chore(code): move crates/sprout to crates/boot and name it edera-sprout-boot

crates/boot/src/autoconfigure/windows.rs

@@ -0,0 +1,82 @@
+use crate::utils;
+use alloc::string::ToString;
+use alloc::{format, vec};
+use anyhow::{Context, Result};
+use edera_sprout_config::RootConfiguration;
+use edera_sprout_config::actions::ActionDeclaration;
+use edera_sprout_config::actions::chainload::ChainloadConfiguration;
+use edera_sprout_config::entries::EntryDeclaration;
+use uefi::CString16;
+use uefi::fs::{FileSystem, Path};
+use uefi::proto::device_path::DevicePath;
+use uefi::proto::device_path::text::{AllowShortcuts, DisplayOnly};
+
+/// The name prefix of the Windows chainload action that will be used to boot Windows.
+const WINDOWS_CHAINLOAD_ACTION_PREFIX: &str = "windows-chainload-";
+
+/// Windows boot manager path.
+const BOOTMGR_FW_PATH: &str = "\\EFI\\Microsoft\\Boot\\bootmgfw.efi";
+
+/// Scan the specified `filesystem` for Windows configurations.
+pub fn scan(
+    filesystem: &mut FileSystem,
+    root: &DevicePath,
+    config: &mut RootConfiguration,
+) -> Result<bool> {
+    // Convert the boot manager firmware path to a path.
+    let bootmgr_fw_path =
+        CString16::try_from(BOOTMGR_FW_PATH).context("unable to convert path to CString16")?;
+    let bootmgr_fw_path = Path::new(&bootmgr_fw_path);
+
+    // Check if the boot manager firmware path exists, if it doesn't, return false.
+    if !filesystem
+        .try_exists(bootmgr_fw_path)
+        .context("unable to check if bootmgr firmware path exists")?
+    {
+        return Ok(false);
+    }
+
+    // Convert the device path root to a string we can use in the configuration.
+    let mut root = root
+        .to_string(DisplayOnly(false), AllowShortcuts(false))
+        .context("unable to convert device root to string")?
+        .to_string();
+    // Add a trailing forward-slash to the root to ensure the device root is completed.
+    root.push('/');
+
+    // Generate a unique hash of the root path.
+    let root_unique_hash = utils::unique_hash(&root);
+
+    // Generate a unique name for the Windows chainload action.
+    let chainload_action_name = format!("{}{}", WINDOWS_CHAINLOAD_ACTION_PREFIX, root_unique_hash,);
+
+    // Generate an entry name for Windows.
+    let entry_name = format!("auto-windows-{}", root_unique_hash,);
+
+    // Create an entry for Windows and insert it into the configuration.
+    let entry = EntryDeclaration {
+        title: "Boot Windows".to_string(),
+        actions: vec![chainload_action_name.clone()],
+        values: Default::default(),
+    };
+    config.entries.insert(entry_name, entry);
+
+    // Generate a chainload configuration for Windows.
+    let chainload = ChainloadConfiguration {
+        path: format!("{}{}", root, bootmgr_fw_path),
+        options: vec![],
+        ..Default::default()
+    };
+
+    // Insert the chainload action into the configuration.
+    config.actions.insert(
+        chainload_action_name,
+        ActionDeclaration {
+            chainload: Some(chainload),
+            ..Default::default()
+        },
+    );
+
+    // We have a Windows boot entry, so return true to indicate something was found.
+    Ok(true)
+}