Chip 2007 January, February, March & April/Chip-Cover-CD-2007-02.iso/Pakiet bezpieczenstwa/mini Pentoo LiveCD 2006.1/mpentoo-2006.1.iso/livecd.squashfs/sbin/modules-update

Text File | 2006-04-25 | 4.9 KB | 215 lines

#!/bin/bash
#
# This is the modules-update script for Debian GNU/Linux.
# Written by Wichert Akkerman <[e-mail]>
# Copyright (C) 1998, 1999 Software in the Public Interest
#
# Modifications by Daniel Robbins <[e-mail]>, Gentoo Foundation
# 02 Sep 2001 -- Removed "arch" stuff since I see no reason to have
# support for varying CPU architectures on a single system.
#
# Updated by Aron Griffis <[e-mail]>
# 05 May 2004 -- handle --assume-kernel argument for livecd building

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"

source /sbin/functions.sh

# Parse command-line
FORCE=false
ASSUME_KV=
while [ -n "$1" ]; do
    case "$1" in
        force)
            FORCE=true ;;
        --assume-kernel=*)
            ASSUME_KV=${1#*=} ;;
        *)
            echo "Error: I don't understand $1" >&2
            exit 1 ;;
    esac
    shift
done

# Set kernel version, either from --assume-kernel or uname -r
KV=${ASSUME_KV:-$(uname -r)}
if [[ $(KV_to_int ${KV}) -ge $(KV_to_int 2.5.48) ]]; then
    KERNEL_2_5=true
else
    KERNEL_2_5=false
fi

set -e

# Reset the sorting order since we depend on it
export LC_COLLATE="C"

depdir() {
    dep="`sed -n -e '/[ \t]*depfile=/h;${x;s/[ \t]*depfile=//g;s,/[^/]*$,,p}' ${CFGFILE}`"
    if [ -z "${dep}" ]
    then
        dep="/lib/modules/${KV}"
    fi

    echo "${dep}"
}

CFGFILES="${CFGFILE}"

if ${KERNEL_2_5}; then
    CFGFILES="${CFGFILES} ${CFGFILE2} ${CFGFILE4}"
fi

for x in ${CFGFILES}
do
    if [ -f "${x}" ]
    then
        if ! sed -ne 1p "${x}" | egrep -q "^${HEADER}"
        then
            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
    fi
done

if [ 0 -ne "`id -u`" ]
then
    echo "You have to be root to do this."
    exit 2
fi

if [ -e "${CFGFILE}" ]
then
    cp -f "${CFGFILE}" "${CFGFILE}".old
fi
if ${KERNEL_2_5}; then
    if [ -e "${CFGFILE2}" ]
    then
        cp -f "${CFGFILE2}" "${CFGFILE2}".old
    fi
    if [ -e "${CFGFILE4}" ]
    then
        cp -f "${CFGFILE4}" "${CFGFILE4}".old
    fi
fi


echo "${HEADER}" > "${TMPFILE}"
cat <<EOF >> "${TMPFILE}"
#
# Please do not edit this file directly. If you want to change or add
# anything please take a look at the files in ${MODDIR} and read
# the manpage for modules-update.
#
EOF
if [ -x /sbin/generate-modprobe.conf -a "${KERNEL_2_5}" = "true" ]
then
    sed -e "s:the files in ${MODDIR}:${CFGFILE}:" \
        "${TMPFILE}" > "${TMPFILE2}"

    if [ -f "${CFGFILE3}" ]
    then
        sed -e "s:the files in ${MODDIR}:${CFGFILE3}:" \
            "${TMPFILE}" > "${TMPFILE4}"
    fi
fi

for cfg in "${MODDIR}"/* "${CONF}"
do
    [ -d "${cfg}" ] && continue

    [ ! -r "${cfg}" ] && continue

    # Skip backup and RCS files; fixes bug 20597 (07 May 2004 agriffis)
    [[ ${cfg} == *~ || ${cfg} == *.bak || ${cfg} == *,v ]] && continue

    echo "### modules-update: start processing ${cfg}" >> "${TMPFILE}"

    if [ -x ${cfg} ]
    then
        # $cfg can be executable; nice touch, Wichert! :)
        "${cfg}" >> "${TMPFILE}"
    else
        cat "${cfg}" >> "${TMPFILE}"
    fi

    echo >> "${TMPFILE}"
    echo "### modules-update: end processing ${cfg}" >> "${TMPFILE}"
    echo >> "${TMPFILE}"
done

mv -f "${TMPFILE}" "${CFGFILE}"

if [ -x /sbin/generate-modprobe.conf -a "${KERNEL_2_5}" = "true" ]
then
    # Make sure that generate-modprobe.conf can handle --assume-kernel
    # if we were called with it.
    if [[ -n ${ASSUME_KV} ]] && ! grep -qe --assume-kernel \
        /sbin/generate-modprobe.conf
    then
        eerror "Error: modules-update called with --assume-kernel flag, but"
        eerror "generate-modprobe.conf doesn't understand it.  You need to"
        eerror "install >=module-init-tools-3.0-r2"
        exit 3
    fi
    if /sbin/generate-modprobe.conf ${ASSUME_KV:+--assume-kernel=${KV}} \
        >> "${TMPFILE2}" 2> /dev/null
    then
        mv -f "${TMPFILE2}" "${CFGFILE2}"
    else
        ewarn "Warning: could not generate ${CFGFILE2}!"
        rm -f "${TMPFILE2}"
    fi

    if [ -f "${CFGFILE3}" ]
    then
        gawk '$0 !~ /^[[:space:]]*include/ { print $0 }' "${CFGFILE3}" \
            > "${TMPFILE3}"

        export TESTING_MODPROBE_CONF="${TMPFILE3}"
        if /sbin/generate-modprobe.conf ${ASSUME_KV:+--assume-kernel=${KV}} \
            >> "${TMPFILE4}" 2> /dev/null
        then
            mv -f "${TMPFILE4}" "${CFGFILE4}"

            echo >> "${CFGFILE4}"
            echo "include /etc/modprobe.conf" >> "${CFGFILE4}"
        else
            ewarn "Warning: could not generate ${CFGFILE4}!"
            rm -f "${TMPFILE4}"
        fi
        rm -f "${TMPFILE3}"
    fi
fi

# We also call depmod here to stop insmod from complaining that modules.conf
# is more recent then modules.dep
#
if [ -d "`depdir`" -a -f /proc/modules ]
then
    if [ -f /usr/src/linux/System.map ]; then
        depmod -a -F /usr/src/linux/System.map ${KV}
    else
        ewarn "System.map not found - unable to check symbols"
    fi
fi


# vim:ts=4