kexec-tools/kdump-lib.sh

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#!/bin/sh
#
# Kdump common variables and functions
#
FENCE_KDUMP_CONFIG_FILE="/etc/sysconfig/fence_kdump"
FENCE_KDUMP_SEND="/usr/libexec/fence_kdump_send"
FENCE_KDUMP_NODES_FILE="/etc/fence_kdump_nodes"
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 $FENCE_KDUMP_SEND ] || return 1
# fence kdump not configured?
(pcs cluster cib | grep -q 'type="fence_kdump"') &> /dev/null || return 1
}
get_user_configured_dump_disk()
{
local _target
if is_ssh_dump_target || is_nfs_dump_target; then
return
fi
_target=$(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-`)
}