GKI_KernelSU_SUSFS/.github/actions/setup-bbg/action.yml

name: Setup Baseband Guard (BBG)
description: Download and configure Baseband Guard security module
inputs:
  kernel_root:
    description: 'Path to kernel root directory'
    required: true
  defconfig_fragment:
    description: 'Path to defconfig fragment file'
    required: true

runs:
  using: composite
  steps:
    - name: Download Baseband Guard
      shell: bash
      working-directory: ${{ inputs.kernel_root }}
      run: |
        echo "========================================"
        echo "      Setting up Baseband Guard         "
        echo "========================================"
        curl -LSs https://github.com/vc-teahouse/Baseband-guard/raw/main/setup.sh | bash
        echo "✓ Baseband Guard downloaded"
    
    - name: Configure Baseband Guard
      shell: bash
      working-directory: ${{ inputs.kernel_root }}
      run: |
        # Add BBG to defconfig
        echo "CONFIG_BBG=y" >> "${{ inputs.defconfig_fragment }}"
        
        # Modify security Kconfig to include baseband_guard in LSM
        sed -i '/^config LSM$/,/^help$/{ /^[[:space:]]*default/ { /baseband_guard/! s/selinux/selinux,baseband_guard/ } }' common/security/Kconfig
        
        echo "✓ Baseband Guard configured in kernel"
    
    - name: Verify BBG Installation
      shell: bash
      working-directory: ${{ inputs.kernel_root }}
      run: |
        if grep -q "baseband_guard" common/security/Kconfig; then
          echo "✓ SUCCESS: baseband_guard found in common/security/Kconfig"
          grep -n "baseband_guard" common/security/Kconfig || true
        else
          echo "✗ FAILED: baseband_guard not found in common/security/Kconfig"
          exit 1
        fi
    
    - name: Extract BBG Version
      shell: bash
      working-directory: ${{ inputs.kernel_root }}/Baseband_guard
      run: |
        BBG_COMMIT=$(git rev-parse --short HEAD 2>/dev/null)
        BBG_VERSION=$(git rev-list --count HEAD 2>/dev/null)
        echo "BBG_COMMIT=$BBG_COMMIT" >> $GITHUB_ENV
        echo "BBG_VERSION=$BBG_VERSION" >> $GITHUB_ENV
        
        echo "✓ Baseband Guard Setup Complete"
        echo "  Version : $BBG_VERSION"
        echo "  Commit  : $BBG_COMMIT"
        echo "========================================"