# utility functions for ctdb event scripts
-if [ -z "$CTDB_BASE" ] ; then
- echo 'CTDB_BASE unset in CTDB functions file'
- exit 1
+if [ -z "$CTDB_BASE" ]; then
+ echo 'CTDB_BASE unset in CTDB functions file'
+ exit 1
fi
export CTDB_BASE
# Only (and always) override these variables in test code
-if [ -z "$CTDB_SCRIPT_VARDIR" ] ; then
- CTDB_SCRIPT_VARDIR="/usr/local/var/lib/ctdb/scripts"
+if [ -z "$CTDB_SCRIPT_VARDIR" ]; then
+ CTDB_SCRIPT_VARDIR="/usr/local/var/lib/ctdb/scripts"
fi
-if [ -z "$CTDB_SYS_ETCDIR" ] ; then
- CTDB_SYS_ETCDIR="/etc"
+if [ -z "$CTDB_SYS_ETCDIR" ]; then
+ CTDB_SYS_ETCDIR="/etc"
fi
-if [ -z "$CTDB_HELPER_BINDIR" ] ; then
- CTDB_HELPER_BINDIR="/usr/local/libexec/ctdb"
+if [ -z "$CTDB_HELPER_BINDIR" ]; then
+ CTDB_HELPER_BINDIR="/usr/local/libexec/ctdb"
fi
#######################################
# pull in a system config file, if any
-load_system_config ()
+load_system_config()
{
- for _i ; do
+ for _i; do
if [ -f "${CTDB_SYS_ETCDIR}/sysconfig/${_i}" ]; then
. "${CTDB_SYS_ETCDIR}/sysconfig/${_i}"
# load_script_options [ component script ]
# script is an event script name relative to a component
# component is currently ignored
-load_script_options ()
+load_script_options()
{
- if [ $# -eq 2 ] ; then
+ if [ $# -eq 2 ]; then
_script="$2"
- elif [ $# -eq 0 ] ; then
+ elif [ $# -eq 0 ]; then
_script=""
else
die "usage: load_script_options [ component script ]"
_options="${CTDB_BASE}/script.options"
- if [ -r "$_options" ] ; then
+ if [ -r "$_options" ]; then
. "$_options"
fi
- if [ -n "$_script" ] ; then
+ if [ -n "$_script" ]; then
_s="${CTDB_BASE}/events/legacy/${_script}"
else
_s="${0%.script}"
fi
_options="${_s}.options"
- if [ -r "$_options" ] ; then
+ if [ -r "$_options" ]; then
. "$_options"
fi
}
##############################################################
-die ()
+die()
{
- _msg="$1"
- _rc="${2:-1}"
+ _msg="$1"
+ _rc="${2:-1}"
- echo "$_msg" >&2
- exit "$_rc"
+ echo "$_msg" >&2
+ exit "$_rc"
}
# Log given message or stdin to either syslog or a CTDB log file
# $1 is the tag passed to logger if syslog is in use.
-script_log ()
-{
- _tag="$1" ; shift
-
- case "$CTDB_LOGGING" in
- file:*|"")
- if [ -n "$CTDB_LOGGING" ] ; then
- _file="${CTDB_LOGGING#file:}"
- else
- _file="/usr/local/var/log/log.ctdb"
- fi
- {
- if [ -n "$*" ] ; then
- echo "$*"
+script_log()
+{
+ _tag="$1"
+ shift
+
+ case "$CTDB_LOGGING" in
+ file:* | "")
+ if [ -n "$CTDB_LOGGING" ]; then
+ _file="${CTDB_LOGGING#file:}"
else
- cat
+ _file="/usr/local/var/log/log.ctdb"
fi
- } >>"$_file"
- ;;
+ {
+ if [ -n "$*" ]; then
+ echo "$*"
+ else
+ cat
+ fi
+ } >>"$_file"
+ ;;
*)
- # Handle all syslog:* variants here too. There's no tool to do
- # the lossy things, so just use logger.
- logger -t "ctdbd: ${_tag}" "$@"
- ;;
- esac
+ # Handle all syslog:* variants here too. There's no tool to do
+ # the lossy things, so just use logger.
+ logger -t "ctdbd: ${_tag}" "$@"
+ ;;
+ esac
}
# When things are run in the background in an eventscript then logging
# output might get lost. This is the "solution". :-)
-background_with_logging ()
+background_with_logging()
{
- (
- "$@" 2>&1 </dev/null |
- script_log "${script_name}&"
- )&
+ (
+ "$@" 2>&1 </dev/null |
+ script_log "${script_name}&"
+ ) &
- return 0
+ return 0
}
##############################################################
# check number of args for different events
-ctdb_check_args ()
+ctdb_check_args()
{
- case "$1" in
- takeip|releaseip)
- if [ $# != 4 ]; then
- echo "ERROR: must supply interface, IP and maskbits"
- exit 1
- fi
- ;;
+ case "$1" in
+ takeip | releaseip)
+ if [ $# != 4 ]; then
+ echo "ERROR: must supply interface, IP and maskbits"
+ exit 1
+ fi
+ ;;
updateip)
- if [ $# != 5 ]; then
- echo "ERROR: must supply old interface, new interface, IP and maskbits"
- exit 1
- fi
- ;;
- esac
+ if [ $# != 5 ]; then
+ echo "ERROR: must supply old interface, new interface, IP and maskbits"
+ exit 1
+ fi
+ ;;
+ esac
}
##############################################################
detect_init_style()
{
# only do detection if not already set:
- if [ -n "$CTDB_INIT_STYLE" ] ; then
+ if [ -n "$CTDB_INIT_STYLE" ]; then
return
fi
# simulate /sbin/service on platforms that don't have it
# _service() makes it easier to hook the service() function for
# testing.
-_service ()
+_service()
{
- _service_name="$1"
- _op="$2"
-
- # do nothing, when no service was specified
- [ -z "$_service_name" ] && return
-
- if [ -x /sbin/service ]; then
- $_nice /sbin/service "$_service_name" "$_op"
- elif [ -x /usr/sbin/service ]; then
- $_nice /usr/sbin/service "$_service_name" "$_op"
- elif [ -x /bin/systemctl ]; then
- $_nice /bin/systemctl "$_op" "$_service_name"
- elif [ -x "${CTDB_SYS_ETCDIR}/init.d/${_service_name}" ]; then
- $_nice "${CTDB_SYS_ETCDIR}/init.d/${_service_name}" "$_op"
- elif [ -x "${CTDB_SYS_ETCDIR}/rc.d/init.d/${_service_name}" ]; then
- $_nice "${CTDB_SYS_ETCDIR}/rc.d/init.d/${_service_name}" "$_op"
- fi
+ _service_name="$1"
+ _op="$2"
+
+ # do nothing, when no service was specified
+ [ -z "$_service_name" ] && return
+
+ if [ -x /sbin/service ]; then
+ $_nice /sbin/service "$_service_name" "$_op"
+ elif [ -x /usr/sbin/service ]; then
+ $_nice /usr/sbin/service "$_service_name" "$_op"
+ elif [ -x /bin/systemctl ]; then
+ $_nice /bin/systemctl "$_op" "$_service_name"
+ elif [ -x "${CTDB_SYS_ETCDIR}/init.d/${_service_name}" ]; then
+ $_nice "${CTDB_SYS_ETCDIR}/init.d/${_service_name}" "$_op"
+ elif [ -x "${CTDB_SYS_ETCDIR}/rc.d/init.d/${_service_name}" ]; then
+ $_nice "${CTDB_SYS_ETCDIR}/rc.d/init.d/${_service_name}" "$_op"
+ fi
}
service()
{
- _nice=""
- _service "$@"
+ _nice=""
+ _service "$@"
}
######################################################
# simulate /sbin/service (niced) on platforms that don't have it
nice_service()
{
- _nice="nice"
- _service "$@"
+ _nice="nice"
+ _service "$@"
}
######################################################
# Cached retrieval of PNN from local node. This never changes so why
# open a client connection to the server each time this is needed?
-ctdb_get_pnn ()
+ctdb_get_pnn()
{
- _pnn_file="${CTDB_SCRIPT_VARDIR}/my-pnn"
- if [ ! -f "$_pnn_file" ] ; then
- $CTDB pnn >"$_pnn_file"
- fi
+ _pnn_file="${CTDB_SCRIPT_VARDIR}/my-pnn"
+ if [ ! -f "$_pnn_file" ]; then
+ $CTDB pnn >"$_pnn_file"
+ fi
- cat "$_pnn_file"
+ cat "$_pnn_file"
}
# Cached retrieval of private IP address from local node. This never
# changes.
-ctdb_get_ip_address ()
+ctdb_get_ip_address()
{
- _ip_addr_file="${CTDB_SCRIPT_VARDIR}/my-ip-address"
- if [ ! -f "$_ip_addr_file" ] ; then
- $CTDB -X nodestatus |
- awk -F '|' 'NR == 2 { print $3 }' >"$_ip_addr_file"
- fi
+ _ip_addr_file="${CTDB_SCRIPT_VARDIR}/my-ip-address"
+ if [ ! -f "$_ip_addr_file" ]; then
+ $CTDB -X nodestatus |
+ awk -F '|' 'NR == 2 { print $3 }' >"$_ip_addr_file"
+ fi
- cat "$_ip_addr_file"
+ cat "$_ip_addr_file"
}
# Cached retrieval of database options for use by event scripts.
#
# If the variables are already set then they should not be overwritten
# - this should only happen during event script testing.
-ctdb_get_db_options ()
+ctdb_get_db_options()
{
_db_opts_file="${CTDB_SCRIPT_VARDIR}/db_options.cache"
- if [ ! -f "$_db_opts_file" ] ; then
+ if [ ! -f "$_db_opts_file" ]; then
{
ctdb_translate_option "database" \
- "volatile database directory" \
- "CTDB_DBDIR"
+ "volatile database directory" \
+ "CTDB_DBDIR"
ctdb_translate_option "database" \
- "persistent database directory" \
- "CTDB_DBDIR_PERSISTENT"
+ "persistent database directory" \
+ "CTDB_DBDIR_PERSISTENT"
ctdb_translate_option "database" \
- "state database directory" \
- "CTDB_DBDIR_STATE"
+ "state database directory" \
+ "CTDB_DBDIR_STATE"
} >"$_db_opts_file"
fi
. "$_db_opts_file"
}
-ctdb_translate_option ()
+ctdb_translate_option()
{
_section="$1"
_opt="$2"
_variable="$3"
# ctdb-config already prints an error if something goes wrong
- _t=$("${CTDB_HELPER_BINDIR}/ctdb-config" get "$_section" "$_opt") || \
+ _t=$("${CTDB_HELPER_BINDIR}/ctdb-config" get "$_section" "$_opt") ||
exit $?
echo "${_variable}=\"${_t}\""
}
# wrapper around /proc/ settings to allow them to be hooked
# for testing
# 1st arg is relative path under /proc/, 2nd arg is value to set
-set_proc ()
+set_proc()
{
- echo "$2" >"/proc/$1"
+ echo "$2" >"/proc/$1"
}
-set_proc_maybe ()
+set_proc_maybe()
{
- if [ -w "/proc/$1" ] ; then
- set_proc "$1" "$2"
- fi
+ if [ -w "/proc/$1" ]; then
+ set_proc "$1" "$2"
+ fi
}
######################################################
# wrapper around getting file contents from /proc/ to allow
# this to be hooked for testing
# 1st arg is relative path under /proc/
-get_proc ()
+get_proc()
{
- cat "/proc/$1"
+ cat "/proc/$1"
}
######################################################
# Print up to $_max kernel stack traces for processes named $_program
-program_stack_traces ()
+program_stack_traces()
{
- _prog="$1"
- _max="${2:-1}"
-
- _count=1
- for _pid in $(pidof "$_prog") ; do
- [ "$_count" -le "$_max" ] || break
-
- # Do this first to avoid racing with process exit
- _stack=$(get_proc "${_pid}/stack" 2>/dev/null)
- if [ -n "$_stack" ] ; then
- echo "Stack trace for ${_prog}[${_pid}]:"
- echo "$_stack"
- _count=$((_count + 1))
- fi
- done
+ _prog="$1"
+ _max="${2:-1}"
+
+ _count=1
+ for _pid in $(pidof "$_prog"); do
+ [ "$_count" -le "$_max" ] || break
+
+ # Do this first to avoid racing with process exit
+ _stack=$(get_proc "${_pid}/stack" 2>/dev/null)
+ if [ -n "$_stack" ]; then
+ echo "Stack trace for ${_prog}[${_pid}]:"
+ echo "$_stack"
+ _count=$((_count + 1))
+ fi
+ done
}
######################################################
# Ensure $service_name is set
-assert_service_name ()
+assert_service_name()
{
# service_name is set by the event script
# shellcheck disable=SC2154
######################################################
ctdb_check_directories_probe()
{
- while IFS="" read d ; do
- case "$d" in
- *%*)
- continue
- ;;
- *)
- [ -d "${d}/." ] || return 1
- esac
- done
+ while IFS="" read d; do
+ case "$d" in
+ *%*)
+ continue
+ ;;
+ *)
+ [ -d "${d}/." ] || return 1
+ ;;
+ esac
+ done
}
######################################################
######################################################
ctdb_check_directories()
{
- ctdb_check_directories_probe || {
- echo "ERROR: $service_name directory \"$d\" not available"
- exit 1
- }
+ ctdb_check_directories_probe || {
+ echo "ERROR: $service_name directory \"$d\" not available"
+ exit 1
+ }
}
######################################################
# using the "ctdb checktcpport" command.
ctdb_check_tcp_ports()
{
- if [ -z "$1" ] ; then
+ if [ -z "$1" ]; then
echo "INTERNAL ERROR: ctdb_check_tcp_ports - no ports specified"
exit 1
fi
- for _p ; do # process each function argument (port)
+ for _p; do # process each function argument (port)
_cmd="$CTDB checktcpport $_p"
_out=$($_cmd 2>&1)
_ret=$?
;;
*)
echo "unexpected error (${_ret}) running \"${_cmd}\""
- if [ -n "$_out" ] ; then
+ if [ -n "$_out" ]; then
echo "$_out"
fi
return $_ret
{
_sockpath="$1"
- if [ -z "$_sockpath" ] ; then
+ if [ -z "$_sockpath" ]; then
echo "ERROR: ctdb_check_unix_socket() requires socket path"
return 1
fi
_out=$(ss -l -x "src ${_sockpath}" | tail -n +2)
- if [ -z "$_out" ] ; then
+ if [ -z "$_out" ]; then
echo "ERROR: ${service_name} not listening on ${_sockpath}"
return 1
fi
################################################
# kill off any TCP connections with the given IP
################################################
-kill_tcp_connections ()
+kill_tcp_connections()
{
- _iface="$1"
- _ip="$2"
+ _iface="$1"
+ _ip="$2"
- _oneway=false
- if [ "$3" = "oneway" ] ; then
- _oneway=true
- fi
+ _oneway=false
+ if [ "$3" = "oneway" ]; then
+ _oneway=true
+ fi
- get_tcp_connections_for_ip "$_ip" | {
- _killcount=0
- _connections=""
- _nl="
+ get_tcp_connections_for_ip "$_ip" | {
+ _killcount=0
+ _connections=""
+ _nl="
"
- while read _dst _src; do
- _destport="${_dst##*:}"
- __oneway=$_oneway
- case $_destport in
- # we only do one-way killtcp for CIFS
- 139|445) __oneway=true ;;
- esac
-
- _connections="${_connections}${_nl}${_src} ${_dst}"
- if ! $__oneway ; then
- _connections="${_connections}${_nl}${_dst} ${_src}"
- fi
-
- _killcount=$((_killcount + 1))
- done
+ while read _dst _src; do
+ _destport="${_dst##*:}"
+ __oneway=$_oneway
+ case $_destport in
+ # we only do one-way killtcp for CIFS
+ 139 | 445) __oneway=true ;;
+ esac
+
+ _connections="${_connections}${_nl}${_src} ${_dst}"
+ if ! $__oneway; then
+ _connections="${_connections}${_nl}${_dst} ${_src}"
+ fi
- if [ $_killcount -eq 0 ] ; then
- return
- fi
+ _killcount=$((_killcount + 1))
+ done
- if [ -n "$CTDB_KILLTCP_DEBUGLEVEL" ]; then
- _debuglevel="$CTDB_KILLTCP_DEBUGLEVEL"
- else
- _debuglevel="$CTDB_DEBUGLEVEL"
- fi
- echo "$_connections" | \
- CTDB_DEBUGLEVEL="$_debuglevel" \
- "${CTDB_HELPER_BINDIR}/ctdb_killtcp" "$_iface" || {
- echo "Failed to kill TCP connections"
- return
- }
+ if [ $_killcount -eq 0 ]; then
+ return
+ fi
- _connections=$(get_tcp_connections_for_ip "$_ip")
- if [ -z "$_connections" ] ; then
- _remaining=0
- else
- _remaining=$(echo "$_connections" | wc -l)
- fi
+ if [ -n "$CTDB_KILLTCP_DEBUGLEVEL" ]; then
+ _debuglevel="$CTDB_KILLTCP_DEBUGLEVEL"
+ else
+ _debuglevel="$CTDB_DEBUGLEVEL"
+ fi
+ echo "$_connections" |
+ CTDB_DEBUGLEVEL="$_debuglevel" \
+ "${CTDB_HELPER_BINDIR}/ctdb_killtcp" "$_iface" || {
+ echo "Failed to kill TCP connections"
+ return
+ }
- _actually_killed=$((_killcount - _remaining))
+ _connections=$(get_tcp_connections_for_ip "$_ip")
+ if [ -z "$_connections" ]; then
+ _remaining=0
+ else
+ _remaining=$(echo "$_connections" | wc -l)
+ fi
- _t="${_actually_killed}/${_killcount}"
- echo "Killed ${_t} TCP connections to released IP $_ip"
+ _actually_killed=$((_killcount - _remaining))
- if [ -n "$_connections" ] ; then
- echo "Remaining connections:"
- echo "$_connections" | sed -e 's|^| |'
- fi
- }
+ _t="${_actually_killed}/${_killcount}"
+ echo "Killed ${_t} TCP connections to released IP $_ip"
+
+ if [ -n "$_connections" ]; then
+ echo "Remaining connections:"
+ echo "$_connections" | sed -e 's|^| |'
+ fi
+ }
}
##################################################################
# kill off the local end for any TCP connections with the given IP
##################################################################
-kill_tcp_connections_local_only ()
+kill_tcp_connections_local_only()
{
- kill_tcp_connections "$@" "oneway"
+ kill_tcp_connections "$@" "oneway"
}
##################################################################
# tickle any TCP connections with the given IP
##################################################################
-tickle_tcp_connections ()
+tickle_tcp_connections()
{
- _ip="$1"
+ _ip="$1"
- # Get connections, both directions
- _conns=$(get_tcp_connections_for_ip "$_ip" | \
- awk '{ print $1, $2 ; print $2, $1 }')
+ # Get connections, both directions
+ _conns=$(get_tcp_connections_for_ip "$_ip" |
+ awk '{ print $1, $2 ; print $2, $1 }')
- echo "$_conns" | awk '{ print "Tickle TCP connection", $1, $2 }'
- echo "$_conns" | ctdb tickle
+ echo "$_conns" | awk '{ print "Tickle TCP connection", $1, $2 }'
+ echo "$_conns" | ctdb tickle
}
-get_tcp_connections_for_ip ()
+get_tcp_connections_for_ip()
{
- _ip="$1"
+ _ip="$1"
- ss -tn state established "src [$_ip]" | awk 'NR > 1 {print $3, $4}'
+ ss -tn state established "src [$_ip]" | awk 'NR > 1 {print $3, $4}'
}
########################################################
-add_ip_to_iface ()
-{
- _iface=$1
- _ip=$2
- _maskbits=$3
-
- # Ensure interface is up
- ip link set "$_iface" up || \
- die "Failed to bringup interface $_iface"
-
- # Only need to define broadcast for IPv4
- case "$_ip" in
- *:*) _bcast="" ;;
- *) _bcast="brd +" ;;
- esac
-
- # Intentionally unquoted multi-word value here
- # shellcheck disable=SC2086
- ip addr add "$_ip/$_maskbits" $_bcast dev "$_iface" || {
- echo "Failed to add $_ip/$_maskbits on dev $_iface"
- return 1
- }
-
- # Wait 5 seconds for IPv6 addresses to stop being tentative...
- if [ -z "$_bcast" ] ; then
- for _x in $(seq 1 10) ; do
- ip addr show to "${_ip}/128" | grep -q "tentative" || break
- sleep 0.5
- done
+add_ip_to_iface()
+{
+ _iface=$1
+ _ip=$2
+ _maskbits=$3
+
+ # Ensure interface is up
+ ip link set "$_iface" up ||
+ die "Failed to bringup interface $_iface"
+
+ # Only need to define broadcast for IPv4
+ case "$_ip" in
+ *:*) _bcast="" ;;
+ *) _bcast="brd +" ;;
+ esac
- # If the address was a duplicate then it won't be on the
- # interface so flag an error.
- _t=$(ip addr show to "${_ip}/128")
- case "$_t" in
- "")
- echo "Failed to add $_ip/$_maskbits on dev $_iface"
- return 1
- ;;
- *tentative*|*dadfailed*)
+ # Intentionally unquoted multi-word value here
+ # shellcheck disable=SC2086
+ ip addr add "$_ip/$_maskbits" $_bcast dev "$_iface" || {
echo "Failed to add $_ip/$_maskbits on dev $_iface"
- ip addr del "$_ip/$_maskbits" dev "$_iface"
return 1
- ;;
- esac
- fi
+ }
+
+ # Wait 5 seconds for IPv6 addresses to stop being tentative...
+ if [ -z "$_bcast" ]; then
+ for _x in $(seq 1 10); do
+ ip addr show to "${_ip}/128" | grep -q "tentative" || break
+ sleep 0.5
+ done
+
+ # If the address was a duplicate then it won't be on the
+ # interface so flag an error.
+ _t=$(ip addr show to "${_ip}/128")
+ case "$_t" in
+ "")
+ echo "Failed to add $_ip/$_maskbits on dev $_iface"
+ return 1
+ ;;
+ *tentative* | *dadfailed*)
+ echo "Failed to add $_ip/$_maskbits on dev $_iface"
+ ip addr del "$_ip/$_maskbits" dev "$_iface"
+ return 1
+ ;;
+ esac
+ fi
}
delete_ip_from_iface()
{
- _iface=$1
- _ip=$2
- _maskbits=$3
-
- # This could be set globally for all interfaces but it is probably
- # better to avoid surprises, so limit it the interfaces where CTDB
- # has public IP addresses. There isn't anywhere else convenient
- # to do this so just set it each time. This is much cheaper than
- # remembering and re-adding secondaries.
- set_proc "sys/net/ipv4/conf/${_iface}/promote_secondaries" 1
-
- ip addr del "$_ip/$_maskbits" dev "$_iface" || {
- echo "Failed to del $_ip on dev $_iface"
- return 1
- }
+ _iface=$1
+ _ip=$2
+ _maskbits=$3
+
+ # This could be set globally for all interfaces but it is probably
+ # better to avoid surprises, so limit it the interfaces where CTDB
+ # has public IP addresses. There isn't anywhere else convenient
+ # to do this so just set it each time. This is much cheaper than
+ # remembering and re-adding secondaries.
+ set_proc "sys/net/ipv4/conf/${_iface}/promote_secondaries" 1
+
+ ip addr del "$_ip/$_maskbits" dev "$_iface" || {
+ echo "Failed to del $_ip on dev $_iface"
+ return 1
+ }
}
# If the given IP is hosted then print 2 items: maskbits and iface
-ip_maskbits_iface ()
+ip_maskbits_iface()
{
- _addr="$1"
+ _addr="$1"
- case "$_addr" in
+ case "$_addr" in
*:*) _bits=128 ;;
- *) _bits=32 ;;
- esac
- ip addr show to "${_addr}/${_bits}" 2>/dev/null | \
- awk 'NR == 1 { iface = $2; sub(":$", "", iface) ;
+ *) _bits=32 ;;
+ esac
+ ip addr show to "${_addr}/${_bits}" 2>/dev/null |
+ awk 'NR == 1 { iface = $2; sub(":$", "", iface) ;
sub("@.*", "", iface) }
$1 ~ /inet/ { mask = $2; sub(".*/", "", mask);
print mask, iface }'
}
-drop_ip ()
+drop_ip()
{
- _addr="${1%/*}" # Remove optional maskbits
-
- # Intentional word splitting here
- # shellcheck disable=SC2046
- set -- $(ip_maskbits_iface "$_addr")
- if [ -n "$1" ] ; then
- _maskbits="$1"
- _iface="$2"
- echo "Removing public address $_addr/$_maskbits from device $_iface"
- delete_ip_from_iface "$_iface" "$_addr" "$_maskbits" >/dev/null 2>&1
- fi
+ _addr="${1%/*}" # Remove optional maskbits
+
+ # Intentional word splitting here
+ # shellcheck disable=SC2046
+ set -- $(ip_maskbits_iface "$_addr")
+ if [ -n "$1" ]; then
+ _maskbits="$1"
+ _iface="$2"
+ echo "Removing public address $_addr/$_maskbits from device $_iface"
+ delete_ip_from_iface "$_iface" "$_addr" "$_maskbits" >/dev/null 2>&1
+ fi
}
-drop_all_public_ips ()
+drop_all_public_ips()
{
# _x is intentionally ignored
# shellcheck disable=SC2034
- while read _ip _x ; do
+ while read _ip _x; do
case "$_ip" in
\#*) continue ;;
esac
done <"${CTDB_BASE}/public_addresses"
}
-flush_route_cache ()
+flush_route_cache()
{
- set_proc_maybe sys/net/ipv4/route/flush 1
- set_proc_maybe sys/net/ipv6/route/flush 1
+ set_proc_maybe sys/net/ipv4/route/flush 1
+ set_proc_maybe sys/net/ipv6/route/flush 1
}
########################################################
# If the interface is a virtual one (e.g. VLAN) then get the
# underlying interface
-interface_get_real ()
+interface_get_real()
{
_iface="$1"
}
# Check whether an interface is operational
-interface_monitor ()
+interface_monitor()
{
- _iface="$1"
-
- _iface_info=$(ip -br link show "$_iface" 2>&1) || {
- echo "ERROR: Monitored interface ${_iface} does not exist"
- return 1
- }
-
-
- # If the interface is a virtual one (e.g. VLAN) then get the
- # underlying interface.
- _realiface=$(interface_get_real "${_iface_info%% *}")
+ _iface="$1"
- if _bi=$(get_proc "net/bonding/${_realiface}" 2>/dev/null) ; then
- # This is a bond: various monitoring strategies
- echo "$_bi" | grep -q 'Currently Active Slave: None' && {
- echo "ERROR: No active slaves for bond device ${_realiface}"
- return 1
- }
- echo "$_bi" | grep -q '^MII Status: up' || {
- echo "ERROR: public network interface ${_realiface} is down"
- return 1
- }
- echo "$_bi" | grep -q '^Bonding Mode: IEEE 802.3ad Dynamic link aggregation' && {
- # This works around a bug in the driver where the
- # overall bond status can be up but none of the actual
- # physical interfaces have a link.
- echo "$_bi" | grep 'MII Status:' | tail -n +2 | grep -q '^MII Status: up' || {
- echo "ERROR: No active slaves for 802.ad bond device ${_realiface}"
+ _iface_info=$(ip -br link show "$_iface" 2>&1) || {
+ echo "ERROR: Monitored interface ${_iface} does not exist"
return 1
- }
}
- return 0
- else
- # Not a bond
- case "$_iface" in
- lo*)
- # loopback is always working
- return 0
- ;;
- ib*)
- # we don't know how to test ib links
- return 0
- ;;
- *)
- ethtool "$_iface" | grep -q 'Link detected: yes' || {
- # On some systems, this is not successful when a
- # cable is plugged but the interface has not been
- # brought up previously. Bring the interface up
- # and try again...
- ip link set "$_iface" up
- ethtool "$_iface" | grep -q 'Link detected: yes' || {
- echo "ERROR: No link on the public network interface ${_iface}"
+ # If the interface is a virtual one (e.g. VLAN) then get the
+ # underlying interface.
+ _realiface=$(interface_get_real "${_iface_info%% *}")
+
+ if _bi=$(get_proc "net/bonding/${_realiface}" 2>/dev/null); then
+ # This is a bond: various monitoring strategies
+ echo "$_bi" | grep -q 'Currently Active Slave: None' && {
+ echo "ERROR: No active slaves for bond device ${_realiface}"
+ return 1
+ }
+ echo "$_bi" | grep -q '^MII Status: up' || {
+ echo "ERROR: public network interface ${_realiface} is down"
return 1
- }
}
+ echo "$_bi" | grep -q '^Bonding Mode: IEEE 802.3ad Dynamic link aggregation' && {
+ # This works around a bug in the driver where the
+ # overall bond status can be up but none of the actual
+ # physical interfaces have a link.
+ echo "$_bi" | grep 'MII Status:' | tail -n +2 | grep -q '^MII Status: up' || {
+ echo "ERROR: No active slaves for 802.ad bond device ${_realiface}"
+ return 1
+ }
+ }
+
return 0
- ;;
- esac
- fi
+ else
+ # Not a bond
+ case "$_iface" in
+ lo*)
+ # loopback is always working
+ return 0
+ ;;
+ ib*)
+ # we don't know how to test ib links
+ return 0
+ ;;
+ *)
+ ethtool "$_iface" | grep -q 'Link detected: yes' || {
+ # On some systems, this is not successful when a
+ # cable is plugged but the interface has not been
+ # brought up previously. Bring the interface up
+ # and try again...
+ ip link set "$_iface" up
+ ethtool "$_iface" | grep -q 'Link detected: yes' || {
+ echo "ERROR: No link on the public network interface ${_iface}"
+ return 1
+ }
+ }
+ return 0
+ ;;
+ esac
+ fi
}
########################################################
# Simple counters
-_ctdb_counter_common ()
+_ctdb_counter_common()
{
[ $# -le 1 ] || die "usage: _ctdb_counter_common [name]"
- if [ $# -eq 1 ] ; then
+ if [ $# -eq 1 ]; then
_counter_name="${1}.failcount"
else
_counter_name="failcount"
fi
- if [ -z "$script_state_dir" ] ; then
+ if [ -z "$script_state_dir" ]; then
die "ctdb_counter_* functions need ctdb_setup_state_dir()"
fi
}
# Some code passes an argument
# shellcheck disable=SC2120
-ctdb_counter_init () {
- _ctdb_counter_common "$1"
+ctdb_counter_init()
+{
+ _ctdb_counter_common "$1"
- : >"$_counter_file"
+ : >"$_counter_file"
}
-ctdb_counter_incr () {
- _ctdb_counter_common "$1"
+ctdb_counter_incr()
+{
+ _ctdb_counter_common "$1"
- # unary counting using newlines!
- echo >>"$_counter_file"
+ # unary counting using newlines!
+ echo >>"$_counter_file"
}
-ctdb_counter_get () {
- _ctdb_counter_common "$1"
- # unary counting!
- _val=$(wc -c < "$_counter_file" 2>/dev/null || echo 0)
- # Strip leading spaces from output of wc (on freebsd)
- # shellcheck disable=SC2086
- echo $_val
+ctdb_counter_get()
+{
+ _ctdb_counter_common "$1"
+ # unary counting!
+ _val=$(wc -c <"$_counter_file" 2>/dev/null || echo 0)
+ # Strip leading spaces from output of wc (on freebsd)
+ # shellcheck disable=SC2086
+ echo $_val
}
########################################################
# ctdb_setup_state_dir <type> <name>
# Sets/creates script_state_dir)
-ctdb_setup_state_dir ()
+ctdb_setup_state_dir()
{
[ $# -eq 2 ] || die "usage: ctdb_setup_state_dir <type> <name>"
script_state_dir="${CTDB_SCRIPT_VARDIR}/${_type}/${_name}"
- mkdir -p "$script_state_dir" || \
+ mkdir -p "$script_state_dir" ||
die "Error creating script state dir \"${script_state_dir}\""
}
##################################################################
# Reconfigure a service on demand
-_ctdb_service_reconfigure_common ()
+_ctdb_service_reconfigure_common()
{
- if [ -z "$script_state_dir" ] ; then
+ if [ -z "$script_state_dir" ]; then
die "ctdb_service_*_reconfigure() needs ctdb_setup_state_dir()"
fi
_ctdb_service_reconfigure_flag="${script_state_dir}/need_reconfigure"
}
-ctdb_service_needs_reconfigure ()
+ctdb_service_needs_reconfigure()
{
- _ctdb_service_reconfigure_common
- [ -e "$_ctdb_service_reconfigure_flag" ]
+ _ctdb_service_reconfigure_common
+ [ -e "$_ctdb_service_reconfigure_flag" ]
}
-ctdb_service_set_reconfigure ()
+ctdb_service_set_reconfigure()
{
- _ctdb_service_reconfigure_common
- : >"$_ctdb_service_reconfigure_flag"
+ _ctdb_service_reconfigure_common
+ : >"$_ctdb_service_reconfigure_flag"
}
-ctdb_service_unset_reconfigure ()
+ctdb_service_unset_reconfigure()
{
- _ctdb_service_reconfigure_common
- rm -f "$_ctdb_service_reconfigure_flag"
+ _ctdb_service_reconfigure_common
+ rm -f "$_ctdb_service_reconfigure_flag"
}
-ctdb_service_reconfigure ()
+ctdb_service_reconfigure()
{
- echo "Reconfiguring service \"${service_name}\"..."
- ctdb_service_unset_reconfigure
- service_reconfigure || return $?
- # Intentionally have this use $service_name as default
- # shellcheck disable=SC2119
- ctdb_counter_init
+ echo "Reconfiguring service \"${service_name}\"..."
+ ctdb_service_unset_reconfigure
+ service_reconfigure || return $?
+ # Intentionally have this use $service_name as default
+ # shellcheck disable=SC2119
+ ctdb_counter_init
}
# Default service_reconfigure() function does nothing.
-service_reconfigure ()
+service_reconfigure()
{
- :
+ :
}
# Default service_start() and service_stop() functions.
# These may be overridden in an eventscript.
-service_start ()
+service_start()
{
- service "$service_name" start
+ service "$service_name" start
}
-service_stop ()
+service_stop()
{
- service "$service_name" stop
+ service "$service_name" stop
}
##################################################################
# This exists only for backward compatibility with 3rd party scripts
# that call it
-ctdb_standard_event_handler ()
+ctdb_standard_event_handler()
{
- :
+ :
}
-iptables_wrapper ()
+iptables_wrapper()
{
- _family="$1" ; shift
- if [ "$_family" = "inet6" ] ; then
- _iptables_cmd="ip6tables"
- else
- _iptables_cmd="iptables"
- fi
+ _family="$1"
+ shift
+ if [ "$_family" = "inet6" ]; then
+ _iptables_cmd="ip6tables"
+ else
+ _iptables_cmd="iptables"
+ fi
- # iptables doesn't like being re-entered, so flock-wrap it.
- flock -w 30 "${CTDB_SCRIPT_VARDIR}/iptables.flock" "$_iptables_cmd" "$@"
+ # iptables doesn't like being re-entered, so flock-wrap it.
+ flock -w 30 "${CTDB_SCRIPT_VARDIR}/iptables.flock" "$_iptables_cmd" "$@"
}
# AIX (and perhaps others?) doesn't have mktemp
# type is commonly supported and more portable than which(1)
# shellcheck disable=SC2039
-if ! type mktemp >/dev/null 2>&1 ; then
- mktemp ()
- {
- _dir=false
- if [ "$1" = "-d" ] ; then
- _dir=true
- shift
- fi
- _d="${TMPDIR:-/tmp}"
- _hex10=$(dd if=/dev/urandom count=20 2>/dev/null | \
- cksum | \
- awk '{print $1}')
- _t="${_d}/tmp.${_hex10}"
- (
- umask 077
- if $_dir ; then
- mkdir "$_t"
- else
- : >"$_t"
- fi
- )
- echo "$_t"
- }
+if ! type mktemp >/dev/null 2>&1; then
+ mktemp()
+ {
+ _dir=false
+ if [ "$1" = "-d" ]; then
+ _dir=true
+ shift
+ fi
+ _d="${TMPDIR:-/tmp}"
+ _hex10=$(dd if=/dev/urandom count=20 2>/dev/null |
+ cksum |
+ awk '{print $1}')
+ _t="${_d}/tmp.${_hex10}"
+ (
+ umask 077
+ if $_dir; then
+ mkdir "$_t"
+ else
+ : >"$_t"
+ fi
+ )
+ echo "$_t"
+ }
fi
######################################################################
# NFS callout handling
-nfs_callout_init ()
+nfs_callout_init()
{
_state_dir="$1"
- if [ -z "$CTDB_NFS_CALLOUT" ] ; then
+ if [ -z "$CTDB_NFS_CALLOUT" ]; then
CTDB_NFS_CALLOUT="${CTDB_BASE}/nfs-linux-kernel-callout"
fi
# Always export, for statd callout
export CTDB_NFS_CALLOUT_STATE_DIR="${_state_dir}/callout-state"
# Export, if set, for use by clustered NFS callouts
- if [ -n "$CTDB_NFS_STATE_FS_TYPE" ] ; then
+ if [ -n "$CTDB_NFS_STATE_FS_TYPE" ]; then
export CTDB_NFS_STATE_FS_TYPE
fi
- if [ -n "$CTDB_NFS_STATE_MNT" ] ; then
+ if [ -n "$CTDB_NFS_STATE_MNT" ]; then
export CTDB_NFS_STATE_MNT
fi
nfs_callout_cache_ops="${nfs_callout_cache}/ops"
}
-nfs_callout_register ()
+nfs_callout_register()
{
- mkdir -p "$nfs_callout_cache_ops"
- rm -f "$nfs_callout_cache_ops"/*
+ mkdir -p "$nfs_callout_cache_ops"
+ rm -f "$nfs_callout_cache_ops"/*
- echo "$CTDB_NFS_CALLOUT" >"$nfs_callout_cache_callout"
+ echo "$CTDB_NFS_CALLOUT" >"$nfs_callout_cache_callout"
- _t=$("$CTDB_NFS_CALLOUT" "register")
- if [ -n "$_t" ] ; then
- echo "$_t" |
- while IFS="" read _op ; do
- touch "${nfs_callout_cache_ops}/${_op}"
- done
- else
- touch "${nfs_callout_cache_ops}/ALL"
- fi
+ _t=$("$CTDB_NFS_CALLOUT" "register")
+ if [ -n "$_t" ]; then
+ echo "$_t" |
+ while IFS="" read _op; do
+ touch "${nfs_callout_cache_ops}/${_op}"
+ done
+ else
+ touch "${nfs_callout_cache_ops}/ALL"
+ fi
}
-nfs_callout ()
+nfs_callout()
{
- # Re-run registration if $CTDB_NFS_CALLOUT has changed
- _prev=""
- if [ -r "$nfs_callout_cache_callout" ] ; then
- read _prev <"$nfs_callout_cache_callout"
- fi
- if [ "$CTDB_NFS_CALLOUT" != "$_prev" ] ; then
- nfs_callout_register
- fi
+ # Re-run registration if $CTDB_NFS_CALLOUT has changed
+ _prev=""
+ if [ -r "$nfs_callout_cache_callout" ]; then
+ read _prev <"$nfs_callout_cache_callout"
+ fi
+ if [ "$CTDB_NFS_CALLOUT" != "$_prev" ]; then
+ nfs_callout_register
+ fi
- # Run the operation if it is registered...
- if [ -e "${nfs_callout_cache_ops}/${1}" ] || \
- [ -e "${nfs_callout_cache_ops}/ALL" ]; then
- "$CTDB_NFS_CALLOUT" "$@"
- fi
+ # Run the operation if it is registered...
+ if [ -e "${nfs_callout_cache_ops}/${1}" ] ||
+ [ -e "${nfs_callout_cache_ops}/ALL" ]; then
+ "$CTDB_NFS_CALLOUT" "$@"
+ fi
}
########################################################
# tickle handling
########################################################
-update_tickles ()
+update_tickles()
{
_port="$1"
# IPs and port as ss filters
_ip_filter=""
- for _ip in $_ips ; do
- _ip_filter="${_ip_filter}${_ip_filter:+ || }src [${_ip}]"
+ for _ip in $_ips; do
+ _ip_filter="${_ip_filter}${_ip_filter:+ || }src [${_ip}]"
done
_port_filter="sport == :${_port}"
# parsing and printing code, something needs to be done here
# for backward compatibility, so just delete the brackets.
ss -tn state established \
- "${_ip_filter:+( ${_ip_filter} )}" \
- "${_port_filter:+( ${_port_filter} )}" |
- awk 'NR > 1 {print $4, $3}' |
- tr -d '][' |
- sort >"$_my_connections"
+ "${_ip_filter:+( ${_ip_filter} )}" \
+ "${_port_filter:+( ${_port_filter} )}" |
+ awk 'NR > 1 {print $4, $3}' |
+ tr -d '][' |
+ sort >"$_my_connections"
# Record our current tickles in a temporary file
_my_tickles="${tickledir}/${_port}.tickles.$$"
- for _i in $_ips ; do
+ for _i in $_ips; do
$CTDB -X gettickles "$_i" "$_port" |
- awk -F'|' 'NR > 1 { printf "%s:%s %s:%s\n", $2, $3, $4, $5 }'
+ awk -F'|' 'NR > 1 { printf "%s:%s %s:%s\n", $2, $3, $4, $5 }'
done |
- sort >"$_my_tickles"
+ sort >"$_my_tickles"
# Add tickles for connections that we haven't already got tickles for
- comm -23 "$_my_connections" "$_my_tickles" | \
+ comm -23 "$_my_connections" "$_my_tickles" |
$CTDB addtickle
# Remove tickles for connections that are no longer there
- comm -13 "$_my_connections" "$_my_tickles" | \
+ comm -13 "$_my_connections" "$_my_tickles" |
$CTDB deltickle
rm -f "$_my_connections" "$_my_tickles"
}
[ -d "${CTDB_BASE}/rc.local.d" ] && {
- for i in "${CTDB_BASE}/rc.local.d"/* ; do
+ for i in "${CTDB_BASE}/rc.local.d"/*; do
[ -x "$i" ] && . "$i"
done
}
-script_name="${0##*/}" # basename
+script_name="${0##*/}" # basename
git.samba.org / vlendec / samba-autobuild / .git / commitdiff