bash scripts: fix variable quoting issue

Fixed quoting issues found by shellcheck, no feature
change. This should fix many errors when there is space
in any shell variables, eg. dump target's name/path/id.

False positives are marked with "# shellcheck disable=SCXXXX", for
example, args are expected to split so it should not be quoted.

And replaced some `cut -d ' ' -fX` with `awk '{print $X}'` since cut
is fragile, and doesn't work well with any quoted strings that have
redundant space.

Following quoting related issues are fixed (check the link
for example code and what could go wrong):

https://github.com/koalaman/shellcheck/wiki/SC2046
https://github.com/koalaman/shellcheck/wiki/SC2053
https://github.com/koalaman/shellcheck/wiki/SC2068
https://github.com/koalaman/shellcheck/wiki/SC2086
https://github.com/koalaman/shellcheck/wiki/SC2206

Signed-off-by: Kairui Song <kasong@redhat.com>
Acked-by: Philipp Rudo <prudo@redhat.com>
This commit is contained in:
Kairui Song 2021-09-08 17:21:41 +08:00
parent 70978c00e5
commit 86538ca6e2
4 changed files with 220 additions and 216 deletions

View File

@ -25,7 +25,7 @@ prepare_kernel_initrd() {
prepare_kdump_bootinfo
# $kernel is a variable from dracut
if [[ "$KDUMP_KERNELVER" != $kernel ]]; then
if [[ "$KDUMP_KERNELVER" != "$kernel" ]]; then
dwarn "Using kernel version '$KDUMP_KERNELVER' for early kdump," \
"but the initramfs is generated for kernel version '$kernel'"
fi

View File

@ -53,7 +53,7 @@ depends() {
_dep="$_dep network"
fi
echo $_dep
echo "$_dep"
}
kdump_is_bridge() {
@ -65,7 +65,7 @@ kdump_is_bond() {
}
kdump_is_team() {
[[ -f /usr/bin/teamnl ]] && teamnl $1 ports &> /dev/null
[[ -f /usr/bin/teamnl ]] && teamnl "$1" ports &> /dev/null
}
kdump_is_vlan() {
@ -77,9 +77,9 @@ source_ifcfg_file() {
local ifcfg_file
dwarning "Network Scripts are deprecated. You are encouraged to set up network by NetworkManager."
ifcfg_file=$(get_ifcfg_filename $1)
ifcfg_file=$(get_ifcfg_filename "$1")
if [[ -f "${ifcfg_file}" ]]; then
. ${ifcfg_file}
. "${ifcfg_file}"
else
dwarning "The ifcfg file of $1 is not found!"
fi
@ -93,7 +93,8 @@ kdump_setup_dns() {
local _dnsfile=${initdir}/etc/cmdline.d/42dns.conf
_tmp=$(get_nmcli_value_by_field "$_nm_show_cmd" "IP4.DNS")
array=(${_tmp//|/ })
# shellcheck disable=SC2206
array=( ${_tmp//|/ } )
if [[ ${array[*]} ]]; then
for _dns in "${array[@]}"
do
@ -108,10 +109,10 @@ kdump_setup_dns() {
while read -r content;
do
_nameserver=$(echo $content | grep ^nameserver)
_nameserver=$(echo "$content" | grep ^nameserver)
[[ -z "$_nameserver" ]] && continue
_dns=$(echo $_nameserver | cut -d' ' -f2)
_dns=$(echo "$_nameserver" | awk '{print $2}')
[[ -z "$_dns" ]] && continue
if [[ ! -f $_dnsfile ]] || ! grep -q "$_dns" "$_dnsfile" ; then
@ -237,14 +238,14 @@ kdump_static_ip() {
local _netdev="$1" _srcaddr="$2" kdumpnic="$3" _ipv6_flag
local _netmask _gateway _ipaddr _target _nexthop _prefix
_ipaddr=$(ip addr show dev $_netdev permanent | awk "/ $_srcaddr\/.* /{print \$2}")
_ipaddr=$(ip addr show dev "$_netdev" permanent | awk "/ $_srcaddr\/.* /{print \$2}")
if is_ipv6_address $_srcaddr; then
if is_ipv6_address "$_srcaddr"; then
_ipv6_flag="-6"
fi
if [[ -n "$_ipaddr" ]]; then
_gateway=$(ip $_ipv6_flag route list dev $_netdev | \
_gateway=$(ip $_ipv6_flag route list dev "$_netdev" | \
awk '/^default /{print $3}' | head -n 1)
if [[ "x" != "x"$_ipv6_flag ]]; then
@ -266,23 +267,23 @@ kdump_static_ip() {
/sbin/ip $_ipv6_flag route show | grep -v default |\
grep ".*via.* $_netdev " | grep -v "^[[:space:]]*nexthop" |\
while read -r _route; do
_target=$(echo $_route | cut -d ' ' -f1)
_nexthop=$(echo $_route | cut -d ' ' -f3)
_target=$(echo "$_route" | awk '{print $1}')
_nexthop=$(echo "$_route" | awk '{print $3}')
if [[ "x" != "x"$_ipv6_flag ]]; then
_target="[$_target]"
_nexthop="[$_nexthop]"
fi
echo "rd.route=$_target:$_nexthop:$kdumpnic"
done >> ${initdir}/etc/cmdline.d/45route-static.conf
done >> "${initdir}/etc/cmdline.d/45route-static.conf"
kdump_handle_mulitpath_route $_netdev $_srcaddr $kdumpnic
kdump_handle_mulitpath_route "$_netdev" "$_srcaddr" "$kdumpnic"
}
kdump_handle_mulitpath_route() {
local _netdev="$1" _srcaddr="$2" kdumpnic="$3" _ipv6_flag
local _target _nexthop _route _weight _max_weight _rule
if is_ipv6_address $_srcaddr; then
if is_ipv6_address "$_srcaddr"; then
_ipv6_flag="-6"
fi
@ -308,20 +309,20 @@ kdump_handle_mulitpath_route() {
_target=$(echo "$_route" | cut -d ' ' -f1)
_rule="" _max_weight=0 _weight=0
fi
done >> ${initdir}/etc/cmdline.d/45route-static.conf\
done >> "${initdir}/etc/cmdline.d/45route-static.conf"\
<<< "$(/sbin/ip $_ipv6_flag route show)"
[[ -n $_rule ]] && echo $_rule >> ${initdir}/etc/cmdline.d/45route-static.conf
[[ -n $_rule ]] && echo "$_rule" >> "${initdir}/etc/cmdline.d/45route-static.conf"
}
kdump_get_mac_addr() {
cat /sys/class/net/$1/address
cat "/sys/class/net/$1/address"
}
#Bonding or team master modifies the mac address
#of its slaves, we should use perm address
kdump_get_perm_addr() {
local addr=$(ethtool -P $1 | sed -e 's/Permanent address: //')
local addr=$(ethtool -P "$1" | sed -e 's/Permanent address: //')
if [[ -z "$addr" ]] || [[ "$addr" = "00:00:00:00:00:00" ]]
then
derror "Can't get the permanent address of $1"
@ -367,9 +368,9 @@ kdump_setup_bridge() {
elif kdump_is_vlan "$_dev"; then
kdump_setup_vlan "$_dev"
else
_mac=$(kdump_get_mac_addr $_dev)
_kdumpdev=$(kdump_setup_ifname $_dev)
echo -n " ifname=$_kdumpdev:$_mac" >> ${initdir}/etc/cmdline.d/41bridge.conf
_mac=$(kdump_get_mac_addr "$_dev")
_kdumpdev=$(kdump_setup_ifname "$_dev")
echo -n " ifname=$_kdumpdev:$_mac" >> "${initdir}/etc/cmdline.d/41bridge.conf"
fi
_brif+="$_kdumpdev,"
done
@ -383,10 +384,10 @@ kdump_setup_bond() {
local _netdev="$1"
local _nm_show_cmd="$2"
local _dev _mac _slaves _kdumpdev _bondoptions
for _dev in $(cat /sys/class/net/$_netdev/bonding/slaves); do
_mac=$(kdump_get_perm_addr $_dev)
_kdumpdev=$(kdump_setup_ifname $_dev)
echo -n " ifname=$_kdumpdev:$_mac" >> ${initdir}/etc/cmdline.d/42bond.conf
for _dev in $(cat "/sys/class/net/$_netdev/bonding/slaves"); do
_mac=$(kdump_get_perm_addr "$_dev")
_kdumpdev=$(kdump_setup_ifname "$_dev")
echo -n " ifname=$_kdumpdev:$_mac" >> "${initdir}/etc/cmdline.d/42bond.conf"
_slaves+="$_kdumpdev,"
done
echo -n " bond=$_netdev:${_slaves%,}" >> "${initdir}/etc/cmdline.d/42bond.conf"
@ -395,8 +396,8 @@ kdump_setup_bond() {
if [[ -z "$_bondoptions" ]]; then
dwarning "Failed to get bond configuration via nmlci output. Now try sourcing ifcfg script."
source_ifcfg_file $_netdev
_bondoptions="$(echo $BONDING_OPTS | xargs echo | tr " " ",")"
source_ifcfg_file "$_netdev"
_bondoptions="$(echo "$BONDING_OPTS" | xargs echo | tr " " ",")"
fi
if [[ -z "$_bondoptions" ]]; then
@ -404,36 +405,36 @@ kdump_setup_bond() {
exit 1
fi
echo ":$_bondoptions" >> ${initdir}/etc/cmdline.d/42bond.conf
echo ":$_bondoptions" >> "${initdir}/etc/cmdline.d/42bond.conf"
}
kdump_setup_team() {
local _netdev=$1
local _dev _mac _slaves _kdumpdev
for _dev in $(teamnl $_netdev ports | awk -F':' '{print $2}'); do
_mac=$(kdump_get_perm_addr $_dev)
_kdumpdev=$(kdump_setup_ifname $_dev)
echo -n " ifname=$_kdumpdev:$_mac" >> ${initdir}/etc/cmdline.d/44team.conf
for _dev in $(teamnl "$_netdev" ports | awk -F':' '{print $2}'); do
_mac=$(kdump_get_perm_addr "$_dev")
_kdumpdev=$(kdump_setup_ifname "$_dev")
echo -n " ifname=$_kdumpdev:$_mac" >> "${initdir}/etc/cmdline.d/44team.conf"
_slaves+="$_kdumpdev,"
done
echo " team=$_netdev:${_slaves%,}" >> "${initdir}/etc/cmdline.d/44team.conf"
#Buggy version teamdctl outputs to stderr!
#Try to use the latest version of teamd.
teamdctl "$_netdev" config dump > ${initdir}/tmp/$$-$_netdev.conf
teamdctl "$_netdev" config dump > "${initdir}/tmp/$$-$_netdev.conf"
if [[ $? -ne 0 ]]
then
derror "teamdctl failed."
exit 1
fi
inst_dir /etc/teamd
inst_simple ${initdir}/tmp/$$-$_netdev.conf "/etc/teamd/$_netdev.conf"
rm -f ${initdir}/tmp/$$-$_netdev.conf
inst_simple "${initdir}/tmp/$$-$_netdev.conf" "/etc/teamd/$_netdev.conf"
rm -f "${initdir}/tmp/$$-$_netdev.conf"
}
kdump_setup_vlan() {
local _netdev=$1
local _phydev="$(awk '/^Device:/{print $2}' /proc/net/vlan/"$_netdev")"
local _netmac="$(kdump_get_mac_addr $_phydev)"
local _netmac="$(kdump_get_mac_addr "$_phydev")"
local _kdumpdev
#Just support vlan over bond and team
@ -445,10 +446,10 @@ kdump_setup_vlan() {
if [[ $? != 0 ]]; then
exit 1
fi
echo " vlan=$(kdump_setup_ifname $_netdev):$_phydev" > ${initdir}/etc/cmdline.d/43vlan.conf
echo " vlan=$(kdump_setup_ifname "$_netdev"):$_phydev" > "${initdir}/etc/cmdline.d/43vlan.conf"
else
_kdumpdev="$(kdump_setup_ifname $_phydev)"
echo " vlan=$(kdump_setup_ifname $_netdev):$_kdumpdev ifname=$_kdumpdev:$_netmac" > ${initdir}/etc/cmdline.d/43vlan.conf
_kdumpdev="$(kdump_setup_ifname "$_phydev")"
echo " vlan=$(kdump_setup_ifname "$_netdev"):$_kdumpdev ifname=$_kdumpdev:$_netmac" > "${initdir}/etc/cmdline.d/43vlan.conf"
fi
}
@ -465,7 +466,7 @@ find_online_znet_device() {
for d in $NETWORK_DEVICES
do
[[ ! -f "$d/online" ]] && continue
read -r ONLINE < $d/online
read -r ONLINE < "$d/online"
if [[ $ONLINE -ne 1 ]]; then
continue
fi
@ -473,10 +474,10 @@ find_online_znet_device() {
# device is online)
if [[ -f $d/if_name ]]
then
read -r ifname < $d/if_name
read -r ifname < "$d/if_name"
elif [[ -d $d/net ]]
then
ifname=$(ls $d/net/)
ifname=$(ls "$d/net/")
fi
[[ -n "$ifname" ]] && break
done
@ -500,7 +501,7 @@ kdump_setup_znet() {
if [[ -z "$NETTYPE" || -z "$SUBCHANNELS" || -z "$_options" ]]; then
dwarning "Failed to get znet configuration via nmlci output. Now try sourcing ifcfg script."
source_ifcfg_file $_netdev
source_ifcfg_file "$_netdev"
for i in $OPTIONS; do
_options=${_options},$i
done
@ -510,17 +511,17 @@ kdump_setup_znet() {
exit 1
fi
echo rd.znet=${NETTYPE},${SUBCHANNELS},${_options} rd.znet_ifname=$_netdev:${SUBCHANNELS} > ${initdir}/etc/cmdline.d/30znet.conf
echo "rd.znet=${NETTYPE},${SUBCHANNELS},${_options} rd.znet_ifname=$_netdev:${SUBCHANNELS}" > "${initdir}/etc/cmdline.d/30znet.conf"
}
kdump_get_ip_route()
{
local _route=$(/sbin/ip -o route get to $1 2>&1)
local _route=$(/sbin/ip -o route get to "$1" 2>&1)
if [[ $? != 0 ]]; then
derror "Bad kdump network destination: $1"
exit 1
fi
echo $_route
echo "$_route"
}
kdump_get_ip_route_field()
@ -530,15 +531,15 @@ kdump_get_ip_route_field()
kdump_get_remote_ip()
{
local _remote=$(get_remote_host $1) _remote_temp
if is_hostname $_remote; then
_remote_temp=$(getent ahosts $_remote | grep -v : | head -n 1)
local _remote=$(get_remote_host "$1") _remote_temp
if is_hostname "$_remote"; then
_remote_temp=$(getent ahosts "$_remote" | grep -v : | head -n 1)
if [[ -z "$_remote_temp" ]]; then
_remote_temp=$(getent ahosts $_remote | head -n 1)
_remote_temp=$(getent ahosts "$_remote" | head -n 1)
fi
_remote=$(echo $_remote_temp | cut -d' ' -f1)
_remote=$(echo "$_remote_temp" | awk '{print $1}')
fi
echo $_remote
echo "$_remote"
}
# Setup dracut to bring up network interface that enable
@ -549,13 +550,13 @@ kdump_install_net() {
local _static _proto _ip_conf _ip_opts _ifname_opts
local _znet_netdev _nm_show_cmd_znet
_destaddr=$(kdump_get_remote_ip $1)
_route=$(kdump_get_ip_route $_destaddr)
_destaddr=$(kdump_get_remote_ip "$1")
_route=$(kdump_get_ip_route "$_destaddr")
_srcaddr=$(kdump_get_ip_route_field "$_route" "src")
_netdev=$(kdump_get_ip_route_field "$_route" "dev")
_nm_show_cmd=$(get_nmcli_connection_show_cmd_by_ifname "$_netdev")
_netmac=$(kdump_get_mac_addr $_netdev)
kdumpnic=$(kdump_setup_ifname $_netdev)
_netmac=$(kdump_get_mac_addr "$_netdev")
kdumpnic=$(kdump_setup_ifname "$_netdev")
_znet_netdev=$(find_online_znet_device)
if [[ -n "$_znet_netdev" ]]; then
@ -567,10 +568,10 @@ kdump_install_net() {
fi
fi
_static=$(kdump_static_ip $_netdev $_srcaddr $kdumpnic)
_static=$(kdump_static_ip "$_netdev" "$_srcaddr" "$kdumpnic")
if [[ -n "$_static" ]]; then
_proto=none
elif is_ipv6_address $_srcaddr; then
elif is_ipv6_address "$_srcaddr"; then
_proto=auto6
else
_proto=dhcp
@ -583,9 +584,9 @@ kdump_install_net() {
# so we have to avoid adding duplicates
# We should also check /proc/cmdline for existing ip=xx arg.
# For example, iscsi boot will specify ip=xxx arg in cmdline.
if [[ ! -f $_ip_conf ]] || ! grep -q $_ip_opts $_ip_conf &&\
if [[ ! -f $_ip_conf ]] || ! grep -q "$_ip_opts" "$_ip_conf" &&\
! grep -q "ip=[^[:space:]]*$_netdev" /proc/cmdline; then
echo "$_ip_opts" >> $_ip_conf
echo "$_ip_opts" >> "$_ip_conf"
fi
if kdump_is_bridge "$_netdev"; then
@ -601,14 +602,14 @@ kdump_install_net() {
kdump_setup_vlan "$_netdev"
else
_ifname_opts=" ifname=$kdumpnic:$_netmac"
echo "$_ifname_opts" >> $_ip_conf
echo "$_ifname_opts" >> "$_ip_conf"
fi
kdump_setup_dns "$_netdev" "$_nm_show_cmd"
if [[ ! -f ${initdir}/etc/cmdline.d/50neednet.conf ]]; then
# network-manager module needs this parameter
echo "rd.neednet" >> ${initdir}/etc/cmdline.d/50neednet.conf
echo "rd.neednet" >> "${initdir}/etc/cmdline.d/50neednet.conf"
fi
# Save netdev used for kdump as cmdline
@ -620,8 +621,8 @@ kdump_install_net() {
# gateway.
if [[ ! -f ${initdir}/etc/cmdline.d/60kdumpnic.conf ]] &&
[[ ! -f ${initdir}/etc/cmdline.d/70bootdev.conf ]]; then
echo "kdumpnic=$kdumpnic" > ${initdir}/etc/cmdline.d/60kdumpnic.conf
echo "bootdev=$kdumpnic" > ${initdir}/etc/cmdline.d/70bootdev.conf
echo "kdumpnic=$kdumpnic" > "${initdir}/etc/cmdline.d/60kdumpnic.conf"
echo "bootdev=$kdumpnic" > "${initdir}/etc/cmdline.d/70bootdev.conf"
fi
}
@ -630,7 +631,7 @@ kdump_install_pre_post_conf() {
if [[ -d /etc/kdump/pre.d ]]; then
for file in /etc/kdump/pre.d/*; do
if [[ -x "$file" ]]; then
dracut_install $file
dracut_install "$file"
elif [[ $file != "/etc/kdump/pre.d/*" ]]; then
echo "$file is not executable"
fi
@ -640,7 +641,7 @@ kdump_install_pre_post_conf() {
if [[ -d /etc/kdump/post.d ]]; then
for file in /etc/kdump/post.d/*; do
if [[ -x "$file" ]]; then
dracut_install $file
dracut_install "$file"
elif [[ $file != "/etc/kdump/post.d/*" ]]; then
echo "$file is not executable"
fi
@ -655,19 +656,19 @@ default_dump_target_install_conf()
is_user_configured_dump_target && return
_save_path=$(get_bind_mount_source $(get_save_path))
_target=$(get_target_from_path $_save_path)
_mntpoint=$(get_mntpoint_from_target $_target)
_save_path=$(get_bind_mount_source "$(get_save_path)")
_target=$(get_target_from_path "$_save_path")
_mntpoint=$(get_mntpoint_from_target "$_target")
_fstype=$(get_fs_type_from_target $_target)
if is_fs_type_nfs $_fstype; then
_fstype=$(get_fs_type_from_target "$_target")
if is_fs_type_nfs "$_fstype"; then
kdump_install_net "$_target"
_fstype="nfs"
else
_target=$(kdump_get_persistent_dev $_target)
_target=$(kdump_get_persistent_dev "$_target")
fi
echo "$_fstype $_target" >> ${initdir}/tmp/$$-kdump.conf
echo "$_fstype $_target" >> "${initdir}/tmp/$$-kdump.conf"
# don't touch the path under root mount
if [[ "$_mntpoint" != "/" ]]; then
@ -675,8 +676,8 @@ default_dump_target_install_conf()
fi
#erase the old path line, then insert the parsed path
sed -i "/^path/d" ${initdir}/tmp/$$-kdump.conf
echo "path $_save_path" >> ${initdir}/tmp/$$-kdump.conf
sed -i "/^path/d" "${initdir}/tmp/$$-kdump.conf"
echo "path $_save_path" >> "${initdir}/tmp/$$-kdump.conf"
}
#install kdump.conf and what user specifies in kdump.conf
@ -690,12 +691,12 @@ kdump_install_conf() {
# remove inline comments after the end of a directive.
case "$_opt" in
raw)
_pdev=$(persistent_policy="by-id" kdump_get_persistent_dev $_val)
sed -i -e "s#^${_opt}[[:space:]]\+$_val#$_opt $_pdev#" ${initdir}/tmp/$$-kdump.conf
_pdev=$(persistent_policy="by-id" kdump_get_persistent_dev "$_val")
sed -i -e "s#^${_opt}[[:space:]]\+$_val#$_opt $_pdev#" "${initdir}/tmp/$$-kdump.conf"
;;
ext[234]|xfs|btrfs|minix)
_pdev=$(kdump_get_persistent_dev $_val)
sed -i -e "s#^${_opt}[[:space:]]\+$_val#$_opt $_pdev#" ${initdir}/tmp/$$-kdump.conf
_pdev=$(kdump_get_persistent_dev "$_val")
sed -i -e "s#^${_opt}[[:space:]]\+$_val#$_opt $_pdev#" "${initdir}/tmp/$$-kdump.conf"
;;
ssh|nfs)
kdump_install_net "$_val"
@ -706,7 +707,7 @@ kdump_install_conf() {
fi
;;
kdump_pre|kdump_post|extra_bins)
dracut_install $_val
dracut_install "$_val"
;;
core_collector)
dracut_install "${_val%%[[:blank:]]*}"
@ -720,7 +721,7 @@ kdump_install_conf() {
kdump_configure_fence_kdump "${initdir}/tmp/$$-kdump.conf"
inst "${initdir}/tmp/$$-kdump.conf" "/etc/kdump.conf"
rm -f ${initdir}/tmp/$$-kdump.conf
rm -f "${initdir}/tmp/$$-kdump.conf"
}
# Default sysctl parameters should suffice for kdump kernel.
@ -742,9 +743,9 @@ kdump_iscsi_get_rec_val() {
# 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=$(/sbin/iscsiadm --show -m session -r "$1" | grep "^${2} = ")
result=${result##* = }
echo $result
echo "$result"
}
kdump_get_iscsi_initiator() {
@ -770,7 +771,7 @@ kdump_get_iscsi_initiator() {
# Figure out iBFT session according to session type
is_ibft() {
[[ "$(kdump_iscsi_get_rec_val $1 "node.discovery_type")" = fw ]]
[[ "$(kdump_iscsi_get_rec_val "$1" "node.discovery_type")" = fw ]]
}
kdump_setup_iscsi_device() {
@ -786,32 +787,32 @@ kdump_setup_iscsi_device() {
# Check once before getting explicit values, so we can bail out early,
# e.g. in case of pure-hardware(all-offload) iscsi.
if ! /sbin/iscsiadm -m session -r ${path} &>/dev/null ; then
if ! /sbin/iscsiadm -m session -r "$path" &>/dev/null ; then
return 1
fi
if is_ibft ${path}; then
if is_ibft "$path"; then
return
fi
# Remove software iscsi cmdline generated by 95iscsi,
# and let kdump regenerate here.
rm -f ${initdir}/etc/cmdline.d/95iscsi.conf
rm -f "${initdir}/etc/cmdline.d/95iscsi.conf"
tgt_name=$(kdump_iscsi_get_rec_val ${path} "node.name")
tgt_ipaddr=$(kdump_iscsi_get_rec_val ${path} "node.conn\[0\].address")
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 ${path} "node.session.auth.username")
username=$(kdump_iscsi_get_rec_val "$path" "node.session.auth.username")
[[ "$username" == "<empty>" ]] && username=""
password=$(kdump_iscsi_get_rec_val ${path} "node.session.auth.password")
password=$(kdump_iscsi_get_rec_val "$path" "node.session.auth.password")
[[ "$password" == "<empty>" ]] && password=""
username_in=$(kdump_iscsi_get_rec_val ${path} "node.session.auth.username_in")
username_in=$(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 ${path} "node.session.auth.password_in")
password_in=$(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"
@ -822,16 +823,16 @@ kdump_setup_iscsi_device() {
# FIXME: Do we need to parse and set other parameters like protocol, port
# iscsi_iface_name, netdev_name, LUN etc.
if is_ipv6_address $tgt_ipaddr; then
if is_ipv6_address "$tgt_ipaddr"; then
tgt_ipaddr="[$tgt_ipaddr]"
fi
netroot_str="netroot=iscsi:${userpwd_str}${userpwd_in_str}@$tgt_ipaddr::::$tgt_name"
[[ -f $netroot_conf ]] || touch $netroot_conf
[[ -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 >> $netroot_conf
if ! grep -q "$netroot_str" "$netroot_conf"; then
echo "$netroot_str" >> "$netroot_conf"
dinfo "Appended $netroot_str to $netroot_conf"
fi
@ -840,9 +841,9 @@ kdump_setup_iscsi_device() {
[[ $? -ne "0" ]] && derror "Failed to get initiator name" && return 1
# If initiator details do not exist already, append.
if ! grep -q "$initiator_str" $netroot_conf; then
echo "$initiator_str" >> $netroot_conf
dinfo "Appended "$initiator_str" to $netroot_conf"
if ! grep -q "$initiator_str" "$netroot_conf"; then
echo "$initiator_str" >> "$netroot_conf"
dinfo "Appended $initiator_str to $netroot_conf"
fi
}
@ -877,13 +878,13 @@ get_alias() {
for ip in $ips
do
# in /etc/hosts, alias can come at the 2nd column
entries=$(grep $ip /etc/hosts | awk '{ $1=""; print $0 }')
entries=$(grep "$ip" /etc/hosts | awk '{ $1=""; print $0 }')
if [[ $? -eq 0 ]]; then
alias_set="$alias_set $entries"
fi
done
echo $alias_set
echo "$alias_set"
}
is_localhost() {
@ -914,23 +915,23 @@ get_pcs_fence_kdump_nodes() {
# we need to convert each to node1, node2 ... nodeX in each iteration
for node in ${nodelist}; do
# convert $node from 'uname="nodeX"' to 'nodeX'
eval $node
nodename=$uname
eval "$node"
nodename="$uname"
# Skip its own node name
if is_localhost $nodename; then
if is_localhost "$nodename"; then
continue
fi
nodes="$nodes $nodename"
done
echo $nodes
echo "$nodes"
}
# retrieves fence_kdump args from config file
get_pcs_fence_kdump_args() {
if [[ -f $FENCE_KDUMP_CONFIG_FILE ]]; then
. $FENCE_KDUMP_CONFIG_FILE
echo $FENCE_KDUMP_OPTS
. "$FENCE_KDUMP_CONFIG_FILE"
echo "$FENCE_KDUMP_OPTS"
fi
}
@ -941,12 +942,12 @@ get_generic_fence_kdump_nodes() {
nodes=$(kdump_get_conf_val "fence_kdump_nodes")
for node in ${nodes}; do
# Skip its own node name
if is_localhost $node; then
if is_localhost "$node"; then
continue
fi
filtered="$filtered $node"
done
echo $filtered
echo "$filtered"
}
# setup fence_kdump in cluster
@ -963,11 +964,11 @@ kdump_configure_fence_kdump () {
nodes=$(get_pcs_fence_kdump_nodes)
# set appropriate options in kdump.conf
echo "fence_kdump_nodes $nodes" >> ${kdump_cfg_file}
echo "fence_kdump_nodes $nodes" >> "${kdump_cfg_file}"
args=$(get_pcs_fence_kdump_args)
if [[ -n "$args" ]]; then
echo "fence_kdump_args $args" >> ${kdump_cfg_file}
echo "fence_kdump_args $args" >> "${kdump_cfg_file}"
fi
else
@ -977,12 +978,12 @@ kdump_configure_fence_kdump () {
# setup network for each node
for node in ${nodes}; do
kdump_install_net $node
kdump_install_net "$node"
done
dracut_install /etc/hosts
dracut_install /etc/nsswitch.conf
dracut_install $FENCE_KDUMP_SEND
dracut_install "$FENCE_KDUMP_SEND"
}
# Install a random seed used to feed /dev/urandom
@ -992,32 +993,32 @@ kdump_install_random_seed() {
poolsize=$(</proc/sys/kernel/random/poolsize)
if [[ ! -d ${initdir}/var/lib/ ]]; then
mkdir -p ${initdir}/var/lib/
if [[ ! -d "${initdir}/var/lib/" ]]; then
mkdir -p "${initdir}/var/lib/"
fi
dd if=/dev/urandom of=${initdir}/var/lib/random-seed \
bs=$poolsize count=1 2> /dev/null
dd if=/dev/urandom of="${initdir}/var/lib/random-seed" \
bs="$poolsize" count=1 2> /dev/null
}
kdump_install_systemd_conf() {
# Kdump turns out to require longer default systemd mount timeout
# than 1st kernel(90s by default), we use default 300s for kdump.
grep -r "^[[:space:]]*DefaultTimeoutStartSec=" ${initdir}/etc/systemd/system.conf* &>/dev/null
grep -r "^[[:space:]]*DefaultTimeoutStartSec=" "${initdir}/etc/systemd/system.conf"* &>/dev/null
if [[ $? -ne 0 ]]; then
mkdir -p ${initdir}/etc/systemd/system.conf.d
echo "[Manager]" > ${initdir}/etc/systemd/system.conf.d/kdump.conf
echo "DefaultTimeoutStartSec=300s" >> ${initdir}/etc/systemd/system.conf.d/kdump.conf
mkdir -p "${initdir}/etc/systemd/system.conf.d"
echo "[Manager]" > "${initdir}/etc/systemd/system.conf.d/kdump.conf"
echo "DefaultTimeoutStartSec=300s" >> "${initdir}/etc/systemd/system.conf.d/kdump.conf"
fi
# Forward logs to console directly, and don't read Kmsg, this avoids
# unneccessary memory consumption and make console output more useful.
# Only do so for non fadump image.
mkdir -p ${initdir}/etc/systemd/journald.conf.d
echo "[Journal]" > ${initdir}/etc/systemd/journald.conf.d/kdump.conf
echo "Storage=volatile" >> ${initdir}/etc/systemd/journald.conf.d/kdump.conf
echo "ReadKMsg=no" >> ${initdir}/etc/systemd/journald.conf.d/kdump.conf
echo "ForwardToConsole=yes" >> ${initdir}/etc/systemd/journald.conf.d/kdump.conf
mkdir -p "${initdir}/etc/systemd/journald.conf.d"
echo "[Journal]" > "${initdir}/etc/systemd/journald.conf.d/kdump.conf"
echo "Storage=volatile" >> "${initdir}/etc/systemd/journald.conf.d/kdump.conf"
echo "ReadKMsg=no" >> "${initdir}/etc/systemd/journald.conf.d/kdump.conf"
echo "ForwardToConsole=yes" >> "${initdir}/etc/systemd/journald.conf.d/kdump.conf"
}
install() {
@ -1030,7 +1031,7 @@ install() {
fi
dracut_install -o /etc/adjtime /etc/localtime
inst "$moddir/monitor_dd_progress" "/kdumpscripts/monitor_dd_progress"
chmod +x ${initdir}/kdumpscripts/monitor_dd_progress
chmod +x "${initdir}/kdumpscripts/monitor_dd_progress"
inst "/bin/dd" "/bin/dd"
inst "/bin/tail" "/bin/tail"
inst "/bin/date" "/bin/date"
@ -1076,7 +1077,7 @@ install() {
# actually does nothing.
sed -i -e \
's/\(^[[:space:]]*reserved_memory[[:space:]]*=\)[[:space:]]*[[:digit:]]*/\1 1024/' \
${initdir}/etc/lvm/lvm.conf &>/dev/null
"${initdir}/etc/lvm/lvm.conf" &>/dev/null
# Save more memory by dropping switch root capability
dracut_no_switch_root

104
kdumpctl
View File

@ -78,11 +78,11 @@ save_core()
{
coredir="/var/crash/$(date +"%Y-%m-%d-%H:%M")"
mkdir -p $coredir
mkdir -p "$coredir"
ddebug "cp --sparse=always /proc/vmcore $coredir/vmcore-incomplete"
cp --sparse=always /proc/vmcore $coredir/vmcore-incomplete
cp --sparse=always /proc/vmcore "$coredir/vmcore-incomplete"
if [[ $? == 0 ]]; then
mv $coredir/vmcore-incomplete $coredir/vmcore
mv "$coredir/vmcore-incomplete" "$coredir/vmcore"
dinfo "saved a vmcore to $coredir"
else
derror "failed to save a vmcore to $coredir"
@ -93,9 +93,9 @@ save_core()
# https://fedorahosted.org/abrt/
if [[ -x /usr/bin/dumpoops ]]; then
ddebug "makedumpfile --dump-dmesg $coredir/vmcore $coredir/dmesg"
makedumpfile --dump-dmesg $coredir/vmcore $coredir/dmesg >/dev/null 2>&1
makedumpfile --dump-dmesg "$coredir/vmcore" "$coredir/dmesg" >/dev/null 2>&1
ddebug "dumpoops -d $coredir/dmesg"
dumpoops -d $coredir/dmesg >/dev/null 2>&1
dumpoops -d "$coredir/dmesg" >/dev/null 2>&1
if [[ $? == 0 ]]; then
dinfo "kernel oops has been collected by abrt tool"
fi
@ -121,7 +121,7 @@ check_earlykdump_is_enabled()
rebuild_kdump_initrd()
{
ddebug "rebuild kdump initrd: $MKDUMPRD $TARGET_INITRD $KDUMP_KERNELVER"
$MKDUMPRD $TARGET_INITRD $KDUMP_KERNELVER
$MKDUMPRD "$TARGET_INITRD" "$KDUMP_KERNELVER"
if [[ $? != 0 ]]; then
derror "mkdumprd: failed to make kdump initrd"
return 1
@ -136,8 +136,8 @@ rebuild_kdump_initrd()
rebuild_initrd()
{
if [[ ! -w $(dirname $TARGET_INITRD) ]];then
derror "$(dirname $TARGET_INITRD) does not have write permission. Cannot rebuild $TARGET_INITRD"
if [[ ! -w $(dirname "$TARGET_INITRD") ]];then
derror "$(dirname "$TARGET_INITRD") does not have write permission. Cannot rebuild $TARGET_INITRD"
return 1
fi
@ -183,11 +183,11 @@ backup_default_initrd()
if [[ ! -e $DEFAULT_INITRD_BAK ]]; then
dinfo "Backing up $DEFAULT_INITRD before rebuild."
# save checksum to verify before restoring
sha1sum $DEFAULT_INITRD > $INITRD_CHECKSUM_LOCATION
cp $DEFAULT_INITRD $DEFAULT_INITRD_BAK
sha1sum "$DEFAULT_INITRD" > "$INITRD_CHECKSUM_LOCATION"
cp "$DEFAULT_INITRD" "$DEFAULT_INITRD_BAK"
if [[ $? -ne 0 ]]; then
dwarn "WARNING: failed to backup $DEFAULT_INITRD."
rm -f $DEFAULT_INITRD_BAK
rm -f "$DEFAULT_INITRD_BAK"
fi
fi
}
@ -210,7 +210,7 @@ restore_default_initrd()
dwarn "WARNING: checksum mismatch! Can't restore original initrd.."
else
rm -f $INITRD_CHECKSUM_LOCATION
mv $DEFAULT_INITRD_BAK $DEFAULT_INITRD
mv "$DEFAULT_INITRD_BAK" "$DEFAULT_INITRD"
if [[ $? -eq 0 ]]; then
derror "Restoring original initrd as fadump mode is disabled."
sync
@ -226,7 +226,7 @@ check_config()
case "$config_opt" in
dracut_args)
if [[ $config_val == *--mount* ]]; then
if [[ $(echo $config_val | grep -o "\-\-mount" | wc -l) -ne 1 ]]; then
if [[ $(echo "$config_val" | grep -o "\-\-mount" | wc -l) -ne 1 ]]; then
derror "Multiple mount targets specified in one \"dracut_args\"."
return 1
fi
@ -297,13 +297,13 @@ get_pcs_cluster_modified_files()
fi
if [[ -f $FENCE_KDUMP_CONFIG_FILE ]]; then
time_stamp=$(stat -c "%Y" $FENCE_KDUMP_CONFIG_FILE)
time_stamp=$(stat -c "%Y" "$FENCE_KDUMP_CONFIG_FILE")
if [[ "$time_stamp" -gt "$image_time" ]]; then
modified_files="$modified_files $FENCE_KDUMP_CONFIG_FILE"
fi
fi
echo $modified_files
echo "$modified_files"
}
setup_initrd()
@ -314,7 +314,7 @@ setup_initrd()
return 1
fi
DEFAULT_INITRD_BAK="$KDUMP_BOOTDIR/.$(basename $DEFAULT_INITRD).default"
DEFAULT_INITRD_BAK="$KDUMP_BOOTDIR/.$(basename "$DEFAULT_INITRD").default"
if [[ $DEFAULT_DUMP_MODE == "fadump" ]]; then
TARGET_INITRD="$DEFAULT_INITRD"
@ -357,7 +357,7 @@ check_files_modified()
fi
HOOKS="$HOOKS $POST_FILES $PRE_FILES"
CORE_COLLECTOR=$(kdump_get_conf_val core_collector | awk '{print $1}')
CORE_COLLECTOR=$(type -P $CORE_COLLECTOR)
CORE_COLLECTOR=$(type -P "$CORE_COLLECTOR")
# POST_FILES and PRE_FILES are already checked against executable, need not to check again.
EXTRA_BINS="$EXTRA_BINS $CHECK_FILES"
CHECK_FILES=$(kdump_get_conf_val extra_bins)
@ -375,8 +375,8 @@ check_files_modified()
_module_file="$(modinfo --set-version "$KDUMP_KERNELVER" --filename "$_module" 2>/dev/null)"
if [[ $? -eq 0 ]]; then
files="$files $_module_file"
for _dep_modules in $(modinfo -F depends $_module | tr ',' ' '); do
files="$files $(modinfo --set-version "$KDUMP_KERNELVER" --filename $_dep_modules 2>/dev/null)"
for _dep_modules in $(modinfo -F depends "$_module" | tr ',' ' '); do
files="$files $(modinfo --set-version "$KDUMP_KERNELVER" --filename "$_dep_modules" 2>/dev/null)"
done
else
# If it's not a module nor builtin, give an error
@ -394,13 +394,13 @@ check_files_modified()
for file in $files; do
if [[ -e "$file" ]]; then
time_stamp=$(stat -c "%Y" $file)
time_stamp=$(stat -c "%Y" "$file")
if [[ "$time_stamp" -gt "$image_time" ]]; then
modified_files="$modified_files $file"
fi
if [[ -L "$file" ]]; then
file=$(readlink -m $file)
time_stamp=$(stat -c "%Y" $file)
file=$(readlink -m "$file")
time_stamp=$(stat -c "%Y" "$file")
if [[ "$time_stamp" -gt "$image_time" ]]; then
modified_files="$modified_files $file"
fi
@ -453,8 +453,8 @@ check_drivers_modified()
ddebug "Modules included in old initramfs: '$_old_drivers'"
for _driver in $_new_drivers; do
# Skip deprecated/invalid driver name or built-in module
_module_name=$(modinfo --set-version "$KDUMP_KERNELVER" -F name $_driver 2>/dev/null)
_module_filename=$(modinfo --set-version "$KDUMP_KERNELVER" -n $_driver 2>/dev/null)
_module_name=$(modinfo --set-version "$KDUMP_KERNELVER" -F name "$_driver" 2>/dev/null)
_module_filename=$(modinfo --set-version "$KDUMP_KERNELVER" -n "$_driver" 2>/dev/null)
if [[ $? -ne 0 ]] || [[ -z "$_module_name" ]] || [[ "$_module_filename" = *"(builtin)"* ]]; then
continue
fi
@ -483,21 +483,21 @@ check_fs_modified()
fi
_target=$(get_block_dump_target)
_new_fstype=$(get_fs_type_from_target $_target)
_new_fstype=$(get_fs_type_from_target "$_target")
if [[ -z "$_target" ]] || [[ -z "$_new_fstype" ]];then
derror "Dump target is invalid"
return 2
fi
ddebug "_target=$_target _new_fstype=$_new_fstype"
_new_dev=$(kdump_get_persistent_dev $_target)
_new_dev=$(kdump_get_persistent_dev "$_target")
if [[ -z "$_new_dev" ]]; then
perror "Get persistent device name failed"
return 2
fi
_new_mntpoint="$(get_kdump_mntpoint_from_target $_target)"
_dracut_args=$(lsinitrd $TARGET_INITRD -f usr/lib/dracut/build-parameter.txt)
_new_mntpoint="$(get_kdump_mntpoint_from_target "$_target")"
_dracut_args=$(lsinitrd "$TARGET_INITRD" -f usr/lib/dracut/build-parameter.txt)
if [[ -z "$_dracut_args" ]];then
dwarn "Warning: No dracut arguments found in initrd"
return 0
@ -505,13 +505,14 @@ check_fs_modified()
# if --mount argument present then match old and new target, mount
# point and file system. If any of them mismatches then rebuild
echo $_dracut_args | grep -q "\-\-mount"
echo "$_dracut_args" | grep -q "\-\-mount"
if [[ $? -eq 0 ]];then
set -- $(echo $_dracut_args | awk -F "--mount '" '{print $2}' | cut -d' ' -f1,2,3)
# shellcheck disable=SC2046
set -- $(echo "$_dracut_args" | awk -F "--mount '" '{print $2}' | cut -d' ' -f1,2,3)
_old_dev=$1
_old_mntpoint=$2
_old_fstype=$3
[[ $_new_dev = $_old_dev && $_new_mntpoint = $_old_mntpoint && $_new_fstype = $_old_fstype ]] && return 0
[[ $_new_dev = "$_old_dev" && $_new_mntpoint = "$_old_mntpoint" && $_new_fstype = "$_old_fstype" ]] && return 0
# otherwise rebuild if target device is not a root device
else
[[ "$_target" = "$(get_root_fs_device)" ]] && return 0
@ -590,7 +591,7 @@ check_rebuild()
#check to see if dependent files has been modified
#since last build of the image file
if [[ -f $TARGET_INITRD ]]; then
image_time=$(stat -c "%Y" $TARGET_INITRD 2>/dev/null)
image_time=$(stat -c "%Y" "$TARGET_INITRD" 2>/dev/null)
#in case of fadump mode, check whether the default/target
#initrd is already built with dump capture capability
@ -649,7 +650,7 @@ function remove_kdump_kernel_key()
return
fi
keyctl unlink $KDUMP_KEY_ID %:.ima
keyctl unlink "$KDUMP_KEY_ID" %:.ima
}
# Load the kdump kernel specified in /etc/sysconfig/kdump
@ -682,9 +683,10 @@ load_kdump()
PS4='+ $(date "+%Y-%m-%d %H:%M:%S") ${BASH_SOURCE}@${LINENO}: '
set -x
# shellcheck disable=SC2086
$KEXEC $KEXEC_ARGS $standard_kexec_args \
--command-line="$KDUMP_COMMANDLINE" \
--initrd=$TARGET_INITRD $KDUMP_KERNEL
--initrd="$TARGET_INITRD" "$KDUMP_KERNEL"
ret=$?
set +x
@ -709,7 +711,7 @@ check_ssh_config()
# remove inline comments after the end of a directive.
if [[ -f "$config_val" ]]; then
# canonicalize the path
SSH_KEY_LOCATION=$(/usr/bin/readlink -m $config_val)
SSH_KEY_LOCATION=$(/usr/bin/readlink -m "$config_val")
else
dwarn "WARNING: '$config_val' doesn't exist, using default value '$SSH_KEY_LOCATION'"
fi
@ -726,7 +728,7 @@ check_ssh_config()
done <<< "$(kdump_read_conf)"
#make sure they've configured kdump.conf for ssh dumps
local SSH_TARGET=$(echo -n $DUMP_TARGET | sed -n '/.*@/p')
local SSH_TARGET=$(echo -n "$DUMP_TARGET" | sed -n '/.*@/p')
if [[ -z "$SSH_TARGET" ]]; then
return 1
fi
@ -746,7 +748,7 @@ check_and_wait_network_ready()
local errmsg
while true; do
errmsg=$(ssh -i $SSH_KEY_LOCATION -o BatchMode=yes $DUMP_TARGET mkdir -p $SAVE_PATH 2>&1)
errmsg=$(ssh -i "$SSH_KEY_LOCATION" -o BatchMode=yes "$DUMP_TARGET" mkdir -p "$SAVE_PATH" 2>&1)
retval=$?
# ssh exits with the exit status of the remote command or with 255 if an error occurred
@ -759,7 +761,7 @@ check_and_wait_network_ready()
# if server removes the authorized_keys or, no /root/.ssh/kdump_id_rsa
ddebug "$errmsg"
echo $errmsg | grep -q "Permission denied\|No such file or directory\|Host key verification failed"
echo "$errmsg" | grep -q "Permission denied\|No such file or directory\|Host key verification failed"
if [[ $? -eq 0 ]]; then
derror "Could not create $DUMP_TARGET:$SAVE_PATH, you probably need to run \"kdumpctl propagate\""
return 1
@ -808,16 +810,16 @@ propagate_ssh_key()
dinfo "Using existing keys..."
else
dinfo "Generating new ssh keys... "
/usr/bin/ssh-keygen -t rsa -f $KEYFILE -N "" 2>&1 > /dev/null
/usr/bin/ssh-keygen -t rsa -f "$KEYFILE" -N "" 2>&1 > /dev/null
dinfo "done."
fi
#now find the target ssh user and server to contact.
SSH_USER=$(echo $DUMP_TARGET | cut -d\ -f2 | cut -d@ -f1)
SSH_SERVER=$(echo $DUMP_TARGET | sed -e's/\(.*@\)\(.*$\)/\2/')
SSH_USER=$(echo "$DUMP_TARGET" | cut -d@ -f1)
SSH_SERVER=$(echo "$DUMP_TARGET" | sed -e's/\(.*@\)\(.*$\)/\2/')
#now send the found key to the found server
ssh-copy-id -i $KEYFILE $SSH_USER@$SSH_SERVER
ssh-copy-id -i "$KEYFILE" "$SSH_USER@$SSH_SERVER"
RET=$?
if [[ $RET == 0 ]]; then
dinfo "$KEYFILE has been added to ~$SSH_USER/.ssh/authorized_keys on $SSH_SERVER"
@ -836,7 +838,7 @@ show_reserved_mem()
mem=$(</sys/kernel/kexec_crash_size)
mem_mb=$((mem / 1024 / 1024))
dinfo "Reserved "$mem_mb"MB memory for crash kernel"
dinfo "Reserved ${mem_mb}MB memory for crash kernel"
}
check_current_fadump_status()
@ -869,8 +871,8 @@ save_raw()
derror "raw partition $raw_target not found"
return 1
}
check_fs=$(lsblk --nodeps -npo FSTYPE $raw_target)
if [[ $(echo $check_fs | wc -w) -ne 0 ]]; then
check_fs=$(lsblk --nodeps -npo FSTYPE "$raw_target")
if [[ $(echo "$check_fs" | wc -w) -ne 0 ]]; then
dwarn "Warning: Detected '$check_fs' signature on $raw_target, data loss is expected."
return 0
fi
@ -886,11 +888,11 @@ save_raw()
derror "failed to create $coredir"
return 1
}
if makedumpfile -R $coredir/vmcore <$raw_target >/dev/null 2>&1; then
if makedumpfile -R "$coredir/vmcore" < "$raw_target" >/dev/null 2>&1; then
# dump found
dinfo "Dump saved to $coredir/vmcore"
# wipe makedumpfile header
dd if=/dev/zero of=$raw_target bs=1b count=1 2>/dev/null
dd if=/dev/zero of="$raw_target" bs=1b count=1 2>/dev/null
else
rm -rf "$coredir"
fi
@ -904,7 +906,7 @@ local_fs_dump_target()
_target=$(grep -E "^ext[234]|^xfs|^btrfs|^minix" /etc/kdump.conf)
if [[ $? -eq 0 ]]; then
echo $_target|awk '{print $2}'
echo "$_target" | awk '{print $2}'
fi
}
@ -919,7 +921,7 @@ path_to_be_relabeled()
_target=$(local_fs_dump_target)
if [[ -n "$_target" ]]; then
_mnt=$(get_mntpoint_from_target $_target)
_mnt=$(get_mntpoint_from_target "$_target")
if ! is_mounted "$_mnt"; then
return
fi
@ -930,9 +932,9 @@ path_to_be_relabeled()
_path=$(get_save_path)
# if $_path is masked by other mount, we will not relabel it.
_rmnt=$(df $_mnt/$_path 2>/dev/null | tail -1 | awk '{ print $NF }')
_rmnt=$(df "$_mnt/$_path" 2>/dev/null | tail -1 | awk '{ print $NF }')
if [[ "$_rmnt" == "$_mnt" ]]; then
echo $_mnt/$_path
echo "$_mnt/$_path"
fi
}

View File

@ -60,9 +60,9 @@ add_dracut_sshkey() {
to_mount() {
local _target=$1 _fstype=$2 _options=$3 _sed_cmd _new_mntpoint _pdev
_new_mntpoint=$(get_kdump_mntpoint_from_target $_target)
_fstype="${_fstype:-$(get_fs_type_from_target $_target)}"
_options="${_options:-$(get_mntopt_from_target $_target)}"
_new_mntpoint=$(get_kdump_mntpoint_from_target "$_target")
_fstype="${_fstype:-$(get_fs_type_from_target "$_target")}"
_options="${_options:-$(get_mntopt_from_target "$_target")}"
_options="${_options:-defaults}"
if [[ "$_fstype" == "nfs"* ]]; then
@ -72,8 +72,8 @@ to_mount() {
_sed_cmd+='s/,clientaddr=[^,]*//;'
else
# for non-nfs _target converting to use udev persistent name
_pdev="$(kdump_get_persistent_dev $_target)"
if [[ -z "$_pdev" ]]; then
_pdev="$(kdump_get_persistent_dev "$_target")"
if [[ -z $_pdev ]]; then
return 1
fi
fi
@ -114,19 +114,19 @@ mkdir_save_path_ssh()
{
local _opt _dir
_opt=(-i "$SSH_KEY_LOCATION" -o BatchMode=yes -o StrictHostKeyChecking=yes)
ssh -qn "${_opt[@]}" $1 mkdir -p $SAVE_PATH 2>&1 > /dev/null
ssh -qn "${_opt[@]}" "$1" mkdir -p "$SAVE_PATH" 2>&1 > /dev/null
_ret=$?
if [[ $_ret -ne 0 ]]; then
perror_exit "mkdir failed on $1:$SAVE_PATH"
fi
#check whether user has write permission on $1:$SAVE_PATH
_dir=$(ssh -qn "${_opt[@]}" $1 mktemp -dqp $SAVE_PATH 2>/dev/null)
_dir=$(ssh -qn "${_opt[@]}" "$1" mktemp -dqp "$SAVE_PATH" 2>/dev/null)
_ret=$?
if [[ $_ret -ne 0 ]]; then
perror_exit "Could not create temporary directory on $1:$SAVE_PATH. Make sure user has write permission on destination"
fi
ssh -qn "${_opt[@]}" $1 rmdir $_dir
ssh -qn "${_opt[@]}" "$1" rmdir "$_dir"
return 0
}
@ -168,7 +168,7 @@ check_size() {
perror_exit "Check dump target size failed"
fi
if [[ $avail -lt $memtotal ]]; then
if [[ "$avail" -lt "$memtotal" ]]; then
dwarn "Warning: There might not be enough space to save a vmcore."
dwarn " The size of $2 should be greater than $memtotal kilo bytes."
fi
@ -206,9 +206,9 @@ mount_failure()
check_user_configured_target()
{
local _target=$1 _cfg_fs_type=$2 _mounted
local _mnt=$(get_mntpoint_from_target $_target)
local _opt=$(get_mntopt_from_target $_target)
local _fstype=$(get_fs_type_from_target $_target)
local _mnt=$(get_mntpoint_from_target "$_target")
local _opt=$(get_mntopt_from_target "$_target")
local _fstype=$(get_fs_type_from_target "$_target")
if [[ -n "$_fstype" ]]; then
# In case of nfs4, nfs should be used instead, nfs* options is deprecated in kdump.conf
@ -227,7 +227,7 @@ check_user_configured_target()
if [[ -n "$_mnt" ]]; then
if ! is_mounted "$_mnt"; then
if [[ $_opt = *",noauto"* ]]; then
mount $_mnt
mount "$_mnt"
[[ $? -ne 0 ]] && mount_failure "$_target" "$_mnt" "$_fstype"
_mounted=$_mnt
else
@ -236,8 +236,8 @@ check_user_configured_target()
fi
else
_mnt=$MKDUMPRD_TMPMNT
mkdir -p $_mnt
mount $_target $_mnt -t $_fstype -o defaults
mkdir -p "$_mnt"
mount "$_target" "$_mnt" -t "$_fstype" -o defaults
[[ $? -ne 0 ]] && mount_failure "$_target" "" "$_fstype"
_mounted=$_mnt
fi
@ -251,7 +251,7 @@ check_user_configured_target()
# Unmount it early, if function is interrupted and didn't reach here, the shell trap will clear it up anyway
if [[ -n "$_mounted" ]]; then
umount -f -- $_mounted
umount -f -- "$_mounted"
fi
}
@ -276,13 +276,14 @@ verify_core_collector() {
_params="$_params vmcore dumpfile"
fi
# shellcheck disable=SC2086
if ! $_cmd --check-params $_params; then
perror_exit "makedumpfile parameter check failed."
fi
}
add_mount() {
local _mnt=$(to_mount $@)
local _mnt=$(to_mount "$@")
if [[ $? -ne 0 ]]; then
exit 1
@ -299,15 +300,15 @@ handle_default_dump_target()
is_user_configured_dump_target && return
check_save_path_fs $SAVE_PATH
check_save_path_fs "$SAVE_PATH"
_save_path=$(get_bind_mount_source $SAVE_PATH)
_target=$(get_target_from_path $_save_path)
_mntpoint=$(get_mntpoint_from_target $_target)
_save_path=$(get_bind_mount_source "$SAVE_PATH")
_target=$(get_target_from_path "$_save_path")
_mntpoint=$(get_mntpoint_from_target "$_target")
SAVE_PATH=${_save_path##"$_mntpoint"}
add_mount "$_target"
check_size fs $_target
check_size fs "$_target"
}
# $1: function name
@ -317,8 +318,8 @@ for_each_block_target()
for dev in $(get_kdump_targets); do
[[ -b "$dev" ]] || continue
majmin=$(get_maj_min $dev)
check_block_and_slaves $1 $majmin && return 1
majmin=$(get_maj_min "$dev")
check_block_and_slaves "$1" "$majmin" && return 1
done
return 0
@ -328,14 +329,14 @@ for_each_block_target()
#return false if unresettable.
is_unresettable()
{
local path="/sys/$(udevadm info --query=all --path=/sys/dev/block/$1 | awk '/^P:/ {print $2}' | sed -e 's/\(cciss[0-9]\+\/\).*/\1/g' -e 's/\/block\/.*$//')/resettable"
local path="/sys/$(udevadm info --query=all --path="/sys/dev/block/$1" | awk '/^P:/ {print $2}' | sed -e 's/\(cciss[0-9]\+\/\).*/\1/g' -e 's/\/block\/.*$//')/resettable"
local resettable=1
if [[ -f "$path" ]]
then
resettable="$(<"$path")"
[[ $resettable -eq 0 ]] && [[ "$OVERRIDE_RESETTABLE" -eq 0 ]] && {
local device=$(udevadm info --query=all --path=/sys/dev/block/$1 | awk -F= '/DEVNAME/{print $2}')
local device=$(udevadm info --query=all --path="/sys/dev/block/$1" | awk -F= '/DEVNAME/{print $2}')
derror "Error: Can not save vmcore because device $device is unresettable"
return 0
}
@ -387,7 +388,7 @@ fi
keyfile=$(kdump_get_conf_val sshkey)
if [[ -f "$keyfile" ]]; then
# canonicalize the path
SSH_KEY_LOCATION=$(/usr/bin/readlink -m $keyfile)
SSH_KEY_LOCATION=$(/usr/bin/readlink -m "$keyfile")
fi
while read -r config_opt config_val;
@ -403,21 +404,21 @@ do
;;
raw)
# checking raw disk writable
dd if=$config_val count=1 of=/dev/null > /dev/null 2>&1 || {
dd if="$config_val" count=1 of=/dev/null > /dev/null 2>&1 || {
perror_exit "Bad raw disk $config_val"
}
_praw=$(persistent_policy="by-id" kdump_get_persistent_dev $config_val)
if [[ -z "$_praw" ]]; then
_praw=$(persistent_policy="by-id" kdump_get_persistent_dev "$config_val")
if [[ -z $_praw ]]; then
exit 1
fi
add_dracut_arg "--device" "$_praw"
check_size raw $config_val
check_size raw "$config_val"
;;
ssh)
if strstr "$config_val" "@";
then
mkdir_save_path_ssh $config_val
check_size ssh $config_val
mkdir_save_path_ssh "$config_val"
check_size ssh "$config_val"
add_dracut_sshkey "$SSH_KEY_LOCATION"
else
perror_exit "Bad ssh dump target $config_val"
@ -451,7 +452,7 @@ fi
if ! is_fadump_capable; then
# The 2nd rootfs mount stays behind the normal dump target mount,
# so it doesn't affect the logic of check_dump_fs_modified().
is_dump_to_rootfs && add_mount "$(to_dev_name $(get_root_fs_device))"
is_dump_to_rootfs && add_mount "$(to_dev_name "$(get_root_fs_device)")"
add_dracut_arg "--no-hostonly-default-device"
fi