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Matthew Salerno 1 year ago
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README.md
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@ -2,26 +2,26 @@ WireNix is a Nix Flake designed to make creation of Wireguard mesh networks
easier. The simplist and most likely layout is a full mesh network, but Wirenix
can also support arbitrary graph topologies.
# Reading the README
Due to Nix's dynamic typing, I have opted to define all my ACL configurations
in psuedo-typescript to make options more legible. I have chosen typescript
Due to Nix's dynamic typing, I have opted to define configurations in
psuedo-typescript to make options more legible. I have chosen typescript
because it looks somewhat like JSON and is easy to understand. Examples will
still be given in Nix EL. Function signatures will still follow the traditional
Haskell-like function signatures seen throughout nix projects.
still be given in Nix EL.
You can start by reading the [ACL Configuration](ACL Configuration) section,
then reading [Quick Start](Quick Start) section for how to configure your
machines. Other sections exist to provide helpful context and advanced usage,
but should not be necessary for a working setup.
You can start by reading the [[ACL Configuration]] section, then reading
[[Quick Start]] section for how to configure your machines. Other sections
exist to provide helpful context and advanced usage, but should not be
necessary for a working setup.
Wirenix assumes a flakes setup, that's what I use. Maybe it works without
flakes, maybe not. I'm not familiar enough with the non-flakes landscape
to provide support. I am open to making simple changes to make using this
project without flakes easier if anyone has suggestions or wants to submit
project work without flakes if anyone has suggestions or wants to submit
a patch.
# ACL Configuration
The ACL is a nix attrset designed to be represented in JSON for easy importing
and potential use outside of the nix ecosystem.
and potential use outside of the nix ecosystem. The vast majority of all your
wirenix configuration will end up in here, with a few exceptions noted later.
## top level acl:
```typescript
@ -31,7 +31,7 @@ type ACL = {
groups: group[];
peers: peer[];
connections: connection[];
extraArgs?: any; // goes to intermediate config
extraArgs?: attrset; // goes to intermediate config
};
```
@ -46,7 +46,8 @@ make your own integrations.
type subnet = {
name: str;
endpoints?: endpoint[];
extraArgs?: any; // goes to intermediate config subnet
presharedKeyFile?: str;
extraArgs?: attrset; // goes to intermediate config subnet
};
```
@ -55,7 +56,7 @@ type subnet = {
type group = {
name: str;
endpoints?: endpoint[];
extraArgs?: any; // goes to intermediate config group
extraArgs?: attrset; // goes to intermediate config group
};
```
@ -66,19 +67,19 @@ type peer = {
subnets: [subnetName: str]: {
listenPort: int;
ipAddresses?: str[];
extraArgs?: any; // goes to intermediate config subnetConnection
extraArgs?: attrset; // goes to intermediate config subnetConnection
};
publicKey: str;
privateKeyFile: str;
groups?: str[];
endpoints?: endpoint[];
extraArgs?: any; // goes to intermediate config peer
extraArgs?: attrset; // goes to intermediate config peer
};
```
`[subnetName: str]: {...}` means `subnets` is an object (attrset) with
string typed keys, and values that follows the typing of the nested object
`...`.
"`[subnetName: str]: {...}`" means "`subnets`" is an attrset with
string typed keys, and values that follow the typing of the nested object
"`...`".
## Connection:
```typescript
@ -86,7 +87,7 @@ type connection = {
a: filter;
b: filter;
subnets: str[];
extraArgs?: any; // merged into intermediate config peerConnection
extraArgs?: attrset; // merged into intermediate config peerConnection
};
```
@ -106,7 +107,7 @@ type endpoint = {
persistentKeepalive?: int;
dynamicEndpointRefreshSeconds?: int;
dynamicEndpointRefreshRestartSeconds?: int;
extraArgs?: any; // merged to intermediate config peerConnection.endpoin
extraArgs?: attrset; // merged to intermediate config peerConnection.endpoin
};
```
@ -154,43 +155,44 @@ pass data into user defined Configuration Modules. Most users can ignore
1. Make your ACL according to the [ACL Configuration]](ACL Configuration) section.
You can look in the `examples/acl` folder for examples.
2. Include the module in your flake config:
```nix
...
inputs.wirenix.url = "sourcehut:~msalerno/wirenix";
outputs = { self, nixpkgs, wirenix }: {
```nix
...
inputs.wirenix.url = "sourcehut:~msalerno/wirenix";
outputs = { self, nixpkgs, wirenix }: {
nixosConfigurations = {
example = nixpkgs.lib.nixosSystem rec {
system = "x86_64-linux";
modules = [
./machines/example.nix
wirenix.nixosModules.default
]
system = "x86_64-linux";
modules = [
./machines/example.nix
wirenix.nixosModules.default
]
};
};
};
```
```
3. Configure wirenix in your nixosConfiguration (`./machines/example.nix` in this
case):
```nix
wirenix = {
enable = true;
peerName = "example" # defaults to hostname otherwise
configurer = "static" # defaults to "static", could also be "networkd"
keyProviders = ["acl"]; # could also be ["agenix-rekey"] or ["acl" "agenix-rekey"]
# secretsDir = ../../secrets; # only if you're using agenix-rekey
aclConfig = import ../../acl.nix;
};
```
```nix
wirenix = {
enable = true;
peerName = "example" # defaults to hostname otherwise
configurer = "static" # defaults to "static", could also be "networkd"
keyProviders = ["acl"]; # could also be ["agenix-rekey"] or ["acl" "agenix-rekey"]
# secretsDir = ../../secrets; # only if you're using agenix-rekey
aclConfig = import ../../acl.nix;
};
```
4. Profit
# Architecture
WireNix consists of 5 main components:
1. The shared ACL Configuration
2. The Key Providers
3. Parser Modules
4. The intermediate Configuration
5. Configuration Modules
2. Parser Modules
3. The intermediate Configuration
4. Configuration Modules
5. The Key Providers
The goal of splitting WireNix into modules is both for my own sanity when
developing, and to make it hackable without requiring users to make their own
@ -204,12 +206,10 @@ essentially rewriting this flake however you see fit, all without making a fork
scratch).
## ACL
The shared ACL configuration should describe the full network topology. It does
not need to consist only of NixOS peers (although at the moment, other peers
will have to be configured manually to conform to the expected settings). The
details of this file are documented in the `Top Level ACL` section.
You can make your own ACL configuration format so long as you keep the
`version` field and set it to some unique name.
The shared ACL configuration describes the full network topology. It does not
need to consist only of NixOS peers The details of this file are documented in
the [[Top Level ACL]] section. You can make your own ACL configuration format so
long as you keep the "`version`" field and set it to some unique name.
## Parser Modules
Parser Modules are responsible for taking an ACL and converting it to the
@ -241,16 +241,15 @@ version = "myParser";
## Intermediate Configuration
The Intermediate Configuration is a recursive attrset that is more suited for
being used in a NixOS configuration than the ACL Configuration.
Unlike the ACL, the intermediate configuration is more verbose, easier to
traverse, repeats itself often, and is recursive. This allows cross version
being used in a NixOS configuration than the ACL Configuration. Unlike the ACL,
the intermediate configuration is more verbose, easier to traverse, contains
duplicate information, and is recursive. This allows cross version
compatibility so long as the intermediate configuration doesn't change. Any
changes will likely only be the addition of optional features that do not
interfere with existing intermediate configuration use, though at this stage
there are no guarentees.
It can be assumed that all types mentioned are types for the intermediate
connection and NOT the related to types in the ACL. The intermediate
configuration has the following structure:
Take note while reading that certain structures may be similar to the ACL,
but they are not necessarily the same as their ACL counterparts.
### Root Structure
```typescript
@ -258,6 +257,7 @@ type intermediateConfiguration = {
peers: {[peerName: str]: peer};
subnets: {[subnetName: str]: subnet};
groups: {[groupName: str]: group};
extraArgs?: attrset;
}
```
@ -266,10 +266,10 @@ type intermediateConfiguration = {
```typescript
type peer = {
subnetConnections: {[subnetName: str]: subnetConnection};
groups: {[groupName: str]: group}
publicKey: str;
privateKeyFile: str;
extraArgs?: any;
groups?: {[groupName: str]: group}
extraArgs?: attrset;
};
```
@ -279,7 +279,8 @@ type peer = {
```typescript
type subnet = {
peers: {[peerName: str]: peer};
extraArgs?: any;
presharedKeyFile?: str;
extraArgs?: attrset;
};
```
@ -288,30 +289,30 @@ type subnet = {
```typescript
type group = {
peers: {[peerName: str]: peer};
extraArgs?: any;
extraArgs?: attrset;
};
```
### Peer Connection
### Subnet Connection
```typescript
type peerConnection = {
peer: peer;
type subnetConnection = {
subnet: subnet;
ipAddresses: str[];
endpoint: endpoint;
extraArgs?: any;
listenPort: int;
peerConnections: {[peerName: str]: peerConnection};
extraArgs?: attrset;
};
```
### Subnet Connection
### Peer Connection
```typescript
type subnetConnection = {
subnet: subnet;
type peerConnection = {
peer: peer;
ipAddresses: str[];
listenPort: int;
peerConnections: {[peerName: str]: peerConnection};
extraArgs?: any;
endpoint: endpoint;
extraArgs?: attrset;
};
```
@ -324,14 +325,10 @@ type endpoint = {
persistentKeepalive?: int;
dynamicEndpointRefreshSeconds?: int;
dynamicEndpointRefreshRestartSeconds?: int;
extraArgs?: any;
extraArgs?: attrset;
};
```
Unlike the ACL, this structure is recursive, resembling an arbitrary graph.
This graph can be traversed back and forth in circles until you run out of
stack space.
## Configuration Modules
Configuration Modules take the Key provider list and Intermediate Configuration
to produce NixOS configurations. By default, there exist configuration modules
@ -381,7 +378,7 @@ wirenix.keyProviders = ["myKeyProvider"];
# Integrations:
By default, WireNix supports setting wireguard keypairs with
[agenix-rekey](https://github.com/oddlama/agenix-rekey).
WireNix also supports networkd, network manager, and the nixos static network
WireNix also supports using either networkd or the nixos static network
configuration (default).
Using networkd:

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