Your IP : 216.73.216.62

Current Path : /proc/thread-self/root/proc/1908984/root/tmp/
Upload File :
Current File : //proc/thread-self/root/proc/1908984/root/tmp/phpMYJj2h

#!/usr/bin/sh
#
# The code in this file will be used in initramfs environment, bash may
# not be the default shell. Any code added must be POSIX compliant.

DEFAULT_PATH="/var/crash/"
KDUMP_CONFIG_FILE="/etc/kdump.conf"
FENCE_KDUMP_CONFIG_FILE="/etc/sysconfig/fence_kdump"
FENCE_KDUMP_SEND="/usr/libexec/fence_kdump_send"
LVM_CONF="/etc/lvm/lvm.conf"
# shellcheck disable=SC2034
LUKS_CONFIGFS=/sys/kernel/config/crash_dm_crypt_keys
# shellcheck disable=SC2034
LUKS_KEY_PRFIX="kdump-cryptsetup:vk-"

# Read kdump config in well formated style
kdump_read_conf()
{
	kdump_get_conf_val ""
}

# Retrieves config value defined in kdump.conf
# $1: config name, if empty print full config
kdump_get_conf_val()
{
	_to_find="$1"
	_found=""

	[ -f "$KDUMP_CONFIG_FILE" ] || return

	# On lines that are _not_ comments or empty remove...
	# Note: The additional braces {} are required as piping into a while
	# loop creates a sub-shell. So without the braces $_found would only be
	# set inside the loop but empty outside of it.
	grep -Ev -e '^\s*#' -e '^\s*$' "$KDUMP_CONFIG_FILE" | {
		while read -r _opt _val; do
			# ...trailing comments...
			case "$_val" in
			*\#*)
				_val="${_val%%#*}"
				_val="${_val%"${_val##*[![:space:]]}"}"
				;;
			esac

			# ...quotes
			case "$_val" in
			\"*\")
				_val="${_val#\"}"
				_val="${_val%\"}"
				;;
			esac

			if [ -z "$_to_find" ]; then
				echo "$_opt $_val"
			elif echo "$_opt" | grep -q -E "^($_to_find)$"; then
				# make sure to only return the last match to
				# mirror the old behavior
				_found="$_val"
			fi
		done

		[ -n "$_found" ] && echo "$_found"
	}

	# make sure we return 0 even when a option isn't set
	return 0
}

is_mounted()
{
	findmnt -k -n "$1" > /dev/null 2>&1
}

# $1: info type
# $2: mount source type
# $3: mount source
# $4: extra args
get_mount_info()
{
	__kdump_mnt=$(findmnt -k -n -r -o "$1" "--$2" "$3" $4)

	[ -z "$__kdump_mnt" ] && [ -e "/etc/fstab" ] && __kdump_mnt=$(findmnt -s -n -r -o "$1" "--$2" "$3" $4)

	echo "$__kdump_mnt"
}

is_ipv6_address()
{
	echo "$1" | grep -q ":"
}

is_fs_type_nfs()
{
	[ "$1" = "nfs" ] || [ "$1" = "nfs4" ]
}

is_fs_type_virtiofs()
{
	[ "$1" = "virtiofs" ]
}

# If $1 contains dracut_args "--mount", return <filesystem type>
get_dracut_args_fstype()
{
	echo $1 | grep "\-\-mount" | sed "s/.*--mount .\(.*\)/\1/" | cut -d' ' -f3
}

# If $1 contains dracut_args "--mount", return <device>
get_dracut_args_target()
{
	echo $1 | grep "\-\-mount" | sed "s/.*--mount .\(.*\)/\1/" | cut -d' ' -f1
}

get_save_path()
{
	__kdump_path=$(kdump_get_conf_val path)
	[ -z "$__kdump_path" ] && __kdump_path=$DEFAULT_PATH

	# strip the duplicated "/"
	echo "$__kdump_path" | tr -s /
}

get_root_fs_device()
{
	findmnt -k -f -n -o SOURCE /
}

# Return the current underlying device of a path, ignore bind mounts
get_target_from_path()
{
	__kdump_target=$(df "$1" 2> /dev/null | tail -1 | awk '{print $1}')
	[ "$__kdump_target" = "/dev/root" ] && [ ! -e /dev/root ] && __kdump_target=$(get_root_fs_device)
	echo "$__kdump_target"
}

get_fs_type_from_target()
{
	get_mount_info FSTYPE source "$1" -f
}

get_mntpoint_from_target()
{
	local _mntpoint
	# get the first TARGET when SOURCE doesn't end with ].
	# In most cases, a SOURCE ends with ] when fsroot or subvol exists.
	_mntpoint=$(get_mount_info TARGET,SOURCE source "$1" | grep -v "\]$" | awk 'NR==1 { print $1 }')

	# fallback to the old way when _mntpoint is empty.
	[[ -n "$_mntpoint" ]] || _mntpoint=$(get_mount_info TARGET source "$1" -f )
	echo $_mntpoint
}

is_ssh_dump_target()
{
	kdump_get_conf_val ssh | grep -q @
}

is_raw_dump_target()
{
	[ -n "$(kdump_get_conf_val raw)" ]
}

is_virtiofs_dump_target()
{
	if [ -n "$(kdump_get_conf_val virtiofs)" ]; then
		return 0
	fi

	if is_fs_type_virtiofs "$(get_dracut_args_fstype "$(kdump_get_conf_val dracut_args)")"; then
		return 0
	fi

	if is_fs_type_virtiofs "$(get_fs_type_from_target "$(get_target_from_path "$(get_save_path)")")"; then
		return 0
	fi

	return 1
}

is_nfs_dump_target()
{
	if [ -n "$(kdump_get_conf_val nfs)" ]; then
		return 0
	fi

	if is_fs_type_nfs "$(get_dracut_args_fstype "$(kdump_get_conf_val dracut_args)")"; then
		return 0
	fi

	if is_fs_type_nfs "$(get_fs_type_from_target "$(get_target_from_path "$(get_save_path)")")"; then
		return 0
	fi

	return 1
}

fs_dump_target()
{
	kdump_get_conf_val "ext[234]\|xfs\|btrfs\|minix\|virtiofs"
}

is_fs_dump_target()
{
	[ -n "$(fs_dump_target)" ]
}

is_lvm2_thinp_device()
{
	_device_path=$1
	_lvm2_thin_device=$(lvm lvs -S 'lv_layout=sparse && lv_layout=thin' \
		--nosuffix --noheadings -o vg_name,lv_name "$_device_path" 2> /dev/null)

	[ -n "$_lvm2_thin_device" ]
}

kdump_get_ip_route()
{
	if ! _route=$(/sbin/ip -o route get to "$1" 2>&1); then
		exit 1
	fi
	echo "$_route"
}

kdump_get_ip_route_field()
{
	echo "$1" | sed -n -e "s/^.*\<$2\>\s\+\(\S\+\).*$/\1/p"
}
#!/usr/bin/bash
#
# Kdump common variables and functions
#

. /usr/lib/kdump/kdump-lib-initramfs.sh

FADUMP_ENABLED_SYS_NODE="/sys/kernel/fadump/enabled"
FADUMP_REGISTER_SYS_NODE="/sys/kernel/fadump/registered"
FADUMP_APPEND_ARGS_SYS_NODE="/sys/kernel/fadump/bootargs_append"

is_uki()
{
	local img

	img="$1"

	[[ -f "$img" ]] || return
	[[ "$(objdump -a "$img" 2> /dev/null)" =~ pei-(x86-64|aarch64-little) ]] || return
	objdump -h -j .linux "$img" &> /dev/null
}

is_fadump_capable()
{
	# Check if firmware-assisted dump is enabled
	# if no, fallback to kdump check
	if [[ -f $FADUMP_ENABLED_SYS_NODE ]]; then
		rc=$(< $FADUMP_ENABLED_SYS_NODE)
		[[ $rc -eq 1 ]] && return 0
	fi
	return 1
}

is_sme_or_sev_active()
{
	journalctl -q --dmesg --grep "^Memory Encryption Features active: AMD (SME|SEV)$" >/dev/null 2>&1
}

is_squash_available()
{
	local _version kmodule

	_version=$(_get_kdump_kernel_version)
	for kmodule in squashfs overlay loop; do
		modprobe -S "$_version" --dry-run $kmodule &> /dev/null || return 1
	done
}

is_zstd_command_available()
{
	[[ -x "$(command -v zstd)" ]]
}

dracut_have_option()
{
	local _option=$1
	! dracut "$_option" 2>&1 | grep -q "unrecognized option"
}

perror_exit()
{
	derror "$@"
	exit 1
}

# Check if fence kdump is configured in Pacemaker cluster
is_pcs_fence_kdump()
{
	# no pcs or fence_kdump_send executables installed?
	type -P pcs > /dev/null || return 1
	[[ -x $FENCE_KDUMP_SEND ]] || return 1

	# fence kdump not configured?
	(pcs cluster cib | grep 'type="fence_kdump"') &> /dev/null || return 1
}

# Check if fence_kdump is configured using kdump options
is_generic_fence_kdump()
{
	[[ -x $FENCE_KDUMP_SEND ]] || return 1

	[[ $(kdump_get_conf_val fence_kdump_nodes) ]]
}

to_dev_name()
{
	local dev="${1//\"/}"

	case "$dev" in
	UUID=*)
		blkid -U "${dev#UUID=}"
		;;
	LABEL=*)
		blkid -L "${dev#LABEL=}"
		;;
	*)
		echo "$dev"
		;;
	esac
}

is_user_configured_dump_target()
{
	[[ $(kdump_get_conf_val "ext[234]|xfs|btrfs|minix|raw|nfs|ssh|virtiofs") ]] || is_mount_in_dracut_args
}

get_block_dump_target()
{
	local _target _fstype

	if is_ssh_dump_target || is_nfs_dump_target; then
		return
	fi

	_target=$(kdump_get_conf_val "ext[234]|xfs|btrfs|minix|raw|virtiofs")
	[[ -n $_target ]] && to_dev_name "$_target" && return

	_target=$(get_dracut_args_target "$(kdump_get_conf_val "dracut_args")")
	[[ -b $_target ]] && to_dev_name "$_target" && return

	_fstype=$(get_dracut_args_fstype "$(kdump_get_conf_val "dracut_args")")
	is_fs_type_virtiofs "$_fstype" && echo "$_target" && return

	_target=$(get_target_from_path "$(get_save_path)")
	[[ -b $_target ]] && to_dev_name "$_target" && return

	_fstype=$(get_fs_type_from_target "$_target")
	is_fs_type_virtiofs "$_fstype" && echo "$_target" && return
}

is_dump_to_rootfs()
{
	[[ $(kdump_get_conf_val 'failure_action|default') == dump_to_rootfs ]]
}

is_lvm2_thinp_dump_target()
{
	_target=$(get_block_dump_target)
	[ -n "$_target" ] && is_lvm2_thinp_device "$_target"
}

get_failure_action_target()
{
	local _target

	if is_dump_to_rootfs; then
		# Get rootfs device name
		_target=$(get_root_fs_device)
		[[ -b $_target ]] && to_dev_name "$_target" && return
		is_fs_type_virtiofs "$(get_fs_type_from_target "$_target")" && echo "$_target" && return
		# Then, must be nfs root
		echo "nfs"
	fi
}

# Get kdump targets(including root in case of dump_to_rootfs).
get_kdump_targets()
{
	local _target _root
	local kdump_targets

	_target=$(get_block_dump_target)
	if [[ -n $_target ]]; then
		kdump_targets=$_target
	elif is_ssh_dump_target; then
		kdump_targets="ssh"
	else
		kdump_targets="nfs"
	fi

	# Add the root device if dump_to_rootfs is specified.
	_root=$(get_failure_action_target)
	if [[ -n $_root ]] && [[ $kdump_targets != "$_root" ]]; then
		kdump_targets="$kdump_targets $_root"
	fi

	echo "$kdump_targets"
}

# Return the bind mount source path, return the path itself if it's not bind mounted
# Eg. if /path/to/src is bind mounted to /mnt/bind, then:
# /mnt/bind -> /path/to/src, /mnt/bind/dump -> /path/to/src/dump
#
# findmnt uses the option "-v, --nofsroot" to exclusive the [/dir]
# in the SOURCE column for bind-mounts, then if $_src equals to
# $_src_nofsroot, the mountpoint is not bind mounted directory.
#
# Below is just an example for mount info
# /dev/mapper/atomicos-root[/ostree/deploy/rhel-atomic-host/var], if the
# directory is bind mounted. The former part represents the device path, rest
# part is the bind mounted directory which quotes by bracket "[]".
get_bind_mount_source()
{
	local _mnt _path _src _opt _fstype
	local _fsroot _src_nofsroot

	_mnt=$(df "$1" | tail -1 | awk '{print $NF}')
	_path=${1#$_mnt}

	_src=$(get_mount_info SOURCE target "$_mnt" -f)
	_opt=$(get_mount_info OPTIONS target "$_mnt" -f)
	_fstype=$(get_mount_info FSTYPE target "$_mnt" -f)

	# bind mount in fstab
	if [[ -d $_src ]] && [[ $_fstype == none ]] && (echo "$_opt" | grep -q "\bbind\b"); then
		echo "$_src$_path" && return
	fi

	# direct mount
	_src_nofsroot=$(get_mount_info SOURCE target "$_mnt" -v -f)
	if [[ $_src_nofsroot == "$_src" ]]; then
		echo "$_mnt$_path" && return
	fi

	_fsroot=${_src#${_src_nofsroot}[}
	_fsroot=${_fsroot%]}
	_mnt=$(get_mntpoint_from_target "$_src_nofsroot")

	# for btrfs, _fsroot will also contain the subvol value as well, strip it
	if [[ $_fstype == btrfs ]]; then
		local _subvol
		_subvol=${_opt#*subvol=}
		_subvol=${_subvol%,*}
		_fsroot=${_fsroot#$_subvol}
	fi
	echo "$_mnt$_fsroot$_path"
}

get_mntopt_from_target()
{
	get_mount_info OPTIONS source "$1" -f
}

# Get the path where the target will be mounted in kdump kernel
# $1: kdump target device
get_kdump_mntpoint_from_target()
{
	local _mntpoint

	_mntpoint=$(get_mntpoint_from_target "$1")
	# mount under /sysroot if dump to root disk or mount under
	# mount under /kdumproot if dump target is not mounted in first kernel
	# mount under /kdumproot/$_mntpoint in other cases in 2nd kernel.
	# systemd will be in charge to umount it.
	if [[ -z $_mntpoint ]]; then
		_mntpoint="/kdumproot"
	else
		if [[ $_mntpoint == "/" ]]; then
			_mntpoint="/sysroot"
		else
			_mntpoint="/kdumproot/$_mntpoint"
		fi
	fi

	# strip duplicated "/"
	echo $_mntpoint | tr -s "/"
}

kdump_get_persistent_dev()
{
	local dev="${1//\"/}"

	case "$dev" in
	UUID=*)
		dev=$(blkid -U "${dev#UUID=}")
		;;
	LABEL=*)
		dev=$(blkid -L "${dev#LABEL=}")
		;;
	esac
	echo $(get_persistent_dev "$dev")
}

is_ostree()
{
	test -f /run/ostree-booted
}

# get ip address or hostname from nfs/ssh config value
get_remote_host()
{
	local _config_val=$1

	# ipv6 address in kdump.conf is around with "[]",
	# factor out the ipv6 address
	_config_val=${_config_val#*@}
	_config_val=${_config_val%:/*}
	_config_val=${_config_val#[}
	_config_val=${_config_val%]}
	echo "$_config_val"
}

is_hostname()
{
	local _hostname

	_hostname=$(echo "$1" | grep ":")
	if [[ -n $_hostname ]]; then
		return 1
	fi
	echo "$1" | grep -q "[a-zA-Z]"
}

# Copied from "/etc/sysconfig/network-scripts/network-functions"
get_hwaddr()
{
	if [[ -f "/sys/class/net/$1/address" ]]; then
		awk '{ print toupper($0) }' < "/sys/class/net/$1/address"
	elif [[ -d "/sys/class/net/$1" ]]; then
		LC_ALL="" LANG="" ip -o link show "$1" 2> /dev/null |
			awk '{ print toupper(gensub(/.*link\/[^ ]* ([[:alnum:]:]*).*/,
                                        "\\1", 1)); }'
	fi
}

# Get value by a field using "nmcli -g"
# Usage: get_nmcli_value_by_field <field> <nmcli command>
#
# "nmcli --get-values" allows us to retrive value(s) by field, for example,
# nmcli --get-values <field> connection show /org/freedesktop/NetworkManager/ActiveConnection/1
# returns the following value for the corresponding field respectively,
#   Field                                  Value
#   IP4.DNS                                "10.19.42.41 | 10.11.5.19 | 10.5.30.160"
#   802-3-ethernet.s390-subchannels        ""
#   bond.options                           "mode=balance-rr"
get_nmcli_value_by_field()
{
	LANG=C nmcli --get-values "$@"
}

# Get nmcli field value of an connection apath (a D-Bus active connection path)
# Usage: get_nmcli_field_by_apath <field> <apath>
get_nmcli_field_by_conpath()
{
	local _field=$1 _apath=$2

	get_nmcli_value_