[Summary view] [Print] [Text view]

   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