kexec-tools/dracut-early-kdump-module-setup.sh
Tao Liu bf4667b866 bash scripts: fix variable quoting issue
upstream: fedora
resolves: bz2003832
conflict:
    function remove_kdump_kernel_key() not presented in rhel9,
    so related patch hunk are removed.

commit 86538ca6e2
Author: Kairui Song <kasong@redhat.com>
Date:   Wed Sep 8 17:21:41 2021 +0800

    bash scripts: fix variable quoting issue

    Fixed quoting issues found by shellcheck, no feature
    change. This should fix many errors when there is space
    in any shell variables, eg. dump target's name/path/id.

    False positives are marked with "# shellcheck disable=SCXXXX", for
    example, args are expected to split so it should not be quoted.

    And replaced some `cut -d ' ' -fX` with `awk '{print $X}'` since cut
    is fragile, and doesn't work well with any quoted strings that have
    redundant space.

    Following quoting related issues are fixed (check the link
    for example code and what could go wrong):

    https://github.com/koalaman/shellcheck/wiki/SC2046
    https://github.com/koalaman/shellcheck/wiki/SC2053
    https://github.com/koalaman/shellcheck/wiki/SC2068
    https://github.com/koalaman/shellcheck/wiki/SC2086
    https://github.com/koalaman/shellcheck/wiki/SC2206

    Signed-off-by: Kairui Song <kasong@redhat.com>
    Acked-by: Philipp Rudo <prudo@redhat.com>

Signed-off-by: Tao Liu <ltao@redhat.com>
2021-11-09 21:27:55 +08:00

65 lines
1.7 KiB
Bash
Executable File

#!/bin/bash
. /etc/sysconfig/kdump
KDUMP_KERNEL=""
KDUMP_INITRD=""
check() {
if [[ ! -f /etc/sysconfig/kdump ]] || [[ ! -f /lib/kdump/kdump-lib.sh ]]\
|| [[ -n "${IN_KDUMP}" ]]
then
return 1
fi
return 255
}
depends() {
echo "base shutdown"
return 0
}
prepare_kernel_initrd() {
. /lib/kdump/kdump-lib.sh
prepare_kdump_bootinfo
# $kernel is a variable from dracut
if [[ "$KDUMP_KERNELVER" != "$kernel" ]]; then
dwarn "Using kernel version '$KDUMP_KERNELVER' for early kdump," \
"but the initramfs is generated for kernel version '$kernel'"
fi
}
install() {
prepare_kernel_initrd
if [[ ! -f "$KDUMP_KERNEL" ]]; then
derror "Could not find required kernel for earlykdump," \
"earlykdump will not work!"
return 1
fi
if [[ ! -f "$KDUMP_INITRD" ]]; then
derror "Could not find required kdump initramfs for earlykdump," \
"please ensure kdump initramfs is generated first," \
"earlykdump will not work!"
return 1
fi
inst_multiple tail find cut dirname hexdump
inst_simple "/etc/sysconfig/kdump"
inst_binary "/usr/sbin/kexec"
inst_binary "/usr/bin/gawk" "/usr/bin/awk"
inst_binary "/usr/bin/logger" "/usr/bin/logger"
inst_binary "/usr/bin/printf" "/usr/bin/printf"
inst_script "/lib/kdump/kdump-lib.sh" "/lib/kdump-lib.sh"
inst_script "/lib/kdump/kdump-logger.sh" "/lib/kdump-logger.sh"
inst_hook cmdline 00 "$moddir/early-kdump.sh"
inst_binary "$KDUMP_KERNEL"
inst_binary "$KDUMP_INITRD"
ln_r "$KDUMP_KERNEL" "/boot/kernel-earlykdump"
ln_r "$KDUMP_INITRD" "/boot/initramfs-earlykdump"
chmod -x "${initdir}/$KDUMP_KERNEL"
}