kexec-tools/kdump-lib.sh
WANG Chao b95a63839a kdump-lib: fix get_option_value()
get_option_value() is used to get the value of $1 configured in
/etc/kdump.conf. But when we use "get_option_value ssh", it can get the
value of "sshkey" instead of "ssh".

Fix the regexp pattern to get an exact match.

Signed-off-by: WANG Chao <chaowang@redhat.com>
Acked-by: Baoquan He <bhe@redhat.com>
2014-11-04 11:42:04 +08:00

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#!/bin/sh
#
# Kdump common variables and functions
#
DEFAULT_PATH="/var/crash/"
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
}
is_fs_type_nfs()
{
local _fstype=$1
[ $_fstype = "nfs" ] || [ $_fstype = "nfs4" ] && return 0
return 1
}
is_fs_dump_target()
{
egrep -q "^ext[234]|^xfs|^btrfs|^minix" /etc/kdump.conf
}
is_user_configured_dump_target()
{
return $(is_ssh_dump_target || is_nfs_dump_target || is_raw_dump_target || is_fs_dump_target)
}
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 $_target
return
}
get_root_fs_device()
{
local _target
_target=$(findmnt -k -f -n -o SOURCE /)
[ -n "$_target" ] && echo $_target
return
}
get_mntpoint_from_path()
{
echo $(df $1 | tail -1 | awk '{print $NF}')
}
get_target_from_path()
{
echo $(df $1 | tail -1 | awk '{print $1}')
}
get_fs_type_from_target()
{
echo $(findmnt -k -f -n -r -o FSTYPE $1)
}
get_mntpoint_from_target()
{
echo $(findmnt -k -f -n -r -o TARGET $1)
}
# get_option_value <option_name>
# retrieves value of option defined in kdump.conf
get_option_value() {
echo $(strip_comments `grep "^$1[[:space:]]\+" /etc/kdump.conf | tail -1 | cut -d\ -f2-`)
}
#This function compose a absolute path with the mount
#point and the relative $SAVE_PATH.
#target is passed in as argument, could be UUID, LABEL,
#block device or even nfs server export of the form of
#"my.server.com:/tmp/export"?
#And possibly this could be used for both default case
#as well as when dump taret is specified. When dump
#target is not specified, then $target would be null.
make_absolute_save_path()
{
local _target=$1
local _mnt
[ -n $_target ] && _mnt=$(get_mntpoint_from_target $1)
echo "${_mnt}/$SAVE_PATH"
}
check_save_path_fs()
{
local _path=$1
if [ ! -d $_path ]; then
perror_exit "Dump path $_path does not exist."
fi
}