Diff of /trunk/initscripts/common/sbin/modules-update

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	branches/unlabeled-1.1.1/magellan-initscripts/sbin/modules-update revision 2 by niro, Mon Dec 13 22:52:07 2004 UTC	trunk/magellan-initscripts/sbin/modules-update revision 1278 by niro, Thu May 12 16:03:35 2011 UTC
#	Line 1	Line 1
1	#!/bin/bash	#!/bin/bash
2		# vim:ts=4
3		# Distributed under the terms of the GNU General Public License v2
4	#	#
5	# This is the modules-update script for Debian GNU/Linux.	# This script will do:
6	# Written by Wichert Akkerman <wakkerma@debian.org>	#  - create /etc/modules.conf from /etc/modules.d/*
7	# Copyright (C) 1998, 1999 Software in the Public Interest	#  - create /etc/modprobe.conf from /etc/modprobe.d/*
8		#  - update modules.dep if modules.conf has been updated so depmod doesnt whine
9	# Modifications by Daniel Robbins <drobbins@gentoo.org>, Gentoo Technologies, Inc.	#
10	# 02 Sep 2001 -- Removed "arch" stuff since I see no reason to have support for varying	# This is all for backwards compatibility.  In the perfect world, we would be
11	# CPU architectures on a single system.	# running a linux-2.6 kernel and not have any modules.d directory.  Then there
12		# would be no work for us as module-init-tools automatically scans modprobe.d.
13	# More Modifications by Niels Rogalla <niro@magellan-linux.net> for Megallan Linux	# Until that happens, we'll keep scanning and warning and being a pita.
14	# Hacked some entries to fit into Magellan:	#
15	# functions.sh & kernel-2.5 stuff not needed
	# 06.09.2004 Added kernel 2.6 stuff <niro@magellan-linux.net>
	CFGFILE="/etc/modules.conf"
	TMPFILE="${CFGFILE}.$$"
	CFGFILE2="/etc/modprobe.conf"
	TMPFILE2="${CFGFILE2}.$$"
	CFGFILE3="/etc/modules.devfs"
	TMPFILE3="${CFGFILE3}.$$"
	CFGFILE4="/etc/modprobe.devfs"
	TMPFILE4="${CFGFILE4}.$$"
	MODDIR="/etc/modules.d"
	ARCHDIR="${MODDIR}/arch"
	HEADER="### This file is automatically generated by modules-update"
16
17	#source /sbin/functions.sh	MROOT="${MROOT%/}/"
18	source /etc/init.d/functions	[ "${MROOT}" = "${MROOT#/}" ] && MROOT="${PWD}/${MROOT}"
19		cd "${MROOT}"
20
21		argv0=${0##*/}
22		. /etc/init.d/functions || {
23		echo "${argv0}: Could not source /etc/init.d/functions!" 1>&2
24		exit 1
25		}
26		umask 022
27		esyslog() { :; }
28		export PATH=/sbin:${PATH}
29
30	KERNEL_2_5="no"	#
31		# Setup some variables
32		#
33
34	#if [ "$(get_KV)" -ge "$(KV_to_int '2.5.48')" ]	HEADER="### This file is automatically generated by modules-update"
35	#then	HEADER_OLD="### This file is automatically generated by update-modules"
36	# KERNEL_2_5="yes"	VERSION="1.5"
	#fi
37
38	#needed for kernel 2.6	#
39	if [ "$(kernel_major_version)" == "2.6" ]	# Parse command-line
40	then	#
41	KERNEL_2_5="yes"
42		VERBOSE=0
43		DEBUG=0
44		FORCE="false"
45		BACKUP="false"
46		KV=
47		while [ -n "$1" ] ; do
48		case $1 in
49		--assume-kernel=*) KV=${1#*=};;
50		-b|--backup)       BACKUP="true";;
51		-f|--force|force)  FORCE="true";;
52		-v|--verbose)      ((VERBOSE+=1));;
53		-d|--debug)        ((DEBUG+=1));;
54		-V|--version)      exec echo "${argv0}: ${VERSION}";;
55		-h|--help)
56		cat <<-EOF
57		Usage: modules-update [options]
58
59		Options:
60		--assume-kernel=KV  Assume the kernel is at least version KV
61		-b, --backup        Backup existing config files (add .old ext)
62		-f, --force         Force execution in face of bad things
63		-v, --verbose       Be a bit more verbose in what we do
64		-d, --debug         Helpful debug output
65		-V, --version       Dump version info
66		-h, --help          This help screen, duh
67		EOF
68		exit 0
69		;;
70		*)
71		echo "Error: I don't understand $1"
72		exit 1
73		;;
74		esac
75		shift
76		done
77
78		if [ ! -w ./etc ] ; then
79		echo "You must be root to do this"
80		exit 2
81	fi	fi
82
83		[ ${DEBUG} -gt 0 ] && set -x
84
85	set -e	veinfo() { [ ${VERBOSE} -gt 0 ] && echo "$*" ; return 0 ; }
86		vewarn() { [ ${VERBOSE} -gt 0 ] && echo "$*" ; return 0 ; }
87
88	# Reset the sorting order since we depend on it	[ "${MROOT}" != "/" ] && veinfo "Operating on MROOT = '${MROOT}'"
	export LC_COLLATE="C"
89
90	depdir() {	#
91	dep="`egrep '[[:space:]]*depfile' ${CFGFILE} | tail -n 1 | sed -e 's/depfile=//' -e 's,/[^/]*$,,'`"	# Let's check the optimal case first: nothing to do
92	if [ -z "${dep}" ]	#
93	then	if ! ${FORCE} ; then
94	dep="/lib/modules/$(uname -r)"	if [ ! -d "./etc/modules.d" ] ; then
95	fi	if [ ! -d "./etc/modprobe.d" ] ; then
96		veinfo "No /etc/modules.d or /etc/modprobe.d dir; Nothing to do!"
97		exit 0
98
99	echo "${dep}"	elif [ -e "./etc/modprobe.conf" ] ; then
100	}	vewarn "You should put settings in /etc/modprobe.d/ rather than modprobe.conf"
101
102	CFGFILES="${CFGFILE}"	elif [ -e "./etc/modules.conf" ] ; then
103		vewarn "If you only run linux-2.4, you should delete /etc/modules.conf"
104
105	if [ "${KERNEL_2_5}" = "yes" ]	else
106	then	veinfo "We have just /etc/modprobe.d; Nothing to do!"
107	CFGFILES="${CFGFILES} ${CFGFILE2} ${CFGFILE4}"	exit 0
108		fi
109		else
110		vewarn "You have /etc/modules.d, so things need to get coalesced"
111		fi
112	fi	fi
113
114	for x in ${CFGFILES}	#
115	do	# Build list of config files to generate and verify none
116	if [ -f "${x}" ]	# have been modified in any way
117	then	#
118	if ! sed -ne 1p "${x}" | egrep -q "^${HEADER}"	for x in modprobe.conf modules.conf ; do
119	then	x="./etc/${x}"
120	echo "Error: the current ${x} is not automatically generated."	[ -r ${x} ] || continue
121
122	if [ "$1" != "force" ]	_header="$(sed -ne 1p ${x})"
123	then	if [ "${_header}" != "${HEADER}" ] && [ "${_header}" != "${HEADER_OLD}" ]; then
124	echo "Use \"modules-update force\" to force (re)generation."	echo "Warning: ${x#.} has not been automatically generated"
125	exit 1
126	else	if ${FORCE} ; then
127	echo "force specified, (re)generating file anyway."	echo "--force specified, (re)generating file anyway"
128	fi	else
129		echo "Use \"modules-update force\" to force (re)generation"
130		exit 1
131	fi	fi
132	fi	fi
133	done	done
134
	if [ 0 -ne "`id -u`" ]
	then
	echo "You have to be root to do this."
	exit 2
	fi
135
136	if [ -e "${CFGFILE}" ]	#
137		# If the system doesnt have old modutils, then this is prob linux-2.6 only
138		#
139		if type -P modprobe.old > /dev/null || \
140		LC_ALL=C modprobe -V 2>/dev/null | grep -qs "modprobe version"
141	then	then
142	cp -f "${CFGFILE}" "${CFGFILE}".old	GENERATE_OLD="true"
143		else
144		GENERATE_OLD="false"
145	fi	fi
146	if [ "${KERNEL_2_5}" = "yes" ]
147	then
148	if [ -e "${CFGFILE2}" ]	# Reset the sorting order since we depend on it
149	then	export LC_COLLATE="C"
150	cp -f "${CFGFILE2}" "${CFGFILE2}".old
151	fi	KV=${KV:-$(uname -r)}
152	if [ -e "${CFGFILE4}" ]
153	then
154	cp -f "${CFGFILE4}" "${CFGFILE4}".old	#
155		#  Desc: backup a config file if need be and replace with new one
156		# Usage: backup <old config file to backup> <new config file to replace with>
157		#    Ex: backup /etc/modules.conf /etc/modules.conf.tempfile
158		#
159		backup() {
160		if ${BACKUP} && [ -e "$1" ] ; then
161		mv -f "$1" "$1".old
162	fi	fi
163	fi	mv -f "$2" "$1"
164		}
165
166
167		#
168		#  Desc: Create module header
169		# Usage: create_header <config dir>
170		#    Ex: create_header /etc/modules.d
171		create_header() {
172		local moddir=$1
173
174		cat <<-EOF
175		${HEADER}
176		#
177		# Please do not edit this file directly. If you want to change or add
178		# anything please take a look at the files in ${moddir} and read
179		# the manpage for modules-update(8).
180		#
181		EOF
182		}
183
184
	echo "${HEADER}" > "${TMPFILE}"
	cat <<EOF >> "${TMPFILE}"
185	#	#
186	# Please do not edit this file directly. If you want to change or add	#  Desc: Combine all config files in a dir and place output in a file
187	# anything please take a look at the files in ${MODDIR} and read	# Usage: generate_config <output config file> <config dir> <reference config dir> <silent>
188	# the manpage for modules-update.	#    Ex: generate_config /etc/modules.conf /etc/modules.d
189	#	#
190	EOF	generate_config() {
191	if [ -x /sbin/generate-modprobe.conf -a "${KERNEL_2_5}" = "yes" ]	local config=$1
192	then	local moddir=$2
193	sed -e "s:the files in ${MODDIR}:${CFGFILE}:" \	local refdir=$3
194	"${TMPFILE}" > "${TMPFILE2}"	local silent=$4
195		local tmpfile="${config}.$$"
196
197		[ -z "${silent}" ] && echo "Updating ${config#./etc/}"
198
199		create_header ${refdir:-${moddir}} > "${tmpfile}"
200
201		for cfg in "${moddir}"/* ; do
202		[ -d "${cfg}" ] && continue
203		[ ! -r "${cfg}" ] && continue
204
205		# Skip backup and RCS files #20597
206		case ${cfg} in *~|*.bak|*,v) continue;; esac
207
208		# If config file is found in the reference dir, then skip it
209		[ -n "${refdir}" ] && [ -e "${refdir}/${cfg##*/}" ] && continue
210
211		(
212		echo "### modules-update: start processing ${cfg#.}"
213		if [ -x "${cfg}" ] ; then
214		# $cfg can be executable; nice touch, Wichert! :)
215		"${cfg}"
216		else
217		cat "${cfg}"
218		fi
219		echo
220		echo "### modules-update: end processing ${cfg#.}"
221		echo
222		) >> "${tmpfile}"
223		done
224
225	if [ -f "${CFGFILE3}" ]	backup "${config}" "${tmpfile}"
226	then
227	sed -e "s:the files in ${MODDIR}:${CFGFILE3}:" \	return 0
228	"${TMPFILE}" > "${TMPFILE4}"	}
229	fi
230
231		#
232		# Generate the old modules.conf file based upon all the snippets in
233		# modules.d.  Since modprobe doesnt handle modules.d, we need to gather
234		# the files together in modules.conf for it.
235		#
236
237		if [ ! -d "./etc/modules.d" ] ; then
238		veinfo "No need to generate modules.conf :)"
239
240		elif ${FORCE} || is_older_than ./etc/modules.conf ./etc/modules.d ; then
241		generate_config ./etc/modules.conf ./etc/modules.d
242
243		else
244		veinfo "modules.conf: already up-to-date wheatness"
245	fi	fi
246
247	for cfg in "${MODDIR}"/* "${CONF}"	#
248	do	# Call depmod to keep insmod from complaining that modules.conf is more
249	[ -d "${cfg}" ] && continue	# recent then the modules.dep file.
250		#
251	[ ! -r "${cfg}" ] && continue	if [ -e "./etc/modules.conf" ] ; then
252		depfile=$(
253	[ -n "`echo "${cfg}" | awk '!/~$|\.bak$/ { print $0 }'`" ] || continue	# the modules.conf file has optional syntax:
254		# depfile=/path/to/modules.dep
255	echo "### modules-update: start processing ${cfg}" >> "${TMPFILE}"	ret=$(sed -n -e '/^[[:space:]]*depfile=/s:.*=::p' ./etc/modules.conf)
256		eval echo "${ret:-/lib/modules/${KV}/modules.dep}"
257	if [ -x ${cfg} ]	)
258	then
259	# $cfg can be executable; nice touch, Wichert! :)	if [ -d "${depfile%/*}" ] ; then
260	"${cfg}" >> "${TMPFILE}"	if [ ./etc/modules.conf -nt "${depfile}" ] ; then
261		arch=$(uname -m)
262		echo "Updating modules.dep"
263		for cfg in /lib/modules/${KV}/build /usr/src/linux-${KV} \
264		/lib/modules/${KV} /boot /usr/src/linux ""
265		do
266		cfg=".${cfg}/System.map"
267		for suffix in -genkernel-${arch}-${KV} -genkernel-'*'-${KV} -${KV} "" ; do
268		scfg=$(echo ${cfg}${suffix})
269		scfg=${scfg%% *}
270		[ -f "${scfg}" ] && cfg=${scfg} && break 2
271		done
272		cfg=""
273		done
274		[ -n "${cfg}" ] && cfg="-F ${cfg}"
275		depmod -b "${ROOT}" -a ${cfg} ${KV}
276		veinfo "Ran: depmod -b '${ROOT}' -a ${cfg} ${KV}"
277		else
278		veinfo "modules.dep: already up-to-date goodness"
279		fi
280	else	else
281	cat "${cfg}" >> "${TMPFILE}"	vewarn "The dir '${depfile}' does not exist, skipping call to depmod"
282	fi	fi
283		fi
	echo >> "${TMPFILE}"
	echo "### modules-update: end processing ${cfg}" >> "${TMPFILE}"
	echo >> "${TMPFILE}"
	done
284
	mv -f "${TMPFILE}" "${CFGFILE}"
285
286	if [ -x /sbin/generate-modprobe.conf -a "${KERNEL_2_5}" = "yes" ]	#
287	then	# Generate the new modprobe.conf file if possible.  What this entails is
288	if /sbin/generate-modprobe.conf >> "${TMPFILE2}" 2> /dev/null	# grabbing details from the old modprobe via the -c option and sticking
289	then	# it in the newer config file.  This is useful for backwards compat support
290	mv -f "${TMPFILE2}" "${CFGFILE2}"	# and for packages that provide older style /etc/modules.d/ files but not
291	else	# newer style /etc/modprobe.d/ files.
292	echo "Warning: could not generate ${CFGFILE2}!"	#
293	rm -f "${TMPFILE2}"	# First we try to use the script `generate-modprobe.conf` from the
294	fi	# module-init-tools and if that fails us, we try and generate modprobe.conf
295		# ourselves from the /etc/modules.d/ files.
296		#
297		if ! type -P generate-modprobe.conf > /dev/null ; then
298		vewarn "Skipping /etc/modprobe.conf generation (generate-modprobe.conf doesn't exist)"
299
300		elif ! ${FORCE} && ! is_older_than ./etc/modprobe.conf ./etc/modules.d ./etc/modprobe.d ; then
301		veinfo "modprobe.conf: already up-to-date nutness"
302
303		elif [ ! -e ./etc/modules.conf -a ! -e ./etc/modules.d ] ; then
304		veinfo "No need to generate modprobe.conf :)"
305		rm -f ./etc/modprobe.conf
306
307		else
308		#
309		# First, bitch like crazy
310		#
311		for f in ./etc/modules.d/* ; do
312		# hack: ignore baselayout ;x
313		case ${f##*/} in
314		aliases|i386) continue;;
315		esac
316		[ -e "${f}" ] || continue
317		if [ ! -e "./etc/modprobe.d/${f##*/}" ] ; then
318		echo "Please file a bug about ${f#.}: it needs an /etc/modprobe.d/${f##*/}"
319		fi
320		done
321
322		generated_ok=0
323		tmpfile="./etc/modprobe.conf.$$"
324
325	if [ -f "${CFGFILE3}" ]	#
326	then	# First we try to use regular generate-modprobe.conf
327	gawk '$0 !~ /^[[:space:]]*include/ { print $0 }' "${CFGFILE3}" > "${TMPFILE3}"	#
328		if ${GENERATE_OLD} ; then
329	export TESTING_MODPROBE_CONF="${TMPFILE3}"	echo "Updating modprobe.conf"
330	if /sbin/generate-modprobe.conf >> "${TMPFILE4}" 2> /dev/null	create_header /etc/modprobe.d > "${tmpfile}"
331		if generate-modprobe.conf ${ASSUME_KV:+--assume-kernel=${KV}} \
332		>> "${tmpfile}" 2> "${tmpfile}.err"
333	then	then
334	mv -f "${TMPFILE4}" "${CFGFILE4}"	backup "./etc/modprobe.conf" "${tmpfile}"
335		generated_ok=1
336		else
337		[[ ${VERBOSE} -gt 0 ]] && cat "${tmpfile}.err"
338		echo "Warning: could not generate /etc/modprobe.conf!"
339		fi
340		fi
341
342	echo >> "${CFGFILE4}"	#
343	echo "include /etc/modprobe.conf" >> "${CFGFILE4}"	# If the helper script failed, we fall back to doing it by hand
344		#
345		if [[ ${generated_ok} -eq 0 ]] ; then
346		echo "Updating modprobe.conf by hand"
347
348		generate_config ./etc/modprobe.conf ./etc/modules.d ./etc/modprobe.d 0
349		create_header /etc/modprobe.d > "${tmpfile}"
350
351		# Just use generate-modprobe.conf to filter compatible syntax
352		if TESTING_MODPROBE_CONF=./etc/modprobe.conf \
353		generate-modprobe.conf ${ASSUME_KV:+--assume-kernel=${KV}} \
354		>> "${tmpfile}" 2> "${tmpfile}.err"
355		then
356		# we use mv here instead of backup_config() as the call to
357		# generate_config() above already took care of the backup
358		mv -f "${tmpfile}" "./etc/modprobe.conf"
359	else	else
360	echo "Warning: could not generate ${CFGFILE4}!"	[[ ${VERBOSE} -gt 0 ]] && cat "${tmpfile}.err"
361	rm -f "${TMPFILE4}"	echo "Warning: could not generate /etc/modprobe.conf!"
362	fi	fi
	rm -f "${TMPFILE3}"
363	fi	fi
	fi
364
365	# We also call depmod here to stop insmod from complaining that modules.conf	#
366	# is more recent then modules.dep	# Now append all the new files ... modprobe will not scan /etc/modprobe.d/
367	#	# if /etc/modprobe.conf exists, so we need to append /etc/modprobe.conf with
368	if [ -d "`depdir`" -a -f /proc/modules ]	# /etc/modprobe.d/* ... http://bugs.gentoo.org/145962
369	then	#
370	depmod -a	if [[ -e ./etc/modprobe.conf ]] ; then
371	fi	for cfg in ./etc/modprobe.d/* ; do
372		[ -d "${cfg}" ] && continue
373		[ ! -r "${cfg}" ] && continue
374
375		# Skip backup and RCS files #20597
376		case ${cfg} in *~|*.bak|*,v) continue;; esac
377
378		(
379		echo
380		echo "### modules-update: start processing ${cfg#.}"
381		cat "${cfg}"
382		echo "### modules-update: end processing ${cfg#.}"
383		) >> "./etc/modprobe.conf"
384		done
385		fi
386
387		rm -f "${tmpfile}" "${tmpfile}.err"
388		fi
389
390	# vim:ts=4	: # make sure we fall through with 0 exit status

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