273 lines
7.9 KiB
Bash
Executable File
273 lines
7.9 KiB
Bash
Executable File
#!/bin/bash
|
|
|
|
. $dracutfunctions
|
|
|
|
check() {
|
|
[[ $debug ]] && set -x
|
|
#kdumpctl sets this explicitly
|
|
if [ -z "$IN_KDUMP" ] || [ ! -f /etc/kdump.conf ]
|
|
then
|
|
return 1
|
|
fi
|
|
return 0
|
|
}
|
|
|
|
depends() {
|
|
echo "base shutdown"
|
|
return 0
|
|
}
|
|
|
|
kdump_to_udev_name() {
|
|
local dev="$1"
|
|
|
|
case "$dev" in
|
|
UUID=*)
|
|
dev=`blkid -U "${dev#UUID=}"`
|
|
;;
|
|
LABEL=*)
|
|
dev=`blkid -L "${dev#LABEL=}"`
|
|
;;
|
|
esac
|
|
echo ${dev#/dev/}
|
|
}
|
|
|
|
kdump_is_bridge() {
|
|
[ -d /sys/class/net/"$1"/bridge ]
|
|
}
|
|
|
|
kdump_is_bond() {
|
|
[ -d /sys/class/net/"$1"/bonding ]
|
|
}
|
|
|
|
#$1: netdev name
|
|
#checking /etc/sysconfig/network-scripts/ifcfg-$1,
|
|
#if it use static ip echo it, or echo null
|
|
kdump_static_ip() {
|
|
. /etc/sysconfig/network-scripts/ifcfg-$1
|
|
if [ -n "$IPADDR" ]; then
|
|
[ -z "$NETMASK" -a -n "$PREFIX" ] && \
|
|
NETMASK=$(ipcalc -m $IPADDR/$PREFIX | cut -d'=' -f2)
|
|
echo -n "${IPADDR}::${GATEWAY}:${NETMASK}::"
|
|
fi
|
|
}
|
|
|
|
# Setup dracut to bringup a given network interface
|
|
kdump_setup_netdev() {
|
|
local _netdev=$1
|
|
local _static _proto
|
|
|
|
_netmac=`ip addr show $_netdev 2>/dev/null|awk '/ether/{ print $2 }'`
|
|
_static=$(kdump_static_ip $_netdev)
|
|
if [ -n "$_static" ]; then
|
|
_proto=none
|
|
else
|
|
_proto=dhcp
|
|
fi
|
|
|
|
echo " ip=${_static}$_netdev:${_proto} ifname=$_netdev:$_netmac rd.neednet=1" > ${initdir}/etc/cmdline.d/40ip.conf
|
|
|
|
if kdump_is_bridge "$_netdev"; then
|
|
echo " bridge=$_netdev:$(cd /sys/class/net/$_netdev/brif/; echo *)" > ${initdir}/etc/cmdline.d/41bridge.conf
|
|
elif kdump_is_bond "$_netdev"; then
|
|
echo " bond=$_netdev:\"$(cat /sys/class/net/$_netdev/bonding/slaves)\"" > ${initdir}/etc/cmdline.d/42bond.conf
|
|
#TODO
|
|
#echo "bondoptions=\"$bondoptions\"" >> /tmp/$$-bond
|
|
else
|
|
:
|
|
fi
|
|
}
|
|
|
|
#Function:kdump_install_net
|
|
#$1: config values of net line in kdump.conf
|
|
kdump_install_net() {
|
|
local _server _netdev
|
|
local config_val="$1"
|
|
|
|
if strstr "$config_val" "@"; then
|
|
_server=`echo $config_val | sed 's/.*@//' | cut -d':' -f1`
|
|
else
|
|
_server=$(echo $config_val | sed -e 's#\(.*\):.*#\1#')
|
|
fi
|
|
|
|
_need_dns=`echo $_server|grep "[a-zA-Z]"`
|
|
[ -n "$_need_dns" ] && _server=`getent hosts $_server|cut -d' ' -f1`
|
|
|
|
_netdev=`/sbin/ip route get to $_server 2>&1`
|
|
[ $? != 0 ] && echo "Bad kdump location: $config_val" && exit 1
|
|
|
|
#the field in the ip output changes if we go to another subnet
|
|
if [ -n "`echo $_netdev | grep via`" ]
|
|
then
|
|
# we are going to a different subnet
|
|
_netdev=`echo $_netdev|awk '{print $5;}'|head -n 1`
|
|
else
|
|
# we are on the same subnet
|
|
_netdev=`echo $_netdev|awk '{print $3}'|head -n 1`
|
|
fi
|
|
|
|
kdump_setup_netdev "${_netdev}"
|
|
}
|
|
|
|
#install kdump.conf and what user specifies in kdump.conf
|
|
kdump_install_conf() {
|
|
sed -ne '/^#/!p' /etc/kdump.conf > /tmp/$$-kdump.conf
|
|
|
|
while read config_opt config_val;
|
|
do
|
|
case "$config_opt" in
|
|
ext[234]|xfs|btrfs|minix|raw)
|
|
sed -i -e "s#$config_val#/dev/$(kdump_to_udev_name $config_val)#" /tmp/$$-kdump.conf
|
|
;;
|
|
net)
|
|
kdump_install_net "$config_val"
|
|
;;
|
|
esac
|
|
done < /etc/kdump.conf
|
|
|
|
inst "/tmp/$$-kdump.conf" "/etc/kdump.conf"
|
|
}
|
|
|
|
kdump_iscsi_get_rec_val() {
|
|
|
|
local result
|
|
|
|
# The open-iscsi 742 release changed to using flat files in
|
|
# /var/lib/iscsi.
|
|
|
|
result=$(/sbin/iscsiadm --show -m session -r ${1} | grep "^${2} = ")
|
|
result=${result##* = }
|
|
echo $result
|
|
}
|
|
|
|
kdump_get_iscsi_initiator() {
|
|
local _initiator
|
|
local initiator_conf="/etc/iscsi/initiatorname.iscsi"
|
|
|
|
[ -f "$initiator_conf" ] || return 1
|
|
|
|
while read _initiator; do
|
|
[ -z "${_initiator%%#*}" ] && continue # Skip comment lines
|
|
|
|
case $_initiator in
|
|
InitiatorName=*)
|
|
initiator=${_initiator#InitiatorName=}
|
|
echo "rd.iscsi.initiator=${initiator}"
|
|
return 0;;
|
|
*) ;;
|
|
esac
|
|
done < ${initiator_conf}
|
|
|
|
return 1
|
|
}
|
|
|
|
# No ibft handling yet.
|
|
kdump_setup_iscsi_device() {
|
|
local path=$1
|
|
local tgt_name; local tgt_ipaddr;
|
|
local username; local password; local userpwd_str;
|
|
local username_in; local password_in; local userpwd_in_str;
|
|
local netdev
|
|
local idev
|
|
local netroot_str ; local initiator_str;
|
|
local netroot_conf="${initdir}/etc/cmdline.d/50iscsi.conf"
|
|
local initiator_conf="/etc/iscsi/initiatorname.iscsi"
|
|
|
|
dinfo "Found iscsi component $1"
|
|
|
|
# Check once before getting explicit values, so we can output a decent
|
|
# error message.
|
|
|
|
if ! /sbin/iscsiadm -m session -r ${path} >/dev/null ; then
|
|
derror "Unable to find iscsi record for $path"
|
|
return 1
|
|
fi
|
|
|
|
tgt_name=$(kdump_iscsi_get_rec_val ${path} "node.name")
|
|
tgt_ipaddr=$(kdump_iscsi_get_rec_val ${path} "node.conn\[0\].address")
|
|
|
|
# get and set username and password details
|
|
username=$(kdump_iscsi_get_rec_val ${path} "node.session.auth.username")
|
|
[ "$username" == "<empty>" ] && username=""
|
|
password=$(kdump_iscsi_get_rec_val ${path} "node.session.auth.password")
|
|
[ "$password" == "<empty>" ] && password=""
|
|
username_in=$(kdump_iscsi_get_rec_val ${path} "node.session.auth.username_in")
|
|
[ -n "$username" ] && userpwd_str="$username:$password"
|
|
|
|
# get and set incoming username and password details
|
|
[ "$username_in" == "<empty>" ] && username_in=""
|
|
password_in=$(kdump_iscsi_get_rec_val ${path} "node.session.auth.password_in")
|
|
[ "$password_in" == "<empty>" ] && password_in=""
|
|
|
|
[ -n "$username_in" ] && userpwd_in_str=":$username_in:$password_in"
|
|
|
|
netdev=$(/sbin/ip route get to ${tgt_ipaddr} | \
|
|
sed 's|.*dev \(.*\).*|\1|g' | awk '{ print $1; exit }')
|
|
|
|
kdump_setup_netdev $netdev
|
|
|
|
# prepare netroot= command line
|
|
# FIXME: IPV6 addresses require explicit [] around $tgt_ipaddr
|
|
# FIXME: Do we need to parse and set other parameters like protocol, port
|
|
# iscsi_iface_name, netdev_name, LUN etc.
|
|
|
|
netroot_str="netroot=iscsi:${userpwd_str}${userpwd_in_str}@$tgt_ipaddr::::$tgt_name"
|
|
|
|
[[ -f $netroot_conf ]] || touch $netroot_conf
|
|
|
|
# If netroot target does not exist already, append.
|
|
if ! grep -q $netroot_str $netroot_conf; then
|
|
echo $netroot_str >> $netroot_conf
|
|
dinfo "Appended $netroot_str to $netroot_conf"
|
|
fi
|
|
|
|
# Setup initator
|
|
initiator_str=$(kdump_get_iscsi_initiator)
|
|
[ $? -ne "0" ] && derror "Failed to get initiator name" && return 1
|
|
|
|
# If initiator details do not exist already, append.
|
|
if ! grep -q "$initiator_str" $netroot_conf; then
|
|
echo "$initiator_str" >> $netroot_conf
|
|
dinfo "Appended "$initiator_str" to $netroot_conf"
|
|
fi
|
|
}
|
|
|
|
kdump_check_iscsi_targets () {
|
|
# If our prerequisites are not met, fail anyways.
|
|
type -P iscsistart >/dev/null || return 1
|
|
|
|
kdump_check_setup_iscsi() (
|
|
local _dev
|
|
_dev=$(get_maj_min $1)
|
|
|
|
[[ -L /sys/dev/block/$_dev ]] || return
|
|
cd "$(readlink -f /sys/dev/block/$_dev)"
|
|
until [[ -d sys || -d iscsi_session ]]; do
|
|
cd ..
|
|
done
|
|
[[ -d iscsi_session ]] && kdump_setup_iscsi_device "$PWD"
|
|
)
|
|
|
|
[[ $hostonly ]] || [[ $mount_needs ]] && {
|
|
for_each_host_dev_fs kdump_check_setup_iscsi
|
|
}
|
|
}
|
|
|
|
|
|
install() {
|
|
kdump_install_conf
|
|
inst "$moddir/monitor_dd_progress" "/kdumpscripts/monitor_dd_progress"
|
|
chmod +x ${initdir}/kdumpscripts/monitor_dd_progress
|
|
inst "/bin/dd" "/bin/dd"
|
|
inst "/bin/tail" "/bin/tail"
|
|
inst "/bin/date" "/bin/date"
|
|
inst "/bin/sync" "/bin/sync"
|
|
inst "/bin/cut" "/bin/cut"
|
|
inst "/sbin/makedumpfile" "/sbin/makedumpfile"
|
|
inst_hook pre-pivot 9999 "$moddir/kdump.sh"
|
|
|
|
# Check for all the devices and if any device is iscsi, bring up iscsi
|
|
# target. Ideally all this should be pushed into dracut iscsi module
|
|
# at some point of time.
|
|
kdump_check_iscsi_targets
|
|
}
|