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special_media revision 1.1 
      1 #!/bin/sh
      2 #
      3 # $NetBSD: special_media,v 1.1 2018/01/09 03:31:14 christos Exp $
      4 #
      5 
      6 # Print newline-separated list of devices available for mounting.
      7 # If there is a filesystem label - use it, otherwise use device name.
      8 print_available() {
      9 	local _fstype _fstype_and_label _label _p
     10 
     11 	for _p in ${DEVICES}; do
     12 		_fstype_and_label="$(fstyp -l "/dev/${_p}" 2> /dev/null)"
     13 		if [ $? -ne 0 ]; then
     14 			# Ignore devices for which we were unable
     15 			# to determine filesystem type.
     16 			continue
     17 		fi
     18 
     19 		_fstype="${_fstype_and_label%% *}"
     20 		if [ "${_fstype}" != "${_fstype_and_label}" ]; then
     21 			_label="${_fstype_and_label#* }"
     22 			# Replace plus signs and slashes with minuses;
     23 			# leading plus signs have special meaning in maps,
     24 			# and multi-component keys are just not supported.
     25 			_label="$(echo ${_label} | sed 's,[+/],-,g')"
     26 			echo "${_label}"
     27 			continue
     28 		fi
     29 
     30 		echo "${_p}"
     31 	done
     32 }
     33 
     34 # Print a single map entry.
     35 print_map_entry() {
     36 	local _fstype _p
     37 
     38 	_fstype="$1"
     39 	_p="$2"
     40 
     41 	case "${_fstype}" in
     42 	"exfat")
     43 		if [ -f "/usr/local/sbin/mount.exfat" ]; then
     44 			echo "-mountprog=/usr/local/sbin/mount.exfat,fstype=${_fstype},nosuid	:/dev/${_p}"
     45 		else
     46 			/usr/bin/logger -p info -t "special_media[$$]" \
     47 			    "Cannot mount ${_fstype} formatted device /dev/${_p}: Install sysutils/fusefs-exfat first"
     48 			exit 1
     49 		fi
     50 		;;
     51 	"ntfs")
     52 		if [ -f "/usr/local/bin/ntfs-3g" ]; then
     53 			echo "-mountprog=/usr/local/bin/ntfs-3g,fstype=${_fstype},nosuid	:/dev/${_p}"
     54 		else
     55 			/usr/bin/logger -p info -t "special_media[$$]" \
     56 			    "Cannot mount ${_fstype} formatted device /dev/${_p}: Install sysutils/fusefs-ntfs first"
     57 			exit 1
     58 		fi
     59 		;;
     60 	"ext2fs" | "msdosfs")
     61 		echo "-fstype=${_fstype},nosuid,async	:/dev/${_p}"
     62 		;;
     63 	*)
     64 		echo "-fstype=${_fstype},nosuid	:/dev/${_p}"
     65 		;;
     66 	esac
     67 }
     68 
     69 # Determine map entry contents for the given key and print out the entry.
     70 print_one() {
     71 	local _fstype _fstype_and_label _label _key _p
     72 
     73 	_key="$1"
     74 
     75 	_fstype="$(fstyp "/dev/${_key}" 2> /dev/null)"
     76 	if [ $? -eq 0 ]; then
     77 		print_map_entry "${_fstype}" "${_key}"
     78 		return
     79 	fi
     80 
     81 	for _p in ${DEVICES}; do
     82 		_fstype_and_label="$(fstyp -l "/dev/${_p}" 2> /dev/null)"
     83 		if [ $? -ne 0 ]; then
     84 			# Ignore devices for which we were unable
     85 			# to determine filesystem type.
     86 			continue
     87 		fi
     88 
     89 		_fstype="${_fstype_and_label%% *}"
     90 		if [ "${_fstype}" = "${_fstype_and_label}" ]; then
     91 			# No label, try another device.
     92 			continue
     93 		fi
     94 
     95 		_label="${_fstype_and_label#* }"
     96 		# Replace plus signs and slashes with minuses;
     97 		# leading plus signs have special meaning in maps,
     98 		# and multi-component keys are just not supported.
     99 		_label="$(echo ${_label} | sed 's,[+/],-,g')"
    100 		if [ "${_label}" != "${_key}" ]; then
    101 			# Labels don't match, try another device.
    102 			continue
    103 		fi
    104 
    105 		print_map_entry "${_fstype}" "${_p}"
    106 	done
    107 
    108 	# No matching device - don't print anything, autofs will handle it.
    109 }
    110 
    111 # XXX: -media map is unusable at the moment.
    112 # This script needs to be able to get the list of devices/partitions. FreeBSD can do this via GEOM sysctl.
    113 #HW_DISKNAMES=$(sysctl hw.disknames)
    114 #if [ $? -ne 0 ]; then
    115 #	exit 1
    116 #fi
    117 # Cut "hw.disknames =" and ignore the next " " before names start.
    118 #DEVICES=$(echo ${HW_DISKNAMES} | awk '{$1=$2=""; print substr($0,3)}' | awk '{gsub(" ", "\n"); print}' | sort)
    119 
    120 # ${DEVICES} should contain one device/partition for each line.
    121 DEVICES=""
    122 
    123 if [ $# -eq 0 ]; then
    124 	print_available
    125 	exit 0
    126 fi
    127 
    128 print_one "$1"
    129 exit 0
    130 
    131