#!/bin/bash

. /etc/sysconfig/kdump

. /lib/kdump/kdump-lib.sh

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() {

    KDUMP_BOOTDIR=$(check_boot_dir "${KDUMP_BOOTDIR}")

    if [ -z "$KDUMP_KERNELVER" ]; then

        kdump_kver=`uname -r`

        if [ "$kernel" != "$kdump_kver" ]; then

            dwarn "Using current kernel version '$kdump_kver' for early kdump," \

                "but the initramfs is generated for kernel version '$kernel'"

        fi

    else

        kdump_kver=$KDUMP_KERNELVER

    fi

    KDUMP_KERNEL="${KDUMP_BOOTDIR}/${KDUMP_IMG}-${kdump_kver}${KDUMP_IMG_EXT}"

    KDUMP_INITRD="${KDUMP_BOOTDIR}/initramfs-${kdump_kver}kdump.img"

}

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_script "/lib/kdump/kdump-lib.sh" "/lib/kdump-lib.sh"

    inst_hook cmdline 00 "$moddir/early-kdump.sh"

    inst_binary "$KDUMP_KERNEL"

    inst_binary "$KDUMP_INITRD"

    ln_r "$KDUMP_KERNEL" "${KDUMP_BOOTDIR}/${KDUMP_IMG}-earlykdump${KDUMP_IMG_EXT}"

    ln_r "$KDUMP_INITRD" "${KDUMP_BOOTDIR}/initramfs-earlykdump.img"

    chmod -x "${initdir}/$KDUMP_KERNEL"

}