9ecd54f24f
different things from this commit:
+ More devices. Devices that were previously ignored are now present.
+ Faster device scanning. "There is no try, only Do" -- f_device_try()
is no longer the basis of device scanning as GEOM provides [nearly]
all devices (doesn't provide network devices).
+ More information available as non-root. Usually you have to be root
to do things like taste filesystems, and that limits the amount of
information available to non-root users; with GEOM, we see all even
running unprivileged as the brunt of information (except for so-
called ``dangerously dedicated'' file systems) is represented by the
`kern.geom.confxml' sysctl(8) MIB.
NB: Only really useful for external scripts that use the API and run as
non-root; where this code is used in bsdconfig(8) and bsdinstall(8)
you are running as root so can detect even ``dangerously dedicated''
file systems that are not present in GEOM; e.g., no PART class for
a DOS filesystem written directly to disk without partition table).
+ No more use of legacy tools such as diskinfo(8) to get disk capacity
or fdisk(8) to see partitions.
MFC after: 1 week
152 lines
4.7 KiB
Plaintext
152 lines
4.7 KiB
Plaintext
if [ ! "$_MEDIA_DIRECTORY_SUBR" ]; then _MEDIA_DIRECTORY_SUBR=1
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#
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# Copyright (c) 2012-2013 Devin Teske
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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# 1. Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# 2. Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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#
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# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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# SUCH DAMAGE.
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#
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# $FreeBSD$
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#
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############################################################ INCLUDES
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BSDCFG_SHARE="/usr/share/bsdconfig"
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. $BSDCFG_SHARE/common.subr || exit 1
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f_dprintf "%s: loading includes..." media/directory.subr
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f_include $BSDCFG_SHARE/device.subr
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f_include $BSDCFG_SHARE/dialog.subr
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f_include $BSDCFG_SHARE/media/common.subr
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f_include $BSDCFG_SHARE/struct.subr
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f_include $BSDCFG_SHARE/variable.subr
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BSDCFG_LIBE="/usr/libexec/bsdconfig"
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f_include_lang $BSDCFG_LIBE/include/messages.subr
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############################################################ GLOBALS
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DIRECTORY_CHECKED=
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############################################################ FUNCTIONS
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# f_media_set_directory
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#
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# Return success if we both found and set the media type to be a local
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# directory.
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#
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# Variables from variable.subr that can be used to script user input:
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#
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# VAR_DIRECTORY_PATH
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# Path to an existing directory containing the FreeBSD
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# distribution files.
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#
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f_media_set_directory()
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{
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local path
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f_media_close
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f_variable_get_value $VAR_DIRECTORY_PATH \
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"$msg_enter_a_fully_qualified_pathname_for_the_directory"
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f_getvar $VAR_DIRECTORY_PATH path
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[ "$path" ] || return $FAILURE
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f_struct_new DEVICE device_directory
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device_directory set name "$path"
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device_directory set get f_media_get_directory
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device_directory set init f_media_init_directory
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device_directory set shutdown f_media_shutdown_directory
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device_directory set private "$path"
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f_struct_copy device_directory device_media
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f_struct_free device_directory
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f_struct device_media || return $FAILURE
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}
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# f_media_init_directory $device
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#
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# Initializes the Directory media device. Returns success if the directory path
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# both exists and is a directory.
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#
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f_media_init_directory()
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{
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local dev="$1" path
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$dev get private path || return $FAILURE
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f_dprintf "Init routine called for Directory device. path=[%s]" \
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"$path"
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# Track whether we've been through here before (for remote filesystems
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# mounted in the directory path, not repeating these queries saves us
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# valuable time for slow/uncooperative links).
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if [ "$DIRECTORY_CHECKED" ]; then
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f_dprintf "Directory device already checked."
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return $SUCCESS
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fi
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if [ ! -e "$path" ]; then
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f_show_msg "$msg_no_such_file_or_directory" \
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"f_media_init_directory" "$path"
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return $FAILURE
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elif [ ! -d "$path" ]; then
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f_show_msg "$msg_not_a_directory" \
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"f_media_init_directory" "$path"
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return $FAILURE
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fi
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DIRECTORY_CHECKED=1
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return $SUCCESS
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}
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# f_media_get_directory $device $file [$probe_type]
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#
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# Returns data from $file in the existing/current filesystem. Similar to
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# cat(1). If $probe_type is present and non-NULL, returns success if $file
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# exists. If $probe_type is equal to $PROBE_SIZE, prints the size of $file in
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# bytes to standard-out.
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#
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f_media_get_directory()
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{
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local dev="$1" file="$2" probe_type="$3" path
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local name
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$dev get name name
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f_dprintf "f_media_get_directory: dev=[%s] file=[%s] probe_type=%s" \
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"$name" "$file" "$probe_type"
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$dev get private path
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f_media_generic_get "$path" "$file" "$probe_type"
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}
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# f_media_shutdown_directory $device
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#
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# Shuts down the Directory device. Return status should be ignored.
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#
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f_media_shutdown_directory()
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{
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DIRECTORY_CHECKED=
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}
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############################################################ MAIN
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f_dprintf "%s: Successfully loaded." media/directory.subr
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fi # ! $_MEDIA_DIRECTORY_SUBR
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