~ubuntu-core-dev/module-init-tools/ubuntu

#! /bin/sh -e

# Naive shell script to translate modules.conf + defaults to modprobe.conf

# Normal caveats apply, as with any machine translation.

usage() {

	cat <<-EOF

		Usage: $0 [--assume-kernel=n.n.n] [--stdin] [modprobe.conf]

		   Converts your current modules setup to modprobe.conf.

		   Don't trust it too much.

		 Version 0.1

	EOF

	exit ${1:-1}

}

KV=$(uname -r)

STDIN=

while [ -n "$1" ] ; do

	case $1 in

	--assume-kernel)   KV=$2; shift;;

	--assume-kernel=*) KV=${1#*=};;

	--stdin)           STDIN=1;;

	-h|--help)         usage 0;;

	*)                 break;;

	esac

	shift

done

# Set up output if specified.

if [ $# -eq 1 ] ; then

	exec > $1

else

	usage 1

fi

MODPROBECONF=`mktemp /tmp/modprobe.XXXXXX || tempfile || echo /tmp/modprobe.$$`

trap "rm -f $MODPROBECONF" 0

modprobe_abort()

{

    echo Failed to to run modprobe.  Giving up. 1>&2

    exit 1

}

if [ x"$TESTING_MODPROBE_CONF" != x ]; then

    cp $TESTING_MODPROBE_CONF $MODPROBECONF

elif [ "$STDIN" = "1" ]; then

    cat > $MODPROBECONF

elif [ -x /sbin/modprobe.old ]; then

    # In sbin.

    /sbin/modprobe.old -c > $MODPROBECONF || modprobe_abort

elif modprobe.old -c >/dev/null 2>&1; then

    # Somewhere in path.

    modprobe.old -c > $MODPROBECONF || modprobe_abort

elif /sbin/modprobe -V 2>/dev/null | grep -q 'modprobe version'; then

    # Running /sbin/modprobe gives old version.

    /sbin/modprobe -c > $MODPROBECONF || modprobe_abort

elif modprobe -V 2>/dev/null | grep -q 'modprobe version'; then

    # Running modprobe gives old version.

    modprobe -c > $MODPROBECONF || modprobe_abort

else

    echo Cannot find old version of modprobe.  Giving up. 2>&1

    exit 1

fi

# Resolve (possibly recursive) alias: args filename alias

resolve_alias()

{

    RA_RESOLVE=`grep "^alias[ 	][ 	]*$2[ 	]" -- $1 | awk '{ print $3 }'`

    if [ x"$RA_RESOLVE" = x ]; then

	echo $2

	return

    fi

    # Recurse.

    (resolve_alias $1 "$RA_RESOLVE")

}

# Parse alias: args filename modulename aliasto.

parse_alias()

{

    PA_ALIAS=`resolve_alias $1 $3`

    NAME=`echo $2|sed -e 's/\(block\|char\)-major-\([0-9]\+\)$/\1-major-\2-*/'`

    echo "alias $NAME $PA_ALIAS"

}

# Parse options: args modulename aliasto.

parse_options()

{

    # Second arg can be null if grab_noninstall options returns empty.

    [ x"$2" = x ] || echo "options $1 $2"

}

# Separate out the modprobe options from the module options

grab_install_options()

{

    GRAB_OPTS=""

    GRAB_NEXT=0

    for grab_i; do

	case "$grab_i" in

	-o) GRAB_OPTS="$GRAB_OPTS -o"; GRAB_NEXT=1;;

	-*) echo Warning: Ignoring unknown alias option "$grab_i" >&2;;

	*)

	    [ $GRAB_NEXT = 0 ] || GRAB_OPTS="$GRAB_OPTS $grab_i"

	    GRAB_NEXT=0

	    ;;

	esac

    done

    echo "$GRAB_OPTS"

}

grab_noninstall_options()

{

    GRAB_OPTS=""

    GRAB_NEXT=0

    for grab_i; do

	case "$grab_i" in

	-o) GRAB_NEXT=1;;

	-*) ;;

	*)

	    [ $GRAB_NEXT = 1 ] || GRAB_OPTS="$GRAB_OPTS $grab_i"

	    GRAB_NEXT=0

	    ;;

	esac

    done

    echo "$GRAB_OPTS"

}

# Produce a multiple install/remove commands. Args: list, command, separator.

multi()

{

    mp_res=""

    for mp_arg in $1; do

	if [ x"$mp_res" = x ]; then mp_res="/sbin/$2 $mp_arg";

	else mp_res="$mp_res${3}/sbin/$2 $mp_arg";

	fi

    done

    echo "$mp_res"

}

# Install and remove commands frequently refer to insmod and rmmod.

# Use "modprobe --ignore-install " and "modprobe -r --ignore-remove" since 

# our versions of rmmod and insmod are deliberately stupid.

convert_command()

{

    echo "$@" | sed -e 's,insmod,/sbin/modprobe --ignore-install,' -e 's,rmmod,/sbin/modprobe -r --ignore-remove,'

}

while read ADD NAME MODULE REST; do

    # Ignore a spurious add, otherwise move them down.

    if [ x"$ADD" = x"add" ]; then :; else

	REST="`echo $MODULE $REST | sed 's/ *$//'`"

	MODULE="$NAME"

	NAME="$ADD";

    fi

    #echo "NAME=$NAME MODULE=$MODULE REST=$REST" >&2

    # MODNAME is the converted name for use in variables.

    MODNAME=`echo $MODULE | tr -c A-Za-z_0-9 _`

    case "$NAME" in

    '#'*) : ;; # Comment 

    '') : ;;   # Blank line

    keep) # Do nothing.

	;;

    alias)

	if [ x"$REST" = xoff ] || [ x"$REST" = xnull ]; then

	    INSTALL_COMMANDS="$INSTALL_COMMANDS $MODULE"

	    eval install_$MODNAME=\"/bin/true\"

	else

	    parse_alias $MODPROBECONF "$MODULE" $REST

	fi

	;;

    options) 

	# Options used to be able to contain extra args to insmod

	# (eg. -o foo).  Not any more.

	case " $REST" in

	*' '-[-a-z]*)

	    parse_options $MODULE `grab_noninstall_options $REST`

	    INSTALL_OPTIONS=`grab_install_options $REST`

	    INSTALL_COMMANDS="$INSTALL_COMMANDS $MODULE"

	    eval install_$MODNAME=\"/sbin/modprobe $INSTALL_OPTIONS --ignore-install `resolve_alias $MODPROBECONF $MODULE`\"

	    ;;

	*)

	    parse_options $MODULE "$REST"

	    ;;

	esac

	;;

    above)

	# Pull in these modules after me.

	INSTALL_COMMANDS="$INSTALL_COMMANDS $MODULE"

	eval post_install_$MODNAME=\"`multi "$REST" 'modprobe' '; '`\; /bin/true\"

	REMOVE_COMMANDS="$REMOVE_COMMANDS $MODULE"

	eval pre_remove_$MODNAME=\"`multi "$REST" 'modprobe -r' '; '`\"

	;;

    below)

	# Pull in these modules before me.

	INSTALL_COMMANDS="$INSTALL_COMMANDS $MODULE"

	eval pre_install_$MODNAME=\"`multi "$REST" 'modprobe' '; '`\"

	REMOVE_COMMANDS="$REMOVE_COMMANDS $MODULE"

	eval post_remove_$MODNAME=\"`multi "$REST" 'modprobe -r' '; '`\; /bin/true\"

	;;

    probe) 

	INSTALL_COMMANDS="$INSTALL_COMMANDS $MODULE"

	eval install_$MODNAME=\"`multi "$REST" 'modprobe' ' || '`\"

	;;

    probeall)

	# Not quite correct.  If they all fail, we should fail.

	INSTALL_COMMANDS="$INSTALL_COMMANDS $MODULE"

	eval install_$MODNAME=\"`multi "$REST" 'modprobe' '; '`\; /bin/true\"

	;;

    post-install)

	INSTALL_COMMANDS="$INSTALL_COMMANDS $MODULE"

	eval post_install_$MODNAME=\"`convert_command "$REST"`\"

	;;

    pre-install)

	INSTALL_COMMANDS="$INSTALL_COMMANDS $MODULE"

	eval pre_install_$MODNAME=\"`convert_command "$REST"`\"

	;;

    install)

	INSTALL_COMMANDS="$INSTALL_COMMANDS $MODULE"

	eval install_$MODNAME=\"`convert_command "$REST"`\"

	;;

    post-remove)

	REMOVE_COMMANDS="$REMOVE_COMMANDS $MODULE"

	eval post_remove_$MODNAME=\"`convert_command "$REST"`\"

	;;

    pre-remove)

	REMOVE_COMMANDS="$REMOVE_COMMANDS $MODULE"

	eval pre_remove_$MODNAME=\"`convert_command "$REST"`\"

	;;

    remove)

	REMOVE_COMMANDS="$REMOVE_COMMANDS $MODULE"

	eval remove_$MODNAME=\"`convert_command "$REST"`\"

	;;

    include)

	# Recurse.

	($0 $MODULE)

	;;

    # Ignore default lines which are not required any more.

    "path[boot]=/lib/modules/boot"|"path[toplevel]=/lib/modules/$KV"|"path[toplevel]=/lib/modules/2.4"|"path[kernel]=/lib/modules/kernel"|"path[fs]=/lib/modules/fs"|"path[net]=/lib/modules/net"|"path[scsi]=/lib/modules/scsi"|"path[block]=/lib/modules/block"|"path[cdrom]=/lib/modules/cdrom"|"path[ipv4]=/lib/modules/ipv4"|"path[ipv6]=/lib/modules/ipv6"|"path[sound]=/lib/modules/sound"|"path[fc4]=/lib/modules/fc4"|"path[video]=/lib/modules/video"|"path[misc]=/lib/modules/misc"|"path[pcmcia]=/lib/modules/pcmcia"|"path[atm]=/lib/modules/atm"|"path[usb]=/lib/modules/usb"|"path[ide]=/lib/modules/ide"|"path[ieee1394]=/lib/modules/ieee1394"|"path[mtd]=/lib/modules/mtd"|"generic_stringfile=/lib/modules/$KV/modules.generic_string"|"pcimapfile=/lib/modules/$KV/modules.pcimap"|"isapnpmapfile=/lib/modules/$KV/modules.isapnpmap"|"usbmapfile=/lib/modules/$KV/modules.usbmap"|"parportmapfile=/lib/modules/$KV/modules.parportmap"|"ieee1394mapfile=/lib/modules/$KV/modules.ieee1394map"|"pnpbiosmapfile=/lib/modules/$KV/modules.pnpbiosmap"|"depfile=/lib/modules/$KV/modules.dep"|"persistdir=/var/lib/modules/persist")

	;;

    # Ignore prune lines unless they end in .o or .ko, which would

    # have an effect.

    prune)

	case "$MODULE" in

	*.ko|*.o)

	    echo "Warning: not translating $NAME $MODULE $REST" >&2

	    ;;

	esac

	;;

    *)

	echo "Warning: not translating $NAME $MODULE $REST" >&2

	;;

    esac

done < $MODPROBECONF

for mod in `echo $INSTALL_COMMANDS | tr ' ' '\n' | sort -u`; do

    # MODNAME is the converted name for use in variables.

    MODNAME=`echo $mod | tr -c A-Za-z_0-9 _`

    eval PREINSTALL=\"\$pre_install_$MODNAME\"

    eval POSTINSTALL=\"\$post_install_$MODNAME\"

    eval INSTALL=\"\$\{install_$MODNAME:-/sbin/modprobe --first-time --ignore-install $mod}\"

    if [ -n "$PREINSTALL" ]; then PREINSTALL="{ $PREINSTALL; } ; "; fi

    if [ -n "$POSTINSTALL" ]; then POSTINSTALL="&& { $POSTINSTALL; }"; fi

    echo install $mod $PREINSTALL $INSTALL $POSTINSTALL

done

for mod in `echo $REMOVE_COMMANDS | tr ' ' '\n' | sort -u`; do

    # MODNAME is the converted name for use in variables.

    MODNAME=`echo $mod | tr -c A-Za-z_0-9 _`

    eval PREREMOVE=\"\$pre_remove_$MODNAME\"

    eval POSTREMOVE=\"\$post_remove_$MODNAME\"

    eval REMOVE=\"\$\{remove_$MODNAME:-/sbin/modprobe -r --first-time --ignore-remove $mod}\"

    if [ -n "$PREREMOVE" ]; then PREREMOVE="{ $PREREMOVE; } ; "; fi

    if [ -n "$POSTREMOVE" ]; then POSTREMOVE="&& { $POSTREMOVE; }"; fi

    echo remove $mod $PREREMOVE $REMOVE $POSTREMOVE

done