feat: Improved start and stop logic (#1178)

Fixes #1152

.devcontainer/devcontainer.json

@@ -1,6 +1,6 @@
 {
   "name": "Virtual DSM",
-  "service": "vdsm",
+  "service": "dsm",
   "forwardPorts": [5000],
   "portsAttributes": {
     "5000": {
@@ -11,7 +11,5 @@
   "otherPortsAttributes": {
     "onAutoForward": "ignore"
   }, 
-  "dockerComposeFile": "codespaces.yml",
+  "dockerComposeFile": "codespaces.yml"
-  "workspaceFolder": "/workspaces/vdsm",
-  "initializeCommand": "docker system prune --all --force"
 }

.github/workflows/build.yml

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

.github/workflows/check.yml

@@ -9,7 +9,7 @@ jobs:
     steps:
       - 
         name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
       -
         name: Run ShellCheck
         uses: ludeeus/action-shellcheck@master
@@ -24,6 +24,6 @@ jobs:
           failure-threshold: warning
       -
         name: Validate JSON and YML files
-        uses: GrantBirki/json-yaml-validate@v4
+        uses: GrantBirki/json-yaml-validate@v5.0.0
         with:
           yaml_exclude_regex: ".*\\kubernetes\\.yml$"

.github/workflows/hub.yml

@@ -12,13 +12,15 @@ jobs:
   dockerHubDescription:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v5
+      -
-    - 
+        name: Checkout repo
-      name: Docker Hub Description
+        uses: actions/checkout@v6
-      uses: peter-evans/dockerhub-description@v5
+      - 
-      with:
+        name: Docker Hub Description
-        username: ${{ secrets.DOCKERHUB_USERNAME }}
+        uses: peter-evans/dockerhub-description@v5
-        password: ${{ secrets.DOCKERHUB_TOKEN }}
+        with:
-        repository: ${{ secrets.DOCKERHUB_REPO }}
+          username: ${{ secrets.DOCKERHUB_USERNAME }}
-        short-description: ${{ github.event.repository.description }}
+          password: ${{ secrets.DOCKERHUB_TOKEN }}
-        readme-filepath: ./readme.md
+          repository: ${{ secrets.DOCKERHUB_REPO }}
+          short-description: ${{ github.event.repository.description }}
+          readme-filepath: ./readme.md

.github/workflows/review.yml

@@ -15,7 +15,7 @@ jobs:
     steps:
       -
         name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
       -
         name: Spelling
         uses: reviewdog/action-misspell@v1
@@ -32,6 +32,7 @@ jobs:
         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 }}
@@ -52,8 +53,10 @@ jobs:
       -
         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 }}
       -
@@ -61,6 +64,7 @@ jobs:
         uses: reviewdog/action-shellcheck@v1
         with:
           level: warning
+          fail_level: error
           reporter: github-pr-review
-          shellcheck_flags: -x -e SC2001 -e SC2034 -e SC2064 -e SC2317 -e SC2153 -e SC2028          
+          shellcheck_flags: -x -e SC1091 -e SC2001 -e SC2034 -e SC2064 -e SC2317 -e SC2153 -e SC2028
           github_token: ${{ secrets.GITHUB_TOKEN }}

Dockerfile

@@ -14,6 +14,8 @@ FROM debian:trixie-slim
 ARG TARGETARCH
 ARG TARGETPLATFORM
 ARG VERSION_ARG="0.0"
+ARG VERSION_PASST="2026_05_26"
+
 ARG DEBCONF_NOWARNINGS="yes"
 ARG DEBIAN_FRONTEND="noninteractive"
 ARG DEBCONF_NONINTERACTIVE_SEEN="true"
@@ -39,7 +41,7 @@ RUN set -eu && \
         iproute2 \
         dnsmasq \
         fakeroot \
-        apt-utils \        
+        apt-utils \
         net-tools \
         e2fsprogs \
         qemu-utils \
@@ -49,7 +51,7 @@ RUN set -eu && \
         ca-certificates \
         netcat-openbsd \
         qemu-system-x86 && \
-    wget "https://github.com/qemus/passt/releases/download/v2025_09_19/passt_2025_09_19_${TARGETARCH}.deb" -O /tmp/passt.deb -q && \
+    wget "https://github.com/qemus/passt/releases/download/v${VERSION_PASST}/passt_${VERSION_PASST}_${TARGETARCH}.deb" -O /tmp/passt.deb -q --timeout=10 && \
     dpkg -i /tmp/passt.deb && \
     apt-get clean && \
     pip3 install --no-cache-dir --break-system-packages --root-user-action=ignore dissect.cstruct && \
@@ -57,7 +59,7 @@ RUN set -eu && \
     echo "allow br0" > /etc/qemu/bridge.conf && \
     unlink /etc/nginx/sites-enabled/default && \
     sed -i 's/^worker_processes.*/worker_processes 1;/' /etc/nginx/nginx.conf && \
-    echo "$VERSION_ARG" > /run/version && \
+    echo "$VERSION_ARG" > /etc/version && \
     rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*
 
 COPY --chmod=755 ./src /run/

src/check.sh

@@ -4,15 +4,15 @@ set -Eeuo pipefail
 : "${DHCP:="N"}"
 : "${NETWORK:="Y"}"
 
-[ -f "/run/shm/qemu.end" ] && echo "QEMU is shutting down.." && exit 1
+[ -f "/run/shm/qemu.end" ] && echo "QEMU is shutting down..." && exit 1
-[ ! -s "/run/shm/qemu.pid" ] && echo "QEMU is not running yet.." && exit 0
+[ ! -s "/run/shm/qemu.pid" ] && echo "QEMU is not running yet..." && exit 0
-[[ "$NETWORK" == [Nn]* ]] && echo "Networking is disabled.." && exit 0
+[[ "$NETWORK" == [Nn]* ]] && echo "Networking is disabled." && exit 0
 
 file="/run/shm/dsm.url"
 address="/run/shm/qemu.ip"
 gateway="/run/shm/qemu.gw"
 
-[ ! -s  "$file" ] && echo "DSM has not enabled networking yet.." && exit 1
+[ ! -s  "$file" ] && echo "DSM has not enabled networking yet..." && exit 1
 
 location=$(<"$file")
 

src/config.sh

@@ -3,6 +3,7 @@ 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"

src/disk.sh

@@ -264,17 +264,19 @@ convertDisk() {
   local FS="$7"
 
   [ -f "$DST_FILE" ] && error "Conversion failed, destination file $DST_FILE already exists?" && exit 79
-  [ ! -f "$SOURCE_FILE" ] && error "Conversion failed, source file $SOURCE_FILE does not exists?" && exit 79
+  [ ! -f "$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 FA
+  DIR=$(dirname "$TMP_FILE")
+
   if [[ "$ALLOCATE" != [Nn]* ]]; then
 
-    local DIR CUR_SIZE SPACE GB
+    local CUR_SIZE SPACE GB
 
     # Check free diskspace
-    DIR=$(dirname "$TMP_FILE")
     CUR_SIZE=$(getSize "$SOURCE_FILE")
     SPACE=$(df --output=avail -B 1 "$DIR" | tail -n 1)
 
@@ -424,6 +426,20 @@ createDevice () {
   return 0
 }
 
+finishDisks () {
+
+  case "${DISK_TYPE,,}" in
+    "blk" | "scsi" | "virtio-blk" | "virtio-scsi" )
+      DISK_OPTS+=" -object iothread,id=io2" ;;
+  esac
+
+  if [[ "$DISK_DISABLE" != [Yy1]* ]]; then
+    html "Initialized disks successfully..."
+  fi
+
+  return 0
+}
+
 addDisk () {
 
   local DISK_BASE="$1"
@@ -536,16 +552,15 @@ addDisk () {
       GB=$(formatBytes "$FREE")
       LEFT=$(formatBytes "$LEFT")
       CUR_SIZE=$(formatBytes "$CUR_SIZE")
-      msg="the virtual size of the ${DISK_DESC,,} is $CUR_SIZE"
+      msg="The virtual size of the ${DISK_DESC,,} is $CUR_SIZE"
 
-      if [[ "$USED" == "0" ]]; then
+      if [ -n "$USED" ] && [[ "$USED" != "0" ]]; then
-        msg+=","
-      else
         USED=$(formatBytes "$USED")
-        msg+=" (of which $USED is used),"
+        msg+=" (of which $USED is used)"
       fi
 
-      warn "$msg but there is only $GB of free space left in $DIR, make at least $LEFT more room available!"
+      info "$msg, but there is only $GB of free space remaining in $DIR now."
+      info "Please consider making at least $LEFT more space available in $DIR for future expansions."
 
     fi
 
@@ -573,18 +588,25 @@ addDevice () {
   [ ! -b "$DISK_DEV" ] && error "Device $DISK_DEV cannot be found! Please add it to the 'devices' section of your compose file." && exit 55
 
   local sectors=""
-  local result logical physical
+  local dev_type=""
-  result=$(fdisk -l "$DISK_DEV" | grep -m 1 -o "(logical/physical): .*" | cut -c 21-)
+  dev_type=$(lsblk -no TYPE "$DISK_DEV" 2>/dev/null | head -n1)
-  logical="${result%% *}"
-  physical=$(echo "$result" | grep -m 1 -o "/ .*" | cut -c 3-)
-  physical="${physical%% *}"
 
- if [ -n "$physical" ]; then
+  # Only detect and apply sector sizes for partitions, not whole disks
-    if [[ "$physical" != "512" ]]; then
+  # Whole disk passthrough with explicit sector sizes causes DSM not to recognize the disk
-      sectors=",logical_block_size=$logical,physical_block_size=$physical"
+  if [[ "$dev_type" == "part" ]]; then
+    local result logical physical
+    result=$(fdisk -l "$DISK_DEV" | grep -m 1 -o "(logical/physical): .*" | cut -c 21-)
+    logical="${result%% *}"
+    physical=$(echo "$result" | grep -m 1 -o "/ .*" | cut -c 3-)
+    physical="${physical%% *}"
+
+    if [ -n "$physical" ]; then
+      if [[ "$physical" != "512" ]]; then
+        sectors=",logical_block_size=$logical,physical_block_size=$physical"
+      fi
+    else
+      warn "Failed to determine the sector size for $DISK_DEV"
     fi
-  else
-    warn "Failed to determine the sector size for $DISK_DEV"
   fi
 
   DISK_OPTS+=$(createDevice "$DISK_DEV" "$DISK_TYPE" "$DISK_INDEX" "$DISK_ADDRESS" "raw" "$DISK_IO" "$DISK_CACHE" "" "$sectors")
@@ -592,13 +614,16 @@ addDevice () {
   return 0
 }
 
-msg="Initializing disks..."
-html "$msg"
-[[ "$DEBUG" == [Yy1]* ]] && echo "$msg"
-
 [ -z "${DISK_OPTS:-}" ] && DISK_OPTS=""
 [ -z "${DISK_TYPE:-}" ] && DISK_TYPE="scsi"
 [ -z "${DISK_NAME:-}" ] && DISK_NAME="data"
+[ -z "${DISK_DISABLE:-}" ] && DISK_DISABLE=""
+
+if [[ "$DISK_DISABLE" != [Yy1]* ]]; then
+  msg="Initializing disks..."
+  html "$msg"
+  [[ "$DEBUG" == [Yy1]* ]] && echo "$msg"
+fi
 
 case "${DISK_TYPE,,}" in
   "ide" | "sata" | "nvme" | "usb" | "scsi" | "blk" | "auto" | "none" ) ;;
@@ -620,38 +645,14 @@ fi
 DISK_OPTS+=$(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 [[ "$DISK_DISABLE" == [Yy1]* ]]; then
+  finishDisks
+  return 0
+fi
+
 DISK1_FILE="$STORAGE/${DISK_NAME}"
-if [ ! -f "$DISK1_FILE.img" ] && [ -f "$STORAGE/data${DISK_SIZE}.img" ]; then
-  # Fallback for legacy installs
-  mv "$STORAGE/data${DISK_SIZE}.img" "$DISK1_FILE.img"
-fi
-
 DISK2_FILE="/storage2/${DISK_NAME}2"
-if [ ! -f "$DISK2_FILE.img" ]; then
-  # Fallback for legacy installs
-  FALLBACK="/storage2/data.img"
-  if [[ -f "$DISK1_FILE.img" && -f "$FALLBACK" ]]; then
-    SIZE1=$(stat -c%s "$FALLBACK")
-    SIZE2=$(stat -c%s "$DISK1_FILE.img")
-    if [[ SIZE1 -ne SIZE2 ]]; then
-      mv "$FALLBACK" "$DISK2_FILE.img"
-    fi
-  fi
-fi
-
 DISK3_FILE="/storage3/${DISK_NAME}3"
-if [ ! -f "$DISK3_FILE.img" ]; then
-  # Fallback for legacy installs
-  FALLBACK="/storage3/data.img"
-  if [[ -f "$DISK1_FILE.img" && -f "$FALLBACK" ]]; then
-    SIZE1=$(stat -c%s "$FALLBACK")
-    SIZE2=$(stat -c%s "$DISK1_FILE.img")
-    if [[ SIZE1 -ne SIZE2 ]]; then
-      mv "$FALLBACK" "$DISK3_FILE.img"
-    fi
-  fi
-fi
-
 DISK4_FILE="/storage4/${DISK_NAME}4"
 
 : "${DISK2_SIZE:=""}"
@@ -698,7 +699,6 @@ else
   addDisk "$DISK4_FILE" "$DISK_TYPE" "disk4" "$DISK4_SIZE" "6" "0xf" "$DISK_FMT" "$DISK_IO" "$DISK_CACHE" || exit $?
 fi
 
-DISK_OPTS+=" -object iothread,id=io2"
+finishDisks
 
-html "Initialized disks successfully..."
 return 0

src/entry.sh

@@ -24,19 +24,23 @@ cd /run
 
 trap - ERR
 
-version=$(qemu-system-x86_64 --version | head -n 1 | cut -d '(' -f 1 | awk '{ print $NF }')
+cmd=(qemu-system-x86_64)
+version=$("${cmd[@]}" --version | awk 'NR==1 { print $4 }')
 info "Booting $APP using QEMU v$version..."
 
-if [[ "$CONSOLE" == [Yy]* ]]; then
+if [[ "$SHUTDOWN" != [Yy1]* ]]; then
-  exec qemu-system-x86_64 ${ARGS:+ $ARGS}
+  exec "${cmd[@]}" ${ARGS:+ $ARGS}
 fi
 
-{ qemu-system-x86_64 ${ARGS:+ $ARGS} >"$QEMU_OUT" 2>"$QEMU_LOG"; rc=$?; } || :
+if [ ! -t 1 ] || [ ! -c /dev/tty ]; then
-(( rc != 0 )) && error "$(<"$QEMU_LOG")" && exit 15
+  "${cmd[@]}" ${ARGS:+ $ARGS} &
+else
+  "${cmd[@]}" ${ARGS:+ $ARGS} </dev/tty >/dev/tty &
+fi
 
-terminal
+rc=0
-tail -fn +0 "$QEMU_LOG" --pid=$$ 2>/dev/null &
+wait $! || rc=$?
-cat "$QEMU_TERM" 2>/dev/null & wait $! || :
+[ -f "$QEMU_END" ] && exit "$rc"
 
 sleep 1 & wait $!
-[ ! -f "$QEMU_END" ] && finish 0
+finish "$rc"

src/memory.sh

@@ -1,14 +1,18 @@
 #!/usr/bin/env bash
 set -Eeuo pipefail
 
+msg="Checking memory..."
+[[ "$DEBUG" == [Yy1]* ]] && echo "$msg"
+
 RAM_AVAIL=$(free -b | grep -m 1 Mem: | awk '{print $7}')
+AVAIL_MEM=$(formatBytes "$RAM_AVAIL")
 
 if [[ "$RAM_CHECK" != [Nn]* && "${RAM_SIZE,,}" != "max" && "${RAM_SIZE,,}" != "half" ]]; then
 
-  AVAIL_MEM=$(formatBytes "$RAM_AVAIL")
+  wanted=$(numfmt --from=iec "$RAM_SIZE")
 
-  if (( (RAM_WANTED + RAM_SPARE) > RAM_AVAIL )); then
+  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 memory available,"
+    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 "$msg but since ZFS is active this will be ignored."
     else
@@ -16,8 +20,8 @@ if [[ "$RAM_CHECK" != [Nn]* && "${RAM_SIZE,,}" != "max" && "${RAM_SIZE,,}" != "h
       warn "$msg it will automatically be adjusted to a lower amount."
     fi
   else
-    if (( (RAM_WANTED + (RAM_SPARE * 3)) > RAM_AVAIL )); then
+    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 memory available,"
+      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
@@ -30,57 +34,45 @@ fi
 
 if [[ "${RAM_SIZE,,}" == "half" ]]; then
 
-  RAM_WANTED=$(( RAM_AVAIL / 2 ))
+  if (( (RAM_AVAIL / 2) > RAM_SPARE )); then
-  RAM_WANTED=$(( RAM_WANTED / 1073741825 ))
+    wanted=$(( (RAM_AVAIL / 2) / 1048577 ))
-
+    RAM_SIZE="${wanted}M"
-  if (( "$RAM_WANTED" < 1 )); then
+    info "Allocated $wanted MB of RAM for the virtual machine."
-    RAM_WANTED=$(( RAM_AVAIL / 2 ))
-    RAM_WANTED=$(( RAM_WANTED / 1048577 ))
-    RAM_SIZE="${RAM_WANTED}M"
   else
-    RAM_SIZE="${RAM_WANTED}G"
+    RAM_SIZE="max"
   fi
 
 fi
 
 if [[ "${RAM_SIZE,,}" == "max" ]]; then
 
-  RAM_WANTED=$(( RAM_AVAIL - (RAM_SPARE * 3) ))
+  if (( RAM_AVAIL < (RAM_SPARE * 2) )); then
-  RAM_WANTED=$(( RAM_WANTED / 1073741825 ))
 
-  if (( "$RAM_WANTED" < 1 )); then
+    wanted=$(( RAM_AVAIL / 2 ))
 
-    RAM_WANTED=$(( RAM_AVAIL - (RAM_SPARE * 2) ))
-    RAM_WANTED=$(( RAM_WANTED / 1073741825 ))
-
-    if (( "$RAM_WANTED" < 1 )); then
-
-      RAM_WANTED=$(( RAM_AVAIL - RAM_SPARE ))
-      RAM_WANTED=$(( RAM_WANTED / 1073741825 ))
-
-      if (( "$RAM_WANTED" < 1 )); then
-
-        RAM_WANTED=$(( RAM_AVAIL - RAM_SPARE ))
-        RAM_WANTED=$(( RAM_WANTED / 1048577 ))
-
-        if (( "$RAM_WANTED" < 1 )); then
-
-          RAM_WANTED=$(( RAM_AVAIL ))
-          RAM_WANTED=$(( RAM_WANTED / 1048577 ))
-
-        fi
-
-        RAM_SIZE="${RAM_WANTED}M"
-      else
-        RAM_SIZE="${RAM_WANTED}G"
-      fi
-    else
-      RAM_SIZE="${RAM_WANTED}G"
-    fi
   else
-    RAM_SIZE="${RAM_WANTED}G"
+
+    wanted=$(( 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 $wanted MB of RAM for the virtual machine."
+
+fi
+
+wanted=$(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

src/network.sh

@@ -117,15 +117,16 @@ configureDHCP() {
 
 configureDNS() {
 
-  local if="$1"
+  local fa="$1"
   local ip="$2"
   local mac="$3"
   local host="$4"
   local mask="$5"
   local gateway="$6"
+  local arguments="$DNSMASQ_OPTS"
 
   echo "$gateway" > /run/shm/qemu.gw
-  
+
   [[ "${DNSMASQ_DISABLE:-}" == [Yy1]* ]] && return 0
   [[ "$DEBUG" == [Yy1]* ]] && echo "Starting dnsmasq daemon..."
 
@@ -140,42 +141,50 @@ configureDNS() {
       chmod 644 /var/lib/misc/dnsmasq.leases
 
       # dnsmasq configuration:
-      DNSMASQ_OPTS+=" --dhcp-authoritative"
+      arguments+=" --dhcp-authoritative"
 
       # Set DHCP range and host
-      DNSMASQ_OPTS+=" --dhcp-range=$ip,$ip"
+      arguments+=" --dhcp-range=$ip,$ip"
-      DNSMASQ_OPTS+=" --dhcp-host=$mac,,$ip,$host,infinite"
+      arguments+=" --dhcp-host=$mac,,$ip,$host,infinite"
 
       # Set DNS server and gateway
-      DNSMASQ_OPTS+=" --dhcp-option=option:netmask,$mask"
+      arguments+=" --dhcp-option=option:netmask,$mask"
-      DNSMASQ_OPTS+=" --dhcp-option=option:router,$gateway"
+      arguments+=" --dhcp-option=option:router,$gateway"
-      DNSMASQ_OPTS+=" --dhcp-option=option:dns-server,$gateway"
+      arguments+=" --dhcp-option=option:dns-server,$gateway"
 
   esac
 
   # Set interfaces
-  DNSMASQ_OPTS+=" --interface=$if"
+  arguments+=" --interface=$fa"
-  DNSMASQ_OPTS+=" --bind-interfaces"
+  arguments+=" --bind-interfaces"
+
+  # Workaround NET_RAW capability
+  arguments+=" --no-ping"
 
   # Add DNS entry for container
-  DNSMASQ_OPTS+=" --address=/host.lan/$gateway"
+  arguments+=" --address=/host.lan/$gateway"
 
   # Set local dns resolver to dnsmasq when needed
-  [ -f /etc/resolv.dnsmasq ] && DNSMASQ_OPTS+=" --resolv-file=/etc/resolv.dnsmasq"
+  [ -f /etc/resolv.dnsmasq ] && arguments+=" --resolv-file=/etc/resolv.dnsmasq"
 
   # Enable logging to file
   local log="/var/log/dnsmasq.log"
   rm -f "$log"
-  DNSMASQ_OPTS+=" --log-facility=$log"
+  arguments+=" --log-facility=$log"
 
-  DNSMASQ_OPTS=$(echo "$DNSMASQ_OPTS" | sed 's/\t/ /g' | tr -s ' ' | sed 's/^ *//')
+  arguments=$(echo "$arguments" | sed 's/\t/ /g' | tr -s ' ' | sed 's/^ *//')
-  [[ "$DEBUG" == [Yy1]* ]] && printf "Dnsmasq arguments:\n\n%s\n\n" "${DNSMASQ_OPTS// -/$'\n-'}"
+  [[ "$DEBUG" == [Yy1]* ]] && printf "Dnsmasq arguments:\n\n%s\n\n" "${arguments// -/$'\n-'}"
 
-  if ! $DNSMASQ ${DNSMASQ_OPTS:+ $DNSMASQ_OPTS}; then
+  { $DNSMASQ ${arguments:+ $arguments}; rc=$?; } || :
 
-    local msg="Failed to start Dnsmasq, reason: $?"
+  if (( rc != 0 )); then
-    [ -f "$log" ] && cat "$log"
+
-    error "$msg"
+    local msg="Failed to start Dnsmasq, reason: $rc"
+
+    if [[ "${NETWORK,,}" == "slirp" || "${NETWORK,,}" == "passt" || "$ROOTLESS" != [Yy1]* || "$DEBUG" == [Yy1]* ]]; then
+      [ -f "$log" ] && [ -s "$log" ] && cat "$log"
+      error "$msg"
+    fi
 
     return 1
   fi
@@ -189,9 +198,7 @@ configureDNS() {
 
 getHostPorts() {
 
-  local list=""
+  local list="${HOST_PORTS// /},"
-  list+="$MON_PORT,"
-  list+="${HOST_PORTS// /},"
 
   # Remove duplicates
   list=$(echo "${list//,,/,}," | awk 'BEGIN{RS=ORS=","} !seen[$0]++' | sed 's/,*$//g')
@@ -239,14 +246,13 @@ getUserPorts() {
   done
 
   # Remove duplicates
-  ports=$(echo "${ports//,,/,}," | awk 'BEGIN{RS=ORS=","} !seen[$0]++' | sed 's/,*$//g')
+  echo "${ports//,,/,}," | awk 'BEGIN{RS=ORS=","} !seen[$0]++' | sed 's/,*$//g'
-
-  echo "$ports"
   return 0
 }
 
 getSlirp() {
 
+  local ip="$1"
   local args=""
   local list=""
 
@@ -262,17 +268,15 @@ getSlirp() {
       proto="udp"
       num="${port%/udp}"
     elif [[ "$port" != *"/tcp" ]]; then
-      args+="hostfwd=$proto::$num-$VM_NET_IP:$num,"
+      args+="hostfwd=$proto::$num-$ip:$num,"
       proto="udp"
       num="${port%/udp}"
     fi
 
-    args+="hostfwd=$proto::$num-$VM_NET_IP:$num,"
+    args+="hostfwd=$proto::$num-$ip:$num,"
   done
 
-  args=$(echo "$args" | sed 's/,*$//g')
+  echo "$args" | sed 's/,*$//g'
-
-  echo "${args%?}"
   return 0
 }
 
@@ -293,7 +297,7 @@ configureSlirp() {
   NET_OPTS="-netdev user,id=hostnet0,ipv4=on,host=$gateway,net=${gateway%.*}.0/24,dhcpstart=$ip,${ipv6}hostname=$VM_NET_HOST"
 
   local forward=""
-  forward=$(getSlirp)
+  forward=$(getSlirp "$ip")
   [ -n "$forward" ] && NET_OPTS+=",$forward"
 
   if [[ "${DNSMASQ_DISABLE:-}" == [Yy1]* ]]; then
@@ -347,7 +351,7 @@ configurePasst() {
 
   PASST_OPTS+=" -H $VM_NET_HOST"
   PASST_OPTS+=" -M $GATEWAY_MAC"
-  PASST_OPTS+=" -P  $PASST_PID"
+  PASST_OPTS+=" -P $PASST_PID"
   PASST_OPTS+=" -l $log"
   PASST_OPTS+=" -q"
 
@@ -357,7 +361,10 @@ configurePasst() {
   fi
 
   PASST_OPTS=$(echo "$PASST_OPTS" | sed 's/\t/ /g' | tr -s ' ' | sed 's/^ *//')
-  [[ "$DEBUG" == [Yy1]* ]] && printf "Passt arguments:\n\n%s\n\n" "${PASST_OPTS// -/$'\n-'}"
+
+  if [[ "$DEBUG" == [Yy1]* || "$PASST_DEBUG" == [Yy1]* ]]; then
+    printf "Passt arguments:\n\n%s\n\n" "${PASST_OPTS// -/$'\n-'}"
+  fi
 
   [ ! -f "$PASST" ] && cp /usr/bin/passt* /run
 
@@ -368,7 +375,7 @@ configurePasst() {
     { $PASST ${PASST_OPTS:+ $PASST_OPTS}; rc=$?; } || :
 
     if (( rc != 0 )); then
-      [ -f "$log" ] && cat "$log"
+      [ -f "$log" ] && [ -s "$log" ] && cat "$log"
       warn "failed to start passt ($rc), falling back to slirp networking!"
       configureSlirp && return 0 || return 1
     fi
@@ -379,7 +386,7 @@ configurePasst() {
     tail -fn +0 "$log" --pid=$$ &
   else
     if [[ "$DEBUG" == [Yy1]* ]]; then
-      [ -f "$log" ] && cat "$log" && echo ""
+      [ -f "$log" ] && [ -s "$log" ] && cat "$log" && echo ""
     fi
   fi
 
@@ -391,6 +398,42 @@ configurePasst() {
   return 0
 }
 
+clearTables() {
+  local table="" line rules
+
+  # Choose between iptables or nftables
+  if command -v iptables-nft >/dev/null 2>&1 && iptables-nft -V >/dev/null 2>&1; then
+    update-alternatives --set iptables /usr/sbin/iptables-nft > /dev/null
+    update-alternatives --set ip6tables /usr/sbin/ip6tables-nft > /dev/null
+  else
+    update-alternatives --set iptables /usr/sbin/iptables-legacy > /dev/null
+    update-alternatives --set ip6tables /usr/sbin/ip6tables-legacy > /dev/null
+  fi
+
+  # Store the current iptables ruleset
+  ! rules=$(iptables-save 2> /dev/null) && return 0
+  [ -z "$rules" ] && return 0
+
+  # Delete every rule tagged with our unique identifier, leaving all other rules intact.
+  while IFS= read -r line; do
+    case "$line" in
+      \*nat)    table="nat" ;;
+      \*filter) table="filter" ;;
+      \*mangle) table="mangle" ;;
+      \*raw)    table="raw" ;;
+    esac
+    if [[ "$line" == -A* ]]; then
+      local re="--comment[[:space:]]+\"?remove\"?([[:space:]]|\$)"
+      if [[ "$line" =~ $re ]]; then
+        read -ra args <<< "${line/-A /-D }"
+        iptables -t "$table" "${args[@]}" &> /dev/null || :
+      fi
+    fi
+  done <<< "$rules"
+
+  return 0
+}
+
 configureNAT() {
 
   local tuntap="TUN device is missing. $ADD_ERR --device /dev/net/tun"
@@ -421,8 +464,9 @@ configureNAT() {
     fi
   fi
 
-  local ip base
+  local ip base gateway exclude
-  base=$(echo "$IP" | sed -r 's/([^.]*.){2}//')
+  base=$(cut -d. -f3,4 <<< "$IP")
+
   if [[ "$IP" != "172.30."* ]]; then
     ip="172.30.$base"
   else
@@ -431,13 +475,15 @@ configureNAT() {
 
   [ -n "$VM_NET_IP" ] && ip="$VM_NET_IP"
 
-  local gateway=""
   if [[ "$ip" != *".1" ]]; then
     gateway="${ip%.*}.1"
   else
     gateway="${ip%.*}.2"
   fi
 
+  local subnet="${ip%.*}.0/24"
+  local broadcast="${ip%.*}.255"
+
   # Create a bridge with a static IP for the VM guest
   { ip link add dev "$VM_NET_BRIDGE" type bridge ; rc=$?; } || :
 
@@ -446,7 +492,7 @@ configureNAT() {
     warn "failed to create bridge. $ADD_ERR --cap-add NET_ADMIN" && return 1
   fi
 
-  if ! ip address add "$gateway/24" broadcast "${ip%.*}.255" dev "$VM_NET_BRIDGE"; then
+  if ! ip address add "$gateway/24" broadcast "$broadcast" dev "$VM_NET_BRIDGE"; then
     warn "failed to add IP address pool!" && return 1
   fi
 
@@ -455,7 +501,7 @@ configureNAT() {
     sleep 2
   done
 
-  # QEMU Works with taps, set tap to the bridge created
+  # Set tap to the bridge created
   if ! ip tuntap add dev "$VM_NET_TAP" mode tap; then
     [[ "$ROOTLESS" == [Yy1]* && "$DEBUG" != [Yy1]* ]] && return 1
     warn "$tuntap" && return 1
@@ -468,7 +514,7 @@ configureNAT() {
   fi
 
   if ! ip link set dev "$VM_NET_TAP" address "$GATEWAY_MAC"; then
-    warn "failed to set gateway MAC address.."
+    warn "failed to set gateway MAC address."
   fi
 
   while ! ip link set "$VM_NET_TAP" up promisc on; do
@@ -480,13 +526,8 @@ configureNAT() {
     warn "failed to set master bridge!" && return 1
   fi
 
-  if grep -wq "nf_tables" /proc/modules; then
+  # Flush existing tables
-    update-alternatives --set iptables /usr/sbin/iptables-nft > /dev/null
+  clearTables
-    update-alternatives --set ip6tables /usr/sbin/ip6tables-nft > /dev/null
-  else
-    update-alternatives --set iptables /usr/sbin/iptables-legacy > /dev/null
-    update-alternatives --set ip6tables /usr/sbin/ip6tables-legacy > /dev/null
-  fi
 
   exclude=$(getHostPorts)
 
@@ -498,25 +539,36 @@ configureNAT() {
     fi
   fi
 
-  if ! iptables -t nat -A POSTROUTING -o "$VM_NET_DEV" -j MASQUERADE > /dev/null 2>&1; then
+  # NAT traffic from bridge subnet to Docker uplink
+  if ! iptables -t nat -A POSTROUTING -o "$VM_NET_DEV" -s "$subnet" ! -d "$subnet" -m comment --comment "remove" -j MASQUERADE > /dev/null 2>&1; then
     [[ "$ROOTLESS" == [Yy1]* && "$DEBUG" != [Yy1]* ]] && return 1
-    if ! iptables -t nat -A POSTROUTING -o "$VM_NET_DEV" -j MASQUERADE; then
+    if ! iptables -t nat -A POSTROUTING -o "$VM_NET_DEV" -s "$subnet" ! -d "$subnet" -m comment --comment "remove" -j MASQUERADE; then
       warn "$tables" && return 1
     fi
   fi
 
   # shellcheck disable=SC2086
-  if ! iptables -t nat -A PREROUTING -i "$VM_NET_DEV" -d "$IP" -p tcp${exclude} -j DNAT --to "$ip"; then
+  if ! iptables -t nat -A PREROUTING -i "$VM_NET_DEV" -d "$IP" -p tcp${exclude} -m comment --comment "remove" -j DNAT --to "$ip"; then
     warn "failed to configure IP tables!" && return 1
   fi
 
-  if ! iptables -t nat -A PREROUTING -i "$VM_NET_DEV" -d "$IP" -p udp -j DNAT --to "$ip"; then
+  if ! iptables -t nat -A PREROUTING -i "$VM_NET_DEV" -d "$IP" -p udp -m comment --comment "remove" -j DNAT --to "$ip"; then
     warn "failed to configure IP tables!" && return 1
   fi
 
   if (( KERNEL > 4 )); then
     # Hack for guest VMs complaining about "bad udp checksums in 5 packets"
-    iptables -A POSTROUTING -t mangle -p udp --dport bootpc -j CHECKSUM --checksum-fill > /dev/null 2>&1 || true
+    iptables -A POSTROUTING -t mangle -p udp --dport bootpc -m comment --comment "remove" -j CHECKSUM --checksum-fill > /dev/null 2>&1 || true
+  fi
+
+  # Allow forwarding from bridge -> dev
+  if ! iptables -A FORWARD -i "$VM_NET_BRIDGE" -o "$VM_NET_DEV" -m comment --comment "remove" -j ACCEPT; then
+    warn "failed to configure IP tables!" && return 1
+  fi
+
+  # Allow return traffic
+  if ! iptables -A FORWARD -i "$VM_NET_DEV" -o "$VM_NET_BRIDGE" -m conntrack --ctstate RELATED,ESTABLISHED -m comment --comment "remove" -j ACCEPT; then
+    warn "failed to configure IP tables!" && return 1
   fi
 
   NET_OPTS="-netdev tap,id=hostnet0,ifname=$VM_NET_TAP"
@@ -536,35 +588,23 @@ configureNAT() {
 
 closeBridge() {
 
-  [ -s "$PASST_PID" ] && pKill "$(<"$PASST_PID")"
+  local pids=( "$PASST_PID" "$DNSMASQ_PID" )
-  rm -f "$PASST_PID"
+  mKill "${pids[@]}"
 
-  [ -s "$DNSMASQ_PID" ] && pKill "$(<"$DNSMASQ_PID")"
+  ip link set "$VM_NET_TAP" down promisc off &> /dev/null || :
-  rm -f "$DNSMASQ_PID"
+  ip link delete "$VM_NET_TAP" &> /dev/null || :
 
-  case "${NETWORK,,}" in
+  ip link set "$VM_NET_BRIDGE" down &> /dev/null || :
-    "user"* | "passt" | "slirp" ) return 0 ;;
+  ip link delete "$VM_NET_BRIDGE" &> /dev/null || :
-  esac
-
-  ip link set "$VM_NET_TAP" down promisc off &> null || true
-  ip link delete "$VM_NET_TAP" &> null || true
-
-  ip link set "$VM_NET_BRIDGE" down &> null || true
-  ip link delete "$VM_NET_BRIDGE" &> null || true
 
+  clearTables
   return 0
 }
 
 closeWeb() {
 
-  # Shutdown nginx
+  local pids=( "$WEB_PID" "$WSD_PID" )
-  nginx -s stop 2> /dev/null
+  mKill "${pids[@]}"
-  fWait "nginx"
-
-  # Shutdown websocket
-  local pid="/var/run/websocketd.pid"
-  [ -s "$pid" ] && pKill "$(<"$pid")"
-  rm -f "$pid"
 
   return 0
 }
@@ -580,51 +620,41 @@ closeNetwork() {
   exec 30<&- || true
   exec 40<&- || true
 
-  if [[ "$DHCP" != [Yy1]* ]]; then
+  closeBridge
-
-    closeBridge
-    return 0
-
-  fi
-
-  ip link set "$VM_NET_TAP" down || true
-  ip link delete "$VM_NET_TAP" || true
 
   return 0
 }
 
 cleanUp() {
 
+  closeBridge
+
   # Clean up old files
   rm -f "$PASST_PID"
   rm -f "$DNSMASQ_PID"
   rm -f /etc/resolv.dnsmasq
 
-  if [[ -d "/sys/class/net/$VM_NET_TAP" ]]; then
-    info "Lingering interface will be removed..."
-    ip link delete "$VM_NET_TAP" || true
-  fi
-
   return 0
 }
 
 checkOS() {
 
-  local kernel
   local os=""
-  local if="macvlan"
+  local kernel=""
+  local iface="macvlan"
+
   kernel=$(uname -a)
 
   [[ "${kernel,,}" == *"darwin"* ]] && os="$ENGINE Desktop for macOS"
   [[ "${kernel,,}" == *"microsoft"* ]] && os="$ENGINE Desktop for Windows"
 
   if [[ "$DHCP" == [Yy1]* ]]; then
-    if="macvtap"
+    iface="macvtap"
     [[ "${kernel,,}" == *"synology"* ]] && os="Synology Container Manager"
   fi
 
   if [ -n "$os" ]; then
-    warn "you are using $os which does not support $if, please revert to bridge networking!"
+    warn "you are using $os which does not support $iface, please revert to bridge networking!"
   fi
 
   return 0
@@ -639,7 +669,7 @@ getInfo() {
     [ -d "/sys/class/net/net2" ] && VM_NET_DEV="net2"
     [ -d "/sys/class/net/net3" ] && VM_NET_DEV="net3"
     # Automatically detect the default network interface
-    [ -z "$VM_NET_DEV" ] && VM_NET_DEV=$(awk '$2 == 00000000 { print $1 }' /proc/net/route)
+    [ -z "$VM_NET_DEV" ] && VM_NET_DEV=$(awk '$2 == 00000000 { print $1; exit }' /proc/net/route)
     [ -z "$VM_NET_DEV" ] && VM_NET_DEV="eth0"
   fi
 
@@ -649,11 +679,8 @@ getInfo() {
   fi
 
   GATEWAY=$(ip route list dev "$VM_NET_DEV" | awk ' /^default/ {print $3}' | head -n 1)
-  { IP=$(ip address show dev "$VM_NET_DEV" | grep inet | awk '/inet / { print $2 }' | cut -f1 -d/ | head -n 1); rc=$?; } 2>/dev/null || :
+  { IP=$(ip address show dev "$VM_NET_DEV" | grep inet | awk '/inet / { print $2 }' | cut -f1 -d/ | head -n 1); } 2>/dev/null || :
-
+  [ -z "$IP" ] && [[ "$DHCP" != [Yy1]* ]] && error "Could not determine container IPv4 address!" && exit 26
-  if (( rc != 0 )); then
-    error "Could not determine container IP address!" && exit 26
-  fi
 
   IP6=""
   # shellcheck disable=SC2143
@@ -665,8 +692,8 @@ getInfo() {
 
   local result nic bus
   result=$(ethtool -i "$VM_NET_DEV")
-  nic=$(grep -m 1 -i 'driver:' <<< "$result" | awk '{print $(2)}')
+  nic=$(grep -m 1 -i 'driver:' <<< "$result" | awk '{print $2}')
-  bus=$(grep -m 1 -i 'bus-info:' <<< "$result" | awk '{print $(2)}')
+  bus=$(grep -m 1 -i 'bus-info:' <<< "$result" | awk '{print $2}')
 
   if [[ "${bus,,}" != "" && "${bus,,}" != "n/a" && "${bus,,}" != "tap" ]]; then
     [[ "$DEBUG" == [Yy1]* ]] && info "Detected BUS: $bus"
@@ -689,6 +716,20 @@ getInfo() {
       exit 29
     fi
 
+    if uname -a | grep -Eqi 'unraid|truenas'; then
+
+      # Check if host exposes the bridge-nf sysctl
+      # (only visible if br_netfilter is loaded and /proc/sys is accessible)
+  
+      BNF="/proc/sys/net/bridge/bridge-nf-call-iptables"
+  
+      if [[ -r "$BNF" ]] && [[ "$(cat "$BNF")" != "0" ]]; then
+        warn "external LAN clients may not be able to reach this container, because net.bridge.bridge-nf-call-iptables=1."
+        warn "you can fix this issue by running 'sysctl -w net.bridge.bridge-nf-call-iptables=0' on the host system."
+      fi
+  
+    fi
+
   else
 
     if [[ "$IP" != "172."* && "$IP" != "10.8"* && "$IP" != "10.9"* ]]; then
@@ -743,14 +784,14 @@ getInfo() {
     [[ "$MTU" != "0" && "$MTU" != "$mtu" ]] && line+=" ($MTU)"
     info "$line"
     if [ -f /etc/resolv.conf ]; then
-      nameservers=$(grep '^nameserver*' /etc/resolv.conf | head -c -1 | sed 's/nameserver //g;' | sed -z 's/\n/, /g')
+      nameservers=$(grep '^nameserver ' /etc/resolv.conf | sed 's/^nameserver //' | paste -sd ',' | sed 's/,/, /g')
       [ -n "$nameservers" ] && info "Nameservers: $nameservers"
     fi
     echo
   fi
 
-  echo "$IP" > /run/shm/qemu.ip
+  echo "$IP" > "$QEMU_DIR"/qemu.ip
-  echo "$nic" > /run/shm/qemu.nic
+  echo "$nic" > "$QEMU_DIR"//qemu.nic
 
   return 0
 }
@@ -792,7 +833,7 @@ else
 
   case "${NETWORK,,}" in
     "passt" | "slirp" | "user"* ) ;;
-    "tap" | "tun" | "tuntap" | "y" )
+    "tap" | "tun" | "tuntap" | "y" | "" )
 
       # Configure tap interface
       if ! configureNAT; then
@@ -811,7 +852,7 @@ else
   esac
 
   case "${NETWORK,,}" in
-    "tap" | "tun" | "tuntap" | "y" ) ;;
+    "tap" | "tun" | "tuntap" | "y" | "" ) ;;
     "passt" | "user"* )
 
       # Configure for user-mode networking (passt)

src/power.sh

@@ -1,144 +1,112 @@
 #!/usr/bin/env bash
 set -Eeuo pipefail
 
-: "${API_TIMEOUT:="50"}"   # API Call timeout
+: "${SHUTDOWN:="Y"}"        # Graceful ACPI shutdown
-: "${QEMU_TIMEOUT:="50"}"  # QEMU Termination timeout
+: "${TIMEOUT:="115"}"       # 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"
 
-QEMU_TERM=""
+# Configure QEMU for graceful shutdown
-QEMU_DIR="/run/shm"
+
-QEMU_PID="$QEMU_DIR/qemu.pid"
-QEMU_LOG="$QEMU_DIR/qemu.log"
-QEMU_OUT="$QEMU_DIR/qemu.out"
 QEMU_END="$QEMU_DIR/qemu.end"
 
-if [[ "$KVM" == [Nn]* ]]; then
-  API_TIMEOUT=$(( API_TIMEOUT*2 ))
-  QEMU_TIMEOUT=$(( QEMU_TIMEOUT*2 ))
-fi
-
-touch "$QEMU_LOG"
-
 _trap() {
-  func="$1" ; shift
+  local func="$1"; shift
-  for sig ; do
+  local sig
+  TRAP_PID=$BASHPID
+
+  for sig; do
     trap "$func $sig" "$sig"
   done
 }
 
+app() {
+  echo "$APP" && return 0
+}
+
 finish() {
 
-  local pid
+  local i=0
-  local cnt=0
+  local pid=""
   local reason=$1
+  local pids=( "${HOST_PID:-}" "${WSD_PID:-}" \
+               "${WEB_PID:-}" "${PASST_PID:-}" "${DNSMASQ_PID:-}" )
 
   touch "$QEMU_END"
 
   if [ -s "$QEMU_PID" ]; then
-
+    if read -r pid <"$QEMU_PID"; then
-    pid=$(<"$QEMU_PID")
+      if [ -n "$pid" ] && isAlive "$pid"; then
-    echo && error "Forcefully terminating Virtual DSM, reason: $reason..."
+        local display="$reason"
-    { kill -15 "$pid" || true; } 2>/dev/null
+        case "$reason" in
-
+          129 ) display="SIGHUP" ;;
-    while isAlive "$pid"; do
+          130 ) display="SIGINT" ;;
-
+          131 ) display="SIGQUIT" ;;
-      sleep 1
+          134 ) display="SIGABRT" ;;
-      cnt=$((cnt+1))
+          143 ) display="SIGTERM" ;;
-
+        esac
-      # Workaround for zombie pid
+        error "Forcefully terminating $(app), reason: $display..."
-      [ ! -s "$QEMU_PID" ] && break
+        { disown "$pid" || :; kill -9 -- "$pid" || :; } 2>/dev/null
-
-      if [ "$cnt" == "5" ]; then
-        echo && error "QEMU did not terminate itself, forcefully killing process..."
-        { kill -9 "$pid" || true; } 2>/dev/null
       fi
-
-    done
-
-  fi
-
-  fKill "print.sh"
-  fKill "host.bin"
-
-  closeNetwork
-
-  sleep 1
-  echo && echo "❯ Shutdown completed!"
-
-  exit "$reason"
-}
-
-terminal() {
-
-  local dev=""
-
-  if [ -s "$QEMU_OUT" ]; then
-
-    local msg
-    msg=$(<"$QEMU_OUT")
-
-    if [ -n "$msg" ]; then
-
-      if [[ "${msg,,}" != "char"* ||  "$msg" != *"serial0)" ]]; then
-        echo "$msg"
-      fi
-
-      dev="${msg#*/dev/p}"
-      dev="/dev/p${dev%% *}"
-
     fi
   fi
 
-  if [ ! -c "$dev" ]; then
+  mKill "${pids[@]}"
-    dev=$(echo 'info chardev' | nc -q 1 -w 1 localhost "$MON_PORT" | tr -d '\000')
+  fKill "print.sh"
-    dev="${dev#*serial0}"
+
-    dev="${dev#*pty:}"
+  closeNetwork
-    dev="${dev%%$'\n'*}"
+
-    dev="${dev%%$'\r'*}"
+  if ! waitPidFile "$QEMU_PID" 10; then
+    warn "Timed out while waiting for $(app) to exit!"
   fi
 
-  if [ ! -c "$dev" ]; then
+  (( reason != 1 )) && echo && echo "❯ Shutdown completed!"
-    error "Device '$dev' not found!"
+  exit "$reason"
-    finish 34 && return 34
-  fi
-
-  QEMU_TERM="$dev"
-  return 0
 }
 
-_graceful_shutdown() {
+graceful_shutdown() {
 
-  local code=$?
+  local sig="$1"
-  local pid url response
+  local pid=""
+  local code=0
+  local start url response elapsed
 
-  set +e
+  [[ $BASHPID != "$TRAP_PID" ]] && return
+
+  case "$sig" in
+    SIGHUP)  code=129 ;;
+    SIGINT)  code=130 ;;
+    SIGQUIT) code=131 ;;
+    SIGABRT) code=134 ;;
+    SIGTERM) code=143 ;;
+  esac
 
   if [ -f "$QEMU_END" ]; then
     echo && info "Received $1 signal while already shutting down..."
     return
   fi
 
+  set +e
+  start=$SECONDS
   touch "$QEMU_END"
   echo && info "Received $1 signal, sending shutdown command..."
 
-  if [ ! -s "$QEMU_PID" ]; then
+  if [ ! -s "$QEMU_PID" ] || ! read -r pid <"$QEMU_PID"; then
-    echo && error "QEMU PID file does not exist?"
+    warn "QEMU PID file ($QEMU_PID) does not exist?"
-    finish "$code" && return "$code"
+    finish "$code"
   fi
 
-  pid=$(<"$QEMU_PID")
+  if [ -z "$pid" ] || ! isAlive "$pid"; then
-
+    warn "QEMU process with PID $pid does not exist?"
-  if ! isAlive "$pid"; then
+    finish "$code"
-    echo && error "QEMU process does not exist?"
-    finish "$code" && return "$code"
   fi
 
   # Don't send the powerdown signal because vDSM ignores ACPI signals
-  # echo 'system_powerdown' | nc -q 1 -w 1 localhost "$MON_PORT" > /dev/null
+  # nc -q 1 -w 1 -U "$QEMU_DIR/monitor.sock" &> /dev/null <<<'system_powerdown' || :
 
   # Send shutdown command to guest agent via serial port
   url="http://$API_HOST/read?command=$API_CMD&timeout=$API_TIMEOUT"
@@ -153,44 +121,52 @@ _graceful_shutdown() {
     response="${response#*message\"\: \"}"
     [ -z "$response" ] && response="second signal"
     echo && error "Forcefully terminating because of: ${response%%\"*}"
-    { kill -15 "$pid" || true; } 2>/dev/null
+    { kill -15 -- "$pid" || :; } 2>/dev/null
 
   fi
 
-  local cnt=0
+  local cnt=0 abort=0 factor=3 offset=3 min max name
 
-  while [ "$cnt" -lt "$QEMU_TIMEOUT" ]; do
+  [[ "$TIMEOUT" =~ ^[0-9]+$ ]] || TIMEOUT=115
+  [ "$TIMEOUT" -ge 15 ] && factor=4 && offset=4
+  [ "$TIMEOUT" -ge 30 ] && factor=5 && offset=5
+  min=$(( factor + offset + 1 ))
+  [ "$TIMEOUT" -lt "$min" ] && TIMEOUT="$min"
+  elapsed=$(( SECONDS - start ))
+  max=$(( TIMEOUT - offset - elapsed ))
+  [ "$max" -lt "$factor" ] && max=$(( factor + 1 ))
+  abort=$(( max - factor ))
+  name="$(app)"
+
+  while [ "$cnt" -le "$max" ]; do
+
+    sleep 1 &
+    local slp=$!
 
     ! isAlive "$pid" && break
-
-    sleep 1
-    cnt=$((cnt+1))
-
-    [[ "$DEBUG" == [Yy1]* ]] && info "Shutting down, waiting... ($cnt/$QEMU_TIMEOUT)"
-
     # Workaround for zombie pid
     [ ! -s "$QEMU_PID" ] && break
 
+    if [ "$cnt" -ne "$abort" ]; then
+      if [ "$cnt" -gt 0 ] && [[ "$DEBUG" == [Yy1]* ]]; then
+        info "Waiting for $name to shut down... ($cnt/$max)"
+      fi
+    else
+      info "${name^} is still running, sending SIGTERM... ($cnt/$max)"
+      { kill -15 -- "$pid" || :; } 2>/dev/null
+    fi
+
+    wait $slp
+    (( cnt++ ))
+
   done
 
-  if [ "$cnt" -ge "$QEMU_TIMEOUT" ]; then
+  finish "$code"
-    echo && error "Shutdown timeout reached, aborting..."
-  fi
-
-  finish "$code" && return "$code"
 }
 
-MON_OPTS="\
+[[ "$SHUTDOWN" != [Yy1]* ]] && return 0
-        -pidfile $QEMU_PID \
+[ -n "${QEMU_TIMEOUT:-}" ] && TIMEOUT="$QEMU_TIMEOUT"
-        -name $PROCESS,process=$PROCESS,debug-threads=on \
-        -monitor telnet:localhost:$MON_PORT,server,nowait,nodelay"
 
-if [[ "$CONSOLE" != [Yy]* ]]; then
+_trap graceful_shutdown SIGTERM SIGHUP SIGABRT SIGQUIT
-
-  MON_OPTS+=" -daemonize -D $QEMU_LOG"
-
-  _trap _graceful_shutdown SIGTERM SIGHUP SIGINT SIGABRT SIGQUIT
-
-fi
 
 return 0

src/proc.sh

@@ -12,7 +12,7 @@ CLOCKSOURCE="tsc"
 CLOCK="/sys/devices/system/clocksource/clocksource0/current_clocksource"
 
 if [ ! -f "$CLOCK" ]; then
-  warn "file \"$CLOCK\" cannot not found?"
+  warn "file \"$CLOCK\" cannot be found?"
 else
   result=$(<"$CLOCK")
   result="${result//[![:print:]]/}"

src/reset.sh

@@ -13,7 +13,6 @@ trap 'error "Status $? while: $BASH_COMMAND (line $LINENO/$BASH_LINENO)"' ERR
 : "${KVM:="Y"}"            # KVM acceleration
 : "${DEBUG:="N"}"          # Disable debugging mode
 : "${COUNTRY:=""}"         # Country code for mirror
-: "${CONSOLE:="N"}"        # Disable console mode
 : "${ALLOCATE:=""}"        # Preallocate diskspace
 : "${ARGUMENTS:=""}"       # Extra QEMU parameters
 : "${CPU_CORES:="2"}"      # Amount of CPU cores
@@ -40,7 +39,7 @@ if [ -f "/run/.containerenv" ]; then
   fi
 fi
 
-echo "❯ Starting $APP for $ENGINE v$(</run/version)..."
+echo "❯ Starting $APP for $ENGINE v$(</etc/version)..."
 echo "❯ For support visit $SUPPORT"
 
 # Get the capability bounding set
@@ -61,9 +60,10 @@ fi
 INFO="/run/shm/msg.html"
 PAGE="/run/shm/index.html"
 TEMPLATE="/var/www/index.html"
-FOOTER1="$APP for $ENGINE v$(</run/version)"
+FOOTER1="$APP for $ENGINE v$(</etc/version)"
 FOOTER2="<a href='$SUPPORT'>$SUPPORT</a>"
 
+SOCKETS=1
 CPU=$(cpu)
 SYS=$(uname -r)
 HOST=$(hostname -s)
@@ -72,31 +72,36 @@ MINOR=$(echo "$SYS" | cut -d '.' -f2)
 ARCH=$(dpkg --print-architecture)
 CORES=$(grep -c '^processor' /proc/cpuinfo)
 
-if ! grep -qi "socket(s)" <<< "$(lscpu)"; then
+if grep -qi "socket(s)" <<< "$(lscpu)"; then
-  SOCKETS=1
+  SOCKETS=$(lscpu | grep -m 1 -i 'socket(s)' | awk '{print $2}')
-else
+  [ -z "${SOCKETS##*[!0-9]*}" ] && SOCKETS=1
-  SOCKETS=$(lscpu | grep -m 1 -i 'socket(s)' | awk '{print $(2)}')
+  [ "$SOCKETS" -lt "1" ] && SOCKETS=1
 fi
 
 CPU_CORES="${CPU_CORES// /}"
+[ -z "$CPU_CORES" ] && CPU_CORES=2
 [[ "${CPU_CORES,,}" == "max" ]] && CPU_CORES="$CORES"
 [[ "${CPU_CORES,,}" == "half" ]] && CPU_CORES=$(( CORES / 2 ))
-[[ "${CPU_CORES,,}" == "0" ]] && CPU_CORES="1"
+[ -z "${CPU_CORES##*[!0-9]*}" ] && error "Invalid amount of CPU_CORES: $CPU_CORES" && exit 15
-[ -n "${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, so will be limited to ${CORES}."
+  warn "The amount for CPU_CORES (${CPU_CORES}) exceeds the amount of logical cores available (${CORES}) and will be limited."
   CPU_CORES="$CORES"
 fi
 
 # Check system
 
+QEMU_DIR="/run/shm"
+
 if [ ! -d "/dev/shm" ]; then
   error "Directory /dev/shm not found!" && exit 14
 else
-  [ ! -d "/run/shm" ] && ln -s /dev/shm /run/shm
+  [ ! -d "$QEMU_DIR" ] && ln -s /dev/shm "$QEMU_DIR"
 fi
 
+QEMU_PID="$QEMU_DIR/qemu.pid"
+
 # Check folder
 
 if [[ "${STORAGE,,}" != "/storage" ]]; then
@@ -122,12 +127,13 @@ if [[ "${FS,,}" == "ecryptfs" || "${FS,,}" == "tmpfs" ]]; then
 fi
 
 # Read memory
-RAM_SPARE=500000000
 RAM_AVAIL=$(free -b | grep -m 1 Mem: | awk '{print $7}')
 RAM_TOTAL=$(free -b | grep -m 1 Mem: | awk '{print $2}')
 
+RAM_SPARE=500000000
+RAM_MINIMUM=136314880
 RAM_SIZE="${RAM_SIZE// /}"
-[ -z "$RAM_SIZE" ] && error "RAM_SIZE not specified!" && exit 16
+[ -z "$RAM_SIZE" ] && RAM_SIZE="2G"
 
 if [[ "${RAM_SIZE,,}" != "max" && "${RAM_SIZE,,}" != "half" ]]; then
 
@@ -137,8 +143,8 @@ if [[ "${RAM_SIZE,,}" != "max" && "${RAM_SIZE,,}" != "half" ]]; then
 
   RAM_SIZE=$(echo "${RAM_SIZE^^}" | sed 's/MB/M/g;s/GB/G/g;s/TB/T/g')
   ! numfmt --from=iec "$RAM_SIZE" &>/dev/null && error "Invalid RAM_SIZE: $RAM_SIZE" && exit 16
-  RAM_WANTED=$(numfmt --from=iec "$RAM_SIZE")
+  wanted=$(numfmt --from=iec "$RAM_SIZE")
-  [ "$RAM_WANTED" -lt "136314880 " ] && error "RAM_SIZE is too low: $RAM_SIZE" && exit 16
+  [ "$wanted" -lt "$RAM_MINIMUM" ] && error "RAM_SIZE is too low: $RAM_SIZE" && exit 16
 
 fi
 
@@ -217,8 +223,9 @@ if [[ "$KVM" != [Nn]* ]]; then
 fi
 
 # Cleanup files
-rm -f /run/shm/qemu.*
+rm -f "$QEMU_DIR"/qemu.*
-rm -f /run/shm/dsm.url
+rm -f "$QEMU_DIR"/*.pid
+rm -f "$QEMU_DIR"/dsm.url
 
 # Cleanup dirs
 rm -rf /tmp/dsm

src/serial.sh

@@ -24,6 +24,8 @@ if [ -n "$HOST_MAC" ]; then
 
 fi
 
+HOST_PID="$QEMU_DIR/host.pid"
+
 HOST_ARGS=()
 HOST_ARGS+=("-cpu=$CPU_CORES")
 HOST_ARGS+=("-cpu_arch=$HOST_CPU")
@@ -37,9 +39,11 @@ if [[ "$HOST_DEBUG" == [Yy1]* ]]; then
   set -x
   ./host.bin "${HOST_ARGS[@]}" &
   { set +x; } 2>/dev/null
+  echo "$!" > "$HOST_PID"
   echo
 else
   ./host.bin "${HOST_ARGS[@]}" >/dev/null &
+  echo "$!" > "$HOST_PID"
 fi
 
 cnt=0
@@ -60,14 +64,7 @@ while ! nc -z -w2 127.0.0.1 "$CHR_PORT" > /dev/null 2>&1; do
 done
 
 # Configure serial ports
-
+SERIAL_OPTS="-serial mon:stdio \
-if [[ "$CONSOLE" != [Yy]* ]]; then
-  SERIAL_OPTS="-serial pty"
-else
-  SERIAL_OPTS="-serial mon:stdio"
-fi
-
-SERIAL_OPTS+=" \
         -device virtio-serial-pci,id=virtio-serial0,bus=pcie.0,addr=0x3 \
         -chardev socket,id=charchannel0,host=127.0.0.1,port=$CHR_PORT,reconnect=10 \
         -device virtserialport,bus=virtio-serial0.0,nr=1,chardev=charchannel0,id=channel0,name=vchannel"

src/server.sh

@@ -2,13 +2,16 @@
 set -Eeuo pipefail
 
 : "${COM_PORT:="2210"}"    # Comm port
-: "${MON_PORT:="7100"}"    # Monitor port
 : "${WEB_PORT:="5000"}"    # Webserver port
 : "${CHR_PORT:="12345"}"   # Character port
 : "${WSD_PORT:="8004"}"    # Websockets port
 
-cp -r /var/www/* /run/shm
+WEB_PID="/run/nginx.pid"
-rm -f /var/run/websocketd.pid
+WSD_PID="$QEMU_DIR/websocketd.pid"
+
+cp -r /var/www/* "$QEMU_DIR"
+rm -f "$WSD_PID"
+rm -f "$WEB_PID"
 
 html "Starting $APP for $ENGINE..."
 
@@ -32,7 +35,7 @@ if [[ "${WEB:-}" != [Nn]* ]]; then
 
   # Start websocket server
   websocketd --address 127.0.0.1 --port="$WSD_PORT" /run/socket.sh >/var/log/websocketd.log &
-  echo "$!" > /var/run/websocketd.pid
+  echo "$!" > "$WSD_PID"
 
 fi
 

src/utils.sh

@@ -28,6 +28,7 @@ formatBytes() {
 
 isAlive() {
   local pid="$1"
+  [ -z "$pid" ] && return 1
 
   if kill -0 "$pid" 2>/dev/null; then
     return 0
@@ -36,23 +37,67 @@ isAlive() {
   return 1
 }
 
-pKill() {
+waitPid() {
+  local i=0
   local pid="$1"
+  local timeout="${2:-10}"
 
-  { kill -15 "$pid" || true; } 2>/dev/null
+  while [ -n "$pid" ] && isAlive "$pid"; do
-
-  while isAlive "$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
@@ -60,9 +105,44 @@ fWait() {
 
 fKill() {
   local name="$1"
+  local timeout="${2:-10}"
 
-  { pkill -f "$name" || true; } 2>/dev/null
+  [ -z "$name" ] && return 0
-  fWait "$name"
+
+  { pkill -f "$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
 }
@@ -178,6 +258,8 @@ cpu() {
 
 hasDisk() {
 
+  [[ "${DISK_DISABLE:-}" == [Yy1]* ]] && return 1
+
   [ -b "/disk" ] && return 0
   [ -b "/disk1" ] && return 0
   [ -b "/dev/disk1" ] && return 0

web/js/script.js

@@ -7,10 +7,14 @@ function getInfo() {
     var url = "msg.html";
 
     try {
+        if (request) {
+            request.abort();
+        }
+
         if (window.XMLHttpRequest) {
             request = new XMLHttpRequest();
         } else {
-            throw "XMLHttpRequest not available!";
+            throw new Error("XMLHttpRequest not available!");
         }
 
         request.onreadystatechange = processInfo;