forked from TrueCloudLab/frostfs-api
204 lines
7 KiB
Markdown
204 lines
7 KiB
Markdown
# Protocol Documentation
|
|
<a name="top"></a>
|
|
|
|
## Table of Contents
|
|
|
|
- [refs/types.proto](#refs/types.proto)
|
|
|
|
- Messages
|
|
- [Address](#neo.fs.v2.refs.Address)
|
|
- [Checksum](#neo.fs.v2.refs.Checksum)
|
|
- [ContainerID](#neo.fs.v2.refs.ContainerID)
|
|
- [ObjectID](#neo.fs.v2.refs.ObjectID)
|
|
- [OwnerID](#neo.fs.v2.refs.OwnerID)
|
|
- [Signature](#neo.fs.v2.refs.Signature)
|
|
- [Version](#neo.fs.v2.refs.Version)
|
|
|
|
|
|
- [Scalar Value Types](#scalar-value-types)
|
|
|
|
|
|
|
|
<a name="refs/types.proto"></a>
|
|
<p align="right"><a href="#top">Top</a></p>
|
|
|
|
## refs/types.proto
|
|
|
|
|
|
<!-- end services -->
|
|
|
|
|
|
<a name="neo.fs.v2.refs.Address"></a>
|
|
|
|
### Message Address
|
|
Objects in NeoFS are addressed by their ContainerID and ObjectID.
|
|
|
|
String presentation of `Address` is the concatenation of string encoded
|
|
`ContainerID` and `ObjectID` delimited by '/' character.
|
|
|
|
|
|
| Field | Type | Label | Description |
|
|
| ----- | ---- | ----- | ----------- |
|
|
| container_id | [ContainerID](#neo.fs.v2.refs.ContainerID) | | Container identifier |
|
|
| object_id | [ObjectID](#neo.fs.v2.refs.ObjectID) | | Object identifier |
|
|
|
|
|
|
<a name="neo.fs.v2.refs.Checksum"></a>
|
|
|
|
### Message Checksum
|
|
Checksum message.
|
|
Depending on checksum algorithm type the string presentation may vary:
|
|
|
|
* TZ \
|
|
Hex encoded string without `0x` prefix
|
|
* SHA256 \
|
|
Hex encoded string without `0x` prefix
|
|
|
|
|
|
| Field | Type | Label | Description |
|
|
| ----- | ---- | ----- | ----------- |
|
|
| type | [ChecksumType](#neo.fs.v2.refs.ChecksumType) | | Checksum algorithm type |
|
|
| sum | [bytes](#bytes) | | Checksum itself |
|
|
|
|
|
|
<a name="neo.fs.v2.refs.ContainerID"></a>
|
|
|
|
### Message ContainerID
|
|
NeoFS container identifier. Container structures are immutable and
|
|
content-addressed.
|
|
|
|
`ContainerID` is a 32 byte long
|
|
[SHA256](https://csrc.nist.gov/publications/detail/fips/180/4/final) hash of
|
|
stable-marshalled container message.
|
|
|
|
String presentation is
|
|
[base58](https://tools.ietf.org/html/draft-msporny-base58-02) encoded string.
|
|
|
|
JSON value will be the 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 |
|
|
| ----- | ---- | ----- | ----------- |
|
|
| value | [bytes](#bytes) | | Container identifier in a binary format. |
|
|
|
|
|
|
<a name="neo.fs.v2.refs.ObjectID"></a>
|
|
|
|
### Message ObjectID
|
|
NeoFS Object unique identifier. Objects are immutable and content-addressed.
|
|
It means `ObjectID` will change if `header` or `payload` changes.
|
|
|
|
`ObjectID` is a 32 byte long
|
|
[SHA256](https://csrc.nist.gov/publications/detail/fips/180/4/final) hash of
|
|
object's `header` field, which, in it's turn, contains hash of object's
|
|
payload.
|
|
|
|
String presentation is
|
|
[base58](https://tools.ietf.org/html/draft-msporny-base58-02) encoded string.
|
|
|
|
JSON value will be the 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 |
|
|
| ----- | ---- | ----- | ----------- |
|
|
| value | [bytes](#bytes) | | Object identifier in a binary format |
|
|
|
|
|
|
<a name="neo.fs.v2.refs.OwnerID"></a>
|
|
|
|
### Message OwnerID
|
|
`OwnerID` is a derivative of a user's main public key. The transformation
|
|
algorithm is the same as for Neo3 wallet addresses. Neo3 wallet address can
|
|
be directly used as `OwnerID`.
|
|
|
|
`OwnerID` is a 25 bytes sequence starting with Neo version prefix byte
|
|
followed by 20 bytes of ScrptHash and 4 bytes of checksum.
|
|
|
|
String presentation is [Base58
|
|
Check](https://en.bitcoin.it/wiki/Base58Check_encoding) Encoded string.
|
|
|
|
JSON value will be the 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 |
|
|
| ----- | ---- | ----- | ----------- |
|
|
| value | [bytes](#bytes) | | Identifier of the container owner in a binary format |
|
|
|
|
|
|
<a name="neo.fs.v2.refs.Signature"></a>
|
|
|
|
### Message Signature
|
|
Signature of something in NeoFS.
|
|
|
|
|
|
| Field | Type | Label | Description |
|
|
| ----- | ---- | ----- | ----------- |
|
|
| key | [bytes](#bytes) | | Public key used for signing |
|
|
| sign | [bytes](#bytes) | | Signature |
|
|
|
|
|
|
<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` - major number, `Y` - minor number.
|
|
|
|
|
|
| Field | Type | Label | Description |
|
|
| ----- | ---- | ----- | ----------- |
|
|
| major | [uint32](#uint32) | | Major API version |
|
|
| minor | [uint32](#uint32) | | Minor API version |
|
|
|
|
<!-- end messages -->
|
|
|
|
|
|
<a name="neo.fs.v2.refs.ChecksumType"></a>
|
|
|
|
### ChecksumType
|
|
Checksum algorithm type.
|
|
|
|
| Name | Number | Description |
|
|
| ---- | ------ | ----------- |
|
|
| CHECKSUM_TYPE_UNSPECIFIED | 0 | Unknown. Not used |
|
|
| TZ | 1 | Tillich-Zemor homomorphic hash function |
|
|
| SHA256 | 2 | SHA-256 |
|
|
|
|
|
|
<!-- 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 |
|
|
|