Attachment 585515 Details for Bug 823078 – normalize_dasd_arg

normalize_dasd_arg

normalize_dasd_arg (text/plain), 4.52 KB, created by Jesse Keating on 2012-05-18 22:27:15 UTC

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Creator: Jesse Keating

Created: 2012-05-18 22:27:15 UTC

Size: 4.52 KB

patch

obsolete

>#!/bin/sh
>#
># Copyright 2012 Red Hat, Inc.
># License: GPLv2
># Author: Jesse Keating <jkeating@redhat.com>
>#
># Normalize DASD data into valid dasd.conf format
>#
># Standard input should be the DASD argument
># Standard otuput is the properly formatted content
>#
># it is used in
>#   dracut generated initramfs
>#
># Much of this code was salvaged from linuxrc.s390 from Anaconda:
>#
># License GPLv2+
>#
># Copyright (C) 2000-2004 by                                                    
>#        Bernhard Rosenkraenzer <bero@redhat.com>                               
>#        Oliver Paukstadt <opaukstadt@millenux.com>                             
>#        Karsten Hopp <karsten@redhat.de>                                       
>#        Florian La Roche <laroche@redhat.com>                                  
>#        Nils Philippsen <nils@redhat.de>                                       
>#        Helge Deller <hdeller@redhat.de>                                       
>#        David Sainty <dsainty@redhat.com>                                      
># Copyright (C) IBM Corp. 2008,2009                                             
>#        Author: Steffen Maier <maier@de.ibm.com>
>
>
>function canonicalize_devno()
>{
>    case ${#1} in
>        3) echo "0.0.0${1}" ;;
>        4) echo "0.0.${1}" ;;
>        *) echo "${1}" ;;
>    esac
>    return 0
>}
>
>read DASD
>for dasditem in $(echo $DASD |sed 's/,/ /g')
>    do
>    unset range features lo hi attrs devno lodevno hidevno devbusid sys
>    case $dasditem in
>        autodetect|probeonly|nopav|nofcx|"") continue ;; # these don't gen a config
>        *)
>            IFS='('
>            read range features <<< "$dasditem"
>            unset IFS
>            lo=${range%%-*}
>            [[ "$lo" =~ (^[[:xdigit:]]+\.[0-3]\.[[:xdigit:]]{4}$)|(^[[:xdigit:]]{3,4}$) ]]
>            case $? in
>                0)  # string matched the pattern
>                    lo=$(canonicalize_devno $lo) ;;
>                1)  # string did not match the pattern
>                    echo $"Incorrect format for lower bound of DASD range $range: $lo"
>                    exit 1
>                    ;;
>                2)  echo "l.$LINENO: syntax error in regex of match operator =~, code needs to be fixed" 1>&2 ;;
>                *)  echo "l.$LINENO: unexpected return code of regex match operator =~, code needs to be fixed" 1>&2 ;;
>            esac
>            if [ "${range//*-*/}" = "" ]; then
>                hi=${range##*-}
>                [[ "$hi" =~ (^[[:xdigit:]]+\.[0-3]\.[[:xdigit:]]{4}$)|(^[[:xdigit:]]{3,4}$) ]]
>                case $? in
>                    0)  # string matched the pattern
>                        hi=$(canonicalize_devno $hi)
>                        if [ "${lo%.*}" != "${hi%.*}" ]; then
>                            echo $"Prefixes of DASD range $range do not match: ${lo%.*} != ${hi%.*}"
>                            exit 1
>                        fi
>                        ;;
>                    1)  # string did not match the pattern
>                        echo $"Incorrect format for upper bound of DASD range $range: $hi"
>                        exit 1
>                        ;;
>                    2)  echo "l.$LINENO: syntax error in regex of match operator =~, code needs to be fixed" 1>&2 ;;
>                    *)  echo "l.$LINENO: unexpected return code of regex match operator =~, code needs to be fixed" 1>&2 ;;
>                esac
>            fi
>            if [ "${features//*)/}" != "" ]; then
>                echo $"Missing closing parenthesis at features of DASD range $range: ($features"
>                exit 1
>            fi
>            if [ -n "$features" ]; then
>                attrs=""
>                features="${features%)}"
>                for feature in $(echo $features |sed 's/:/\n/g'); do
>                    case $feature in
>                        ro) attrs=$attrs" readonly" ;;
>                        diag) attrs=$attrs" use_diag" ;;
>                        erplog|failfast) attrs=$attrs" "$feature ;;
>                        *) echo $"Unknown DASD feature for device range $range: $feature"
>                           exit 1
>                           ;;
>                    esac
>                done
>            fi
>            [ -z "$hi" ] && hi=$lo
>            lodevno=$((0x${lo##*.}))
>            hidevno=$((0x${hi##*.}))
>            for ((devno=$lodevno; $devno <= $hidevno; ++devno)); do
>                devbusid=$(printf "%s.%04x" ${lo%.*} $devno)
>                echo -n "$devbusid"
>                for attr in $attrs; do
>                    echo -n " $attr=1"
>                done
>                echo
>            done
>    esac
>done

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Attachments on bug 823078: 585515