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autodev.sh

@@ -0,0 +1,74 @@
+#!/usr/bin/env bash
+
+# Setup script environment
+set -o errexit  #Exit immediately if a pipeline returns a non-zero status
+set -o errtrace #Trap ERR from shell functions, command substitutions, and commands from subshell
+set -o nounset  #Treat unset variables as an error
+set -o pipefail #Pipe will exit with last non-zero status if applicable
+shopt -s expand_aliases
+alias die='EXIT=$? LINE=$LINENO error_exit'
+trap die ERR
+trap cleanup EXIT
+
+function error_exit() {
+  trap - ERR
+  local DEFAULT='Unknown failure occured.'
+  local REASON="\e[97m${1:-$DEFAULT}\e[39m"
+  local FLAG="\e[91m[ERROR] \e[93m$EXIT@$LINE"
+  msg "$FLAG $REASON"
+  exit $EXIT
+}
+function msg() {
+  local TEXT="$1"
+  echo -e "$TEXT"
+}
+function cleanup() {
+  popd >/dev/null
+  rm -rf $TEMP_DIR
+}
+TEMP_DIR=$(mktemp -d)
+pushd $TEMP_DIR >/dev/null
+
+# Array of device types to enable in container
+#CHAR_DEVS+=(major:minor)
+CHAR_DEVS+=("1:1") #mem (physical memory access)
+CHAR_DEVS+=("4:\([3-9]\|[1-5][0-9]\|6[0-3]\)") #tty* (virtual console, minor 3-63)
+CHAR_DEVS+=("4:\(6[4-9]\|[7-9][0-9]\|1[0-9][0-9]\|2[0-4][0-9]\|25[0-5]\)") #ttyS* (UART serial port, minor 64-255)
+CHAR_DEVS+=("10:200") #net/tun (TAP/TUN network device)
+CHAR_DEVS+=("116:.*") #(ALSA devices)
+CHAR_DEVS+=("166:.*") #ttyACM* (ACM USB modems)
+CHAR_DEVS+=("180:\([0-9]\|1[0-5]\)") #usb/hiddev* (UPS devices, minor 0-15)
+CHAR_DEVS+=("188:.*") #ttyUSB* (USB serial converters)
+CHAR_DEVS+=("189:.*") #bus/usb/* (USB serial converters - alternate devices)
+
+# Proccess char device string
+for char_dev in ${CHAR_DEVS[@]}; do
+  [ ! -z "${CHAR_DEV_STRING-}" ] && CHAR_DEV_STRING+=" -o"
+  CHAR_DEV_STRING+=" -regex \".*/${char_dev}\""
+done
+
+# Store autodev hook script in variable
+read -r -d '' HOOK_SCRIPT <<- EOF || true
+for char_dev in \$(find /sys/dev/char -regextype sed $CHAR_DEV_STRING); do
+  dev="/dev/\$(sed -n "/DEVNAME/ s/^.*=\(.*\)$/\1/p" \${char_dev}/uevent)";
+  mkdir -p \$(dirname \${LXC_ROOTFS_MOUNT}\${dev});
+  for link in \$(udevadm info --query=property \$dev | sed -n "s/DEVLINKS=//p"); do
+    mkdir -p \${LXC_ROOTFS_MOUNT}\$(dirname \$link);
+    cp -dpR \$link \${LXC_ROOTFS_MOUNT}\${link};
+  done;
+  cp -dpR \$dev \${LXC_ROOTFS_MOUNT}\${dev};
+done;
+EOF
+HOOK_SCRIPT=${HOOK_SCRIPT//$'\n'/} #Remove newline char from variable
+
+# Remove autodev settings
+CTID=$1
+CTID_CONFIG_PATH=/etc/pve/lxc/${CTID}.conf
+sed '/autodev/d' $CTID_CONFIG_PATH >CTID.conf
+cat CTID.conf >$CTID_CONFIG_PATH
+
+# Add autodev settings
+cat <<EOF >> $CTID_CONFIG_PATH
+lxc.autodev: 1
+lxc.hook.autodev: bash -c '$HOOK_SCRIPT'
+EOF