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

Parent Directory | Revision Log | Patch

	revision 697 by niro, Fri Oct 21 15:24:54 2005 UTC	revision 698 by niro, Tue Mar 25 21:41:22 2008 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 script will do:
6		#  - create /etc/modules.conf from /etc/modules.d/*
7		#  - create /etc/modprobe.conf from /etc/modprobe.d/*
8		#  - update modules.dep if modules.conf has been updated so depmod doesnt whine
9	#	#
10	# This is the modules-update script for Debian GNU/Linux.	# This is all for backwards compatibility.  In the perfect world, we would be
11	# Written by Wichert Akkerman <wakkerma@debian.org>	# running a linux-2.6 kernel and not have any modules.d directory.  Then there
12	# Copyright (C) 1998, 1999 Software in the Public Interest	# would be no work for us as module-init-tools automatically scans modprobe.d.
13	#	# Until that happens, we'll keep scanning and warning and being a pita.
	# Modifications by Daniel Robbins <drobbins@gentoo.org>, Gentoo Foundation
	# 02 Sep 2001 -- Removed "arch" stuff since I see no reason to have
	# support for varying CPU architectures on a single system.
14	#	#
	# Updated by Aron Griffis <agriffis@gentoo.org>
	# 05 May 2004 -- handle --assume-kernel argument for livecd building
15
	if [[ 0 -ne $(id -u) ]] ; then
	echo "You have to be root to do this."
	exit 2
	fi
16
17	CFGFILE="/etc/modules.conf"	MROOT="${MROOT%/}/"
18	TMPFILE="${CFGFILE}.$$"	[ "${MROOT}" = "${MROOT#/}" ] && MROOT="${PWD}/${MROOT}"
19	CFGFILE2="/etc/modprobe.conf"	cd "${MROOT}"
20	TMPFILE2="${CFGFILE2}.$$"
21	TMPFILE2B="${CFGFILE2}B.$$"	argv0=${0##*/}
22	CFGFILE3="/etc/modules.devfs"	. /etc/init.d/functions || {
23	TMPFILE3="${CFGFILE3}.$$"	echo "${argv0}: Could not source /etc/init.d/functions!" 1>&2
24	CFGFILE4="/etc/modprobe.devfs"	exit 1
25	TMPFILE4="${CFGFILE4}.$$"	}
26	MODDIR="/etc/modules.d"	umask 022
27	ARCHDIR="${MODDIR}/arch"	esyslog() { :; }
28	HEADER="### This file is automatically generated by modules-update"	export PATH=/sbin:${PATH}
29	FULLHEADER="${HEADER}
30	#	#
31	# Please do not edit this file directly. If you want to change or add	# Setup some variables
	# anything please take a look at the files in ${MODDIR} and read
	# the manpage for modules-update(8).
32	#	#
	"
33
34	source /etc/init.d/functions	HEADER="### This file is automatically generated by update-modules"
35
36		#
37	# Parse command-line	# Parse command-line
38	FORCE=false	#
39	ASSUME_KV=
40	while [[ -n $1 ]] ; do	VERBOSE=0
41	case "$1" in	DEBUG=0
42	force)	FORCE="false"
43	FORCE=true ;;	BACKUP="false"
44	--assume-kernel=*)	KV=
45	ASSUME_KV=${1#*=} ;;	while [ -n "$1" ] ; do
46		case $1 in
47		--assume-kernel=*) KV=${1#*=};;
48		-b|--backup)       BACKUP="true";;
49		-f|--force|force)  FORCE="true";;
50		-v|--verbose)      ((VERBOSE+=1));;
51		-d|--debug)        ((DEBUG+=1));;
52		-V|--version)      exec echo "${argv0}$Revision: 1.4 $ $Date: 2008-03-25 21:41:22 $";;
53		-h|--help)
54		cat <<-EOF
55		Usage: update-modules [options]
56
57		Options:
58		--assume-kernel=KV  Assume the kernel is at least version KV
59		-b, --backup        Backup existing config files (add .old ext)
60		-f, --force         Force execution in face of bad things
61		-v, --verbose       Be a bit more verbose in what we do
62		-d, --debug         Helpful debug output
63		-V, --version       Dump version info
64		-h, --help          This help screen, duh
65		EOF
66		exit 0
67		;;
68	*)	*)
69	echo "Error: I don't understand $1"	echo "Error: I don't understand $1"
70	exit 1 ;;	exit 1
71		;;
72	esac	esac
73	shift	shift
74	done	done
75
76	# Set kernel version, either from --assume-kernel or uname -r	if [ ! -w ./etc ] ; then
77	KV=${ASSUME_KV:-$(uname -r)}	echo "You must be root to do this"
78		exit 2
79		fi
80
81		[ ${DEBUG} -gt 0 ] && set -x
82
83		veinfo() { [ ${VERBOSE} -gt 0 ] && echo "$*" ; return 0 ; }
84		vewarn() { [ ${VERBOSE} -gt 0 ] && echo "$*" ; return 0 ; }
85
86		[ "${MROOT}" != "/" ] && veinfo "Operating on MROOT = '${MROOT}'"
87
88		#
89		# Let's check the optimal case first: nothing to do
90		#
91		if ! ${FORCE} ; then
92		if [ ! -d "./etc/modules.d" ] ; then
93		if [ ! -d "./etc/modprobe.d" ] ; then
94		veinfo "No /etc/modules.d or /etc/modprobe.d dir; Nothing to do!"
95		exit 0
96
97		elif [ -e "./etc/modprobe.conf" ] ; then
98		vewarn "You should put settings in /etc/modprobe.d/ rather than modprobe.conf"
99
100		elif [ -e "./etc/modules.conf" ] ; then
101		vewarn "If you only run linux-2.4, you should delete /etc/modules.conf"
102
103		else
104		veinfo "We have just /etc/modprobe.d; Nothing to do!"
105		exit 0
106		fi
107		else
108		vewarn "You have /etc/modules.d, so things need to get coalesced"
109		fi
110		fi
111
112		#
113		# Build list of config files to generate and verify none
114		# have been modified in any way
115		#
116		for x in modprobe.conf modules.conf ; do
117		x="./etc/${x}"
118		[ -r ${x} ] || continue
119
120		if [ "$(sed -ne 1p ${x})" != "${HEADER}" ] ; then
121		echo "Warning: ${x#.} has not been automatically generated"
122
123		if ${FORCE} ; then
124		echo "--force specified, (re)generating file anyway"
125		else
126		echo "Use \"update-modules force\" to force (re)generation"
127		exit 1
128		fi
129		fi
130		done
131
132
133	# needed for kernel 2.6	#
134	if [[ $(kernel_major_version) = 2.6 ]]	# If the system doesnt have old modutils, then this is prob linux-2.6 only
135		#
136		if type -P modprobe.old > /dev/null || \
137		LC_ALL=C modprobe -V 2>/dev/null | grep -qs "modprobe version"
138	then	then
139	KERNEL_2_6=true	GENERATE_OLD="true"
140	else	else
141	KERNEL_2_6=false	GENERATE_OLD="false"
142	fi	fi
143
	# Check if $CONF is valid
	[[ ! -r ${CONF} ]] && CONF=
	set -e
144
145	# Reset the sorting order since we depend on it	# Reset the sorting order since we depend on it
146	export LC_COLLATE="C"	export LC_COLLATE="C"
147
148	depdir() {	KV=${KV:-$(uname -r)}
	dep=$(egrep '[[:space:]]*depfile' ${CFGFILE} 2> /dev/null | tail -n 1 | sed -e 's/depfile=//' -e 's,/[^/]*$,,')
	[[ -z ${dep} ]] && dep="/lib/modules/${KV}"
	echo "${dep}"
	}
149
150	CFGFILES=${CFGFILE}
151	if ${KERNEL_2_6} ; then	#
152	CFGFILES="${CFGFILES} ${CFGFILE2}"	#  Desc: backup a config file if need be and replace with new one
153	[[ -d /etc/devfs.d ]] && CFGFILES="${CFGFILES} ${CFGFILE4}"	# Usage: backup <old config file to backup> <new config file to replace with>
154	fi	#    Ex: backup /etc/modules.conf /etc/modules.conf.tempfile
155		#
156	for x in ${CFGFILES} ; do	backup() {
157	if [[ -f ${x} ]] ; then	if ${BACKUP} && [ -e "$1" ] ; then
158	if ! sed -ne 1p "${x}" | egrep -q "^${HEADER}" ; then	mv -f "$1" "$1".old
	# Do not bother if its modutils config file, and we
	# have a 2.6 kernel without modprobe.old
	[[ ${x} == "${CFGFILE}" ]] && ${KERNEL_2_6} && \
	! type -p modprobe.old > /dev/null && \
	continue
	echo "Error: the current ${x} is not automatically generated."
	if $FORCE ; then
	echo "force specified, (re)generating file anyway."
	else
	echo "Use \"modules-update force\" to force (re)generation."
	exit 1
	fi
	fi
159	fi	fi
160	done	mv -f "$2" "$1"
161		}
162
163
164		#
165		#  Desc: Create module header
166		# Usage: create_header <config dir>
167		#    Ex: create_header /etc/modules.d
168		create_header() {
169		local moddir=$1
170
171		cat <<-EOF
172		${HEADER}
173		#
174		# Please do not edit this file directly. If you want to change or add
175		# anything please take a look at the files in ${moddir} and read
176		# the manpage for update-modules(8).
177		#
178		EOF
179		}
180
181
182		#
183		#  Desc: Combine all config files in a dir and place output in a file
184		# Usage: generate_config <output config file> <config dir> <reference config dir> <silent>
185		#    Ex: generate_config /etc/modules.conf /etc/modules.d
186		#
187	generate_config() {	generate_config() {
188	local cfg=	local config=$1
189	local conf="$1"	local moddir=$2
190	local moddir="$2"	local refdir=$3
191	local tmpfile="$3"	local silent=$4
192	local do_mprobe="$4"	local tmpfile="${config}.$$"
193
194	for cfg in "${moddir}"/* "${conf}" ; do	[ -z "${silent}" ] && echo "Updating ${config#./etc/}"
	[[ -d ${cfg} ]] && continue
195
196	[[ ! -r ${cfg} ]] && continue	create_header ${refdir:-${moddir}} > "${tmpfile}"
197
198	# Skip backup and RCS files; fixes bug 20597 (07 May 2004 agriffis)	for cfg in "${moddir}"/* ; do
199	[[ ${cfg} == *~ || ${cfg} == *.bak || ${cfg} == *,v ]] && continue	[ -d "${cfg}" ] && continue
200		[ ! -r "${cfg}" ] && continue
201
202	[[ ${do_mprobe} -eq 1 && -e "/etc/modprobe.d/${cfg##*/}" ]] && continue	# Skip backup and RCS files #20597
203		case ${cfg} in *~|*.bak|*,v) continue;; esac
204
205	echo "### modules-update: start processing ${cfg}" >> "${tmpfile}"	# If config file is found in the reference dir, then skip it
206		[ -n "${refdir}" ] && [ -e "${refdir}/${cfg##*/}" ] && continue
207
208	if [[ -x ${cfg} ]] ; then	(
209		echo "### update-modules: start processing ${cfg#.}"
210		if [ -x "${cfg}" ] ; then
211	# $cfg can be executable; nice touch, Wichert! :)	# $cfg can be executable; nice touch, Wichert! :)
212	"${cfg}" >> "${tmpfile}"	"${cfg}"
213	else	else
214	cat "${cfg}" >> "${tmpfile}"	cat "${cfg}"
215	fi	fi
216		echo
217	echo >> "${tmpfile}"	echo "### update-modules: end processing ${cfg#.}"
218	echo "### modules-update: end processing ${cfg}" >> "${tmpfile}"	echo
219	echo >> "${tmpfile}"	) >> "${tmpfile}"
220	done	done
221
222		backup "${config}" "${tmpfile}"
223
224	return 0	return 0
225	}	}
226
227	if type -p modprobe.old > /dev/null ; then
228	if ${FORCE} || is_older_than ${CFGFILE} ${MODDIR} || \	#
229	[[ ! -e ${CFGFILE} ]] ; then	# Generate the old modules.conf file based upon all the snippets in
230	echo "Updating ${CFGFILE}"	# modules.d.  Since modprobe doesnt handle modules.d, we need to gather
231	echo "${FULLHEADER}" > "${TMPFILE}"	# the files together in modules.conf for it.
232	generate_config "${CONF}" "${MODDIR}" "${TMPFILE}" 0	#
233	[[ -e ${CFGFILE} ]] && mv -f "${CFGFILE}" "${CFGFILE}.old"
234	mv -f "${TMPFILE}" "${CFGFILE}"	if [ ! -d "./etc/modules.d" ] ; then
235		veinfo "No need to generate modules.conf :)"
236
237		elif ${FORCE} || is_older_than ./etc/modules.conf ./etc/modules.d ; then
238		generate_config ./etc/modules.conf ./etc/modules.d
239
240		else
241		veinfo "modules.conf: already up-to-date wheatness"
242		fi
243
244		#
245		# Call depmod to keep insmod from complaining that modules.conf is more
246		# recent then the modules.dep file.
247		#
248		if [ -e "./etc/modules.conf" ] ; then
249		depfile=$(
250		# the modules.conf file has optional syntax:
251		# depfile=/path/to/modules.dep
252		ret=$(sed -n -e '/^[[:space:]]*depfile=/s:.*=::p' ./etc/modules.conf)
253		eval echo "${ret:-/lib/modules/${KV}/modules.dep}"
254		)
255
256		if [ -d "${depfile%/*}" ] ; then
257		if [ ./etc/modules.conf -nt "${depfile}" ] ; then
258		arch=$(uname -m)
259		echo "Updating modules.dep"
260		for cfg in /lib/modules/${KV}/build /usr/src/linux-${KV} \
261		/lib/modules/${KV} /boot /usr/src/linux ""
262		do
263		cfg=".${cfg}/System.map"
264		for suffix in -genkernel-${arch}-${KV} -genkernel-'*'-${KV} -${KV} "" ; do
265		scfg=$(echo ${cfg}${suffix})
266		scfg=${scfg%% *}
267		[ -f "${scfg}" ] && cfg=${scfg} && break 2
268		done
269		cfg=""
270		done
271		[ -n "${cfg}" ] && cfg="-F ${cfg}"
272		depmod -b "${ROOT}" -a ${cfg} ${KV}
273		veinfo "Ran: depmod -b '${ROOT}' -a ${cfg} ${KV}"
274		else
275		veinfo "modules.dep: already up-to-date goodness"
276		fi
277		else
278		vewarn "The dir '${depfile}' does not exist, skipping call to depmod"
279	fi	fi
280	fi	fi
281
282	if ${FORCE} || is_older_than ${CFGFILE2} ${MODDIR} || [[ ! -e ${CFGFILE2} ]]; then
283	if [[ -x /sbin/generate-modprobe.conf ]] && ${KERNEL_2_6} ; then	#
284	# Make sure that generate-modprobe.conf can handle --assume-kernel	# Generate the new modprobe.conf file if possible.  What this entails is
285	# if we were called with it.	# grabbing details from the old modprobe via the -c option and sticking
286	if [[ -n ${ASSUME_KV} ]] && \	# it in the newer config file.  This is useful for backwards compat support
287	! grep -qe --assume-kernel /sbin/generate-modprobe.conf	# and for packages that provide older style /etc/modules.d/ files but not
288	then	# newer style /etc/modprobe.d/ files.
289	echo "Error: modules-update called with --assume-kernel flag, but"	#
290	echo "generate-modprobe.conf doesn't understand it.  You need to"	# First we try to use the script `generate-modprobe.conf` from the
291	echo "install >= module-init-tools-3.0-r5"	# module-init-tools and if that fails us, we try and generate modprobe.conf
292	exit 3	# ourselves from the /etc/modules.d/ files.
293	fi	#
294		if ! type -P generate-modprobe.conf > /dev/null ; then
295	echo "Updating ${CFGFILE2}"	vewarn "Skipping /etc/modprobe.conf generation (generate-modprobe.conf doesn't exist)"
296	echo "${FULLHEADER/modules.d/modprobe.d}" > "${TMPFILE2}"
297	if /sbin/generate-modprobe.conf ${ASSUME_KV:+--assume-kernel=${KV}} \	elif ! ${FORCE} && ! is_older_than ./etc/modprobe.conf ./etc/modules.d ./etc/modprobe.d ; then
298	>> "${TMPFILE2}" 2>/dev/null	veinfo "modprobe.conf: already up-to-date nutness"
299
300		else
301		#
302		# First, bitch like crazy
303		#
304		for f in ./etc/modules.d/* ; do
305		# hack: ignore baselayout ;x
306		case ${f##*/} in
307		aliases|i386) continue;;
308		esac
309		[ -e "${f}" ] || continue
310		if [ ! -e "./etc/modprobe.d/${f##*/}" ] ; then
311		echo "Please file a bug about ${f#.}: it needs an /etc/modprobe.d/${f##*/}"
312		fi
313		done
314
315		generated_ok=0
316		tmpfile="./etc/modprobe.conf.$$"
317
318		#
319		# First we try to use regular generate-modprobe.conf
320		#
321		if ${GENERATE_OLD} ; then
322		echo "Updating modprobe.conf"
323		create_header /etc/modprobe.d > "${tmpfile}"
324		if generate-modprobe.conf ${ASSUME_KV:+--assume-kernel=${KV}} \
325		>> "${tmpfile}" 2> "${tmpfile}.err"
326	then	then
327	[[ -e ${CFGFILE2} ]] && mv -f "${CFGFILE2}" "${CFGFILE2}.old"	backup "./etc/modprobe.conf" "${tmpfile}"
328	mv -f "${TMPFILE2}" "${CFGFILE2}"	generated_ok=1
329	else	else
330	#	[[ ${VERBOSE} -gt 0 ]] && cat "${tmpfile}.err"
331	# If we made it here, it means either generate-modprobe.conf	echo "Warning: could not generate /etc/modprobe.conf!"
	# bombed on us, or the user doesn't have modutils installed.
	# If the latter is true, then we should generate modprobe.conf
	# ourselves with any old files laying around in /etc/modules.d.
	#
	rm -f "${TMPFILE2}"
	if type -p modprobe.old > /dev/null ; then
	echo "Warning: could not generate ${CFGFILE2}!"
	else
	echo "${FULLHEADER/modules.d/modprobe.d}" > "${TMPFILE2B}"
	generate_config "${CONF}" "${MODDIR}" "${TMPFILE2}" 1
	export TESTING_MODPROBE_CONF="${TMPFILE2}"
	if /sbin/generate-modprobe.conf ${ASSUME_KV:+--assume-kernel=${KV}} \
	>> "${TMPFILE2B}" 2> /dev/null
	then
	[[ -e ${CFGFILE2} ]] && mv -f "${CFGFILE2}" "${CFGFILE2}.old"
	mv -f "${TMPFILE2B}" "${CFGFILE2}"
	else
	echo "Warning: could not generate ${CFGFILE2}!"
	rm -f "${TMPFILE2B}"
	fi
	rm -f "${TMPFILE2}"
	fi
	fi
	if [[ -f ${CFGFILE3} ]] ; then
	echo "Updating ${CFGFILE4}"
	gawk '$0 !~ /^[[:space:]]*include/ { print $0 }' "${CFGFILE3}" \
	> "${TMPFILE3}"
	echo "${FULLHEADER/modules.d/modprobe.d}" > "${TMPFILE4}"
	export TESTING_MODPROBE_CONF="${TMPFILE3}"
	if /sbin/generate-modprobe.conf ${ASSUME_KV:+--assume-kernel=${KV}} \
	>> "${TMPFILE4}" 2> /dev/null
	then
	[[ -e ${CFGFILE4} ]] && mv -f "${CFGFILE4}" "${CFGFILE4}.old"
	mv -f "${TMPFILE4}" "${CFGFILE4}"
	echo >> "${CFGFILE4}"
	echo "include /etc/modprobe.conf" >> "${CFGFILE4}"
	else
	echo "Warning: could not generate ${CFGFILE4}!"
	rm -f "${TMPFILE4}"
	fi
	rm -f "${TMPFILE3}"
332	fi	fi
333	fi	fi
	fi
334
335	# We also call depmod here to stop insmod from complaining that modules.conf	#
336	# is more recent then modules.dep	# If the helper script failed, we fall back to doing it by hand
337	if [[ ${CFGFILE2} -nt /lib/modules/${KV}/modules.dep ]] ; then	#
338	if [[ -d $(depdir) && -f /proc/modules ]] ; then	if [[ ${generated_ok} -eq 0 ]] ; then
339	if [[ -f /usr/src/linux/System.map ]] ; then	echo "Updating modprobe.conf by hand"
340	depmod -a -F /usr/src/linux/System.map ${KV}
341		generate_config ./etc/modprobe.conf ./etc/modules.d ./etc/modprobe.d 0
342		create_header /etc/modprobe.d > "${tmpfile}"
343
344		# Just use generate-modprobe.conf to filter compatible syntax
345		if TESTING_MODPROBE_CONF=./etc/modprobe.conf \
346		generate-modprobe.conf ${ASSUME_KV:+--assume-kernel=${KV}} \
347		>> "${tmpfile}" 2> "${tmpfile}.err"
348		then
349		# we use mv here instead of backup_config() as the call to
350		# generate_config() above already took care of the backup
351		mv -f "${tmpfile}" "./etc/modprobe.conf"
352	else	else
353	depmod -a ${KV}	[[ ${VERBOSE} -gt 0 ]] && cat "${tmpfile}.err"
354		echo "Warning: could not generate /etc/modprobe.conf!"
355	fi	fi
356	fi	fi
	fi
357
358		#
359		# Now append all the new files ... modprobe will not scan /etc/modprobe.d/
360		# if /etc/modprobe.conf exists, so we need to append /etc/modprobe.conf with
361		# /etc/modprobe.d/* ... http://bugs.gentoo.org/145962
362		#
363		if [[ -e ./etc/modprobe.conf ]] ; then
364		for cfg in ./etc/modprobe.d/* ; do
365		[ -d "${cfg}" ] && continue
366		[ ! -r "${cfg}" ] && continue
367
368		# Skip backup and RCS files #20597
369		case ${cfg} in *~|*.bak|*,v) continue;; esac
370
371		(
372		echo
373		echo "### update-modules: start processing ${cfg#.}"
374		cat "${cfg}"
375		echo "### update-modules: end processing ${cfg#.}"
376		) >> "./etc/modprobe.conf"
377		done
378		fi
379
380	# vim:ts=4	rm -f "${tmpfile}" "${tmpfile}.err"
381		fi
382
383		: # make sure we fall through with 0 exit status

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