_MANAGER = 5;
 }
 
-// Section of FrostFS successful return codes.
+// Section of NeoFS successful return codes.
 enum Success {
-  // [**0**] Default success. Not detailed.
+    // [**0**] Default success. Not detailed.
-  // If the server cannot match successful outcome to the code, it should
+    // If the server cannot match successful outcome to the code, it should
-  // use this code.
+    // use this code.
-  OK = 0;
+    OK = 0;
 }
 
 // Section of failed statuses independent of the operation.
 enum CommonFail {
-  // [**1024**] Internal server error, default failure. Not detailed.
+    // [**1024**] Internal server error, default failure. Not detailed.
-  // If the server cannot match failed outcome to the code, it should
+    // If the server cannot match failed outcome to the code, it should
-  // use this code.
+    // use this code.
-  INTERNAL = 0;
+    INTERNAL = 0;
 
-  // [**1025**] Wrong magic of the FrostFS network.
+    // [**1025**] Wrong magic of the NeoFS network.
-  // Details:
+    // Details:
-  //  - [**0**] Magic number of the served FrostFS network (big-endian 64-bit
+    //  - [**0**] Magic number of the served NeoFS network (big-endian 64-bit
-  //  unsigned integer).
+    //  unsigned integer).
-  WRONG_MAGIC_NUMBER = 1;
+    WRONG_MAGIC_NUMBER = 1;
 
-  // [**1026**] Signature verification failure.
+    // [**1026**] Signature verification failure.
-  SIGNATURE_VERIFICATION_FAIL = 2;
+    SIGNATURE_VERIFICATION_FAIL = 2;
 
-  // [**1027**] Node is under maintenance.
+    // [**1027**] Node is under maintenance.
-  NODE_UNDER_MAINTENANCE = 3;
+    NODE_UNDER_MAINTENANCE = 3;
-
-  // [**1028**] Invalid argument error. If the server fails on validation of a
-  // request parameter as the client sent it incorrectly, then this code should
-  // be used.
-  INVALID_ARGUMENT = 4;
 }
 
 // Section of statuses for object-related operations.
 enum Object {
-  // [**2048**] Access denied by ACL.
+    // [**2048**] Access denied by ACL.
-  // Details:
+    // Details:
-  // - [**0**] Human-readable description (UTF-8 encoded string).
+    // - [**0**] Human-readable description (UTF-8 encoded string).
-  ACCESS_DENIED = 0;
+    ACCESS_DENIED = 0;
 
-  // [**2049**] Object not found.
+    // [**2049**] Object not found.
-  OBJECT_NOT_FOUND = 1;
+    OBJECT_NOT_FOUND = 1;
 
-  // [**2050**] Operation rejected by the object lock.
+    // [**2050**] Operation rejected by the object lock.
-  LOCKED = 2;
+    LOCKED = 2;
 
-  // [**2051**] Locking an object with a non-REGULAR type rejected.
+    // [**2051**] Locking an object with a non-REGULAR type rejected.
-  LOCK_NON_REGULAR_OBJECT = 3;
+    LOCK_NON_REGULAR_OBJECT = 3;
 
-  // [**2052**] Object has been marked deleted.
+    // [**2052**] Object has been marked deleted.
-  OBJECT_ALREADY_REMOVED = 4;
+    OBJECT_ALREADY_REMOVED = 4;
 
-  // [**2053**] Invalid range has been requested for an object.
+    // [**2053**] Invalid range has been requested for an object.
-  OUT_OF_RANGE = 5;
+    OUT_OF_RANGE = 5;
 }
 
 // Section of statuses for container-related operations.
 enum Container {
-  // [**3072**] Container not found.
+    // [**3072**] Container not found.
-  CONTAINER_NOT_FOUND = 0;
+    CONTAINER_NOT_FOUND = 0;
 
-  // [**3073**] eACL table not found.
+    // [**3073**] eACL table not found.
-  EACL_NOT_FOUND = 1;
+    EACL_NOT_FOUND = 1;
-
-  // [**3074**] Container access denied.
-  CONTAINER_ACCESS_DENIED = 2;
 }
 
 // Section of statuses for session-related operations.
 enum Session {
-  // [**4096**] Token not found.
+    // [**4096**] Token not found.
-  TOKEN_NOT_FOUND = 0;
+    TOKEN_NOT_FOUND = 0;
 
-  // [**4097**] Token has expired.
+    // [**4097**] Token has expired.
-  TOKEN_EXPIRED = 1;
+    TOKEN_EXPIRED = 1;
-}
-
-// Section of status for APE manager related operations.
-enum APEManager {
-  // [**5120**] The operation is denied by APE manager.
-  APE_MANAGER_ACCESS_DENIED = 0;
 }

storagegroup/types.proto

@@ -0,0 +1,34 @@
+syntax = "proto3";
+
+package neo.fs.v2.storagegroup;
+
+option go_package = "git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/storagegroup/grpc;storagegroup";
+option csharp_namespace = "Neo.FileStorage.API.StorageGroup";
+
+import "refs/types.proto";
+
+// StorageGroup keeps verification information for Data Audit sessions. Objects
+// that require paid storage guarantees are gathered in `StorageGroups` with
+// additional information used for the proof of storage. `StorageGroup` only
+// contains objects from the same container.
+//
+// Being an object payload, StorageGroup may have expiration Epoch set with
+// `__SYSTEM__EXPIRATION_EPOCH` (`__NEOFS__EXPIRATION_EPOCH` is deprecated) well-known attribute. When expired, StorageGroup
+// will be ignored by InnerRing nodes during Data Audit cycles and will be
+// deleted by Storage Nodes.
+//
+message StorageGroup {
+  // Total size of the payloads of objects in the storage group
+  uint64 validation_data_size = 1 [json_name = "validationDataSize"];
+
+  // Homomorphic hash from the concatenation of the payloads of the storage
+  // group members. The order of concatenation is the same as the order of the
+  // members in the `members` field.
+  neo.fs.v2.refs.Checksum validation_hash = 2 [json_name = "validationHash"];
+
+  // DEPRECATED. Last NeoFS epoch number of the storage group lifetime
+  uint64 expiration_epoch = 3 [json_name = "expirationEpoch", deprecated = true];
+
+  // Strictly ordered list of storage group member objects. Members MUST be unique
+  repeated neo.fs.v2.refs.ObjectID members = 4 [json_name = "members"];
+}

subnet/types.proto

@@ -0,0 +1,18 @@
+syntax = "proto3";
+
+package neo.fs.v2.subnet;
+
+option go_package = "git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/subnet/grpc;subnet";
+option csharp_namespace = "Neo.FileStorage.API.Subnet";
+
+import "refs/types.proto";
+
+// NeoFS subnetwork description
+message SubnetInfo {
+    // Unique subnet identifier. Missing ID is
+    // equivalent to zero (default subnetwork) ID.
+    neo.fs.v2.refs.SubnetID id = 1;
+
+    // Identifier of the subnetwork owner
+    neo.fs.v2.refs.OwnerID owner = 2;
+}

tombstone/types.proto

@@ -8,20 +8,19 @@ option csharp_namespace = "Neo.FileStorage.API.Tombstone";
 import "refs/types.proto";
 
 // Tombstone keeps record of deleted objects for a few epochs until they are
-// purged from the FrostFS network.
+// purged from the NeoFS network.
 message Tombstone {
-  // Last FrostFS epoch number of the tombstone lifetime. It's set by the
+  // Last NeoFS epoch number of the tombstone lifetime. It's set by the tombstone
-  // tombstone creator depending on the current FrostFS network settings. A
+  // creator depending on the current NeoFS network settings. A tombstone object
-  // tombstone object must have the same expiration epoch value in
+  // must have the same expiration epoch value in `__SYSTEM__EXPIRATION_EPOCH` (`__NEOFS__EXPIRATION_EPOCH` is deprecated)
-  // `__SYSTEM__EXPIRATION_EPOCH` (`__NEOFS__EXPIRATION_EPOCH` is deprecated)
   // attribute. Otherwise, the tombstone will be rejected by a storage node.
-  uint64 expiration_epoch = 1 [ json_name = "expirationEpoch" ];
+  uint64 expiration_epoch = 1 [json_name = "expirationEpoch"];
 
   // 16 byte UUID used to identify the split object hierarchy parts. Must be
   // unique inside a container. All objects participating in the split must
   // have the same `split_id` value.
-  bytes split_id = 2 [ json_name = "splitID" ];
+  bytes split_id = 2 [json_name = "splitID"];
 
   // List of objects to be deleted.
-  repeated neo.fs.v2.refs.ObjectID members = 3 [ json_name = "members" ];
+  repeated neo.fs.v2.refs.ObjectID members = 3 [json_name = "members"];
 }