b47c0915d2
Currently net options means either nfs or ssh dump. Better to split these two into standalone options. That's more clear to user. after the split, ssh dump need user specify "ssh user@host" nfs dump need user specify "nfs host:nfsshare" Signed-off-by: Dave Young <dyoung@redhat.com> Acked-by: Vivek Goyal <vgoyal@redhat.com>
357 lines
10 KiB
Bash
Executable File
357 lines
10 KiB
Bash
Executable File
#!/bin/bash
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. $dracutfunctions
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check() {
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[[ $debug ]] && set -x
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#kdumpctl sets this explicitly
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if [ -z "$IN_KDUMP" ] || [ ! -f /etc/kdump.conf ]
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then
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return 1
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fi
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return 0
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}
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depends() {
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echo "base shutdown"
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return 0
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}
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kdump_to_udev_name() {
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local dev="$1"
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case "$dev" in
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UUID=*)
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dev=`blkid -U "${dev#UUID=}"`
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;;
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LABEL=*)
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dev=`blkid -L "${dev#LABEL=}"`
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;;
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esac
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echo ${dev#/dev/}
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}
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kdump_is_bridge() {
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[ -d /sys/class/net/"$1"/bridge ]
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}
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kdump_is_bond() {
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[ -d /sys/class/net/"$1"/bonding ]
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}
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kdump_is_vlan() {
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[ -f /proc/net/vlan/"$1" ]
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}
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# $1: netdev name
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kdump_setup_dns() {
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_dnsfile=${initdir}/etc/cmdline.d/42dns.conf
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. /etc/sysconfig/network-scripts/ifcfg-$1
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[ -n "$DNS1" ] && echo "nameserver=$DNS1" > "$_dnsfile"
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[ -n "$DNS2" ] && echo "nameserver=$DNS2" >> "$_dnsfile"
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}
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#$1: netdev name
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#checking /etc/sysconfig/network-scripts/ifcfg-$1,
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#if it use static ip echo it, or echo null
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kdump_static_ip() {
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. /etc/sysconfig/network-scripts/ifcfg-$1
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if [ -n "$IPADDR" ]; then
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[ -z "$NETMASK" -a -n "$PREFIX" ] && \
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NETMASK=$(ipcalc -m $IPADDR/$PREFIX | cut -d'=' -f2)
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echo -n "${IPADDR}::${GATEWAY}:${NETMASK}::"
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fi
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}
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kdump_get_mac_addr() {
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echo `ip addr show $1 2>/dev/null|awk '/ether/{ print $2 }'`
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}
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kdump_setup_bridge() {
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local _netdev=$1
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for _dev in `ls /sys/class/net/$_netdev/brif/`; do
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echo -n " ifname=$_dev:$(kdump_get_mac_addr $_dev)" >> ${initdir}/etc/cmdline.d/41bridge.conf
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done
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echo " bridge=$_netdev:$(cd /sys/class/net/$_netdev/brif/; echo * | sed -e 's/ /,/g')" >> ${initdir}/etc/cmdline.d/41bridge.conf
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}
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kdump_get_bond_mode() {
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local _dev=$1
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awk '{print $2}' /sys/class/net/$_dev/bonding/mode
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}
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kdump_setup_bond() {
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local _netdev=$1
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for _dev in `cat /sys/class/net/$_netdev/bonding/slaves`; do
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echo -n " ifname=$_dev:$(kdump_get_mac_addr $_dev)" >> ${initdir}/etc/cmdline.d/42bond.conf
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done
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echo -n " bond=$_netdev:$(sed -e 's/ /,/g' /sys/class/net/$_netdev/bonding/slaves)" >> ${initdir}/etc/cmdline.d/42bond.conf
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#TODO: get other options as well
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bondoptions="mode=$(kdump_get_bond_mode $_netdev)"
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echo " bondoptions=\"$bondoptions\"" >> ${initdir}/etc/cmdline.d/42bond.conf
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}
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kdump_setup_vlan() {
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local _netdev=$1
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local _phydev="$(awk '/^Device:/{print $2}' /proc/net/vlan/"$_netdev")"
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local _netmac="$(kdump_get_mac_addr $_phydev)"
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echo " vlan=$_netdev:$_phydev" > ${initdir}/etc/cmdline.d/43vlan.conf
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#Just support vlan over bond, it is not easy
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#to support all other complex setup
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if kdump_is_bridge "$_phydev"; then
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derror "Vlan over bridge is not supported!"
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exit 1
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elif kdump_is_bond "$_phydev"; then
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kdump_setup_bond "$_phydev"
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else
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echo " vlan=$_netdev:$_phydev ifname=$_phydev:$_netmac" > ${initdir}/etc/cmdline.d/43vlan.conf
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fi
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}
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# setup s390 znet cmdline
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# $1: netdev name
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kdump_setup_znet() {
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local _options=""
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. /etc/sysconfig/network-scripts/ifcfg-$1
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for i in $OPTIONS; do
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_options=${_options},$i
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done
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echo rd.znet=${NETTYPE},${SUBCHANNELS}${_options} > ${initdir}/etc/cmdline.d/30znet.conf
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}
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# Setup dracut to bringup a given network interface
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kdump_setup_netdev() {
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local _netdev=$1
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local _static _proto
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if [ "$(uname -m)" = "s390x" ]; then
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kdump_setup_znet $_netdev
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fi
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_netmac=`ip addr show $_netdev 2>/dev/null|awk '/ether/{ print $2 }'`
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_static=$(kdump_static_ip $_netdev)
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if [ -n "$_static" ]; then
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_proto=none
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else
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_proto=dhcp
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fi
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echo " ip=${_static}$_netdev:${_proto}" > ${initdir}/etc/cmdline.d/40ip.conf
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if kdump_is_bridge "$_netdev"; then
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kdump_setup_bridge "$_netdev"
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elif kdump_is_bond "$_netdev"; then
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kdump_setup_bond "$_netdev"
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elif kdump_is_vlan "$_netdev"; then
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kdump_setup_vlan "$_netdev"
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else
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echo -n " ip=${_static}$_netdev:${_proto}" > ${initdir}/etc/cmdline.d/40ip.conf
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echo " ifname=$_netdev:$(kdump_get_mac_addr $_netdev)" >> ${initdir}/etc/cmdline.d/40ip.conf
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fi
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kdump_setup_dns "$_netdev"
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}
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#Function:kdump_install_net
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#$1: config values of net line in kdump.conf
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kdump_install_net() {
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local _server _netdev
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local config_val="$1"
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if strstr "$config_val" "@"; then
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_server=`echo $config_val | sed 's/.*@//' | cut -d':' -f1`
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else
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_server=$(echo $config_val | sed -e 's#\(.*\):.*#\1#')
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fi
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_need_dns=`echo $_server|grep "[a-zA-Z]"`
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[ -n "$_need_dns" ] && _server=`getent hosts $_server|cut -d' ' -f1`
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_netdev=`/sbin/ip route get to $_server 2>&1`
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[ $? != 0 ] && echo "Bad kdump location: $config_val" && exit 1
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#the field in the ip output changes if we go to another subnet
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if [ -n "`echo $_netdev | grep via`" ]
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then
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# we are going to a different subnet
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_netdev=`echo $_netdev|awk '{print $5;}'|head -n 1`
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else
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# we are on the same subnet
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_netdev=`echo $_netdev|awk '{print $3}'|head -n 1`
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fi
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kdump_setup_netdev "${_netdev}"
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}
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#install kdump.conf and what user specifies in kdump.conf
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kdump_install_conf() {
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sed -ne '/^#/!p' /etc/kdump.conf > /tmp/$$-kdump.conf
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while read config_opt config_val;
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do
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case "$config_opt" in
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ext[234]|xfs|btrfs|minix|raw)
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sed -i -e "s#$config_val#/dev/$(kdump_to_udev_name $config_val)#" /tmp/$$-kdump.conf
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;;
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ssh|nfs)
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kdump_install_net "$config_val"
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;;
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kdump_pre|kdump_post|extra_bins)
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dracut_install $config_val
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;;
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core_collector)
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dracut_install "${config_val%% *}"
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;;
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esac
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done < /etc/kdump.conf
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inst "/tmp/$$-kdump.conf" "/etc/kdump.conf"
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rm -f /tmp/$$-kdump.conf
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}
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kdump_iscsi_get_rec_val() {
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local result
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# The open-iscsi 742 release changed to using flat files in
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# /var/lib/iscsi.
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result=$(/sbin/iscsiadm --show -m session -r ${1} | grep "^${2} = ")
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result=${result##* = }
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echo $result
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}
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kdump_get_iscsi_initiator() {
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local _initiator
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local initiator_conf="/etc/iscsi/initiatorname.iscsi"
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[ -f "$initiator_conf" ] || return 1
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while read _initiator; do
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[ -z "${_initiator%%#*}" ] && continue # Skip comment lines
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case $_initiator in
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InitiatorName=*)
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initiator=${_initiator#InitiatorName=}
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echo "rd.iscsi.initiator=${initiator}"
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return 0;;
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*) ;;
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esac
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done < ${initiator_conf}
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return 1
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}
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# No ibft handling yet.
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kdump_setup_iscsi_device() {
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local path=$1
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local tgt_name; local tgt_ipaddr;
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local username; local password; local userpwd_str;
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local username_in; local password_in; local userpwd_in_str;
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local netdev
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local idev
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local netroot_str ; local initiator_str;
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local netroot_conf="${initdir}/etc/cmdline.d/50iscsi.conf"
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local initiator_conf="/etc/iscsi/initiatorname.iscsi"
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dinfo "Found iscsi component $1"
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# Check once before getting explicit values, so we can output a decent
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# error message.
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if ! /sbin/iscsiadm -m session -r ${path} >/dev/null ; then
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derror "Unable to find iscsi record for $path"
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return 1
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fi
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tgt_name=$(kdump_iscsi_get_rec_val ${path} "node.name")
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tgt_ipaddr=$(kdump_iscsi_get_rec_val ${path} "node.conn\[0\].address")
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# get and set username and password details
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username=$(kdump_iscsi_get_rec_val ${path} "node.session.auth.username")
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[ "$username" == "<empty>" ] && username=""
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password=$(kdump_iscsi_get_rec_val ${path} "node.session.auth.password")
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[ "$password" == "<empty>" ] && password=""
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username_in=$(kdump_iscsi_get_rec_val ${path} "node.session.auth.username_in")
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[ -n "$username" ] && userpwd_str="$username:$password"
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# get and set incoming username and password details
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[ "$username_in" == "<empty>" ] && username_in=""
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password_in=$(kdump_iscsi_get_rec_val ${path} "node.session.auth.password_in")
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[ "$password_in" == "<empty>" ] && password_in=""
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[ -n "$username_in" ] && userpwd_in_str=":$username_in:$password_in"
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netdev=$(/sbin/ip route get to ${tgt_ipaddr} | \
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sed 's|.*dev \(.*\).*|\1|g' | awk '{ print $1; exit }')
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kdump_setup_netdev $netdev
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# prepare netroot= command line
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# FIXME: IPV6 addresses require explicit [] around $tgt_ipaddr
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# FIXME: Do we need to parse and set other parameters like protocol, port
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# iscsi_iface_name, netdev_name, LUN etc.
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netroot_str="netroot=iscsi:${userpwd_str}${userpwd_in_str}@$tgt_ipaddr::::$tgt_name"
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[[ -f $netroot_conf ]] || touch $netroot_conf
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# If netroot target does not exist already, append.
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if ! grep -q $netroot_str $netroot_conf; then
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echo $netroot_str >> $netroot_conf
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dinfo "Appended $netroot_str to $netroot_conf"
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fi
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# Setup initator
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initiator_str=$(kdump_get_iscsi_initiator)
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[ $? -ne "0" ] && derror "Failed to get initiator name" && return 1
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# If initiator details do not exist already, append.
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if ! grep -q "$initiator_str" $netroot_conf; then
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echo "$initiator_str" >> $netroot_conf
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dinfo "Appended "$initiator_str" to $netroot_conf"
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fi
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}
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kdump_check_iscsi_targets () {
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# If our prerequisites are not met, fail anyways.
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type -P iscsistart >/dev/null || return 1
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kdump_check_setup_iscsi() (
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local _dev
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_dev=$(get_maj_min $1)
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[[ -L /sys/dev/block/$_dev ]] || return
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cd "$(readlink -f /sys/dev/block/$_dev)"
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until [[ -d sys || -d iscsi_session ]]; do
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cd ..
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done
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[[ -d iscsi_session ]] && kdump_setup_iscsi_device "$PWD"
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)
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[[ $hostonly ]] || [[ $mount_needs ]] && {
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for_each_host_dev_fs kdump_check_setup_iscsi
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}
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}
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install() {
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kdump_install_conf
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inst "$moddir/monitor_dd_progress" "/kdumpscripts/monitor_dd_progress"
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chmod +x ${initdir}/kdumpscripts/monitor_dd_progress
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inst "/bin/dd" "/bin/dd"
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inst "/bin/tail" "/bin/tail"
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inst "/bin/date" "/bin/date"
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inst "/bin/sync" "/bin/sync"
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inst "/bin/cut" "/bin/cut"
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inst "/sbin/makedumpfile" "/sbin/makedumpfile"
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inst_hook pre-pivot 9999 "$moddir/kdump.sh"
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# Check for all the devices and if any device is iscsi, bring up iscsi
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# target. Ideally all this should be pushed into dracut iscsi module
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# at some point of time.
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kdump_check_iscsi_targets
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}
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