7323adac99
accessing files from various types of media nice and abstracted away from the wet-work involved in preparing, validating, and initializing those types of media. This will be used for the package management system module and other modules that need access to files and want to allow the user to decide where those files come from (either in a scripted fashion, prompted fashion, or any combination thereof). Heavily inspired by sysinstall and even uses the same reserved words so that scripts are portable. Coded over months, tested continuously through- out, and reviewed several times. Some notes about the changes: - Move network-setting acquisition/validation routines to media/tcpip.subr - The options screen from sysinstall has been converted to a dialog menu - The "UFS" media choice is renamed to "Directory" to reflect how sysinstall treats the choice and a new [true] "UFS" media choice has been added that acts on real UFS partitions (such as external disks with disklabels). - Many more help files have been resurrected from sysinstall (I noticed that some of the content seems a bit dated; I gave them a once-over but they could really use an update). - A total of 10 media choices are presented (via mediaGetType) including: CD/DVD, FTP, FTP Passive, HTTP Proxy, Directory, NFS, DOS, UFS, Floppy, USB - Novel struct/device management layer for managing the issue of passing more information than can comfortably fit in an argument list.
215 lines
6.1 KiB
Plaintext
215 lines
6.1 KiB
Plaintext
if [ ! "$_MEDIA_FLOPPY_SUBR" ]; then _MEDIA_FLOPPY_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 (INLUDING, 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/floppy.subr
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f_include $BSDCFG_SHARE/struct.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/variable.subr
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f_include $BSDCFG_SHARE/media/common.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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FLOPPY_MOUNTED=
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FLOPPY_DISTWANTED=
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############################################################ FUNCTIONS
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# f_media_set_floppy
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#
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# Return success if we both found and set the media type to be a floppy.
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#
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f_media_set_floppy()
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{
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f_media_close
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local devs ndevs
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f_device_find "" $DEVICE_TYPE_FLOPPY devs
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ndevs=$( set -- $devs; echo $# )
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if [ ${ndevs:=0} -eq 0 ]; then
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f_interactive && f_dialog_msgbox "$msg_no_floppy_devices_found"
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return $FAILURE
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elif [ $ndevs -gt 1 ]; then
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local title="$msg_choose_a_floppy_drive"
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local prompt="$msg_please_select_a_floppy_drive"
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local hline=""
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local dev retval
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dev=$( f_device_menu \
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"$title" "$prompt" "$hline" $DEVICE_TYPE_FLOPPY \
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2>&1 >&$DIALOG_TERMINAL_PASSTHRU_FD )
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retval=$?
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[ "$dev" ] || return $FAILURE
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f_device_find "$dev" $DEVICE_TYPE_FLOPPY devs
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[ "$devs" ] || return $FAILURE
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dev="${devs%%[$IFS]*}"
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f_struct_copy device_$dev device_media
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[ $retval -eq $SUCCESS ] || return $FAILURE
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else
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f_struct_copy device_$devs device_media
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fi
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f_struct device_media &&
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device_media unset private
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f_struct device_media || return $FAILURE
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}
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# f_media_init_floppy $device
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#
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# Initializes the Floppy media device. Returns success if able to mount the
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# Floppy disk device using either mount_msdosfs(8) or mount(8) (tried in that
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# order).
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#
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f_media_init_floppy()
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{
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local dev="$1" devname err
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device_$dev get devname devname || return $FAILURE
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f_dprintf "Init floppy called for %s distribution. devname=[%s]" \
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"${FLOPPY_DISTWANTED:-some}" "$devname"
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if [ "$FLOPPY_MOUNTED" ]; then
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f_dprintf "Floppy device already mounted."
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return $SUCCESS
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fi
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local mp
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device_$dev get private mp
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if [ ! -e "${mp:=$MOUNTPOINT}" ] && ! f_quietly mkdir -p "$mp"; then
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f_show_msg "$msg_unable_to_make_directory_mountpoint" \
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"$mp" "$devname"
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return $FAILURE
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fi
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if f_interactive; then
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local desc
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device_$dev get desc desc
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if [ "$FLOPPY_DISTWANTED" ]; then
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f_show_msg "$msg_please_insert_floppy_in_drive" "$desc"
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else
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f_show_msg "$msg_please_insert_floppy_containing" \
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"$FLOPPY_DISTWANTED" "$desc"
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fi
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fi
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if ! {
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f_quietly mount_msdosfs -o ro -m 0777 -u 0 -g 0 "$devname" "$mp" ||
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err=$( mount -o ro "$devname" "$mp" 2>&1 )
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}; then
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err="${err#mount: }"; err="${err#*: }"
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local name
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device_$dev get name name
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f_show_msg "$msg_error_mounting_floppy_device" \
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"$name" "$devname" "$mp" "$err"
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return $FAILURE
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fi
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FLOPPY_MOUNTED=1
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FLOPPY_DISTWANTED=
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return $SUCCESS
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}
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# f_media_get_floppy $device $file [$probe_only]
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#
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# Returns data from $file on a mounted Floppy disk device. Similar to cat(1).
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# If $probe_only is present and non-null, limits retries to zero.
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#
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f_media_get_floppy()
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{
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local dev="$1" file="$2" probe_only="$3"
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f_dprintf "f_media_get_floppy: dev=[%s] file=[%s] probe_only=%s" \
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"$dev" "$file" "$probe_only"
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#
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# floppies don't use f_media_generic_get() because it's too expensive
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# to speculatively open files on a floppy disk. Make user get it
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# right or give up with floppies.
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#
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local mp
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device_$dev get private mp
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local fp="${mp:=$MOUNTPOINT}/$file"
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if ! [ -f "$fp" -a -r "$fp" ]; then
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local nretries=4
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[ "$probe_only" ] && return $FAILURE
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while ! [ -f "$fp" -a -r "$fp" ]; do
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if [ $nretries -eq 0 ]; then
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f_show_msg "$msg_failed_to_get_floppy_file" \
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"$fp"
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return $FAILURE
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fi
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FLOPPY_DISTWANTED="$fp"
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f_media_shutdown_floppy "$dev"
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f_media_init_floppy "$dev" || return $FAILURE
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nretries=$(( $nretries - 1 ))
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done
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fi
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cat "$fp"
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}
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# f_media_shutdown_floppy $device
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#
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# Shuts down the Floppy disk device using umount(8). Return status should be
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# ignored.
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#
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f_media_shutdown_floppy()
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{
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local dev="$1" err mp
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[ "$FLOPPY_MOUNTED" ] || return
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device_$dev get private mp
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if ! err=$( umount -f "${mp:=$MOUNTPOINT}" 2>&1 ); then
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err="${err#umount: }"; err="${err#*:}"
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f_dprintf "Umount of floppy on %s failed: %s" "$mp" "$err"
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else
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FLOPPY_MOUNTED=
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if f_interactive && [ "$_systemState" != "fixit" ]; then
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local desc
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device_$dev get desc desc
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f_show_msg "$msg_you_may_remove_the_floppy" "$desc"
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fi
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fi
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}
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############################################################ MAIN
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f_dprintf "%s: Successfully loaded." media/floppy.subr
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fi # ! $_MEDIA_FLOPPY_SUBR
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