Don't add device to config file until user confirms; Add rustler

This commit is contained in:
Jamil Bou Kheir
2021-01-17 10:40:09 -08:00
parent 4979c4ee61
commit 61bdd35d2f
13 changed files with 706 additions and 35 deletions

7
.gitignore vendored
View File

@@ -1,3 +1,10 @@
# Built NIFs / libraries
/apps/fg_vpn/priv/native/
/apps/fg_vpn/native/fgvpn_server/target/
# These are backup files generated by rustfmt
/apps/fg_vpn/native/fgvpn_server/**/*.rs.bk
# macOS cruft
.DS_Store

View File

@@ -5,6 +5,7 @@ defmodule FgHttpWeb.DeviceController do
use FgHttpWeb, :controller
alias FgHttp.{Devices, Devices.Device}
alias Phoenix.PubSub
plug FgHttpWeb.Plugs.SessionLoader
@@ -29,7 +30,8 @@ defmodule FgHttpWeb.DeviceController do
all_params = Map.merge(device_params, our_params)
case Devices.create_device(all_params) do
{:ok, _device} ->
{:ok, device} ->
PubSub.broadcast(:fg_http_pub_sub, "config", {:commit_device, device.public_key})
redirect(conn, to: Routes.device_path(conn, :index))
{:error, %Ecto.Changeset{} = changeset} ->

View File

@@ -25,7 +25,7 @@ defmodule FgHttpWeb.NewDeviceLive do
end
# Fire off event to generate private key, psk, and add device to config
PubSub.broadcast(:fg_http_pub_sub, "config", {:add_device, self()})
PubSub.broadcast(:fg_http_pub_sub, "config", {:new_device})
device = %Device{user_id: user_id}
@@ -36,22 +36,17 @@ defmodule FgHttpWeb.NewDeviceLive do
Handles device added.
"""
@impl true
def handle_info({:peer_added, caller_pid, privkey, pubkey, server_pubkey}, socket) do
if caller_pid == self() do
device = %{
socket.assigns.device
| public_key: pubkey,
private_key: privkey,
server_pubkey: server_pubkey,
last_ip: "127.0.0.1",
name: "Device #{pubkey}"
}
def handle_info({:peer_generated, privkey, pubkey, server_pubkey}, socket) do
device = %{
socket.assigns.device
| public_key: pubkey,
private_key: privkey,
server_pubkey: server_pubkey,
last_ip: "127.0.0.1",
name: "Device #{pubkey}"
}
# Updates @device in the LiveView and causes re-render if the intended target is this pid
{:noreply, assign(socket, :device, device)}
else
# Noop, let the correct pid handle this broadcast
{:noreply, socket}
end
# Updates @device in the LiveView and causes re-render if the intended target is this pid
{:noreply, assign(socket, :device, device)}
end
end

View File

@@ -9,6 +9,7 @@
<%= link "Back to Devices", to: Routes.device_path(@socket, :index) %>
</p>
<% else %>
<hr>
<div class="columns">
<div class="column is-6">
<h6 class="is-6 title">
@@ -34,20 +35,16 @@ Endpoint = <%= Application.fetch_env!(:fg_http, :vpn_endpoint) %>
<canvas id="qr-canvas"></canvas>
</div>
</div>
<div class="columns">
<div class="column is-12">
<h6 class="is-6 title">
Note: Save this information somewhere safe! The private key will not be shown again.
</h6>
</div>
</div>
<hr>
<div phx-hook="QrEncode" class="columns">
<div class="column is-6">
<h4 class="subtitle is-4">Device Added!</h4>
<dl class="content">
<dt>Device Public Key:</dt>
<dd><strong><%= @device.public_key %></strong></dd>
<dt>Device IP:</dt>
<dd><strong><%= @device.last_ip %></strong></dd>
</dl>
<div class="level">
<div class="level-left">
<%=

View File

@@ -26,22 +26,40 @@ defmodule FgVpn.Config do
end
@impl true
def handle_info({:add_device, caller_pid}, config) do
def handle_info({:new_device}, config) do
{_server_privkey, server_pubkey} = read_privkey()
{privkey, pubkey} = CLI.genkey()
new_peers = [pubkey | config[:peers]]
new_config = %{config | peers: new_peers}
write!(new_config)
uncommitted_peers = MapSet.put(config[:uncommitted_peers], pubkey)
new_config = Map.put(config, :uncommitted_peers, uncommitted_peers)
PubSub.broadcast(
:fg_http_pub_sub,
"view",
{:peer_added, caller_pid, privkey, pubkey, server_pubkey}
{:peer_generated, privkey, pubkey, server_pubkey}
)
{:noreply, new_config}
end
@impl true
def handle_info({:commit_device, pubkey}, config) do
new_config =
if MapSet.member?(config[:uncommitted_peers], pubkey) do
new_peers = MapSet.put(config[:peers], pubkey)
new_uncommitted_peers = MapSet.delete(config[:uncommitted_peers], pubkey)
config
|> Map.put(:uncommitted_peers, new_uncommitted_peers)
|> Map.put(:peers, new_peers)
else
config
end
write!(new_config)
{:noreply, new_config}
end
@impl true
def handle_info({:remove_device, pubkey}, config) do
new_peers = List.delete(config[:peers], pubkey)
@@ -96,6 +114,7 @@ defmodule FgVpn.Config do
~r/PublicKey = (.*)/
|> Regex.scan(config_str)
|> Enum.map(fn match_list -> List.last(match_list) end)
|> MapSet.new()
end
end
@@ -168,7 +187,8 @@ defmodule FgVpn.Config do
config = %{
default_int: CLI.default_interface(),
privkey: privkey,
peers: read_peers() || []
peers: read_peers() || MapSet.new([]),
uncommitted_peers: MapSet.new([])
}
write!(config)

View File

@@ -0,0 +1,9 @@
defmodule FgVpn.Server do
@moduledoc """
Module to load boringtun lib as a server
"""
use Rustler, otp_app: :fg_vpn, crate: :fgvpn_server
def add(_arg1, _arg2), do: :erlang.nif_error(:nif_not_loaded)
end

View File

@@ -6,12 +6,19 @@ defmodule FgVpn.MixProject do
app: :fg_vpn,
version: "0.1.7",
build_path: "../../_build",
compilers: [:rustler] ++ Mix.compilers(),
config_path: "../../config/config.exs",
deps_path: "../../deps",
lockfile: "../../mix.lock",
elixir: "~> 1.11",
start_permanent: Mix.env() == :prod,
test_coverage: [tool: ExCoveralls],
rustler_crates: [
fgvpn_server: [
cargo: {:rustup, "nightly"},
mode: :release
]
],
preferred_cli_env: [
coveralls: :test,
"coveralls.detail": :test,
@@ -34,6 +41,7 @@ defmodule FgVpn.MixProject do
defp deps do
[
{:fg_http, in_umbrella: true},
{:rustler, "~> 0.22.0-rc.0"},
{:phoenix_pubsub, "~> 2.0"},
{:credo, "~> 1.4", only: [:dev, :test], runtime: false},
{:excoveralls, "~> 0.13", only: :test}

View File

@@ -0,0 +1,5 @@
[target.x86_64-apple-darwin]
rustflags = [
"-C", "link-arg=-undefined",
"-C", "link-arg=dynamic_lookup",
]

584
apps/fg_vpn/native/fgvpn_server/Cargo.lock generated Normal file
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@@ -0,0 +1,584 @@
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View File

@@ -0,0 +1,14 @@
[package]
name = "fgvpn_server"
version = "0.1.0"
authors = []
edition = "2018"
[lib]
name = "fgvpn_server"
path = "src/lib.rs"
crate-type = ["dylib"]
[dependencies]
rustler = "0.22.0-rc.0"
boringtun = "0.3.0"

View File

@@ -0,0 +1,22 @@
# NIF for Elixir.FgVpn.Server
## To build the NIF module:
- Make sure your projects `mix.exs` has the `:rustler` compiler listed in the `project` function: `compilers: [:rustler] ++ Mix.compilers()` If there already is a `:compilers` list, you should append `:rustler` to it.
- Add your crate to the `rustler_crates` attribute in the `project function. [See here](https://hexdocs.pm/rustler/basics.html#crate-configuration).
- Your NIF will now build along with your project.
## To load the NIF:
```elixir
defmodule FgVpn.Server do
use Rustler, otp_app: :fg_vpn, crate: "fgvpn_server"
# When your NIF is loaded, it will override this function.
def add(_a, _b), do: :erlang.nif_error(:nif_not_loaded)
end
```
## Examples
[This](https://github.com/hansihe/NifIo) is a complete example of a NIF written in Rust.

View File

@@ -0,0 +1,6 @@
#[rustler::nif]
fn add(a: i64, b: i64) -> i64 {
a + b
}
rustler::init!("Elixir.FgVpn.Server", [add]);

View File

@@ -42,8 +42,10 @@
"plug_crypto": {:hex, :plug_crypto, "1.2.0", "1cb20793aa63a6c619dd18bb33d7a3aa94818e5fd39ad357051a67f26dfa2df6", [:mix], [], "hexpm", "a48b538ae8bf381ffac344520755f3007cc10bd8e90b240af98ea29b69683fc2"},
"postgrex": {:hex, :postgrex, "0.15.7", "724410acd48abac529d0faa6c2a379fb8ae2088e31247687b16cacc0e0883372", [:mix], [{:connection, "~> 1.0", [hex: :connection, repo: "hexpm", optional: false]}, {:db_connection, "~> 2.1", [hex: :db_connection, repo: "hexpm", optional: false]}, {:decimal, "~> 1.5 or ~> 2.0", [hex: :decimal, repo: "hexpm", optional: false]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: true]}], "hexpm", "88310c010ff047cecd73d5ceca1d99205e4b1ab1b9abfdab7e00f5c9d20ef8f9"},
"ranch": {:hex, :ranch, "1.7.1", "6b1fab51b49196860b733a49c07604465a47bdb78aa10c1c16a3d199f7f8c881", [:rebar3], [], "hexpm", "451d8527787df716d99dc36162fca05934915db0b6141bbdac2ea8d3c7afc7d7"},
"rustler": {:hex, :rustler, "0.22.0-rc.0", "d8a3d72862874d6c5a5c6421617911e8a2822a310b6e6d3ceb16803c2651350f", [:mix], [{:toml, "~> 0.5.2", [hex: :toml, repo: "hexpm", optional: false]}], "hexpm", "0548ae8fd203bbd3c5ba689e60d827a1991e12cde599fb4c03d4cf56b00a3352"},
"ssl_verify_fun": {:hex, :ssl_verify_fun, "1.1.6", "cf344f5692c82d2cd7554f5ec8fd961548d4fd09e7d22f5b62482e5aeaebd4b0", [:make, :mix, :rebar3], [], "hexpm", "bdb0d2471f453c88ff3908e7686f86f9be327d065cc1ec16fa4540197ea04680"},
"telemetry": {:hex, :telemetry, "0.4.2", "2808c992455e08d6177322f14d3bdb6b625fbcfd233a73505870d8738a2f4599", [:rebar3], [], "hexpm", "2d1419bd9dda6a206d7b5852179511722e2b18812310d304620c7bd92a13fcef"},
"toml": {:hex, :toml, "0.5.2", "e471388a8726d1ce51a6b32f864b8228a1eb8edc907a0edf2bb50eab9321b526", [:mix], [], "hexpm", "f1e3dabef71fb510d015fad18c0e05e7c57281001141504c6b69d94e99750a07"},
"unicode_util_compat": {:hex, :unicode_util_compat, "0.7.0", "bc84380c9ab48177092f43ac89e4dfa2c6d62b40b8bd132b1059ecc7232f9a78", [:rebar3], [], "hexpm", "25eee6d67df61960cf6a794239566599b09e17e668d3700247bc498638152521"},
"yamerl": {:hex, :yamerl, "0.8.0", "8214cfe16bbabe5d1d6c14a14aea11c784b9a21903dd6a7c74f8ce180adae5c7", [:rebar3], [], "hexpm", "010634477bf9c208a0767dcca89116c2442cf0b5e87f9c870f85cd1c3e0c2aab"},
"yaml_elixir": {:hex, :yaml_elixir, "2.5.0", "45de762be6d75fa5a8b5f44ddff8c30f64c26526eab5b1d72e36d616007b7796", [:mix], [{:yamerl, "~> 0.7", [hex: :yamerl, repo: "hexpm", optional: false]}], "hexpm", "80fe4e43f05582f2a90f2dcd73fc6171fbd65f2e6836f71fe4ce2154ef358c36"},