fix: Restore HTTP portal redirect fallback (#1379)

.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/check.yml

@@ -1,5 +1,7 @@
 on: [workflow_call]
+
 name: "Check"
+
 permissions: {}
 
 jobs:
@@ -7,24 +9,29 @@ jobs:
     name: shellcheck
     runs-on: ubuntu-latest
     steps:
-    - 
-      name: Checkout
-      uses: actions/checkout@v7
-    - parallel:
       -
-        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: Validate JSON and YML files
-        uses: GrantBirki/json-yaml-validate@v5.0.0
-        with:
-          yaml_exclude_regex: ".*\\kubernetes\\.yml$"
+        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/review.yml

@@ -11,61 +11,4 @@ permissions:
 jobs:
   review:
     name: review
-    runs-on: ubuntu-latest
-    steps:
-    -
-      name: Checkout
-      uses: actions/checkout@v7
-    - parallel:
-      -
-        name: Spelling
-        uses: reviewdog/action-misspell@v1
-        with:
-          locale: "US"
-          level: warning
-          pattern: |
-            *.md
-            *.sh
-          reporter: github-pr-review
-          github_token: ${{ secrets.GITHUB_TOKEN }}
-      -
-        name: Hadolint
-        uses: reviewdog/action-hadolint@v1
-        with:
-          level: warning
-          fail_level: error
-          reporter: github-pr-review
-          hadolint_ignore: DL3008 DL3003 DL3006 DL3013
-          github_token: ${{ secrets.GITHUB_TOKEN }}
-      -
-        name: YamlLint
-        uses: reviewdog/action-yamllint@v1
-        with:
-          level: warning
-          reporter: github-pr-review
-          github_token: ${{ secrets.GITHUB_TOKEN }}
-      -
-        name: ActionLint
-        uses: reviewdog/action-actionlint@v1
-        with:
-          level: warning
-          reporter: github-pr-review
-          github_token: ${{ secrets.GITHUB_TOKEN }}
-      -
-        name: Shellformat
-        uses: reviewdog/action-shfmt@v1
-        if: false
-        with:
-          level: warning
-          fail_on_error: "true"
-          shfmt_flags: "-i 2 -ci -bn"
-          github_token: ${{ secrets.GITHUB_TOKEN }}
-      -
-        name: Shellcheck
-        uses: reviewdog/action-shellcheck@v1
-        with:
-          level: warning
-          fail_level: error
-          reporter: github-pr-review
-          shellcheck_flags: -x -e SC1091 -e SC2001 -e SC2034 -e SC2064 -e SC2317 -e SC2153 -e SC2028
-          github_token: ${{ secrets.GITHUB_TOKEN }}
+    uses: action-pack/.github/.github/workflows/review.yml@master

.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

@@ -1,12 +1,12 @@
 # syntax=docker/dockerfile:1
 
-FROM qemux/qemu-host:2.05 AS builder
-FROM debian:trixie-slim
+FROM qemux/qemu-host:2.06 AS host
+FROM scratch
+
+COPY --from=qemux/qemu:7.45 / /
 
-ARG TARGETARCH
-ARG TARGETPLATFORM
 ARG VERSION_ARG="0.0"
-ARG VERSION_PASST="2026_06_11"
+ARG VERSION_CSTRUCT="4.7"
 
 ARG DEBCONF_NOWARNINGS="yes"
 ARG DEBIAN_FRONTEND="noninteractive"
@@ -17,52 +17,14 @@ RUN <<EOF
 
   apt-get update
   apt-get --no-install-recommends -y install \
-    jq \
-    tini \
-    curl \
-    wget \
-    fdisk \
-    unzip \
-    nginx \
-    procps \
-    ipcalc \
-    ethtool \
-    python3 \
-    python3-pip \
-    python3-msgpack \
-    python3-pysodium \
-    xz-utils \
-    iptables \
-    iproute2 \
-    dnsmasq \
     fakeroot \
-    apt-utils \
-    net-tools \
-    e2fsprogs \
-    qemu-utils \
-    websocketd \
-    iputils-ping \
-    inotify-tools \
-    ca-certificates \
-    netcat-openbsd \
-    qemu-system-x86
-
-  # Install Passt package
-  wget "https://github.com/qemus/passt/releases/download/v${VERSION_PASST}/passt_${VERSION_PASST}_${TARGETARCH}.deb" -O /tmp/passt.deb -q --timeout=10
-  dpkg -i /tmp/passt.deb
+    python3-msgpack \
+    python3-pysodium
 
   apt-get clean
 
   # Install Python dependencies
-  pip3 install --no-cache-dir --break-system-packages --root-user-action=ignore dissect.cstruct
-
-  # Configure QEMU
-  mkdir -p /etc/qemu
-  echo "allow br0" > /etc/qemu/bridge.conf
-
-  # Configure nginx
-  unlink /etc/nginx/sites-enabled/default
-  sed -i 's/^worker_processes.*/worker_processes 1;/' /etc/nginx/nginx.conf
+  pip3 install --no-cache-dir --break-system-packages --root-user-action=ignore "dissect.cstruct==$VERSION_CSTRUCT"
 
   # Set version file
   echo "$VERSION_ARG" > /etc/version
@@ -72,17 +34,17 @@ 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

@@ -2,13 +2,16 @@
 
 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 of the DSM `.pat` installation file. When unset, the default Virtual DSM image is downloaded automatically. |
+| `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 device model 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. |
 
@@ -16,68 +19,88 @@ This page lists all the environment variables that can be used to configure the
 
 | Variable | Default | Description |
 |---|---|---|
-| `CPU_CORES` | `2` | Number of CPU cores assigned to the VM. Can also be set to `max` or `half`. |
-| `CPU_MODEL` | `host` | QEMU CPU model to use. |
+| `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. Automatically selected when unset. |
-| `KVM` | `Y` | Enables KVM hardware acceleration. Set to `N` to disable. |
-| `RAM_SIZE` | `2G` | Amount of RAM assigned to the VM, for example `2G`, `4G`, `max`, or `half`. |
-| `RAM_CHECK` | `Y` | Checks whether enough host memory is available before starting the VM. |
+| `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, usually `raw` or `qcow2`. |
-| `DISK_TYPE` | `scsi` | Disk controller/device type, such as `sata`, `scsi`, `nvme`, or `blk`. |
-| `DISK_CACHE` | `none` | QEMU disk cache mode, for example `none` or `writeback`. |
-| `DISK_IO` | `native` | QEMU disk I/O mode, for example `native`, `threads`, or `io_uring`. |
-| `DISK_DISCARD` | `unmap` | Enables TRIM/unmap support for the data disk. |
-| `DISK_ROTATION` | `1` | Rotation rate reported to the guest. Use `1` for SSD-like storage. |
-| `DISK_FLAGS` |  | Additional options used when creating qcow2 disks. |
-| `ALLOCATE` | `N` | Preallocates disk space when creating the data disk. |
-| `STORAGE` | `/storage` | Storage directory used for disks, firmware variables, and generated files. |
+| `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` | `Y` | Network mode. Common values are `Y` for NAT, `passt`, `slirp`, or `N` to disable networking. |
-| `DHCP` | `N` | Enables DHCP/macvtap mode so the VM receives an address from the external LAN. |
-| `IP` |  | Guest IP address override. |
+| `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. |
-| `HOST` | `VirtualDSM` | Hostname assigned to the VM. |
-| `DEV` | `eth0` | Host/container network interface to use. |
-| `MTU` |  | Network MTU to use for the guest interface. |
-| `MASK` | `255.255.255.0` | IPv4 netmask. |
-| `TAP` | `dsm` | TAP/macvtap interface name. |
-| `BRIDGE` | `docker` | Bridge name used for NAT networking. |
 | `ADAPTER` | `virtio-net-pci` | QEMU network adapter model. |
-| `HOST_PORTS` |  | Ports reserved for services running on the host/container side. |
-| `USER_PORTS` |  | Additional ports to forward to the VM when using user-mode networking. |
-| `DNSMASQ_OPTS` |  | Additional dnsmasq options. |
-| `DNSMASQ_DEBUG` | `N` | Enables dnsmasq log tailing. |
+| `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 passt options. |
+| `PASST_OPTS` |  | Additional options passed to passt. |
 | `PASST_DEBUG` | `N` | Enables passt debug output. |
 
 ## 🖥️ Display
 
 | Variable | Default | Description |
 |---|---|---|
-| `DISPLAY` | `none` | QEMU display backend. Common values are `vnc`, `disabled`, or `none`. |
+| `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` | `115` | Timeout used while waiting for DSM to shut down. |
-| `API_TIMEOUT` | `90` | Timeout used for the shutdown API call. |
+| `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
 
@@ -85,7 +108,7 @@ This page lists all the environment variables that can be used to configure the
 |---|---|---|
 | `DEBUG` | `N` | Enables verbose debug output. |
 | `TRACE` | `N` | Enables shell command tracing. |
-| `COM_PORT` | `2210` | Internal communication port used by the DSM host helper. |
-| `CHR_PORT` | `12345` | Internal character device port used by the DSM host helper. |
-| `HOST_DEBUG` | `N` | Enables debug output for the host helper. |
-| `ARGUMENTS` |  | Additional raw QEMU arguments appended to the generated command line. |
+| `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

@@ -22,6 +22,7 @@ Virtual DSM in a Docker container.
 - 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  🐳
@@ -66,12 +67,13 @@ kubectl apply -f https://raw.githubusercontent.com/vdsm/virtual-dsm/refs/heads/m
 
 ## Requirements ⚙️
 
- - A Linux host with KVM support, or Docker Desktop / Podman on Windows 11 with nested virtualization enabled.
- - At least 2 GB of RAM available.
- - At least 32 GB of free disk space.
+- 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 macOS and Windows 10 do not currently provide the required KVM support for this image.
+> Docker Desktop on Linux, macOS, and Windows 10 does not currently provide KVM access to containers and is therefore not supported.
 
 ## FAQ 💬
 
@@ -147,34 +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 VPSs.
-
-  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. 
@@ -241,6 +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:
@@ -263,7 +243,38 @@ kubectl apply -f https://raw.githubusercontent.com/vdsm/virtual-dsm/refs/heads/m
 
 ### Are these all available options?
 
-No. For a complete overview of all supported settings, see the [environment variables](docs/environment.md) page.
+  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?
 

src/check.sh

@@ -8,19 +8,27 @@ cd /run
 : "${NETWORK:="Y"}"
 
 [ -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
 
+  # 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"

src/config.sh

@@ -1,16 +1,99 @@
 #!/usr/bin/env bash
 set -Eeuo pipefail
 
-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')
-MON_OPTS="-name $PROCESS,process=$PROCESS,debug-threads=on -pidfile $QEMU_PID"
-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${KVM_OPTS}"
-DEV_OPTS="-device virtio-balloon-pci,id=balloon0,bus=pcie.0,addr=0x4"
-DEV_OPTS+=" -object rng-random,id=objrng0,filename=/dev/urandom"
-DEV_OPTS+=" -device virtio-rng-pci,rng=objrng0,id=rng0,bus=pcie.0,addr=0x1c"
+: "${QMP:=""}"
+: "${UUID:=""}"
+: "${MONITOR:=""}"
 
-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 ' ')
+DEF_OPTS="-nodefaults -boot strict=on"
+DEV_OPTS=""
+
+configureProcessor() {
+
+  # 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"
+
+  return 0
+}
+
+configureMemory() {
+
+  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
+    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
+
+  DEV_OPTS+=" -object rng-random,id=objrng0,filename=/dev/urandom"
+  DEV_OPTS+=" -device virtio-rng-pci,rng=objrng0,id=rng0,bus=$bus,addr=0x1c"
+
+  return 0
+}
+
+buildArguments() {
+
+  ARGS="$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

@@ -1,803 +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:="unmap"}"      # Controls whether unmap (TRIM) commands are passed to the host.
-: "${DISK_ROTATION:="1"}"         # Rotation rate, set to 1 for SSD storage and increase for HDD
-
-# Sanitize all variables
-DISK_IO=$(strip "$DISK_IO")
-DISK_FMT=$(strip "$DISK_FMT")
-DISK_TYPE=$(strip "$DISK_TYPE")
-DISK_FLAGS=$(strip "$DISK_FLAGS")
-DISK_CACHE=$(strip "$DISK_CACHE")
-DISK_DISCARD=$(strip "$DISK_DISCARD")
-DISK_ROTATION=$(strip "$DISK_ROTATION")
-
-BOOT="$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 ($SYSTEM)" && exit 82
-
-if ! setOwner "$BOOT"; then
-  error "Failed to set the owner for \"$BOOT\" !"
-fi
-
-if ! setOwner "$SYSTEM"; then
-  error "Failed to set the owner for \"$SYSTEM\" !"
-fi
-
-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="$1"
-  local DISK_EXT DISK_FMT size
-
-  DISK_EXT=$(echo "${DISK_FILE//*./}" | sed 's/^.*\.//')
-  DISK_FMT=$(ext2fmt "$DISK_EXT")
-
-  case "${DISK_FMT,,}" in
-    raw)
-      stat -c%s "$DISK_FILE"
-      ;;
-
-    qcow2)
-      size=$(qemu-img info --output=json -f "$DISK_FMT" "$DISK_FILE" | jq -r '."virtual-size" // empty')
-      if [[ ! "$size" =~ ^[0-9]+$ ]]; then
-        error "Failed to determine virtual size of $DISK_FILE"
-        exit 78
-      fi
-      echo "$size"
-      ;;
-
-    *)
-      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
-}
-
-allocateRaw() {
-
-  local DISK_FILE="$1"
-  local DATA_SIZE="$2"
-
-  if disabled "$ALLOCATE"; then
-    truncate -s "$DATA_SIZE" "$DISK_FILE"
-    return $?
-  fi
-
-  fallocate -l "$DATA_SIZE" "$DISK_FILE" &>/dev/null && return 0
-  fallocate -l -x "$DATA_SIZE" "$DISK_FILE" && return 0
-  truncate -s "$DATA_SIZE" "$DISK_FILE" || return 1
-
-  return 0
-}
-
-getDiskOptions() {
-
-  local FS="$1"
-  local DISK_FMT="$2"
-  local DISK_PARAM="$DISK_ALLOC"
-
-  isCow "$FS" && DISK_PARAM+=",nocow=on"
-
-  if [[ "${DISK_FMT,,}" != "raw" ]]; then
-    [ -n "$DISK_FLAGS" ] && DISK_PARAM+=",$DISK_FLAGS"
-  fi
-
-  echo "$DISK_PARAM"
-  return 0
-}
-
-normalizeSize() {
-
-  local DISK_SPACE="$1"
-  local DISK_DESC="$2"
-  local DIR="$3"
-  local SPACE FREE GB DATA_SIZE
-
-  if [[ "${DISK_SPACE,,}" == "max" || "${DISK_SPACE,,}" == "half" ]]; then
-
-    local SPARE=1073741824
-    FREE=$(df --output=avail -B 1 "$DIR" | tail -n 1)
-
-    if [[ "${DISK_SPACE,,}" == "max" ]]; then
-      FREE=$(( FREE - SPARE ))
-    else
-      FREE=$(( FREE / 2 ))
-    fi
-
-    (( FREE < SPARE )) && FREE="$SPARE"
-    GB=$(( FREE / 1073741825 ))
-    DISK_SPACE="${GB}G"
-
-  fi
-
-  SPACE="${DISK_SPACE// /}"
-  [ -z "$SPACE" ] && SPACE="256G"
-  [ -z "${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 the ${DISK_DESC^^}_SIZE variable to at least 6 GB." && exit 73
-  fi
-
-  echo "$SPACE"
-  return 0
-}
-
-
-baseDir() {
-
-  local path="${1%/}"
-
-  [[ -z "$path" || "$path" == "/" ]] && {
-    echo "/"
-    return 0
-  }
-
-  path="${path#/}"
-  path="${path%%/*}"
-
-  echo "/$path"
-  return 0
-}
-createDisk() {
-
-  local DISK_FILE="$1"
-  local DISK_SPACE="$2"
-  local DISK_DESC="$3"
-  local DISK_FMT="$4"
-  local FS="$5"
-  local DATA_SIZE DIR BASE_DIR SPACE GB FA
-
-  rm -f "$DISK_FILE"
-
-  DATA_SIZE=$(numfmt --from=iec "$DISK_SPACE")
-
-  if ! disabled "$ALLOCATE"; then
-
-    # Check free diskspace
-    DIR=$(dirname "$DISK_FILE")
-    BASE_DIR=$(baseDir "$DIR")
-
-    if ! SPACE=$(df --output=avail -B 1 "$DIR" | tail -n 1); then
-      error "Failed to check free space in $BASE_DIR."
-      exit 76
-    fi
-
-    if (( DATA_SIZE > SPACE )); then
-      GB=$(formatBytes "$SPACE")
-      error "Not enough free space to create a $DISK_DESC of ${DISK_SPACE/G/ GB} in $BASE_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 "$DISK_FILE"; } || :
-      fi
-
-      if ! allocateRaw "$DISK_FILE" "$DATA_SIZE"; then
-        rm -f "$DISK_FILE"
-        error "$FAIL" && exit 77
-      fi
-      ;;
-    qcow2)
-
-      local DISK_PARAM
-      DISK_PARAM=$(getDiskOptions "$FS" "$DISK_FMT")
-
-      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="$5"
-  local CUR_SIZE DATA_SIZE DIR BASE_DIR SPACE GB
-
-  CUR_SIZE=$(getSize "$DISK_FILE") || exit 71
-  DATA_SIZE=$(numfmt --from=iec "$DISK_SPACE")
-  local REQ=$(( DATA_SIZE - CUR_SIZE ))
-  (( REQ < 1 )) && error "Shrinking disks is not supported yet, please increase ${DISK_DESC^^}_SIZE." && exit 71
-
-  if ! disabled "$ALLOCATE"; then
-
-    # Check free diskspace
-    DIR=$(dirname "$DISK_FILE")
-    BASE_DIR=$(baseDir "$DIR")
-
-    if ! SPACE=$(df --output=avail -B 1 "$DIR" | tail -n 1); then
-      error "Failed to check free space in $BASE_DIR."
-      exit 76
-    fi
-
-    if (( REQ > SPACE )); then
-      GB=$(formatBytes "$SPACE")
-      error "Not enough free space to resize $DISK_DESC to ${DISK_SPACE/G/ GB} in $BASE_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 "${DISK_FMT,,}" in
-    raw)
-
-      if ! allocateRaw "$DISK_FILE" "$DATA_SIZE"; then
-        error "$FAIL" && exit 75
-      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 $SOURCE_FILE does not exist?" && exit 79
-
-  local TMP_FILE="$DISK_BASE.tmp"
-  rm -f "$TMP_FILE"
-
-  local DIR BASE_DIR FA
-  DIR=$(dirname "$TMP_FILE")
-  BASE_DIR=$(baseDir "$DIR")
-
-  if ! disabled "$ALLOCATE"; then
-
-    local CUR_SIZE SPACE GB
-
-    # Check free diskspace
-    CUR_SIZE=$(getSize "$SOURCE_FILE") || exit 79
-
-    if ! SPACE=$(df --output=avail -B 1 "$DIR" | tail -n 1); then
-      error "Failed to check free space in $BASE_DIR."
-      exit 76
-    fi
-
-    if (( CUR_SIZE > SPACE )); then
-      GB=$(formatBytes "$SPACE")
-      error "Not enough free space to convert $DISK_DESC to $DST_FMT in $BASE_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 "$msg, please wait until completed..."
-
-  local CONV_FLAGS="-p"
-  local DISK_PARAM
-  DISK_PARAM=$(getDiskOptions "$FS" "$DST_FMT")
-
-  if [[ "$DST_FMT" != "raw" ]]; then
-    if disabled "$ALLOCATE"; then
-      CONV_FLAGS+=" -c"
-    fi
-  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 $BASE_DIR, is there enough space available?" && exit 79
-  fi
-
-  if [[ "$DST_FMT" == "raw" ]]; then
-    if ! disabled "$ALLOCATE"; then
-
-      # Work around qemu-img bug
-      if ! CUR_SIZE=$(stat -c%s "$TMP_FILE"); then
-        error "Failed to determine converted image size: $TMP_FILE"
-        exit 79
-      fi
-
-      if ! fallocate -l "$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 $TMP_FILE"
-        fi
-      fi
-    fi
-  fi
-
-  if ! rm -f "$SOURCE_FILE"; then
-    rm -f "$TMP_FILE"
-    error "Failed to remove old $DISK_DESC image $SOURCE_FILE."
-    exit 79
-  fi
-
-  if ! mv "$TMP_FILE" "$DST_FILE"; then
-    rm -f "$TMP_FILE"
-    error "Failed to move converted $DISK_DESC image to $DST_FILE."
-    exit 79
-  fi
-
-  if isCow "$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="$3"
-  local DIR BASE_DIR FA
-
-  DIR=$(dirname "$DISK_FILE")
-  BASE_DIR=$(baseDir "$DIR")
-  [ ! -d "$DIR" ] && return 0
-
-  if [[ "${FS,,}" == "overlay"* && "${ENGINE,,}" == "docker" ]]; then
-    warn "the filesystem of $BASE_DIR is OverlayFS, this usually means it was binded to an invalid path!"
-  fi
-
-  if [[ "${FS,,}" == "fuse"* ]]; then
-    warn "the filesystem of $BASE_DIR is FUSE, this extra layer will negatively affect performance!"
-  fi
-
-  if ! supportsDirect "$FS"; then
-    warn "the filesystem of $BASE_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
-        warn "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 "$result"
-      ;;
-  esac
-
-  return 0
-}
-
-finishDisks () {
-
-  case "${DISK_TYPE,,}" in
-    "blk" | "scsi" | "virtio-blk" | "virtio-scsi" )
-      [[ "$DISK_OPTS" != *" -object iothread,id=io2"* ]] && DISK_OPTS+=" -object iothread,id=io2" ;;
-  esac
-
-  if ! enabled "$DISK_DISABLE"; then
-    html "Initialized disks successfully..."
-  fi
-
-  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="$9"
-  local DISK_EXT DIR SPACE DATA_SIZE FS PREV_FMT PREV_EXT CUR_SIZE LEFT FREE USED
-
-  DISK_EXT=$(fmt2ext "$DISK_FMT")
-  local DISK_FILE="$DISK_BASE.$DISK_EXT"
-
-  DIR=$(dirname "$DISK_FILE")
-  [ ! -d "$DIR" ] && return 0
-
-  SPACE=$(normalizeSize "$DISK_SPACE" "$DISK_DESC" "$DIR")
-  DATA_SIZE=$(numfmt --from=iec "$SPACE")
-
-  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") || exit 71
-
-    if (( DATA_SIZE > CUR_SIZE )); then
-
-      resizeDisk "$DISK_FILE" "$SPACE" "$DISK_DESC" "$DISK_FMT" "$FS" || exit $?
-
-    else
-
-      if (( DATA_SIZE < CUR_SIZE )); then
-
-        if [[ "${DISK_SPACE,,}" != "max" && "${DISK_SPACE,,}" != "half" ]]; then
-          info "You decreased the ${DISK_DESC^^}_SIZE variable to ${DISK_SPACE/G/ GB} but shrinking disks is not supported, will be ignored..."
-        fi
-
-      fi
-    fi
-
-  else
-
-    createDisk "$DISK_FILE" "$SPACE" "$DISK_DESC" "$DISK_FMT" "$FS" || exit $?
-
-  fi
-
-  if [ -f "$DISK_FILE" ] && disabled "$ALLOCATE"; then
-
-    CUR_SIZE=$(getSize "$DISK_FILE") || exit 73
-    USED=$(du -sB 1 "$DISK_FILE" | cut -f1)
-    FREE=$(df --output=avail -B 1 "$DIR" | tail -n 1)
-    LEFT=$(( CUR_SIZE - USED - FREE ))
-    (( LEFT < 0 )) && LEFT=0
-
-    if (( LEFT > 0 )); then
-
-      local GB BASE_DIR
-      GB=$(formatBytes "$FREE")
-      BASE_DIR=$(baseDir "$DIR")
-      LEFT=$(formatBytes "$LEFT")
-      CUR_SIZE=$(formatBytes "$CUR_SIZE")
-      msg="The virtual size of the ${DISK_DESC,,} is $CUR_SIZE"
-
-      if [ -n "$USED" ] && [[ "$USED" != "0" ]]; then
-        USED=$(formatBytes "$USED")
-        msg+=" (of which $USED is used)"
-      fi
-
-      info "$msg, but there is only $GB of free space remaining in $BASE_DIR now."
-      info "Please consider making at least $LEFT more space available in $BASE_DIR for future expansions."
-
-    fi
-
-  fi
-
-  if [ -f "$DISK_FILE" ]; then
-    if ! setOwner "$DISK_FILE"; then
-      error "Failed to set the owner for \"$DISK_FILE\" !"
-      exit 77
-    fi
-  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 $DISK_DEV cannot be found! Please add it to the 'devices' section of your compose file." && exit 55
-
-  local sectors=""
-  local dev_type=""
-  dev_type=$(lsblk -no TYPE "$DISK_DEV" 2>/dev/null | head -n1)
-
-  # Only detect and apply sector sizes for partitions, not whole disks
-  # Whole disk passthrough with explicit sector sizes causes DSM not to recognize the disk
-  if [[ "$dev_type" == "part" ]]; then
-    local result=""
-    local logical=""
-    local physical=""
-
-    result=$(fdisk -l "$DISK_DEV" 2>/dev/null | grep -m 1 -o "(logical/physical): .*" | cut -c 21- || true)
-
-    if [ -n "$result" ]; then
-      logical="${result%% *}"
-      physical=$(echo "$result" | grep -m 1 -o "/ .*" | cut -c 3- || true)
-      physical="${physical%% *}"
-    fi
-
-    if [ -z "$logical" ] || [ -z "$physical" ]; then
-      warn "Failed to determine the sector size for $DISK_DEV"
-    elif [[ "$physical" != "512" ]]; then
-      sectors=",logical_block_size=$logical,physical_block_size=$physical"
-    fi
-  fi
-
-  DISK_OPTS+=$(createDevice "$DISK_DEV" "$DISK_TYPE" "$DISK_INDEX" "$DISK_ADDRESS" "raw" "$DISK_IO" "$DISK_CACHE" "" "$sectors")
-
-  return 0
-}
-
-[ -z "${DISK_OPTS:-}" ] && DISK_OPTS=""
-[ -z "${DISK_TYPE:-}" ] && DISK_TYPE="scsi"
-[ -z "${DISK_NAME:-}" ] && DISK_NAME="data"
-[ -z "${DISK_DISABLE:-}" ] && DISK_DISABLE=""
-
-if ! enabled "$DISK_DISABLE"; then
-  msg="Initializing disks..."
-  html "$msg"
-  enabled "$DEBUG" && echo "$msg"
-fi
-
-if [[ "${DISK_IO,,}" == "native" && "${DISK_CACHE,,}" != "none" && "${DISK_CACHE,,}" != "directsync" ]]; then
-  warn "DISK_IO=native requires direct I/O caching, using DISK_IO=threads with DISK_CACHE=$DISK_CACHE."
-  DISK_IO="threads"
-fi
-
-case "${DISK_DISCARD,,}" in
-  "y" | "yes" | "true" | "1" | "on" | "unmap" )
-    DISK_DISCARD="unmap" ;;
-
-  "n" | "no" | "false" | "0" | "off" | "ignore" )
-    DISK_DISCARD="ignore" ;;
-
-  * )
-    warn "Invalid DISK_DISCARD value '$DISK_DISCARD', using 'unmap'."
-    DISK_DISCARD="unmap" ;;
-esac
-
-if [[ ! "$DISK_ROTATION" =~ ^[0-9]+$ ]]; then
-  warn "Invalid DISK_ROTATION value '$DISK_ROTATION', using 1."
-  DISK_ROTATION="1"
-fi
-
-DISK_FMT="${DISK_FMT,,}"
-
-case "$DISK_FMT" in
-  "raw" | "qcow2" ) ;;
-  * ) error "Invalid DISK_FMT specified, value \"$DISK_FMT\" is not recognized!" && exit 78 ;;
-esac
-
-case "${DISK_TYPE,,}" in
-  "ide" | "sata" | "nvme" | "usb" | "scsi" | "blk" | "virtio-blk" | "virtio-scsi" | "auto" | "none" ) ;;
-  * ) error "Invalid DISK_TYPE specified, value \"$DISK_TYPE\" is not recognized!" && exit 80 ;;
-esac
-
-if [[ "$DISK_FLAGS" =~ [[:space:]] ]]; then
-  error "Invalid DISK_FLAGS value '$DISK_FLAGS', spaces are not allowed."
-  exit 78
-fi
-
-if [ -z "$ALLOCATE" ]; then
-  ALLOCATE="N"
-fi
-
-if disabled "$ALLOCATE"; 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" "" "")
-
-if enabled "$DISK_DISABLE"; then
-  finishDisks
-  return 0
-fi
-
-DISK1_FILE="$STORAGE/${DISK_NAME}"
-DISK2_FILE="/storage2/${DISK_NAME}2"
-DISK3_FILE="/storage3/${DISK_NAME}3"
-DISK4_FILE="/storage4/${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"
-
-DISK_FILES=( "$DISK1_FILE" "$DISK2_FILE" "$DISK3_FILE" "$DISK4_FILE" )
-DISK_DESCS=( "disk" "disk2" "disk3" "disk4" )
-DISK_SIZES=( "$DISK_SIZE" "$DISK2_SIZE" "$DISK3_SIZE" "$DISK4_SIZE" )
-DISK_DEVICES=( "$DEVICE" "$DEVICE2" "$DEVICE3" "$DEVICE4" )
-DISK_INDEXES=( "3" "4" "5" "6" )
-DISK_ADDRESSES=( "0xc" "0xd" "0xe" "0xf" )
-
-for i in "${!DISK_FILES[@]}"; do
-
-  if [ -n "${DISK_DEVICES[i]}" ]; then
-    addDevice "${DISK_DEVICES[i]}" "$DISK_TYPE" "${DISK_INDEXES[i]}" "${DISK_ADDRESSES[i]}" || exit $?
-  else
-    addDisk "${DISK_FILES[i]}" "$DISK_TYPE" "${DISK_DESCS[i]}" "${DISK_SIZES[i]}" "${DISK_INDEXES[i]}" "${DISK_ADDRESSES[i]}" "$DISK_FMT" "$DISK_IO" "$DISK_CACHE" || exit $?
-  fi
-
-done
-
-finishDisks
-
-return 0

src/display.sh

@@ -6,33 +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 ! enabled "$GPU" || [[ "$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
 
 msg="Configuring display drivers..."
+
 html "$msg"
 enabled "$DEBUG" && echo "$msg"
 
-DISPLAY_OPTS="-display egl-headless,rendernode=$RENDERNODE"
+DISPLAY_OPTS="-display egl-headless,rendernode=${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))"
 
@@ -48,7 +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

@@ -5,20 +5,35 @@ set -Eeuo pipefail
 : "${APP:="Virtual DSM"}"
 : "${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
-. memory.sh     # Check available memory
+. balloon.sh    # Initialize ballooning
 . config.sh     # Configure arguments
 . finish.sh     # Finish initialization
 
@@ -32,14 +47,17 @@ if ! enabled "$SHUTDOWN"; then
   exec "${cmd[@]}" ${ARGS:+ $ARGS}
 fi
 
-if [ ! -t 1 ] || [ ! -c /dev/tty ]; then
+if ! interactive; then
   "${cmd[@]}" ${ARGS:+ $ARGS} &
 else
-  "${cmd[@]}" ${ARGS:+ $ARGS} </dev/tty >/dev/tty &
+  startConsole
+  startQemu "${cmd[@]}" ${ARGS:+ $ARGS}
 fi
 
+pid=$!
 rc=0
-wait $! || rc=$?
+
+wait "$pid" || rc=$?
 [ -f "$QEMU_END" ] && exit "$rc"
 
 sleep 1 & wait $!

src/finish.sh

@@ -1,8 +1,18 @@
 #!/usr/bin/env bash
 set -Eeuo pipefail
 
-if enabled "$DEBUG"; then
-  printf "QEMU arguments:\n\n%s\n\n" "${ARGS// -/$'\n-'}"
+fKill "progress.sh"
+
+if [ -s "$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

@@ -1,322 +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" 
-
-URL=$(strip "$URL")
-
-if [ -n "$URL" ] && [ ! -s "$FILE" ] && [ ! -d "$DIR" ]; then
-  BASE=$(basename "$URL" .pat)
-  if [ ! -s "$STORAGE/$BASE.system.img" ]; then
-    BASE=$(basename "${URL%%\?*}" .pat)
-    printf -v BASE '%b' "${BASE//%/\\x}"
-    BASE="${BASE//[!A-Za-z0-9._-]/_}"
-  fi
-  if [[ "${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)
-  printf -v BASE '%b' "${BASE//%/\\x}"
-  BASE="${BASE//[!A-Za-z0-9._-]/_}"
-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"* && "${ENGINE,,}" == "docker" ]]; then
-  warn "the filesystem of $STORAGE is OverlayFS, this usually means it was binded to an invalid path!"
-fi
-
-if [[ "${FS,,}" == "fuse"* ]]; then
-  warn "the filesystem of $STORAGE is FUSE, this extra layer will negatively affect performance!"
-fi
-
-if [[ "${FS,,}" == "ecryptfs" || "${FS,,}" == "tmpfs" ]]; then
-  warn "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="$STORAGE/tmp"
-  rm -rf "$TMP"
-  if ! makeDir "$TMP"; then
-    error "Failed to create directory \"$TMP\" !" && exit 93
-  fi
-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 $SPACE_MB available but need at least 2 GB." && exit 93
-  fi
-  rm -rf "$TMP" && mkdir -p "$TMP"
-fi
-
-# Check free diskspace
-ROOT_SPACE=536870912
-SPACE=$(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" -print -quit)
-[ -z "$BOOT" ] && error "The PAT file contains no boot image." && exit 67
-[ ! -s "$BOOT" ] && error "The PAT boot image archive is empty." && exit 67
-
-unzip -q -o "$BOOT" -d "$TMP"
-BOOT="${BOOT%.zip}"
-
-SYSTEM="$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 $SYSTEM for the system disk." && exit 98
-fi
-
-! setOwner "$SYSTEM" && error "Failed to set the owner for \"$SYSTEM\" !"
-
-if [[ "${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"
+  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
 
-if ! makeDir "$MOUNT"; then
-  error "Failed to create directory \"$MOUNT\" !" && exit 93
-fi
+  if ! touch "$SYSTEM"; then
+    error "Could not create file $SYSTEM for the system disk."
+    return 98
+  fi
 
-MSG="Extracting system partition..."
-info "Install: $MSG" && html "$MSG"
+  setOwner "$SYSTEM" || warn "failed to set the owner for \"$SYSTEM\" !"
 
-HDA="$TMP/hda1"
-IDB="$TMP/indexdb"
-PKG="$TMP/packages"
-HDP="$TMP/synohdpack_img"
+  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
 
-[ ! -s "$HDA.tgz" ] && error "The PAT file contains no OS image." && exit 64
-mv "$HDA.tgz" "$HDA.txz"
+  if ! fallocate -l "$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
 
-[ -d "$PKG" ] && mv "$PKG/" "$MOUNT/.SynoUpgradePackages/"
-rm -f "$MOUNT/.SynoUpgradePackages/ActiveInsight-"*
+  # 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"
 
-INDEX_DB="$MOUNT/usr/syno/synoman/indexdb"
+  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
 
-if [ -s "$IDB.txz" ]; then
-  mkdir -p "$INDEX_DB"
-fi
+  sfdisk -q "$SYSTEM" < "$part" || return $?
 
-LABEL="1.44.1-42218"
-OFFSET="1048576"    # 2048 * 512
-NUMBLOCKS="2097152" # (16777216 * 512) / 4096
-MSG="Installing system partition..."
+  local mount="$tmp/system"
+  rm -rf "$mount" || return $?
 
-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 $NUMBLOCKS"
+  if ! makeDir "$mount"; then
+    error "Failed to create directory \"$mount\" !"
+    return 93
+  fi
 
-rm -rf "$MOUNT"
-echo "$BASE" > "$STORAGE/dsm.ver"
-! setOwner "$STORAGE/dsm.ver" && error "Failed to set the owner for \"$STORAGE/dsm.ver\" !"
+  return 0
+}
 
-if [[ "$URL" == "file://$STORAGE/$BASE.pat" ]]; then
-  rm -f "$PAT"
-else
-  mv -f "$PAT" "$STORAGE/$BASE.pat"
-fi
+installSystemPartition() {
 
-if [ -f "$STORAGE/$BASE.pat" ]; then
-  ! setOwner "$STORAGE/$BASE.pat" && error "Failed to set the owner for \"$STORAGE/$BASE.pat\" !"
-fi
+  local tmp="$1"
+  local mount="$tmp/system"
+  local msg="Extracting system partition..."
 
-mv -f "$BOOT" "$STORAGE/$BASE.boot.img"
-! setOwner "$STORAGE/$BASE.boot.img" && error "Failed to set the owner for \"$STORAGE/$BASE.boot.img\" !"
+  info "Install: $msg" && html "$msg" || return $?
 
-rm -rf "$TMP"
+  local hda="$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/memory.sh

@@ -1,111 +0,0 @@
-#!/usr/bin/env bash
-set -Eeuo pipefail
-
-msg="Checking memory..."
-enabled "$DEBUG" && echo "$msg"
-
-RAM_AVAIL=$(free -b | grep -m 1 Mem: | awk '{print $7}')
-AVAIL_MEM=$(formatBytes "$RAM_AVAIL")
-
-checkConfiguredMemory() {
-
-  local wanted msg
-
-  if disabled "$RAM_CHECK" || [[ "${RAM_SIZE,,}" == "max" || "${RAM_SIZE,,}" == "half" ]]; then
-    return 0
-  fi
-
-  wanted=$(numfmt --from=iec "$RAM_SIZE")
-
-  if (( (wanted + RAM_SPARE) > RAM_AVAIL )); then
-    msg="Your configured RAM_SIZE of ${RAM_SIZE/G/ GB} is too high for the $AVAIL_MEM of free memory available,"
-    if [[ "${FS,,}" == "zfs" ]]; then
-      info "$msg but since ZFS is active this will be ignored."
-    else
-      RAM_SIZE="max"
-      warn "$msg it will automatically be adjusted to a lower amount."
-    fi
-  else
-    if (( (wanted + (RAM_SPARE * 3)) > RAM_AVAIL )); then
-      msg="your configured RAM_SIZE of ${RAM_SIZE/G/ GB} is very close to the $AVAIL_MEM of free memory available,"
-      if [[ "${FS,,}" == "zfs" ]]; then
-        info "$msg but since ZFS is active this will be ignored."
-      else
-        warn "$msg please consider a lower amount."
-      fi
-    fi
-  fi
-
-  return 0
-}
-
-configureHalfMemory() {
-
-  local wanted
-
-  if [[ "${RAM_SIZE,,}" != "half" ]]; then
-    return 0
-  fi
-
-  if (( (RAM_AVAIL / 2) > RAM_SPARE )); then
-    wanted=$(( (RAM_AVAIL / 2) / 1048577 ))
-    RAM_SIZE="${wanted}M"
-    info "Allocated $wanted MB of RAM for the virtual machine."
-  else
-    RAM_SIZE="max"
-  fi
-
-  return 0
-}
-
-configureMaxMemory() {
-
-  local wanted
-
-  if [[ "${RAM_SIZE,,}" != "max" ]]; then
-    return 0
-  fi
-
-  if (( RAM_AVAIL < (RAM_SPARE * 2) )); then
-
-    wanted=$(( RAM_AVAIL / 2 ))
-
-  else
-
-    wanted=$(( RAM_AVAIL - (RAM_SPARE * 3) ))
-
-    if (( wanted < (RAM_SPARE * 6) )); then
-      wanted=$(( RAM_AVAIL - RAM_SPARE ))
-    fi
-
-  fi
-
-  wanted=$(( wanted / 1048577 ))
-  RAM_SIZE="${wanted}M"
-
-  info "Allocated $wanted MB of RAM for the virtual machine."
-
-  return 0
-}
-
-checkMinimumMemory() {
-
-  local wanted
-
-  wanted=$(numfmt --from=iec "$RAM_SIZE")
-
-  if [ "$wanted" -lt "$RAM_MINIMUM" ]; then
-    wanted=$(( wanted / 1048577 ))
-    error "Not enough memory available, there is only $wanted MB left!"
-    exit 16
-  fi
-
-  return 0
-}
-
-checkConfiguredMemory
-configureHalfMemory
-configureMaxMemory
-checkMinimumMemory
-
-return 0

src/power.sh

@@ -2,115 +2,50 @@
 set -Eeuo pipefail
 
 : "${SHUTDOWN:="Y"}"        # Graceful ACPI shutdown
-: "${TIMEOUT:="115"}"       # QEMU termination timeout
+: "${TIMEOUT:="105"}"       # QEMU termination timeout
 : "${API_TIMEOUT:="90"}"    # External API call timeout
 
 # Configure QEMU for graceful shutdown
 
 API_CMD=6
-API_HOST="127.0.0.1:$COM_PORT"
 
-# Configure QEMU for graceful shutdown
+SHUTDOWN_SKIP=0
+SHUTDOWN_SIGNAL=0
 
 QEMU_END="$QEMU_DIR/qemu.end"
-
-_trap() {
-
-  local func="$1"; shift
-  local sig
-  TRAP_PID=$BASHPID
-
-  for sig; do
-    trap "$func $sig" "$sig"
-  done
-
-  return 0
-}
-
-signalCode() {
-
-  local sig="$1"
-
-  case "$sig" in
-    SIGHUP)  echo 129 ;;
-    SIGINT)  echo 130 ;;
-    SIGQUIT) echo 131 ;;
-    SIGABRT) echo 134 ;;
-    SIGTERM) echo 143 ;;
-    *)       echo 0 ;;
-  esac
-
-  return 0
-}
-
-displayReason() {
-
-  local reason="$1"
-
-  case "$reason" in
-    129 ) echo "SIGHUP" ;;
-    130 ) echo "SIGINT" ;;
-    131 ) echo "SIGQUIT" ;;
-    134 ) echo "SIGABRT" ;;
-    143 ) echo "SIGTERM" ;;
-    * )   echo "$reason" ;;
-  esac
-
-  return 0
-}
-
-readQemuPid() {
-
-  local -n _pid="$1"
-
-  if [ ! -s "$QEMU_PID" ] || ! read -r _pid <"$QEMU_PID"; then
-    return 1
-  fi
-
-  return 0
-}
-
-forceKillQemu() {
-
-  local reason="$1"
-  local pid=""
-  local display
-
-  ! readQemuPid pid && return 0
-  ! isAlive "$pid" && return 0
-
-  display=$(displayReason "$reason")
-  error "Forcefully terminating $(app), reason: $display..."
-  { disown "$pid" || :; kill -9 -- "$pid" || :; } 2>/dev/null
-
-  return 0
-}
-
-cleanupHelpers() {
-
-  local pids=( "${HOST_PID:-}" "${WSD_PID:-}" \
-               "${WEB_PID:-}" "${PASST_PID:-}" "${DNSMASQ_PID:-}" )
-
-  mKill "${pids[@]}"
-  fKill "print.sh"
-
-  closeNetwork
-  return 0
-}
+CONSOLE_PID="$QEMU_DIR/console.pid"
+CONSOLE_SOCKET="$QEMU_DIR/console.sock"
+QEMU_START_PID="$QEMU_DIR/qemu.start.pid"
 
 finish() {
 
-  local reason=$1
-  touch "$QEMU_END"
+  local reason=$1 failed=0
+
+  # A nonzero exit is unexpected only when QEMU_END is missing.
+  if [ ! -f "$QEMU_END" ] && (( reason != 0 )); then
+    failed=1
+  fi
+
+  touch "$QEMU_END" || :
 
   forceKillQemu "$reason"
-  cleanupHelpers
+  cleanupHelpers "$HOST_PID"
+  
+  fKill "print.sh"
+  rm -f -- "$HOST_API_SOCKET" "$HOST_AGENT_SOCKET"
 
-  if ! waitPidFile "$QEMU_PID" 10; then
+  if ! waitQemuExit 10; then
     warn "Timed out while waiting for $(app) to exit!"
   fi
 
-  (( reason != 1 )) && echo && echo "❯ Shutdown completed!"
+  stopConsole
+  echo
+
+  if (( failed == 0 )); then
+    echo "❯ Shutdown completed!"
+  else
+    error "QEMU exited unexpectedly!"
+  fi
 
   exit "$reason"
 }
@@ -119,15 +54,16 @@ sendGuestShutdown() {
 
   local pid="$1"
   local response
-  local url
 
+  # 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
   # nc -q 1 -w 1 -U "$QEMU_DIR/monitor.sock" &> /dev/null <<<'system_powerdown' || :
 
   # Send shutdown command to guest agent via serial port
   API_TIMEOUT=$(strip "$API_TIMEOUT")
-  url="http://$API_HOST/read?command=$API_CMD&timeout=$API_TIMEOUT"
-  response=$(curl -sk -m "$(( API_TIMEOUT+2 ))" -S "$url" 2>&1)
+  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
 
@@ -148,15 +84,14 @@ sendGuestShutdown() {
 
 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
-  local elapsed
-  local timeout_left
-  local min
 
   TIMEOUT=$(strip "$TIMEOUT")
   if [[ ! "$TIMEOUT" =~ ^[0-9]+$ ]]; then
-    TIMEOUT=115
+    TIMEOUT=105
   fi
 
   if (( TIMEOUT >= 30 )); then
@@ -167,10 +102,10 @@ normalizeTimeout() {
     cleanup_grace=4
   fi
 
-  elapsed=$((SECONDS - start))
-  timeout_left=$((TIMEOUT - elapsed))
+  local elapsed=$((SECONDS - start))
+  local timeout_left=$((TIMEOUT - elapsed))
 
-  min=$((term_grace + cleanup_grace + 1))
+  local min=$((term_grace + cleanup_grace + 1))
   (( timeout_left < min )) && timeout_left=$min
 
   wait_until=$((timeout_left - cleanup_grace))
@@ -184,18 +119,19 @@ waitForShutdown() {
   local cnt=0
   local pid="$1"
   local name="$APP"
-  local slp
 
-  while (( cnt <= wait_until )); do
+  while (( cnt <= wait_until && SHUTDOWN_SKIP == 0 )); do
 
     sleep 1 &
-    slp=$!
+    local slp=$!
 
     # Stop waiting if the process has exited
-    ! isAlive "$pid" && break
+    isAlive "$pid" || break
 
+    # 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 "$QEMU_PID" ] && break
+    [ ! -s "$QEMU_START_PID" ] && [ ! -s "$QEMU_PID" ] && break
 
     if (( cnt == sigterm_at )); then
       info "${name^} is still running, sending SIGTERM... ($cnt/$wait_until)"
@@ -204,7 +140,7 @@ waitForShutdown() {
       info "Waiting for $name to shut down... ($cnt/$wait_until)"
     fi
 
-    wait "$slp"
+    wait "$slp" || :
     (( cnt++ ))
 
   done
@@ -212,32 +148,47 @@ waitForShutdown() {
   return 0
 }
 
-graceful_shutdown() {
+gracefulShutdown() {
 
   local sig="$1"
-  local pid=""
-  local code=0
+  local pid code
 
   [[ $BASHPID != "$TRAP_PID" ]] && return
 
   code=$(signalCode "$sig")
 
-  if [ -f "$QEMU_END" ]; then
-    echo && info "Received $1 signal while already shutting down..."
+  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
 
-  set +e
   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 $1 signal, sending shutdown command..."
+
+  echo && info "Received $sig signal, sending shutdown command..."
 
   if ! readQemuPid pid; then
-    warn "QEMU PID file ($QEMU_PID) does not exist?"
-    finish "$code"
+    if ! interactive || ! waitQemuPid pid; then
+      warn "QEMU PID file does not exist?"
+      finish "$code"
+    fi
   fi
 
-  if ! isAlive "$pid"; then
+  if [ -z "$pid" ] || ! isAlive "$pid"; then
     warn "QEMU process with PID $pid does not exist?"
     finish "$code"
   fi
@@ -249,9 +200,21 @@ graceful_shutdown() {
   finish "$code"
 }
 
-! enabled "$SHUTDOWN" && return 0
+enableTrap() {
+
+  enabled "$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"
 
-_trap graceful_shutdown SIGTERM SIGHUP SIGABRT SIGQUIT
-
 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

@@ -9,6 +9,7 @@ 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
@@ -17,10 +18,12 @@ file="/run/shm/dsm.url"
 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"
@@ -35,9 +38,9 @@ exitIfShuttingDown() {
 
 queryGuest() {
 
-  local rc
-
-  { json=$(curl -m 20 -sk "$url"); rc=$?; } || :
+  # Query DSM through the qemu-host sidecar rather than the guest network,
+  # which may not be configured yet.
+  { json=$(curl --unix-socket "$socket" -m 20 -sk "$url"); local rc=$?; } || :
 
   exitIfShuttingDown
 
@@ -53,9 +56,8 @@ readJsonField() {
 
   local query="$1"
   local result
-  local rc
 
-  { result=$(jq -r "$query" <<< "$json"); rc=$?; } || :
+  { result=$(jq -r "$query" <<< "$json"); local rc=$?; } || :
 
   if (( rc != 0 )); then
     error "$jq_err $rc ( $json )"
@@ -73,12 +75,12 @@ readJsonField() {
 
 readGuestStatus() {
 
-  local result msg rc
+  local result msg
 
   result=$(readJsonField '.status') || return 1
 
   if [[ "$result" != "success" ]]; then
-    { msg=$(jq -r '.message // empty' <<< "$json"); rc=$?; } || :
+    { msg=$(jq -r '.message // empty' <<< "$json"); local rc=$?; } || :
 
     if (( rc != 0 )); then
       error "$jq_err $rc ( $json )"
@@ -117,6 +119,8 @@ writeDsmLocation() {
 
 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
@@ -139,14 +143,29 @@ pollGuestLocation() {
   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 title body script html
+  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}"
@@ -157,18 +176,21 @@ writeDhcpPage() {
 
   echo "$html" > "$page"
   echo "$body" > "$msgs"
+  writeAtomic "$command" "portal http://$location"
 
   return 0
 }
 
 buildStaticMessage() {
 
-  local nic ip port
+  local nic ip
 
   nic=$(<"$driver")
   ip=$(<"$address")
-  port="${location##*:}"
+  local port="${location##*:}"
 
+  # 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 $port"
   else
@@ -195,6 +217,7 @@ exitIfShuttingDown
 location=$(<"$file")
 
 if enabled "$DHCP"; then
+  checkAddressConflict
   writeDhcpPage
 else
   buildStaticMessage

src/proc.sh

@@ -1,201 +0,0 @@
-#!/usr/bin/env bash
-set -Eeuo pipefail
-
-# Docker environment variables
-
-: "${HOST_CPU:=""}"
-: "${CPU_FLAGS:=""}"
-: "${CPU_MODEL:=""}"
-
-HOST_CPU=$(strip "$HOST_CPU")
-CPU_FLAGS=$(strip "$CPU_FLAGS")
-CPU_MODEL=$(strip "$CPU_MODEL")
-
-selectClocksource() {
-
-  CLOCKSOURCE="tsc"
-  [[ "${ARCH,,}" == "arm64" ]] && CLOCKSOURCE="arch_sys_counter"
-  CLOCK="/sys/devices/system/clocksource/clocksource0/current_clocksource"
-
-  return 0
-}
-
-checkClocksource() {
-
-  local result
-
-  if [ ! -f "$CLOCK" ]; then
-    warn "file \"$CLOCK\" cannot be found?"
-    return 0
-  fi
-
-  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 '$CLOCKSOURCE'." ;;
-  esac
-
-  return 0
-}
-
-checkSse42() {
-
-  if ! grep -qw "sse4_2" <<< "$flags"; then
-    error "Your CPU does not have the SSE4 instruction set that Virtual DSM requires!"
-    ! enabled "$DEBUG" && exit 88
-  fi
-
-  return 0
-}
-
-trimSpaces() {
-
-  local value="$1"
-
-  value="${value#"${value%%[![:space:]]*}"}"
-  value="${value%"${value##*[![:space:]]}"}"
-
-  echo "$value"
-  return 0
-}
-
-removeCpuArgument() {
-
-  local args=" ${ARGUMENTS:-} "
-
-  while [[ "$args" =~ [[:space:]]-cpu([[:space:]][^[:space:]]+|=[^[:space:]]+)? ]]; do
-    local cpu="${BASH_REMATCH[0]}"
-    args="${args/$cpu/ }"
-    warn "Ignoring '${cpu#" "}' from ARGUMENTS, use CPU_MODEL and CPU_FLAGS instead."
-  done
-
-  ARGUMENTS=$(trimSpaces "$args")
-
-  return 0
-}
-
-configureKvmCpuModel() {
-
-  CPU_FEATURES="kvm=on,l3-cache=on,+hypervisor"
-  KVM_OPTS=",accel=kvm -enable-kvm -global kvm-pit.lost_tick_policy=discard"
-
-  if [ -z "$CPU_MODEL" ]; then
-    CPU_MODEL="host"
-    CPU_FEATURES+=",migratable=no"
-  fi
-
-  return 0
-}
-
-appendKvmInvtscFeature() {
-
-  if grep -qw "svm" <<< "$flags"; then
-
-    # AMD processor
-    if grep -qw "tsc_scale" <<< "$flags"; then
-      CPU_FEATURES+=",+invtsc"
-    fi
-
-  else
-
-    # Intel processor
-    local vmx
-    vmx=$(sed -ne '/^vmx flags/s/^.*: //p' /proc/cpuinfo)
-
-    if grep -qw "tsc_scaling" <<< "$vmx"; then
-      CPU_FEATURES+=",+invtsc"
-    fi
-
-  fi
-
-  return 0
-}
-
-configureKvm() {
-
-  configureKvmCpuModel
-  checkSse42
-  appendKvmInvtscFeature
-
-  return 0
-}
-
-configureTcgCpuModel() {
-
-  if [ -n "$CPU_MODEL" ]; then
-    return 0
-  fi
-
-  if [[ "$ARCH" == "amd64" ]]; then
-    CPU_MODEL="max"
-    CPU_FEATURES+=",migratable=no"
-  else
-    CPU_MODEL="qemu64"
-  fi
-
-  return 0
-}
-
-configureTcg() {
-
-  KVM_OPTS=""
-  CPU_FEATURES="l3-cache=on,+hypervisor"
-
-  if [[ "$ARCH" == "amd64" ]]; then
-    KVM_OPTS=" -accel tcg,thread=multi"
-  fi
-
-  configureTcgCpuModel
-  CPU_FEATURES+=",+ssse3,+sse4.1,+sse4.2"
-
-  return 0
-}
-
-composeCpuFlags() {
-
-  CPU_FLAGS="${CPU_MODEL}${CPU_FEATURES:+,$CPU_FEATURES}${CPU_FLAGS:+,$CPU_FLAGS}"
-
-  return 0
-}
-
-configureHostCpuName() {
-
-  if [ -z "$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+=" $ARCH"
-    fi
-  fi
-
-  return 0
-}
-
-selectClocksource
-checkClocksource
-
-flags=$(sed -ne '/^flags/s/^.*: //p' /proc/cpuinfo)
-
-if ! disabled "$KVM"; then
-  configureKvm
-else
-  configureTcg
-fi
-
-removeCpuArgument
-composeCpuFlags
-configureHostCpuName
-
-return 0

src/progress.sh

@@ -1,45 +0,0 @@
-#!/usr/bin/env bash
-set -Eeuo pipefail
-
-info="/run/shm/msg.html"
-
-escape () {
-    local s
-    s=${1//&/\&}
-    s=${s//</\&lt;}
-    s=${s//>/\&gt;}
-    s=${s//'"'/\&quot;}
-    printf -- %s "$s"
-    return 0
-}
-
-path="$1"
-total="$2"
-body=$(escape "$3")
-
-if [[ "$body" == *"..." ]]; then
-  body="<p class=\"loading\">${body::-3}</p>"
-fi
-
-while true
-do
-
-  if [ ! -s "$path" ] && [ ! -d "$path" ]; then
-    bytes="0"
-  else
-    bytes=$(du -sb "$path" 2>/dev/null | cut -f1) || bytes="0"
-  fi
-  
-  if (( bytes > 4096 )); then
-    if [ -z "$total" ] || [[ "$total" == "0" ]] || [ "$bytes" -gt "$total" ]; then
-      size=$(numfmt --to=iec --suffix=B "$bytes" | sed -r 's/([A-Z])/ \1/') || size="${bytes} bytes"
-    else
-      size="$(echo "$bytes" "$total" | awk '{printf "%.1f", $1 * 100 / $2}')"
-      size="$size%"
-    fi
-    [[ "$size" != "0.0%" ]] && echo "${body//(\[P\])/($size)}"> "$info"
-  fi
-
-  sleep 1 & wait $!
-
-done

src/reset.sh

@@ -1,289 +0,0 @@
-#!/usr/bin/env bash
-set -Eeuo pipefail
-
-trap 'error "Status $? while: $BASH_COMMAND (line $LINENO/$BASH_LINENO)"' ERR
-enabled "${TRACE:-}" && set -o functrace && trap 'echo "# $BASH_COMMAND" >&2' DEBUG
-
-[ ! -f "/run/entry.sh" ] && error "Script must be run inside the container!" && exit 11
-[ "$(id -u)" -ne "0" ] && error "Script must be executed with root privileges." && exit 12
-
-# Docker environment variables
-
-: "${TZ:=""}"              # System timezone
-: "${KVM:="Y"}"            # KVM acceleration
-: "${DEBUG:="N"}"          # Disable debugging mode
-: "${COUNTRY:=""}"         # Country code for mirror
-: "${ALLOCATE:=""}"        # Preallocate diskspace
-: "${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
-: "${STORAGE:="/storage"}" # Storage folder location
-
-detectEngine() {
-
-  if [ -f "/run/.containerenv" ]; then
-    ENGINE="${container:-}"
-    if [[ "${ENGINE,,}" == *"podman"* ]]; then
-      ROOTLESS="Y"
-      ENGINE="Podman"
-    else
-      [ -z "$ENGINE" ] && ENGINE="Kubernetes"
-    fi
-  fi
-
-  return 0
-}
-
-checkPrivileged() {
-
-  local cap_bnd
-  local last_cap
-  local max_cap
-
-  # Get the capability bounding set
-  cap_bnd=$(grep '^CapBnd:' /proc/$$/status | awk '{print $2}')
-  cap_bnd=$(printf "%d" "0x${cap_bnd}")
-
-  # Get the last capability number
-  last_cap=$(cat /proc/sys/kernel/cap_last_cap)
-
-  # Calculate the maximum capability value
-  max_cap=$(((1 << (last_cap + 1)) - 1))
-
-  if [ "$cap_bnd" -eq "$max_cap" ]; then
-    ROOTLESS="N"
-    PRIVILEGED="Y"
-  fi
-
-  return 0
-}
-
-normalizeCpuCores() {
-
-  CPU_CORES=$(strip "$CPU_CORES")
-  [ -z "$CPU_CORES" ] && CPU_CORES=2
-  [[ "${CPU_CORES,,}" == "max" ]] && CPU_CORES="$CORES"
-  [[ "${CPU_CORES,,}" == "half" ]] && CPU_CORES=$(( CORES / 2 ))
-  [ -z "${CPU_CORES##*[!0-9]*}" ] && error "Invalid amount of CPU_CORES: $CPU_CORES" && exit 15
-
-  [ "$CPU_CORES" -lt "1" ] && CPU_CORES=1
-  if [ "$CPU_CORES" -gt "$CORES" ]; then
-    warn "The amount for CPU_CORES (${CPU_CORES}) exceeds the amount of logical cores available (${CORES}) and will be limited."
-    CPU_CORES="$CORES"
-  fi
-
-  return 0
-}
-
-checkStorage() {
-
-  # Check system
-
-  QEMU_DIR="/run/shm"
-
-  if [ ! -d "/dev/shm" ]; then
-    error "Directory /dev/shm not found!" && exit 14
-  else
-    [ ! -d "$QEMU_DIR" ] && ln -s /dev/shm "$QEMU_DIR"
-  fi
-
-  QEMU_PID="$QEMU_DIR/qemu.pid"
-
-  # Check folder
-
-  if [[ "${STORAGE,,}" != "/storage" ]]; then
-    mkdir -p "$STORAGE"
-  fi
-
-  if [ ! -d "$STORAGE" ]; then
-    error "Storage folder ($STORAGE) not found!" && exit 13
-  fi
-
-  if [ ! -w "$STORAGE" ]; then
-    msg="Storage folder ($STORAGE) is not writeable!"
-    msg+=" If SELinux is active, you need to add the \":Z\" flag to the bind mount."
-    error "$msg" && exit 13
-  fi
-
-  return 0
-}
-
-checkFilesystem() {
-
-  # Check filesystem
-  FS=$(stat -f -c %T "$STORAGE")
-
-  if [[ "${FS,,}" == "ecryptfs" || "${FS,,}" == "tmpfs" ]]; then
-    DISK_IO="threads"
-    DISK_CACHE="writeback"
-  fi
-
-  return 0
-}
-
-normalizeRamSize() {
-
-  # Read memory
-  RAM_AVAIL=$(free -b | grep -m 1 Mem: | awk '{print $7}')
-  RAM_TOTAL=$(free -b | grep -m 1 Mem: | awk '{print $2}')
-
-  RAM_SPARE=500000000
-  RAM_MINIMUM=136314880
-
-  RAM_SIZE=$(strip "$RAM_SIZE")
-  RAM_SIZE="${RAM_SIZE// /}"
-  [ -z "$RAM_SIZE" ] && RAM_SIZE="2G"
-
-  if [[ "${RAM_SIZE,,}" != "max" && "${RAM_SIZE,,}" != "half" ]]; then
-
-    if [ -z "${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: $RAM_SIZE" && exit 16
-    wanted=$(numfmt --from=iec "$RAM_SIZE")
-    [ "$wanted" -lt "$RAM_MINIMUM" ] && error "RAM_SIZE is too low: $RAM_SIZE" && exit 16
-
-  fi
-
-  return 0
-}
-
-checkKvm() {
-
-  # Check KVM support
-
-  if [[ "${PLATFORM,,}" == "x64" ]]; then
-    TARGET="amd64"
-  else
-    TARGET="arm64"
-  fi
-
-  if disabled "$KVM"; then
-    warn "KVM acceleration is disabled, this will cause the machine to run about 10 times slower!"
-  else
-    if [[ "${ARCH,,}" != "$TARGET" ]]; then
-      KVM="N"
-      warn "your CPU architecture is ${ARCH^^} and cannot provide KVM acceleration for ${PLATFORM^^} instructions, so the machine will run about 10 times slower."
-    fi
-  fi
-
-  if ! disabled "$KVM"; 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
-        if [[ "${PLATFORM,,}" == "x64" ]]; then
-          flags=$(sed -ne '/^flags/s/^.*: //p' /proc/cpuinfo)
-          if ! grep -qw "vmx\|svm" <<< "$flags"; then
-            KVM_ERR="(not enabled in BIOS)"
-          fi
-          if ! grep -qw "sse4_2" <<< "$flags"; then
-            error "Your CPU does not have the SSE4 instruction set that Virtual DSM requires!"
-            ! enabled "$DEBUG" && exit 88
-          fi
-        fi
-      fi
-    fi
-
-    if [ -n "$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 $KVM_ERR, this will cause the machine to run about 10 times slower."
-            error "See the FAQ for possible causes, or disable acceleration by adding the \"KVM=N\" variable (not recommended)." ;;
-        esac
-        ! enabled "$DEBUG" && exit 88
-      fi
-    fi
-
-  fi
-
-  return 0
-}
-
-# Sanitize variables
-TZ=$(strip "$TZ")
-STORAGE=$(strip "$STORAGE")
-COUNTRY=$(strip "$COUNTRY")
-DISK_SIZE=$(strip "$DISK_SIZE")
-
-# Helper variables
-ROOTLESS="N"
-PRIVILEGED="N"
-ENGINE="Docker"
-PROCESS="${APP,,}"
-PROCESS="${PROCESS// /-}"
-
-detectEngine
-
-echo "❯ Starting $APP for $ENGINE v$(</etc/version)..."
-echo "❯ For support visit $SUPPORT"
-
-checkPrivileged
-
-INFO="/run/shm/msg.html"
-PAGE="/run/shm/index.html"
-TEMPLATE="/var/www/index.html"
-FOOTER1="$APP for $ENGINE v$(</etc/version)"
-FOOTER2="<a href='$SUPPORT'>$SUPPORT</a>"
-
-SOCKETS=1
-CPU=$(cpu)
-SYS=$(uname -r)
-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)" <<< "$(lscpu)"; then
-  SOCKETS=$(lscpu | grep -m 1 -i 'socket(s)' | awk '{print $2}')
-  [ -z "${SOCKETS##*[!0-9]*}" ] && SOCKETS=1
-  [ "$SOCKETS" -lt "1" ] && SOCKETS=1
-fi
-
-normalizeCpuCores
-checkStorage
-checkFilesystem
-normalizeRamSize
-
-# Print system info
-SYS="${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: ${SYS}..."
-echo
-
-checkKvm
-
-# Cleanup files
-rm -f "$QEMU_DIR"/dsm.url
-rm -f "$QEMU_DIR"/qemu.* "$QEMU_DIR"/*.pid "$QEMU_DIR"/*.sock
-
-# Cleanup dirs
-rm -rf /tmp/dsm
-rm -rf "$STORAGE/tmp"
-
-return 0

src/serial.sh

@@ -4,6 +4,7 @@ set -Eeuo pipefail
 # Docker environment variables
 
 : "${HOST_MAC:=""}"
+: "${HOST_CPU:=""}"
 : "${HOST_DEBUG:=""}"
 : "${HOST_MODEL:=""}"
 : "${HOST_SERIAL:=""}"
@@ -11,12 +12,16 @@ set -Eeuo pipefail
 
 # 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() {
-  local m
 
   if [ -z "$HOST_MAC" ]; then
     return 0
@@ -25,12 +30,35 @@ validateHostMac() {
   HOST_MAC="${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: '$HOST_MAC', should be 12 or 17 digits long!"
+    exit 28
+  fi
+
+  return 0
+}
+
+configureHostCpuName() {
+
+  if [ -z "$HOST_CPU" ]; then
+    [[ "${CPU,,}" != "unknown" ]] && HOST_CPU="$CPU"
+  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
 
   return 0
@@ -38,9 +66,13 @@ validateHostMac() {
 
 buildHostArguments() {
 
+  # 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")
 
   [ -n "$HOST_MAC" ] && HOST_ARGS+=("-mac=$HOST_MAC")
   [ -n "$HOST_MODEL" ] && HOST_ARGS+=("-model=$HOST_MODEL")
@@ -52,30 +84,50 @@ buildHostArguments() {
 
 startHostBinary() {
 
+  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 "${HOST_ARGS[@]}" &
     { set +x; } 2>/dev/null
-    echo "$!" > "$HOST_PID"
+    pid=$!
     echo
   else
     ./host.bin "${HOST_ARGS[@]}" >/dev/null &
-    echo "$!" > "$HOST_PID"
+    pid=$!
   fi
 
+  printf '%s\n' "$pid" > "$HOST_PID"
+
   return 0
 }
 
-waitForPort() {
+waitForSocket() {
 
-  local port="$1"
+  local socket="$1"
   local exit_code="$2"
-  local cnt=0
+  local timeout=5 pid
+  local deadline=$((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
 
-  while ! nc -z -w2 127.0.0.1 "$port" > /dev/null 2>&1; do
     sleep 0.1
-    cnt=$((cnt + 1))
-    (( cnt > 50 )) && error "Failed to connect to qemu-host.." && exit "$exit_code"
   done
 
   return 0
@@ -83,26 +135,43 @@ waitForPort() {
 
 configureSerialPorts() {
 
-  # Configure serial ports
-  SERIAL_OPTS="-serial mon:stdio \
-        -device virtio-serial-pci,id=virtio-serial0,bus=pcie.0,addr=0x3 \
-        -chardev socket,id=charchannel0,host=127.0.0.1,port=$CHR_PORT,reconnect=10 \
+  local bus
+  bus=$(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
-
-HOST_PID="$QEMU_DIR/host.pid"
+configureHostCpuName
 
 buildHostArguments
 startHostBinary
 
-sleep 0.2
-
-waitForPort "$COM_PORT" 58
-waitForPort "$CHR_PORT" 59
+waitForSocket "$HOST_API_SOCKET" 58
+waitForSocket "$HOST_AGENT_SOCKET" 59
 
 configureSerialPorts
 

src/server.sh

@@ -1,76 +0,0 @@
-#!/usr/bin/env bash
-set -Eeuo pipefail
-
-: "${COM_PORT:="2210"}"    # Comm port
-: "${WEB_PORT:="5000"}"    # Webserver port
-: "${CHR_PORT:="12345"}"   # Character port
-: "${WSD_PORT:="8004"}"    # Websockets port
-
-# Sanitize port variables
-COM_PORT=$(strip "$COM_PORT")
-WEB_PORT=$(strip "$WEB_PORT")
-CHR_PORT=$(strip "$CHR_PORT")
-WSD_PORT=$(strip "$WSD_PORT")
-
-WEB_PID="/run/nginx.pid"
-WSD_PID="$QEMU_DIR/websocketd.pid"
-
-prepareWebFiles() {
-  cp -r /var/www/* "$QEMU_DIR"
-  rm -f "$WSD_PID" "$WEB_PID"
-
-  return 0
-}
-
-configureWebPorts() {
-  sed -i "s/listen 5000 default_server;/listen $WEB_PORT default_server;/g" /etc/nginx/sites-enabled/web.conf
-  sed -i "s/proxy_pass http:\/\/127.0.0.1:8004\/;/proxy_pass http:\/\/127.0.0.1:$WSD_PORT\/;/g" /etc/nginx/sites-enabled/web.conf
-
-  return 0
-}
-
-configureIpv6Listen() {
-
-  # shellcheck disable=SC2143
-  if [ -f /proc/net/if_inet6 ] && [[ "$(cat /proc/sys/net/ipv6/conf/all/disable_ipv6 2>/dev/null)" != "1" ]] && [ -n "$(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
-
-  return 0
-}
-
-configureWebServer() {
-
-  mkdir -p /etc/nginx/sites-enabled
-  cp /etc/nginx/default.conf /etc/nginx/sites-enabled/web.conf
-
-  configureWebPorts
-  configureIpv6Listen
-
-  return 0
-}
-
-startWebServer() {
-
-  # Start webserver
-  nginx -e stderr
-}
-
-startWebsocketServer() {
-
-  # Start websocket server
-  websocketd --address 127.0.0.1 --port="$WSD_PORT" /run/socket.sh >/var/log/websocketd.log &
-  echo "$!" > "$WSD_PID"
-}
-
-prepareWebFiles
-
-html "Starting $APP for $ENGINE..."
-
-if ! disabled "${WEB:-}"; then
-  configureWebServer
-  startWebServer
-  startWebsocketServer
-fi
-
-return 0

src/socket.sh

@@ -2,14 +2,20 @@
 set -Eeuo pipefail
 
 lastmsg=""
-path="/run/shm/msg.html"
+lastcmd=""
+status="/run/shm/msg.html"
+command="/run/shm/status.cmd"
+dir=$(dirname -- "$status")
+status_name=$(basename -- "$status")
+command_name=$(basename -- "$command")
 
-refresh() {
+# websocketd clients use s: for status updates and c: for control commands.
+refreshStatus() {
 
-  [ ! -f "$path" ] && return 0
-  [ ! -s "$path" ] && return 0
+  [ ! -f "$status" ] && return 0
+  [ ! -s "$status" ] && return 0
 
-  msg=$(< "$path") || return 0
+  msg=$(< "$status") || return 0
   msg="${msg%$'\n'}"
 
   [ -z "$msg" ] && return 0
@@ -17,15 +23,49 @@ refresh() {
 
   lastmsg="$msg"
   echo "s: $msg"
+
   return 0
 }
 
-refresh
+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
 
-inotifywait -m "$path" |
-  while read -r fp event fn; do
-    case "${event,,}" in
-      "modify"* ) refresh ;;
-      "delete_self" ) echo "c: vnc" ;;
-    esac    
   done

src/start.sh

@@ -1,6 +0,0 @@
-#!/usr/bin/env bash
-set -Eeuo pipefail
-
-# You can override this hook to execute a script before startup!
-
-return 0

src/utils.sh

@@ -1,370 +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: ${1:-}" "\E[0m\n" >&2; }
-
-strip() {
-  local value="${1:-}"
-
-  # Remove surrounding whitespace
-  value="${value#"${value%%[![:space:]]*}"}"
-  value="${value%"${value##*[![:space:]]}"}"
-
-  # Remove leading/trailing single/double quotes
-  value="${value%\"}"
-  value="${value#\"}"
-  value="${value%\'}"
-  value="${value#\'}"
-
-  # Remove surrounding whitespace again
-  value="${value#"${value%%[![:space:]]*}"}"
-  value="${value%"${value##*[![:space:]]}"}"
-
-  printf '%s' "$value"
-}
-
-enabled() {
-  case "$(strip "${1:-}")" in
-    Y|y|YES|Yes|yes|TRUE|True|true|1|ON|On|on) return 0 ;;
-    *) return 1 ;;
-  esac
-}
-
-disabled() {
-  case "$(strip "${1:-}")" in
-    N|n|NO|No|no|FALSE|False|false|0|OFF|Off|off) return 0 ;;
-    *) return 1 ;;
-  esac
-}
-
-formatBytes() {
-  local result
-  result=$(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="$1"
-  [ -z "$pid" ] && return 1
-
-  if kill -0 "$pid" 2>/dev/null; then
-    return 0
-  fi
-
-  return 1
-}
-
-waitPid() {
-  local i=0
-  local pid="$1"
-  local timeout="${2:-10}"
-
-  while [ -n "$pid" ] && isAlive "$pid"; do
-    sleep 0.2
-    i=$((i + 1))
-    (( i >= timeout * 5 )) && return 1
-  done
-
-  return 0
-}
-
-waitPidFile() {
-  local i=0
-  local pid=""
-  local file="$1"
-  local timeout="${2:-10}"
-
-  [ ! -s "$file" ] && return 0
-  ! read -r pid <"$file" && return 0
-  [ -z "$pid" ] && return 0
-
-  while [ -s "$file" ] && isAlive "$pid"; do
-    sleep 0.2
-    i=$((i + 1))
-    (( i >= timeout * 5 )) && return 1
-  done
-
-  rm -f -- "$file"
-  return 0
-}
-
-pKill() {
-  local pid="$1"
-  local timeout="${2:-10}"
-
-  { kill -15 -- "$pid" || :; } 2>/dev/null
-
-  if ! waitPid "$pid" "$timeout"; then
-    warn "Timed out while waiting for PID $pid"
-  fi
-
-  return 0
-}
-
-fWait() {
-  local i=0
-  local name="$1"
-  local timeout="${2:-10}"
-
-  [ -z "$name" ] && return 0
-
-  while pgrep -f -l "$name" >/dev/null; do
-    sleep 0.2
-    i=$((i + 1))
-    if (( i >= timeout * 5 )); then
-      warn "Timed out while waiting for process: $name"
-      break
-    fi
-  done
-
-  return 0
-}
-
-fKill() {
-  local name="$1"
-  local timeout="${2:-10}"
-
-  [ -z "$name" ] && return 0
-
-  { pkill -f "$name" || :; } 2>/dev/null
-  fWait "$name" "$timeout"
-
-  return 0
-}
-
-sKill() {
-  local pid=""
-  local file="$1"
-
-  [ ! -s "$file" ] && return 0
-  ! read -r pid <"$file" && return 0
-  [ -z "$pid" ] && return 0
-
-  if isAlive "$pid"; then
-    { kill -15 -- "$pid" || :; } 2>/dev/null
-  fi
-
-  return 0
-}
-
-mKill() {
-  local timeout=10
-  local files=("$@")
-
-  for file in "${files[@]}"; do
-    sKill "$file"
-  done
-
-  for file in "${files[@]}"; do
-    if ! waitPidFile "$file" "$timeout"; then
-      warn "Timed out while waiting for PID file: $file"
-    fi
-  done
-
-  return 0
-}
-
-setOwner() {
-  local file="$1"
-  local dir uid gid
-
-  [ ! -f "$file" ] && return 1
-
-  dir=$(dirname -- "$file")
-  uid=$(stat -c '%u' "$dir") || return 1
-  gid=$(stat -c '%g' "$dir") || return 1
-
-  ! chown "$uid:$gid" "$file" && return 1
-
-  return 0
-}
-
-makeDir() {
-  local path="$1"
-  local dir uid gid
-
-  [ -d "$path" ] && return 0
-  ! mkdir -p "$path" && return 1
-
-  dir=$(dirname -- "$path")
-  uid=$(stat -c '%u' "$dir") || return 1
-  gid=$(stat -c '%g' "$dir") || return 1
-
-  ! chown "$uid:$gid" "$path" && return 1
-
-  return 0
-}
-
-escape () {
-  local s
-  s=${1//&/\&amp;}
-  s=${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" > "$PAGE" || return 1
-  echo "$body" > "$INFO" || return 1
-
-  return 0
-}
-
-cpu() {
-  local ret
-  local cpu=""
-
-  ret=$(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="${cpu// [0-9][0-9][0-9] Core}"
-  cpu="${cpu// [0-9][0-9] Core}"
-  cpu="${cpu// [0-9] Core}"
-  cpu="${cpu//[0-9][0-9]th Gen }"
-  cpu="${cpu//[0-9]th Gen }"
-  cpu="${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 "$cpu"
-  return 0
-}
-
-hasDisk() {
-
-  enabled "${DISK_DISABLE:-}" && return 1
-
-  [ -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
-}
-
-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
-}
-
-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 / {
 
@@ -39,6 +49,6 @@ server {
       proxy_read_timeout 3600s;
       proxy_send_timeout 3600s;
 
-      proxy_pass http://127.0.0.1:8004/;
-    }    
+      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

@@ -1,15 +1,90 @@
+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 {
-        if (request) {
-            request.abort();
-        }
+        abortRequest();
 
         if (window.XMLHttpRequest) {
             request = new XMLHttpRequest();
@@ -34,67 +109,126 @@ function getURL() {
     return protocol + "//" + window.location.host + path;
 }
 
+function redirect(url) {
+
+    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;
-        var url = div.querySelector("a").href;
-        setTimeout(() => {
-            window.location.assign(url);
-        }, 3000);
+        return beginPortal(div.querySelector("a").href);
     }
 
-    setInfo(msg);
     return true;
 }
 
 function processInfo() {
-    try {
 
-        if (request.readyState != 4) {
-            return true;
-        }
+    if (request.readyState != 4) {
+        return true;
+    }
 
-        var msg = request.responseText;
-        if (msg == null || msg.length == 0) {
+    var response = request;
+    request = null;
 
-            if (booting) {
-                schedule();
-                return true;
-            }
+    var status = response.status;
 
-            window.location.reload();
-            return false;
-        }
+    if (status == 502 || status == 503 || status == 504) {
+        connectionLost();
+        schedule();
+        return true;
+    }
 
-        var notFound = (request.status == 404);
-
-        if (request.status == 200) {
-            if (msg.toLowerCase().indexOf("<html>") !== -1) {
-                notFound = true;
-            } else {
-                processMsg(msg);
-                if (msg.toLowerCase().indexOf("href=") == -1) {
-                    schedule();
-                }
-                return true;
-            }
-        }
-
-        if (notFound) {
-            setInfo("Connecting to web portal", true);
-            reload();
-            return true;
-        }
-
-        setError("Error: Received statuscode " + request.status);
-        return false;
-
-    } catch (e) {
-        setError("Error: " + e.message);
+    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) {
@@ -103,52 +237,277 @@ function extractContent(s) {
     return span.textContent || span.innerText;
 };
 
-function setInfo(msg, loading, error) {
-    try {
+function escapeContent(s) {
+    var span = document.createElement('span');
+    span.textContent = s;
+    return span.innerHTML;
+}
 
-        if (msg == null || msg.length == 0) {
-            return false;
-        }
+function rememberStatus(msg) {
 
-        if (msg.includes("Booting ")) {
-            booting = true;
-        }
-
-        var el = document.getElementById("info");
-
-        if (el.innerText == msg || el.innerHTML == msg) {
-            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);
-                return true;
-            }
-        }
-
-        el.innerHTML = msg;
-        return true;
-
-    } catch (e) {
-        console.log("Error: " + e.message);
+    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) {
+
+    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) {
@@ -156,14 +515,38 @@ function setError(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(() => {
-        window.location.reload();
+
+    if (document.hidden) {
+        return false;
+    }
+
+    clearNavigation();
+
+    navigationTimer = setTimeout(function() {
+        navigationTimer = null;
+        window.location.replace(window.location.href);
     }, 3000);
+
+    return true;
 }
 
 function connect() {
@@ -171,19 +554,49 @@ 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;
@@ -191,18 +604,27 @@ function connect() {
     };
 
     ws.onclose = function(e) {
+
+        connectionLost();
+
+        if (portal && portalUrl.length == 0) {
+            return;
+        }
+
         setTimeout(function() {
             connect();
         }, interval);
     };
 
     ws.onerror = function(e) {
+        connectionLost();
         ws.close();
-        if (!booting) {
-            window.location.reload();
-        }
     };
 }
 
+window.addEventListener("resize", resizeProgress);
+document.addEventListener("visibilitychange", visibilityChanged);
+rememberStatus(document.getElementById("info").innerHTML);
+
 schedule();
 connect();