Contents 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[$i]}" ]]; then
            indexes="$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
}

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-}"
    else
	kernelver="${kernel##*/}"
    fi

    if [[ ! -d "/lib/modules/${kernelver}" || ! -f "/boot/vmlinuz-${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

    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
}

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
}

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	#!/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="$1" && shift
58
59	echo "$(grep "^${key}[ \t]" "${bls}" \| sed -e "s,^${key}[ \t]*,,")"
60	}
61
62	set_bls_value() {
63	local bls="$1" && shift
64	local key="$1" && shift
65	local value="$1" && shift
66
67	sed -i -e "s,^${key}.*,${key} ${value}," "${bls}"
68	}
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	if [[ $param = "${bls_linux[$i]}" ]]; then
163	indexes="$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	}
238
239	add_bls_fragment() {
240	local kernel="$1" && shift
241	local title="$1" && shift
242	local options="$1" && shift
243	local initrd="$1" && shift
244	local extra_initrd="$1" && shift
245
246	if [[ $kernel = "vmlinuz-" ]]; then
247	kernelver="${kernel##*/vmlinuz-}"
248	else
249	kernelver="${kernel##*/}"
250	fi
251
252	if [[ ! -d "/lib/modules/${kernelver}" \|\| ! -f "/boot/vmlinuz-${kernelver}" ]] &&
253	[[ $bad_image != "true" ]]; then
254	print_error "The ${kernelver} kernel isn't installed in the machine"
255	fi
256
257	if [[ -z $title ]]; then
258	print_error "The kernel title must be specified"
259	fi
260
261	if [[ ! -d $blsdir ]]; then
262	install -m 700 -d "${blsdir}"
263	fi
264
265	bls_target="${blsdir}/${MACHINE_ID}-${kernelver}.conf"
266	kernel_dir="/lib/modules/${kernelver}"
267	if [[ -f "${kernel_dir}/bls.conf" ]]; then
268	cp -aT "${kernel_dir}/bls.conf" "${bls_target}" \|\| exit $?
269	else
270	if [[ -d $kernel_dir ]]; then
271	datetime="$(date -u +%Y%m%d%H%M%S -d "$(stat -c '%y' "${kernel_dir}")")"
272	else
273	datetime=0
274	fi
275	mkbls "${kernel}" "${kernelver}" "${datetime}" > "${bls_target}"
276	fi
277
278	if [[ -n $title ]]; then
279	set_bls_value "${bls_target}" "title" "${title}"
280	fi
281
282	if [[ -n $options ]]; then
283	set_bls_value "${bls_target}" "options" "${options}"
284	fi
285
286	if [[ -n $initrd ]]; then
287	set_bls_value "${bls_target}" "initrd" "${initrd}"
288	fi
289
290	if [[ -n $extra_initrd ]]; then
291	append_bls_value "${bls_target}" "initrd" "${extra_initrd}"
292	fi
293
294	if [[ $MAKEDEBUG = "yes" ]]; then
295	arch="$(uname -m)"
296	bls_debug="$(echo ${bls_target} \| sed -e "s/\.${arch}/-debug.${arch}/")"
297	cp -aT "${bls_target}" "${bls_debug}"
298	append_bls_value "${bls_debug}" "title" "${LINUX_DEBUG_TITLE_POSTFIX}"
299	append_bls_value "${bls_debug}" "version" "${LINUX_DEBUG_VERSION_POSTFIX}"
300	append_bls_value "${bls_debug}" "options" "${CMDLINE_LINUX_DEBUG}"
301	blsid="$(get_bls_value ${bls_debug} "id" \| sed -e "s/\.${arch}/-debug.${arch}/")"
302	set_bls_value "${bls_debug}" "id" "${blsid}"
303	fi
304
305	get_bls_values
306
307	if [[ $make_default = "true" ]]; then
308	set_default_bls "TITLE=${title}"
309	fi
310
311	exit 0
312	}
313
314	update_args() {
315	local args=$1 && shift
316	local remove_args=($1) && shift
317	local add_args=($1) && shift
318
319	for arg in ${remove_args[*]}; do
320	args="$(echo $args \| sed -e "s,$arg[^ ]*,,")"
321	done
322
323	for arg in ${add_args[*]}; do
324	if [[ $arg = "=" ]]; then
325	value=${arg##*=}
326	key=${arg%%=$value}
327	exist=$(echo $args \| grep "${key}=")
328	if [[ -n $exist ]]; then
329	args="$(echo $args \| sed -e "s,$key=[^ ]*,$key=$value,")"
330	else
331	args="$args $key=$value"
332	fi
333	else
334	exist=$(echo $args \| grep $arg)
335	if ! [[ -n $exist ]]; then
336	args="$args $arg"
337	fi
338	fi
339	done
340
341	echo ${args}
342	}
343
344	update_bls_fragment() {
345	local indexes=($(param_to_indexes "$1")) && shift
346	local remove_args=$1 && shift
347	local add_args=$1 && shift
348	local initrd=$1 && shift
349
350	for i in ${indexes[*]}; do
351	if [[ -n $remove_args \|\| -n $add_args ]]; then
352	local new_args="$(update_args "${bls_options[$i]}" "${remove_args}" "${add_args}")"
353	set_bls_value "${bls_file[$i]}" "options" "${new_args}"
354	fi
355
356	if [[ -n $initrd ]]; then
357	set_bls_value "${bls_file[$i]}" "initrd" "${initrd}"
358	fi
359	done
360	}
361
362	set_default_bls() {
363	local index=($(param_to_indexes "$1"))
364
365	if [[ $bootloader = grub2 ]]; then
366	grub2-editenv "${env}" set saved_entry="${bls_title[$index]}"
367	else
368	local default="${bls_version[$index]}"
369	local current="$(grep '^default=' ${zipl_config} \| sed -e 's/^default=//')"
370	if [[ -n $current ]]; then
371	sed -i -e "s,^default=.*,default=${default}," "${zipl_config}"
372	else
373	echo "default=${default}" >> "${zipl_config}"
374	fi
375	fi
376	}
377
378	remove_var_prefix() {
379	if [[ -n $remove_kernel && $remove_kernel =~ ^/ ]]; then
380	remove_kernel="/${remove_kernel##*/}"
381	fi
382
383	if [[ -n $initrd ]]; then
384	initrd="/${initrd##*/}"
385	fi
386
387	if [[ -n $extra_initrd ]]; then
388	extra_initrd=" /${extra_initrd##*/}"
389	fi
390
391	if [[ -n $kernel ]]; then
392	kernel="/${kernel##*/}"
393	fi
394
395	if [[ -n $update_kernel && $update_kernel =~ ^/ ]]; then
396	update_kernel="/${update_kernel##*/}"
397	fi
398	}
399
400	print_usage()
401	{
402	cat <<EOF
403	Usage: grubby [OPTION...]
404	--add-kernel=kernel-path add an entry for the specified kernel
405	--args=args default arguments for the new kernel or new arguments for kernel being updated)
406	--bad-image-okay don't sanity check images in boot entries (for testing only)
407	-c, --config-file=path path to grub config file to update ("-" for stdin)
408	--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
409	first linux entry whose kernel does exist is used as the template
410	--default-kernel display the path of the default kernel
411	--default-index display the index of the default kernel
412	--default-title display the title of the default kernel
413	--env=path path for environment data
414	--grub2 configure grub2 bootloader
415	--info=kernel-path display boot information for specified kernel
416	--initrd=initrd-path initrd image for the new kernel
417	-i, --extra-initrd=initrd-path auxiliary initrd image for things other than the new kernel
418	--make-default make the newly added entry the default boot entry
419	-o, --output-file=path path to output updated config file ("-" for stdout)
420	--remove-args=STRING remove kernel arguments
421	--remove-kernel=kernel-path remove all entries for the specified kernel
422	--set-default=kernel-path make the first entry referencing the specified kernel the default
423	--set-default-index=entry-index make the given entry index the default entry
424	--title=entry-title title to use for the new kernel entry
425	--update-kernel=kernel-path updated information for the specified kernel
426	--zipl configure zipl bootloader
427	-b, --bls-directory path to directory containing the BootLoaderSpec fragment files
428
429	Help options:
430	-?, --help Show this help message
431
432	EOF
433	}
434
435	OPTS="$(getopt -o c:i:o:b:? --long help,add-kernel:,args:,bad-image-okay,\
436	config-file:,copy-default,default-kernel,default-index,default-title,env:,\
437	grub2,info:,initrd:,extra-initrd:,make-default,output-file:,remove-args:,\
438	remove-kernel:,set-default:,set-default-index:,title:,update-kernel:,zipl,\
439	bls-directory:,add-kernel:,add-multiboot:,mbargs:,mounts:,boot-filesystem:,\
440	bootloader-probe,debug,devtree,devtreedir:,elilo,efi,extlinux,grub,lilo,\
441	output-file:,remove-mbargs:,remove-multiboot:,silo,yaboot -n ${SCRIPTNAME} -- "$@")"
442
443	[[ $? = 0 ]] \|\| exit 1
444
445	eval set -- "$OPTS"
446
447	while [ ${#} -gt 0 ]; do
448	case "$1" in
449	--help\|-h)
450	print_usage
451	exit 0
452	;;
453	--add-kernel)
454	kernel="${2}"
455	shift
456	;;
457	--args)
458	args="${2}"
459	shift
460	;;
461	--bad-image-okay)
462	bad_image=true
463	;;
464	--config-file\|-c)
465	zipl_config="${2}"
466	shift
467	;;
468	--copy-default)
469	copy_default=true
470	;;
471	--default-kernel)
472	display_default="kernel"
473	;;
474	--default-index)
475	display_default="index"
476	;;
477	--default-title)
478	display_default="title"
479	;;
480	--env)
481	env="${2}"
482	shift
483	;;
484	--grub2)
485	bootloader="grub2"
486	;;
487	--info)
488	display_info="${2}"
489	shift
490	;;
491	--initrd)
492	initrd="${2}"
493	shift
494	;;
495	--extra-initrd\|-i)
496	extra_initrd=" /${2}"
497	shift
498	;;
499	--make-default)
500	make_default=true
501	;;
502	--output-file\|-o)
503	output_file="${2}"
504	shift
505	;;
506	--remove-args)
507	remove_args="${2}"
508	shift
509	;;
510	--remove-kernel)
511	remove_kernel="${2}"
512	shift
513	;;
514	--set-default)
515	set_default="${2}"
516	shift
517	;;
518	--set-default-index)
519	set_default="${2}"
520	shift
521	;;
522	--title)
523	title="${2}"
524	shift
525	;;
526	--update-kernel)
527	update_kernel="${2}"
528	shift
529	;;
530	--zipl)
531	bootloader="zipl"
532	;;
533	--bls-directory\|-b)
534	blsdir="${2}"
535	shift
536	;;
537	--add-kernel\|--add-multiboot\|--mbargs\|--mounts\|--boot-filesystem\|\
538	--bootloader-probe\|--debug\|--devtree\|--devtreedir\|--elilo\|--efi\|\
539	--extlinux\|--grub\|--lilo\|--output-file\|--remove-mbargs\|--silo\|\
540	--remove-multiboot\|--slilo\|--yaboot)
541	echo
542	echo "${SCRIPTNAME}: the option \"${1}\" was deprecated" >&2
543	echo "Try '${SCRIPTNAME} --help' to list supported options" >&2
544	echo
545	exit 1
546	;;
547	--)
548	shift
549	break
550	;;
551	*)
552	echo
553	echo "${SCRIPTNAME}: invalid option \"${1}\"" >&2
554	echo "Try '${SCRIPTNAME} --help' for more information" >&2
555	echo
556	exit 1
557	;;
558	esac
559	shift
560	done
561
562	if [[ -z $blsdir ]]; then
563	blsdir="/boot/loader/entries"
564	fi
565
566	if [[ -z $env ]]; then
567	env="/boot/grub2/grubenv"
568	fi
569
570	if [[ -z $zipl_config ]]; then
571	zipl_config="/etc/zipl.conf"
572	fi
573
574	get_bls_values
575
576	default_index="$(get_default_index)"
577
578	if [[ -n $display_default ]]; then
579	display_default_value
580	fi
581
582	if [[ -n $display_info ]]; then
583	display_info_values "${display_info}"
584	fi
585
586	if [[ $bootloader = grub2 ]]; then
587	remove_var_prefix
588	fi
589
590	if [[ -n $kernel ]]; then
591	if [[ $copy_default = "true" ]]; then
592	opts="${bls_options[$default_index]}"
593	if [[ -n $args ]]; then
594	opts="${opts} ${args}"
595	fi
596	else
597	opts="${args}"
598	fi
599
600	add_bls_fragment "${kernel}" "${title}" "${opts}" "${initrd}" \
601	"${extra_initrd}"
602	fi
603
604	if [[ -n $remove_kernel ]]; then
605	remove_bls_fragment "${remove_kernel}"
606	fi
607
608	if [[ -n $update_kernel ]]; then
609	update_bls_fragment "${update_kernel}" "${remove_args}" "${args}" "${initrd}"
610	fi
611
612	if [[ -n $set_default ]]; then
613	set_default_bls "${set_default}"
614	fi
615
616	exit 0