manager: added mount system switchability

userspace: added ksud_overlayfs & ksud_magic

userspace/ksud_overlayfs/src/assets.rs

@@ -0,0 +1,50 @@
+use anyhow::Result;
+use const_format::concatcp;
+use rust_embed::RustEmbed;
+use std::path::Path;
+
+use crate::{defs::BINARY_DIR, utils};
+
+pub const RESETPROP_PATH: &str = concatcp!(BINARY_DIR, "resetprop");
+pub const BUSYBOX_PATH: &str = concatcp!(BINARY_DIR, "busybox");
+pub const BOOTCTL_PATH: &str = concatcp!(BINARY_DIR, "bootctl");
+
+#[cfg(all(target_arch = "x86_64", target_os = "android"))]
+#[derive(RustEmbed)]
+#[folder = "bin/x86_64"]
+struct Asset;
+
+// IF NOT x86_64 ANDROID, ie. macos, linux, windows, always use aarch64
+#[cfg(not(all(target_arch = "x86_64", target_os = "android")))]
+#[derive(RustEmbed)]
+#[folder = "bin/aarch64"]
+struct Asset;
+
+pub fn ensure_binaries(ignore_if_exist: bool) -> Result<()> {
+    for file in Asset::iter() {
+        if file == "ksuinit" || file.ends_with(".ko") {
+            // don't extract ksuinit and kernel modules
+            continue;
+        }
+        let asset = Asset::get(&file).ok_or(anyhow::anyhow!("asset not found: {}", file))?;
+        utils::ensure_binary(format!("{BINARY_DIR}{file}"), &asset.data, ignore_if_exist)?
+    }
+    Ok(())
+}
+
+pub fn copy_assets_to_file(name: &str, dst: impl AsRef<Path>) -> Result<()> {
+    let asset = Asset::get(name).ok_or(anyhow::anyhow!("asset not found: {}", name))?;
+    std::fs::write(dst, asset.data)?;
+    Ok(())
+}
+
+pub fn list_supported_kmi() -> Result<Vec<String>> {
+    let mut list = Vec::new();
+    for file in Asset::iter() {
+        // kmi_name = "xxx_kernelsu.ko"
+        if let Some(kmi) = file.strip_suffix("_kernelsu.ko") {
+            list.push(kmi.to_string());
+        }
+    }
+    Ok(list)
+}