userspace: Add SUSFS lib

.github/workflows/build-manager.yml

@@ -8,6 +8,7 @@ on:
       - 'manager/**'
       - 'kernel/**'
       - 'userspace/ksud/**'
+      - 'userspace/susfs/**'
   pull_request:
     branches: [ "rebase-magic-mount" ]
     paths:
@@ -119,8 +120,19 @@ jobs:
       os: ${{ matrix.os }}
       pack_lkm: false
 
+  build-susfs:
+    needs: update-version
+    strategy:
+      matrix:
+        include:
+          - target: arm64-v8a
+          - target: x86_64
+    uses: ./.github/workflows/susfs.yml
+    with:
+      target: ${{ matrix.target }}
+
   build-manager:
-    needs: build-ksud
+    needs: [build-ksud, build-susfs]
     runs-on: ubuntu-latest
     defaults:
       run:
@@ -186,6 +198,25 @@ jobs:
           cp -f ../aarch64-linux-android/release/ksud ../manager/app/src/main/jniLibs/arm64-v8a/libksud.so
           cp -f ../x86_64-linux-android/release/ksud ../manager/app/src/main/jniLibs/x86_64/libksud.so
 
+      - name: Download arm64 susfs
+        uses: actions/download-artifact@v4
+        with:
+          name: susfs-arm64-v8a
+          path: ./arm64-v8a
+
+      - name: Download x86_64 susfs
+        uses: actions/download-artifact@v4
+        with:
+          name: susfs-x86_64
+          path: ./x86_64
+
+      - name: Copy susfs to app jniLibs
+        run: |
+          mkdir -p app/src/main/jniLibs/arm64-v8a
+          mkdir -p app/src/main/jniLibs/x86_64
+          cp -f ../arm64-v8a/susfs ../manager/app/src/main/jniLibs/arm64-v8a/libsusfs.so
+          cp -f ../x86_64/susfs ../manager/app/src/main/jniLibs/x86_64/libsusfs.so
+
       - name: Build with Gradle
         run: |
           {

.github/workflows/susfs.yml

@@ -0,0 +1,27 @@
+name: Build susfs
+on:
+  workflow_call:
+    inputs:
+      target:
+        required: true
+        type: string
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v4
+      with:
+        fetch-depth: 0
+
+    - name: Download artifacts
+      uses: actions/download-artifact@v4
+
+    - name: Build susfs
+      working-directory: ./userspace/susfs
+      run: $ANDROID_NDK/ndk-build
+
+    - name: Upload susfs artifact
+      uses: actions/upload-artifact@v4
+      with:
+        name: susfs-${{ inputs.target }}
+        path: ./userspace/susfs/libs/${{ inputs.target }}/susfs

userspace/susfs/.gitignore

@@ -0,0 +1,2 @@
+/obj
+/libs

userspace/susfs/jni/Android.mk

@@ -0,0 +1,8 @@
+LOCAL_PATH := $(call my-dir)
+
+include $(CLEAR_VARS)
+
+LOCAL_MODULE    := susfs
+LOCAL_SRC_FILES := main.c
+
+include $(BUILD_EXECUTABLE)

userspace/susfs/jni/Application.mk

@@ -0,0 +1,3 @@
+APP_ABI := arm64-v8a x86_64
+APP_PLATFORM := android-24
+APP_STL := none