#!/bin/sh

#

# Kdump common variables and functions

#

FENCE_KDUMP_CONFIG_FILE="/etc/sysconfig/fence_kdump"

FENCE_KDUMP_SEND="/usr/libexec/fence_kdump_send"

is_ssh_dump_target()

{

    grep -q "^ssh[[:blank:]].*@" /etc/kdump.conf

}

is_nfs_dump_target()

{

    grep -q "^nfs" /etc/kdump.conf

}

is_raw_dump_target()

{

    grep -q "^raw" /etc/kdump.conf

}

strip_comments()

{

    echo $@ | sed -e 's/\(.*\)#.*/\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 -q '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

    grep -q "^fence_kdump_nodes" /etc/kdump.conf

}

get_user_configured_dump_disk()

{

    local _target

    if is_ssh_dump_target || is_nfs_dump_target; then

        return

    fi

    _target=$(egrep "^ext[234]|^xfs|^btrfs|^minix|^raw" /etc/kdump.conf 2>/dev/null |awk '{print $2}')

    [ -n "$_target" ] && echo $_target

    return

}

is_user_configured_dump_target()

{

    local _target

    if is_ssh_dump_target || is_nfs_dump_target; then

        return 0

    fi

    _target=$(egrep "^ext[234]|^xfs|^btrfs|^minix|^raw" /etc/kdump.conf 2>/dev/null |awk '{print $2}')

    [ -n "$_target" ] && return 0

    return 1

}

get_root_fs_device()

{

    local _target

    _target=$(findmnt -k -f -n -o SOURCE /)

    [ -n "$_target" ] && echo $_target

    return

}

# get_option_value <option_name>

# retrieves value of option defined in kdump.conf

get_option_value() {

    echo $(strip_comments `grep ^$1 /etc/kdump.conf | tail -1 | cut -d\  -f2-`)

}