archive/fuse/rc.fuse

   1 #! /bin/sh -
   2 #
   3 # Load the fuse module (if exists) and mount the fuse control file system
   4 #
   5 # Copyright (c) 2019-2020 Matias Fonzo, <selk@dragora.org>.
   6 #
   7 # Licensed under the Apache License, Version 2.0 (the "License");
   8 # you may not use this file except in compliance with the License.
   9 # You may obtain a copy of the License at
  10 #
  11 #    http://www.apache.org/licenses/LICENSE-2.0
  12 #
  13 # Unless required by applicable law or agreed to in writing, software
  14 # distributed under the License is distributed on an "AS IS" BASIS,
  15 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  16 # See the License for the specific language governing permissions and
  17 # limitations under the License.
  18
  19 PROGRAM="${0##*/}"
  20
  21 # Sanity check
  22 if ! command -v fusermount > /dev/null
  23 then
  24     echo "${0}: Error: fusermount(1) is not available." 1>&2
  25     exit 127;
  26 fi
  27
  28 # Main functions
  29
  30 fuse_start()
  31 {
  32     if modinfo fuse > /dev/null 2>&1
  33     then
  34         echo "${PROGRAM}: Loading fuse (kernel) module ..."
  35         modprobe fuse
  36     fi
  37
  38     if ! mountpoint -q /sys/fs/fuse/connections
  39     then
  40         echo "${PROGRAM}: Mounting fusectl filesystem ..."
  41         mount -v -t fusectl fusectl /sys/fs/fuse/connections
  42     else
  43         echo "${PROGRAM}: FUSE filesystem already mounted at /sys/fs/fuse/connections" 1>&2
  44     fi
  45 }
  46
  47 fuse_stop()
  48 {
  49     if mountpoint -q /sys/fs/fuse/connections
  50     then
  51         echo "${PROGRAM}: Unmounting FUSE filesystem ..."
  52         umount -v /sys/fs/fuse/connections
  53     else
  54         echo "${PROGRAM}: FUSE filesystem not mounted." 1>&2
  55     fi
  56
  57     if grep -q -w ^fuse /proc/modules
  58     then
  59         echo "${PROGRAM}: Unloading fuse (kernel) module ..."
  60         rmmod fuse
  61     fi
  62 }
  63
  64 # Command line arguments
  65
  66 case $1 in
  67 start)
  68     fuse_start
  69     ;;
  70 stop)
  71     fuse_stop
  72     ;;
  73 restart)
  74     fuse_stop
  75     fuse_start
  76     ;;
  77 *)
  78     echo "Usage: $0 (start|stop|restart)" 1>&2
  79     exit 1
  80     ;;
  81 esac
  82