Script: softice-osc-run

From SOFTICE

#!/bin/bash
# copyleft Alessio Gaspar, SOFTICE project, 2006/07/17, 2008/04/29
# file:         $SOFTICE_ROOT/$TAG/bin/softice-osc-run
# chmod:        executable by anyone (should be called by users themselves)

# configuration of our softice installation
SOFTICE_ROOT="/softice"
WHEREWECOMEFROM="`pwd`"
what=$0

#let's first figure out if we're running for osc or elsa labs
TAG="osc"

# Let's configure the environment depending on the lab series
# location of the files in students' home directory
HOMERUN="$HOME/.softice-$TAG"

# uml console
UML_MCONSOLE="/usr/bin/uml_mconsole"

# command line options for the UML virtual machine
UML_OPT="con=null con0=fd:0,fd:1"
UML_ID="`/usr/bin/id -n -u`.$TAG"
UML_EXE="$SOFTICE_ROOT/$TAG/bin/linux-uml"

# title bar for when we're using dialog
DIA="[$TAG Labs]  UML VM management script"


#______________________________________________________________________
check_homerun () {
#______________________________________________________________________

    if [[ ! -d $HOMERUN ]]
    then
        dialog --backtitle "$DIA" --yesno \
            "Error: Your account doesn't have a SOFTICE $TAG environment (~/.softice-$TAG).\
            Do you want to recreate it from scratch?" 10 60
        if [[ $? -eq 0 ]]
            then
            dialog --backtitle "$DIA" --yesno \
                "You will loose all modifications done in your virtual machine if you do so!!!!\
                Are you sure you want to reinstall your virtual environment?" 10 60

            if [[ $? -eq 0 ]]
                then
                  #proceed with reinstalling the whole thing
                  $SOFTICE_ROOT/$TAG/bin/softice-osc-setup
                else
                dialog    --backtitle "$DIA" --msgbox "Aborting the script, contact your instructor." 6 60
                exit 1
            fi

        else
            dialog    --backtitle "$DIA" --msgbox "Aborting the script, contact your instructor." 6 60
            exit 1
        fi
    fi

}



#______________________________________________________________________
check_previous_uml () {
#______________________________________________________________________

    $UML_MCONSOLE  $UML_ID version 2>/dev/null
    VAL=$?

    if [[ $VAL -eq 0 ]]
        then
        dialog --backtitle "$DIA" \
            --yesno "Error: UML virtual machine \"$UML_ID\" already running.\
            Do you want to halt it (loss of data possible)?" 9 60
        if [[ $? -eq 0 ]]
            then
            $UML_MCONSOLE $UML_ID halt
            dialog --backtitle "$DIA" --infobox "Waiting for \"$UML_ID\" to shutdown properly..." 6 60
            sleep 4
            check_previous_uml
        else
            dialog    --backtitle "$DIA" --msgbox "Stop the UML VM by hand before to try to execute another one." 6 60
            exit 1
        fi
    fi

}

check_homerun
check_previous_uml


cd $HOMERUN
    # These are the devices that will correspond to (ro) file systems
    # containing the source trees
    UML_KSRC_COW="$HOMERUN/ks.2.6.16.20.cow"
    #BUG why is this 2.6.13???
    # causes issues when compiling the module against these sources ant then
    # loading it in the 2.6..16.20 kernel of the uml vm
    #UML_KSRC_RFS="$SOFTICE_ROOT/$TAG/fs/ks.2.6.13.4.rfs"
    UML_KSRC_RFS="$SOFTICE_ROOT/$TAG/fs/ks.2.6.16.20.2xpatched.rfs"

    # this is the core image (debian)
    UML_CORE_COW="$HOMERUN/core-debian.cow"
    UML_CORE_RFS="$SOFTICE_ROOT/$TAG/fs/core-debian.rfs"

    # this is our configuration device
    UML_CFG="$HOMERUN/config.rfs"

    # this is our vfat tiny disk for lab #07
    UML_VFAT="$HOMERUN/07-vfatdisk.rfs"

    UML_CMD_LINE="$UML_EXE \
        ubd0=$UML_CORE_COW,$UML_CORE_RFS      \
        ubd1=$UML_KSRC_COW,$UML_KSRC_RFS     \
        ubd6=$UML_CFG      \
        ubd5=$UML_VFAT  \
        $UML_OPT           \
#       mem=512M           \
        umid=$UML_ID"

    $UML_CMD_LINE

#return where we were at the beginning of this script
cd $WHEREWECOMEFROM