xref: /freebsd/usr.sbin/bsdconfig/share/device.subr (revision bc3f5ec90bde2f3a5e4021d133c89793d68b8c73)
1if [ ! "$_DEVICE_SUBR" ]; then _DEVICE_SUBR=1
2#
3# Copyright (c) 2012-2014 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# $FreeBSD$
28#
29############################################################ INCLUDES
30
31BSDCFG_SHARE="/usr/share/bsdconfig"
32. $BSDCFG_SHARE/common.subr || exit 1
33f_dprintf "%s: loading includes..." device.subr
34f_include $BSDCFG_SHARE/dialog.subr
35f_include $BSDCFG_SHARE/strings.subr
36f_include $BSDCFG_SHARE/struct.subr
37
38BSDCFG_LIBE="/usr/libexec/bsdconfig"
39f_include_lang $BSDCFG_LIBE/include/messages.subr
40
41############################################################ GLOBALS
42
43DEVICES=
44DEVICE_NAMES=
45NDEVICES=0
46
47# A "device" from sysinstall's point of view
48f_struct_define DEVICE \
49	name		\
50	desc		\
51	devname		\
52	type		\
53	capacity	\
54	enabled		\
55	init		\
56	get		\
57	shutdown	\
58	flags		\
59	private		\
60	volume
61
62# Network devices have their `private' property set to this
63f_struct_define DEVICE_INFO \
64	use_rtsol use_dhcp ipaddr ipv6addr netmask extras
65
66setvar DEVICE_TYPE_NONE		1
67setvar DEVICE_TYPE_DISK		2
68setvar DEVICE_TYPE_FLOPPY	3
69setvar DEVICE_TYPE_FTP		4
70setvar DEVICE_TYPE_NETWORK	5
71setvar DEVICE_TYPE_CDROM	6
72setvar DEVICE_TYPE_USB		7
73setvar DEVICE_TYPE_DOS		8
74setvar DEVICE_TYPE_UFS		9
75setvar DEVICE_TYPE_NFS		10
76setvar DEVICE_TYPE_ANY		11
77setvar DEVICE_TYPE_HTTP_PROXY	12
78setvar DEVICE_TYPE_HTTP		13
79
80# Network devices have the following flags available
81setvar IF_ETHERNET	1
82setvar IF_WIRELESS	2
83setvar IF_ACTIVE	4
84
85#
86# Default behavior is to call f_device_get_all() automatically when loaded.
87#
88: ${DEVICE_SELF_SCAN_ALL=1}
89
90############################################################ FUNCTIONS
91
92# f_device_try $name [$i [$var_path]]
93#
94# Test a particular device. If $i is given, then $name is expected to contain a
95# single "%d" where $i will be inserted using printf. If $var_path is given,
96# it is used as a variable name to provide the caller the device pathname.
97#
98# Returns success if the device path exists and is a cdev.
99#
100f_device_try()
101{
102	local name="$1" i="$2" var_path="$3" unit
103	if [ "$i" ]; then
104		f_sprintf unit "$name" "$i"
105	else
106		unit="$name"
107	fi
108	case "$unit" in
109	/dev/*) : good ;; # already qualified
110	*) unit="/dev/$unit" ;;
111	esac
112	[ "$var_path" ] && setvar "$var_path" "$unit"
113	f_dprintf "f_device_try: making sure %s is a device node" "$unit"
114	if [ -c "$unit" ]; then
115		f_dprintf "f_device_try: %s is a cdev [good]" "$unit"
116		return $SUCCESS
117	else
118		f_dprintf "f_device_try: %s is not a cdev [skip]" "$unit"
119		return $FAILURE
120	fi
121}
122
123# f_device_register $name $desc $devname $type $enabled $init_function \
124#                   $get_function $shutdown_function $private $capacity
125#
126# Register a device. A `structure' (see struct.subr) is created with the name
127# device_$name (so make sure $name contains only alpha-numeric characters or
128# the underscore, `_'). The remaining arguments after $name correspond to the
129# properties of the `DEVICE' structure-type (defined above).
130#
131# If not already registered, the device is then appended to the DEVICES
132# environment variable, a space-separated list of all registered devices.
133#
134f_device_register()
135{
136	local name="$1" desc="$2" devname="$3" type="$4" enabled="$5"
137	local init_func="$6" get_func="$7" shutdown_func="$8" private="$9"
138	local capacity="${10}"
139
140	f_struct_new DEVICE "device_$name" || return $FAILURE
141	device_$name set name     "$name"
142	device_$name set desc     "$desc"
143	device_$name set devname  "$devname"
144	device_$name set type     "$type"
145	device_$name set enabled  "$enabled"
146	device_$name set init     "$init_func"
147	device_$name set get      "$get_func"
148	device_$name set shutdown "$shutdown_func"
149	device_$name set private  "$private"
150	device_$name set capacity "$capacity"
151
152	# Scan our global register to see if it needs ammending
153	local dev found=
154	for dev in $DEVICES; do
155		[ "$dev" = "$name" ] || continue
156		found=1 && break
157	done
158	[ "$found" ] || DEVICES="$DEVICES $name"
159
160	return $SUCCESS
161}
162
163# f_device_reset
164#
165# Reset the registered device chain.
166#
167f_device_reset()
168{
169	local dev
170	for dev in $DEVICES; do
171		f_device_shutdown $dev
172
173		# XXX This potentially leaks $dev->private if it's being
174		# used to point to something dynamic, but you're not supposed
175		# to call this routine at such times that some open instance
176		# has its private member pointing somewhere anyway.
177		#
178		f_struct_free device_$dev
179	done
180	DEVICES=
181}
182
183# f_device_reset_network
184#
185# Reset the registered network device chain.
186#
187f_device_reset_network()
188{
189	local dev type private pruned_list=
190	for dev in $DEVICES; do
191		device_$dev get type type
192		if [ "$type" != "$DEVICE_TYPE_NETWORK" ]; then
193			pruned_list="$pruned_list $dev"
194			continue
195		fi
196
197		#
198		# Leave the device up (don't call shutdown routine)
199		#
200
201		# Network devices may have DEVICE_INFO private member
202		device_$dev get private private
203		[ "$private" ] && f_struct_free "$private"
204
205		f_struct_free device_$dev
206	done
207	DEVICES="${pruned_list# }"
208}
209
210# f_device_get_all
211#
212# Get all device information for devices we have attached.
213#
214f_device_get_all()
215{
216	local devname desc capacity
217
218	f_dprintf "f_device_get_all: Probing devices..."
219	f_dialog_info "$msg_probing_devices_please_wait_this_can_take_a_while"
220
221	# First go for the network interfaces
222	f_device_get_all_network
223
224	# Next, try to find all the types of devices one might use
225	# as a media source for content
226	#
227
228	local dev type max n=0
229	for dev in $DEVICE_NAMES; do
230		n=$(( $n + 1 ))
231		# Get the desc, type, and max (with debugging disabled)
232		# NOTE: Bypassing f_device_name_get() for efficiency
233		# ASIDE: This would be equivalent to the following:
234		# 	debug= f_device_name_get $dev desc
235		# 	debug= f_device_name_get $dev type
236		# 	debug= f_device_name_get $dev max
237		debug= f_getvar _device_desc$n desc
238		debug= f_getvar _device_type$n type
239		debug= f_getvar _device_max$n max
240
241		local k=0
242		while [ $k -lt ${max:-0} ]; do
243			i=$k k=$(( $k + 1 ))
244			devname=""
245			case "$type" in
246			$DEVICE_TYPE_CDROM)
247				f_device_try "$dev" "$i" devname || continue
248				f_device_capacity "$devname" capacity
249				f_device_register "${devname##*/}" "$desc" \
250					"$devname" $DEVICE_TYPE_CDROM 1 \
251					f_media_init_cdrom f_media_get_cdrom \
252					f_media_shutdown_cdrom "" "$capacity"
253				f_dprintf "Found a CDROM device for %s" \
254				          "$devname"
255				;;
256			$DEVICE_TYPE_FLOPPY)
257				f_device_try "$dev" "$i" devname || continue
258				f_device_capacity "$devname" capacity
259				f_device_register "${devname##*/}" "$desc" \
260					"$devname" $DEVICE_TYPE_FLOPPY 1 \
261					f_media_init_floppy \
262					f_media_get_floppy \
263					f_media_shutdown_floppy "" "$capacity"
264				f_dprintf "Found a floppy device for %s" \
265				          "$devname"
266				;;
267			$DEVICE_TYPE_USB)
268				f_device_try "$dev" "$i" devname || continue
269				f_device_capacity "$devname" capacity
270				f_device_register "${devname##*/}" "$desc" \
271					"$devname" $DEVICE_TYPE_USB 1 \
272					f_media_init_usb f_media_get_usb \
273					f_media_shutdown_usb "" "$capacity"
274				f_dprintf "Found a USB disk for %s" "$devname"
275				;;
276			esac
277		done
278	done
279
280	# Register ISO9660 providers as CDROM devices
281	for devname in /dev/iso9660/*; do
282		f_device_try "$devname" || continue
283		f_device_capacity "$devname" capacity
284		f_device_register "${devname##*/}" "ISO9660 file system" \
285			"$devname" $DEVICE_TYPE_CDROM 1 \
286			f_media_init_cdrom f_media_get_cdrom \
287			f_media_shutdown_cdrom "" "$capacity"
288		f_dprintf "Found a CDROM device for %s" "$devname"
289	done
290
291	# Scan for mdconfig(8)-created md(4) devices
292	local filename
293	for devname in /dev/md[0-9] /dev/md[0-9][0-9]; do
294		f_device_try "$devname" || continue
295
296		# See if the md(4) device is a vnode type backed by a file
297		filename=$( sysctl kern.geom.conftxt |
298			awk -v devname="${devname##*/}" \
299			'
300				( $2 == "MD" ) && \
301				( $3 == devname ) && \
302				( $(NF-2) == "vnode" ) && \
303				( $(NF-1) == "file" ) \
304				{
305					print $NF
306				}
307			' )
308		case "$filename" in
309		*.iso) # Register the device as an ISO9660 provider
310			f_device_capacity "$devname" capacity
311			f_device_register "${devname##*/}" \
312				"md(4) vnode file system" \
313				"$devname" $DEVICE_TYPE_CDROM 1 \
314				f_media_init_cdrom f_media_get_cdrom \
315				f_media_shutdown_cdrom "" "$capacity"
316			f_dprintf "Found a CDROM device for %s" "$devname"
317			;;
318		esac
319	done
320
321	# Finally go get the disks and look for partitions to register
322	local diskname slices index type rest slice part
323	for diskname in $( sysctl -n kern.disks ); do
324
325		case "$diskname" in
326		cd*)
327			# XXX Due to unknown reasons, kern.disks returns SCSI
328			# CDROM as a valid disk. This will prevent bsdconfig
329			# from presenting SCSI CDROMs as available disks in
330			# various menus. Why GEOM treats SCSI CDROM as a disk
331			# is beyond me and that should be investigated.
332			# For temporary workaround, ignore SCSI CDROM device.
333			#
334			continue ;;
335		esac
336
337		# Try to create a list of partitions and their types,
338		# consisting of "N,typeN ..." (e.g., "1,0xa5 2,0x06").
339		if ! slices=$( fdisk -p "$diskname" 2> /dev/null |
340			awk '( $1 == "p" ) { print $2","$3 }' )
341		then
342			f_dprintf "Unable to open disk %s" "$diskname"
343			continue
344		fi
345
346		# Try and find its description
347		f_device_desc "$diskname" $DEVICE_TYPE_DISK desc
348
349		f_device_capacity "$diskname" capacity
350		f_device_register "$diskname" "$desc" \
351		                  "/dev/$diskname" $DEVICE_TYPE_DISK 0 \
352		                  "" "" "" "" "$capacity"
353		f_dprintf "Found a disk device named %s" "$diskname"
354
355		# Look for existing partitions to register
356		for slice in $slices; do
357			index="${slice%%,*}" type="${slice#*,}"
358			slice=${diskname}s$index
359			case "$type" in
360			0x01|0x04|0x06|0x0b|0x0c|0x0e|0xef)
361				# DOS partitions to add as "DOS media devices"
362				f_device_capacity "/dev/$slice" capacity
363				f_device_register "$slice" "" \
364					"/dev/$slice" $DEVICE_TYPE_DOS 1 \
365					f_media_init_dos f_media_get_dos \
366					f_media_shutdown_dos "" "$capacity"
367				f_dprintf "Found a DOS partition %s" "$slice"
368				;;
369			0xa5) # FreeBSD partition
370				for part in $(
371					bsdlabel -r $slice 2> /dev/null |
372						awk -v slice="$slice" '
373						( $1 ~ /[abdefgh]:/ ) {
374							printf "%s%s\n",
375							       slice,
376							       substr($1,1,1)
377						}'
378				); do
379					f_quietly dumpfs -m /dev/$part ||
380						continue
381					f_device_capacity \
382						"$/dev/$part" capacity
383					f_device_register \
384						"$part" "" "/dev/$part" \
385						$DEVICE_TYPE_UFS 1 \
386						f_media_init_ufs \
387						f_media_get_ufs \
388						f_media_shutdown_ufs "" \
389						"$capacity"
390					f_dprintf "Found a UFS partition %s" \
391					          "$part"
392				done # parts
393				;;
394			esac
395		done # slices
396
397	done # disks
398}
399
400# f_device_get_all_network
401#
402# Get all network device information for attached network devices.
403#
404f_device_get_all_network()
405{
406	local devname desc flags
407	for devname in $( ifconfig -l ); do
408		# Eliminate network devices that don't make sense
409		case "$devname" in
410		lo*) continue ;;
411		esac
412
413		# Try and find its description
414		f_device_desc "$devname" $DEVICE_TYPE_NETWORK desc
415
416		f_dprintf "Found a network device named %s" "$devname"
417		f_device_register $devname \
418			"$desc" "$devname" $DEVICE_TYPE_NETWORK 1 \
419			f_media_init_network "" f_media_shutdown_network "" -1
420
421		# Set flags based on media and status
422		flags=0
423		eval "$( ifconfig $devname 2> /dev/null | awk -v var=flags '
424		function _or(var, mask) {
425			printf "%s=$(( $%s | $%s ))\n", var, var, mask
426		}
427		BEGIN { S = "[[:space:]]+" }
428		{
429			if (!match($0, "^" S "(media|status):" S)) next
430			value = substr($0, RLENGTH + 1)
431			if ($1 == "media:") {
432				if (value ~ /Ethernet/) _or(var, "IF_ETHERNET")
433				if (value ~ /802\.11/) _or(var, "IF_WIRELESS")
434			} else if ($1 == "status:") {
435				if (value ~ /^active/) _or(var, "IF_ACTIVE")
436			}
437		}' )"
438		device_$devname set flags $flags
439	done
440}
441
442# f_device_name_get $type $name type|desc|max [$var_to_set]
443#
444# Fetch the device type (type), description (desc), or maximum number of
445# devices to scan for (max) associated with device $name and $type. If $type is
446# either NULL, missing, or set to $DEVICE_TYPE_ANY then only $name is used.
447# Returns success if a match was found, otherwise failure.
448#
449# If $var_to_set is missing or NULL, the device name is printed to standard out
450# for capturing in a sub-shell (which is less-recommended because of
451# performance degredation; for example, when called in a loop).
452#
453f_device_name_get()
454{
455	local __type="$1" __name="$2" __prop="$3" __var_to_set="$4"
456	local __dev __devtype __n=0
457
458	# Return failure if no $name or $prop is an unknown property
459	[ "$__name" ] || return $FAILURE
460	case "$__prop" in type|desc|max) : good ;;
461	*) return $FAILURE; esac
462
463	#
464	# Attempt to create an alternate-form of $__name that contains the
465	# first contiguous string of numbers replaced with `%d' for comparison
466	# against stored pattern names (see MAIN).
467	#
468	local __left="${__name%%[0-9]*}" __right="${__name#*[0-9]}" __dname=
469	if [ "$__left" != "$__name" ]; then
470		# Chop leading digits from right 'til we hit first non-digit
471		while :; do
472			case "$__right" in
473			[0-9]*) __right="${__right#[0-9]}" ;;
474			     *) break
475			esac
476		done
477		__dname="${__left}%d$__right"
478	fi
479
480	[ "$__type" = "$DEVICE_TYPE_ANY" ] && __type=
481	for __dev in $DEVICE_NAMES; do
482		__n=$(( $__n + 1 ))
483		[ "$__dev" = "$__name" -o "$__dev" = "$__dname" ] || continue
484		f_getvar _device_type$__n __devtype
485		[ "${__type:-$__devtype}" = "$__devtype" ] || continue
486		f_getvar _device_$__prop$__n $__var_to_set
487		return $?
488	done
489	return $FAILURE
490}
491
492# f_device_name_set $type $name $desc [$max]
493#
494# Store a description (desc) and [optionally] maximum number of devices to scan
495# for (max) in-association with device $type and $name. Returns success unless
496# $name is NULL or missing. Use the f_device_name_get() routine with the same
497# $name and optionally $type to retrieve one of type, desc, or max properties.
498#
499f_device_name_set()
500{
501	local type="$1" name="$2" desc="$3" max="$4"
502	local dev devtype n=0 found=
503	[ "$name" ] || return $FAILURE
504	for dev in $DEVICE_NAMES; do
505		n=$(( $n + 1 ))
506		[ "$dev" = "$name" ] || continue
507		if f_getvar _device_type$n devtype; then
508			# Allow multiple entries with same name but diff type
509			[ "$devtype" = "$type" ] || continue
510		fi
511		found=1 && break
512	done
513	if [ ! "$found" ]; then
514		DEVICE_NAMES="$DEVICE_NAMES $name"
515		n=$(( $n + 1 ))
516	fi
517	setvar _device_type$n "$type"
518	setvar _device_desc$n "$desc"
519	[ "${4+set}" ] && setvar _device_max$n "$max"
520	return $SUCCESS
521}
522
523# f_device_desc $device_name $device_type [$var_to_set]
524#
525# Print a description for a device name (eg., `fxp0') given a specific device
526# type/class.
527#
528# If $var_to_set is missing or NULL, the device description is printed to
529# standard out for capturing in a sub-shell (which is less-recommended because
530# of performance degredation; for example, when called in a loop).
531#
532f_device_desc()
533{
534	local __name="$1" __type="$2" __var_to_set="$3"
535	local __devname __devunit __cp
536
537	# Check variables
538	[ "$__name" ] || return $SUCCESS
539	[ "$__type" = "$DEVICE_TYPE_ANY" ] && type=
540	[ "$__var_to_set" ] && { setvar "$__var_to_set" "" || return; }
541
542	#
543	# Return sysctl MIB dev.NAME.UNIT.%desc if it exists,
544	# otherwise fall through to below static list.
545	#
546	if f_have sysctl; then
547		__devname="${__name%%[0-9]*}"
548		__devunit="${__name#$__devname}"
549		__devunit="${__devunit%%[!0-9]*}"
550		if [ "$__var_to_set" ]; then
551			if __cp=$(
552				sysctl -n "dev.$__devname.$__devunit.%desc" \
553				2> /dev/null
554			); then
555				setvar "$__var_to_set" "$__cp" &&
556					return $SUCCESS
557			fi
558		else
559			sysctl -n "dev.$__devname.$__devunit.%desc" \
560				2> /dev/null && return $SUCCESS
561		fi
562	fi
563
564	#
565	# For disks, attempt to return camcontrol(8) descriptions.
566	# Otherwise fall through to below static list.
567	#
568	f_have camcontrol &&
569	[ "${__type:-$DEVICE_TYPE_DISK}" = "$DEVICE_TYPE_DISK" ] &&
570	__cp=$( camcontrol devlist 2> /dev/null | awk -v disk="$__name" '
571		$0~"(\\(|,)"disk"(,|\\))" {
572			if (!match($0, "<[^>]+>")) next
573			print substr($0, RSTART+1, RLENGTH-2)
574			found = 1
575			exit
576		}
577		END { exit ! found }
578	' ) && setvar "$__var_to_set" "$__cp" && return $SUCCESS
579
580	#
581	# Attempt to create an alternate-form of $__name that contains the
582	# first contiguous string of numbers replaced with `%d' for comparison
583	# against stored pattern names (see MAIN).
584	#
585	local __left="${__name%%[0-9]*}" __right="${__name#*[0-9]}" __dname=
586	if [ "$__left" != "$__name" ]; then
587		# Chop leading digits from right 'til we hit first non-digit
588		while :; do
589			case "$__right" in
590			[0-9]*) __right="${__right#[0-9]}" ;;
591			     *) break
592			esac
593		done
594		__dname="${__left}%d$__right"
595	fi
596
597	local __dev __devtype __n=0
598	for __dev in $DEVICE_NAMES; do
599		__n=$(( $__n + 1 ))
600		debug= f_getvar _device_type$__n __devtype
601		[ "${__type:-$__devtype}" = "$__devtype" ] || continue
602		if [ "$__devtype" = "$DEVICE_TYPE_NETWORK" ]; then
603			__devname=$( f_substr "$__name" 0 ${#__dev} )
604			[ "$__devname" = "$__dev" ] || continue
605		else
606			[ "$__dev" = "$__name" -o "$__dev" = "$__dname" ] ||
607				continue
608		fi
609		debug= f_getvar _device_desc$__n $__var_to_set
610		return $?
611	done
612
613	#
614	# Sensible fall-backs for specific types
615	#
616	case "$__type" in
617	$DEVICE_TYPE_CDROM)   __cp="<unknown cdrom device type>" ;;
618	$DEVICE_TYPE_DISK)    __cp="<unknown disk device type>" ;;
619	$DEVICE_TYPE_FLOPPY)  __cp="<unknown floppy device type>" ;;
620	$DEVICE_TYPE_USB)     __cp="<unknown usb storage device type>" ;;
621	$DEVICE_TYPE_NETWORK) __cp="<unknown network interface type>" ;;
622	*)
623		__cp="<unknown device type>"
624	esac
625
626	if [ "$__var_to_set" ]; then
627		setvar "$__var_to_set" "$__cp"
628	else
629		echo "$__cp"
630	fi
631
632	return $FAILURE
633}
634
635# f_device_is_ethernet $device
636#
637# Returns true if $device is a wired Ethernet network interface. Otherwise
638# returns false. Example wired interfaces include: fxp0 em0 bge0 rl0 etc.
639#
640f_device_is_ethernet()
641{
642	local dev="$1" type flags
643
644	# Make sure we have an actual device by that name
645	f_struct "device_$dev" || return $FAILURE
646
647	# Make sure that the device is a network device
648	device_$dev get type type
649	[ "$type" = "$DEVICE_TYPE_NETWORK" ] || return $FAILURE
650
651	# Make sure that the media flags indicate that it is Ethernet
652	device_$dev get flags flags
653	[ $(( ${flags:-0} & $IF_ETHERNET )) -eq $IF_ETHERNET ]
654}
655
656# f_device_is_wireless $device
657#
658# Returns true if $device is a Wireless network interface. Otherwise returns
659# false. Examples of wireless interfaces include: iwn0
660#
661f_device_is_wireless()
662{
663	local dev="$1" type flags
664
665	# Make sure we have an actual device by that name
666	f_struct "device_$dev" || return $FAILURE
667
668	# Make sure that the device is a network device
669	device_$dev get type type
670	[ "$type" = "$DEVICE_TYPE_NETWORK" ] || return $FAILURE
671
672	# Make sure that the media flags indicate that it is Ethernet
673	device_$dev get flags flags
674	[ $(( ${flags:-0} & $IF_WIRELESS )) -eq $IF_WIRELESS ]
675}
676
677# f_device_is_active $device
678#
679# Returns true if $device is active. Otherwise returns false. Currently this
680# only works for network interfaces.
681#
682f_device_is_active()
683{
684	local dev="$1" type flags=0
685
686	# Make sure we have an actual device by that name
687	f_struct "device_$dev" || return $FAILURE
688
689	device_$dev get type type
690	case "$type" in
691	$DEVICE_TYPE_NETWORK)
692		# Make sure that the media flags indicate that it is active
693		device_$dev get flags flags
694		[ $(( ${flags:-0} & $IF_ACTIVE )) -eq $IF_ACTIVE ]
695		;;
696	*)
697		return $FAILURE
698	esac
699}
700
701# f_device_rescan
702#
703# Rescan all devices, after closing previous set - convenience function.
704#
705f_device_rescan()
706{
707	f_device_reset
708	f_device_get_all
709}
710
711# f_device_rescan_network
712#
713# Rescan all network devices, after closing previous set - for convenience.
714#
715f_device_rescan_network()
716{
717	f_device_reset_network
718	f_device_get_all_network
719}
720
721# f_device_find $name [$type [$var_to_set]]
722#
723# Find one or more registered devices by name, type, or both. Returns a space-
724# separated list of devices matching the search criterion.
725#
726# If $var_to_set is missing or NULL, the device name(s) are printed to standard
727# out for capturing in a sub-shell (which is less-recommended because of
728# performance degredation; for example, when called in a loop).
729#
730f_device_find()
731{
732	local __name="$1" __type="${2:-$DEVICE_TYPE_ANY}" __var_to_set="$3"
733	local __dev __devname __devtype __found=
734	for __dev in $DEVICES; do
735		device_$__dev get name __devname
736		device_$__dev get type __devtype
737		if [ "$__name" = "$__devname" -o ! "$__name" ] &&
738		   [ "$__type" = "$DEVICE_TYPE_ANY" -o \
739		     "$__type" = "$__devtype" ]
740		then
741			__found="$__found $__dev"
742		fi
743	done
744	if [ "$__var_to_set" ]; then
745		setvar "$__var_to_set" "${__found# }"
746	else
747		echo $__found
748	fi
749	[ "$__found" ] # Return status
750}
751
752# f_device_init $name
753#
754# Initialize a device by evaluating its `init' function.
755#
756f_device_init()
757{
758	local name="$1" init_func
759	device_$name get init init_func || return $?
760	${init_func:-:} $name
761}
762
763# f_device_get $name $file [$probe]
764#
765# Read $file by evaluating the device's `get' function. The file is commonly
766# produced on standard output (but it truly depends on the function called).
767#
768f_device_get()
769{
770	local name="$1" file="$2" probe="$3" get_func
771	device_$name get get get_func || return $?
772	${get_func:-:} $name "$file" ${3+"$probe"}
773}
774
775# f_device_shutdown $name
776#
777# Shutdown a device by evaluating its `shutdown' function.
778#
779f_device_shutdown()
780{
781	local name="$1" shutdown_func
782	device_$name get shutdown shutdown_func || return $?
783	${shutdown_func:-:} $name
784}
785
786# f_device_menu $title $prompt $hline $device_type [$helpfile]
787#
788# Display a menu listing all the devices of a certain type in the system.
789#
790f_device_menu()
791{
792	f_dialog_title "$1"
793	local title="$DIALOG_TITLE" btitle="$DIALOG_BACKTITLE"
794	f_dialog_title_restore
795
796	local prompt="$2" hline="$3" type="$4" helpfile="$5"
797
798	local dev devtype devs=
799	for dev in $DEVICES; do
800		device_$dev get type devtype || continue
801		[ "$devtype" = "$type" ] || continue
802		devs="$devs $dev"
803	done
804	[ "$devs" ] || return $DIALOG_CANCEL
805
806	local desc menu_list=
807	for dev in $devs; do
808		device_$dev get desc desc
809		f_shell_escape "$desc" desc
810		menu_list="$menu_list '$dev' '$desc'"
811	done
812
813	local height width rows
814	eval f_dialog_menu_size height width rows \
815	                        \"\$title\"  \
816	                        \"\$btitle\" \
817	                        \"\$prompt\" \
818	                        \"\$hline\"  \
819	                        $menu_list
820
821	local errexit=
822	case $- in *e*) errexit=1; esac
823	set +e
824
825	local mtag
826	while :; do
827		mtag=$( eval $DIALOG \
828			--title \"\$title\"             \
829			--backtitle \"\$btitle\"        \
830			--ok-label \"\$msg_ok\"         \
831			--cancel-label \"\$msg_cancel\" \
832			${helpfile:+                    \
833			  --help-button                 \
834			  --help-label \"\$msg_help\"   \
835			  ${USE_XDIALOG:+--help \"\"}   \
836			}                               \
837			--menu \"\$prompt\"             \
838			$height $width $rows            \
839			$menu_list                      \
840			2>&1 >&$DIALOG_TERMINAL_PASSTHRU_FD
841		)
842		local retval=$?
843
844		[ $retval -ne $DIALOG_HELP ] && break
845			# Otherwise, the Help button was pressed
846		f_show_help "$helpfile"
847			# ...then loop back to menu
848	done
849	f_dprintf "retval=%u mtag=[%s]" $retval "$mtag"
850
851	[ "$errexit" ] && set -e
852
853	if [ $retval -eq $DIALOG_OK ]; then
854		# Clean up the output of [X]dialog(1) and return it
855		f_dialog_data_sanitize mtag
856		echo "$mtag" >&2
857	fi
858
859	return $retval
860}
861
862# f_device_capacity $device [$var_to_set]
863#
864# Return the capacity of $device in bytes.
865#
866f_device_capacity()
867{
868	local __dev="$1" __var_to_set="$2"
869	local __bytes
870
871	__bytes=$( diskinfo -v "$__dev" 2> /dev/null |
872		awk '/# mediasize in bytes/{print $1}' ) || __bytes=-1
873
874	if [ "$__var_to_set" ]; then
875		setvar "$__var_to_set" "$__bytes"
876	else
877		echo "$__bytes"
878	fi
879}
880
881#
882# Short-hand
883#
884f_cdrom()   {  f_device_name_set $DEVICE_TYPE_CDROM   "$1" "$2" "$3";  }
885f_disk()    {  f_device_name_set $DEVICE_TYPE_DISK    "$1" "$2" "$3";  }
886f_floppy()  {  f_device_name_set $DEVICE_TYPE_FLOPPY  "$1" "$2" "$3";  }
887f_serial()  {  f_device_name_set $DEVICE_TYPE_NETWORK "$1" "$2" "$3";  }
888f_usb()     {  f_device_name_set $DEVICE_TYPE_USB     "$1" "$2" "$3";  }
889f_network() {  f_device_name_set $DEVICE_TYPE_NETWORK "$1" "$2";       }
890
891############################################################ MAIN
892
893# CDROM, Disk, Floppy, Serial, and USB devices/names
894f_cdrom  "cd%d"   "SCSI CDROM drive"                  4
895f_cdrom  "mcd%d"  "Mitsumi (old model) CDROM drive"   4
896f_cdrom  "scd%d"  "Sony CDROM drive - CDU31/33A type" 4
897f_disk   "aacd%d" "Adaptec FSA RAID array"            4
898f_disk   "ada%d"  "ATA/SATA disk device"              16
899f_disk   "amrd%d" "AMI MegaRAID drive"                4
900f_disk   "da%d"   "SCSI disk device"                  16
901f_disk   "idad%d" "Compaq RAID array"                 4
902f_disk   "ipsd%d" "IBM ServeRAID RAID array"          4
903f_disk   "mfid%d" "LSI MegaRAID SAS array"            4
904f_disk   "mlxd%d" "Mylex RAID disk"                   4
905f_disk   "twed%d" "3ware ATA RAID array"              4
906f_disk   "vtbd%d" "VirtIO Block Device"               16
907f_floppy "fd%d"   "Floppy Drive unit A"               4
908f_serial "cuau%d" "%s on device %s (COM%d)"           16
909f_usb    "da%da"  "USB Mass Storage Device"           16
910
911# Network interfaces/names
912f_network "ae"    "Attansic/Atheros L2 Fast Ethernet"
913f_network "age"   "Attansic/Atheros L1 Gigabit Ethernet"
914f_network "alc"   "Atheros AR8131/AR8132 PCIe Ethernet"
915f_network "ale"   "Atheros AR8121/AR8113/AR8114 PCIe Ethernet"
916f_network "an"    "Aironet 4500/4800 802.11 wireless adapter"
917f_network "ath"   "Atheros IEEE 802.11 wireless adapter"
918f_network "aue"   "ADMtek USB Ethernet adapter"
919f_network "axe"   "ASIX Electronics USB Ethernet adapter"
920f_network "bce"   "Broadcom NetXtreme II Gigabit Ethernet card"
921f_network "bfe"   "Broadcom BCM440x PCI Ethernet card"
922f_network "bge"   "Broadcom BCM570x PCI Gigabit Ethernet card"
923f_network "bm"    "Apple BMAC Built-in Ethernet"
924f_network "bwn"   "Broadcom BCM43xx IEEE 802.11 wireless adapter"
925f_network "cas"   "Sun Cassini/Cassini+ or NS DP83065 Saturn Ethernet"
926f_network "cc3i"  "SDL HSSI sync serial PCI card"
927f_network "cue"   "CATC USB Ethernet adapter"
928f_network "cxgb"  "Chelsio T3 10Gb Ethernet card"
929f_network "dc"    "DEC/Intel 21143 (and clones) PCI Fast Ethernet card"
930f_network "de"    "DEC DE435 PCI NIC or other DC21040-AA based card"
931f_network "disc"  "Software discard network interface"
932f_network "ed"    "Novell NE1000/2000; 3C503; NE2000-compatible PCMCIA"
933f_network "el"    "3Com 3C501 Ethernet card"
934f_network "em"    "Intel(R) PRO/1000 Ethernet card"
935f_network "en"    "Efficient Networks ATM PCI card"
936f_network "ep"    "3Com 3C509 Ethernet card/3C589 PCMCIA"
937f_network "et"    "Agere ET1310 based PCI Express Gigabit Ethernet card"
938f_network "ex"    "Intel EtherExpress Pro/10 Ethernet card"
939f_network "fe"    "Fujitsu MB86960A/MB86965A Ethernet card"
940f_network "fpa"   "DEC DEFPA PCI FDDI card"
941f_network "fwe"   "FireWire Ethernet emulation"
942f_network "fwip"  "IP over FireWire"
943f_network "fxp"   "Intel EtherExpress Pro/100B PCI Fast Ethernet card"
944f_network "gem"   "Apple GMAC or Sun ERI/GEM Ethernet adapter"
945f_network "hme"   "Sun HME (Happy Meal Ethernet) Ethernet adapter"
946f_network "ie"    "AT&T StarLAN 10 and EN100; 3Com 3C507; NI5210"
947f_network "igb"   "Intel(R) PRO/1000 PCI Express Gigabit Ethernet card"
948f_network "ipw"   "Intel PRO/Wireless 2100 IEEE 802.11 adapter"
949f_network "iwi"   "Intel PRO/Wireless 2200BG/2225BG/2915ABG adapter"
950f_network "iwn"   "Intel Wireless WiFi Link 4965AGN IEEE 802.11n adapter"
951f_network "ixgbe" "Intel(R) PRO/10Gb Ethernet card"
952f_network "ixgb"  "Intel(R) PRO/10Gb Ethernet card"
953f_network "ix"    "Intel Etherexpress Ethernet card"
954	# Maintain sequential order of above(3): ixgbe ixgb ix
955f_network "jme"   "JMicron JMC250 Gigabit/JMC260 Fast Ethernet"
956f_network "kue"   "Kawasaki LSI USB Ethernet adapter"
957f_network "le"    "AMD Am7900 LANCE or Am79C9xx PCnet Ethernet adapter"
958f_network "lge"   "Level 1 LXT1001 Gigabit Ethernet card"
959f_network "lnc"   "Lance/PCnet (Isolan/Novell NE2100/NE32-VL) Ethernet"
960f_network "lo"    "Loop-back (local) network interface"
961f_network "lp"    "Parallel Port IP (PLIP) peer connection"
962f_network "malo"  "Marvell Libertas 88W8335 802.11 wireless adapter"
963f_network "msk"   "Marvell/SysKonnect Yukon II Gigabit Ethernet"
964f_network "mxge"  "Myricom Myri10GE 10Gb Ethernet card"
965f_network "nfe"   "NVIDIA nForce MCP Ethernet"
966f_network "nge"   "NatSemi PCI Gigabit Ethernet card"
967f_network "ng"    "Vimage netgraph(4) bridged Ethernet device"
968	# Maintain sequential order of above(2): nge ng
969f_network "nve"   "NVIDIA nForce MCP Ethernet"
970f_network "nxge"  "Neterion Xframe 10GbE Server/Storage adapter"
971f_network "pcn"   "AMD Am79c79x PCI Ethernet card"
972f_network "plip"  "Parallel Port IP (PLIP) peer connection"
973f_network "ral"   "Ralink Technology IEEE 802.11 wireless adapter"
974f_network "ray"   "Raytheon Raylink 802.11 wireless adapter"
975f_network "re"    "RealTek 8139C+/8169/8169S/8110S PCI Ethernet adapter"
976f_network "rl"    "RealTek 8129/8139 PCI Ethernet card"
977f_network "rue"   "RealTek USB Ethernet card"
978f_network "rum"   "Ralink Technology USB IEEE 802.11 wireless adapter"
979f_network "sf"    "Adaptec AIC-6915 PCI Ethernet card"
980f_network "sge"   "Silicon Integrated Systems SiS190/191 Ethernet"
981f_network "sis"   "SiS 900/SiS 7016 PCI Ethernet card"
982f_network "sk"    "SysKonnect PCI Gigabit Ethernet card"
983f_network "snc"   "SONIC Ethernet card"
984f_network "sn"    "SMC/Megahertz Ethernet card"
985	# Maintain sequential order of above(2): snc sn
986f_network "sr"    "SDL T1/E1 sync serial PCI card"
987f_network "ste"   "Sundance ST201 PCI Ethernet card"
988f_network "stge"  "Sundance/Tamarack TC9021 Gigabit Ethernet"
989f_network "ti"    "Alteon Networks PCI Gigabit Ethernet card"
990f_network "tl"    "Texas Instruments ThunderLAN PCI Ethernet card"
991f_network "txp"   "3Com 3cR990 Ethernet card"
992f_network "tx"    "SMC 9432TX Ethernet card"
993	# Maintain sequential order of above(2): txp tx
994f_network "uath"  "Atheros AR5005UG and AR5005UX USB wireless adapter"
995f_network "upgt"  "Conexant/Intersil PrismGT USB wireless adapter"
996f_network "ural"  "Ralink Technology RT2500USB 802.11 wireless adapter"
997f_network "urtw"  "Realtek 8187L USB wireless adapter"
998f_network "vge"   "VIA VT612x PCI Gigabit Ethernet card"
999f_network "vlan"  "IEEE 802.1Q VLAN network interface"
1000f_network "vr"    "VIA VT3043/VT86C100A Rhine PCI Ethernet card"
1001f_network "vx"    "3COM 3c590 / 3c595 Ethernet card"
1002f_network "wb"    "Winbond W89C840F PCI Ethernet card"
1003f_network "wi"    "Lucent WaveLAN/IEEE 802.11 wireless adapter"
1004f_network "wpi"   "Intel 3945ABG IEEE 802.11 wireless adapter"
1005f_network "wx"    "Intel Gigabit Ethernet (82452) card"
1006f_network "xe"    "Xircom/Intel EtherExpress Pro100/16 Ethernet card"
1007f_network "xl"    "3COM 3c90x / 3c90xB PCI Ethernet card"
1008f_network "zyd"   "ZyDAS ZD1211/ZD1211B USB 802.11 wireless adapter"
1009
1010f_count NDEVICES $DEVICE_NAMES
1011f_dprintf "%s: Initialized %u known device names/descriptions." device.subr \
1012	  $NDEVICES
1013
1014#
1015# Scan for the above devices unless requeted otherwise
1016#
1017f_dprintf "%s: DEVICE_SELF_SCAN_ALL=[%s]" device.subr "$DEVICE_SELF_SCAN_ALL"
1018case "$DEVICE_SELF_SCAN_ALL" in
1019""|0|[Nn][Oo]|[Oo][Ff][Ff]|[Ff][Aa][Ll][Ss][Ee]) : do nothing ;;
1020*) f_device_get_all
1021esac
1022
1023f_dprintf "%s: Successfully loaded." device.subr
1024
1025fi # ! $_DEVICE_SUBR
1026