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kdump-lib.sh: reformat with shfmt 

This is a batch update done with:
shfmt -s -w kdump-lib.sh

Clean up code style and reduce code base size, no behaviour change.

Signed-off-by: Kairui Song <kasong@redhat.com>
Acked-by: Philipp Rudo <prudo@redhat.com>
This commit is contained in:
Kairui Song 2021-09-14 03:09:30 +08:00
parent 20089dddd5
commit 4cdce1f489
1 changed files with 557 additions and 553 deletions
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198
kdump-lib.sh
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@ -14,23 +14,25 @@ is_fadump_capable()
# Check if firmware-assisted dump is enabled # Check if firmware-assisted dump is enabled
# if no, fallback to kdump check # if no, fallback to kdump check
if [[ -f $FADUMP_ENABLED_SYS_NODE ]]; then if [[ -f $FADUMP_ENABLED_SYS_NODE ]]; then
rc=$(<$FADUMP_ENABLED_SYS_NODE) rc=$(< $FADUMP_ENABLED_SYS_NODE)
[[ $rc -eq 1 ]] && return 0 [[ $rc -eq 1 ]] && return 0
fi fi
return 1 return 1
} }
is_squash_available() { is_squash_available()
{
for kmodule in squashfs overlay loop; do for kmodule in squashfs overlay loop; do
if [[ -z "$KDUMP_KERNELVER" ]]; then if [[ -z $KDUMP_KERNELVER ]]; then
modprobe --dry-run $kmodule &>/dev/null || return 1 modprobe --dry-run $kmodule &> /dev/null || return 1
else else
modprobe -S "$KDUMP_KERNELVER" --dry-run $kmodule &>/dev/null || return 1 modprobe -S "$KDUMP_KERNELVER" --dry-run $kmodule &> /dev/null || return 1
fi fi
done done
} }
perror_exit() { perror_exit()
{
derror "$@" derror "$@"
exit 1 exit 1
} }
@ -54,7 +56,8 @@ is_generic_fence_kdump()
[[ $(kdump_get_conf_val fence_kdump_nodes) ]] [[ $(kdump_get_conf_val fence_kdump_nodes) ]]
} }
to_dev_name() { to_dev_name()
{
local dev="${1//\"/}" local dev="${1//\"/}"
case "$dev" in case "$dev" in
@ -66,6 +69,7 @@ to_dev_name() {
;; ;;
*) *)
echo "$dev" echo "$dev"
;;
esac esac
} }
@ -79,10 +83,10 @@ get_user_configured_dump_disk()
local _target local _target
_target=$(kdump_get_conf_val "ext[234]\|xfs\|btrfs\|minix\|raw") _target=$(kdump_get_conf_val "ext[234]\|xfs\|btrfs\|minix\|raw")
[[ -n "$_target" ]] && echo "$_target" && return [[ -n $_target ]] && echo "$_target" && return
_target=$(get_dracut_args_target "$(kdump_get_conf_val "dracut_args")") _target=$(get_dracut_args_target "$(kdump_get_conf_val "dracut_args")")
[[ -b "$_target" ]] && echo "$_target" [[ -b $_target ]] && echo "$_target"
} }
get_block_dump_target() get_block_dump_target()
@ -94,12 +98,12 @@ get_block_dump_target()
fi fi
_target=$(get_user_configured_dump_disk) _target=$(get_user_configured_dump_disk)
[[ -n "$_target" ]] && to_dev_name "$_target" && return [[ -n $_target ]] && to_dev_name "$_target" && return
# Get block device name from local save path # Get block device name from local save path
_path=$(get_save_path) _path=$(get_save_path)
_target=$(get_target_from_path "$_path") _target=$(get_target_from_path "$_path")
[[ -b "$_target" ]] && to_dev_name "$_target" [[ -b $_target ]] && to_dev_name "$_target"
} }
is_dump_to_rootfs() is_dump_to_rootfs()
@ -114,7 +118,7 @@ get_failure_action_target()
if is_dump_to_rootfs; then if is_dump_to_rootfs; then
# Get rootfs device name # Get rootfs device name
_target=$(get_root_fs_device) _target=$(get_root_fs_device)
[[ -b "$_target" ]] && to_dev_name "$_target" && return [[ -b $_target ]] && to_dev_name "$_target" && return
# Then, must be nfs root # Then, must be nfs root
echo "nfs" echo "nfs"
fi fi
@ -127,7 +131,7 @@ get_kdump_targets()
local kdump_targets local kdump_targets
_target=$(get_block_dump_target) _target=$(get_block_dump_target)
if [[ -n "$_target" ]]; then if [[ -n $_target ]]; then
kdump_targets=$_target kdump_targets=$_target
elif is_ssh_dump_target; then elif is_ssh_dump_target; then
kdump_targets="ssh" kdump_targets="ssh"
@ -137,7 +141,7 @@ get_kdump_targets()
# Add the root device if dump_to_rootfs is specified. # Add the root device if dump_to_rootfs is specified.
_root=$(get_failure_action_target) _root=$(get_failure_action_target)
if [[ -n "$_root" ]] && [[ "$kdump_targets" != "$_root" ]]; then if [[ -n $_root ]] && [[ $kdump_targets != "$_root" ]]; then
kdump_targets="$kdump_targets $_root" kdump_targets="$kdump_targets $_root"
fi fi
@ -169,13 +173,13 @@ get_bind_mount_source()
_fstype=$(get_mount_info FSTYPE target "$_mnt" -f) _fstype=$(get_mount_info FSTYPE target "$_mnt" -f)
# bind mount in fstab # bind mount in fstab
if [[ -d "$_src" ]] && [[ "$_fstype" = none ]] && (echo "$_opt" | grep -q "\bbind\b"); then if [[ -d $_src ]] && [[ $_fstype == none ]] && (echo "$_opt" | grep -q "\bbind\b"); then
echo "$_src$_path" && return echo "$_src$_path" && return
fi fi
# direct mount # direct mount
_src_nofsroot=$(get_mount_info SOURCE target "$_mnt" -v -f) _src_nofsroot=$(get_mount_info SOURCE target "$_mnt" -v -f)
if [[ $_src_nofsroot = "$_src" ]]; then if [[ $_src_nofsroot == "$_src" ]]; then
echo "$_mnt$_path" && return echo "$_mnt$_path" && return
fi fi
@ -184,7 +188,7 @@ get_bind_mount_source()
_mnt=$(get_mount_info TARGET source "$_src_nofsroot" -f) _mnt=$(get_mount_info TARGET source "$_src_nofsroot" -f)
# for btrfs, _fsroot will also contain the subvol value as well, strip it # for btrfs, _fsroot will also contain the subvol value as well, strip it
if [[ "$_fstype" = btrfs ]]; then if [[ $_fstype == btrfs ]]; then
local _subvol local _subvol
_subvol=${_opt#*subvol=} _subvol=${_opt#*subvol=}
_subvol=${_subvol%,*} _subvol=${_subvol%,*}
@ -209,10 +213,10 @@ get_kdump_mntpoint_from_target()
# mount under /kdumproot if dump target is not mounted in first kernel # mount under /kdumproot if dump target is not mounted in first kernel
# mount under /kdumproot/$_mntpoint in other cases in 2nd kernel. # mount under /kdumproot/$_mntpoint in other cases in 2nd kernel.
# systemd will be in charge to umount it. # systemd will be in charge to umount it.
if [[ -z "$_mntpoint" ]];then if [[ -z $_mntpoint ]]; then
_mntpoint="/kdumproot" _mntpoint="/kdumproot"
else else
if [[ "$_mntpoint" = "/" ]];then if [[ $_mntpoint == "/" ]]; then
_mntpoint="/sysroot" _mntpoint="/sysroot"
else else
_mntpoint="/kdumproot/$_mntpoint" _mntpoint="/kdumproot/$_mntpoint"
@ -223,7 +227,8 @@ get_kdump_mntpoint_from_target()
echo $_mntpoint | tr -s "/" echo $_mntpoint | tr -s "/"
} }
kdump_get_persistent_dev() { kdump_get_persistent_dev()
{
local dev="${1//\"/}" local dev="${1//\"/}"
case "$dev" in case "$dev" in
@ -261,7 +266,7 @@ is_hostname()
local _hostname local _hostname
_hostname=$(echo "$1" | grep ":") _hostname=$(echo "$1" | grep ":")
if [[ -n "$_hostname" ]]; then if [[ -n $_hostname ]]; then
return 1 return 1
fi fi
echo "$1" | grep -q "[a-zA-Z]" echo "$1" | grep -q "[a-zA-Z]"
@ -273,13 +278,12 @@ get_hwaddr()
if [[ -f "/sys/class/net/$1/address" ]]; then if [[ -f "/sys/class/net/$1/address" ]]; then
awk '{ print toupper($0) }' < "/sys/class/net/$1/address" awk '{ print toupper($0) }' < "/sys/class/net/$1/address"
elif [[ -d "/sys/class/net/$1" ]]; then elif [[ -d "/sys/class/net/$1" ]]; then
LC_ALL="" LANG="" ip -o link show "$1" 2>/dev/null | \ LC_ALL="" LANG="" ip -o link show "$1" 2> /dev/null |
awk '{ print toupper(gensub(/.*link\/[^ ]* ([[:alnum:]:]*).*/, awk '{ print toupper(gensub(/.*link\/[^ ]* ([[:alnum:]:]*).*/,
"\\1", 1)); }' "\\1", 1)); }'
fi fi
} }
# Get value by a field using "nmcli -g" # Get value by a field using "nmcli -g"
# Usage: get_nmcli_value_by_field <field> <nmcli command> # Usage: get_nmcli_value_by_field <field> <nmcli command>
# #
@ -318,36 +322,36 @@ get_nmcli_connection_apath_by_ifname()
get_ifcfg_by_device() get_ifcfg_by_device()
{ {
grep -E -i -l "^[[:space:]]*DEVICE=\"*${1}\"*[[:space:]]*$" \ grep -E -i -l "^[[:space:]]*DEVICE=\"*${1}\"*[[:space:]]*$" \
/etc/sysconfig/network-scripts/ifcfg-* 2>/dev/null | head -1 /etc/sysconfig/network-scripts/ifcfg-* 2> /dev/null | head -1
} }
get_ifcfg_by_hwaddr() get_ifcfg_by_hwaddr()
{ {
grep -E -i -l "^[[:space:]]*HWADDR=\"*${1}\"*[[:space:]]*$" \ grep -E -i -l "^[[:space:]]*HWADDR=\"*${1}\"*[[:space:]]*$" \
/etc/sysconfig/network-scripts/ifcfg-* 2>/dev/null | head -1 /etc/sysconfig/network-scripts/ifcfg-* 2> /dev/null | head -1
} }
get_ifcfg_by_uuid() get_ifcfg_by_uuid()
{ {
grep -E -i -l "^[[:space:]]*UUID=\"*${1}\"*[[:space:]]*$" \ grep -E -i -l "^[[:space:]]*UUID=\"*${1}\"*[[:space:]]*$" \
/etc/sysconfig/network-scripts/ifcfg-* 2>/dev/null | head -1 /etc/sysconfig/network-scripts/ifcfg-* 2> /dev/null | head -1
} }
get_ifcfg_by_name() get_ifcfg_by_name()
{ {
grep -E -i -l "^[[:space:]]*NAME=\"*${1}\"*[[:space:]]*$" \ grep -E -i -l "^[[:space:]]*NAME=\"*${1}\"*[[:space:]]*$" \
/etc/sysconfig/network-scripts/ifcfg-* 2>/dev/null | head -1 /etc/sysconfig/network-scripts/ifcfg-* 2> /dev/null | head -1
} }
is_nm_running() is_nm_running()
{ {
[[ "$(LANG=C nmcli -t --fields running general status 2>/dev/null)" = "running" ]] [[ "$(LANG=C nmcli -t --fields running general status 2> /dev/null)" == "running" ]]
} }
is_nm_handling() is_nm_handling()
{ {
LANG=C nmcli -t --fields device,state dev status 2>/dev/null \ LANG=C nmcli -t --fields device,state dev status 2> /dev/null |
| grep -q "^\(${1}:connected\)\|\(${1}:connecting.*\)$" grep -q "^\(${1}:connected\)\|\(${1}:connecting.*\)$"
} }
# $1: netdev name # $1: netdev name
@ -357,15 +361,15 @@ get_ifcfg_nmcli()
local ifcfg_file local ifcfg_file
# Get the active nmcli config name of $1 # Get the active nmcli config name of $1
if is_nm_running && is_nm_handling "${1}" ; then if is_nm_running && is_nm_handling "${1}"; then
# The configuration "uuid" and "name" generated by nm is wrote to # The configuration "uuid" and "name" generated by nm is wrote to
# the ifcfg file as "UUID=<nm_uuid>" and "NAME=<nm_name>". # the ifcfg file as "UUID=<nm_uuid>" and "NAME=<nm_name>".
nm_uuid=$(LANG=C nmcli -t --fields uuid,device c show --active 2>/dev/null \ nm_uuid=$(LANG=C nmcli -t --fields uuid,device c show --active 2> /dev/null |
| grep "${1}" | head -1 | cut -d':' -f1) grep "${1}" | head -1 | cut -d':' -f1)
nm_name=$(LANG=C nmcli -t --fields name,device c show --active 2>/dev/null \ nm_name=$(LANG=C nmcli -t --fields name,device c show --active 2> /dev/null |
| grep "${1}" | head -1 | cut -d':' -f1) grep "${1}" | head -1 | cut -d':' -f1)
ifcfg_file=$(get_ifcfg_by_uuid "${nm_uuid}") ifcfg_file=$(get_ifcfg_by_uuid "${nm_uuid}")
[[ -z "${ifcfg_file}" ]] && ifcfg_file=$(get_ifcfg_by_name "${nm_name}") [[ -z ${ifcfg_file} ]] && ifcfg_file=$(get_ifcfg_by_name "${nm_name}")
fi fi
echo -n "${ifcfg_file}" echo -n "${ifcfg_file}"
@ -377,15 +381,15 @@ get_ifcfg_legacy()
local ifcfg_file hwaddr local ifcfg_file hwaddr
ifcfg_file="/etc/sysconfig/network-scripts/ifcfg-${1}" ifcfg_file="/etc/sysconfig/network-scripts/ifcfg-${1}"
[[ -f "${ifcfg_file}" ]] && echo -n "${ifcfg_file}" && return [[ -f ${ifcfg_file} ]] && echo -n "${ifcfg_file}" && return
ifcfg_file=$(get_ifcfg_by_name "${1}") ifcfg_file=$(get_ifcfg_by_name "${1}")
[[ -f "${ifcfg_file}" ]] && echo -n "${ifcfg_file}" && return [[ -f ${ifcfg_file} ]] && echo -n "${ifcfg_file}" && return
hwaddr=$(get_hwaddr "${1}") hwaddr=$(get_hwaddr "${1}")
if [[ -n "$hwaddr" ]]; then if [[ -n $hwaddr ]]; then
ifcfg_file=$(get_ifcfg_by_hwaddr "${hwaddr}") ifcfg_file=$(get_ifcfg_by_hwaddr "${hwaddr}")
[[ -f "${ifcfg_file}" ]] && echo -n "${ifcfg_file}" && return [[ -f ${ifcfg_file} ]] && echo -n "${ifcfg_file}" && return
fi fi
ifcfg_file=$(get_ifcfg_by_device "${1}") ifcfg_file=$(get_ifcfg_by_device "${1}")
@ -395,11 +399,12 @@ get_ifcfg_legacy()
# $1: netdev name # $1: netdev name
# Return the ifcfg file whole name(including the path) of $1 if any. # Return the ifcfg file whole name(including the path) of $1 if any.
get_ifcfg_filename() { get_ifcfg_filename()
{
local ifcfg_file local ifcfg_file
ifcfg_file=$(get_ifcfg_nmcli "${1}") ifcfg_file=$(get_ifcfg_nmcli "${1}")
if [[ -z "${ifcfg_file}" ]]; then if [[ -z ${ifcfg_file} ]]; then
ifcfg_file=$(get_ifcfg_legacy "${1}") ifcfg_file=$(get_ifcfg_legacy "${1}")
fi fi
@ -408,14 +413,16 @@ get_ifcfg_filename() {
# returns 0 when omission of a module is desired in dracut_args # returns 0 when omission of a module is desired in dracut_args
# returns 1 otherwise # returns 1 otherwise
is_dracut_mod_omitted() { is_dracut_mod_omitted()
{
local dracut_args dracut_mod=$1 local dracut_args dracut_mod=$1
set -- $(kdump_get_conf_val dracut_args) set -- $(kdump_get_conf_val dracut_args)
while [ $# -gt 0 ]; do while [ $# -gt 0 ]; do
case $1 in case $1 in
-o|--omit) -o | --omit)
[[ " ${2//[^[:alnum:]]/ } " == *" $dracut_mod "* ]] && return 0 [[ " ${2//[^[:alnum:]]/ } " == *" $dracut_mod "* ]] && return 0
;;
esac esac
shift shift
done done
@ -423,14 +430,15 @@ is_dracut_mod_omitted() {
return 1 return 1
} }
is_wdt_active() { is_wdt_active()
{
local active local active
[[ -d /sys/class/watchdog ]] || return 1 [[ -d /sys/class/watchdog ]] || return 1
for dir in /sys/class/watchdog/*; do for dir in /sys/class/watchdog/*; do
[[ -f "$dir/state" ]] || continue [[ -f "$dir/state" ]] || continue
active=$(< "$dir/state") active=$(< "$dir/state")
[[ "$active" = "active" ]] && return 0 [[ $active == "active" ]] && return 0
done done
return 1 return 1
} }
@ -447,7 +455,7 @@ check_crash_mem_reserved()
{ {
local mem_reserved local mem_reserved
mem_reserved=$(</sys/kernel/kexec_crash_size) mem_reserved=$(< /sys/kernel/kexec_crash_size)
if [[ $mem_reserved -eq 0 ]]; then if [[ $mem_reserved -eq 0 ]]; then
derror "No memory reserved for crash kernel" derror "No memory reserved for crash kernel"
return 1 return 1
@ -468,12 +476,12 @@ check_kdump_feasibility()
check_current_kdump_status() check_current_kdump_status()
{ {
if [[ ! -f /sys/kernel/kexec_crash_loaded ]];then if [[ ! -f /sys/kernel/kexec_crash_loaded ]]; then
derror "Perhaps CONFIG_CRASH_DUMP is not enabled in kernel" derror "Perhaps CONFIG_CRASH_DUMP is not enabled in kernel"
return 1 return 1
fi fi
rc=$(</sys/kernel/kexec_crash_loaded) rc=$(< /sys/kernel/kexec_crash_loaded)
if [[ $rc == 1 ]]; then if [[ $rc == 1 ]]; then
return 0 return 0
else else
@ -490,7 +498,7 @@ remove_cmdline_param()
shift shift
for arg in "$@"; do for arg in "$@"; do
cmdline=$(echo "$cmdline" | \ cmdline=$(echo "$cmdline" |
sed -e "s/\b$arg=[^ ]*//g" \ sed -e "s/\b$arg=[^ ]*//g" \
-e "s/^$arg\b//g" \ -e "s/^$arg\b//g" \
-e "s/[[:space:]]$arg\b//g" \ -e "s/[[:space:]]$arg\b//g" \
@ -523,7 +531,7 @@ append_cmdline()
local newstr=${cmdline/$2/""} local newstr=${cmdline/$2/""}
# unchanged str implies argument wasn't there # unchanged str implies argument wasn't there
if [[ "$cmdline" == "$newstr" ]]; then if [[ $cmdline == "$newstr" ]]; then
cmdline="${cmdline} ${2}=${3}" cmdline="${cmdline} ${2}=${3}"
fi fi
@ -558,26 +566,26 @@ is_secure_boot_enforced()
if [[ -f /proc/device-tree/ibm,secureboot/os-secureboot-enforcing ]]; then if [[ -f /proc/device-tree/ibm,secureboot/os-secureboot-enforcing ]]; then
return 0 return 0
fi fi
if [[ -f /proc/device-tree/ibm,secure-boot ]] && \ if [[ -f /proc/device-tree/ibm,secure-boot ]] &&
[[ $(lsprop /proc/device-tree/ibm,secure-boot | tail -1) -ge 2 ]]; then [[ $(lsprop /proc/device-tree/ibm,secure-boot | tail -1) -ge 2 ]]; then
return 0 return 0
fi fi
# Detect secure boot on x86 and arm64 # Detect secure boot on x86 and arm64
secure_boot_file=$(find /sys/firmware/efi/efivars -name "SecureBoot-*" 2>/dev/null) secure_boot_file=$(find /sys/firmware/efi/efivars -name "SecureBoot-*" 2> /dev/null)
setup_mode_file=$(find /sys/firmware/efi/efivars -name "SetupMode-*" 2>/dev/null) setup_mode_file=$(find /sys/firmware/efi/efivars -name "SetupMode-*" 2> /dev/null)
if [[ -f "$secure_boot_file" ]] && [[ -f "$setup_mode_file" ]]; then if [[ -f $secure_boot_file ]] && [[ -f $setup_mode_file ]]; then
secure_boot_byte=$(hexdump -v -e '/1 "%d\ "' "$secure_boot_file" | cut -d' ' -f 5) secure_boot_byte=$(hexdump -v -e '/1 "%d\ "' "$secure_boot_file" | cut -d' ' -f 5)
setup_mode_byte=$(hexdump -v -e '/1 "%d\ "' "$setup_mode_file" | cut -d' ' -f 5) setup_mode_byte=$(hexdump -v -e '/1 "%d\ "' "$setup_mode_file" | cut -d' ' -f 5)
if [[ "$secure_boot_byte" = "1" ]] && [[ "$setup_mode_byte" = "0" ]]; then if [[ $secure_boot_byte == "1" ]] && [[ $setup_mode_byte == "0" ]]; then
return 0 return 0
fi fi
fi fi
# Detect secure boot on s390x # Detect secure boot on s390x
if [[ -e "/sys/firmware/ipl/secure" && "$(</sys/firmware/ipl/secure)" == "1" ]]; then if [[ -e "/sys/firmware/ipl/secure" && "$(< /sys/firmware/ipl/secure)" == "1" ]]; then
return 0 return 0
fi fi
@ -594,22 +602,18 @@ prepare_kexec_args()
local found_elf_args local found_elf_args
ARCH=$(uname -m) ARCH=$(uname -m)
if [[ "$ARCH" == "i686" ]] || [[ "$ARCH" == "i386" ]] if [[ $ARCH == "i686" ]] || [[ $ARCH == "i386" ]]; then
then
need_64bit_headers need_64bit_headers
if [[ $? == 1 ]] if [[ $? == 1 ]]; then
then
found_elf_args=$(echo "$kexec_args" | grep elf32-core-headers) found_elf_args=$(echo "$kexec_args" | grep elf32-core-headers)
if [[ -n "$found_elf_args" ]] if [[ -n $found_elf_args ]]; then
then
dwarn "Warning: elf32-core-headers overrides correct elf64 setting" dwarn "Warning: elf32-core-headers overrides correct elf64 setting"
else else
kexec_args="$kexec_args --elf64-core-headers" kexec_args="$kexec_args --elf64-core-headers"
fi fi
else else
found_elf_args=$(echo "$kexec_args" | grep elf64-core-headers) found_elf_args=$(echo "$kexec_args" | grep elf64-core-headers)
if [[ -z "$found_elf_args" ]] if [[ -z $found_elf_args ]]; then
then
kexec_args="$kexec_args --elf32-core-headers" kexec_args="$kexec_args --elf32-core-headers"
fi fi
fi fi
@ -629,7 +633,7 @@ prepare_kdump_bootinfo()
local boot_img boot_imglist boot_dirlist boot_initrdlist local boot_img boot_imglist boot_dirlist boot_initrdlist
local machine_id local machine_id
if [[ -z "$KDUMP_KERNELVER" ]]; then if [[ -z $KDUMP_KERNELVER ]]; then
KDUMP_KERNELVER="$(uname -r)" KDUMP_KERNELVER="$(uname -r)"
fi fi
@ -639,7 +643,7 @@ prepare_kdump_bootinfo()
# Use BOOT_IMAGE as reference if possible, strip the GRUB root device prefix in (hd0,gpt1) format # Use BOOT_IMAGE as reference if possible, strip the GRUB root device prefix in (hd0,gpt1) format
boot_img="$(sed "s/^BOOT_IMAGE=\((\S*)\)\?\(\S*\) .*/\2/" /proc/cmdline)" boot_img="$(sed "s/^BOOT_IMAGE=\((\S*)\)\?\(\S*\) .*/\2/" /proc/cmdline)"
if [[ -n "$boot_img" ]]; then if [[ -n $boot_img ]]; then
boot_imglist="$boot_img $boot_imglist" boot_imglist="$boot_img $boot_imglist"
fi fi
@ -652,7 +656,7 @@ prepare_kdump_bootinfo()
done done
done done
if ! [[ -e "$KDUMP_KERNEL" ]]; then if ! [[ -e $KDUMP_KERNEL ]]; then
derror "Failed to detect kdump kernel location" derror "Failed to detect kdump kernel location"
return 1 return 1
fi fi
@ -673,7 +677,7 @@ prepare_kdump_bootinfo()
# Create kdump initrd basename from default initrd basename # Create kdump initrd basename from default initrd basename
# initramfs-5.7.9-200.fc32.x86_64.img => initramfs-5.7.9-200.fc32.x86_64kdump.img # initramfs-5.7.9-200.fc32.x86_64.img => initramfs-5.7.9-200.fc32.x86_64kdump.img
# initrd => initrdkdump # initrd => initrdkdump
if [[ -z "$defaut_initrd_base" ]]; then if [[ -z $defaut_initrd_base ]]; then
kdump_initrd_base=initramfs-${KDUMP_KERNELVER}kdump.img kdump_initrd_base=initramfs-${KDUMP_KERNELVER}kdump.img
elif [[ $defaut_initrd_base == *.* ]]; then elif [[ $defaut_initrd_base == *.* ]]; then
kdump_initrd_base=${defaut_initrd_base%.*}kdump.${DEFAULT_INITRD##*.} kdump_initrd_base=${defaut_initrd_base%.*}kdump.${DEFAULT_INITRD##*.}
@ -682,7 +686,7 @@ prepare_kdump_bootinfo()
fi fi
# Place kdump initrd in $(/var/lib/kdump) if $(KDUMP_BOOTDIR) not writable # Place kdump initrd in $(/var/lib/kdump) if $(KDUMP_BOOTDIR) not writable
if [[ ! -w "$KDUMP_BOOTDIR" ]];then if [[ ! -w $KDUMP_BOOTDIR ]]; then
var_target_initrd_dir="/var/lib/kdump" var_target_initrd_dir="/var/lib/kdump"
mkdir -p "$var_target_initrd_dir" mkdir -p "$var_target_initrd_dir"
KDUMP_INITRD="$var_target_initrd_dir/$kdump_initrd_base" KDUMP_INITRD="$var_target_initrd_dir/$kdump_initrd_base"
@ -699,7 +703,7 @@ get_watchdog_drvs()
# device/modalias will return driver of this device # device/modalias will return driver of this device
[[ -f "$_dir/device/modalias" ]] || continue [[ -f "$_dir/device/modalias" ]] || continue
_drv=$(< "$_dir/device/modalias") _drv=$(< "$_dir/device/modalias")
_drv=$(modprobe --set-version "$KDUMP_KERNELVER" -R "$_drv" 2>/dev/null) _drv=$(modprobe --set-version "$KDUMP_KERNELVER" -R "$_drv" 2> /dev/null)
for i in $_drv; do for i in $_drv; do
if ! [[ " $_wdtdrvs " == *" $i "* ]]; then if ! [[ " $_wdtdrvs " == *" $i "* ]]; then
_wdtdrvs="$_wdtdrvs $i" _wdtdrvs="$_wdtdrvs $i"
@ -718,8 +722,8 @@ prepare_cmdline()
{ {
local cmdline id arg local cmdline id arg
if [[ -z "$1" ]]; then if [[ -z $1 ]]; then
cmdline=$(</proc/cmdline) cmdline=$(< /proc/cmdline)
else else
cmdline="$1" cmdline="$1"
fi fi
@ -750,7 +754,7 @@ prepare_cmdline()
cmdline="${cmdline} $3" cmdline="${cmdline} $3"
id=$(get_bootcpu_apicid) id=$(get_bootcpu_apicid)
if [[ -n ${id} ]] ; then if [[ -n ${id} ]]; then
cmdline=$(append_cmdline "$cmdline" disable_cpu_apicid "$id") cmdline=$(append_cmdline "$cmdline" disable_cpu_apicid "$id")
fi fi
@ -783,7 +787,7 @@ get_system_size()
result="+$result" result="+$result"
# replace '-' with '+0x' and '+' with '-0x' # replace '-' with '+0x' and '+' with '-0x'
sum=$(echo "$result" | sed -e 's/-/K0x/g' -e 's/+/-0x/g' -e 's/K/+/g') sum=$(echo "$result" | sed -e 's/-/K0x/g' -e 's/+/-0x/g' -e 's/K/+/g')
size=$(printf "%d\n" $(($sum))) size=$(printf "%d\n" $((sum)))
size=$((size / 1024 / 1024 / 1024)) size=$((size / 1024 / 1024 / 1024))
echo "$size" echo "$size"
@ -795,7 +799,7 @@ get_recommend_size()
local _ck_cmdline=$2 local _ck_cmdline=$2
local OLDIFS="$IFS" local OLDIFS="$IFS"
start=${_ck_cmdline: :1} start=${_ck_cmdline::1}
if [[ $mem_size -lt $start ]]; then if [[ $mem_size -lt $start ]]; then
echo "0M" echo "0M"
return return
@ -804,7 +808,7 @@ get_recommend_size()
for i in $_ck_cmdline; do for i in $_ck_cmdline; do
end=$(echo "$i" | awk -F "-" '{ print $2 }' | awk -F ":" '{ print $1 }') end=$(echo "$i" | awk -F "-" '{ print $2 }' | awk -F ":" '{ print $1 }')
recommend=$(echo "$i" | awk -F "-" '{ print $2 }' | awk -F ":" '{ print $2 }') recommend=$(echo "$i" | awk -F "-" '{ print $2 }' | awk -F ":" '{ print $2 }')
size=${end: : -1} size=${end::-1}
unit=${end: -1} unit=${end: -1}
if [[ $unit == 'T' ]]; then if [[ $unit == 'T' ]]; then
size=$((size * 1024)) size=$((size * 1024))
@ -824,23 +828,23 @@ kdump_get_arch_recommend_size()
{ {
local kernel=$1 arch local kernel=$1 arch
if ! [[ -r "/proc/iomem" ]] ; then if ! [[ -r "/proc/iomem" ]]; then
echo "Error, can not access /proc/iomem." echo "Error, can not access /proc/iomem."
return 1 return 1
fi fi
[[ -z "$kernel" ]] && kernel=$(uname -r) [[ -z $kernel ]] && kernel=$(uname -r)
ck_cmdline=$(cat "/usr/lib/modules/$kernel/crashkernel.default" 2>/dev/null) ck_cmdline=$(cat "/usr/lib/modules/$kernel/crashkernel.default" 2> /dev/null)
if [[ -n "$ck_cmdline" ]]; then if [[ -n $ck_cmdline ]]; then
ck_cmdline=${ck_cmdline#crashkernel=} ck_cmdline=${ck_cmdline#crashkernel=}
else else
arch=$(lscpu | grep Architecture | awk -F ":" '{ print $2 }' | tr '[:lower:]' '[:upper:]') arch=$(lscpu | grep Architecture | awk -F ":" '{ print $2 }' | tr '[:lower:]' '[:upper:]')
if [[ "$arch" = "X86_64" ]] || [[ "$arch" = "S390X" ]]; then if [[ $arch == "X86_64" ]] || [[ $arch == "S390X" ]]; then
ck_cmdline="1G-4G:160M,4G-64G:192M,64G-1T:256M,1T-:512M" ck_cmdline="1G-4G:160M,4G-64G:192M,64G-1T:256M,1T-:512M"
elif [[ "$arch" = "AARCH64" ]]; then elif [[ $arch == "AARCH64" ]]; then
ck_cmdline="2G-:448M" ck_cmdline="2G-:448M"
elif [[ "$arch" = "PPC64LE" ]]; then elif [[ $arch == "PPC64LE" ]]; then
if is_fadump_capable; then if is_fadump_capable; then
ck_cmdline="4G-16G:768M,16G-64G:1G,64G-128G:2G,128G-1T:4G,1T-2T:6G,2T-4T:12G,4T-8T:20G,8T-16T:36G,16T-32T:64G,32T-64T:128G,64T-:180G" ck_cmdline="4G-16G:768M,16G-64G:1G,64G-128G:2G,128G-1T:4G,1T-2T:6G,2T-4T:12G,4T-8T:20G,8T-16T:36G,16T-32T:64G,32T-64T:128G,64T-:180G"
else else
@ -879,7 +883,8 @@ get_luks_crypt_dev()
# Example: # Example:
# $ get_maj_min /dev/sda2 # $ get_maj_min /dev/sda2
# 8:2 # 8:2
kdump_get_maj_min() { kdump_get_maj_min()
{
local _majmin local _majmin
_majmin="$(stat -L -c '%t:%T' "$1" 2> /dev/null)" _majmin="$(stat -L -c '%t:%T' "$1" 2> /dev/null)"
printf "%s" "$((0x${_majmin%:*})):$((0x${_majmin#*:}))" printf "%s" "$((0x${_majmin%:*})):$((0x${_majmin#*:}))"
@ -897,7 +902,7 @@ get_all_kdump_crypt_dev()
check_vmlinux() check_vmlinux()
{ {
# Use readelf to check if it's a valid ELF # Use readelf to check if it's a valid ELF
readelf -h "$1" &>/dev/null || return 1 readelf -h "$1" &> /dev/null || return 1
} }
get_vmlinux_size() get_vmlinux_size()
@ -905,8 +910,8 @@ get_vmlinux_size()
local size=0 _msize local size=0 _msize
while read -r _msize; do while read -r _msize; do
size=$(( size + _msize )) size=$((size + _msize))
done <<< "$(readelf -l -W "$1" | awk '/^ LOAD/{print $6}' 2>/dev/stderr)" done <<< "$(readelf -l -W "$1" | awk '/^ LOAD/{print $6}' 2> /dev/stderr)"
echo $size echo $size
} }
@ -917,8 +922,7 @@ try_decompress()
# "grep" that report the byte offset of the line instead of the pattern. # "grep" that report the byte offset of the line instead of the pattern.
# Try to find the header ($1) and decompress from here # Try to find the header ($1) and decompress from here
for pos in $(tr "$1\n$2" "\n$2=" < "$4" | grep -abo "^$2") for pos in $(tr "$1\n$2" "\n$2=" < "$4" | grep -abo "^$2"); do
do
if ! type -P "$3" > /dev/null; then if ! type -P "$3" > /dev/null; then
ddebug "Signiature detected but '$3' is missing, skip this decompressor" ddebug "Signiature detected but '$3' is missing, skip this decompressor"
break break
@ -948,12 +952,12 @@ get_kernel_size()
check_vmlinux "$img" && get_vmlinux_size "$img" && return 0 check_vmlinux "$img" && get_vmlinux_size "$img" && return 0
# That didn't work, so retry after decompression. # That didn't work, so retry after decompression.
try_decompress '\037\213\010' xy gunzip "$img" "$tmp" || \ try_decompress '\037\213\010' xy gunzip "$img" "$tmp" ||
try_decompress '\3757zXZ\000' abcde unxz "$img" "$tmp" || \ try_decompress '\3757zXZ\000' abcde unxz "$img" "$tmp" ||
try_decompress 'BZh' xy bunzip2 "$img" "$tmp" || \ try_decompress 'BZh' xy bunzip2 "$img" "$tmp" ||
try_decompress '\135\0\0\0' xxx unlzma "$img" "$tmp" || \ try_decompress '\135\0\0\0' xxx unlzma "$img" "$tmp" ||
try_decompress '\211\114\132' xy 'lzop -d' "$img" "$tmp" || \ try_decompress '\211\114\132' xy 'lzop -d' "$img" "$tmp" ||
try_decompress '\002!L\030' xxx 'lz4 -d' "$img" "$tmp" || \ try_decompress '\002!L\030' xxx 'lz4 -d' "$img" "$tmp" ||
try_decompress '(\265/\375' xxx unzstd "$img" "$tmp" try_decompress '(\265/\375' xxx unzstd "$img" "$tmp"
# Finally check for uncompressed images or objects: # Finally check for uncompressed images or objects:
@ -962,7 +966,7 @@ get_kernel_size()
# Fallback to use iomem # Fallback to use iomem
local _size=0 _seg local _size=0 _seg
while read -r _seg; do while read -r _seg; do
_size=$(( _size + 0x${_seg#*-} - 0x${_seg%-*} )) _size=$((_size + 0x${_seg#*-} - 0x${_seg%-*}))
done <<< "$(grep -E "Kernel (code|rodata|data|bss)" /proc/iomem | cut -d ":" -f 1)" done <<< "$(grep -E "Kernel (code|rodata|data|bss)" /proc/iomem | cut -d ":" -f 1)"
echo $_size echo $_size
} }