generate-modprobe.conf

   1 #! /bin/sh -e
   2
   3 # Naive shell script to translate modules.conf + defaults to modprobe.conf
   4 # Normal caveats apply, as with any machine translation.
   5 if [ $# -gt 2 ] || [ x"$1" = x--help ]; then
   6     echo "Usage: $0 [--stdin] [modprobe.conf]"
   7     echo "   Converts your current modules setup to modprobe.conf."
   8     echo "   Don't trust it too much."
   9     echo " Version 0.1"
  10     exit 1
  11 fi
  12
  13 STDIN=
  14 if [ "$1" = "--stdin" ]; then
  15   STDIN=1
  16   shift
  17 fi
  18
  19 # Set up output if specified.
  20 if [ $# -eq 1 ]; then exec > $1; fi
  21
  22 MODPROBECONF=`mktemp /tmp/modprobe.XXXXXX || tempfile || echo /tmp/modprobe.$$`
  23 trap "rm -f $MODPROBECONF" 0
  24
  25 if [ x"$TESTING_MODPROBE_CONF" != x ]; then
  26     cp $TESTING_MODPROBE_CONF $MODPROBECONF
  27 elif [ "$STDIN" = "1" ]; then
  28     cat > $MODPROBECONF
  29 elif [ -x /sbin/modprobe.old ]; then
  30     # In sbin.
  31     /sbin/modprobe.old -c > $MODPROBECONF
  32 elif modprobe.old -c >/dev/null 2>&1; then
  33     # Somewhere in path.
  34     modprobe.old -c > $MODPROBECONF
  35 elif /sbin/modprobe -V 2>/dev/null | grep -q 'modprobe version'; then
  36     # Running /sbin/modprobe gives old version.
  37     /sbin/modprobe -c > $MODPROBECONF
  38 elif modprobe -V 2>/dev/null | grep -q 'modprobe version'; then
  39     # Running modprobe gives old version.
  40     modprobe -c > $MODPROBECONF
  41 else
  42     echo Cannot find old version of modprobe.  Giving up. 2>&1
  43     exit 1
  44 fi
  45
  46 # Resolve (possibly recursive) alias: args filename alias
  47 resolve_alias()
  48 {
  49     RA_RESOLVE=`grep "^alias[   ][      ]*$2[   ]" -- $1 | awk '{ print $3 }'`
  50     if [ x"$RA_RESOLVE" = x ]; then
  51         echo $2
  52         return
  53     fi
  54     # Recurse.
  55     (resolve_alias $1 "$RA_RESOLVE")
  56 }
  57
  58 # Parse alias: args filename modulename aliasto.
  59 parse_alias()
  60 {
  61     PA_ALIAS=`resolve_alias $1 $3`
  62     NAME=`echo $2|sed -e 's/\(block\|char\)-major-\([0-9]\+\)$/\1-major-\2-*/'`
  63
  64     echo "alias $NAME $PA_ALIAS"
  65 }
  66
  67 # Parse options: args modulename aliasto.
  68 parse_options()
  69 {
  70     # Second arg can be null if grab_noninstall options returns empty.
  71     [ x"$2" = x ] || echo "options $1 $2"
  72 }
  73
  74 # Separate out the modprobe options from the module options
  75 grab_install_options()
  76 {
  77     GRAB_OPTS=""
  78     GRAB_NEXT=0
  79     for grab_i; do
  80         case "$grab_i" in
  81         -o) GRAB_OPTS="$GRAB_OPTS -o"; GRAB_NEXT=1;;
  82         -*) echo Warning: Ignoring unknown alias option "$grab_i" >&2;;
  83         *)
  84             [ $GRAB_NEXT = 0 ] || GRAB_OPTS="$GRAB_OPTS $grab_i"
  85             GRAB_NEXT=0
  86             ;;
  87         esac
  88     done
  89     echo "$GRAB_OPTS"
  90 }
  91
  92 grab_noninstall_options()
  93 {
  94     GRAB_OPTS=""
  95     GRAB_NEXT=0
  96     for grab_i; do
  97         case "$grab_i" in
  98         -o) GRAB_NEXT=1;;
  99         -*) ;;
 100         *)
 101             [ $GRAB_NEXT = 1 ] || GRAB_OPTS="$GRAB_OPTS $grab_i"
 102             GRAB_NEXT=0
 103             ;;
 104         esac
 105     done
 106     echo "$GRAB_OPTS"
 107 }
 108
 109 # Produce a multiple install/remove commands. Args: list, command, separator.
 110 multi()
 111 {
 112     mp_res=""
 113     for mp_arg in $1; do
 114         if [ x"$mp_res" = x ]; then mp_res="/sbin/$2 $mp_arg";
 115         else mp_res="$mp_res${3}/sbin/$2 $mp_arg";
 116         fi
 117     done
 118     echo "$mp_res"
 119 }
 120
 121 # Install and remove commands frequently refer to insmod and rmmod.
 122 # Use "modprobe --ignore-install " and "modprobe -r --ignore-remove" since
 123 # our versions of rmmod and insmod are deliberately stupid.
 124 convert_command()
 125 {
 126     echo "$@" | sed -e 's,insmod,/sbin/modprobe --ignore-install,' -e 's,rmmod,/sbin/modprobe -r --ignore-remove,'
 127 }
 128
 129 while read ADD NAME MODULE REST; do
 130     # Ignore a spurious add, otherwise move them down.
 131     if [ x"$ADD" = x"add" ]; then :; else
 132         REST="`echo $MODULE $REST | sed 's/ *$//'`"
 133         MODULE="$NAME"
 134         NAME="$ADD";
 135     fi
 136     #echo "NAME=$NAME MODULE=$MODULE REST=$REST" >&2
 137
 138     # MODNAME is the converted name for use in variables.
 139     MODNAME=`echo $MODULE | tr -c A-Za-z_0-9 _`
 140     case "$NAME" in
 141     '#'*) : ;; # Comment
 142     '') : ;;   # Blank line
 143
 144     keep) # Do nothing.
 145         ;;
 146
 147     alias)
 148         if [ x"$REST" = xoff ] || [ x"$REST" = xnull ]; then
 149             INSTALL_COMMANDS="$INSTALL_COMMANDS $MODULE"
 150             eval install_$MODNAME=\"/bin/true\"
 151         else
 152             parse_alias $MODPROBECONF "$MODULE" $REST
 153         fi
 154         ;;
 155
 156     options)
 157         # Options used to be able to contain extra args to insmod
 158         # (eg. -o foo).  Not any more.
 159         case " $REST" in
 160         *' '-[-a-z]*)
 161             parse_options $MODULE `grab_noninstall_options $REST`
 162             INSTALL_OPTIONS=`grab_install_options $REST`
 163             INSTALL_COMMANDS="$INSTALL_COMMANDS $MODULE"
 164             eval install_$MODNAME=\"/sbin/modprobe $INSTALL_OPTIONS --ignore-install `resolve_alias $MODPROBECONF $MODULE`\"
 165             ;;
 166         *)
 167             parse_options $MODULE "$REST"
 168             ;;
 169         esac
 170         ;;
 171
 172     above)
 173         # Pull in these modules after me.
 174         INSTALL_COMMANDS="$INSTALL_COMMANDS $MODULE"
 175         eval post_install_$MODNAME=\"`multi "$REST" 'modprobe' '; '`\; /bin/true\"
 176         REMOVE_COMMANDS="$REMOVE_COMMANDS $MODULE"
 177         eval pre_remove_$MODNAME=\"`multi "$REST" 'modprobe -r' '; '`\"
 178         ;;
 179     below)
 180         # Pull in these modules before me.
 181         INSTALL_COMMANDS="$INSTALL_COMMANDS $MODULE"
 182         eval pre_install_$MODNAME=\"`multi "$REST" 'modprobe' '; '`\"
 183         REMOVE_COMMANDS="$REMOVE_COMMANDS $MODULE"
 184         eval post_remove_$MODNAME=\"`multi "$REST" 'modprobe -r' '; '`\; /bin/true\"
 185         ;;
 186     probe)
 187         INSTALL_COMMANDS="$INSTALL_COMMANDS $MODULE"
 188         eval install_$MODNAME=\"`multi "$REST" 'modprobe' ' || '`\"
 189         ;;
 190     probeall)
 191         # Not quite correct.  If they all fail, we should fail.
 192         INSTALL_COMMANDS="$INSTALL_COMMANDS $MODULE"
 193         eval install_$MODNAME=\"`multi "$REST" 'modprobe' '; '`\; /bin/true\"
 194         ;;
 195     post-install)
 196         INSTALL_COMMANDS="$INSTALL_COMMANDS $MODULE"
 197         eval post_install_$MODNAME=\"`convert_command "$REST"`\"
 198         ;;
 199     pre-install)
 200         INSTALL_COMMANDS="$INSTALL_COMMANDS $MODULE"
 201         eval pre_install_$MODNAME=\"`convert_command "$REST"`\"
 202         ;;
 203     install)
 204         INSTALL_COMMANDS="$INSTALL_COMMANDS $MODULE"
 205         eval install_$MODNAME=\"`convert_command "$REST"`\"
 206         ;;
 207     post-remove)
 208         REMOVE_COMMANDS="$REMOVE_COMMANDS $MODULE"
 209         eval post_remove_$MODNAME=\"`convert_command "$REST"`\"
 210         ;;
 211     pre-remove)
 212         REMOVE_COMMANDS="$REMOVE_COMMANDS $MODULE"
 213         eval pre_remove_$MODNAME=\"`convert_command "$REST"`\"
 214         ;;
 215     remove)
 216         REMOVE_COMMANDS="$REMOVE_COMMANDS $MODULE"
 217         eval remove_$MODNAME=\"`convert_command "$REST"`\"
 218         ;;
 219     include)
 220         # Recurse.
 221         ($0 $MODULE)
 222         ;;
 223     # Ignore default lines which are not required any more.
 224     "path[boot]=/lib/modules/boot"|"path[toplevel]=/lib/modules/`uname -r`"|"path[toplevel]=/lib/modules/2.4"|"path[kernel]=/lib/modules/kernel"|"path[fs]=/lib/modules/fs"|"path[net]=/lib/modules/net"|"path[scsi]=/lib/modules/scsi"|"path[block]=/lib/modules/block"|"path[cdrom]=/lib/modules/cdrom"|"path[ipv4]=/lib/modules/ipv4"|"path[ipv6]=/lib/modules/ipv6"|"path[sound]=/lib/modules/sound"|"path[fc4]=/lib/modules/fc4"|"path[video]=/lib/modules/video"|"path[misc]=/lib/modules/misc"|"path[pcmcia]=/lib/modules/pcmcia"|"path[atm]=/lib/modules/atm"|"path[usb]=/lib/modules/usb"|"path[ide]=/lib/modules/ide"|"path[ieee1394]=/lib/modules/ieee1394"|"path[mtd]=/lib/modules/mtd"|"generic_stringfile=/lib/modules/`uname -r`/modules.generic_string"|"pcimapfile=/lib/modules/`uname -r`/modules.pcimap"|"isapnpmapfile=/lib/modules/`uname -r`/modules.isapnpmap"|"usbmapfile=/lib/modules/`uname -r`/modules.usbmap"|"parportmapfile=/lib/modules/`uname -r`/modules.parportmap"|"ieee1394mapfile=/lib/modules/`uname -r`/modules.ieee1394map"|"pnpbiosmapfile=/lib/modules/`uname -r`/modules.pnpbiosmap"|"depfile=/lib/modules/`uname -r`/modules.dep"|"persistdir=/var/lib/modules/persist")
 225         ;;
 226
 227     # Ignore prune lines unless they end in .o or .ko, which would
 228     # have an effect.
 229     prune)
 230         case "$MODULE" in
 231         *.ko|*.o)
 232             echo "Warning: not translating $NAME $MODULE $REST" >&2
 233             ;;
 234         esac
 235         ;;
 236     *)
 237         echo "Warning: not translating $NAME $MODULE $REST" >&2
 238         ;;
 239     esac
 240 done < $MODPROBECONF
 241
 242 for mod in `echo $INSTALL_COMMANDS | tr ' ' '\n' | sort -u`; do
 243     # MODNAME is the converted name for use in variables.
 244     MODNAME=`echo $mod | tr -c A-Za-z_0-9 _`
 245     eval PREINSTALL=\"\$pre_install_$MODNAME\"
 246     eval POSTINSTALL=\"\$post_install_$MODNAME\"
 247     eval INSTALL=\"\$\{install_$MODNAME:-/sbin/modprobe --first-time --ignore-install $mod}\"
 248     if [ -n "$PREINSTALL" ]; then PREINSTALL="{ $PREINSTALL; } ; "; fi
 249     if [ -n "$POSTINSTALL" ]; then POSTINSTALL="&& { $POSTINSTALL; }"; fi
 250     echo install $mod $PREINSTALL $INSTALL $POSTINSTALL
 251 done
 252
 253 for mod in `echo $REMOVE_COMMANDS | tr ' ' '\n' | sort -u`; do
 254     # MODNAME is the converted name for use in variables.
 255     MODNAME=`echo $mod | tr -c A-Za-z_0-9 _`
 256     eval PREREMOVE=\"\$pre_remove_$MODNAME\"
 257     eval POSTREMOVE=\"\$post_remove_$MODNAME\"
 258     eval REMOVE=\"\$\{remove_$MODNAME:-/sbin/modprobe -r --first-time --ignore-remove $mod}\"
 259     if [ -n "$PREREMOVE" ]; then PREREMOVE="{ $PREREMOVE; } ; "; fi
 260     if [ -n "$POSTREMOVE" ]; then POSTREMOVE="&& { $POSTREMOVE; }"; fi
 261     echo remove $mod $PREREMOVE $REMOVE $POSTREMOVE
 262 done