mirror of
https://git.hardenedbsd.org/hardenedbsd/HardenedBSD.git
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137 lines
3.5 KiB
Bash
Executable File
137 lines
3.5 KiB
Bash
Executable File
#!/bin/sh
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#
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# $FreeBSD$
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#
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# Print newline-separated list of devices available for mounting.
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# If there is a filesystem label - use it, otherwise use device name.
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print_available() {
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local _fstype _fstype_and_label _label _p
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for _p in ${providers}; do
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_fstype_and_label="$(fstyp -l "/dev/${_p}" 2> /dev/null)"
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if [ $? -ne 0 ]; then
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# Ignore devices for which we were unable
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# to determine filesystem type.
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continue
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fi
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_fstype="${_fstype_and_label%% *}"
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if [ "${_fstype}" != "${_fstype_and_label}" ]; then
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_label="${_fstype_and_label#* }"
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# Replace plus signs and slashes with minuses;
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# leading plus signs have special meaning in maps,
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# and multi-component keys are just not supported.
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_label="$(echo ${_label} | sed 's,[+/],-,g')"
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echo "${_label}"
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continue
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fi
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echo "${_p}"
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done
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}
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# Print a single map entry.
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print_map_entry() {
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local _fstype _p
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_fstype="$1"
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_p="$2"
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case "${_fstype}" in
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"exfat")
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if [ -f "/usr/local/sbin/mount.exfat" ]; then
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echo "-mountprog=/usr/local/sbin/mount.exfat,fstype=${_fstype},nosuid :/dev/${_p}"
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else
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/usr/bin/logger -p info -t "special_media[$$]" \
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"Cannot mount ${_fstype} formatted device /dev/${_p}: Install sysutils/fusefs-exfat first"
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exit 1
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fi
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;;
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"ntfs")
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if [ -f "/usr/local/bin/ntfs-3g" ]; then
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echo "-mountprog=/usr/local/bin/ntfs-3g,fstype=${_fstype},nosuid :/dev/${_p}"
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else
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/usr/bin/logger -p info -t "special_media[$$]" \
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"Cannot mount ${_fstype} formatted device /dev/${_p}: Install sysutils/fusefs-ntfs first"
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exit 1
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fi
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;;
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"ext2fs" | "msdosfs")
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echo "-fstype=${_fstype},nosuid,async :/dev/${_p}"
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;;
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*)
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echo "-fstype=${_fstype},nosuid :/dev/${_p}"
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;;
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esac
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}
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# Determine map entry contents for the given key and print out the entry.
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print_one() {
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local _fstype _fstype_and_label _label _key _p
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_key="$1"
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_fstype="$(fstyp "/dev/${_key}" 2> /dev/null)"
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if [ $? -eq 0 ]; then
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print_map_entry "${_fstype}" "${_key}"
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return
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fi
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for _p in ${providers}; do
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_fstype_and_label="$(fstyp -l "/dev/${_p}" 2> /dev/null)"
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if [ $? -ne 0 ]; then
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# Ignore devices for which we were unable
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# to determine filesystem type.
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continue
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fi
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_fstype="${_fstype_and_label%% *}"
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if [ "${_fstype}" = "${_fstype_and_label}" ]; then
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# No label, try another device.
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continue
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fi
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_label="${_fstype_and_label#* }"
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# Replace plus signs and slashes with minuses;
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# leading plus signs have special meaning in maps,
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# and multi-component keys are just not supported.
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_label="$(echo ${_label} | sed 's,[+/],-,g')"
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if [ "${_label}" != "${_key}" ]; then
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# Labels don't match, try another device.
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continue
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fi
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print_map_entry "${_fstype}" "${_p}"
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done
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# No matching device - don't print anything, autofs will handle it.
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}
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# Obtain a list of (geom-provider-name, access-count) pairs, turning this:
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#
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# z0xfffff80005085d00 [shape=hexagon,label="ada0\nr2w2e3\nerr#0\nsector=512\nstripe=0"];
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#
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# Into this:
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#
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# ada0 r2w2e3
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#
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# XXX: It would be easier to use kern.geom.conftxt instead, but it lacks
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# access counts.
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pairs=$(sysctl kern.geom.confdot | sed -n 's/^.*hexagon,label="\([^\]*\)\\n\([^\]*\).*/\1 \2/p')
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# Obtain a list of GEOM providers that are not already open - not mounted,
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# and without other GEOM class, such as gpart, attached. In other words,
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# grep for "r0w0e0". Skip providers with names containing slashes; we're
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# not interested in geom_label(4) creations.
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providers=$(echo "$pairs" | awk '$2 == "r0w0e0" && $1 !~ /\// { print $1 }')
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if [ $# -eq 0 ]; then
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print_available
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exit 0
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fi
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print_one "$1"
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exit 0
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