ufs.subr revision 260678 
1if [ ! "$_MEDIA_UFS_SUBR" ]; then _MEDIA_UFS_SUBR=1
2#
3# Copyright (c) 2012-2013 Devin Teske
4# All rights reserved.
5#
6# Redistribution and use in source and binary forms, with or without
7# modification, are permitted provided that the following conditions
8# are met:
9# 1. Redistributions of source code must retain the above copyright
10#    notice, this list of conditions and the following disclaimer.
11# 2. Redistributions in binary form must reproduce the above copyright
12#    notice, this list of conditions and the following disclaimer in the
13#    documentation and/or other materials provided with the distribution.
14#
15# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18# ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25# SUCH DAMAGE.
26#
27# $FreeBSD: stable/10/usr.sbin/bsdconfig/share/media/ufs.subr 260678 2014-01-15 07:49:17Z dteske $
28#
29############################################################ INCLUDES
30
31BSDCFG_SHARE="/usr/share/bsdconfig"
32. $BSDCFG_SHARE/common.subr || exit 1
33f_dprintf "%s: loading includes..." media/ufs.subr
34f_include $BSDCFG_SHARE/device.subr
35f_include $BSDCFG_SHARE/dialog.subr
36f_include $BSDCFG_SHARE/media/common.subr
37f_include $BSDCFG_SHARE/struct.subr
38f_include $BSDCFG_SHARE/variable.subr
39
40BSDCFG_LIBE="/usr/libexec/bsdconfig"
41f_include_lang $BSDCFG_LIBE/include/messages.subr
42
43############################################################ GLOBALS
44
45UFS_MOUNTED=
46
47############################################################ FUNCTIONS
48
49# f_media_set_ufs
50#
51# Return success if we both found and set the media type to be a UFS partition.
52# Variables from variable.subr that can be used to script user input:
53#
54# 	VAR_UFS_PATH
55# 		Path to a UFS character device node to be used with mount(8) in
56# 		mounting a UFS formatted partition. Valid examples include:
57# 			/dev/da0s1a
58# 			/dev/ad4s1e
59# 		However, other forms may be valid (see mount(8) for additional
60# 		information).
61#
62f_media_set_ufs()
63{
64	local ufs
65
66	f_media_close
67
68	local devs ndevs
69	f_device_find "" $DEVICE_TYPE_UFS devs
70	f_count ndevs $devs
71
72	if [ ${ndevs:=0} -eq 0 ]; then
73		f_variable_get_value $VAR_UFS_PATH \
74		    "$msg_enter_the_device_name_of_a_ufs_formatted_partition"
75		f_getvar $VAR_UFS_PATH ufs
76		[ "$ufs" ] || return $FAILURE
77
78		local fstype
79		fstype=$( df -nT $ufs 2> /dev/null |
80			awk '!/Type/{print $2;exit}' )
81
82		f_struct_new DEVICE device_ufs
83		device_ufs set   name     ${fstype:-ufs}
84		device_ufs set   devname  "$ufs"
85		device_ufs set   get      f_media_get_ufs
86		device_ufs set   init     f_media_init_ufs
87		device_ufs set   shutdown f_media_shutdown_ufs
88		device_ufs unset private
89
90		f_struct_copy device_ufs device_media
91		f_struct_free device_ufs
92	elif [ $ndevs -gt 1 ]; then
93		local title="$msg_choose_a_ufs_partition"
94		local prompt="$msg_please_select_ufs_partition"
95		local hline=""
96
97		local dev retval
98		dev=$( f_device_menu \
99			"$title" "$prompt" "$hline" $DEVICE_TYPE_UFS \
100			2>&1 >&$DIALOG_TERMINAL_PASSTHRU_FD )
101		retval=$?
102		[ "$dev" ] || return $FAILURE
103
104		f_struct_copy device_$dev device_media
105		[ $retval -eq $SUCCESS ] || return $FAILURE
106	else
107		f_struct_copy device_$devs device_media
108	fi
109
110	f_struct device_media || return $FAILURE
111}
112
113# f_media_init_ufs $device
114#
115# Initializes the UFS media device. Returns success if able to mount the UFS
116# partition device using mount(1).
117#
118f_media_init_ufs()
119{
120	local funcname=f_media_init_ufs
121	local dev="$1" devname err
122
123	device_$dev get devname devname || return $FAILURE
124	f_dprintf "Init routine called for UFS device. devname=[%s]" \
125	          "$devname"
126
127	if [ "$UFS_MOUNTED" ]; then
128		f_dprintf "UFS device already mounted."
129		return $SUCCESS
130	fi
131
132	if [ ! -e "$devname" ]; then
133		f_show_msg "$msg_no_such_file_or_directory" \
134		           "f_media_init_ufs" "$devname"
135		return $FAILURE
136	fi
137
138	if [ ! -e "$MOUNTPOINT" ]; then
139		f_eval_catch $funcname mkdir 'mkdir -p "%s"' "$MOUNTPOINT" ||
140			return $FAILURE
141	fi
142
143	if ! f_eval_catch -dk err $funcname mount \
144		'mount "%s" "%s"' "$devname" "$MOUNTPOINT"
145	then
146		err="${err#mount: }"; err="${err#$devname : }"
147		f_show_msg "$msg_error_mounting_device" \
148		           "$devname" "$MOUNTPOINT" "$err"
149		return $FAILURE
150	fi
151	UFS_MOUNTED=1
152	return $SUCCESS
153}
154
155# f_media_get_ufs $device $file [$probe_type]
156#
157# Returns data from $file on a mounted UFS partition device. Similar to cat(1).
158# If $probe_type is present and non-NULL, returns success if $file exists. If
159# $probe_type is equal to $PROBE_SIZE, prints the size of $file in bytes to
160# standard-out.
161#
162f_media_get_ufs()
163{
164	local dev="$1" file="$2" probe_type="$3"
165
166	f_dprintf "f_media_get_ufs: dev=[%s] file=[%s] probe_type=%s" \
167	          "$dev" "$file" "$probe_type"
168
169	f_media_generic_get "$MOUNTPOINT" "$file" "$probe_type"
170}
171
172# f_media_shutdown_ufs $device
173#
174# Shuts down the UFS device using umount(8). Return status should be ignored.
175#
176f_media_shutdown_ufs()
177{
178	local funcname=f_media_shutdown_ufs
179	local dev="$1" err
180
181	[ "$UFS_MOUNTED" ] || return $FAILURE
182
183	if ! f_eval_catch -dk err $funcname umount \
184		'umount -f "%s"' "$MOUNTPOINT"
185	then
186		err="${err#umount: }"; err="${err#*: }"
187		f_show_msg "$msg_could_not_unmount_the_ufs_partition" \
188		           "$MOUNTPOINT" "$err"
189	else
190		UFS_MOUNTED=
191	fi
192}
193
194############################################################ MAIN
195
196f_dprintf "%s: Successfully loaded." media/ufs.subr
197
198fi # ! $_MEDIA_UFS_SUBR
199