pushing rough

README.md

@@ -1,2 +1,64 @@
-# multiprotocol
+# multiprotocol: Domain Specific Protocol Extensions for Multiaddr
-Self-describing protocol identifiers
+
+**:warning: THIS IS STILL AN EARLY DRAFT :warning:**
+
+> Multiformat inspired self-describing protocol identifiers
+
+In this specification we describe a simple method for nodes to advertise their capabilities. 
+The protocol is heavily inspired by [multiformats](https://multiformats.io/) and provides both a human and machine readable representation.
+
+The goal is to provide node identification beyond the [multiaddr](https://github.com/multiformats/multiaddr) 
+connection info which can be appended to the end of the address.
+
+This repository contains the [multiprotocol definition](./multiprotocol.csv) used by [vac](https://vac.dev), 
+the [go implementation](https://github.com/vacp2p/go-multiprotocol) however is generic and therefore anyone can implement their own table.
+
+The table is represented using the following CSV format:
+
+```csv
+code, size, name, comment
+1,    0,    vac,  namespace
+2,    V,    waku,
+```
+
+| field       | description                                                                                                                     |
+| ----------- | ------------------------------------------------------------------------------------------------------------------------------- |
+| **code**    | This field contains the code identifying the key.                                                                               |
+| **size**    | This field identifies the expected keys size, it can be any number or `V`, indicating that the value itself is length prefixed. |
+| **name**    | The human readable name of the field.                                                                                           |
+| **comment** | Any developer related comments for the field.                                                                                   |
+
+**Namespaces should be generic to not cause overlap, vac uses `42`**
+
+Human-readable:
+
+```
+/<namespace>/<protocol>/<version>(/<capability>/<version>|<capability>)+
+```
+
+Examples:
+
+```
+/vac/waku/2
+/vac/waku/2/relay/2
+/vac/waku/2/store/1
+```
+
+Machine-readable:
+
+```
+<namespace uvarint><protocol uvarint><version uvarint>(<protoCode uvarint><value []byte>)+
+```
+
+Examples:
+
+```
+0x42 0x2 0x2 0x0 0x2
+```
+
+
+With multiaddr:
+
+```
+/ip4/127.0.0.1/tcp/9000/vac/waku/0.2/relay/0.2
+```

multiprotocol.csv

@@ -0,0 +1,5 @@
+code, size, name, comment
+42,   0,    vac,  namespace
+2,    V,    waku,
+3,    V,    store, a node will store messages.
+4,    V,    relay, a node will relay messages.