fix: Restore HTTP portal redirect fallback (#1379)

*

.devcontainer.json

@@ -1,6 +0,0 @@
-{
-  "name": "dsm",
-  "service": "dsm",
-  "forwardPorts": [5000],
-  "dockerComposeFile": "compose.yml"
-}

.devcontainer/codespaces.yml

@@ -0,0 +1,19 @@
+services:
+  dsm:
+    container_name: dsm
+    image: ghcr.io/vdsm/virtual-dsm
+    environment:
+      RAM_SIZE: "half"
+      DISK_SIZE: "max"
+      CPU_CORES: "max"
+    devices:
+      - /dev/kvm
+      - /dev/net/tun
+    cap_add:
+      - NET_ADMIN
+    ports:
+      - 5000:5000
+    volumes:
+      - ./dsm:/storage
+    restart: on-failure
+    stop_grace_period: 2m

.devcontainer/devcontainer.json

@@ -0,0 +1,15 @@
+{
+  "name": "Virtual DSM",
+  "service": "dsm",
+  "forwardPorts": [5000],
+  "portsAttributes": {
+    "5000": {
+      "label": "Web",
+      "onAutoForward": "notify"
+    }
+  },
+  "otherPortsAttributes": {
+    "onAutoForward": "ignore"
+  }, 
+  "dockerComposeFile": "codespaces.yml"
+}

.dockerignore

@@ -1,4 +1,5 @@
 .dockerignore
+.devcontainer
 .git
 .github
 .gitignore

.github/dependabot.yml

@@ -1,10 +1,21 @@
 version: 2
+
 updates:
   - package-ecosystem: docker
     directory: /
     schedule:
       interval: weekly
+    cooldown:
+      default-days: 7
+
   - package-ecosystem: github-actions
     directory: /
     schedule:
       interval: weekly
+    cooldown:
+      default-days: 7
+    ignore:
+      - dependency-name: "*"
+        update-types:
+          - version-update:semver-minor
+          - version-update:semver-patch

.github/workflows/build.yml

@@ -22,13 +22,13 @@ jobs:
     steps:
       -
         name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v7
         with:
           fetch-depth: 0
       -
         name: Docker metadata
         id: meta
-        uses: docker/metadata-action@v5
+        uses: docker/metadata-action@v6
         with:
           context: git
           images: |
@@ -43,23 +43,23 @@ jobs:
           DOCKER_METADATA_ANNOTATIONS_LEVELS: manifest,index
       - 
         name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v3
+        uses: docker/setup-buildx-action@v4
       -
         name: Login into Docker Hub
-        uses: docker/login-action@v3
+        uses: docker/login-action@v4
         with:
           username: ${{ secrets.DOCKERHUB_USERNAME }}
           password: ${{ secrets.DOCKERHUB_TOKEN }}
       -
         name: Login to GitHub Container Registry
-        uses: docker/login-action@v3
+        uses: docker/login-action@v4
         with:
           registry: ghcr.io
           username: ${{ github.actor }}
           password: ${{ secrets.GITHUB_TOKEN }}
       -
         name: Build Docker image
-        uses: docker/build-push-action@v6
+        uses: docker/build-push-action@v7
         with:
           context: .
           push: true

.github/workflows/check.yml

@@ -1,5 +1,7 @@
 on: [workflow_call]
+
 name: "Check"
+
 permissions: {}
 
 jobs:
@@ -7,18 +9,29 @@ jobs:
     name: shellcheck
     runs-on: ubuntu-latest
     steps:
-      - 
-        name: Checkout
-        uses: actions/checkout@v5
       -
-        name: Run ShellCheck
-        uses: ludeeus/action-shellcheck@master
-        env:
-          SHELLCHECK_OPTS: -x --source-path=src -e SC2001 -e SC2034 -e SC2064 -e SC2317 -e SC2153 -e SC2028
-      - 
-        name: Lint Dockerfile
-        uses: hadolint/hadolint-action@v3.3.0
-        with:
-          dockerfile: Dockerfile
-          ignore: DL3008,DL3003,DL3006,DL3013
-          failure-threshold: warning
+        name: Checkout
+        uses: actions/checkout@v7
+      - parallel:
+          -
+            name: Run ShellCheck
+            uses: ludeeus/action-shellcheck@master
+            env:
+              SHELLCHECK_OPTS: >-
+                -x
+                --source-path=src
+                -e SC1091
+                -e SC2001
+                -e SC2034
+                -e SC2317
+                -e SC2153
+          -
+            name: Lint Dockerfile
+            uses: hadolint/hadolint-action@v3.4.0
+            with:
+              dockerfile: Dockerfile
+              ignore: DL3008,DL3067
+              failure-threshold: warning
+          -
+            name: Validate JSON and YML files
+            uses: GrantBirki/json-yaml-validate@v5

.github/workflows/hub.yml

@@ -12,13 +12,15 @@ jobs:
   dockerHubDescription:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v5
-    - 
-      name: Docker Hub Description
-      uses: peter-evans/dockerhub-description@v4
-      with:
-        username: ${{ secrets.DOCKERHUB_USERNAME }}
-        password: ${{ secrets.DOCKERHUB_TOKEN }}
-        repository: ${{ secrets.DOCKERHUB_REPO }}
-        short-description: ${{ github.event.repository.description }}
-        readme-filepath: ./readme.md
+      -
+        name: Checkout repo
+        uses: actions/checkout@v7
+      - 
+        name: Docker Hub Description
+        uses: peter-evans/dockerhub-description@v5
+        with:
+          username: ${{ secrets.DOCKERHUB_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_TOKEN }}
+          repository: ${{ secrets.DOCKERHUB_REPO }}
+          short-description: ${{ github.event.repository.description }}
+          readme-filepath: ./readme.md

.github/workflows/review.yml

@@ -0,0 +1,14 @@
+on:
+  pull_request:
+
+name: "Review"
+
+permissions:
+  contents: read
+  pull-requests: write
+  checks: write
+
+jobs:
+  review:
+    name: review
+    uses: action-pack/.github/.github/workflows/review.yml@master

.github/workflows/test.yml

@@ -1,11 +1,6 @@
 on:
   workflow_dispatch:
   pull_request:
-    paths:
-      - '**/*.sh'
-      - 'Dockerfile'
-      - '.github/workflows/test.yml'
-      - '.github/workflows/check.yml'
 
 name: "Test"
 permissions: {}

.gitignore

@@ -1 +1,268 @@
-build.sh
+##############################
+# Operating System Files
+##############################
+
+.DS_Store
+.AppleDouble
+.LSOverride
+Thumbs.db
+ehthumbs.db
+Desktop.ini
+Icon?
+$RECYCLE.BIN/
+.Spotlight-V100/
+.Trashes/
+.fseventsd
+
+##############################
+# IDEs
+##############################
+
+.vscode/
+.idea/
+*.iml
+*.ipr
+*.iws
+
+##############################
+# VS Code
+##############################
+
+.history/
+*.code-workspace
+
+##############################
+# Vim
+##############################
+
+*.swp
+*.swo
+Session.vim
+
+##############################
+# Sublime
+##############################
+
+*.sublime-workspace
+*.sublime-project
+
+##############################
+# Temporary Files
+##############################
+
+*.tmp
+*.temp
+*.bak
+*.old
+*.orig
+*.rej
+*.save
+
+##############################
+# Logs
+##############################
+
+*.log
+logs/
+log/
+*.out
+*.err
+*.trace
+
+##############################
+# Runtime
+##############################
+
+*.pid
+*.seed
+*.pid.lock
+
+##############################
+# Secrets
+##############################
+
+.env
+.env.*
+!.env.example
+*.pem
+*.key
+*.crt
+*.cer
+*.p12
+*.pfx
+*.kdbx
+*.secret
+*.token
+
+##############################
+# SSH
+##############################
+
+.ssh/
+
+##############################
+# Docker
+##############################
+
+docker-compose.override.yml
+docker-compose.local.yml
+
+##############################
+# VM Storage
+##############################
+
+storage/
+windows/
+downloads/
+
+##############################
+# Disk Images
+##############################
+
+*.qcow2
+*.qcow
+*.vhd
+*.vhdx
+*.vdi
+*.raw
+*.img
+*.iso
+*.bin
+
+##############################
+# QEMU
+##############################
+
+*.nvram
+*.fd
+*.efi
+*.sock
+*.monitor
+*.serial
+
+##############################
+# Samba
+##############################
+
+shared/
+share/
+
+##############################
+# Backups
+##############################
+
+backup/
+backups/
+*.backup
+
+##############################
+# Cache
+##############################
+
+.cache/
+.cache-loader/
+.tmp/
+temp/
+tmp/
+
+##############################
+# Python
+##############################
+
+__pycache__/
+*.py[cod]
+.pytest_cache/
+.mypy_cache/
+.venv/
+venv/
+
+##############################
+# Node
+##############################
+
+node_modules/
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+pnpm-debug.log*
+
+##############################
+# Build
+##############################
+
+dist/
+build/
+out/
+release/
+
+##############################
+# Coverage
+##############################
+
+coverage/
+.coverage
+coverage.xml
+
+##############################
+# Archives
+##############################
+
+*.zip
+*.tar
+*.tar.gz
+*.tgz
+*.7z
+*.rar
+
+##############################
+# Generated Config
+##############################
+
+config.local.*
+settings.local.*
+local.env
+
+##############################
+# Test Files
+##############################
+
+test-output/
+playwright-report/
+
+##############################
+# macOS
+##############################
+
+.AppleDB
+.AppleDesktop
+Network Trash Folder
+Temporary Items
+
+##############################
+# Linux
+##############################
+
+*~
+.nfs*
+
+##############################
+# Windows
+##############################
+
+*.stackdump
+
+##############################
+# Misc
+##############################
+
+*.cache
+*.lock
+*.lock.json
+*.bak.*
+
+##############################
+# Keep Examples
+##############################
+
+!.gitkeep
+!.env.example

Dockerfile

@@ -1,73 +1,50 @@
 # syntax=docker/dockerfile:1
 
-FROM qemux/qemu-host:2.05 AS builder
+FROM qemux/qemu-host:2.06 AS host
+FROM scratch
 
-#  FROM golang as builder
-#  WORKDIR /
-#  RUN git clone https://github.com/qemus/qemu-host.git
-#  WORKDIR /qemu-host/src
-#  RUN go mod download
-#  RUN CGO_ENABLED=0 GOOS=linux go build -a -installsuffix cgo -o /qemu-host.bin .
+COPY --from=qemux/qemu:7.45 / /
 
-FROM debian:trixie-slim
-
-ARG TARGETPLATFORM
 ARG VERSION_ARG="0.0"
+ARG VERSION_CSTRUCT="4.7"
+
 ARG DEBCONF_NOWARNINGS="yes"
 ARG DEBIAN_FRONTEND="noninteractive"
 ARG DEBCONF_NONINTERACTIVE_SEEN="true"
 
-RUN set -eu && \
-    apt-get update && \
-    apt-get --no-install-recommends -y install \
-        jq \
-        tini \
-        curl \
-        wget \
-        fdisk \
-        unzip \
-        nginx \
-        procps \
-        ethtool \
-        python3 \
-        python3-pip \
-        python3-msgpack \
-        python3-pysodium \
-        xz-utils \
-        iptables \
-        iproute2 \
-        apt-utils \
-        dnsmasq \
-        fakeroot \
-        net-tools \
-        e2fsprogs \
-        qemu-utils \
-        iputils-ping \
-        ca-certificates \
-        netcat-openbsd \
-        qemu-system-x86 && \
-    apt-get clean && \
-    pip3 install --no-cache-dir --break-system-packages --root-user-action=ignore dissect.cstruct && \
-    mkdir -p /etc/qemu && \
-    echo "allow br0" > /etc/qemu/bridge.conf && \
-    unlink /etc/nginx/sites-enabled/default && \
-    sed -i 's/^worker_processes.*/worker_processes 1;/' /etc/nginx/nginx.conf && \
-    echo "$VERSION_ARG" > /run/version && \
-    rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*
+RUN <<EOF
+  set -eu
+
+  apt-get update
+  apt-get --no-install-recommends -y install \
+    fakeroot \
+    python3-msgpack \
+    python3-pysodium
+
+  apt-get clean
+
+  # Install Python dependencies
+  pip3 install --no-cache-dir --break-system-packages --root-user-action=ignore "dissect.cstruct==$VERSION_CSTRUCT"
+
+  # Set version file
+  echo "$VERSION_ARG" > /etc/version
+
+  rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*
+EOF
 
 COPY --chmod=755 ./src /run/
 COPY --chmod=755 ./web /var/www/
-COPY --chmod=755 --from=builder /qemu-host.bin /run/host.bin
+COPY --chmod=755 --from=host /qemu-host.bin /run/host.bin
 COPY --chmod=744 ./web/conf/nginx.conf /etc/nginx/default.conf
 ADD --chmod=775 https://raw.githubusercontent.com/sud0woodo/patology/refs/heads/main/patology.py /run/extract.py
 
 VOLUME /storage
-EXPOSE 22 139 445 5000
+EXPOSE 445 5000
 
 ENV RAM_SIZE="2G"
 ENV CPU_CORES="2"
 ENV DISK_SIZE="256G"
 
-HEALTHCHECK --interval=60s --start-period=45s --retries=2 CMD /run/check.sh
+HEALTHCHECK --interval=60s --start-period=45s --retries=2 CMD ["/run/check.sh"]
 
 ENTRYPOINT ["/usr/bin/tini", "-s", "/run/entry.sh"]

docs/environment.md

@@ -0,0 +1,114 @@
+# Environment Variables
+
+This page lists all the environment variables that can be used to configure the container.
+
+An empty default means the variable is unset and its value is determined automatically when applicable.
+
+## 💽 Virtual DSM
+
+| Variable | Default | Description |
+|---|---|---|
+| `URL` |  | URL or local path to a custom `.pat` installation file. |
+| `COUNTRY` |  | Country code used to select the Synology download mirror. |
+| `HOST_MAC` |  | MAC address reported to DSM. |
+| `HOST_MODEL` |  | Synology host model reported to DSM. |
+| `HOST_SERIAL` |  | Synology host serial number reported to DSM. |
+| `GUEST_SERIAL` |  | Synology guest serial number reported to DSM. |
+
+## 🧠 CPU and Memory
+
+| Variable | Default | Description |
+|---|---|---|
+| `CPU_CORES` | `2` | Number of virtual CPU cores, such as `4`, `half`, or `max`. |
+| `CPU_MODEL` | `host` | QEMU CPU model. |
+| `CPU_FLAGS` |  | Additional QEMU CPU flags. |
+| `HOST_CPU` |  | CPU name reported to DSM. Selected automatically when unset. |
+| `KVM` | `Y` | Enables KVM hardware acceleration. |
+| `RAM_SIZE` | `2G` | Amount of RAM assigned to DSM, such as `2G`, `4G`, `half`, or `max`. |
+| `RAM_CHECK` | `Y` | Checks whether enough host memory is available before starting DSM. |
+
+## 💾 Storage
+
+| Variable | Default | Description |
+|---|---|---|
+| `DISK_SIZE` | `256G` | Size of the main data disk. |
+| `DISK_FMT` | `raw` | Disk image format: `raw` or `qcow2`. |
+| `DISK_TYPE` | `scsi` | Disk device type, such as `sata`, `scsi`, `nvme`, or `blk`. |
+| `DISK_CACHE` | `none` | Disk cache mode, such as `none` or `writeback`. |
+| `DISK_IO` | `native` | Disk I/O mode, such as `native`, `threads`, or `io_uring`. |
+| `DISK_DISCARD` | `unmap` | Discard/TRIM mode for the primary disk. |
+| `DISK_ROTATION` | `1` | Rotation rate reported to the guest. Use `1` to identify the disk as an SSD. |
+| `DISK_FLAGS` |  | Additional options used when creating `qcow2` disks. |
+| `DISK_OPTIONS` |  | Additional options appended to QEMU disk devices. |
+| `ALLOCATE` | `N` | Preallocates space for the data disks. |
+| `STORAGE` | `/storage` | Storage directory used for disks, settings, and downloads. |
+
+## 🌐 Networking
+
+| Variable | Default | Description |
+|---|---|---|
+| `NETWORK` |  | Network mode, such as `nat`, `user`, or `N` to disable networking. |
+| `DHCP` | `N` | Enables macvtap networking so DSM receives a DHCP address. |
+| `HOST` |  | Hostname assigned to the machine on the network. |
+| `IP` |  | Overrides the automatically selected guest IPv4 address. |
+| `MAC` |  | Guest network adapter MAC address. |
+| `ADAPTER` | `virtio-net-pci` | QEMU network adapter model. |
+| `DEV` | `eth0` | Container network interface used as the uplink. |
+| `MTU` |  | MTU assigned to the guest network interface. |
+| `MASK` | `255.255.255.0` | IPv4 netmask for guest network. |
+| `TAP` | `qemu` | TAP or macvtap interface name. |
+| `BRIDGE` | `docker` | Bridge name used for NAT networking. |
+| `HOST_PORTS` |  | Ports excluded from guest forwarding. |
+| `USER_PORTS` |  | Additional ports to forward to DSM when using user-mode networking. |
+| `DNSMASQ_OPTS` |  | Additional options passed to dnsmasq. |
+| `DNSMASQ_DEBUG` | `N` | Enables dnsmasq debug output. |
+| `DNSMASQ_DISABLE` | `N` | Disables the internal dnsmasq resolver. |
+| `PASST_OPTS` |  | Additional options passed to passt. |
+| `PASST_DEBUG` | `N` | Enables passt debug output. |
+
+## 🖥️ Display
+
+| Variable | Default | Description |
+|---|---|---|
+| `DISPLAY` | `none` | Display backend, such as `vnc`, `disabled`, or `none`. |
+| `LOSSY` | `N` | Enables lossy VNC compression to reduce bandwidth usage. |
+| `VGA` | `none` | QEMU video adapter model. |
+| `GPU` | `N` | Enables Intel iGPU acceleration. |
+| `RENDERNODE` | `/dev/dri/renderD128` | Render node used for GPU acceleration. |
+
+## 🎈 Memory Ballooning
+
+Also see [Dynamic memory allocation](https://github.com/qemus/qemu/blob/master/docs/ballooning.md) for usage instructions and important caveats.
+
+| Variable | Default | Description |
+|---|---|---|
+| `BALLOONING` | `N` | Enables dynamic memory ballooning. |
+| `BALLOONING_MIN_MEM` | `33%` | Minimum amount of memory retained by the VM. |
+| `BALLOONING_RAM_THRESHOLD` | `80.0` | Host RAM usage percentage at which ballooning begins adjusting memory. |
+| `BALLOONING_RAM_THRESHOLD_HARD` | `90.0` | Host RAM usage percentage at which ballooning becomes more aggressive. |
+| `BALLOONING_PSI_PRESSURE` | `10.0` | PSI memory pressure level at which ballooning becomes more aggressive. |
+| `BALLOONING_PSI_PRESSURE_MAX` | `50.0` | PSI memory pressure level at which ballooning reaches its strongest response. |
+| `BALLOONING_HYSTERESIS` | `128M` | Minimum memory change before the balloon target is updated. |
+| `BALLOONING_KP` | `0.5` | Proportional gain used by the ballooning controller. |
+| `BALLOONING_KI` | `0.05` | Integral gain used by the ballooning controller. |
+| `BALLOONING_INTERVAL` | `5` | Polling interval in seconds. |
+| `BALLOONING_DEBUG` | `N` | Enables debug output for the ballooning monitor. |
+
+## 🔌 Shutdown
+
+| Variable | Default | Description |
+|---|---|---|
+| `SHUTDOWN` | `Y` | Enables graceful shutdown. |
+| `TIMEOUT` | `105` | Maximum time, in seconds, to wait before forcing DSM to stop. |
+| `API_TIMEOUT` | `90` | Maximum time, in seconds, to wait for the shutdown API call. |
+
+## 🐞 Debugging
+
+| Variable | Default | Description |
+|---|---|---|
+| `DEBUG` | `N` | Enables verbose debug output. |
+| `TRACE` | `N` | Enables shell command tracing. |
+| `HOST_DEBUG` | `N` | Enables debug output for the DSM host helper. |
+| `MONITOR` |  | QEMU monitor configuration. |
+| `QMP` |  | QEMU Machine Protocol configuration. |
+| `ARGUMENTS` |  | Additional raw arguments appended to the QEMU command line. |

kubernetes.yml

@@ -18,6 +18,8 @@ metadata:
     name: dsm
 spec:
   replicas: 1
+  strategy:
+    type: Recreate
   selector:
     matchLabels:
       app: dsm

readme.md

@@ -16,13 +16,18 @@ Virtual DSM in a Docker container.
 
 ## Features ✨
 
- - Multiple disks
- - KVM acceleration
- - Upgrades supported
- 
+- Runs Virtual DSM inside a Docker container
+- Automatic download of the installation files
+- Web-based access to the DSM desktop
+- Near-native performance with KVM acceleration
+- Customizable CPU, memory, and storage allocation
+- Supports multiple disks and physical disk passthrough
+- Dynamic memory allocation with memory ballooning
+- Supports NAT, user-mode, macvlan, and macvtap networking
+
 ## Usage  🐳
 
-##### Via Docker Compose:
+##### Docker Compose:
 
 ```yaml
 services:
@@ -44,22 +49,32 @@ services:
     stop_grace_period: 2m
 ```
 
-##### Via Docker CLI:
+##### Docker CLI:
 
 ```bash
-docker run -it --rm --name dsm -e "DISK_SIZE=256G" -p 5000:5000 --device=/dev/kvm --device=/dev/net/tun --cap-add NET_ADMIN -v "${PWD:-.}/dsm:/storage" --stop-timeout 120 vdsm/virtual-dsm
+docker run -it --rm --name dsm -e "DISK_SIZE=256G" -p 5000:5000 --device=/dev/kvm --device=/dev/net/tun --cap-add NET_ADMIN -v "${PWD:-.}/dsm:/storage" --stop-timeout 120 docker.io/vdsm/virtual-dsm
 ```
 
-##### Via Kubernetes:
+##### Kubernetes:
 
 ```shell
 kubectl apply -f https://raw.githubusercontent.com/vdsm/virtual-dsm/refs/heads/master/kubernetes.yml
 ```
 
-##### Via Github Codespaces:
+##### GitHub Codespaces:
 
 [![Open in GitHub Codespaces](https://github.com/codespaces/badge.svg)](https://codespaces.new/vdsm/virtual-dsm)
 
+## Requirements ⚙️
+
+- Docker or Podman on a Linux host with KVM support.
+- Docker Desktop or Podman (Desktop) on Windows 11 with nested virtualization enabled.
+- At least 1 GB of available RAM.
+- At least 16 GB of free disk space.
+
+> [!NOTE]
+> Docker Desktop on Linux, macOS, and Windows 10 does not currently provide KVM access to containers and is therefore not supported.
+
 ## FAQ 💬
 
 ### How do I use it?
@@ -70,7 +85,7 @@ kubectl apply -f https://raw.githubusercontent.com/vdsm/virtual-dsm/refs/heads/m
 
   - Wait until DSM finishes its installation
  
-  - Choose an username and password, and you will be taken to the desktop.
+  - Choose a username and password, and you will be taken to the desktop.
   
   Enjoy your brand new NAS, and don't forget to star this repo!
 
@@ -95,7 +110,7 @@ kubectl apply -f https://raw.githubusercontent.com/vdsm/virtual-dsm/refs/heads/m
   ```
   
 > [!TIP]
-> This can also be used to resize the existing disk to a larger capacity without any data loss.
+> This can also be used to resize an existing disk to a larger capacity without any data loss.
 
 ### How do I add multiple disks?
 
@@ -110,9 +125,9 @@ kubectl apply -f https://raw.githubusercontent.com/vdsm/virtual-dsm/refs/heads/m
     - ./example3:/storage3
   ```
 
-### How do I pass-through a disk?
+### How do I pass through a disk?
 
-   It is possible to pass-through disk devices or partitions directly by adding them to your compose file in this way:
+   You can pass through disk devices or partitions directly by adding them to your compose file in this way:
 
   ```yaml
   devices:
@@ -124,7 +139,7 @@ kubectl apply -f https://raw.githubusercontent.com/vdsm/virtual-dsm/refs/heads/m
 
 ### How do I change the amount of CPU or RAM?
 
-  By default, the container will be allowed to use a maximum of 2 CPU cores and 2 GB of RAM.
+  By default, Virtual DSM will be allowed to use 2 CPU cores and 2 GB of RAM.
 
   If you want to adjust this, you can specify the desired amount using the following environment variables:
 
@@ -134,34 +149,6 @@ kubectl apply -f https://raw.githubusercontent.com/vdsm/virtual-dsm/refs/heads/m
     CPU_CORES: "4"
   ```
 
-### How do I verify if my system supports KVM?
-
-  First check if your software is compatible using this chart:
-
-  | **Product**  | **Linux** | **Win11** | **Win10** | **macOS** |
-  |---|---|---|---|---|
-  | Docker CLI        | ✅   | ✅       | ❌        | ❌ |
-  | Docker Desktop    | ❌   | ✅       | ❌        | ❌ | 
-  | Podman CLI        | ✅   | ✅       | ❌        | ❌ | 
-  | Podman Desktop    | ✅   | ✅       | ❌        | ❌ | 
-
-  After that you can run the following commands in Linux to check your system:
-
-  ```bash
-  sudo apt install cpu-checker
-  sudo kvm-ok
-  ```
-
-  If you receive an error from `kvm-ok` indicating that KVM cannot be used, please check whether:
-
-  - the virtualization extensions (`Intel VT-x` or `AMD SVM`) are enabled in your BIOS.
-
-  - you enabled "nested virtualization" if you are running the container inside a virtual machine.
-
-  - you are not using a cloud provider, as most of them do not allow nested virtualization for their VPS's.
-
-  If you did not receive any error from `kvm-ok` but the container still complains about a missing KVM device, it could help to add `privileged: true` to your compose file (or `sudo` to your `docker` command) to rule out any permission issue.
-
 ### How do I assign an individual IP address to the container?
 
   By default, the container uses bridge networking, which shares the IP address with the host. 
@@ -214,9 +201,9 @@ kubectl apply -f https://raw.githubusercontent.com/vdsm/virtual-dsm/refs/heads/m
     - 'c *:* rwm'
   ```
 
-### How do I pass-through the GPU?
+### How do I pass through the GPU?
 
-  To pass-through your Intel GPU, add the following lines to your compose file:
+  To pass through your Intel GPU, add the following lines to your compose file:
 
   ```yaml
   environment:
@@ -228,6 +215,12 @@ kubectl apply -f https://raw.githubusercontent.com/vdsm/virtual-dsm/refs/heads/m
 > [!NOTE]
 > This can be used to enable the facial recognition function in Synology Photos, but does not provide hardware transcoding for video.
 
+### How do I enable dynamic memory allocation?
+
+  By default, the DSM is allocated the full amount of RAM configured via `RAM_SIZE` for its entire lifetime.
+
+  However, you can enable [memory ballooning](https://github.com/qemus/qemu/blob/master/docs/ballooning.md) if you want the container to dynamically reclaim unused guest RAM based on host memory pressure.
+
 ### How do I install a specific version of vDSM?
 
   By default, version 7.2 will be installed, but if you prefer an older version, you can add the download URL of the `.pat` file to your compose file as follows:
@@ -248,18 +241,53 @@ kubectl apply -f https://raw.githubusercontent.com/vdsm/virtual-dsm/refs/heads/m
 
   Replace the example path `./DSM_VirtualDSM_42218.pat` with the filename of your desired `.pat` file. The value of `URL` will be ignored in this case.
 
+### Are these all available options?
+
+  No. For a complete overview of all supported settings, see the [environment variables](docs/environment.md) page.
+
+### How do I verify that KVM is available?
+
+  First, make sure your platform and container runtime meet the [requirements](#requirements-️) listed above.
+
+  On a Linux host, install `cpu-checker` and run:
+
+  ```bash
+  sudo apt install cpu-checker
+  sudo kvm-ok
+  ```
+
+  A working configuration should report:
+
+  ```text
+  KVM acceleration can be used
+  ```
+
+  You can also verify that the KVM device exists:
+
+  ```bash
+  ls -l /dev/kvm
+  ```
+
+  If KVM is unavailable, check whether:
+
+  - Hardware virtualization (`Intel VT-x` or `AMD-V`) is enabled in your BIOS or UEFI.
+  - Nested virtualization is enabled when the host itself is a virtual machine.
+  - Your VPS or cloud provider supports nested virtualization.
+
+  If `kvm-ok` succeeds but the container still reports that KVM is unavailable, you can temporarily add `privileged: true` to your Compose file to rule out a permission or device-access issue.
+
 ### What are the differences compared to the standard DSM?
 
   There are only two minor differences: the Virtual Machine Manager package is not available, and Surveillance Station will not include any free licenses.
 
 ### Is this project legal?
 
-  Yes, this project contains only open-source code and does not distribute any copyrighted material. Neither does it try to circumvent any copyright protection measures. So under all applicable laws, this project will be considered legal. 
+  Yes, this project contains only open-source code and does not distribute any material owned by Synology. Neither does it try to circumvent any copyright protection measures.
   
   However, by installing Synology's Virtual DSM, you must accept their end-user license agreement, which does not permit installation on non-Synology hardware. So only run this container on an official Synology NAS, as any other use will be a violation of their terms and conditions.
 
 ## Stars 🌟
-[![Stars](https://starchart.cc/vdsm/virtual-dsm.svg?variant=adaptive)](https://starchart.cc/vdsm/virtual-dsm)
+[![Stargazers](https://raw.githubusercontent.com/star-stats/stars/refs/heads/data/charts/vdsm-virtual-dsm.svg)](https://github.com/vdsm/virtual-dsm/stargazers)
 
 ## Disclaimer ⚖️
 

src/check.sh

@@ -1,28 +1,41 @@
 #!/usr/bin/env bash
 set -Eeuo pipefail
 
+cd /run
+. utils.sh      # Load functions
+
+: "${DHCP:="N"}"
 : "${NETWORK:="Y"}"
 
-[ -f "/run/shm/qemu.end" ] && echo "QEMU is shutting down.." && exit 1
-[ ! -s "/run/shm/qemu.pid" ] && echo "QEMU is not running yet.." && exit 0
-[[ "$NETWORK" == [Nn]* ]] && echo "Networking is disabled.." && exit 0
+[ -f "/run/shm/qemu.end" ] && echo "QEMU is shutting down..." && exit 1
+
+# Treat the startup window as healthy so container health checks do not restart
+# the service before QEMU has had time to publish its PID.
+[ ! -s "/run/shm/qemu.pid" ] && echo "QEMU is not running yet..." && exit 0
+
+disabled "$NETWORK" && echo "Networking is disabled." && exit 0
 
 file="/run/shm/dsm.url"
-address="/run/shm/qemu.ip"
+address="/run/shm/qemu.host"
+gateway="/run/shm/qemu.gw"
 
-[ ! -s  "$file" ] && echo "DSM has not enabled networking yet.." && exit 1
+# dsm.url is written only after the guest agent reports both the DSM
+# address and its configured HTTP port.
+[ ! -s "$file" ] && echo "DSM has not enabled networking yet..." && exit 0
 
 location=$(<"$file")
 
-if ! curl -m 20 -ILfSs "http://$location/" > /dev/null; then
+if ! curl -m 20 -LfSs -o /dev/null "http://$location/"; then
 
-  if [[ "$location" == "20.20"* ]]; then
-    ip="20.20.20.1"
+  # In DHCP mode the firewall must allow the container address; with port
+  # forwarding it must allow the internal gateway used to reach the guest.
+  if enabled "$DHCP"; then
+    ip=$(<"$address")
+    echo "Failed to reach DSM at http://$location"
+  else
+    ip=$(<"$gateway")
     port="${location##*:}"
     echo "Failed to reach DSM at port $port"
-  else
-    echo "Failed to reach DSM at http://$location"
-    ip=$(<"$address")
   fi
 
   echo "You might need to whitelist IP $ip in the DSM firewall." && exit 1

src/config.sh

@@ -1,43 +1,99 @@
 #!/usr/bin/env bash
 set -Eeuo pipefail
 
+: "${QMP:=""}"
+: "${UUID:=""}"
+: "${MONITOR:=""}"
+
 DEF_OPTS="-nodefaults -boot strict=on"
-RAM_OPTS=$(echo "-m ${RAM_SIZE^^}" | sed 's/MB/M/g;s/GB/G/g;s/TB/T/g')
-CPU_OPTS="-cpu $CPU_FLAGS -smp $CPU_CORES,sockets=1,dies=1,cores=$CPU_CORES,threads=1"
-MAC_OPTS="-machine type=q35,smm=off,usb=off,vmport=off,dump-guest-core=off,hpet=off${KVM_OPTS}"
-DEV_OPTS="-device virtio-balloon-pci,id=balloon0,bus=pcie.0,addr=0x4"
-DEV_OPTS+=" -object rng-random,id=objrng0,filename=/dev/urandom"
-DEV_OPTS+=" -device virtio-rng-pci,rng=objrng0,id=rng0,bus=pcie.0,addr=0x1c"
+DEV_OPTS=""
 
-ARGS="$DEF_OPTS $CPU_OPTS $RAM_OPTS $MAC_OPTS $DISPLAY_OPTS $MON_OPTS $SERIAL_OPTS $NET_OPTS $DISK_OPTS $DEV_OPTS $ARGUMENTS"
-ARGS=$(echo "$ARGS" | sed 's/\t/ /g' | tr -s ' ')
+configureProcessor() {
 
-# Check available memory as the very last step
+  # Expose one thread per core in a single socket; DSM licensing and topology
+  # reporting are more predictable with this fixed layout.
+  CPU_OPTS="-cpu $CPU_FLAGS"
+  CPU_OPTS+=" -smp $CPU_CORES,sockets=1,dies=1,cores=$CPU_CORES,threads=1"
 
-if [[ "$RAM_CHECK" != [Nn]* ]]; then
+  return 0
+}
 
-  RAM_AVAIL=$(free -b | grep -m 1 Mem: | awk '{print $7}')
-  AVAIL_MEM=$(formatBytes "$RAM_AVAIL")
+configureMemory() {
 
-  if (( (RAM_WANTED + RAM_SPARE) > RAM_AVAIL )); then
-    msg="Your configured RAM_SIZE of ${RAM_SIZE/G/ GB} is too high for the $AVAIL_MEM of memory available, please set a lower value."
-    [[ "${FS,,}" != "zfs" ]] && error "$msg" && exit 17
-    info "$msg"
+  RAM_OPTS=$(echo "-m ${RAM_SIZE^^}" | sed 's/MB/M/g;s/GB/G/g;s/TB/T/g')
+
+  return 0
+}
+
+configureMonitor() {
+
+  MON_OPTS=""
+  [ -n "$QMP" ] && MON_OPTS+=" -qmp $QMP"
+  [ -n "$MONITOR" ] && MON_OPTS+=" -monitor $MONITOR"
+
+  MON_OPTS+=" -name $PROCESS,process=$PROCESS,debug-threads=on"
+  MON_OPTS+=" -pidfile $QEMU_PID"
+  MON_OPTS="${MON_OPTS# }"
+
+  return 0
+}
+
+configureMachine() {
+
+  local smm="off"
+  enabled "${SMM:-}" && smm="on"
+
+  # Disable firmware and chipset features that Virtual DSM does not use and
+  # that can introduce extra devices or timing differences.
+  MAC_OPTS="-machine type=$MACHINE,smm=$smm,usb=off"
+  MAC_OPTS+=",vmport=off,dump-guest-core=off,hpet=off${KVM_OPTS}"
+
+  UUID=$(strip "$UUID")
+  [ -n "$UUID" ] && MAC_OPTS+=" -uuid $UUID"
+  [ -n "${SM_BIOS:-}" ] && MAC_OPTS+=" $SM_BIOS"
+
+  return 0
+}
+
+configureVirtioDevices() {
+
+  local bus
+  bus=$(getPciBus)
+
+  # Keep the existing balloon device by default. When dynamic ballooning is
+  # enabled, expose guest statistics and a dedicated QMP control socket.
+  if ! enabled "${BALLOONING:-}"; then
+    DEV_OPTS="-device virtio-balloon-pci,id=balloon0,bus=$bus,addr=0x4"
   else
-    if (( (RAM_WANTED + (RAM_SPARE * 3)) > RAM_AVAIL )); then
-      msg="your configured RAM_SIZE of ${RAM_SIZE/G/ GB} is very close to the $AVAIL_MEM of memory available, please consider a lower value."
-      if [[ "${FS,,}" != "zfs" ]]; then
-        warn "$msg"
-      else
-        info "$msg"
-      fi
-    fi
+    MON_OPTS+=" -qmp unix:${BALLOONING_SOCKET},server=on,wait=off"
+    DEV_OPTS="-device virtio-balloon-pci,free-page-reporting=on,guest-stats-polling-interval=1,id=balloon0,bus=$bus,addr=0x4"
   fi
 
-fi
+  DEV_OPTS+=" -object rng-random,id=objrng0,filename=/dev/urandom"
+  DEV_OPTS+=" -device virtio-rng-pci,rng=objrng0,id=rng0,bus=$bus,addr=0x1c"
 
-if [[ "$DEBUG" == [Yy1]* ]]; then
-  printf "Arguments:\n\n%s\n\n" "${ARGS// -/$'\n-'}"
-fi
+  return 0
+}
+
+buildArguments() {
+
+  ARGS="$DEF_OPTS $CPU_OPTS $RAM_OPTS $MAC_OPTS $DISPLAY_OPTS $MON_OPTS $SERIAL_OPTS $NET_OPTS $DISK_OPTS $BOOT_OPTS $DEV_OPTS $ARGUMENTS"
+
+  # Collapse whitespace after optional argument groups are assembled so empty
+  # features cannot leave malformed spacing in the final QEMU command.
+  ARGS=$(echo "$ARGS" | sed 's/\t/ /g' | tr -s ' ')
+
+  return 0
+}
+
+finalizeMemory
+
+configureMemory
+configureMonitor
+configureMachine
+configureProcessor
+configureVirtioDevices
+
+buildArguments
 
 return 0

src/disk.sh

@@ -1,632 +0,0 @@
-#!/usr/bin/env bash
-set -Eeuo pipefail
-
-# Docker environment variables
-
-: "${DISK_IO:="native"}"          # I/O Mode, can be set to 'native', 'threads' or 'io_uring'
-: "${DISK_FMT:="raw"}"            # Disk file format, 'raw' by default for best performance
-: "${DISK_TYPE:=""}"              # Device type to be used, "sata", "nvme", "blk" or "scsi"
-: "${DISK_FLAGS:=""}"             # Specifies the options for use with the qcow2 disk format
-: "${DISK_CACHE:="none"}"         # Caching mode, can be set to 'writeback' for better performance
-: "${DISK_DISCARD:="on"}"         # Controls whether unmap (TRIM) commands are passed to the host.
-: "${DISK_ROTATION:="1"}"         # Rotation rate, set to 1 for SSD storage and increase for HDD
-
-BOOT="$STORAGE/$BASE.boot.img"
-SYSTEM="$STORAGE/$BASE.system.img"
-
-[ ! -s "$BOOT" ] && error "Virtual DSM boot-image does not exist ($BOOT)" && exit 81
-[ ! -s "$SYSTEM" ] && error "Virtual DSM system-image does not exist ($SYSTEM)" && exit 82
-
-fmt2ext() {
-  local DISK_FMT=$1
-
-  case "${DISK_FMT,,}" in
-    qcow2)
-      echo "qcow2"
-      ;;
-    raw)
-      echo "img"
-      ;;
-    *)
-      error "Unrecognized disk format: $DISK_FMT" && exit 78
-      ;;
-  esac
-}
-
-ext2fmt() {
-  local DISK_EXT=$1
-
-  case "${DISK_EXT,,}" in
-    qcow2)
-      echo "qcow2"
-      ;;
-    img)
-      echo "raw"
-      ;;
-    *)
-      error "Unrecognized file extension: .$DISK_EXT" && exit 78
-      ;;
-  esac
-}
-
-getSize() {
-  local DISK_FILE=$1
-  local DISK_EXT DISK_FMT
-
-  DISK_EXT=$(echo "${DISK_FILE//*./}" | sed 's/^.*\.//')
-  DISK_FMT=$(ext2fmt "$DISK_EXT")
-
-  case "${DISK_FMT,,}" in
-    raw)
-      stat -c%s "$DISK_FILE"
-      ;;
-    qcow2)
-      qemu-img info "$DISK_FILE" -f "$DISK_FMT" | grep '^virtual size: ' | sed 's/.*(\(.*\) bytes)/\1/'
-      ;;
-    *)
-      error "Unrecognized disk format: $DISK_FMT" && exit 78
-      ;;
-  esac
-}
-
-isCow() {
-  local FS=$1
-
-  if [[ "${FS,,}" == "btrfs" ]]; then
-    return 0
-  fi
-
-  return 1
-}
-
-supportsDirect() {
-  local FS=$1
-
-  if [[ "${FS,,}" == "ecryptfs" || "${FS,,}" == "tmpfs" ]]; then
-    return 1
-  fi
-
-  return 0
-}
-
-createDisk() {
-
-  local DISK_FILE=$1
-  local DISK_SPACE=$2
-  local DISK_DESC=$3
-  local DISK_FMT=$4
-  local FS=$5
-  local DATA_SIZE DIR SPACE GB FA
-
-  DATA_SIZE=$(numfmt --from=iec "$DISK_SPACE")
-
-  rm -f "$DISK_FILE"
-
-  if [[ "$ALLOCATE" != [Nn]* ]]; then
-
-    # Check free diskspace
-    DIR=$(dirname "$DISK_FILE")
-    SPACE=$(df --output=avail -B 1 "$DIR" | tail -n 1)
-
-    if (( DATA_SIZE > SPACE )); then
-      GB=$(formatBytes "$SPACE")
-      error "Not enough free space to create a $DISK_DESC of ${DISK_SPACE/G/ GB} in $DIR, it has only $GB available..."
-      error "Please specify a smaller ${DISK_DESC^^}_SIZE or disable preallocation by setting ALLOCATE=N." && exit 76
-    fi
-  fi
-
-  html "Creating a $DISK_DESC image..."
-  info "Creating a ${DISK_SPACE/G/ GB} $DISK_STYLE $DISK_DESC image in $DISK_FMT format..."
-
-  local FAIL="Could not create a $DISK_STYLE $DISK_FMT $DISK_DESC image of ${DISK_SPACE/G/ GB} ($DISK_FILE)"
-
-  case "${DISK_FMT,,}" in
-    raw)
-
-      if isCow "$FS"; then
-        if ! touch "$DISK_FILE"; then
-          error "$FAIL" && exit 77
-        fi
-        { chattr +C "$DISK_FILE"; } || :
-      fi
-
-      if [[ "$ALLOCATE" == [Nn]* ]]; then
-
-        # Create an empty file
-        if ! truncate -s "$DATA_SIZE" "$DISK_FILE"; then
-          rm -f "$DISK_FILE"
-          error "$FAIL" && exit 77
-        fi
-
-      else
-
-        # Create an empty file
-        if ! fallocate -l "$DATA_SIZE" "$DISK_FILE" &>/dev/null; then
-          if ! fallocate -l -x "$DATA_SIZE" "$DISK_FILE"; then
-            if ! truncate -s "$DATA_SIZE" "$DISK_FILE"; then
-              rm -f "$DISK_FILE"
-              error "$FAIL" && exit 77
-            fi
-          fi
-        fi
-
-      fi
-      ;;
-    qcow2)
-
-      local DISK_PARAM="$DISK_ALLOC"
-      isCow "$FS" && DISK_PARAM+=",nocow=on"
-      [ -n "$DISK_FLAGS" ] && DISK_PARAM+=",$DISK_FLAGS"
-
-      if ! qemu-img create -f "$DISK_FMT" -o "$DISK_PARAM" -- "$DISK_FILE" "$DATA_SIZE" ; then
-        rm -f "$DISK_FILE"
-        error "$FAIL" && exit 70
-      fi
-      ;;
-  esac
-
-  if isCow "$FS"; then
-    FA=$(lsattr "$DISK_FILE")
-    if [[ "$FA" != *"C"* ]]; then
-      error "Failed to disable COW for $DISK_DESC image $DISK_FILE on ${FS^^} filesystem (returned $FA)"
-    fi
-  fi
-
-  return 0
-}
-
-resizeDisk() {
-
-  local DISK_FILE=$1
-  local DISK_SPACE=$2
-  local DISK_DESC=$3
-  local DISK_FMT=$4
-  local FS=$5
-  local CUR_SIZE DATA_SIZE DIR SPACE GB
-
-  CUR_SIZE=$(getSize "$DISK_FILE")
-  DATA_SIZE=$(numfmt --from=iec "$DISK_SPACE")
-  local REQ=$((DATA_SIZE-CUR_SIZE))
-  (( REQ < 1 )) && error "Shrinking disks is not supported yet, please increase ${DISK_DESC^^}_SIZE." && exit 71
-
-  if [[ "$ALLOCATE" != [Nn]* ]]; then
-
-    # Check free diskspace
-    DIR=$(dirname "$DISK_FILE")
-    SPACE=$(df --output=avail -B 1 "$DIR" | tail -n 1)
-
-    if (( REQ > SPACE )); then
-      GB=$(formatBytes "$SPACE")
-      error "Not enough free space to resize $DISK_DESC to ${DISK_SPACE/G/ GB} in $DIR, it has only $GB available.."
-      error "Please specify a smaller ${DISK_DESC^^}_SIZE or disable preallocation by setting ALLOCATE=N." && exit 74
-    fi
-  fi
-
-  GB=$(formatBytes "$CUR_SIZE")
-  MSG="Resizing $DISK_DESC from $GB to ${DISK_SPACE/G/ GB}..."
-  info "$MSG" && html "$MSG"
-
-  local FAIL="Could not resize the $DISK_STYLE $DISK_FMT $DISK_DESC image from ${GB} to ${DISK_SPACE/G/ GB} ($DISK_FILE)"
-
-  case "${DISK_FMT,,}" in
-    raw)
-
-      if [[ "$ALLOCATE" == [Nn]* ]]; then
-
-        # Resize file by changing its length
-        if ! truncate -s "$DATA_SIZE" "$DISK_FILE"; then
-          error "$FAIL" && exit 75
-        fi
-
-      else
-
-        # Resize file by allocating more space
-        if ! fallocate -l "$DATA_SIZE" "$DISK_FILE" &>/dev/null; then
-          if ! fallocate -l -x "$DATA_SIZE" "$DISK_FILE"; then
-            if ! truncate -s "$DATA_SIZE" "$DISK_FILE"; then
-              error "$FAIL" && exit 75
-            fi
-          fi
-        fi
-
-      fi
-      ;;
-    qcow2)
-
-      if ! qemu-img resize -f "$DISK_FMT" "--$DISK_ALLOC" "$DISK_FILE" "$DATA_SIZE" ; then
-        error "$FAIL" && exit 72
-      fi
-
-      ;;
-  esac
-
-  return 0
-}
-
-convertDisk() {
-
-  local SOURCE_FILE=$1
-  local SOURCE_FMT=$2
-  local DST_FILE=$3
-  local DST_FMT=$4
-  local DISK_BASE=$5
-  local DISK_DESC=$6
-  local FS=$7
-
-  [ -f "$DST_FILE" ] && error "Conversion failed, destination file $DST_FILE already exists?" && exit 79
-  [ ! -f "$SOURCE_FILE" ] && error "Conversion failed, source file $SOURCE_FILE does not exists?" && exit 79
-
-  local TMP_FILE="$DISK_BASE.tmp"
-  rm -f "$TMP_FILE"
-
-  if [[ "$ALLOCATE" != [Nn]* ]]; then
-
-    local DIR CUR_SIZE SPACE GB
-
-    # Check free diskspace
-    DIR=$(dirname "$TMP_FILE")
-    CUR_SIZE=$(getSize "$SOURCE_FILE")
-    SPACE=$(df --output=avail -B 1 "$DIR" | tail -n 1)
-
-    if (( CUR_SIZE > SPACE )); then
-      GB=$(formatBytes "$SPACE")
-      error "Not enough free space to convert $DISK_DESC to $DST_FMT in $DIR, it has only $GB available..."
-      error "Please free up some disk space or disable preallocation by setting ALLOCATE=N." && exit 76
-    fi
-  fi
-
-  local msg="Converting $DISK_DESC to $DST_FMT"
-  html "$msg..."
-  info "$msg, please wait until completed..."
-
-  local CONV_FLAGS="-p"
-  local DISK_PARAM="$DISK_ALLOC"
-  isCow "$FS" && DISK_PARAM+=",nocow=on"
-
-  if [[ "$DST_FMT" != "raw" ]]; then
-    if [[ "$ALLOCATE" == [Nn]* ]]; then
-      CONV_FLAGS+=" -c"
-    fi
-    [ -n "$DISK_FLAGS" ] && DISK_PARAM+=",$DISK_FLAGS"
-  fi
-
-  # shellcheck disable=SC2086
-  if ! qemu-img convert -f "$SOURCE_FMT" $CONV_FLAGS -o "$DISK_PARAM" -O "$DST_FMT" -- "$SOURCE_FILE" "$TMP_FILE"; then
-    rm -f "$TMP_FILE"
-    error "Failed to convert $DISK_STYLE $DISK_DESC image to $DST_FMT format in $DIR, is there enough space available?" && exit 79
-  fi
-
-  if [[ "$DST_FMT" == "raw" ]]; then
-    if [[ "$ALLOCATE" != [Nn]* ]]; then
-      # Work around qemu-img bug
-      CUR_SIZE=$(stat -c%s "$TMP_FILE")
-      if ! fallocate -l "$CUR_SIZE" "$TMP_FILE" &>/dev/null; then
-        if ! fallocate -l -x "$CUR_SIZE" "$TMP_FILE"; then
-          error "Failed to allocate $CUR_SIZE bytes for $DISK_DESC image $TMP_FILE"
-        fi
-      fi
-    fi
-  fi
-
-  rm -f "$SOURCE_FILE"
-  mv "$TMP_FILE" "$DST_FILE"
-
-  if isCow "$FS"; then
-    FA=$(lsattr "$DST_FILE")
-    if [[ "$FA" != *"C"* ]]; then
-      error "Failed to disable COW for $DISK_DESC image $DST_FILE on ${FS^^} filesystem (returned $FA)"
-    fi
-  fi
-
-  msg="Conversion of $DISK_DESC"
-  html "$msg completed..."
-  info "$msg to $DST_FMT completed successfully!"
-
-  return 0
-}
-
-checkFS () {
-
-  local FS=$1
-  local DISK_FILE=$2
-  local DISK_DESC=$3
-  local DIR FA
-
-  DIR=$(dirname "$DISK_FILE")
-  [ ! -d "$DIR" ] && return 0
-
-  if [[ "${FS,,}" == "overlay"* ]]; then
-    info "Warning: the filesystem of $DIR is OverlayFS, this usually means it was binded to an invalid path!"
-  fi
-
-  if [[ "${FS,,}" == "fuse"* ]]; then
-    info "Warning: the filesystem of $DIR is FUSE, this extra layer will negatively affect performance!"
-  fi
-
-  if ! supportsDirect "$FS"; then
-    info "Warning: the filesystem of $DIR is $FS, which does not support O_DIRECT mode, adjusting settings..."
-  fi
-
-  if isCow "$FS"; then
-    if [ -f "$DISK_FILE" ]; then
-      FA=$(lsattr "$DISK_FILE")
-      if [[ "$FA" != *"C"* ]]; then
-        info "Warning: COW (copy on write) is not disabled for $DISK_DESC image file $DISK_FILE, this is recommended on ${FS^^} filesystems!"
-      fi
-    fi
-  fi
-
-  return 0
-}
-
-createDevice () {
-
-  local DISK_FILE=$1
-  local DISK_TYPE=$2
-  local DISK_INDEX=$3
-  local DISK_ADDRESS=$4
-  local DISK_FMT=$5
-  local DISK_IO=$6
-  local DISK_CACHE=$7
-  local DISK_SERIAL=$8
-  local DISK_SECTORS=$9
-  local DISK_ID="data$DISK_INDEX"
-
-  local index=""
-  [ -n "$DISK_INDEX" ] && index=",bootindex=$DISK_INDEX"
-  local result=" -drive file=$DISK_FILE,id=$DISK_ID,format=$DISK_FMT,cache=$DISK_CACHE,aio=$DISK_IO,discard=$DISK_DISCARD,detect-zeroes=on"
-
-  case "${DISK_TYPE,,}" in
-    "none" ) ;;
-    "auto" )
-      echo "$result"
-      ;;
-    "usb" )
-      result+=",if=none \
-      -device usb-storage,drive=${DISK_ID}${index}${DISK_SERIAL}${DISK_SECTORS}"
-      echo "$result"
-      ;;
-    "nvme" )
-      result+=",if=none \
-      -device nvme,drive=${DISK_ID}${index},serial=deadbeaf${DISK_INDEX}${DISK_SERIAL}${DISK_SECTORS}"
-      echo "$result"
-      ;;
-    "ide" | "sata" )
-      result+=",if=none \
-      -device ich9-ahci,id=ahci${DISK_INDEX},addr=$DISK_ADDRESS \
-      -device ide-hd,drive=${DISK_ID},bus=ahci$DISK_INDEX.0,rotation_rate=$DISK_ROTATION${index}${DISK_SERIAL}${DISK_SECTORS}"
-      echo "$result"
-      ;;
-    "blk" | "virtio-blk" )
-      result+=",if=none \
-      -device virtio-blk-pci,drive=${DISK_ID},bus=pcie.0,addr=$DISK_ADDRESS,iothread=io2${index}${DISK_SERIAL}${DISK_SECTORS}"
-      echo "$result"
-      ;;
-    "scsi" | "virtio-scsi" )
-      result+=",if=none \
-      -device virtio-scsi-pci,id=${DISK_ID}b,bus=pcie.0,addr=$DISK_ADDRESS,iothread=io2 \
-      -device scsi-hd,drive=${DISK_ID},bus=${DISK_ID}b.0,channel=0,scsi-id=0,lun=0,rotation_rate=$DISK_ROTATION${index}${DISK_SERIAL}${DISK_SECTORS}"
-      echo "$result"
-      ;;
-  esac
-
-  return 0
-}
-
-addDisk () {
-
-  local DISK_BASE=$1
-  local DISK_TYPE=$2
-  local DISK_DESC=$3
-  local DISK_SPACE=$4
-  local DISK_INDEX=$5
-  local DISK_ADDRESS=$6
-  local DISK_FMT=$7
-  local DISK_IO=$8
-  local DISK_CACHE=$9
-  local DISK_EXT DIR SPACE DATA_SIZE FS PREV_FMT PREV_EXT CUR_SIZE
-
-  DISK_EXT=$(fmt2ext "$DISK_FMT")
-  local DISK_FILE="$DISK_BASE.$DISK_EXT"
-
-  DIR=$(dirname "$DISK_FILE")
-  [ ! -d "$DIR" ] && return 0
-
-  SPACE="${DISK_SPACE// /}"
-  [ -z "$SPACE" ] && SPACE="16G"
-  [ -z "${SPACE//[0-9. ]}" ] && SPACE="${SPACE}G"
-  SPACE=$(echo "${SPACE^^}" | sed 's/MB/M/g;s/GB/G/g;s/TB/T/g')
-
-  if ! numfmt --from=iec "$SPACE" &>/dev/null; then
-    error "Invalid value for ${DISK_DESC^^}_SIZE: $DISK_SPACE" && exit 73
-  fi
-
-  DATA_SIZE=$(numfmt --from=iec "$SPACE")
-
-  if (( DATA_SIZE < 6442450944 )); then
-    error "Please increase ${DISK_DESC^^}_SIZE to at least 6 GB." && exit 73
-  fi
-
-  FS=$(stat -f -c %T "$DIR")
-  checkFS "$FS" "$DISK_FILE" "$DISK_DESC" || exit $?
-
-  if ! supportsDirect "$FS"; then
-    DISK_IO="threads"
-    DISK_CACHE="writeback"
-  fi
-
-  if ! [ -s "$DISK_FILE" ] ; then
-
-    if [[ "${DISK_FMT,,}" != "raw" ]]; then
-      PREV_FMT="raw"
-    else
-      PREV_FMT="qcow2"
-    fi
-
-    PREV_EXT=$(fmt2ext "$PREV_FMT")
-
-    if [ -s "$DISK_BASE.$PREV_EXT" ] ; then
-      convertDisk "$DISK_BASE.$PREV_EXT" "$PREV_FMT" "$DISK_FILE" "$DISK_FMT" "$DISK_BASE" "$DISK_DESC" "$FS" || exit $?
-    fi
-  fi
-
-  if [ -s "$DISK_FILE" ]; then
-
-    CUR_SIZE=$(getSize "$DISK_FILE")
-
-    if (( DATA_SIZE > CUR_SIZE )); then
-      resizeDisk "$DISK_FILE" "$SPACE" "$DISK_DESC" "$DISK_FMT" "$FS" || exit $?
-    fi
-
-  else
-
-    createDisk "$DISK_FILE" "$SPACE" "$DISK_DESC" "$DISK_FMT" "$FS" || exit $?
-
-  fi
-
-  DISK_OPTS+=$(createDevice "$DISK_FILE" "$DISK_TYPE" "$DISK_INDEX" "$DISK_ADDRESS" "$DISK_FMT" "$DISK_IO" "$DISK_CACHE" "" "")
-
-  return 0
-}
-
-addDevice () {
-
-  local DISK_DEV=$1
-  local DISK_TYPE=$2
-  local DISK_INDEX=$3
-  local DISK_ADDRESS=$4
-
-  [ -z "$DISK_DEV" ] && return 0
-  [ ! -b "$DISK_DEV" ] && error "Device $DISK_DEV cannot be found! Please add it to the 'devices' section of your compose file." && exit 55
-
-  local sectors=""
-  local result logical physical
-  result=$(fdisk -l "$DISK_DEV" | grep -m 1 -o "(logical/physical): .*" | cut -c 21-)
-  logical="${result%% *}"
-  physical=$(echo "$result" | grep -m 1 -o "/ .*" | cut -c 3-)
-  physical="${physical%% *}"
-
-  if [ -n "$physical" ]; then
-    if [[ "$physical" != "512" ]]; then
-      sectors=",logical_block_size=$logical,physical_block_size=$physical"
-      if [[ "$physical" != "4096" && "$physical" != "32768" ]]; then
-        warn "Unknown physical sector size: $physical for $DISK_DEV"
-      fi
-    fi
-  else
-    warn "Failed to determine the sector size for $DISK_DEV"
-  fi
-
-  DISK_OPTS+=$(createDevice "$DISK_DEV" "$DISK_TYPE" "$DISK_INDEX" "$DISK_ADDRESS" "raw" "$DISK_IO" "$DISK_CACHE" "" "$sectors")
-
-  return 0
-}
-
-html "Initializing disks..."
-
-[ -z "${DISK_OPTS:-}" ] && DISK_OPTS=""
-[ -z "${DISK_TYPE:-}" ] && DISK_TYPE="scsi"
-[ -z "${DISK_NAME:-}" ] && DISK_NAME="data"
-
-case "${DISK_TYPE,,}" in
-  "ide" | "sata" | "nvme" | "usb" | "scsi" | "blk" | "auto" | "none" ) ;;
-  * ) error "Invalid DISK_TYPE specified, value \"$DISK_TYPE\" is not recognized!" && exit 80 ;;
-esac
-
-if [ -z "$ALLOCATE" ]; then
-  ALLOCATE="N"
-fi
-
-if [[ "$ALLOCATE" == [Nn]* ]]; then
-  DISK_STYLE="growable"
-  DISK_ALLOC="preallocation=off"
-else
-  DISK_STYLE="preallocated"
-  DISK_ALLOC="preallocation=falloc"
-fi
-
-DISK_OPTS+=$(createDevice "$BOOT" "$DISK_TYPE" "1" "0xa" "raw" "$DISK_IO" "$DISK_CACHE" "" "")
-DISK_OPTS+=$(createDevice "$SYSTEM" "$DISK_TYPE" "2" "0xb" "raw" "$DISK_IO" "$DISK_CACHE" "" "")
-
-DISK1_FILE="$STORAGE/${DISK_NAME}"
-if [ ! -f "$DISK1_FILE.img" ] && [ -f "$STORAGE/data${DISK_SIZE}.img" ]; then
-  # Fallback for legacy installs
-  mv "$STORAGE/data${DISK_SIZE}.img" "$DISK1_FILE.img"
-fi
-
-DISK2_FILE="/storage2/${DISK_NAME}2"
-if [ ! -f "$DISK2_FILE.img" ]; then
-  # Fallback for legacy installs
-  FALLBACK="/storage2/data.img"
-  if [[ -f "$DISK1_FILE.img" && -f "$FALLBACK" ]]; then
-    SIZE1=$(stat -c%s "$FALLBACK")
-    SIZE2=$(stat -c%s "$DISK1_FILE.img")
-    if [[ SIZE1 -ne SIZE2 ]]; then
-      mv "$FALLBACK" "$DISK2_FILE.img"
-    fi
-  fi
-fi
-
-DISK3_FILE="/storage3/${DISK_NAME}3"
-if [ ! -f "$DISK3_FILE.img" ]; then
-  # Fallback for legacy installs
-  FALLBACK="/storage3/data.img"
-  if [[ -f "$DISK1_FILE.img" && -f "$FALLBACK" ]]; then
-    SIZE1=$(stat -c%s "$FALLBACK")
-    SIZE2=$(stat -c%s "$DISK1_FILE.img")
-    if [[ SIZE1 -ne SIZE2 ]]; then
-      mv "$FALLBACK" "$DISK3_FILE.img"
-    fi
-  fi
-fi
-
-DISK4_FILE="/storage4/${DISK_NAME}4"
-
-: "${DISK2_SIZE:=""}"
-: "${DISK3_SIZE:=""}"
-: "${DISK4_SIZE:=""}"
-
-: "${DEVICE:=""}"        # Docker variables to passthrough a block device, like /dev/vdc1.
-: "${DEVICE2:=""}"
-: "${DEVICE3:=""}"
-: "${DEVICE4:=""}"
-
-[ -z "$DEVICE" ] && [ -b "/disk" ] && DEVICE="/disk"
-[ -z "$DEVICE" ] && [ -b "/disk1" ] && DEVICE="/disk1"
-[ -z "$DEVICE2" ] && [ -b "/disk2" ] && DEVICE2="/disk2"
-[ -z "$DEVICE3" ] && [ -b "/disk3" ] && DEVICE3="/disk3"
-[ -z "$DEVICE4" ] && [ -b "/disk4" ] && DEVICE4="/disk4"
-
-[ -z "$DEVICE" ] && [ -b "/dev/disk1" ] && DEVICE="/dev/disk1"
-[ -z "$DEVICE2" ] && [ -b "/dev/disk2" ] && DEVICE2="/dev/disk2"
-[ -z "$DEVICE3" ] && [ -b "/dev/disk3" ] && DEVICE3="/dev/disk3"
-[ -z "$DEVICE4" ] && [ -b "/dev/disk4" ] && DEVICE4="/dev/disk4"
-
-if [ -n "$DEVICE" ]; then
-  addDevice "$DEVICE" "$DISK_TYPE" "3" "0xc" || exit $?
-else
-  addDisk "$DISK1_FILE" "$DISK_TYPE" "disk" "$DISK_SIZE" "3" "0xc" "$DISK_FMT" "$DISK_IO" "$DISK_CACHE" || exit $?
-fi
-
-if [ -n "$DEVICE2" ]; then
-  addDevice "$DEVICE2" "$DISK_TYPE" "4" "0xd" || exit $?
-else
-  addDisk "$DISK2_FILE" "$DISK_TYPE" "disk2" "$DISK2_SIZE" "4" "0xd" "$DISK_FMT" "$DISK_IO" "$DISK_CACHE" || exit $?
-fi
-
-if [ -n "$DEVICE3" ]; then
-  addDevice "$DEVICE3" "$DISK_TYPE" "5" "0xe" || exit $?
-else
-  addDisk "$DISK3_FILE" "$DISK_TYPE" "disk3" "$DISK3_SIZE" "5" "0xe" "$DISK_FMT" "$DISK_IO" "$DISK_CACHE" || exit $?
-fi
-
-if [ -n "$DEVICE4" ]; then
-  addDevice "$DEVICE4" "$DISK_TYPE" "6" "0xf" || exit $?
-else
-  addDisk "$DISK4_FILE" "$DISK_TYPE" "disk4" "$DISK4_SIZE" "6" "0xf" "$DISK_FMT" "$DISK_IO" "$DISK_CACHE" || exit $?
-fi
-
-DISK_OPTS+=" -object iothread,id=io2"
-
-html "Initialized disks successfully..."
-return 0

src/display.sh

@@ -6,24 +6,47 @@ set -Eeuo pipefail
 : "${GPU:="N"}"         # GPU passthrough
 : "${VGA:="virtio"}"    # VGA adaptor
 : "${DISPLAY:="none"}"  # Display type
+: "${LOSSY:="N"}"       # Lossy VNC compression
 : "${RENDERNODE:="/dev/dri/renderD128"}"  # Render node
 
+# Sanitize variables
+VGA=$(strip "$VGA")
+LOSSY=$(strip "$LOSSY")
+DISPLAY=$(strip "$DISPLAY")
+RENDERNODE=$(strip "$RENDERNODE")
+
 CPU_VENDOR=$(lscpu | awk '/Vendor ID/{print $3}')
 
-if [[ "$GPU" != [Yy1]* || "$CPU_VENDOR" != "GenuineIntel" || "$ARCH" != "amd64" ]]; then
+# The accelerated Intel render-node path is restricted to x86 Intel hosts;
+# other platforms retain the normal QEMU display backend.
+if ! enabled "$GPU" || isAmdCpu || [[ "$ARCH" != "amd64" ]]; then
 
+  # A disabled frontend also removes the emulated VGA device to keep the guest
+  # hardware layout headless.
   [[ "${DISPLAY,,}" == "none" ]] && VGA="none"
-  DISPLAY_OPTS="-display $DISPLAY -vga $VGA"
+
+  if enabled "$LOSSY" && [[ "${DISPLAY,,}" == vnc=* ]]; then
+    DISPLAY+=",lossy=on"
+  fi
+
+  DISPLAY_OPTS="-display ${DISPLAY} -vga ${VGA}"
   return 0
 
 fi
 
-DISPLAY_OPTS="-display egl-headless,rendernode=$RENDERNODE"
+msg="Configuring display drivers..."
+
+html "$msg"
+enabled "$DEBUG" && echo "$msg"
+
+DISPLAY_OPTS="-display egl-headless,rendernode=${RENDERNODE}"
 DISPLAY_OPTS+=" -vga $VGA"
 
 [ ! -d /dev/dri ] && mkdir -m 755 /dev/dri
 
 # Extract the card number from the render node
+# Linux renderD128 corresponds to card0; derive both device minors because
+# container device bindings may expose only the render node.
 CARD_NUMBER=$(echo "$RENDERNODE" | grep -oP '(?<=renderD)\d+')
 CARD_DEVICE="/dev/dri/card$((CARD_NUMBER - 128))"
 
@@ -39,7 +62,8 @@ if [ ! -c "$RENDERNODE" ]; then
   fi
 fi
 
-addPackage "xserver-xorg-video-intel" "Intel GPU drivers"
-addPackage "qemu-system-modules-opengl" "OpenGL module"
+if [ ! -c "$RENDERNODE" ] || [ ! -r "$RENDERNODE" ] || [ ! -w "$RENDERNODE" ]; then
+  warn "render device '${RENDERNODE}' is unavailable or inaccessible."
+fi
 
 return 0

src/entry.sh

@@ -1,37 +1,64 @@
 #!/usr/bin/env bash
 set -Eeuo pipefail
 
+: "${PLATFORM:="x64"}"
 : "${APP:="Virtual DSM"}"
 : "${SUPPORT:="https://github.com/vdsm/virtual-dsm"}"
 
+: "${USB:="N"}"
+: "${AUDIO:="N"}"
+: "${VGA:="none"}"
+: "${DISPLAY:="none"}"
+: "${WEB_PORT:="5000"}"
+: "${DISK_OFFSET:="2"}"
+: "${DISK_SIZE:="256G"}"
+: "${RAM_MINIMUM:="1G"}"
+: "${DISK_MINIMUM:="6G"}"
+: "${BOOT_MODE:="legacy"}"
+
 cd /run
 
+. start.sh      # Startup hook
 . utils.sh      # Load functions
-. reset.sh      # Initialize system
+. init.sh       # Initialize system
+. memory.sh     # Check memory
+. server.sh     # Start webserver
+. download.sh   # Load functions
 . install.sh    # Run installation
 . disk.sh       # Initialize disks
 . display.sh    # Initialize graphics
+. prepare.sh    # Prepare for launch
 . network.sh    # Initialize network
+. boot.sh       # Configure boot
 . proc.sh       # Initialize processor
 . serial.sh     # Initialize serialport
 . power.sh      # Configure shutdown
+. balloon.sh    # Initialize ballooning
 . config.sh     # Configure arguments
+. finish.sh     # Finish initialization
 
 trap - ERR
 
-version=$(qemu-system-x86_64 --version | head -n 1 | cut -d '(' -f 1 | awk '{ print $NF }')
-info "Booting $APP using QEMU v$version..."
+cmd=(qemu-system-x86_64)
+version=$("${cmd[@]}" --version | awk 'NR==1 { print $4 }')
+info "Booting $APP using QEMU v$version..." && echo
 
-if [[ "$CONSOLE" == [Yy]* ]]; then
-  exec qemu-system-x86_64 ${ARGS:+ $ARGS}
+if ! enabled "$SHUTDOWN"; then
+  exec "${cmd[@]}" ${ARGS:+ $ARGS}
 fi
 
-{ qemu-system-x86_64 ${ARGS:+ $ARGS} >"$QEMU_OUT" 2>"$QEMU_LOG"; rc=$?; } || :
-(( rc != 0 )) && error "$(<"$QEMU_LOG")" && exit 15
+if ! interactive; then
+  "${cmd[@]}" ${ARGS:+ $ARGS} &
+else
+  startConsole
+  startQemu "${cmd[@]}" ${ARGS:+ $ARGS}
+fi
 
-terminal
-tail -fn +0 "$QEMU_LOG" 2>/dev/null &
-cat "$QEMU_TERM" 2>/dev/null & wait $! || :
+pid=$!
+rc=0
+
+wait "$pid" || rc=$?
+[ -f "$QEMU_END" ] && exit "$rc"
 
 sleep 1 & wait $!
-[ ! -f "$QEMU_END" ] && finish 0
+finish "$rc"

src/finish.sh

@@ -0,0 +1,18 @@
+#!/usr/bin/env bash
+set -Eeuo pipefail
+
+fKill "progress.sh"
+
+if [ -s "$QEMU_DIR/qemu.host" ] && [[ "$(<"$QEMU_DIR/qemu.host")" == "172.17."* ]]; then
+  warn "your container IP starts with 172.17.* which will cause conflicts when you install the Container Manager package inside DSM!"
+fi
+
+if enabled "$DEBUG"; then
+  echo
+  printf "QEMU arguments:\n\n    %s\n\n" "${ARGS// -/$'\n    -'}"
+fi
+
+# Must always remain the very last command
+enableTrap
+
+return 0

src/install.sh

@@ -1,305 +1,662 @@
 #!/usr/bin/env bash
 set -Eeuo pipefail
 
-: "${URL:=""}"    # URL of the PAT file to be downloaded.
+: "${TZ:=""}"         # System timezone
+: "${COUNTRY:=""}"    # Country code for mirror
+: "${URL:=""}"        # URL of the PAT file to be downloaded.
 
-if [ -f "$STORAGE/dsm.ver" ]; then
-  BASE=$(<"$STORAGE/dsm.ver")
-  BASE="${BASE//[![:print:]]/}"
-  [ -z "$BASE" ] && BASE="DSM_VirtualDSM_69057"
-else
-  # Fallback for old installs
-  BASE="DSM_VirtualDSM_42962"
-fi
+TZ=$(strip "$TZ")
+COUNTRY=$(strip "$COUNTRY")
 
-FN="boot.pat"
-DIR=$(find / -maxdepth 1 -type d -iname "$FN" -print -quit)
-[ ! -d "$DIR" ] && DIR=$(find "$STORAGE" -maxdepth 1 -type d -iname "$FN" -print -quit)
+checkDsmFilesystem() {
 
-if [ -d "$DIR" ]; then
-  BASE="DSM_VirtualDSM" && URL="file://$DIR" 
-  if [[ ! -s "$STORAGE/$BASE.boot.img" || ! -s "$STORAGE/$BASE.system.img" ]]; then
-    error "The bind $DIR maps to a file that does not exist!" && exit 65
-  fi
-fi
+  local fs="$1"
 
-FILE=$(find / -maxdepth 1 -type f -iname "$FN" -print -quit)
-[ ! -s "$FILE" ] && FILE=$(find "$STORAGE" -maxdepth 1 -type f -iname "$FN" -print -quit)
-[ -s "$FILE" ] && BASE="DSM_VirtualDSM" && URL="file://$FILE" 
-
-if [ -n "$URL" ] && [ ! -s "$FILE" ] && [ ! -d "$DIR" ]; then
-  BASE=$(basename "$URL" .pat)
-  if [ ! -s "$STORAGE/$BASE.system.img" ]; then
-    BASE=$(basename "${URL%%\?*}" .pat)
-    : "${BASE//+/ }"; printf -v BASE '%b' "${_//%/\\x}"
-    BASE=$(echo "$BASE" | sed -e 's/[^A-Za-z0-9._-]/_/g')
-  fi
-  if [[ "${URL,,}" != "http"* && "${URL,,}" != "file:"* ]] ; then
-    [ ! -s "$STORAGE/$BASE.pat" ] && error "Invalid URL:  $URL" && exit 65
-    URL="file://$STORAGE/$BASE.pat"
-  fi
-fi
-
-if [[ -s "$STORAGE/$BASE.boot.img" && -s "$STORAGE/$BASE.system.img" ]]; then
-  return 0  # Previous installation found
-fi
-
-html "Please wait while Virtual DSM is being installed..."
-
-DL=""
-DL_CHINA="https://cndl.synology.cn/download/DSM"
-DL_GLOBAL="https://global.synologydownload.com/download/DSM"
-
-[[ "${URL,,}" == *"cndl.synology"* ]] && DL="$DL_CHINA"
-[[ "${URL,,}" == *"global.synology"* ]] && DL="$DL_GLOBAL"
-
-if [ -z "$DL" ]; then
-  [ -z "$COUNTRY" ] && setCountry
-  [ -z "$COUNTRY" ] && info "Warning: could not detect country to select mirror!"
-  [[ "${COUNTRY^^}" == "CN" ]] && DL="$DL_CHINA" || DL="$DL_GLOBAL"
-fi
-
-if [ -z "$URL" ]; then
-  URL="$DL/release/7.2.2/72806/DSM_VirtualDSM_72806.pat"
-fi
-
-if [ ! -s "$FILE" ]; then
-  BASE=$(basename "${URL%%\?*}" .pat)
-  : "${BASE//+/ }"; printf -v BASE '%b' "${_//%/\\x}"
-  BASE=$(echo "$BASE" | sed -e 's/[^A-Za-z0-9._-]/_/g')
-fi
-
-if [[ "$URL" != "file://$STORAGE/$BASE.pat" ]]; then
-  rm -f "$STORAGE/$BASE.pat"
-fi
-
-rm -f "$STORAGE/$BASE.agent"
-rm -f "$STORAGE/$BASE.boot.img"
-rm -f "$STORAGE/$BASE.system.img"
-
-# Check filesystem
-FS=$(stat -f -c %T "$STORAGE")
-
-if [[ "${FS,,}" == "overlay"* ]]; then
-  info "Warning: the filesystem of $STORAGE is OverlayFS, this usually means it was binded to an invalid path!"
-fi
-
-if [[ "${FS,,}" == "fuse"* ]]; then
-  info "Warning: the filesystem of $STORAGE is FUSE, this extra layer will negatively affect performance!"
-fi
-
-if [[ "${FS,,}" == "ecryptfs" || "${FS,,}" == "tmpfs" ]]; then
-  info "Warning: the filesystem of $STORAGE is $FS, which does not support O_DIRECT mode, adjusting settings..."
-fi
-
-if [[ "${FS,,}" == "fat"* || "${FS,,}" == "vfat"* || "${FS,,}" == "msdos"* ]]; then
-  error "Unable to install on $FS filesystems, please use a different filesystem for /storage." && exit 61
-fi
-
-if [[ "${FS,,}" != "exfat"* && "${FS,,}" != "ntfs"* && "${FS,,}" != "unknown"* ]]; then
-  TMP="$STORAGE/tmp"
-else
-  TMP="/tmp/dsm"
-  TMP_SPACE=2147483648
-  SPACE=$(df --output=avail -B 1 /tmp | tail -n 1)
-  SPACE_MB=$(formatBytes "$SPACE")
-  if (( TMP_SPACE > SPACE )); then
-    error "Not enough free space inside the container, have $SPACE_MB available but need at least 2 GB." && exit 93
-  fi
-fi
-
-rm -rf "$TMP" && mkdir -p "$TMP"
-
-# Check free diskspace
-ROOT_SPACE=536870912
-SPACE=$(df --output=avail -B 1 / | tail -n 1)
-SPACE_MB=$(formatBytes "$SPACE" "down")
-(( ROOT_SPACE > SPACE )) && error "Not enough free space inside the container, have $SPACE_MB available but need at least 500 MB." && exit 96
-
-MIN_SPACE=15032385536
-SPACE=$(df --output=avail -B 1 "$STORAGE" | tail -n 1)
-SPACE_GB=$(formatBytes "$SPACE")
-(( MIN_SPACE > SPACE )) && error "Not enough free space for installation in $STORAGE, have $SPACE_GB available but need at least 14 GB." && exit 94
-
-# Check if output is to interactive TTY
-if [ -t 1 ]; then
-  PROGRESS="--progress=bar:noscroll"
-else
-  PROGRESS="--progress=dot:giga"
-fi
-
-if [[ "$URL" == "file://"* ]]; then
-  MSG="Copying DSM"
-  ERR="Failed to copy ${URL:7}"
-  info "Install: Copying installation image..."
-else
-  MSG="Downloading DSM"
-  ERR="Failed to download $URL"
-  info "Install: Downloading $BASE.pat..."
-fi
-
-html "$MSG..."
-
-PAT="/$BASE.pat"
-rm -f "$PAT"
-
-if [[ "$URL" == "file://"* ]]; then
-
-  if [ ! -f "${URL:7}" ]; then
-    error "File '${URL:7}' does not exist!" && exit 65
+  if [[ "${fs,,}" == "overlay"* && "${ENGINE,,}" == "docker" ]]; then
+    warn "the filesystem of $STORAGE is OverlayFS, this usually means it was binded to an invalid path!"
   fi
 
-  cp "${URL:7}" "$PAT"
+  if [[ "${fs,,}" == "fuse"* ]]; then
+    warn "the filesystem of $STORAGE is FUSE, this extra layer will negatively affect performance!"
+  fi
 
-else
+  if [[ "${fs,,}" == "ecryptfs" || "${fs,,}" == "tmpfs" ]]; then
+    warn "the filesystem of $STORAGE is $fs, which does not support O_DIRECT mode, adjusting settings..."
+  fi
 
-  SIZE=0
-  [[ "${URL,,}" == *"_72806.pat" ]] && SIZE=361010261
-  [[ "${URL,,}" == *"_69057.pat" ]] && SIZE=363837333
-  [[ "${URL,,}" == *"_42218.pat" ]] && SIZE=379637760
+  if [[ "${fs,,}" == "fat"* || "${fs,,}" == "vfat"* || "${fs,,}" == "msdos"* ]]; then
+    error "Unable to install on $fs filesystems, please use a different filesystem for /storage."
+    return 61
+  fi
 
-  /run/progress.sh "$PAT" "$SIZE" "$MSG ([P])..." &
+  return 0
+}
 
-  { wget "$URL" -O "$PAT" -q --no-check-certificate --timeout=10 --no-http-keep-alive --show-progress "$PROGRESS"; rc=$?; } || :
+checkDsmSpace() {
+
+  local rootSpace=536870912
+  local minSpace=15032385536
+  local space available
+
+  space=$(df --output=avail -B 1 / | tail -n 1) || return $?
+  available=$(formatBytes "$space" "down") || return $?
+
+  if (( rootSpace > space )); then
+    error "Not enough free space inside the container, have $available available but need at least 500 MB."
+    return 96
+  fi
+
+  space=$(df --output=avail -B 1 "$STORAGE" | tail -n 1) || return $?
+  available=$(formatBytes "$space") || return $?
+
+  if (( minSpace > space )); then
+    error "Not enough free space for installation in $STORAGE, have $available available but need at least 14 GB."
+    return 94
+  fi
+
+  return 0
+}
+
+downloadFile() {
+
+  local url="$1"
+  local pat="$2"
+  local msg="$3"
+  local connections="${4:-1}"
+
+  downloadToFile \
+    "$url" \
+    "$pat" \
+    "$msg" \
+    "0" \
+    "$connections" \
+    "Y"
+}
+
+downloadPat() {
+
+  local pat="$1"
+  local msg err
+
+  if [[ "$URL" == "file://"* ]]; then
+    msg="Copying DSM"
+    err="Failed to copy ${URL:7}"
+    info "Install: Copying installation image..."
+    html "$msg..." || return $?
+
+    rm -f "$pat" || return $?
+
+    if [ ! -f "${URL:7}" ]; then
+      error "File '${URL:7}' does not exist!"
+      return 65
+    fi
+
+    cp "${URL:7}" "$pat" || return $?
+
+  else
+
+    msg="Downloading DSM"
+    err="Failed to download $URL"
+    info "Install: Downloading $BASE.pat..."
+
+    downloadRetry \
+      "$pat" \
+      "$CONNECTIONS" \
+      "5" \
+      "$BASE.pat" \
+      "0" \
+      "$URL" \
+      "$pat" \
+      "$msg" || return 69
+  fi
+
+  if [ ! -s "$pat" ]; then
+    error "$err"
+    return 69
+  fi
+
+  return 0
+}
+
+extractPat() {
+
+  local pat="$1"
+  local tmp="$2"
+  local size="$3"
+  local msg="Extracting installation image..."
+  local rc
+
+  info "Install: $msg" && html "$msg" || return $?
+  /run/progress.sh "$tmp" "$size" "$msg ([P])..." &
+
+  # Newer PAT files are normal tar archives; older encrypted/proprietary forms
+  # require the bundled extractor as a compatibility fallback.
+  if { tar tf "$pat"; } >/dev/null 2>&1; then
+
+    tar xpf "$pat" -C "$tmp/." || {
+      rc=$?
+      fKill "progress.sh"
+      return "$rc"
+    }
+
+  else
+
+    { (cd "$tmp" && python3 /run/extract.py -i "$pat" -d 2>/run/extract.log); rc=$?; } || :
+
+    if (( rc != 0 )); then
+      fKill "progress.sh"
+      cat /run/extract.log
+      error "Failed to extract PAT file, reason $rc"
+      return 63
+    fi
+
+  fi
 
   fKill "progress.sh"
+  return 0
+}
 
-  (( rc == 3 )) && error "$ERR , cannot write file (disk full?)" && exit 69
-  (( rc == 4 )) && error "$ERR , network failure!" && exit 69
-  (( rc == 8 )) && error "$ERR , server issued an error response!" && exit 69
-  (( rc != 0 )) && error "$ERR , reason: $rc" && exit 69
+createSystemImage() {
 
-fi
+  local tmp="$1"
+  local fs="$2"
+  local msg="Preparing system partition..."
 
-[ ! -s "$PAT" ] && error "$ERR" && exit 69
+  info "Install: $msg" && html "$msg" || return $?
 
-SIZE=$(stat -c%s "$PAT")
+  # The PAT boot archive becomes the persistent QEMU boot disk after its
+  # companion system partition has been assembled.
+  DSM_BOOT=$(find "$tmp" -name "*.bin.zip" -print -quit) || return $?
 
-if ((SIZE<250000000)); then
-  error "The specified PAT file is probably an update pack as it's too small." && exit 62
-fi
-
-MSG="Extracting installation image..."
-info "Install: $MSG" && html "$MSG"
-
-if { tar tf "$PAT"; } >/dev/null 2>&1; then
-
-  tar xpf "$PAT" -C "$TMP/."
-
-else
-
-  { (cd "$TMP" && python3 /run/extract.py -i "$PAT" -d 2>/run/extract.log); rc=$?; } || :
-
-  if (( rc != 0 )); then
-    cat /run/extract.log
-    error "Failed to extract PAT file, reason $rc" && exit 63
+  if [ -z "$DSM_BOOT" ]; then
+    error "The PAT file contains no boot image."
+    return 67
   fi
 
-fi
-
-MSG="Preparing system partition..."
-info "Install: $MSG" && html "$MSG"
-
-BOOT=$(find "$TMP" -name "*.bin.zip")
-[ ! -s "$BOOT" ] && error "The PAT file contains no boot image." && exit 67
-
-BOOT=$(echo "$BOOT" | head -c -5)
-unzip -q -o "$BOOT".zip -d "$TMP"
-
-SYSTEM="$STORAGE/$BASE.system.img"
-rm -f "$SYSTEM"
-
-# Check free diskspace
-SYSTEM_SIZE=10738466816
-SPACE=$(df --output=avail -B 1 "$STORAGE" | tail -n 1)
-SPACE_MB=$(formatBytes "$SPACE")
-
-if (( SYSTEM_SIZE > SPACE )); then
-  error "Not enough free space in $STORAGE to create a 10 GB system disk, have only $SPACE_MB available." && exit 97
-fi
-
-if ! touch "$SYSTEM"; then
-  error "Could not create file $SYSTEM for the system disk." && exit 98
-fi
-
-if [[ "${FS,,}" == "btrfs" ]]; then
-  { chattr +C "$SYSTEM"; } || :
-  FA=$(lsattr "$SYSTEM")
-  if [[ "$FA" != *"C"* ]]; then
-    error "Failed to disable COW for system image $SYSTEM on ${FS^^} filesystem."
+  if [ ! -s "$DSM_BOOT" ]; then
+    error "The PAT boot image archive is empty."
+    return 67
   fi
-fi
 
-if ! fallocate -l "$SYSTEM_SIZE" "$SYSTEM" &>/dev/null; then
-  if ! fallocate -l -x "$SYSTEM_SIZE" "$SYSTEM"; then
-    if ! truncate -s "$SYSTEM_SIZE" "$SYSTEM"; then
-      rm -f "$SYSTEM"
-      error "Could not allocate file $SYSTEM for the system disk." && exit 98
+  local bootTmp="$tmp/boot" bootBase
+  bootBase="$(basename "${DSM_BOOT%.zip}")"
+
+  rm -rf "$bootTmp" || return $?
+
+  if ! makeDir "$bootTmp"; then
+    error "Failed to create directory \"$bootTmp\" !"
+    return 93
+  fi
+
+  if [[ "${fs,,}" == "btrfs" ]]; then
+    { chattr +C "$bootTmp"; } || :
+  fi
+
+  7z x -y -o"$bootTmp" "$DSM_BOOT" >/dev/null || return $?
+  DSM_BOOT="$bootTmp/$bootBase"
+
+  if [ ! -s "$DSM_BOOT" ]; then
+    error "The PAT boot image could not be extracted."
+    return 67
+  fi
+
+  if [[ "${fs,,}" == "btrfs" ]]; then
+    local attrs
+    attrs=$(lsattr "$DSM_BOOT") || return $?
+    if [[ "$attrs" != *"C"* ]]; then
+      error "Failed to disable COW for boot image $DSM_BOOT on ${fs^^} filesystem."
     fi
   fi
-fi
 
-PART="$TMP/partition.fdisk"
+  SYSTEM="$STORAGE/$BASE.system.img"
+  rm -f "$SYSTEM" || return $?
 
-{       echo "label: dos"
-        echo "label-id: 0x6f9ee2e9"
-        echo "device: $SYSTEM"
-        echo "unit: sectors"
-        echo "sector-size: 512"
-        echo ""
-        echo "${SYSTEM}1 : start=        2048, size=    16777216, type=83"
-        echo "${SYSTEM}2 : start=    16779264, size=     4194304, type=82"
-} > "$PART"
+  # Check free diskspace
+  local systemSize=10738466816
+  local space available
 
-sfdisk -q "$SYSTEM" < "$PART"
+  space=$(df --output=avail -B 1 "$STORAGE" | tail -n 1) || return $?
+  available=$(formatBytes "$space") || return $?
 
-MOUNT="$TMP/system"
-rm -rf "$MOUNT" && mkdir -p "$MOUNT"
+  if (( systemSize > space )); then
+    error "Not enough free space in $STORAGE to create a 10 GB system disk, have only $available available."
+    return 97
+  fi
 
-MSG="Extracting system partition..."
-info "Install: $MSG" && html "$MSG"
+  if ! touch "$SYSTEM"; then
+    error "Could not create file $SYSTEM for the system disk."
+    return 98
+  fi
 
-HDA="$TMP/hda1"
-IDB="$TMP/indexdb"
-PKG="$TMP/packages"
-HDP="$TMP/synohdpack_img"
+  setOwner "$SYSTEM" || warn "failed to set the owner for \"$SYSTEM\" !"
 
-[ ! -s "$HDA.tgz" ] && error "The PAT file contains no OS image." && exit 64
-mv "$HDA.tgz" "$HDA.txz"
+  if [[ "${fs,,}" == "btrfs" ]]; then
+    { chattr +C "$SYSTEM"; } || :
+    local attrs
+    attrs=$(lsattr "$SYSTEM") || return $?
+    if [[ "$attrs" != *"C"* ]]; then
+      error "Failed to disable COW for system image $SYSTEM on ${fs^^} filesystem."
+    fi
+  fi
 
-[ -d "$PKG" ] && mv "$PKG/" "$MOUNT/.SynoUpgradePackages/"
-rm -f "$MOUNT/.SynoUpgradePackages/ActiveInsight-"*
+  if ! fallocate -l "$systemSize" "$SYSTEM" &>/dev/null; then
+    if ! fallocate -l -x "$systemSize" "$SYSTEM"; then
+      if ! truncate -s "$systemSize" "$SYSTEM"; then
+        rm -f "$SYSTEM"
+        error "Could not allocate file $SYSTEM for the system disk."
+        return 98
+      fi
+    fi
+  fi
 
-if [ -s "$IDB.txz" ]; then
-  INDEX_DB="$MOUNT/usr/syno/synoman/indexdb"
-  mkdir -p "$INDEX_DB"
-fi
+  # Recreate Synology's expected DOS partition layout inside the fixed 10 GiB
+  # system image before populating the ext4 root partition.
+  local part="$tmp/partition.fdisk"
 
-LABEL="1.44.1-42218"
-OFFSET="1048576"    # 2048 * 512
-NUMBLOCKS="2097152" # (16777216 * 512) / 4096
-MSG="Installing system partition..."
+  if ! {
+    echo "label: dos"
+    echo "label-id: 0x6f9ee2e9"
+    echo "device: $SYSTEM"
+    echo "unit: sectors"
+    echo "sector-size: 512"
+    echo ""
+    echo "${SYSTEM}1 : start=        2048, size=    16777216, type=83"
+    echo "${SYSTEM}2 : start=    16779264, size=     4194304, type=82"
+  } > "$part"; then
+    return 1
+  fi
 
-fakeroot -- bash -c "set -Eeu;\
-  [ -s $HDP.txz ] && tar xpfJ $HDP.txz --absolute-names -C $MOUNT/;\
-  [ -s $IDB.txz ] && tar xpfJ $IDB.txz --absolute-names -C $INDEX_DB/;\
-  tar xpfJ $HDA.txz --absolute-names --skip-old-files -C $MOUNT/;\
-  printf '%b%s%b' '\E[1;34m❯ \E[1;36m' 'Install: $MSG' '\E[0m\n';\
-  mke2fs -q -t ext4 -b 4096 -d $MOUNT/ -L $LABEL -F -E offset=$OFFSET $SYSTEM $NUMBLOCKS"
+  sfdisk -q "$SYSTEM" < "$part" || return $?
 
-rm -rf "$MOUNT"
-echo "$BASE" > "$STORAGE/dsm.ver"
+  local mount="$tmp/system"
+  rm -rf "$mount" || return $?
 
-if [[ "$URL" == "file://$STORAGE/$BASE.pat" ]]; then
-  rm -f "$PAT"
-else
-  mv -f "$PAT" "$STORAGE/$BASE.pat"
-fi
+  if ! makeDir "$mount"; then
+    error "Failed to create directory \"$mount\" !"
+    return 93
+  fi
 
-mv -f "$BOOT" "$STORAGE/$BASE.boot.img"
-rm -rf "$TMP"
+  return 0
+}
 
-html "Booting DSM instance..."
-sleep 1.2
+installSystemPartition() {
 
+  local tmp="$1"
+  local mount="$tmp/system"
+  local msg="Extracting system partition..."
+
+  info "Install: $msg" && html "$msg" || return $?
+
+  local hda="$tmp/hda1"
+  local idb="$tmp/indexdb"
+  local pkg="$tmp/packages"
+  local hdp="$tmp/synohdpack_img"
+
+  if [ ! -s "$hda.tgz" ]; then
+    error "The PAT file contains no OS image."
+    return 64
+  fi
+
+  mv "$hda.tgz" "$hda.txz" || return $?
+
+  if [ -d "$pkg" ]; then
+    mv "$pkg/" "$mount/.SynoUpgradePackages/" || return $?
+  fi
+
+  rm -f "$mount/.SynoUpgradePackages/ActiveInsight-"* || return $?
+
+  local indexDb="$mount/usr/syno/synoman/indexdb"
+
+  if [ -s "$idb.txz" ]; then
+    mkdir -p "$indexDb" || return $?
+  fi
+
+  local label="1.44.1-42218"
+  local offset="1048576"    # 2048 * 512
+  local numBlocks="2097152" # (16777216 * 512) / 4096
+  local rc
+  msg="Installing system partition..."
+
+  # Build the ext4 filesystem directly from the extracted tree under fakeroot,
+  # preserving archive ownership without mounting a loop device.
+  if fakeroot -- bash -c "set -Eeu;\
+    [ -s $hdp.txz ] && tar xpfJ $hdp.txz --absolute-names -C $mount/;\
+    [ -s $idb.txz ] && tar xpfJ $idb.txz --absolute-names -C $indexDb/;\
+    tar xpfJ $hda.txz --absolute-names --skip-old-files -C $mount/;\
+    printf '%b%s%b' '\E[1;34m❯ \E[1;36m' 'Install: $msg' '\E[0m\n';\
+    mke2fs -q -t ext4 -b 4096 -d $mount/ -L $label -F -E offset=$offset $SYSTEM $numBlocks"; then
+    :
+  else
+    rc=$?
+    return "$rc"
+  fi
+
+  rm -rf "$mount" || return $?
+  return 0
+}
+
+checkSse42() {
+
+  if disabled "$KVM" || [[ "${PLATFORM,,}" != "x64" ]]; then
+    return 0
+  fi
+
+  if ! hasFlag "sse4_2"; then
+    error "Your CPU does not have the SSE4.2 instruction set that Virtual DSM requires!"
+    enabled "$DEBUG" || return 88
+  fi
+
+  return 0
+}
+
+sanitizePatBase() {
+
+  local source="$1"
+  local base
+
+  base=$(basename "${source%%\?*}" .pat) || return 1
+  printf -v base '%b' "${base//%/\\x}" || return 1
+  base="${base//[!A-Za-z0-9._-]/_}"
+
+  printf '%s' "$base"
+}
+
+reservePorts() {
+
+  local port ports=""
+  local hostPorts="${HOST_PORTS:-}"
+
+  # Older configurations may reserve DSM's web ports for the container.
+  # They now need to be forwarded to the guest instead.
+  for port in ${hostPorts//,/ }; do
+
+    case "${port,,}" in
+      5000|5000/tcp|5001|5001/tcp)
+        continue ;;
+    esac
+
+    ports+="${ports:+,}$port"
+
+  done
+
+  HOST_PORTS="$ports"
+
+  # NAT can fall back to user-mode networking after this point,
+  # so always add the DSM web interface ports for non-DHCP networking.
+  USER_PORTS="${USER_PORTS:+$USER_PORTS,}5000/tcp,5001/tcp,80/tcp,443/tcp,445/tcp"
+
+  return 0
+}
+
+prepareMac() {
+
+  local file="$STORAGE/$PROCESS.mac"
+  local legacy="$STORAGE/dsm.mac"
+  local container mac=""
+
+  # An explicitly configured MAC remains network.sh's responsibility.
+  [ -n "${MAC:-}" ] && return 0
+  [ -s "$file" ] && return 0
+
+  # Preserve the address generated by older Virtual DSM releases.
+  if [ -s "$legacy" ]; then
+    mac=$(readFile "$legacy") || return $?
+  fi
+
+  if [ -z "$mac" ]; then
+    container=$(containerID) || return $?
+    mac=$(echo "$container" | md5sum |
+      sed 's/^\(..\)\(..\)\(..\)\(..\)\(..\).*$/02:11:32:\3:\4:\5/') || return $?
+  fi
+
+  if ! writeState "mac" "${mac^^}"; then
+    error "Failed to write MAC address to \"$file\" !"
+    return 28
+  fi
+
+  return 0
+}
+
+getCountry() {
+
+  local url=$1
+  local query=$2
+  local json result
+
+  { json=$(curl -m 5 -H "Accept: application/json" -sfk "$url"); local rc=$?; } || :
+  (( rc != 0 )) && return 0
+
+  { result=$(echo "$json" | jq -r "$query" 2> /dev/null); rc=$?; } || :
+  (( rc != 0 )) && return 0
+
+  [[ ${#result} -ne 2 ]] && return 0
+  [[ "${result^^}" == "XX" ]] && return 0
+
+  COUNTRY="${result^^}"
+
+  return 0
+}
+
+setCountry() {
+
+  [[ "${TZ,,}" == "asia/harbin" ]] && COUNTRY="CN"
+  [[ "${TZ,,}" == "asia/beijing" ]] && COUNTRY="CN"
+  [[ "${TZ,,}" == "asia/urumqi" ]] && COUNTRY="CN"
+  [[ "${TZ,,}" == "asia/kashgar" ]] && COUNTRY="CN"
+  [[ "${TZ,,}" == "asia/shanghai" ]] && COUNTRY="CN"
+  [[ "${TZ,,}" == "asia/chongqing" ]] && COUNTRY="CN"
+
+  # Country detection is best-effort and tries independent services in order;
+  # failure leaves mirror selection at its global default.
+  [ -z "$COUNTRY" ] && getCountry "https://api.ipapi.is" ".location.country_code"
+  [ -z "$COUNTRY" ] && getCountry "https://ifconfig.co/json" ".country_iso"
+  [ -z "$COUNTRY" ] && getCountry "https://api.ip2location.io" ".country_code"
+  [ -z "$COUNTRY" ] && getCountry "https://ipinfo.io/json" ".country"
+  [ -z "$COUNTRY" ] && getCountry "https://api.ipquery.io/?format=json" ".location.country_code"
+  [ -z "$COUNTRY" ] && getCountry "https://api.myip.com" ".cc"
+
+  return 0
+}
+
+finishDsmInstall() {
+
+  local pat="$1"
+  local tmp="$2"
+
+  echo "$BASE" > "$STORAGE/dsm.ver" || return 1
+  setOwner "$STORAGE/dsm.ver" || warn "failed to set the owner for \"$STORAGE/dsm.ver\" !"
+
+  # Do not keep a second copy when the source PAT already lives in storage;
+  # downloaded or externally mounted sources are cached for later reuse.
+  if [[ "$URL" == "file://$STORAGE/$BASE.pat" ]]; then
+    rm -f "$pat" || return $?
+  else
+    mv -f "$pat" "$STORAGE/$BASE.pat" || return $?
+  fi
+
+  if [ -f "$STORAGE/$BASE.pat" ]; then
+    setOwner "$STORAGE/$BASE.pat" || warn "failed to set the owner for \"$STORAGE/$BASE.pat\" !"
+  fi
+
+  mv -f "$DSM_BOOT" "$STORAGE/$BASE.boot.img" || return $?
+  setOwner "$STORAGE/$BASE.boot.img" || warn "failed to set the owner for \"$STORAGE/$BASE.boot.img\" !"
+
+  rm -rf "$tmp" || return $?
+  return 0
+}
+
+installDSM() {
+
+  rm -rf /tmp/dsm || return $?
+  rm -f "$QEMU_DIR/dsm.url" || return $?
+
+  checkSse42 || return $?
+  reservePorts || return $?
+  prepareMac || return $?
+
+  local patName="boot.pat"
+  local patDir patFile
+
+  # Persist the exact PAT base name so future starts reopen the matching boot,
+  # system, and cached installation files.
+  if [ -f "$STORAGE/dsm.ver" ]; then
+    BASE=$(<"$STORAGE/dsm.ver") || return $?
+    BASE="${BASE//[![:print:]]/}"
+    [ -z "$BASE" ] && BASE="DSM_VirtualDSM_69057"
+  else
+    # Fallback for old installs
+    BASE="DSM_VirtualDSM_42962"
+  fi
+
+  patDir=$(find / -maxdepth 1 -type d -iname "$patName" -print -quit) || return $?
+
+  if [ ! -d "$patDir" ]; then
+    patDir=$(find "$STORAGE" -maxdepth 1 -type d -iname "$patName" -print -quit) || return $?
+  fi
+
+  # A boot.pat directory bind represents already extracted boot and system
+  # images and therefore takes precedence over PAT file or URL discovery.
+  if [ -d "$patDir" ]; then
+    BASE="DSM_VirtualDSM"
+    URL="file://$patDir"
+
+    if [[ ! -s "$STORAGE/$BASE.boot.img" || ! -s "$STORAGE/$BASE.system.img" ]]; then
+      error "The bind $patDir maps to a file that does not exist!"
+      return 65
+    fi
+  fi
+
+  patFile=$(find / -maxdepth 1 -type f -iname "$patName" -print -quit) || return $?
+
+  if [ ! -s "$patFile" ]; then
+    patFile=$(find "$STORAGE" -maxdepth 1 -type f -iname "$patName" -print -quit) || return $?
+  fi
+
+  if [ -s "$patFile" ]; then
+    BASE="DSM_VirtualDSM"
+    URL="file://$patFile"
+  fi
+
+  URL=$(strip "$URL") || return $?
+
+  # Derive a filesystem-safe identity from the URL only when no local boot.pat
+  # source was supplied; preserve an existing system image identity if present.
+  if [ -n "$URL" ] && [ ! -s "$patFile" ] && [ ! -d "$patDir" ]; then
+    BASE=$(basename "$URL" .pat) || return $?
+
+    if [ ! -s "$STORAGE/$BASE.system.img" ]; then
+      BASE=$(sanitizePatBase "$URL") || return $?
+    fi
+
+    if [[ "${URL,,}" != "http"* && "${URL,,}" != "file:"* ]]; then
+      if [ ! -s "$STORAGE/$BASE.pat" ]; then
+        error "Invalid URL:  $URL"
+        return 65
+      fi
+
+      URL="file://$STORAGE/$BASE.pat"
+    fi
+  fi
+
+  # A complete matching image pair is the installation marker; the cached PAT
+  # itself is optional after installation.
+  if [[ -s "$STORAGE/$BASE.boot.img" && -s "$STORAGE/$BASE.system.img" ]]; then
+    return 0  # Previous installation found
+  fi
+
+  html "Please wait while Virtual DSM is being installed..." || return $?
+
+  local mirror=""
+  local chinaMirror="https://cndl.synology.cn/download/DSM"
+  local globalMirror="https://global.synologydownload.com/download/DSM"
+
+  [[ "${URL,,}" == *"cndl.synology"* ]] && mirror="$chinaMirror"
+  [[ "${URL,,}" == *"global.synology"* ]] && mirror="$globalMirror"
+
+  # Honor an explicitly selected Synology mirror first, otherwise choose the
+  # China or global endpoint from the detected country.
+  if [ -z "$mirror" ]; then
+    if [ -z "$COUNTRY" ]; then
+      setCountry || return $?
+    fi
+
+    [ -z "$COUNTRY" ] && info "Warning: could not detect country to select mirror!"
+    [[ "${COUNTRY^^}" == "CN" ]] && mirror="$chinaMirror" || mirror="$globalMirror"
+  fi
+
+  if [ -z "$URL" ]; then
+    URL="$mirror/release/7.2.2/72806/DSM_VirtualDSM_72806.pat"
+  fi
+
+  if [ ! -s "$patFile" ]; then
+    BASE=$(sanitizePatBase "$URL") || return $?
+  fi
+
+  if [[ "$URL" != "file://$STORAGE/$BASE.pat" ]]; then
+    rm -f "$STORAGE/$BASE.pat" || return $?
+  fi
+
+  rm -f "$STORAGE/$BASE.agent" || return $?
+  rm -f "$STORAGE/$BASE.boot.img" || return $?
+  rm -f "$STORAGE/$BASE.system.img" || return $?
+
+  # Check filesystem
+  local fs
+  fs=$(stat -f -c %T "$STORAGE") || return $?
+  checkDsmFilesystem "$fs" || return $?
+
+  local tmp
+
+  # Extract beside storage on Unix filesystems to avoid container-space limits;
+  # use /tmp for filesystems that cannot safely host the installer workspace.
+  if [[ "${fs,,}" != "exfat"* && "${fs,,}" != "ntfs"* && "${fs,,}" != "unknown"* ]]; then
+    tmp="$STORAGE/tmp"
+    rm -rf "$tmp" || return $?
+
+    if ! makeDir "$tmp"; then
+      error "Failed to create directory \"$tmp\" !"
+      return 93
+    fi
+  else
+    tmp="/tmp/dsm"
+    local tmpSpace=2147483648
+    local space available
+
+    space=$(df --output=avail -B 1 /tmp | tail -n 1) || return $?
+    available=$(formatBytes "$space") || return $?
+
+    if (( tmpSpace > space )); then
+      error "Not enough free space inside the container, have $available available but need at least 2 GB."
+      return 93
+    fi
+
+    rm -rf "$tmp" || return $?
+    mkdir -p "$tmp" || return $?
+  fi
+
+  # Check free diskspace
+  checkDsmSpace || return $?
+
+  local pat="/$BASE.pat"
+  downloadPat "$pat" || return $?
+
+  local size
+  size=$(stat -c%s "$pat") || return $?
+
+  # Full Virtual DSM PAT files are substantially larger than update packs;
+  # reject undersized inputs before attempting destructive image preparation.
+  if (( size < 250000000 )); then
+    error "The specified PAT file is probably an update pack as it's too small."
+    return 62
+  fi
+
+  extractPat "$pat" "$tmp" "$size" || return $?
+  createSystemImage "$tmp" "$fs" || return $?
+  installSystemPartition "$tmp" || return $?
+  finishDsmInstall "$pat" "$tmp" || return $?
+
+  return 0
+}
+
+installDSM || exit $?
 return 0

src/network.sh

@@ -1,555 +0,0 @@
-#!/usr/bin/env bash
-set -Eeuo pipefail
-
-# Docker environment variables
-
-: "${MAC:=""}"
-: "${MTU:=""}"
-: "${DHCP:="N"}"
-: "${NETWORK:="Y"}"
-: "${USER_PORTS:=""}"
-: "${HOST_PORTS:=""}"
-: "${ADAPTER:="virtio-net-pci"}"
-
-: "${VM_NET_DEV:=""}"
-: "${VM_NET_TAP:="dsm"}"
-: "${VM_NET_MAC:="$MAC"}"
-: "${VM_NET_IP:="20.20.20.21"}"
-: "${VM_NET_HOST:="VirtualDSM"}"
-
-: "${DNSMASQ_OPTS:=""}"
-: "${DNSMASQ:="/usr/sbin/dnsmasq"}"
-: "${DNSMASQ_CONF_DIR:="/etc/dnsmasq.d"}"
-
-ADD_ERR="Please add the following setting to your container:"
-
-# ######################################
-#  Functions
-# ######################################
-
-configureDHCP() {
-
-  # Create the necessary file structure for /dev/vhost-net
-  if [ ! -c /dev/vhost-net ]; then
-    if mknod /dev/vhost-net c 10 238; then
-      chmod 660 /dev/vhost-net
-    fi
-  fi
-
-  # Create a macvtap network for the VM guest
-  { msg=$(ip link add link "$VM_NET_DEV" name "$VM_NET_TAP" address "$VM_NET_MAC" type macvtap mode bridge 2>&1); rc=$?; } || :
-
-  case "$msg" in
-    "RTNETLINK answers: File exists"* )
-      while ! ip link add link "$VM_NET_DEV" name "$VM_NET_TAP" address "$VM_NET_MAC" type macvtap mode bridge; do
-        info "Waiting for macvtap interface to become available.."
-        sleep 5
-      done  ;;
-    "RTNETLINK answers: Invalid argument"* )
-      error "Cannot create macvtap interface. Please make sure that the network type of the container is 'macvlan' and not 'ipvlan'."
-      return 1 ;;
-    "RTNETLINK answers: Operation not permitted"* )
-      error "No permission to create macvtap interface. Please make sure that your host kernel supports it and that the NET_ADMIN capability is set."
-      return 1 ;;
-    *)
-      [ -n "$msg" ] && echo "$msg" >&2
-      if (( rc != 0 )); then
-        error "Cannot create macvtap interface."
-        return 1
-      fi ;;
-  esac
-
-  if [[ "$MTU" != "0" && "$MTU" != "1500" ]]; then
-    if ! ip link set dev "$VM_NET_TAP" mtu "$MTU"; then
-      warn "Failed to set MTU size.."
-    fi
-  fi
-
-  while ! ip link set "$VM_NET_TAP" up; do
-    info "Waiting for MAC address $VM_NET_MAC to become available..."
-    info "If you cloned this machine, please delete the 'dsm.mac' file to generate a different MAC address."
-    sleep 2
-  done
-
-  local TAP_NR TAP_PATH MAJOR MINOR
-  TAP_NR=$(</sys/class/net/"$VM_NET_TAP"/ifindex)
-  TAP_PATH="/dev/tap${TAP_NR}"
-
-  # Create dev file (there is no udev in container: need to be done manually)
-  IFS=: read -r MAJOR MINOR < <(cat /sys/devices/virtual/net/"$VM_NET_TAP"/tap*/dev)
-  (( MAJOR < 1)) && error "Cannot find: sys/devices/virtual/net/$VM_NET_TAP" && return 1
-
-  [[ ! -e "$TAP_PATH" && -e "/dev0/${TAP_PATH##*/}" ]] && ln -s "/dev0/${TAP_PATH##*/}" "$TAP_PATH"
-
-  if [[ ! -e "$TAP_PATH" ]]; then
-    { mknod "$TAP_PATH" c "$MAJOR" "$MINOR" ; rc=$?; } || :
-    (( rc != 0 )) && error "Cannot mknod: $TAP_PATH ($rc)" && return 1
-  fi
-
-  { exec 30>>"$TAP_PATH"; rc=$?; } 2>/dev/null || :
-
-  if (( rc != 0 )); then
-    error "Cannot create TAP interface ($rc). $ADD_ERR --device-cgroup-rule='c *:* rwm'" && return 1
-  fi
-
-  { exec 40>>/dev/vhost-net; rc=$?; } 2>/dev/null || :
-
-  if (( rc != 0 )); then
-    error "VHOST can not be found ($rc). $ADD_ERR --device=/dev/vhost-net" && return 1
-  fi
-
-  NET_OPTS="-netdev tap,id=hostnet0,vhost=on,vhostfd=40,fd=30"
-
-  return 0
-}
-
-configureDNS() {
-
-  # Create lease file for faster resolve
-  echo "0 $VM_NET_MAC $VM_NET_IP $VM_NET_HOST 01:$VM_NET_MAC" > /var/lib/misc/dnsmasq.leases
-  chmod 644 /var/lib/misc/dnsmasq.leases
-
-  # dnsmasq configuration:
-  DNSMASQ_OPTS+=" --dhcp-authoritative"
-
-  # Set DHCP range and host
-  DNSMASQ_OPTS+=" --dhcp-range=$VM_NET_IP,$VM_NET_IP"
-  DNSMASQ_OPTS+=" --dhcp-host=$VM_NET_MAC,,$VM_NET_IP,$VM_NET_HOST,infinite"
-
-  # Set DNS server and gateway
-  DNSMASQ_OPTS+=" --dhcp-option=option:netmask,255.255.255.0"
-  DNSMASQ_OPTS+=" --dhcp-option=option:router,${VM_NET_IP%.*}.1"
-  DNSMASQ_OPTS+=" --dhcp-option=option:dns-server,${VM_NET_IP%.*}.1"
-
-  # Add DNS entry for container
-  DNSMASQ_OPTS+=" --address=/host.lan/${VM_NET_IP%.*}.1"
-
-  DNSMASQ_OPTS=$(echo "$DNSMASQ_OPTS" | sed 's/\t/ /g' | tr -s ' ' | sed 's/^ *//')
-
-  if [[ "${DEBUG_DNS:-}" == [Yy1]* ]]; then
-   DNSMASQ_OPTS+=" -d"
-   $DNSMASQ ${DNSMASQ_OPTS:+ $DNSMASQ_OPTS} &
-   return 0
-  fi
-
-  if ! $DNSMASQ ${DNSMASQ_OPTS:+ $DNSMASQ_OPTS}; then
-    error "Failed to start dnsmasq, reason: $?" && return 1
-  fi
-
-  return 0
-}
-
-getUserPorts() {
-
-  local args=""
-  local list=$1
-  local ssh="22"
-  local dsm="5000"
-
-  [ -z "$list" ] && list="$ssh,$dsm" || list+=",$ssh,$dsm"
-
-  list="${list//,/ }"
-  list="${list## }"
-  list="${list%% }"
-
-  for port in $list; do
-    proto="tcp"
-    num="$port"
-
-    if [[ "$port" == */udp ]]; then
-      proto="udp"
-      num="${port%/udp}"
-    elif [[ "$port" == */tcp ]]; then
-      proto="tcp"
-      num="${port%/tcp}"
-    fi
-
-    args+="hostfwd=$proto::$num-$VM_NET_IP:$num,"
-  done
-
-  echo "${args%?}"
-  return 0
-}
-
-getHostPorts() {
-
-  local list="$1"
-
-  [ -z "$list" ] && echo "" && return 0
-
-  if [[ "$list" != *","* ]]; then
-    echo " ! --dport $list"
-  else
-    echo " -m multiport ! --dports $list"
-  fi
-
-  return 0
-}
-
-configureUser() {
-
-  if [ -z "$IP6" ]; then
-    NET_OPTS="-netdev user,id=hostnet0,host=${VM_NET_IP%.*}.1,net=${VM_NET_IP%.*}.0/24,dhcpstart=$VM_NET_IP,hostname=$VM_NET_HOST"
-  else
-    NET_OPTS="-netdev user,id=hostnet0,ipv4=on,host=${VM_NET_IP%.*}.1,net=${VM_NET_IP%.*}.0/24,dhcpstart=$VM_NET_IP,ipv6=on,hostname=$VM_NET_HOST"
-  fi
-
-  local forward
-  forward=$(getUserPorts "$USER_PORTS")
-  [ -n "$forward" ] && NET_OPTS+=",$forward"
-
-  return 0
-}
-
-configureNAT() {
-
-  local tuntap="TUN device is missing. $ADD_ERR --device /dev/net/tun"
-  local tables="The 'ip_tables' kernel module is not loaded. Try this command: sudo modprobe ip_tables iptable_nat"
-
-  # Create the necessary file structure for /dev/net/tun
-  if [ ! -c /dev/net/tun ]; then
-    [[ "$PODMAN" == [Yy1]* ]] && return 1
-    [ ! -d /dev/net ] && mkdir -m 755 /dev/net
-    if mknod /dev/net/tun c 10 200; then
-      chmod 666 /dev/net/tun
-    fi
-  fi
-
-  if [ ! -c /dev/net/tun ]; then
-    error "$tuntap" && return 1
-  fi
-
-  # Check port forwarding flag
-  if [[ $(< /proc/sys/net/ipv4/ip_forward) -eq 0 ]]; then
-    { sysctl -w net.ipv4.ip_forward=1 > /dev/null 2>&1; rc=$?; } || :
-    if (( rc != 0 )) || [[ $(< /proc/sys/net/ipv4/ip_forward) -eq 0 ]]; then
-      [[ "$PODMAN" == [Yy1]* ]] && return 1
-      error "IP forwarding is disabled. $ADD_ERR --sysctl net.ipv4.ip_forward=1"
-      return 1
-    fi
-  fi
-
-  # Create a bridge with a static IP for the VM guest
-  { ip link add dev dockerbridge type bridge ; rc=$?; } || :
-
-  if (( rc != 0 )); then
-    error "Failed to create bridge. $ADD_ERR --cap-add NET_ADMIN" && return 1
-  fi
-
-  if ! ip address add "${VM_NET_IP%.*}.1/24" broadcast "${VM_NET_IP%.*}.255" dev dockerbridge; then
-    error "Failed to add IP address pool!" && return 1
-  fi
-
-  while ! ip link set dockerbridge up; do
-    info "Waiting for IP address to become available..."
-    sleep 2
-  done
-
-  # QEMU Works with taps, set tap to the bridge created
-  if ! ip tuntap add dev "$VM_NET_TAP" mode tap; then
-    error "$tuntap" && return 1
-  fi
-
-  if [[ "$MTU" != "0" && "$MTU" != "1500" ]]; then
-    if ! ip link set dev "$VM_NET_TAP" mtu "$MTU"; then
-      warn "Failed to set MTU size.."
-    fi
-  fi
-
-  GATEWAY_MAC=$(echo "$VM_NET_MAC" | md5sum | sed 's/^\(..\)\(..\)\(..\)\(..\)\(..\).*$/02:\1:\2:\3:\4:\5/')
-
-  if ! ip link set dev "$VM_NET_TAP" address "$GATEWAY_MAC"; then
-    warn "Failed to set gateway MAC address.."
-  fi
-
-  while ! ip link set "$VM_NET_TAP" up promisc on; do
-    info "Waiting for TAP to become available..."
-    sleep 2
-  done
-
-  if ! ip link set dev "$VM_NET_TAP" master dockerbridge; then
-    error "Failed to set IP link!" && return 1
-  fi
-
-  # Add internet connection to the VM
-  update-alternatives --set iptables /usr/sbin/iptables-legacy > /dev/null
-  update-alternatives --set ip6tables /usr/sbin/ip6tables-legacy > /dev/null
-
-  exclude=$(getHostPorts "$HOST_PORTS")
-
-  if ! iptables -t nat -A POSTROUTING -o "$VM_NET_DEV" -j MASQUERADE; then
-    error "$tables" && return 1
-  fi
-
-  # shellcheck disable=SC2086
-  if ! iptables -t nat -A PREROUTING -i "$VM_NET_DEV" -d "$IP" -p tcp${exclude} -j DNAT --to "$VM_NET_IP"; then
-    error "Failed to configure IP tables!" && return 1
-  fi
-
-  if ! iptables -t nat -A PREROUTING -i "$VM_NET_DEV" -d "$IP" -p udp -j DNAT --to "$VM_NET_IP"; then
-    error "Failed to configure IP tables!" && return 1
-  fi
-
-  if (( KERNEL > 4 )); then
-    # Hack for guest VMs complaining about "bad udp checksums in 5 packets"
-    iptables -A POSTROUTING -t mangle -p udp --dport bootpc -j CHECKSUM --checksum-fill > /dev/null 2>&1 || true
-  fi
-
-  NET_OPTS="-netdev tap,id=hostnet0,ifname=$VM_NET_TAP"
-
-  if [ -c /dev/vhost-net ]; then
-    { exec 40>>/dev/vhost-net; rc=$?; } 2>/dev/null || :
-    (( rc == 0 )) && NET_OPTS+=",vhost=on,vhostfd=40"
-  fi
-
-  NET_OPTS+=",script=no,downscript=no"
-
-  configureDNS || return 1
-
-  return 0
-}
-
-closeBridge() {
-
-  local pid="/var/run/dnsmasq.pid"
-  [ -s "$pid" ] && pKill "$(<"$pid")"
-
-  [[ "${NETWORK,,}" == "user"* ]] && return 0
-
-  ip link set "$VM_NET_TAP" down promisc off &> null || true
-  ip link delete "$VM_NET_TAP" &> null || true
-
-  ip link set dockerbridge down &> null || true
-  ip link delete dockerbridge &> null || true
-
-  return 0
-}
-
-closeNetwork() {
-
-  if [[ "${WEB:-}" != [Nn]* && "$DHCP" == [Yy1]* ]]; then
-
-    # Shutdown nginx
-    nginx -s stop 2> /dev/null
-    fWait "nginx"
-
-  fi
-
-  [[ "$NETWORK" == [Nn]* ]] && return 0
-
-  exec 30<&- || true
-  exec 40<&- || true
-
-  if [[ "$DHCP" != [Yy1]* ]]; then
-
-    closeBridge
-    return 0
-
-  fi
-
-  ip link set "$VM_NET_TAP" down || true
-  ip link delete "$VM_NET_TAP" || true
-
-  return 0
-}
-
-checkOS() {
-
-  local kernel
-  local os=""
-  local if="macvlan"
-  kernel=$(uname -a)
-
-  [[ "${kernel,,}" == *"darwin"* ]] && os="Docker Desktop for macOS"
-  [[ "${kernel,,}" == *"microsoft"* ]] && os="Docker Desktop for Windows"
-
-  if [[ "$DHCP" == [Yy1]* ]]; then
-    if="macvtap"
-    [[ "${kernel,,}" == *"synology"* ]] && os="Synology Container Manager"
-  fi
-
-  if [ -n "$os" ]; then
-    warn "you are using $os which does not support $if, please revert to bridge networking!"
-  fi
-
-  return 0
-}
-
-getInfo() {
-
-  if [ -z "$VM_NET_DEV" ]; then
-    # Give Kubernetes priority over the default interface
-    [ -d "/sys/class/net/net0" ] && VM_NET_DEV="net0"
-    [ -d "/sys/class/net/net1" ] && VM_NET_DEV="net1"
-    [ -d "/sys/class/net/net2" ] && VM_NET_DEV="net2"
-    [ -d "/sys/class/net/net3" ] && VM_NET_DEV="net3"
-    # Automaticly detect the default network interface
-    [ -z "$VM_NET_DEV" ] && VM_NET_DEV=$(awk '$2 == 00000000 { print $1 }' /proc/net/route)
-    [ -z "$VM_NET_DEV" ] && VM_NET_DEV="eth0"
-  fi
-
-  if [ ! -d "/sys/class/net/$VM_NET_DEV" ]; then
-    error "Network interface '$VM_NET_DEV' does not exist inside the container!"
-    error "$ADD_ERR -e \"VM_NET_DEV=NAME\" to specify another interface name." && exit 26
-  fi
-
-  NIC=$(ethtool -i "$VM_NET_DEV" | grep -m 1 -i 'driver:' | awk '{print $(2)}')
-
-  if [[ "${NIC,,}" != "veth" && "${NIC,,}" != "macvlan" ]]; then
-    [[ "$DEBUG" == [Yy1]* ]] && info "Detected NIC: $NIC"
-    error "This container does not support host mode networking!" && exit 29
-  fi
-
-  BASE_IP="${VM_NET_IP%.*}."
-
-  if [ "${VM_NET_IP/$BASE_IP/}" -lt "3" ]; then
-    error "Invalid VM_NET_IP, must end in a higher number than .3" && exit 27
-  fi
-  
-  if [ -z "$MTU" ]; then
-    MTU=$(cat "/sys/class/net/$VM_NET_DEV/mtu")
-  fi
-
-  if [ "$MTU" -gt "1500" ]; then
-    info "MTU size is too large: $MTU, ignoring..." && MTU="0"
-  fi
-
-  if [[ "${ADAPTER,,}" != "virtio-net-pci" ]]; then
-    if [[ "$MTU" != "0" && "$MTU" != "1500" ]]; then
-      warn "MTU size is $MTU, but cannot be set for $ADAPTER adapters!" && MTU="0"
-    fi
-  fi
-
-  if [ -z "$VM_NET_MAC" ]; then
-    local file="$STORAGE/dsm.mac"
-    [ -s "$file" ] && VM_NET_MAC=$(<"$file")
-    VM_NET_MAC="${VM_NET_MAC//[![:print:]]/}"
-    if [ -z "$VM_NET_MAC" ]; then
-      # Generate MAC address based on Docker container ID in hostname
-      VM_NET_MAC=$(echo "$HOST" | md5sum | sed 's/^\(..\)\(..\)\(..\)\(..\)\(..\).*$/02:11:32:\3:\4:\5/')
-      echo "${VM_NET_MAC^^}" > "$file"
-    fi
-  fi
-
-  VM_NET_MAC="${VM_NET_MAC^^}"
-  VM_NET_MAC="${VM_NET_MAC//-/:}"
-
-  if [[ ${#VM_NET_MAC} == 12 ]]; then
-    m="$VM_NET_MAC"
-    VM_NET_MAC="${m:0:2}:${m:2:2}:${m:4:2}:${m:6:2}:${m:8:2}:${m:10:2}"
-  fi
-
-  if [[ ${#VM_NET_MAC} != 17 ]]; then
-    error "Invalid MAC address: '$VM_NET_MAC', should be 12 or 17 digits long!" && exit 28
-  fi
-
-  GATEWAY=$(ip route list dev "$VM_NET_DEV" | awk ' /^default/ {print $3}' | head -n 1)
-  IP=$(ip address show dev "$VM_NET_DEV" | grep inet | awk '/inet / { print $2 }' | cut -f1 -d/ | head -n 1)
-
-  IP6=""
-  # shellcheck disable=SC2143
-  if [ -f /proc/net/if_inet6 ] && [ -n "$(ifconfig -a | grep inet6)" ]; then
-    IP6=$(ip -6 addr show dev "$VM_NET_DEV" scope global up)
-    [ -n "$IP6" ] && IP6=$(echo "$IP6" | sed -e's/^.*inet6 \([^ ]*\)\/.*$/\1/;t;d' | head -n 1)
-  fi
-
-  [ -f "/run/.containerenv" ] && PODMAN="Y" || PODMAN="N"
-  echo "$IP" > /run/shm/qemu.ip
-
-  return 0
-}
-
-# ######################################
-#  Configure Network
-# ######################################
-
-if [[ "$NETWORK" == [Nn]* ]]; then
-  NET_OPTS=""
-  return 0
-fi
-
-getInfo
-html "Initializing network..."
-
-if [[ "$DEBUG" == [Yy1]* ]]; then
-  mtu=$(cat "/sys/class/net/$VM_NET_DEV/mtu")
-  line="Host: $HOST  IP: $IP  Gateway: $GATEWAY  Interface: $VM_NET_DEV  MAC: $VM_NET_MAC  MTU: $mtu"
-  [[ "$MTU" != "0" && "$MTU" != "$mtu" ]] && line+=" ($MTU)"
-  info "$line"
-  if [ -f /etc/resolv.conf ]; then
-    nameservers=$(grep '^nameserver*' /etc/resolv.conf | head -c -1 | sed 's/nameserver //g;' | sed -z 's/\n/, /g')
-    [ -n "$nameservers" ] && info "Nameservers: $nameservers"
-  fi
-  echo
-fi
-
-if [[ "$IP" == "172.17."* ]]; then
-  warn "your container IP starts with 172.17.* which will cause conflicts when you install the Container Manager package inside DSM!"
-fi
-
-if [[ -d "/sys/class/net/$VM_NET_TAP" ]]; then
-  info "Lingering interface will be removed..."
-  ip link delete "$VM_NET_TAP" || true
-fi
-
-if [[ "$DHCP" == [Yy1]* ]]; then
-
-  checkOS
-
-  if [[ "$IP" == "172."* ]]; then
-    warn "container IP starts with 172.* which is often a sign that you are not on a macvlan network (required for DHCP)!"
-  fi
-
-  # Configure for macvtap interface
-  configureDHCP || exit 20
-
-  MSG="Booting DSM instance..."
-  html "$MSG"
-
-else
-
-  if [[ "$IP" != "172."* && "$IP" != "10.8"* && "$IP" != "10.9"* ]]; then
-    checkOS
-  fi
-
-  if [[ "${WEB:-}" != [Nn]* ]]; then
-
-    # Shutdown nginx
-    nginx -s stop 2> /dev/null
-    fWait "nginx"
-
-  fi
-
-  if [[ "${NETWORK,,}" != "user"* ]]; then
-
-    # Configure for tap interface
-    if ! configureNAT; then
-
-      closeBridge
-      NETWORK="user"
-      msg="falling back to user-mode networking!"
-      if [[ "$PODMAN" != [Yy1]* ]]; then
-        msg="an error occured, $msg"
-      else
-        msg="podman detected, $msg"
-      fi
-      warn "$msg"
-      [ -z "$USER_PORTS" ] && info "Notice: when you want to expose ports in this mode, map them using this variable: \"USER_PORTS=5000,5001\"."
-
-    fi
-
-  fi
-
-  if [[ "${NETWORK,,}" == "user"* ]]; then
-
-    # Configure for user-mode networking (slirp)
-    configureUser || exit 24
-
-  fi
-
-fi
-
-NET_OPTS+=" -device $ADAPTER,id=net0,netdev=hostnet0,romfile=,mac=$VM_NET_MAC"
-[[ "$MTU" != "0" && "$MTU" != "1500" ]] && NET_OPTS+=",host_mtu=$MTU"
-
-return 0

src/power.sh

@@ -1,137 +1,69 @@
 #!/usr/bin/env bash
 set -Eeuo pipefail
 
+: "${SHUTDOWN:="Y"}"        # Graceful ACPI shutdown
+: "${TIMEOUT:="105"}"       # QEMU termination timeout
+: "${API_TIMEOUT:="90"}"    # External API call timeout
+
 # Configure QEMU for graceful shutdown
 
 API_CMD=6
-API_HOST="127.0.0.1:2210"
-: "${API_TIMEOUT:="50"}" # API Call timeout
 
-QEMU_TERM=""
-QEMU_PORT=7100
-: "${QEMU_TIMEOUT:="50"}" # QEMU Termination timeout
-QEMU_DIR="/run/shm"
-QEMU_PID="$QEMU_DIR/qemu.pid"
-QEMU_LOG="$QEMU_DIR/qemu.log"
-QEMU_OUT="$QEMU_DIR/qemu.out"
+SHUTDOWN_SKIP=0
+SHUTDOWN_SIGNAL=0
+
 QEMU_END="$QEMU_DIR/qemu.end"
-
-if [[ "$KVM" == [Nn]* ]]; then
-  API_TIMEOUT=$(( API_TIMEOUT*2 ))
-  QEMU_TIMEOUT=$(( QEMU_TIMEOUT*2 ))
-fi
-
-touch "$QEMU_LOG"
-
-_trap() {
-  func="$1" ; shift
-  for sig ; do
-    trap "$func $sig" "$sig"
-  done
-}
+CONSOLE_PID="$QEMU_DIR/console.pid"
+CONSOLE_SOCKET="$QEMU_DIR/console.sock"
+QEMU_START_PID="$QEMU_DIR/qemu.start.pid"
 
 finish() {
 
-  local pid
-  local reason=$1
+  local reason=$1 failed=0
 
-  touch "$QEMU_END"
-
-  if [ -s "$QEMU_PID" ]; then
-
-    pid=$(<"$QEMU_PID")
-    echo && error "Forcefully terminating QEMU process, reason: $reason..."
-    { kill -15 "$pid" || true; } 2>/dev/null
-
-    while isAlive "$pid"; do
-      sleep 1
-      # Workaround for zombie pid
-      [ ! -s "$QEMU_PID" ] && break
-    done
+  # A nonzero exit is unexpected only when QEMU_END is missing.
+  if [ ! -f "$QEMU_END" ] && (( reason != 0 )); then
+    failed=1
   fi
 
+  touch "$QEMU_END" || :
+
+  forceKillQemu "$reason"
+  cleanupHelpers "$HOST_PID"
+  
   fKill "print.sh"
-  fKill "host.bin"
+  rm -f -- "$HOST_API_SOCKET" "$HOST_AGENT_SOCKET"
 
-  closeNetwork
+  if ! waitQemuExit 10; then
+    warn "Timed out while waiting for $(app) to exit!"
+  fi
 
-  sleep 1
-  echo && echo "❯ Shutdown completed!"
+  stopConsole
+  echo
+
+  if (( failed == 0 )); then
+    echo "❯ Shutdown completed!"
+  else
+    error "QEMU exited unexpectedly!"
+  fi
 
   exit "$reason"
 }
 
-terminal() {
+sendGuestShutdown() {
 
-  local dev=""
-
-  if [ -s "$QEMU_OUT" ]; then
-
-    local msg
-    msg=$(<"$QEMU_OUT")
-
-    if [ -n "$msg" ]; then
-
-      if [[ "${msg,,}" != "char"* ||  "$msg" != *"serial0)" ]]; then
-        echo "$msg"
-      fi
-
-      dev="${msg#*/dev/p}"
-      dev="/dev/p${dev%% *}"
-
-    fi
-  fi
-
-  if [ ! -c "$dev" ]; then
-    dev=$(echo 'info chardev' | nc -q 1 -w 1 localhost "$QEMU_PORT" | tr -d '\000')
-    dev="${dev#*serial0}"
-    dev="${dev#*pty:}"
-    dev="${dev%%$'\n'*}"
-    dev="${dev%%$'\r'*}"
-  fi
-
-  if [ ! -c "$dev" ]; then
-    error "Device '$dev' not found!"
-    finish 34 && return 34
-  fi
-
-  QEMU_TERM="$dev"
-  return 0
-}
-
-_graceful_shutdown() {
-
-  local code=$?
-  local pid url response
-
-  set +e
-
-  if [ -f "$QEMU_END" ]; then
-    echo && info "Received $1 signal while already shutting down..."
-    return
-  fi
-
-  touch "$QEMU_END"
-  echo && info "Received $1 signal, sending shutdown command..."
-
-  if [ ! -s "$QEMU_PID" ]; then
-    echo && error "QEMU PID file does not exist?"
-    finish "$code" && return "$code"
-  fi
-
-  pid=$(<"$QEMU_PID")
-
-  if ! isAlive "$pid"; then
-    echo && error "QEMU process does not exist?"
-    finish "$code" && return "$code"
-  fi
+  local pid="$1"
+  local response
 
+  # Virtual DSM ignores ACPI powerdown, so graceful shutdown must go through
+  # the qemu-host guest API exposed on the Unix socket.
   # Don't send the powerdown signal because vDSM ignores ACPI signals
-  # echo 'system_powerdown' | nc -q 1 -w 1 localhost "${QEMU_PORT}" > /dev/null
+  # nc -q 1 -w 1 -U "$QEMU_DIR/monitor.sock" &> /dev/null <<<'system_powerdown' || :
 
   # Send shutdown command to guest agent via serial port
-  url="http://$API_HOST/read?command=$API_CMD&timeout=$API_TIMEOUT"
-  response=$(curl -sk -m "$(( API_TIMEOUT+2 ))" -S "$url" 2>&1)
+  API_TIMEOUT=$(strip "$API_TIMEOUT")
+  local url="http://localhost/read?command=$API_CMD&timeout=$API_TIMEOUT"
+  response=$(curl --unix-socket "$HOST_API_SOCKET" -sk -m "$(( API_TIMEOUT+2 ))" -S "$url" 2>&1)
 
   if [[ "$response" =~ "\"success\"" ]]; then
 
@@ -141,45 +73,148 @@ _graceful_shutdown() {
 
     response="${response#*message\"\: \"}"
     [ -z "$response" ] && response="second signal"
+
     echo && error "Forcefully terminating because of: ${response%%\"*}"
-    { kill -15 "$pid" || true; } 2>/dev/null
+    kill -15 -- "$pid" 2>/dev/null || :
 
   fi
 
+  return 0
+}
+
+normalizeTimeout() {
+
+  # Divide the remaining timeout into guest wait, SIGTERM grace, and final
+  # cleanup instead of allowing the API call to consume the entire budget.
+  local term_grace=3      # seconds before loop ends to send SIGTERM
+  local cleanup_grace=3   # seconds reserved after the loop for cleanup
+
+  TIMEOUT=$(strip "$TIMEOUT")
+  if [[ ! "$TIMEOUT" =~ ^[0-9]+$ ]]; then
+    TIMEOUT=105
+  fi
+
+  if (( TIMEOUT >= 30 )); then
+    term_grace=5
+    cleanup_grace=5
+  elif (( TIMEOUT >= 15 )); then
+    term_grace=4
+    cleanup_grace=4
+  fi
+
+  local elapsed=$((SECONDS - start))
+  local timeout_left=$((TIMEOUT - elapsed))
+
+  local min=$((term_grace + cleanup_grace + 1))
+  (( timeout_left < min )) && timeout_left=$min
+
+  wait_until=$((timeout_left - cleanup_grace))
+  sigterm_at=$((wait_until - term_grace))
+
+  return 0
+}
+
+waitForShutdown() {
+
   local cnt=0
+  local pid="$1"
+  local name="$APP"
 
-  while [ "$cnt" -lt "$QEMU_TIMEOUT" ]; do
+  while (( cnt <= wait_until && SHUTDOWN_SKIP == 0 )); do
 
-    ! isAlive "$pid" && break
+    sleep 1 &
+    local slp=$!
 
-    sleep 1
-    cnt=$((cnt+1))
+    # Stop waiting if the process has exited
+    isAlive "$pid" || break
 
-    [[ "$DEBUG" == [Yy1]* ]] && info "Shutting down, waiting... ($cnt/$QEMU_TIMEOUT)"
+    # The process state is authoritative, but disappearance of both pidfiles
+    # also ends the wait when a wrapper exits before process reaping completes.
+    # Workaround for stale/zombie QEMU pid file
+    [ ! -s "$QEMU_START_PID" ] && [ ! -s "$QEMU_PID" ] && break
 
-    # Workaround for zombie pid
-    [ ! -s "$QEMU_PID" ] && break
+    if (( cnt == sigterm_at )); then
+      info "${name^} is still running, sending SIGTERM... ($cnt/$wait_until)"
+      kill -15 -- "$pid" 2>/dev/null || :
+    elif (( cnt > 0 )) && enabled "${DEBUG:-}"; then
+      info "Waiting for $name to shut down... ($cnt/$wait_until)"
+    fi
+
+    wait "$slp" || :
+    (( cnt++ ))
 
   done
 
-  if [ "$cnt" -ge "$QEMU_TIMEOUT" ]; then
-    echo && error "Shutdown timeout reached, aborting..."
-  fi
-
-  finish "$code" && return "$code"
+  return 0
 }
 
-MON_OPTS="\
-        -pidfile $QEMU_PID \
-        -name $PROCESS,process=$PROCESS,debug-threads=on \
-        -monitor telnet:localhost:$QEMU_PORT,server,nowait,nodelay"
+gracefulShutdown() {
 
-if [[ "$CONSOLE" != [Yy]* ]]; then
+  local sig="$1"
+  local pid code
 
-  MON_OPTS+=" -daemonize -D $QEMU_LOG"
+  [[ $BASHPID != "$TRAP_PID" ]] && return
 
-  _trap _graceful_shutdown SIGTERM SIGHUP SIGINT SIGABRT SIGQUIT
+  code=$(signalCode "$sig")
 
-fi
+  if (( SHUTDOWN_SIGNAL != 0 )); then
+
+    # A second Ctrl-C is the explicit user request to skip the remaining
+    # graceful-shutdown wait and proceed to forced cleanup.
+    if (( code == 130 && SHUTDOWN_SIGNAL == code )); then
+      SHUTDOWN_SKIP=1
+      echo && info "Received SIGINT again, forcing shutdown..."
+      return
+    fi
+
+    echo && info "Received $sig signal while already shutting down..."
+    return
+  fi
+
+  start=$SECONDS
+  SHUTDOWN_SIGNAL=$code
+
+  # Shutdown handlers must continue through missing processes and failed cleanup
+  # commands instead of being aborted by errexit.
+  set +e
+  touch "$QEMU_END"
+
+  echo && info "Received $sig signal, sending shutdown command..."
+
+  if ! readQemuPid pid; then
+    if ! interactive || ! waitQemuPid pid; then
+      warn "QEMU PID file does not exist?"
+      finish "$code"
+    fi
+  fi
+
+  if [ -z "$pid" ] || ! isAlive "$pid"; then
+    warn "QEMU process with PID $pid does not exist?"
+    finish "$code"
+  fi
+
+  sendGuestShutdown "$pid"
+  normalizeTimeout
+  waitForShutdown "$pid"
+
+  finish "$code"
+}
+
+enableTrap() {
+
+  enabled "$SHUTDOWN" || return 0
+
+  # Keep Ctrl-C available to interactive users without installing an unnecessary
+  # SIGINT handler for background/container execution.
+  if interactive; then
+    _trap gracefulShutdown SIGINT
+  fi
+
+  _trap gracefulShutdown SIGTERM SIGHUP SIGABRT SIGQUIT
+
+  return 0
+}
+
+[ -n "${QEMU_TIMEOUT:-}" ] && TIMEOUT="$QEMU_TIMEOUT"
 
 return 0

src/prepare.sh

@@ -0,0 +1,45 @@
+#!/usr/bin/env bash
+set -Eeuo pipefail
+
+addSystemDisks() {
+
+  local boot="$STORAGE/$BASE.boot.img"
+  local system="$STORAGE/$BASE.system.img"
+
+  [ ! -s "$boot" ] && error "Virtual DSM boot-image does not exist ($boot)" && return 81
+  [ ! -s "$system" ] && error "Virtual DSM system-image does not exist ($system)" && return 82
+
+  setOwner "$boot" || warn "failed to set the owner for \"$boot\" !"
+  setOwner "$system" || warn "failed to set the owner for \"$system\" !"
+
+  DISK_OPTS+=$(createDevice "$boot" "$DISK_TYPE" "1" "0xa" "raw" "$DISK_IO" "$DISK_CACHE" "" "" "synoboot")
+  DISK_OPTS+=$(createDevice "$system" "$DISK_TYPE" "2" "0xb" "raw" "$DISK_IO" "$DISK_CACHE" "" "" "synosys")
+
+  return 0
+}
+
+closeWebserver() {
+
+  disabled "${NETWORK:-Y}" && return 0
+
+  MSG="Booting DSM instance..."
+  html "$MSG" || return $?
+
+  if enabled "${DHCP:-N}" || disabled "${WEB:-}"; then
+    return 0
+  fi
+
+  writeAtomic "$WSD_COMMAND" "portal" || return $?
+
+  sleep 1.2
+  stopAllServers
+
+  WEB="N"
+
+  return 0
+}
+
+addSystemDisks || return $?
+closeWebserver || return $?
+
+return 0

src/print.sh

@@ -1,108 +1,228 @@
 #!/usr/bin/env bash
+# shellcheck disable=SC2329
 set -Eeuo pipefail
 
 : "${DHCP:="N"}"
 : "${NETWORK:="Y"}"
 
-[[ "$NETWORK" == [Nn]* ]] && exit 0
+cd /run
+. utils.sh      # Load functions
 
 info () { printf "%b%s%b" "\E[1;34m❯ \E[1;36m" "$1" "\E[0m\n" >&2; }
+warn () { printf "%b%s%b" "\E[1;33m❯ " "WARNING: $1" "\E[0m\n" >&2; }
 error () { printf "%b%s%b" "\E[1;31m❯ " "ERROR: $1" "\E[0m\n" >&2; }
 
+disabled "$NETWORK" && exit 0
+
 file="/run/shm/dsm.url"
-info="/run/shm/msg.html"
+msgs="/run/shm/msg.html"
+driver="/run/shm/qemu.nic"
 page="/run/shm/index.html"
-address="/run/shm/qemu.ip"
+address="/run/shm/qemu.host"
 shutdown="/run/shm/qemu.end"
+command="/run/shm/status.cmd"
+socket="/run/shm/qemu-host-api.sock"
 template="/var/www/index.html"
-url="http://127.0.0.1:2210/read?command=10"
+url="http://localhost/read?command=10"
 
 resp_err="Guest returned an invalid response:"
 curl_err="Failed to connect to guest: curl error"
 jq_err="Failed to parse response from guest: jq error"
 
-while [ ! -s  "$file" ]
-do
-
-  # Check if not shutting down
-  [ -f "$shutdown" ] && exit 1
-
-  sleep 3
+exitIfShuttingDown() {
 
   [ -f "$shutdown" ] && exit 1
-  [ -s "$file" ] && break
 
-  # Retrieve network info from guest VM
-  { json=$(curl -m 20 -sk "$url"); rc=$?; } || :
+  return 0
+}
 
-  [ -f "$shutdown" ] && exit 1
-  (( rc != 0 )) && error "$curl_err $rc" && continue
+queryGuest() {
 
-  { result=$(echo "$json" | jq -r '.status'); rc=$?; } || :
-  (( rc != 0 )) && error "$jq_err $rc ( $json )" && continue
-  [[ "$result" == "null" ]] && error "$resp_err $json" && continue
+  # Query DSM through the qemu-host sidecar rather than the guest network,
+  # which may not be configured yet.
+  { json=$(curl --unix-socket "$socket" -m 20 -sk "$url"); local rc=$?; } || :
 
-  if [[ "$result" != "success" ]] ; then
-    { msg=$(echo "$json" | jq -r '.message'); rc=$?; } || :
-    error "Guest replied $result: $msg" && continue
+  exitIfShuttingDown
+
+  if (( rc != 0 )); then
+    error "$curl_err $rc"
+    return 1
   fi
 
-  { port=$(echo "$json" | jq -r '.data.data.dsm_setting.data.http_port'); rc=$?; } || :
-  (( rc != 0 )) && error "$jq_err $rc ( $json )" && continue
-  [[ "$port" == "null" ]] && error "$resp_err $json" && continue
-  [ -z "$port" ] && continue
+  return 0
+}
 
-  { ip=$(echo "$json" | jq -r '.data.data.ip.data[] | select((.name=="eth0") and has("ip")).ip'); rc=$?; } || :
-  (( rc != 0 )) && error "$jq_err $rc ( $json )" && continue
-  [[ "$ip" == "null" ]] && error "$resp_err $json" && continue
+readJsonField() {
 
-  if [ -z "$ip" ]; then
-    [[ "$DHCP" == [Yy1]* ]] && continue
-    ip="20.20.20.21"
+  local query="$1"
+  local result
+
+  { result=$(jq -r "$query" <<< "$json"); local rc=$?; } || :
+
+  if (( rc != 0 )); then
+    error "$jq_err $rc ( $json )"
+    return 1
   fi
 
-  echo "$ip:$port" > $file
+  if [[ "$result" == "null" ]]; then
+    error "$resp_err $json"
+    return 1
+  fi
 
-done
+  printf '%s\n' "$result"
+  return 0
+}
 
-[ -f "$shutdown" ] && exit 1
+readGuestStatus() {
 
-location=$(<"$file")
+  local result msg
 
-if [[ "$location" != "20.20"* ]]; then
+  result=$(readJsonField '.status') || return 1
+
+  if [[ "$result" != "success" ]]; then
+    { msg=$(jq -r '.message // empty' <<< "$json"); local rc=$?; } || :
+
+    if (( rc != 0 )); then
+      error "$jq_err $rc ( $json )"
+      return 1
+    fi
+
+    error "Guest replied $result: $msg"
+    return 1
+  fi
+
+  return 0
+}
+
+readGuestPort() {
+
+  port=$(readJsonField '.data.data.dsm_setting.data.http_port') || return 1
+  [ -z "$port" ] && return 1
+
+  return 0
+}
+
+readGuestIp() {
+
+  ip=$(readJsonField '.data.data.ip.data[] | select(.name=="eth0" and has("ip")) | .ip | select(test("^[0-9]+\\."))') || return 1
+  [ -z "$ip" ] && return 1
+
+  return 0
+}
+
+writeDsmLocation() {
+
+  echo "$ip:$port" > "$file"
+
+  return 0
+}
+
+pollGuestLocation() {
+
+  # Keep polling until the guest reports a usable address, but stop promptly
+  # when container shutdown begins.
+  while [ ! -s "$file" ]; do
+
+    # Check if not shutting down
+    exitIfShuttingDown
+
+    sleep 3
+
+    exitIfShuttingDown
+    [ -s "$file" ] && break
+
+    # Retrieve network info from guest VM
+    queryGuest || continue
+    readGuestStatus || continue
+    readGuestPort || continue
+    readGuestIp || continue
+    writeDsmLocation
+
+  done
+
+  return 0
+}
+
+checkAddressConflict() {
+
+  local guest_ip="${location%:*}"
+  local container_ip=""
+
+  [ -s "$address" ] && container_ip=$(<"$address")
+  [ -z "$container_ip" ] && return 0
+  [[ "$guest_ip" != "$container_ip" ]] && return 0
+
+  warn "DSM is using the same IP as the container, this will cause connectivity issues."
+  warn "change the container's macvlan IP or assign DSM a different address in your router."
+
+  return 0
+}
+
+writeDhcpPage() {
+
+  local html
 
   msg="http://$location"
-  title="<title>Virtual DSM</title>"
-  body="The location of DSM is <a href='http://$location'>http://$location</a>"
-  script="<script>setTimeout(function(){ window.location.assign('http://$location'); }, 3000);</script>"
+  local title="<title>Virtual DSM</title>"
+  local body="The location of DSM is <a href='http://$location'>http://$location</a>"
+  local script="<script>setTimeout(function(){ window.location.assign('http://$location'); }, 3000);</script>"
 
-  HTML=$(<"$template")
-  HTML="${HTML/\[1\]/$title}"
-  HTML="${HTML/\[2\]/$script}"
-  HTML="${HTML/\[3\]/$body}"
-  HTML="${HTML/\[4\]/}"
-  HTML="${HTML/\[5\]/}"
+  html=$(<"$template")
+  html="${html/\[1\]/$title}"
+  html="${html/\[2\]/$script}"
+  html="${html/\[3\]/$body}"
+  html="${html/\[4\]/}"
+  html="${html/\[5\]/}"
 
-  echo "$HTML" > "$page"
-  echo "$body" > "$info"
+  echo "$html" > "$page"
+  echo "$body" > "$msgs"
+  writeAtomic "$command" "portal http://$location"
 
-else
+  return 0
+}
 
+buildStaticMessage() {
+
+  local nic ip
+
+  nic=$(<"$driver")
   ip=$(<"$address")
-  port="${location##*:}"
+  local port="${location##*:}"
 
-  if [[ "$ip" == "172."* ]]; then
+  # NAT and user-mode networking are reached through a forwarded host port;
+  # macvlan exposes DSM directly on the container-facing LAN address.
+  if [[ "${nic,,}" != "macvlan" ]]; then
     msg="port $port"
   else
     msg="http://$ip:$port"
   fi
 
+  return 0
+}
+
+printLoginMessage() {
+
+  echo "" >&2
+  info "-----------------------------------------------------------"
+  info " You can now login to DSM at $msg"
+  info "-----------------------------------------------------------"
+  echo "" >&2
+
+  return 0
+}
+
+pollGuestLocation
+exitIfShuttingDown
+
+location=$(<"$file")
+
+if enabled "$DHCP"; then
+  checkAddressConflict
+  writeDhcpPage
+else
+  buildStaticMessage
 fi
 
-echo "" >&2
-info "-----------------------------------------------------------"
-info " You can now login to DSM at $msg"
-info "-----------------------------------------------------------"
-echo "" >&2
+printLoginMessage
 
 exit 0

src/proc.sh

@@ -1,187 +0,0 @@
-#!/usr/bin/env bash
-set -Eeuo pipefail
-
-# Docker environment variables
-
-: "${KVM:="Y"}"
-: "${HOST_CPU:=""}"
-: "${CPU_FLAGS:=""}"
-: "${CPU_MODEL:=""}"
-
-CLOCKSOURCE="tsc"
-[[ "${ARCH,,}" == "arm64" ]] && CLOCKSOURCE="arch_sys_counter"
-CLOCK="/sys/devices/system/clocksource/clocksource0/current_clocksource"
-
-if [ ! -f "$CLOCK" ]; then
-  warn "file \"$CLOCK\" cannot not found?"
-else
-  result=$(<"$CLOCK")
-  result="${result//[![:print:]]/}"
-  case "${result,,}" in
-    "${CLOCKSOURCE,,}" ) ;;
-    "kvm-clock" ) info "Nested KVM virtualization detected.." ;;
-    "hyperv_clocksource_tsc_page" ) info "Nested Hyper-V virtualization detected.." ;;
-    "hpet" ) warn "unsupported clock source detected: '$result'. Please set host clock source to '$CLOCKSOURCE'." ;;
-    *) warn "unexpected clock source detected: '$result'. Please set host clock source to '$CLOCKSOURCE'." ;;
-  esac
-fi
-
-if [[ "$KVM" == [Nn]* ]]; then
-  warn "KVM acceleration is disabled, this will cause the machine to run about 10 times slower!"
-else
-  if [[ "${ARCH,,}" != "amd64" ]]; then
-    KVM="N"
-    warn "your CPU architecture is ${ARCH^^} and cannot provide KVM acceleration for x64 instructions, so the machine will run about 10 times slower."
-  fi
-fi
-
-if [[ "$KVM" != [Nn]* ]]; then
-
-  KVM_ERR=""
-
-  if [ ! -e /dev/kvm ]; then
-    KVM_ERR="(/dev/kvm is missing)"
-  else
-    if ! sh -c 'echo -n > /dev/kvm' &> /dev/null; then
-      KVM_ERR="(/dev/kvm is unwriteable)"
-    else
-      flags=$(sed -ne '/^flags/s/^.*: //p' /proc/cpuinfo)
-      if ! grep -qw "vmx\|svm" <<< "$flags"; then
-        KVM_ERR="(not enabled in BIOS)"
-      fi
-    fi
-  fi
-
-  if [ -n "$KVM_ERR" ]; then
-    KVM="N"
-    if [[ "$OSTYPE" =~ ^darwin ]]; then
-      warn "you are using macOS which has no KVM support, so the machine will run about 10 times slower."
-    else
-      kernel=$(uname -a)
-      case "${kernel,,}" in
-        *"microsoft"* )
-          error "Please bind '/dev/kvm' as a volume in the optional container settings when using Docker Desktop." ;;
-        *"synology"* )
-          error "Please make sure that Synology VMM (Virtual Machine Manager) is installed and that '/dev/kvm' is binded to this container." ;;
-        *)
-          error "KVM acceleration is not available $KVM_ERR, this will cause the machine to run about 10 times slower."
-          error "See the FAQ for possible causes, or disable acceleration by adding the \"KVM=N\" variable (not recommended)." ;;
-      esac
-      [[ "$DEBUG" != [Yy1]* ]] && exit 88
-    fi
-  fi
-
-fi
-
-if [[ "$KVM" != [Nn]* ]]; then
-
-  CPU_FEATURES="kvm=on,l3-cache=on,+hypervisor"
-  KVM_OPTS=",accel=kvm -enable-kvm -global kvm-pit.lost_tick_policy=discard"
-
-  if ! grep -qw "sse4_2" <<< "$flags"; then
-    info "Your CPU does not have the SSE4 instruction set that Virtual DSM requires, it will be emulated..."
-    [ -z "$CPU_MODEL" ] && CPU_MODEL="qemu64"
-    CPU_FEATURES+=",+ssse3,+sse4.1,+sse4.2"
-  fi
-
-  if [ -z "$CPU_MODEL" ]; then
-    CPU_MODEL="host"
-    CPU_FEATURES+=",migratable=no"
-  fi
-
-  if grep -qw "svm" <<< "$flags"; then
-
-    # AMD processor
-
-    if grep -qw "tsc_scale" <<< "$flags"; then
-      CPU_FEATURES+=",+invtsc"
-    fi
-
-  else
-
-    # Intel processor
-
-    vmx=$(sed -ne '/^vmx flags/s/^.*: //p' /proc/cpuinfo)
-
-    if grep -qw "tsc_scaling" <<< "$vmx"; then
-      CPU_FEATURES+=",+invtsc"
-    fi
-
-  fi
-
-else
-
-  KVM_OPTS=""
-  CPU_FEATURES="l3-cache=on,+hypervisor"
-
-  if [[ "$ARCH" == "amd64" ]]; then
-    KVM_OPTS=" -accel tcg,thread=multi"
-  fi
-
-  if [ -z "$CPU_MODEL" ]; then
-    if [[ "$ARCH" == "amd64" ]]; then
-      CPU_MODEL="max"
-      CPU_FEATURES+=",migratable=no"
-    else
-      CPU_MODEL="qemu64"
-    fi
-  fi
-
-  CPU_FEATURES+=",+ssse3,+sse4.1,+sse4.2"
-
-fi
-
-if [[ "$ARGUMENTS" == *"-cpu host,"* ]]; then
-
-  args="${ARGUMENTS} "
-  prefix="${args/-cpu host,*/}"
-  suffix="${args/*-cpu host,/}"
-  param="${suffix%% *}"
-  suffix="${suffix#* }"
-  args="${prefix}${suffix}"
-  ARGUMENTS="${args::-1}"
-
-  if [ -z "$CPU_FLAGS" ]; then
-    CPU_FLAGS="$param"
-  else
-    CPU_FLAGS+=",$param"
-  fi
-
-else
-
-  if [[ "$ARGUMENTS" == *"-cpu host"* ]]; then
-    ARGUMENTS="${ARGUMENTS//-cpu host/}"
-  fi
-
-fi
-
-if [ -z "$CPU_FLAGS" ]; then
-  if [ -z "$CPU_FEATURES" ]; then
-    CPU_FLAGS="$CPU_MODEL"
-  else
-    CPU_FLAGS="$CPU_MODEL,$CPU_FEATURES"
-  fi
-else
-  if [ -z "$CPU_FEATURES" ]; then
-    CPU_FLAGS="$CPU_MODEL,$CPU_FLAGS"
-  else
-    CPU_FLAGS="$CPU_MODEL,$CPU_FEATURES,$CPU_FLAGS"
-  fi
-fi
-
-if [ -z "$HOST_CPU" ]; then
-  [[ "${CPU,,}" != "unknown" ]] && HOST_CPU="$CPU"
-fi
-
-if [ -n "$HOST_CPU" ]; then
-  HOST_CPU="${HOST_CPU%%,*},,"
-else
-  HOST_CPU="QEMU, Virtual CPU,"
-  if [ "$ARCH" == "amd64" ]; then
-    HOST_CPU+=" X86_64"
-  else
-    HOST_CPU+=" $ARCH"
-  fi
-fi
-
-return 0

src/progress.sh

@@ -1,38 +0,0 @@
-#!/usr/bin/env bash
-set -Eeuo pipefail
-
-escape () {
-    local s
-    s=${1//&/\&}
-    s=${s//</\&lt;}
-    s=${s//>/\&gt;}
-    s=${s//'"'/\&quot;}
-    printf -- %s "$s"
-    return 0
-}
-
-file="$1"
-total="$2"
-body=$(escape "$3")
-info="/run/shm/msg.html"
-
-if [[ "$body" == *"..." ]]; then
-  body="<p class=\"loading\">${body/.../}</p>"
-fi
-
-while true
-do
-  if [ -s "$file" ]; then
-    bytes=$(du -sb "$file" | cut -f1)
-    if (( bytes > 1000 )); then
-      if [ -z "$total" ] || [[ "$total" == "0" ]]; then
-        size=$(numfmt --to=iec --suffix=B "$bytes" | sed -r 's/([A-Z])/ \1/')
-      else
-        size="$(echo "$bytes" "$total" | awk '{printf "%.1f", $1 * 100 / $2}')"
-        size="$size%"
-      fi
-      echo "${body//(\[P\])/($size)}"> "$info"
-    fi
-  fi
-  sleep 1 & wait $!
-done

src/reset.sh

@@ -1,229 +0,0 @@
-#!/usr/bin/env bash
-set -Eeuo pipefail
-
-trap 'error "Status $? while: $BASH_COMMAND (line $LINENO/$BASH_LINENO)"' ERR
-
-[ ! -f "/run/entry.sh" ] && error "Script must run inside Docker container!" && exit 11
-[ "$(id -u)" -ne "0" ] && error "Script must be executed with root privileges." && exit 12
-
-echo "❯ Starting $APP for Docker v$(</run/version)..."
-echo "❯ For support visit $SUPPORT"
-
-# Docker environment variables
-
-: "${TZ:=""}"              # System local timezone
-: "${DEBUG:="N"}"          # Disable debugging mode
-: "${COUNTRY:=""}"         # Country code for mirror
-: "${CONSOLE:="N"}"        # Disable console mode
-: "${ALLOCATE:=""}"        # Preallocate diskspace
-: "${ARGUMENTS:=""}"       # Extra QEMU parameters
-: "${CPU_CORES:="2"}"      # Amount of CPU cores
-: "${RAM_SIZE:="2G"}"      # Maximum RAM amount
-: "${RAM_CHECK:="Y"}"      # Check available RAM
-: "${DISK_SIZE:="16G"}"    # Initial data disk size
-: "${STORAGE:="/storage"}" # Storage folder location
-
-# Helper variables
-
-PROCESS="${APP,,}"
-PROCESS="${PROCESS// /-}"
-
-INFO="/run/shm/msg.html"
-PAGE="/run/shm/index.html"
-TEMPLATE="/var/www/index.html"
-FOOTER1="$APP for Docker v$(</run/version)"
-FOOTER2="<a href='$SUPPORT'>$SUPPORT</a>"
-
-CPU=$(cpu)
-SYS=$(uname -r)
-HOST=$(hostname -s)
-KERNEL=$(echo "$SYS" | cut -b 1)
-MINOR=$(echo "$SYS" | cut -d '.' -f2)
-ARCH=$(dpkg --print-architecture)
-CORES=$(grep -c '^processor' /proc/cpuinfo)
-
-if ! grep -qi "socket(s)" <<< "$(lscpu)"; then
-  SOCKETS=1
-else
-  SOCKETS=$(lscpu | grep -m 1 -i 'socket(s)' | awk '{print $(2)}')
-fi
-
-CPU_CORES="${CPU_CORES// /}"
-[[ "${CPU_CORES,,}" == "max" ]] && CPU_CORES="$CORES"
-[ -n "${CPU_CORES//[0-9 ]}" ] && error "Invalid amount of CPU_CORES: $CPU_CORES" && exit 15
-
-if [ "$CPU_CORES" -gt "$CORES" ]; then
-  warn "The amount for CPU_CORES (${CPU_CORES}) exceeds the amount of physical cores, so will be limited to ${CORES}."
-  CPU_CORES="$CORES"
-fi
-
-# Check system
-
-if [ ! -d "/dev/shm" ]; then
-  error "Directory /dev/shm not found!" && exit 14
-else
-  [ ! -d "/run/shm" ] && ln -s /dev/shm /run/shm
-fi
-
-# Check folder
-
-if [[ "${COMMIT:-}" == [Yy1]* ]]; then
-  STORAGE="/local"
-  mkdir -p "$STORAGE"
-fi
-
-if [ ! -d "$STORAGE" ]; then
-  error "Storage folder ($STORAGE) not found!" && exit 13
-fi
-
-if [ ! -w "$STORAGE" ]; then
-  error "Storage folder ($STORAGE) is not writeable!" && exit 13
-fi
-
-# Check filesystem
-FS=$(stat -f -c %T "$STORAGE")
-
-if [[ "${FS,,}" == "ecryptfs" || "${FS,,}" == "tmpfs" ]]; then
-  DISK_IO="threads"
-  DISK_CACHE="writeback"
-fi
-
-# Read memory
-RAM_SPARE=500000000
-RAM_AVAIL=$(free -b | grep -m 1 Mem: | awk '{print $7}')
-RAM_TOTAL=$(free -b | grep -m 1 Mem: | awk '{print $2}')
-
-RAM_SIZE="${RAM_SIZE// /}"
-[ -z "$RAM_SIZE" ] && error "RAM_SIZE not specified!" && exit 16
-
-if [[ "${RAM_SIZE,,}" == "max" ]]; then
-  RAM_WANTED=$(( RAM_AVAIL - RAM_SPARE - RAM_SPARE ))
-  RAM_WANTED=$(( RAM_WANTED / 1073741825 ))
-  RAM_SIZE="${RAM_WANTED}G"
-fi
-
-if [ -z "${RAM_SIZE//[0-9. ]}" ]; then
-  [ "${RAM_SIZE%%.*}" -lt "130" ] && RAM_SIZE="${RAM_SIZE}G" || RAM_SIZE="${RAM_SIZE}M"
-fi
-
-RAM_SIZE=$(echo "${RAM_SIZE^^}" | sed 's/MB/M/g;s/GB/G/g;s/TB/T/g')
-! numfmt --from=iec "$RAM_SIZE" &>/dev/null && error "Invalid RAM_SIZE: $RAM_SIZE" && exit 16
-RAM_WANTED=$(numfmt --from=iec "$RAM_SIZE")
-[ "$RAM_WANTED" -lt "136314880 " ] && error "RAM_SIZE is too low: $RAM_SIZE" && exit 16
-
-# Print system info
-SYS="${SYS/-generic/}"
-FS="${FS/UNKNOWN //}"
-FS="${FS/ext2\/ext3/ext4}"
-FS=$(echo "$FS" | sed 's/[)(]//g')
-SPACE=$(df --output=avail -B 1 "$STORAGE" | tail -n 1)
-SPACE_GB=$(formatBytes "$SPACE" "down")
-AVAIL_MEM=$(formatBytes "$RAM_AVAIL" "down")
-TOTAL_MEM=$(formatBytes "$RAM_TOTAL" "up")
-
-echo "❯ CPU: ${CPU} | RAM: ${AVAIL_MEM/ GB/}/$TOTAL_MEM | DISK: $SPACE_GB (${FS}) | KERNEL: ${SYS}..."
-echo
-
-# Check available memory
-
-if [[ "$RAM_CHECK" != [Nn]* ]] && (( (RAM_WANTED + RAM_SPARE) > RAM_AVAIL )); then
-  AVAIL_MEM=$(formatBytes "$RAM_AVAIL")
-  msg="Your configured RAM_SIZE of ${RAM_SIZE/G/ GB} is too high for the $AVAIL_MEM of memory available, please set a lower value."
-  [[ "${FS,,}" != "zfs" ]] && error "$msg" && exit 17
-  info "$msg"
-fi
-
-# Cleanup files
-rm -f /run/shm/qemu.*
-rm -f /run/shm/dsm.url
-
-# Cleanup dirs
-rm -rf /tmp/dsm
-rm -rf "$STORAGE/tmp"
-
-getCountry() {
-  local url=$1
-  local query=$2
-  local rc json result
-
-  { json=$(curl -m 5 -H "Accept: application/json" -sfk "$url"); rc=$?; } || :
-  (( rc != 0 )) && return 0
-
-  { result=$(echo "$json" | jq -r "$query" 2> /dev/null); rc=$?; } || :
-  (( rc != 0 )) && return 0
-
-  [[ ${#result} -ne 2 ]] && return 0
-  [[ "${result^^}" == "XX" ]] && return 0
-
-  COUNTRY="${result^^}"
-
-  return 0
-}
-
-setCountry() {
-
-  [[ "${TZ,,}" == "asia/harbin" ]] && COUNTRY="CN"
-  [[ "${TZ,,}" == "asia/beijing" ]] && COUNTRY="CN"
-  [[ "${TZ,,}" == "asia/urumqi" ]] && COUNTRY="CN"
-  [[ "${TZ,,}" == "asia/kashgar" ]] && COUNTRY="CN"
-  [[ "${TZ,,}" == "asia/shanghai" ]] && COUNTRY="CN"
-  [[ "${TZ,,}" == "asia/chongqing" ]] && COUNTRY="CN"
-
-  [ -z "$COUNTRY" ] && getCountry "https://api.ipapi.is" ".location.country_code"
-  [ -z "$COUNTRY" ] && getCountry "https://ifconfig.co/json" ".country_iso"
-  [ -z "$COUNTRY" ] && getCountry "https://api.ip2location.io" ".country_code"
-  [ -z "$COUNTRY" ] && getCountry "https://ipinfo.io/json" ".country"
-  [ -z "$COUNTRY" ] && getCountry "https://api.ipquery.io/?format=json" ".location.country_code" 
-  [ -z "$COUNTRY" ] && getCountry "https://api.myip.com" ".cc"
-
-  return 0
-}
-
-addPackage() {
-  local pkg=$1
-  local desc=$2
-
-  if apt-mark showinstall | grep -qx "$pkg"; then
-    return 0
-  fi
-
-  MSG="Installing $desc..."
-  info "$MSG" && html "$MSG"
-
-  [ -z "$COUNTRY" ] && setCountry
-
-  if [[ "${COUNTRY^^}" == "CN" ]]; then
-    sed -i 's/deb.debian.org/mirrors.ustc.edu.cn/g' /etc/apt/sources.list.d/debian.sources
-  fi
-
-  DEBIAN_FRONTEND=noninteractive apt-get -qq update
-  DEBIAN_FRONTEND=noninteractive apt-get -qq --no-install-recommends -y install "$pkg" > /dev/null
-
-  return 0
-}
-
-: "${WEB_PORT:="5000"}"    # Webserver port
-
-cp -r /var/www/* /run/shm
-html "Starting $APP for Docker..."
-
-if [[ "${WEB:-}" != [Nn]* ]]; then
-
-  mkdir -p /etc/nginx/sites-enabled
-  cp /etc/nginx/default.conf /etc/nginx/sites-enabled/web.conf
-
-  sed -i "s/listen 5000 default_server;/listen $WEB_PORT default_server;/g" /etc/nginx/sites-enabled/web.conf
-  
-  # shellcheck disable=SC2143
-  if [ -f /proc/net/if_inet6 ] && [ -n "$(ifconfig -a | grep inet6)" ]; then
-
-    sed -i "s/listen $WEB_PORT default_server;/listen [::]:$WEB_PORT default_server ipv6only=off;/g" /etc/nginx/sites-enabled/web.conf
-
-  fi
-  
-  # Start webserver
-  nginx -e stderr
-
-fi
-
-return 0

src/serial.sh

@@ -4,72 +4,175 @@ set -Eeuo pipefail
 # Docker environment variables
 
 : "${HOST_MAC:=""}"
+: "${HOST_CPU:=""}"
 : "${HOST_DEBUG:=""}"
-: "${HOST_SERIAL:=""}"
 : "${HOST_MODEL:=""}"
+: "${HOST_SERIAL:=""}"
 : "${GUEST_SERIAL:=""}"
 
-if [ -n "$HOST_MAC" ]; then
+# Sanitize variables
+HOST_MAC=$(strip "$HOST_MAC")
+HOST_CPU=$(strip "$HOST_CPU")
+HOST_MODEL=$(strip "$HOST_MODEL")
+HOST_SERIAL=$(strip "$HOST_SERIAL")
+GUEST_SERIAL=$(strip "$GUEST_SERIAL")
+
+HOST_PID="$QEMU_DIR/host.pid"
+HOST_API_SOCKET="$QEMU_DIR/qemu-host-api.sock"
+HOST_AGENT_SOCKET="$QEMU_DIR/qemu-host-agent.sock"
+
+validateHostMac() {
+
+  if [ -z "$HOST_MAC" ]; then
+    return 0
+  fi
 
   HOST_MAC="${HOST_MAC//-/:}"
 
   if [[ ${#HOST_MAC} == 12 ]]; then
-    m="$HOST_MAC"
+    local m="$HOST_MAC"
     HOST_MAC="${m:0:2}:${m:2:2}:${m:4:2}:${m:6:2}:${m:8:2}:${m:10:2}"
   fi
 
   if [[ ${#HOST_MAC} != 17 ]]; then
-    error "Invalid HOST_MAC address: '$HOST_MAC', should be 12 or 17 digits long!" && exit 28
+    error "Invalid HOST_MAC address: '$HOST_MAC', should be 12 or 17 digits long!"
+    exit 28
   fi
 
-fi
+  return 0
+}
 
-HOST_ARGS=()
-HOST_ARGS+=("-cpu=$CPU_CORES")
-HOST_ARGS+=("-cpu_arch=$HOST_CPU")
+configureHostCpuName() {
 
-[ -n "$HOST_MAC" ] && HOST_ARGS+=("-mac=$HOST_MAC")
-[ -n "$HOST_MODEL" ] && HOST_ARGS+=("-model=$HOST_MODEL")
-[ -n "$HOST_SERIAL" ] && HOST_ARGS+=("-hostsn=$HOST_SERIAL")
-[ -n "$GUEST_SERIAL" ] && HOST_ARGS+=("-guestsn=$GUEST_SERIAL")
+  if [ -z "$HOST_CPU" ]; then
+    [[ "${CPU,,}" != "unknown" ]] && HOST_CPU="$CPU"
+  fi
 
-if [[ "$HOST_DEBUG" == [Yy1]* ]]; then
-  set -x
-  ./host.bin "${HOST_ARGS[@]}" &
-  { set +x; } 2>/dev/null
-  echo
-else
-  ./host.bin "${HOST_ARGS[@]}" >/dev/null &
-fi
+  if [ -n "$HOST_CPU" ]; then
+    # qemu-host expects a comma-separated CPU description with empty family
+    # and suffix fields, not QEMU's -cpu syntax.
+    HOST_CPU="${HOST_CPU%%,*},,"
+  else
+    HOST_CPU="QEMU, Virtual CPU,"
+    if [ "$ARCH" == "amd64" ]; then
+      HOST_CPU+=" X86_64"
+    else
+      HOST_CPU+=" $ARCH"
+    fi
+  fi
 
-cnt=0
-sleep 0.2
+  return 0
+}
 
-while ! nc -z -w2 127.0.0.1 2210 > /dev/null 2>&1; do
-  sleep 0.1
-  cnt=$((cnt + 1))
-  (( cnt > 50 )) && error "Failed to connect to qemu-host.." && exit 58
-done
+buildHostArguments() {
 
-cnt=0
+  # qemu-host is a sidecar that bridges DSM's proprietary serial agent to
+  # Unix sockets used by shutdown and post-boot discovery helpers.
+  HOST_ARGS=()
+  HOST_ARGS+=("-cpu=$CPU_CORES")
+  HOST_ARGS+=("-cpu_arch=$HOST_CPU")
+  HOST_ARGS+=("-api=$HOST_API_SOCKET")
+  HOST_ARGS+=("-addr=$HOST_AGENT_SOCKET")
 
-while ! nc -z -w2 127.0.0.1 12345 > /dev/null 2>&1; do
-  sleep 0.1
-  cnt=$((cnt + 1))
-  (( cnt > 50 )) && error "Failed to connect to qemu-host.." && exit 59
-done
+  [ -n "$HOST_MAC" ] && HOST_ARGS+=("-mac=$HOST_MAC")
+  [ -n "$HOST_MODEL" ] && HOST_ARGS+=("-model=$HOST_MODEL")
+  [ -n "$HOST_SERIAL" ] && HOST_ARGS+=("-hostsn=$HOST_SERIAL")
+  [ -n "$GUEST_SERIAL" ] && HOST_ARGS+=("-guestsn=$GUEST_SERIAL")
 
-# Configure serial ports
+  return 0
+}
 
-if [[ "$CONSOLE" != [Yy]* ]]; then
-  SERIAL_OPTS="-serial pty"
-else
-  SERIAL_OPTS="-serial mon:stdio"
-fi
+startHostBinary() {
 
-SERIAL_OPTS+=" \
-        -device virtio-serial-pci,id=virtio-serial0,bus=pcie.0,addr=0x3 \
-        -chardev socket,id=charchannel0,host=127.0.0.1,port=12345,reconnect=10 \
+  local pid
+
+  # Remove stale sockets and pid state before starting the sidecar; a Unix
+  # socket path cannot be rebound while an old filesystem entry remains.
+  rm -f -- "$HOST_PID" "$HOST_API_SOCKET" "$HOST_AGENT_SOCKET" || return 1
+
+  if enabled "$HOST_DEBUG"; then
+    set -x
+    ./host.bin "${HOST_ARGS[@]}" &
+    { set +x; } 2>/dev/null
+    pid=$!
+    echo
+  else
+    ./host.bin "${HOST_ARGS[@]}" >/dev/null &
+    pid=$!
+  fi
+
+  printf '%s\n' "$pid" > "$HOST_PID"
+
+  return 0
+}
+
+waitForSocket() {
+
+  local socket="$1"
+  local exit_code="$2"
+  local timeout=5 pid
+  local deadline=$((SECONDS + timeout))
+
+  # Do not start QEMU until both sidecar sockets are ready; otherwise the
+  # VirtIO serial channel or API client may race initial creation.
+  while [ ! -S "$socket" ]; do
+
+    if ! readPidFile pid "$HOST_PID" || ! isAlive "$pid"; then
+      error "qemu-host exited unexpectedly!"
+      exit "$exit_code"
+    fi
+
+    if (( SECONDS >= deadline )); then
+      error "Failed to create qemu-host socket: $socket"
+      exit "$exit_code"
+    fi
+
+    sleep 0.1
+  done
+
+  return 0
+}
+
+configureSerialPorts() {
+
+  local bus
+  bus=$(getPciBus)
+
+  # Managed interactive mode separates the console and QEMU monitor into
+  # reconnecting sockets; other runs keep the simple combined stdio monitor.
+  if enabled "${SHUTDOWN:-Y}" && interactive; then
+
+    CONSOLE_SOCKET="$QEMU_DIR/console.sock"
+    MONITOR_SOCKET="$QEMU_DIR/monitor.sock"
+
+    SERIAL_OPTS="-chardev socket,id=console0,path=$CONSOLE_SOCKET,reconnect-ms=1000 \
+          -serial chardev:console0 \
+          -chardev socket,id=monitor0,path=$MONITOR_SOCKET,server=on,wait=off \
+          -mon chardev=monitor0,mode=readline"
+
+  else
+
+    SERIAL_OPTS="-serial mon:stdio"
+
+  fi
+
+  SERIAL_OPTS+=" \
+        -device virtio-serial-pci,id=virtio-serial0,bus=$bus,addr=0x3 \
+        -chardev socket,id=charchannel0,path=$HOST_AGENT_SOCKET,reconnect-ms=1000 \
         -device virtserialport,bus=virtio-serial0.0,nr=1,chardev=charchannel0,id=channel0,name=vchannel"
 
+  return 0
+}
+
+validateHostMac
+configureHostCpuName
+
+buildHostArguments
+startHostBinary
+
+waitForSocket "$HOST_API_SOCKET" 58
+waitForSocket "$HOST_AGENT_SOCKET" 59
+
+configureSerialPorts
+
 return 0

src/socket.sh

@@ -0,0 +1,71 @@
+#!/usr/bin/env bash
+set -Eeuo pipefail
+
+lastmsg=""
+lastcmd=""
+status="/run/shm/msg.html"
+command="/run/shm/status.cmd"
+dir=$(dirname -- "$status")
+status_name=$(basename -- "$status")
+command_name=$(basename -- "$command")
+
+# websocketd clients use s: for status updates and c: for control commands.
+refreshStatus() {
+
+  [ ! -f "$status" ] && return 0
+  [ ! -s "$status" ] && return 0
+
+  msg=$(< "$status") || return 0
+  msg="${msg%$'\n'}"
+
+  [ -z "$msg" ] && return 0
+  [[ "$msg" == "$lastmsg" ]] && return 0
+
+  lastmsg="$msg"
+  echo "s: $msg"
+
+  return 0
+}
+
+refreshCommand() {
+
+  [ ! -f "$command" ] && return 0
+  [ ! -s "$command" ] && return 0
+
+  cmd=$(< "$command") || return 0
+  cmd="${cmd%$'\n'}"
+
+  [ -z "$cmd" ] && return 0
+  [[ "$cmd" == "$lastcmd" ]] && return 0
+
+  lastcmd="$cmd"
+  echo "c: $cmd"
+
+  return 0
+}
+
+refreshStatus
+refreshCommand
+
+# Watch the directory because status and command updates use atomic rename.
+inotifywait \
+  -m -q \
+  -e close_write,moved_to \
+  --format '%e %f' \
+  "$dir" |
+  while read -r event file; do
+
+    case "$file" in
+      "$status_name" )
+        case "${event,,}" in
+          "close_write"* | "moved_to"* )
+            refreshStatus ;;
+        esac ;;
+      "$command_name" )
+        case "${event,,}" in
+          "close_write"* | "moved_to"* )
+            refreshCommand ;;
+        esac ;;
+    esac
+
+  done

src/utils.sh

@@ -1,162 +0,0 @@
-#!/usr/bin/env bash
-set -Eeuo pipefail
-
-# Helper functions
-
-info () { printf "%b%s%b" "\E[1;34m❯ \E[1;36m" "${1:-}" "\E[0m\n"; }
-error () { printf "%b%s%b" "\E[1;31m❯ " "ERROR: ${1:-}" "\E[0m\n" >&2; }
-warn () { printf "%b%s%b" "\E[1;31m❯ " "Warning: ${1:-}" "\E[0m\n" >&2; }
-
-formatBytes() {
-  local result
-  result=$(numfmt --to=iec --suffix=B "$1" | sed -r 's/([A-Z])/ \1/' | sed 's/ B/ bytes/g;')
-  local unit="${result//[0-9. ]}"
-  result="${result//[a-zA-Z ]/}"
-  if [[ "${2:-}" == "up" ]]; then
-    if [[ "$result" == *"."* ]]; then
-      result="${result%%.*}"
-      result=$((result+1))
-    fi
-  else
-    if [[ "${2:-}" == "down" ]]; then
-      result="${result%%.*}"
-    fi
-  fi
-  echo "$result $unit"
-  return 0
-}
-
-isAlive() {
-  local pid="$1"
-
-  if kill -0 "$pid" 2>/dev/null; then
-    return 0
-  fi
-
-  return 1
-}
-
-pKill() {
-  local pid="$1"
-
-  { kill -15 "$pid" || true; } 2>/dev/null
-
-  while isAlive "$pid"; do
-    sleep 0.2
-  done
-
-  return 0
-}
-
-fWait() {
-  local name="$1"
-
-  while pgrep -f -l "$name" >/dev/null; do
-    sleep 0.2
-  done
-
-  return 0
-}
-
-fKill() {
-  local name="$1"
-
-  { pkill -f "$name" || true; } 2>/dev/null
-  fWait "$name"
-
-  return 0
-}
-
-escape () {
-  local s
-  s=${1//&/\&}
-  s=${s//</\&lt;}
-  s=${s//>/\&gt;}
-  s=${s//'"'/\&quot;}
-  printf -- %s "$s"
-  return 0
-}
-
-html() {
-  local title
-  local body
-  local script
-  local footer
-
-  title=$(escape "$APP")
-  title="<title>$title</title>"
-  footer=$(escape "$FOOTER1")
-
-  body=$(escape "$1")
-  if [[ "$body" == *"..." ]]; then
-    body="<p class=\"loading\">${body/.../}</p>"
-  fi
-
-  [ -n "${2:-}" ] && script="$2" || script=""
-
-  local HTML
-  HTML=$(<"$TEMPLATE")
-  HTML="${HTML/\[1\]/$title}"
-  HTML="${HTML/\[2\]/$script}"
-  HTML="${HTML/\[3\]/$body}"
-  HTML="${HTML/\[4\]/$footer}"
-  HTML="${HTML/\[5\]/$FOOTER2}"
-
-  echo "$HTML" > "$PAGE"
-  echo "$body" > "$INFO"
-
-  return 0
-}
-
-cpu() {
-  local ret
-  local cpu=""
-
-  ret=$(lscpu)
-
-  if grep -qi "model name" <<< "$ret"; then
-    cpu=$(echo "$ret" | grep -m 1 -i 'model name' | cut -f 2 -d ":" | awk '{$1=$1}1' | sed 's# @.*##g' | sed s/"(R)"//g | sed 's/[^[:alnum:] ]\+/ /g' | sed 's/  */ /g')
-  fi
-
-  if [ -z "${cpu// /}" ] && grep -qi "model:" <<< "$ret"; then
-    cpu=$(echo "$ret" | grep -m 1 -i 'model:' | cut -f 2 -d ":" | awk '{$1=$1}1' | sed 's# @.*##g' | sed s/"(R)"//g | sed 's/[^[:alnum:] ]\+/ /g' | sed 's/  */ /g')
-  fi
-
-  cpu="${cpu// CPU/}"
-  cpu="${cpu// [0-9] Core}"
-  cpu="${cpu// [0-9][0-9] Core}"
-  cpu="${cpu// [0-9][0-9][0-9] Core}"
-  cpu="${cpu// [0-9]th Gen}"
-  cpu="${cpu// [0-9][0-9]th Gen}"
-  cpu="${cpu// Processor/}"
-  cpu="${cpu// Quad core/}"
-  cpu="${cpu// Dual core/}"
-  cpu="${cpu// Octa core/}"
-  cpu="${cpu// Hexa core/}"
-  cpu="${cpu// Core TM/ Core}"
-  cpu="${cpu// with Radeon Graphics/}"
-  cpu="${cpu// with Radeon Vega Graphics/}"
-  cpu="${cpu// with Radeon Vega Mobile Gfx/}"
-  cpu="${cpu// w Radeon [0-9][0-9][0-9]M Graphics/}"
-
-  [ -z "${cpu// /}" ] && cpu="Unknown"
-
-  echo "$cpu"
-  return 0
-}
-
-hasDisk() {
-
-  [ -b "/disk" ] && return 0
-  [ -b "/disk1" ] && return 0
-  [ -b "/dev/disk1" ] && return 0
-  [ -b "${DEVICE:-}" ] && return 0
-
-  [ -z "${DISK_NAME:-}" ] && DISK_NAME="data"
-  [ -s "$STORAGE/$DISK_NAME.img" ]  && return 0
-  [ -s "$STORAGE/$DISK_NAME.qcow2" ] && return 0
-
-  return 1
-}
-
-return 0

web/conf/nginx.conf

@@ -1,4 +1,5 @@
 server {
+
     listen 5000 default_server;
 
     autoindex on;
@@ -9,6 +10,9 @@ server {
     error_log /dev/null;
     access_log /dev/null;
 
+    auth_basic off;
+    auth_basic_user_file /etc/nginx/.htpasswd;
+
     include /etc/nginx/mime.types;
 
     gzip on;
@@ -19,7 +23,13 @@ server {
     gzip_disable "msie6";
     gzip_types text/css text/javascript text/xml text/plain text/x-component application/javascript application/json application/xml application/rss+xml font/truetype font/opentype application/vnd.ms-fontobject image/svg+xml;
 
-    add_header Cache-Control "no-cache";
+    set $cache_control "no-cache";
+
+    if ($uri = /msg.html) {
+      set $cache_control "no-store";
+    }
+
+    add_header Cache-Control $cache_control always;
 
     location / {
 
@@ -27,4 +37,18 @@ server {
       index index.html;
 
     }
+
+    location /status {
+
+      proxy_http_version 1.1;
+
+      proxy_set_header Connection 'upgrade';
+      proxy_set_header Upgrade $http_upgrade;
+
+      proxy_buffering off;
+      proxy_read_timeout 3600s;
+      proxy_send_timeout 3600s;
+
+      proxy_pass http://unix:/run/shm/status-ws.sock:/;
+    }
 }

web/css/style.css

@@ -1,167 +0,0 @@
-body {
-	color: white;
-	background-color: #125bdb;
-	font-smoothing: antialiased;
-	-webkit-font-smoothing: antialiased;
-	-moz-osx-font-smoothing: grayscale;
-	font-family: Verdana, Geneva, sans-serif;
-}
-
-#info {
-	text-shadow: 1px 1px 1px rgba(0, 0, 0, 0.25);
-}
-
-#content {
-	text-align: center;
-	padding: 20px;
-	margin-top: 50px;
-}
-
-footer {
-	width: 98%;
-	position: fixed;
-	bottom: 0px;
-	height: 40px;
-	text-align: center;
-	color: #0c8aeb;
-	text-shadow: 0 0 1px #0c8aeb;
-}
-
-#empty {
-	height: 40px;
-	/* Same height as footer */
-}
-
-a,
-a:hover,
-a:active,
-a:visited {
-	color: white;
-}
-
-footer a:link,
-footer a:visited,
-footer a:active {
-	color: #0c8aeb;
-}
-
-footer a:hover {
-	color: #73e6ff;
-}
-
-.loading:after {
-	content: " .";
-	animation: dots 1s steps(5, end) infinite;
-}
-
-@keyframes dots {
-
-	0%,
-	20% {
-		color: rgba(0, 0, 0, 0);
-		text-shadow: 0.25em 0 0 rgba(0, 0, 0, 0), 0.5em 0 0 rgba(0, 0, 0, 0);
-	}
-
-	40% {
-		color: white;
-		text-shadow: 0.25em 0 0 rgba(0, 0, 0, 0), 0.5em 0 0 rgba(0, 0, 0, 0);
-	}
-
-	60% {
-		text-shadow: 0.25em 0 0 white, 0.5em 0 0 rgba(0, 0, 0, 0);
-	}
-
-	80%,
-	100% {
-		text-shadow: 0.25em 0 0 white, 0.5em 0 0 white;
-	}
-}
-
-.spinner_LWk7 {
-	animation: spinner_GWy6 1.2s linear infinite, spinner_BNNO 1.2s linear infinite
-}
-
-.spinner_yOMU {
-	animation: spinner_GWy6 1.2s linear infinite, spinner_pVqn 1.2s linear infinite;
-	animation-delay: .15s
-}
-
-.spinner_KS4S {
-	animation: spinner_GWy6 1.2s linear infinite, spinner_6uKB 1.2s linear infinite;
-	animation-delay: .3s
-}
-
-.spinner_zVee {
-	animation: spinner_GWy6 1.2s linear infinite, spinner_Qw4x 1.2s linear infinite;
-	animation-delay: .45s
-}
-
-@keyframes spinner_GWy6 {
-
-	0%,
-	50% {
-		width: 9px;
-		height: 9px
-	}
-
-	10% {
-		width: 11px;
-		height: 11px
-	}
-}
-
-@keyframes spinner_BNNO {
-
-	0%,
-	50% {
-		x: 1.5px;
-		y: 1.5px
-	}
-
-	10% {
-		x: .5px;
-		y: .5px
-	}
-}
-
-@keyframes spinner_pVqn {
-
-	0%,
-	50% {
-		x: 13.5px;
-		y: 1.5px
-	}
-
-	10% {
-		x: 12.5px;
-		y: .5px
-	}
-}
-
-@keyframes spinner_6uKB {
-
-	0%,
-	50% {
-		x: 13.5px;
-		y: 13.5px
-	}
-
-	10% {
-		x: 12.5px;
-		y: 12.5px
-	}
-}
-
-@keyframes spinner_Qw4x {
-
-	0%,
-	50% {
-		x: 1.5px;
-		y: 13.5px
-	}
-
-	10% {
-		x: .5px;
-		y: 12.5px
-	}
-}

web/img/favicon.svg

@@ -1 +0,0 @@
-<svg id="Capa_1" enable-background="new 0 0 511.962 511.962" height="512" viewBox="0 0 511.962 511.962" width="512" xmlns="http://www.w3.org/2000/svg"><g><path d="m489.965 120.063c0-5.77-3.31-11.028-8.512-13.524l-218.984-105.063c-4.102-1.967-8.875-1.967-12.977 0l-218.985 105.063c-5.202 2.496-8.511 7.755-8.511 13.524l-.003 271.834c0 5.77 3.31 11.028 8.512 13.524l218.989 105.064c2.051.983 4.27 1.476 6.488 1.476 2.219 0 4.438-.492 6.488-1.476l218.989-105.064c5.202-2.496 8.512-7.755 8.512-13.524z" fill="#4e6ba6"/><path d="m489.965 120.063c0-5.77-3.31-11.028-8.512-13.524l-218.984-105.063c-2.051-.984-4.269-1.476-6.488-1.476v511.962c2.219 0 4.438-.492 6.488-1.476l218.989-105.064c5.202-2.496 8.512-7.755 8.512-13.524z" fill="#28487a"/><path d="m425.812 160.441c0-2.27-.519-4.457-1.457-6.432l-336.701-.095c-.967 1.999-1.504 4.22-1.504 6.526l-.002 191.081c0 5.769 3.31 11.028 8.512 13.524l154.833 74.285c2.051.983 4.27 1.476 6.488 1.476 2.219 0 4.438-.492 6.488-1.476l154.834-74.285c5.202-2.496 8.512-7.755 8.512-13.524z" fill="#8dc2eb"/><path d="m424.354 154.009h-168.373v286.798c2.219 0 4.438-.492 6.488-1.476l154.834-74.285c5.202-2.496 8.512-7.755 8.512-13.524l-.003-191.081c0-2.27-.52-4.458-1.458-6.432z" fill="#5e9ff6"/><path d="m417.3 146.916-154.831-74.284c-4.102-1.967-8.875-1.967-12.977 0l-154.831 74.284c-3.122 1.498-5.555 3.996-7.007 6.998l168.328 80.812 168.374-80.717c-1.448-3.044-3.9-5.579-7.056-7.093z" fill="#ecf9fd"/><path d="m417.3 146.916-154.831-74.284c-2.051-.983-4.27-1.476-6.488-1.476v163.569l168.374-80.717c-1.447-3.043-3.899-5.578-7.055-7.092z" fill="#d9f3fc"/></g></svg>

web/index.html

@@ -1,34 +0,0 @@
-<!DOCTYPE html>
-<html>
-
-    <head>
-        [1]
-        <meta http-equiv="Cache-Control" content="no-cache" />
-        <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-        <link rel="stylesheet" type="text/css" href="css/style.css" />
-        <link rel="icon" href="img/favicon.svg" type="image/x-icon">
-        [2]
-    </head>
-
-    <body>
-        <div id="page">
-            <div id="content">
-                <svg id="spinner" width="64" height="64" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg">
-                    <rect class="spinner_LWk7" fill="#0c8aeb" x="1.5" y="1.5" rx="1" width="9" height="9"/>
-                    <rect class="spinner_yOMU" fill="#0c8aeb" x="13.5" y="1.5" rx="1" width="9" height="9"/>
-                    <rect class="spinner_KS4S" fill="#0c8aeb" x="13.5" y="13.5" rx="1" width="9" height="9"/>
-                    <rect class="spinner_zVee" fill="#0c8aeb" x="1.5" y="13.5" rx="1" width="9" height="9"/>
-                </svg>
-                <h1 id="info">[3]</h1>
-            </div>
-            <div id="empty">
-            </div>
-            <footer id="footer">
-                [4]<br />
-                [5]
-            </footer>
-        </div>
-        <script type="text/javascript" src="js/script.js"></script>
-    </body>
-
-</html>

web/js/script.js

@@ -1,16 +1,95 @@
+var timer;
 var request;
+var failureTimer;
+var navigationTimer;
+var booting = false;
+var portal = false;
+var portalUrl = "";
 var interval = 1000;
+var lastStatus = "";
+
+function abortRequest() {
+
+    if (!request) {
+        return false;
+    }
+
+    request.onreadystatechange = null;
+    request.abort();
+    request = null;
+
+    return true;
+}
+
+function clearFailure() {
+
+    if (!failureTimer) {
+        return false;
+    }
+
+    clearTimeout(failureTimer);
+    failureTimer = null;
+
+    return true;
+}
+
+function connectionLost() {
+
+    if (booting || (portal && portalUrl.length == 0) ||
+        document.hidden || failureTimer) {
+        return false;
+    }
+
+    failureTimer = setTimeout(function() {
+
+        if (booting || (portal && portalUrl.length == 0) ||
+            document.hidden) {
+            failureTimer = null;
+            return;
+        }
+
+        setStopped();
+    }, interval * 3);
+
+    return true;
+}
+
+function clearNavigation() {
+
+    if (!navigationTimer) {
+        return false;
+    }
+
+    clearTimeout(navigationTimer);
+    navigationTimer = null;
+
+    return true;
+}
+
+function visibilityChanged() {
+
+    clearFailure();
+    clearNavigation();
+
+    if (document.hidden) {
+        return false;
+    }
+
+    getInfo();
+    return true;
+}
 
 function getInfo() {
 
     var url = "msg.html";
 
     try {
+        abortRequest();
 
         if (window.XMLHttpRequest) {
             request = new XMLHttpRequest();
         } else {
-            throw "XMLHttpRequest not available!";
+            throw new Error("XMLHttpRequest not available!");
         }
 
         request.onreadystatechange = processInfo;
@@ -18,113 +97,534 @@ function getInfo() {
         request.send();
 
     } catch (e) {
-        var err = "Error: " + e.message;
-        console.log(err);
-        setError(err);
+        setError("Error: " + e.message);
     }
 }
 
-function processInfo() {
-    try {
-        if (request.readyState != 4) {
-            return true;
-        }
+function getURL() {
 
-        var msg = request.responseText;
-        if (msg == null || msg.length == 0) {
-            setInfo("Booting DSM instance", true);
-            schedule();
-            return false;
-        }
+    var protocol = window.location.protocol === "https:" ? "wss:" : "ws:";
+    var path = window.location.pathname.replace(/[^/]*$/, '').replace(/\/$/, '');
 
-        var notFound = (request.status == 404);
+    return protocol + "//" + window.location.host + path;
+}
 
-        if (request.status == 200) {
-            if (msg.toLowerCase().indexOf("<html>") !== -1) {
-                notFound = true;
-            } else {
-                if (msg.toLowerCase().indexOf("href=") !== -1) {
-                    var div = document.createElement("div");
-                    div.innerHTML = msg;
-                    var url = div.querySelector("a").href;
-                    setTimeout(() => {
-                        window.location.assign(url);
-                    }, 3000);
-                    setInfo(msg);
-                    return true;
-                } else {
-                    setInfo(msg);
-                    schedule();
-                    return true;
-                }
-            }
-        }
+function redirect(url) {
 
-        if (notFound) {
-            setInfo("Connecting to web portal", true);
-            reload();
-            return true;
-        }
-
-        setError("Error: Received statuscode " + request.status);
-        schedule();
-        return false;
-
-    } catch (e) {
-        var err = "Error: " + e.message;
-        console.log(err);
-        setError(err);
+    if (document.hidden || navigationTimer) {
         return false;
     }
+
+    navigationTimer = setTimeout(function() {
+        navigationTimer = null;
+        window.location.assign(url);
+    }, 3000);
+
+    return true;
+}
+
+function beginPortal(url) {
+
+    portal = true;
+    portalUrl = url || "";
+    booting = false;
+
+    clearFailure();
+    setInfo("Connecting to web portal", true);
+    schedule();
+
+    if (portalUrl.length > 0) {
+        redirect(portalUrl);
+    }
+
+    return true;
+}
+
+function processCommand(msg) {
+
+    if (msg == "portal") {
+        return beginPortal("");
+    }
+
+    if (msg.indexOf("portal ") == 0) {
+        return beginPortal(msg.substring(7));
+    }
+
+    console.warn("Unknown command: " + msg);
+    return false;
+}
+
+function processMsg(msg) {
+
+    rememberStatus(msg);
+    setInfo(msg);
+
+    if (msg.toLowerCase().indexOf("href=") !== -1) {
+        var div = document.createElement("div");
+        div.innerHTML = msg;
+        return beginPortal(div.querySelector("a").href);
+    }
+
+    return true;
+}
+
+function processInfo() {
+
+    if (request.readyState != 4) {
+        return true;
+    }
+
+    var response = request;
+    request = null;
+
+    var status = response.status;
+
+    if (status == 502 || status == 503 || status == 504) {
+        connectionLost();
+        schedule();
+        return true;
+    }
+
+    var msg = response.responseText;
+    if (msg == null || msg.length == 0) {
+        connectionLost();
+        schedule();
+        return false;
+    }
+
+    var notFound = (status == 404);
+
+    if (status == 200) {
+        if (msg.toLowerCase().indexOf("<html>") !== -1) {
+            notFound = true;
+        } else {
+            clearFailure();
+            processMsg(msg);
+
+            if (portalUrl.length > 0) {
+                setInfo("Connecting to web portal", true);
+                redirect(portalUrl);
+            } else {
+                schedule();
+            }
+
+            return true;
+        }
+    }
+
+    if (notFound) {
+        clearFailure();
+        booting = false;
+        setInfo("Connecting to web portal", true);
+
+        if (portalUrl.length > 0) {
+            redirect(portalUrl);
+        } else {
+            portal = true;
+            reload();
+        }
+
+        return true;
+    }
+
+    setError("Error: Received statuscode " + status);
+    return false;
+}
+
+function extractContent(s) {
+    var span = document.createElement('span');
+    span.innerHTML = s;
+    return span.textContent || span.innerText;
+};
+
+function escapeContent(s) {
+    var span = document.createElement('span');
+    span.textContent = s;
+    return span.innerHTML;
+}
+
+function rememberStatus(msg) {
+
+    var text = extractContent(msg).trim();
+    if (text.length == 0) {
+        return false;
+    }
+
+    if (text.includes("Booting ")) {
+        booting = true;
+    }
+
+    lastStatus = text;
+    return true;
+}
+
+function parseSize(value, unit) {
+
+    var powers = {
+        "B": 0,
+        "KB": 1,
+        "KIB": 1,
+        "MB": 2,
+        "MIB": 2,
+        "GB": 3,
+        "GIB": 3,
+        "TB": 4,
+        "TIB": 4,
+        "PB": 5,
+        "PIB": 5,
+        "EB": 6,
+        "EIB": 6
+    };
+
+    unit = unit.toUpperCase();
+
+    if (!Object.prototype.hasOwnProperty.call(powers, unit)) {
+        return null;
+    }
+
+    var bytes = Number(value) * Math.pow(1024, powers[unit]);
+
+    if (!Number.isFinite(bytes) || bytes < 0) {
+        return null;
+    }
+
+    return bytes;
+}
+
+function estimateProgress(bytes) {
+
+    var boundary = 512 * 1024 * 1024;
+    var previousBoundary = 0;
+
+    while (bytes > boundary) {
+        previousBoundary = boundary;
+        boundary *= 2;
+    }
+
+    if (previousBoundary === 0) {
+        return Math.min(bytes / boundary * 100, 99.9);
+    }
+
+    var rangeProgress =
+        (bytes - previousBoundary) /
+        (boundary - previousBoundary);
+
+    return Math.min(30 + Math.pow(rangeProgress, 2) * 70, 99.9);
+}
+
+function parseProgress(msg) {
+
+    var container = document.createElement("div");
+    container.innerHTML = msg;
+
+    var walker = document.createTreeWalker(
+        container,
+        NodeFilter.SHOW_TEXT
+    );
+
+    var node;
+    var lastNode = null;
+
+    while ((node = walker.nextNode())) {
+        if (node.nodeValue.trim() !== "") {
+            lastNode = node;
+        }
+    }
+
+    if (!lastNode) {
+        return {
+            message: msg,
+            progress: null,
+            size: null
+        };
+    }
+
+    var percentMatch = lastNode.nodeValue.match(
+        /\s+\((\d+(?:\.\d+)?)%\)\s*$/
+    );
+
+    if (percentMatch) {
+        var progress = Number(percentMatch[1]);
+
+        if (Number.isFinite(progress) && progress >= 0 && progress <= 100) {
+            lastNode.nodeValue = lastNode.nodeValue.slice(
+                0,
+                percentMatch.index
+            );
+
+            return {
+                message: container.innerHTML,
+                progress: progress,
+                size: null
+            };
+        }
+    }
+
+    var sizeMatch = lastNode.nodeValue.match(
+        /\s+\((\d+(?:\.\d+)?)\s+([KMGTPE]?i?B)\)\s*$/i
+    );
+
+    if (sizeMatch) {
+        var bytes = parseSize(sizeMatch[1], sizeMatch[2]);
+
+        if (bytes != null) {
+            var size = sizeMatch[1] + " " + sizeMatch[2];
+
+            return {
+                message: msg,
+                progress: estimateProgress(bytes),
+                size: size
+            };
+        }
+    }
+
+    return {
+        message: msg,
+        progress: null,
+        size: null
+    };
+}
+
+function resizeProgress() {
+
+    var info = document.getElementById("info");
+    var progress = document.getElementById("progress");
+
+    if (!info || !progress || progress.hidden) {
+        return false;
+    }
+
+    var style = window.getComputedStyle(info);
+    var measurement = document.createElement("span");
+
+    measurement.textContent = info.innerText;
+    measurement.style.position = "fixed";
+    measurement.style.left = "-9999px";
+    measurement.style.top = "-9999px";
+    measurement.style.visibility = "hidden";
+    measurement.style.whiteSpace = "nowrap";
+    measurement.style.fontFamily = style.fontFamily;
+    measurement.style.fontSize = style.fontSize;
+    measurement.style.fontWeight = style.fontWeight;
+    measurement.style.fontStyle = style.fontStyle;
+    measurement.style.letterSpacing = style.letterSpacing;
+    measurement.style.textTransform = style.textTransform;
+
+    document.body.appendChild(measurement);
+
+    var textWidth = measurement.getBoundingClientRect().width;
+    var loading = info.getElementsByClassName("loading").length > 0;
+    var dotsWidth = 0;
+
+    if (loading) {
+        dotsWidth = parseFloat(style.fontSize) * 0.75;
+    }
+
+    measurement.remove();
+
+    var maximumWidth = window.innerWidth * 0.8;
+    var width = Math.min(textWidth + dotsWidth + 100, maximumWidth);
+
+    progress.style.width = width + "px";
+    progress.style.transform = loading
+        ? "translateX(" + (dotsWidth / 2) + "px)"
+        : "";
+
+    return true;
+}
+
+function setProgress(value, size) {
+
+    var progress = document.getElementById("progress");
+    var fill = document.getElementById("progress-fill");
+
+    if (value == null) {
+        progress.hidden = true;
+        progress.removeAttribute("title");
+        progress.removeAttribute("aria-valuenow");
+        progress.removeAttribute("aria-valuetext");
+        fill.style.width = "0%";
+        return true;
+    }
+
+    progress.hidden = false;
+    progress.title = size != null ? size : value + "%";
+    progress.setAttribute("aria-valuenow", value);
+
+    if (size != null) {
+        progress.setAttribute("aria-valuetext", size);
+    } else {
+        progress.removeAttribute("aria-valuetext");
+    }
+
+    fill.style.width = value + "%";
+
+    return true;
 }
 
 function setInfo(msg, loading, error) {
 
-    try {
-        if (msg == null || msg.length == 0) {
-            return false;
-        }
-
-        var el = document.getElementById("spinner");
-
-        error = !!error;
-        if (!error) {
-            el.style.visibility = 'visible';
-        } else {
-            el.style.visibility = 'hidden';
-        }
-
-        loading = !!loading;
-        if (loading) {
-            msg = "<p class=\"loading\">" + msg + "</p>";
-        }
-
-        el = document.getElementById("info");
-
-        if (el.innerHTML != msg) {
-            el.innerHTML = msg;
-        }
-
-        return true;
-
-    } catch (e) {
-        console.log("Error: " + e.message);
+    if (msg == null || msg.length == 0) {
         return false;
     }
+
+    var parsed = parseProgress(msg);
+    msg = parsed.message;
+    setProgress(parsed.progress, parsed.size);
+
+    var el = document.getElementById("info");
+
+    if (el.innerText == msg || el.innerHTML == msg) {
+        var progressEl = document.getElementById("progress");
+        if (progressEl && !progressEl.hidden && !progressEl.style.width) {
+            resizeProgress();
+        }
+        return true;
+    }
+
+    var spin = document.getElementById("spinner");
+
+    error = !!error;
+    if (!error) {
+        spin.style.visibility = 'visible';
+    } else {
+        spin.style.visibility = 'hidden';
+    }
+
+    var p = "<p class=\"loading\">";
+    loading = !!loading;
+    if (loading) {
+        msg = p + msg + "</p>";
+    }
+
+    if (msg.includes(p)) {
+        if (el.innerHTML.includes(p)) {
+            el.getElementsByClassName('loading')[0].textContent = extractContent(msg);
+            resizeProgress();
+            return true;
+        }
+    }
+
+    el.innerHTML = msg;
+    resizeProgress();
+    return true;
 }
 
 function setError(text) {
+    console.warn(text);
     return setInfo(text, false, true);
 }
 
+function setStopped() {
+
+    var msg = "<span style=\"display:block\">The container has stopped.</span>";
+    msg += "<span style=\"display:block; margin-top:1em; font-size:0.85em; font-weight:normal\">Check the container log for more details.</span>";
+
+    if (lastStatus.length > 0) {
+        msg += "<span style=\"display:block; margin-top:1em; font-size:0.75em; font-weight:normal; color:rgba(255,255,255,0.65)\">[ Last status: " + escapeContent(lastStatus) + " ]</span>";
+    }
+
+    return setError(msg);
+}
+
 function schedule() {
-    setTimeout(getInfo, interval);
+
+    clearTimeout(timer);
+    timer = setTimeout(getInfo, interval);
 }
 
 function reload() {
-    setTimeout(() => {
-        document.location.reload();
+
+    if (document.hidden) {
+        return false;
+    }
+
+    clearNavigation();
+
+    navigationTimer = setTimeout(function() {
+        navigationTimer = null;
+        window.location.replace(window.location.href);
     }, 3000);
+
+    return true;
 }
 
+function connect() {
+
+    var wsUrl = getURL() + "/status";
+    var ws = new WebSocket(wsUrl);
+
+    ws.onopen = function(e) {
+
+        clearFailure();
+
+        if (portalUrl.length > 0) {
+            redirect(portalUrl);
+        }
+    };
+
+    ws.onmessage = function(e) {
+
+        clearFailure();
+
+        var pos = e.data.indexOf(":");
+        var cmd = e.data.substring(0, pos);
+        var msg = e.data.substring(pos + 2);
+
+        switch (cmd) {
+            case "s":
+
+                if (abortRequest()) {
+                    schedule();
+                }
+
+                processMsg(msg);
+                break;
+
+            case "c":
+
+                abortRequest();
+                processCommand(msg);
+                break;
+
+            case "e":
+
+                if (abortRequest()) {
+                    schedule();
+                }
+
+                rememberStatus(msg);
+                setError(msg);
+                break;
+
+            default:
+                console.warn("Unknown event: " + cmd);
+                break;
+        }
+    };
+
+    ws.onclose = function(e) {
+
+        connectionLost();
+
+        if (portal && portalUrl.length == 0) {
+            return;
+        }
+
+        setTimeout(function() {
+            connect();
+        }, interval);
+    };
+
+    ws.onerror = function(e) {
+        connectionLost();
+        ws.close();
+    };
+}
+
+window.addEventListener("resize", resizeProgress);
+document.addEventListener("visibilitychange", visibilityChanged);
+rememberStatus(document.getElementById("info").innerHTML);
+
 schedule();
+connect();