diff options
| -rwxr-xr-x | ctdb/config/functions | 112 |
1 files changed, 98 insertions, 14 deletions
diff --git a/ctdb/config/functions b/ctdb/config/functions index 617db882a2..737c8a7e7c 100755 --- a/ctdb/config/functions +++ b/ctdb/config/functions @@ -343,10 +343,64 @@ ctdb_check_tcp_init () ctdb_check_tcp_ports() { - _ctdb_check_tcp_common + if [ -z "$1" ] ; then + echo "INTERNAL ERROR: ctdb_check_tcp_ports - no ports specified" + exit 1 + fi + + # Set default value for CTDB_TCP_PORT_CHECKS if unset. + # If any of these defaults are unsupported then this variable can + # be overridden in /etc/sysconfig/ctdb or via a file in + # /etc/ctdb/rc.local.d/. + : ${CTDB_TCP_PORT_CHECKERS:=nmap netstat} + + for _c in $CTDB_TCP_PORT_CHECKERS ; do + ctdb_check_tcp_ports_$_c "$@" + case "$?" in + 0) + rm -f "$_ctdb_service_started_file" + return 0 + ;; + 1) + _ctdb_check_tcp_common + if [ ! -f "$_ctdb_service_started_file" ] ; then + echo "ERROR: $service_name tcp port $_p is not responding" + debug <<EOF +$ctdb_check_tcp_ports_debug +EOF + else + echo "INFO: $service_name tcp port $_p is not responding" + fi + + return 1 + ;; + 127) + debug <<EOF +ctdb_check_ports - checker $_c not implemented +output from checker was: +$ctdb_check_tcp_ports_debug +EOF + ;; + *) + + esac + done + echo "INTERNAL ERROR: ctdb_check_ports - no working checkers in CTDB_TCP_PORT_CHECKERS=\"$CTDB_TCP_PORT_CHECKERS\"" + + return 127 +} + +ctdb_check_tcp_ports_netstat () +{ _cmd='netstat -l -t -n' - _ns=$($_cmd) + _ns=$($_cmd 2>&1) + if [ $? -eq 127 ] ; then + # netstat probably not installed - unlikely? + ctdb_check_tcp_ports_debug="$_ns" + return 127 + fi + for _p ; do # process each function argument (port) for _a in '0\.0\.0\.0' '::' ; do _pat="[[:space:]]${_a}:${_p}[[:space:]]+[^[:space:]]+[[:space:]]+LISTEN" @@ -356,21 +410,51 @@ ctdb_check_tcp_ports() fi done - # We didn't match the port, so flag an error, print some debug - if [ ! -f "$_ctdb_service_started_file" ] ; then - echo "ERROR: $service_name tcp port $_p is not responding" -debug <<EOF -$_cmd shows this output: -$_ns -EOF - else - echo "INFO: $service_name tcp port $_p is not responding" - fi - + # We didn't match the port, so flag an error. + ctdb_check_tcp_ports_debug="$_cmd shows this output: +$_ns" return 1 done - rm -f "$_ctdb_service_started_file" + return 0 +} + +ctdb_check_tcp_ports_nmap () +{ + # nmap wants a comma-separated list of ports + _ports="" + for _p ; do + _ports="${_ports}${_ports:+,}${_p}" + done + + _cmd="nmap -n -oG - -PS 127.0.0.1 -p $_ports" + + _nmap_out=$($_cmd 2>&1) + if [ $? -eq 127 ] ; then + # nmap probably not installed + ctdb_check_tcp_ports_debug="$_nmap_out" + return 127 + fi + + # get the port-related output + _port_info=$(echo "$_nmap_out" | sed -n -r -e 's@^.*Ports:[[:space:]]@@p') + + for _p ; do + # looking for something like this: + # 445/open/tcp//microsoft-ds/// + # possibly followed by a comma + _t="$_p/open/tcp//" + case "$_port_info" in + # The info we're after must be either at the beginning of + # the string or it must follow a space. + $_t*|*\ $_t*) : ;; + *) + # Nope, flag an error... + ctdb_check_tcp_ports_debug="$_cmd shows this output: +$_nmap_out" + return 1 + esac + done return 0 } |