Annotation of /trunk/grubby/grubby-bls

#!/bin/bash
#
# grubby wrapper to manage BootLoaderSpec files
#
#
# Copyright 2018 Red Hat, Inc.  All rights reserved.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.

readonly SCRIPTNAME="${0##*/}"

CMDLINE_LINUX_DEBUG=" systemd.log_level=debug systemd.log_target=kmsg"
LINUX_DEBUG_VERSION_POSTFIX="_with_debugging"
LINUX_DEBUG_TITLE_POSTFIX=" with debugging"

declare -a bls_file
declare -a bls_title
declare -a bls_version
declare -a bls_linux
declare -a bls_initrd
declare -a bls_options
declare -a bls_id

[[ -f /etc/sysconfig/kernel ]] && . /etc/sysconfig/kernel
[[ -f /etc/os-release ]] && . /etc/os-release
read MACHINE_ID < /etc/machine-id
arch=$(uname -m)

if [[ $arch = 's390' || $arch = 's390x' ]]; then
    bootloader="zipl"
else
    bootloader="grub2"
fi

print_error() {
    echo "$1" >&2
    exit 1
}

if [[ ${#} = 0 ]]; then
    print_error "no action specified"
fi

get_bls_value() {
    local bls="$1" && shift
    local key="$1" && shift

    echo "$(grep "^${key}[ \t]" "${bls}" | sed -e "s!^${key}[ \t]*!!")"
}

set_bls_value() {
    local bls="$1" && shift
    local key="$1" && shift
    local value="$1" && shift

    sed -i -e "s!^${key}.*!${key} ${value}!" "${bls}"
}

append_bls_value() {
    local bls="$1" && shift
    local key="$1" && shift
    local value="$1" && shift

    old_value="$(get_bls_value ${bls} ${key})"
    set_bls_value "${bls}" "${key}" "${old_value}${value}"
}

get_bls_values() {
    count=0
    for bls in $(ls -vr ${blsdir}/*.conf 2> /dev/null); do
        bls_file[$count]="${bls}"
        bls_title[$count]="$(get_bls_value ${bls} title)"
        bls_version[$count]="$(get_bls_value ${bls} version)"
        bls_linux[$count]="$(get_bls_value ${bls} linux)"
        bls_initrd[$count]="$(get_bls_value ${bls} initrd)"
        bls_options[$count]="$(get_bls_value ${bls} options)"
        bls_id[$count]="$(get_bls_value ${bls} id)"

        count=$((count+1))
    done
}

get_default_index() {
    local default=""
    local index="-1"
    local title=""
    local version=""
    if [[ $bootloader = "grub2" ]]; then
	default="$(grep '^saved_entry=' ${env} | sed -e 's/^saved_entry=//')"
    else
	default="$(grep '^default=' ${zipl_config} | sed -e 's/^default=//')"
    fi

    if [[ -z $default ]]; then
	index=0
    elif [[ $default =~ ^[0-9]+$ ]]; then
	index="$default"
    fi

    # GRUB2 and zipl use different fields to set the default entry
    if [[ $bootloader = "grub2" ]]; then
	title="$default"
    else
	version="$default"
    fi

    for i in ${!bls_file[@]}; do
        if [[ $title = ${bls_title[$i]} || $version = ${bls_version[$i]} ||
           $i -eq $index ]]; then
            echo $i
            return
        fi
    done
}

display_default_value() {
    case "$display_default" in
        kernel)
            echo "${bls_linux[$default_index]}"
            exit 0
            ;;
        index)
            echo "$default_index"
            exit 0
            ;;
        title)
            echo "${bls_title[$default_index]}"
            exit 0
            ;;
    esac
}

param_to_indexes() {
    local param="$1"
    local indexes=""

    if [[ $param = "ALL" ]]; then
        for i in ${!bls_file[@]}; do
            indexes="$indexes $i"
        done
        echo -n $indexes
        return
    fi

    if [[ $param = "DEFAULT" ]]; then
        echo -n $default_index
        return
    fi

    for i in ${!bls_file[@]}; do
        if [[ $param = "${bls_linux[$i]}" || "/${param##*/}" = "${bls_linux[$i]}" ]]; then
            indexes="$indexes $i"
        fi

        if [[ $param = "TITLE=${bls_title[$i]}" ]]; then
            indexes="$indexes $i"
        fi

	if [[ $param = $i ]]; then
	    indexes="$indexes $i"
	fi
    done

    if [[ -n $indexes ]]; then
        echo -n $indexes
        return
    fi

    echo -n "-1"
}

display_info_values() {
    local indexes=($(param_to_indexes "$1"))

    for i in ${indexes[*]}; do
        echo "index=$i"
        echo "kernel=${bls_linux[$i]}"
        echo "args=\"${bls_options[$i]}\""
        echo "initrd=${bls_initrd[$i]}"
        echo "title=${bls_title[$i]}"
    done
    exit 0
}

mkbls() {
    local kernel=$1 && shift
    local kernelver=$1 && shift
    local datetime=$1 && shift

    local debugname=""
    local flavor=""

    if [[ $kernelver == *\+* ]] ; then
        local flavor=-"${kernelver##*+}"
        if [[ $flavor == "-debug" ]]; then
            local debugname="with debugging"
	    local debugid="-debug"
        fi
    fi

    cat <<EOF
title ${NAME} (${kernelver}) ${VERSION}${debugname}
version ${kernelver}${debugid}
linux ${kernel}
initrd /initramfs-${kernelver}.img
options \$kernelopts
id ${ID}-${datetime}-${kernelver}${debugid}
grub_users \$grub_users
grub_arg --unrestricted
grub_class kernel${flavor}
EOF
}

remove_bls_fragment() {
    local indexes=($(param_to_indexes "$1"))

    if [[ $indexes = "-1" ]]; then
	print_error "The param $1 is incorrect"
    fi

    for i in ${indexes[*]}; do
        rm -f "${bls_file[$i]}"
    done

    get_bls_values

    update_grubcfg
}

add_bls_fragment() {
    local kernel="$1" && shift
    local title="$1" && shift
    local options="$1" && shift
    local initrd="$1" && shift
    local extra_initrd="$1" && shift

    if [[ $kernel = *"vmlinuz-"* ]]; then
	kernelver="${kernel##*/vmlinuz-}"
	prefix="vmlinuz-"
    else
	kernelver="${kernel##*/}"
    fi

    if [[ ! -f "/boot/${prefix}${kernelver}" ]] &&
       [[ $bad_image != "true" ]]; then
        print_error "The ${kernelver} kernel isn't installed in the machine"
    fi

    if [[ -z $title ]]; then
	print_error "The kernel title must be specified"
    fi

    if [[ ! -d $blsdir ]]; then
        install -m 700 -d "${blsdir}"
    fi

    bls_target="${blsdir}/${MACHINE_ID}-${kernelver}.conf"
    kernel_dir="/lib/modules/${kernelver}"
    if [[ -f "${kernel_dir}/bls.conf" ]]; then
        cp -aT "${kernel_dir}/bls.conf" "${bls_target}" || exit $?
    else
	if [[ -d $kernel_dir ]]; then
	    datetime="$(date -u +%Y%m%d%H%M%S -d "$(stat -c '%y' "${kernel_dir}")")"
	else
	    datetime=0
	fi
        mkbls "${kernel}" "${kernelver}" "${datetime}" > "${bls_target}"
    fi

    if [[ -n $title ]]; then
        set_bls_value "${bls_target}" "title" "${title}"
    fi

    if [[ -n $options ]]; then
        set_bls_value "${bls_target}" "options" "${options}"
    fi

    if [[ -n $initrd ]]; then
        set_bls_value "${bls_target}" "initrd" "${initrd}"
    fi

    if [[ -n $extra_initrd ]]; then
        append_bls_value "${bls_target}" "initrd" "${extra_initrd}"
    fi

    if [[ $MAKEDEBUG = "yes" ]]; then
        arch="$(uname -m)"
        bls_debug="$(echo ${bls_target} | sed -e "s/\.${arch}/-debug.${arch}/")"
        cp -aT  "${bls_target}" "${bls_debug}"
        append_bls_value "${bls_debug}" "title" "${LINUX_DEBUG_TITLE_POSTFIX}"
        append_bls_value "${bls_debug}" "version" "${LINUX_DEBUG_VERSION_POSTFIX}"
        append_bls_value "${bls_debug}" "options" "${CMDLINE_LINUX_DEBUG}"
        blsid="$(get_bls_value ${bls_debug} "id" | sed -e "s/\.${arch}/-debug.${arch}/")"
        set_bls_value "${bls_debug}" "id" "${blsid}"
    fi

    get_bls_values

    if [[ $make_default = "true" ]]; then
        set_default_bls "TITLE=${title}"
    fi

    update_grubcfg

    exit 0
}

update_args() {
    local args=$1 && shift
    local remove_args=($1) && shift
    local add_args=($1) && shift

    for arg in ${remove_args[*]}; do
        args="$(echo $args | sed -e "s!$arg[^ ]*!!")"
    done

    for arg in ${add_args[*]}; do
        if [[ $arg = *"="* ]]; then
            value=${arg##*=}
            key=${arg%%=$value}
            exist=$(echo $args | grep "${key}=")
            if [[ -n $exist ]]; then
                args="$(echo $args | sed -e "s!$key=[^ ]*!$key=$value!")"
            else
                args="$args $key=$value"
            fi
        else
            exist=$(echo $args | grep $arg)
            if ! [[ -n $exist ]]; then
                args="$args $arg"
            fi
        fi
    done

    echo ${args}
}

update_bls_fragment() {
    local indexes=($(param_to_indexes "$1")) && shift
    local remove_args=$1 && shift
    local add_args=$1 && shift
    local initrd=$1 && shift

    for i in ${indexes[*]}; do
	if [[ -n $remove_args || -n $add_args ]]; then
            local new_args="$(update_args "${bls_options[$i]}" "${remove_args}" "${add_args}")"
            set_bls_value "${bls_file[$i]}" "options" "${new_args}"
	fi

	if [[ -n $initrd ]]; then
	    set_bls_value "${bls_file[$i]}" "initrd" "${initrd}"
	fi
    done

    update_grubcfg
}

set_default_bls() {
    local index=($(param_to_indexes "$1"))

    if [[ $bootloader = grub2 ]]; then
        grub2-editenv "${env}" set saved_entry="${bls_title[$index]}"
    else
        local default="${bls_version[$index]}"
        local current="$(grep '^default=' ${zipl_config} | sed -e 's/^default=//')"
        if [[ -n $current ]]; then
            sed -i -e "s,^default=.*,default=${default}," "${zipl_config}"
        else
            echo "default=${default}" >> "${zipl_config}"
        fi
    fi
}

remove_var_prefix() {
    if [[ -n $remove_kernel && $remove_kernel =~ ^/ ]]; then
       remove_kernel="/${remove_kernel##*/}"
    fi

    if [[ -n $initrd ]]; then
	initrd="/${initrd##*/}"
    fi

    if [[ -n $extra_initrd ]]; then
	extra_initrd=" /${extra_initrd##*/}"
    fi

    if [[ -n $kernel ]]; then
	kernel="/${kernel##*/}"
    fi

    if [[ -n $update_kernel && $update_kernel =~ ^/ ]]; then
	update_kernel="/${update_kernel##*/}"
    fi
}

update_grubcfg()
{
    if [[ $arch = 'ppc64' || $arch = 'ppc64le' ]]; then
	grub2-mkconfig -o /boot/grub2/grub.cfg >& /dev/null
    fi
}

print_usage()
{
    cat <<EOF
Usage: grubby [OPTION...]
      --add-kernel=kernel-path            add an entry for the specified kernel
      --args=args                         default arguments for the new kernel or new arguments for kernel being updated)
      --bad-image-okay                    don't sanity check images in boot entries (for testing only)
  -c, --config-file=path                  path to grub config file to update ("-" for stdin)
      --copy-default                      use the default boot entry as a template for the new entry being added; if the default is not a linux image, or if the kernel referenced by the default image does not exist, the
                                          first linux entry whose kernel does exist is used as the template
      --default-kernel                    display the path of the default kernel
      --default-index                     display the index of the default kernel
      --default-title                     display the title of the default kernel
      --env=path                          path for environment data
      --grub2                             configure grub2 bootloader
      --info=kernel-path                  display boot information for specified kernel
      --initrd=initrd-path                initrd image for the new kernel
  -i, --extra-initrd=initrd-path          auxiliary initrd image for things other than the new kernel
      --make-default                      make the newly added entry the default boot entry
  -o, --output-file=path                  path to output updated config file ("-" for stdout)
      --remove-args=STRING                remove kernel arguments
      --remove-kernel=kernel-path         remove all entries for the specified kernel
      --set-default=kernel-path           make the first entry referencing the specified kernel the default
      --set-default-index=entry-index     make the given entry index the default entry
      --title=entry-title                 title to use for the new kernel entry
      --update-kernel=kernel-path         updated information for the specified kernel
      --zipl                              configure zipl bootloader
  -b, --bls-directory                     path to directory containing the BootLoaderSpec fragment files

Help options:
  -?, --help                              Show this help message

EOF
}

OPTS="$(getopt -o c:i:o:b:? --long help,add-kernel:,args:,bad-image-okay,\
config-file:,copy-default,default-kernel,default-index,default-title,env:,\
grub2,info:,initrd:,extra-initrd:,make-default,output-file:,remove-args:,\
remove-kernel:,set-default:,set-default-index:,title:,update-kernel:,zipl,\
bls-directory:,add-kernel:,add-multiboot:,mbargs:,mounts:,boot-filesystem:,\
bootloader-probe,debug,devtree,devtreedir:,elilo,efi,extlinux,grub,lilo,\
output-file:,remove-mbargs:,remove-multiboot:,silo,yaboot -n ${SCRIPTNAME} -- "$@")"

[[ $? = 0 ]] || exit 1

eval set -- "$OPTS"

while [ ${#} -gt 0 ]; do
    case "$1" in
        --help|-h)
            print_usage
            exit 0
            ;;
        --add-kernel)
            kernel="${2}"
            shift
            ;;
        --args)
            args="${2}"
            shift
            ;;
        --bad-image-okay)
            bad_image=true
            ;;
        --config-file|-c)
            zipl_config="${2}"
            shift
            ;;
        --copy-default)
            copy_default=true
            ;;
        --default-kernel)
            display_default="kernel"
            ;;
        --default-index)
            display_default="index"
            ;;
        --default-title)
            display_default="title"
            ;;
        --env)
            env="${2}"
            shift
            ;;
        --grub2)
            bootloader="grub2"
            ;;
        --info)
            display_info="${2}"
            shift
            ;;
        --initrd)
            initrd="${2}"
            shift
            ;;
        --extra-initrd|-i)
            extra_initrd=" /${2}"
            shift
            ;;
        --make-default)
            make_default=true
            ;;
        --output-file|-o)
            output_file="${2}"
            shift
            ;;
        --remove-args)
            remove_args="${2}"
            shift
            ;;
        --remove-kernel)
            remove_kernel="${2}"
            shift
            ;;
        --set-default)
            set_default="${2}"
            shift
            ;;
        --set-default-index)
            set_default="${2}"
            shift
            ;;
        --title)
            title="${2}"
            shift
            ;;
        --update-kernel)
            update_kernel="${2}"
            shift
            ;;
        --zipl)
            bootloader="zipl"
            ;;
        --bls-directory|-b)
            blsdir="${2}"
	    shift
	    ;;
        --add-kernel|--add-multiboot|--mbargs|--mounts|--boot-filesystem|\
        --bootloader-probe|--debug|--devtree|--devtreedir|--elilo|--efi|\
        --extlinux|--grub|--lilo|--output-file|--remove-mbargs|--silo|\
        --remove-multiboot|--slilo|--yaboot)
            echo
            echo "${SCRIPTNAME}: the option \"${1}\" was deprecated" >&2
            echo "Try '${SCRIPTNAME} --help' to list supported options" >&2
            echo
	    exit 1
	    ;;
        --)
            shift
            break
            ;;
        *)
            echo
            echo "${SCRIPTNAME}: invalid option \"${1}\"" >&2
            echo "Try '${SCRIPTNAME} --help' for more information" >&2
            echo
            exit 1
            ;;
    esac
    shift
done

if [[ -z $blsdir ]]; then
    blsdir="/boot/loader/entries"
fi

if [[ -z $env ]]; then
    env="/boot/grub2/grubenv"
fi

if [[ -z $zipl_config ]]; then
    zipl_config="/etc/zipl.conf"
fi

get_bls_values

default_index="$(get_default_index)"

if [[ -n $display_default ]]; then
    display_default_value
fi

if [[ -n $display_info ]]; then
    display_info_values "${display_info}"
fi

if [[ $bootloader = grub2 ]]; then
    remove_var_prefix
fi

if [[ -n $kernel ]]; then
    if [[ $copy_default = "true" ]]; then
	opts="${bls_options[$default_index]}"
	if [[ -n $args ]]; then
	    opts="${opts} ${args}"
	fi
    else
	opts="${args}"
    fi

    add_bls_fragment "${kernel}" "${title}" "${opts}" "${initrd}" \
                     "${extra_initrd}"
fi

if [[ -n $remove_kernel ]]; then
    remove_bls_fragment "${remove_kernel}"
fi

if [[ -n $update_kernel ]]; then
    update_bls_fragment "${update_kernel}" "${remove_args}" "${args}" "${initrd}"
fi

if [[ -n $set_default ]]; then
    set_default_bls "${set_default}"
fi

exit 0
1	niro	3141	#!/bin/bash
2			#
3			# grubby wrapper to manage BootLoaderSpec files
4			#
5			#
6			# Copyright 2018 Red Hat, Inc. All rights reserved.
7			#
8			# This program is free software; you can redistribute it and/or modify
9			# it under the terms of the GNU General Public License as published by
10			# the Free Software Foundation; either version 2 of the License, or
11			# (at your option) any later version.
12			#
13			# This program is distributed in the hope that it will be useful,
14			# but WITHOUT ANY WARRANTY; without even the implied warranty of
15			# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16			# GNU General Public License for more details.
17			#
18			# You should have received a copy of the GNU General Public License
19			# along with this program. If not, see <http://www.gnu.org/licenses/>.
20
21			readonly SCRIPTNAME="${0##*/}"
22
23			CMDLINE_LINUX_DEBUG=" systemd.log_level=debug systemd.log_target=kmsg"
24			LINUX_DEBUG_VERSION_POSTFIX="_with_debugging"
25			LINUX_DEBUG_TITLE_POSTFIX=" with debugging"
26
27			declare -a bls_file
28			declare -a bls_title
29			declare -a bls_version
30			declare -a bls_linux
31			declare -a bls_initrd
32			declare -a bls_options
33			declare -a bls_id
34
35			[[ -f /etc/sysconfig/kernel ]] && . /etc/sysconfig/kernel
36			[[ -f /etc/os-release ]] && . /etc/os-release
37			read MACHINE_ID < /etc/machine-id
38			arch=$(uname -m)
39
40			if [[ $arch = 's390' \|\| $arch = 's390x' ]]; then
41			bootloader="zipl"
42			else
43			bootloader="grub2"
44			fi
45
46			print_error() {
47			echo "$1" >&2
48			exit 1
49			}
50
51			if [[ ${#} = 0 ]]; then
52			print_error "no action specified"
53			fi
54
55			get_bls_value() {
56			local bls="$1" && shift
57			local key="$1" && shift
58
59	niro	3146	echo "$(grep "^${key}[ \t]" "${bls}" \| sed -e "s!^${key}[ \t]*!!")"
60	niro	3141	}
61
62			set_bls_value() {
63			local bls="$1" && shift
64			local key="$1" && shift
65			local value="$1" && shift
66
67	niro	3146	sed -i -e "s!^${key}.*!${key} ${value}!" "${bls}"
68	niro	3141	}
69
70			append_bls_value() {
71			local bls="$1" && shift
72			local key="$1" && shift
73			local value="$1" && shift
74
75			old_value="$(get_bls_value ${bls} ${key})"
76			set_bls_value "${bls}" "${key}" "${old_value}${value}"
77			}
78
79			get_bls_values() {
80			count=0
81			for bls in $(ls -vr ${blsdir}/*.conf 2> /dev/null); do
82			bls_file[$count]="${bls}"
83			bls_title[$count]="$(get_bls_value ${bls} title)"
84			bls_version[$count]="$(get_bls_value ${bls} version)"
85			bls_linux[$count]="$(get_bls_value ${bls} linux)"
86			bls_initrd[$count]="$(get_bls_value ${bls} initrd)"
87			bls_options[$count]="$(get_bls_value ${bls} options)"
88			bls_id[$count]="$(get_bls_value ${bls} id)"
89
90			count=$((count+1))
91			done
92			}
93
94			get_default_index() {
95			local default=""
96			local index="-1"
97			local title=""
98			local version=""
99			if [[ $bootloader = "grub2" ]]; then
100			default="$(grep '^saved_entry=' ${env} \| sed -e 's/^saved_entry=//')"
101			else
102			default="$(grep '^default=' ${zipl_config} \| sed -e 's/^default=//')"
103			fi
104
105			if [[ -z $default ]]; then
106			index=0
107			elif [[ $default =~ ^[0-9]+$ ]]; then
108			index="$default"
109			fi
110
111			# GRUB2 and zipl use different fields to set the default entry
112			if [[ $bootloader = "grub2" ]]; then
113			title="$default"
114			else
115			version="$default"
116			fi
117
118			for i in ${!bls_file[@]}; do
119			if [[ $title = ${bls_title[$i]} \|\| $version = ${bls_version[$i]} \|\|
120			$i -eq $index ]]; then
121			echo $i
122			return
123			fi
124			done
125			}
126
127			display_default_value() {
128			case "$display_default" in
129			kernel)
130			echo "${bls_linux[$default_index]}"
131			exit 0
132			;;
133			index)
134			echo "$default_index"
135			exit 0
136			;;
137			title)
138			echo "${bls_title[$default_index]}"
139			exit 0
140			;;
141			esac
142			}
143
144			param_to_indexes() {
145			local param="$1"
146			local indexes=""
147
148			if [[ $param = "ALL" ]]; then
149			for i in ${!bls_file[@]}; do
150			indexes="$indexes $i"
151			done
152			echo -n $indexes
153			return
154			fi
155
156			if [[ $param = "DEFAULT" ]]; then
157			echo -n $default_index
158			return
159			fi
160
161			for i in ${!bls_file[@]}; do
162	niro	3145	if [[ $param = "${bls_linux[$i]}" \|\| "/${param##*/}" = "${bls_linux[$i]}" ]]; then
163	niro	3141	indexes="$indexes $i"
164			fi
165
166			if [[ $param = "TITLE=${bls_title[$i]}" ]]; then
167			indexes="$indexes $i"
168			fi
169
170			if [[ $param = $i ]]; then
171			indexes="$indexes $i"
172			fi
173			done
174
175			if [[ -n $indexes ]]; then
176			echo -n $indexes
177			return
178			fi
179
180			echo -n "-1"
181			}
182
183			display_info_values() {
184			local indexes=($(param_to_indexes "$1"))
185
186			for i in ${indexes[*]}; do
187			echo "index=$i"
188			echo "kernel=${bls_linux[$i]}"
189			echo "args=\"${bls_options[$i]}\""
190			echo "initrd=${bls_initrd[$i]}"
191			echo "title=${bls_title[$i]}"
192			done
193			exit 0
194			}
195
196			mkbls() {
197			local kernel=$1 && shift
198			local kernelver=$1 && shift
199			local datetime=$1 && shift
200
201			local debugname=""
202			local flavor=""
203
204			if [[ $kernelver == \+ ]] ; then
205			local flavor=-"${kernelver##*+}"
206			if [[ $flavor == "-debug" ]]; then
207			local debugname="with debugging"
208			local debugid="-debug"
209			fi
210			fi
211
212			cat <<EOF
213			title ${NAME} (${kernelver}) ${VERSION}${debugname}
214			version ${kernelver}${debugid}
215			linux ${kernel}
216			initrd /initramfs-${kernelver}.img
217			options \$kernelopts
218			id ${ID}-${datetime}-${kernelver}${debugid}
219			grub_users \$grub_users
220			grub_arg --unrestricted
221			grub_class kernel${flavor}
222			EOF
223			}
224
225			remove_bls_fragment() {
226			local indexes=($(param_to_indexes "$1"))
227
228			if [[ $indexes = "-1" ]]; then
229			print_error "The param $1 is incorrect"
230			fi
231
232			for i in ${indexes[*]}; do
233			rm -f "${bls_file[$i]}"
234			done
235
236			get_bls_values
237	niro	3144
238			update_grubcfg
239	niro	3141	}
240
241			add_bls_fragment() {
242			local kernel="$1" && shift
243			local title="$1" && shift
244			local options="$1" && shift
245			local initrd="$1" && shift
246			local extra_initrd="$1" && shift
247
248			if [[ $kernel = "vmlinuz-" ]]; then
249			kernelver="${kernel##*/vmlinuz-}"
250	niro	3145	prefix="vmlinuz-"
251	niro	3141	else
252			kernelver="${kernel##*/}"
253			fi
254
255	niro	3145	if [[ ! -f "/boot/${prefix}${kernelver}" ]] &&
256	niro	3141	[[ $bad_image != "true" ]]; then
257			print_error "The ${kernelver} kernel isn't installed in the machine"
258			fi
259
260			if [[ -z $title ]]; then
261			print_error "The kernel title must be specified"
262			fi
263
264			if [[ ! -d $blsdir ]]; then
265			install -m 700 -d "${blsdir}"
266			fi
267
268			bls_target="${blsdir}/${MACHINE_ID}-${kernelver}.conf"
269			kernel_dir="/lib/modules/${kernelver}"
270			if [[ -f "${kernel_dir}/bls.conf" ]]; then
271			cp -aT "${kernel_dir}/bls.conf" "${bls_target}" \|\| exit $?
272			else
273			if [[ -d $kernel_dir ]]; then
274			datetime="$(date -u +%Y%m%d%H%M%S -d "$(stat -c '%y' "${kernel_dir}")")"
275			else
276			datetime=0
277			fi
278			mkbls "${kernel}" "${kernelver}" "${datetime}" > "${bls_target}"
279			fi
280
281			if [[ -n $title ]]; then
282			set_bls_value "${bls_target}" "title" "${title}"
283			fi
284
285			if [[ -n $options ]]; then
286			set_bls_value "${bls_target}" "options" "${options}"
287			fi
288
289			if [[ -n $initrd ]]; then
290			set_bls_value "${bls_target}" "initrd" "${initrd}"
291			fi
292
293			if [[ -n $extra_initrd ]]; then
294			append_bls_value "${bls_target}" "initrd" "${extra_initrd}"
295			fi
296
297			if [[ $MAKEDEBUG = "yes" ]]; then
298			arch="$(uname -m)"
299			bls_debug="$(echo ${bls_target} \| sed -e "s/\.${arch}/-debug.${arch}/")"
300			cp -aT "${bls_target}" "${bls_debug}"
301			append_bls_value "${bls_debug}" "title" "${LINUX_DEBUG_TITLE_POSTFIX}"
302			append_bls_value "${bls_debug}" "version" "${LINUX_DEBUG_VERSION_POSTFIX}"
303			append_bls_value "${bls_debug}" "options" "${CMDLINE_LINUX_DEBUG}"
304			blsid="$(get_bls_value ${bls_debug} "id" \| sed -e "s/\.${arch}/-debug.${arch}/")"
305			set_bls_value "${bls_debug}" "id" "${blsid}"
306			fi
307
308			get_bls_values
309
310			if [[ $make_default = "true" ]]; then
311			set_default_bls "TITLE=${title}"
312			fi
313
314	niro	3144	update_grubcfg
315
316	niro	3141	exit 0
317			}
318
319			update_args() {
320			local args=$1 && shift
321			local remove_args=($1) && shift
322			local add_args=($1) && shift
323
324			for arg in ${remove_args[*]}; do
325	niro	3146	args="$(echo $args \| sed -e "s!$arg[^ ]*!!")"
326	niro	3141	done
327
328			for arg in ${add_args[*]}; do
329			if [[ $arg = "=" ]]; then
330			value=${arg##*=}
331			key=${arg%%=$value}
332			exist=$(echo $args \| grep "${key}=")
333			if [[ -n $exist ]]; then
334	niro	3146	args="$(echo $args \| sed -e "s!$key=[^ ]*!$key=$value!")"
335	niro	3141	else
336			args="$args $key=$value"
337			fi
338			else
339			exist=$(echo $args \| grep $arg)
340			if ! [[ -n $exist ]]; then
341			args="$args $arg"
342			fi
343			fi
344			done
345
346			echo ${args}
347			}
348
349			update_bls_fragment() {
350			local indexes=($(param_to_indexes "$1")) && shift
351			local remove_args=$1 && shift
352			local add_args=$1 && shift
353			local initrd=$1 && shift
354
355			for i in ${indexes[*]}; do
356			if [[ -n $remove_args \|\| -n $add_args ]]; then
357			local new_args="$(update_args "${bls_options[$i]}" "${remove_args}" "${add_args}")"
358			set_bls_value "${bls_file[$i]}" "options" "${new_args}"
359			fi
360
361			if [[ -n $initrd ]]; then
362			set_bls_value "${bls_file[$i]}" "initrd" "${initrd}"
363			fi
364			done
365	niro	3144
366			update_grubcfg
367	niro	3141	}
368
369			set_default_bls() {
370			local index=($(param_to_indexes "$1"))
371
372			if [[ $bootloader = grub2 ]]; then
373			grub2-editenv "${env}" set saved_entry="${bls_title[$index]}"
374			else
375			local default="${bls_version[$index]}"
376			local current="$(grep '^default=' ${zipl_config} \| sed -e 's/^default=//')"
377			if [[ -n $current ]]; then
378			sed -i -e "s,^default=.*,default=${default}," "${zipl_config}"
379			else
380			echo "default=${default}" >> "${zipl_config}"
381			fi
382			fi
383			}
384
385			remove_var_prefix() {
386			if [[ -n $remove_kernel && $remove_kernel =~ ^/ ]]; then
387			remove_kernel="/${remove_kernel##*/}"
388			fi
389
390			if [[ -n $initrd ]]; then
391			initrd="/${initrd##*/}"
392			fi
393
394			if [[ -n $extra_initrd ]]; then
395			extra_initrd=" /${extra_initrd##*/}"
396			fi
397
398			if [[ -n $kernel ]]; then
399			kernel="/${kernel##*/}"
400			fi
401
402			if [[ -n $update_kernel && $update_kernel =~ ^/ ]]; then
403			update_kernel="/${update_kernel##*/}"
404			fi
405			}
406
407	niro	3144	update_grubcfg()
408			{
409			if [[ $arch = 'ppc64' \|\| $arch = 'ppc64le' ]]; then
410			grub2-mkconfig -o /boot/grub2/grub.cfg >& /dev/null
411			fi
412			}
413
414	niro	3141	print_usage()
415			{
416			cat <<EOF
417			Usage: grubby [OPTION...]
418			--add-kernel=kernel-path add an entry for the specified kernel
419			--args=args default arguments for the new kernel or new arguments for kernel being updated)
420			--bad-image-okay don't sanity check images in boot entries (for testing only)
421			-c, --config-file=path path to grub config file to update ("-" for stdin)
422			--copy-default use the default boot entry as a template for the new entry being added; if the default is not a linux image, or if the kernel referenced by the default image does not exist, the
423			first linux entry whose kernel does exist is used as the template
424			--default-kernel display the path of the default kernel
425			--default-index display the index of the default kernel
426			--default-title display the title of the default kernel
427			--env=path path for environment data
428			--grub2 configure grub2 bootloader
429			--info=kernel-path display boot information for specified kernel
430			--initrd=initrd-path initrd image for the new kernel
431			-i, --extra-initrd=initrd-path auxiliary initrd image for things other than the new kernel
432			--make-default make the newly added entry the default boot entry
433			-o, --output-file=path path to output updated config file ("-" for stdout)
434			--remove-args=STRING remove kernel arguments
435			--remove-kernel=kernel-path remove all entries for the specified kernel
436			--set-default=kernel-path make the first entry referencing the specified kernel the default
437			--set-default-index=entry-index make the given entry index the default entry
438			--title=entry-title title to use for the new kernel entry
439			--update-kernel=kernel-path updated information for the specified kernel
440			--zipl configure zipl bootloader
441			-b, --bls-directory path to directory containing the BootLoaderSpec fragment files
442
443			Help options:
444			-?, --help Show this help message
445
446			EOF
447			}
448
449			OPTS="$(getopt -o c:i:o:b:? --long help,add-kernel:,args:,bad-image-okay,\
450			config-file:,copy-default,default-kernel,default-index,default-title,env:,\
451			grub2,info:,initrd:,extra-initrd:,make-default,output-file:,remove-args:,\
452			remove-kernel:,set-default:,set-default-index:,title:,update-kernel:,zipl,\
453			bls-directory:,add-kernel:,add-multiboot:,mbargs:,mounts:,boot-filesystem:,\
454			bootloader-probe,debug,devtree,devtreedir:,elilo,efi,extlinux,grub,lilo,\
455			output-file:,remove-mbargs:,remove-multiboot:,silo,yaboot -n ${SCRIPTNAME} -- "$@")"
456
457			[[ $? = 0 ]] \|\| exit 1
458
459			eval set -- "$OPTS"
460
461			while [ ${#} -gt 0 ]; do
462			case "$1" in
463			--help\|-h)
464			print_usage
465			exit 0
466			;;
467			--add-kernel)
468			kernel="${2}"
469			shift
470			;;
471			--args)
472			args="${2}"
473			shift
474			;;
475			--bad-image-okay)
476			bad_image=true
477			;;
478			--config-file\|-c)
479			zipl_config="${2}"
480			shift
481			;;
482			--copy-default)
483			copy_default=true
484			;;
485			--default-kernel)
486			display_default="kernel"
487			;;
488			--default-index)
489			display_default="index"
490			;;
491			--default-title)
492			display_default="title"
493			;;
494			--env)
495			env="${2}"
496			shift
497			;;
498			--grub2)
499			bootloader="grub2"
500			;;
501			--info)
502			display_info="${2}"
503			shift
504			;;
505			--initrd)
506			initrd="${2}"
507			shift
508			;;
509			--extra-initrd\|-i)
510			extra_initrd=" /${2}"
511			shift
512			;;
513			--make-default)
514			make_default=true
515			;;
516			--output-file\|-o)
517			output_file="${2}"
518			shift
519			;;
520			--remove-args)
521			remove_args="${2}"
522			shift
523			;;
524			--remove-kernel)
525			remove_kernel="${2}"
526			shift
527			;;
528			--set-default)
529			set_default="${2}"
530			shift
531			;;
532			--set-default-index)
533			set_default="${2}"
534			shift
535			;;
536			--title)
537			title="${2}"
538			shift
539			;;
540			--update-kernel)
541			update_kernel="${2}"
542			shift
543			;;
544			--zipl)
545			bootloader="zipl"
546			;;
547			--bls-directory\|-b)
548			blsdir="${2}"
549			shift
550			;;
551			--add-kernel\|--add-multiboot\|--mbargs\|--mounts\|--boot-filesystem\|\
552			--bootloader-probe\|--debug\|--devtree\|--devtreedir\|--elilo\|--efi\|\
553			--extlinux\|--grub\|--lilo\|--output-file\|--remove-mbargs\|--silo\|\
554			--remove-multiboot\|--slilo\|--yaboot)
555			echo
556			echo "${SCRIPTNAME}: the option \"${1}\" was deprecated" >&2
557			echo "Try '${SCRIPTNAME} --help' to list supported options" >&2
558			echo
559			exit 1
560			;;
561			--)
562			shift
563			break
564			;;
565			*)
566			echo
567			echo "${SCRIPTNAME}: invalid option \"${1}\"" >&2
568			echo "Try '${SCRIPTNAME} --help' for more information" >&2
569			echo
570			exit 1
571			;;
572			esac
573			shift
574			done
575
576			if [[ -z $blsdir ]]; then
577			blsdir="/boot/loader/entries"
578			fi
579
580			if [[ -z $env ]]; then
581			env="/boot/grub2/grubenv"
582			fi
583
584			if [[ -z $zipl_config ]]; then
585			zipl_config="/etc/zipl.conf"
586			fi
587
588			get_bls_values
589
590			default_index="$(get_default_index)"
591
592			if [[ -n $display_default ]]; then
593			display_default_value
594			fi
595
596			if [[ -n $display_info ]]; then
597			display_info_values "${display_info}"
598			fi
599
600			if [[ $bootloader = grub2 ]]; then
601			remove_var_prefix
602			fi
603
604			if [[ -n $kernel ]]; then
605			if [[ $copy_default = "true" ]]; then
606			opts="${bls_options[$default_index]}"
607			if [[ -n $args ]]; then
608			opts="${opts} ${args}"
609			fi
610			else
611			opts="${args}"
612			fi
613
614			add_bls_fragment "${kernel}" "${title}" "${opts}" "${initrd}" \
615			"${extra_initrd}"
616			fi
617
618			if [[ -n $remove_kernel ]]; then
619			remove_bls_fragment "${remove_kernel}"
620			fi
621
622			if [[ -n $update_kernel ]]; then
623			update_bls_fragment "${update_kernel}" "${remove_args}" "${args}" "${initrd}"
624			fi
625
626			if [[ -n $set_default ]]; then
627			set_default_bls "${set_default}"
628			fi
629
630			exit 0