commit 65b8841c4c4fae92c497605b5cf92209d6d106fa
Author: Moritz Bitsch <moritz@h6t.eu>
Date:   Sat Dec 28 18:05:10 2024 +0100

    Initial import

diff --git a/.envrc b/.envrc
new file mode 100644
index 0000000..3550a30
--- /dev/null
+++ b/.envrc
@@ -0,0 +1 @@
+use flake
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..052de26
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,3 @@
+/target
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diff --git a/Cargo.lock b/Cargo.lock
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index 0000000..c4237d2
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+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "634fd46801442d760e09493a794c4f15db2d0cbb",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixos-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "flake-parts": "flake-parts",
+        "naersk": "naersk",
+        "nixpkgs": "nixpkgs_2"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}
diff --git a/flake.nix b/flake.nix
new file mode 100644
index 0000000..dfa1cb4
--- /dev/null
+++ b/flake.nix
@@ -0,0 +1,30 @@
+{
+  description = "Meshtastic ble OTA client";
+
+  inputs = {
+    flake-parts.url = "github:hercules-ci/flake-parts";
+    naersk.url = "github:nix-community/naersk";
+    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
+  };
+
+  outputs = inputs@{ flake-parts, naersk, self, ... }:
+    flake-parts.lib.mkFlake { inherit inputs; } {
+      systems = [ "x86_64-linux" "aarch64-linux" "aarch64-darwin" "x86_64-darwin" ];
+      perSystem = { pkgs, ... }:
+        let naersk' = pkgs.callPackage naersk { };
+        in rec {
+          packages.default = naersk'.buildPackage {
+            src = ./.;
+            nativeBuildInputs = with pkgs; [ rustPlatform.bindgenHook pkg-config ];
+            buildInputs = with pkgs; [ dbus ];
+          };
+          devShells.default = pkgs.mkShell {
+            inputsFrom = [ packages.default ];
+            buildInputs = with pkgs; [ dbus ];
+          };
+        };
+      flake = {
+      };
+    };
+}
+
diff --git a/src/main.rs b/src/main.rs
new file mode 100644
index 0000000..f5b56b7
--- /dev/null
+++ b/src/main.rs
@@ -0,0 +1,103 @@
+use btleplug::api::{Central, Manager as _, Peripheral as _, ScanFilter};
+use btleplug::platform::{Adapter, Manager, Peripheral};
+use clap::Parser;
+use futures_util::stream::StreamExt;
+use std::fs::File;
+use std::io::Read;
+use std::time::Duration;
+use tokio::time;
+use uuid::{uuid, Uuid};
+
+#[derive(Parser)]
+struct Args {
+    device_name: String,
+    ota: String,
+}
+
+const CHARACTERISTIC_TX_UUID: Uuid = uuid!("62ec0272-3ec5-11eb-b378-0242ac130003");
+const CHARACTERISTIC_OTA_UUID: Uuid = uuid!("62ec0272-3ec5-11eb-b378-0242ac130005");
+
+#[tokio::main]
+async fn main() -> anyhow::Result<()> {
+    let args = Args::parse();
+
+    let mut ota_file = Vec::new();
+    File::open(args.ota)?.read_to_end(&mut ota_file)?;
+
+    let manager = Manager::new().await.unwrap();
+
+    // get the first bluetooth adapter
+    let adapters = manager.adapters().await?;
+    let central = adapters.into_iter().next().unwrap();
+
+    // start scanning for devices
+    central.start_scan(ScanFilter::default()).await?;
+
+    // instead of waiting, you can use central.events() to get a stream which will
+    // notify you of new devices, for an example of that see examples/event_driven_discovery.rs
+    time::sleep(Duration::from_secs(2)).await;
+
+    // find the device we're interested in
+    let peripheral = find_peripheral(&central, &args.device_name).await.unwrap();
+
+    // connect to the device
+    peripheral.connect().await?;
+
+    // discover services and characteristics
+    peripheral.discover_services().await?;
+
+    // find the characteristic we want
+    let chars = peripheral.characteristics();
+    let write_char = chars
+        .iter()
+        .find(|c| c.uuid == CHARACTERISTIC_OTA_UUID)
+        .unwrap();
+
+    let notify_char = chars
+        .iter()
+        .find(|c| c.uuid == CHARACTERISTIC_TX_UUID)
+        .unwrap();
+
+    let data = format!("OTA_SIZE:{}", ota_file.len());
+    peripheral
+        .write(
+            write_char,
+            data.as_bytes(),
+            btleplug::api::WriteType::WithoutResponse,
+        )
+        .await?;
+
+    peripheral.subscribe(notify_char).await?;
+
+    let mut notification_stream = peripheral.notifications().await?;
+
+    for (id, chunk) in ota_file.chunks(512).enumerate() {
+        println!("writing chunk {} of {}", id, ota_file.len() / 512);
+        peripheral
+            .write(write_char, chunk, btleplug::api::WriteType::WithoutResponse)
+            .await?;
+
+        notification_stream.next().await;
+    }
+
+    Ok(())
+}
+
+async fn find_peripheral(central: &Adapter, device_name: &String) -> Option<Peripheral> {
+    println!("Looking for Peripheral {}...", device_name);
+
+    for p in central.peripherals().await.unwrap() {
+        let properties = p.properties().await.unwrap().unwrap();
+
+        let name = properties.local_name.unwrap_or("".into());
+
+        println!("Device detected: {}", name);
+
+        if name.contains(device_name) {
+            println!("Found {}!", device_name);
+            return Some(p);
+        }
+    }
+
+    None
+}