ctdb/tests/complex/36_smb_reset_server.sh

   1 #!/bin/bash
   2
   3 test_info()
   4 {
   5     cat <<EOF
   6 Verify that the server end of an SMB connection is correctly reset
   7
   8 Prerequisites:
   9
  10 * An active CTDB cluster with at least 2 nodes with public addresses.
  11
  12 * Test must be run on a real or virtual cluster rather than against
  13   local daemons.
  14
  15 * Test must not be run from a cluster node.
  16
  17 * Clustered Samba must be listening on TCP port 445.
  18
  19 Expected results:
  20
  21 * CTDB should correctly record the connection and the releasing node
  22   should reset the server end of the connection.
  23 EOF
  24 }
  25
  26 . "${TEST_SCRIPTS_DIR}/integration.bash"
  27
  28 set -e
  29
  30 ctdb_test_init "$@"
  31
  32 ctdb_test_check_real_cluster
  33
  34 cluster_is_healthy
  35
  36 # Reset configuration
  37 ctdb_restart_when_done
  38
  39 # We need this for later, so we know how long to sleep.
  40 try_command_on_node 0 $CTDB getvar MonitorInterval
  41 monitor_interval="${out#*= }"
  42
  43 select_test_node_and_ips
  44
  45 test_port=445
  46
  47 echo "Set NoIPTakeover=1 on all nodes"
  48 try_command_on_node all $CTDB setvar NoIPTakeover 1
  49
  50 echo "Give the recovery daemon some time to reload tunables"
  51 sleep_for 5
  52
  53 echo "Connecting to node ${test_node} on IP ${test_ip}:${test_port} with nc..."
  54
  55 nc -d -w $(($monitor_interval * 4)) $test_ip $test_port &
  56 nc_pid=$!
  57 ctdb_test_exit_hook_add "kill $nc_pid >/dev/null 2>&1"
  58
  59 wait_until_get_src_socket "tcp" "${test_ip}:${test_port}" $nc_pid "nc"
  60 src_socket="$out"
  61 echo "Source socket is $src_socket"
  62
  63 # This should happen as soon as connection is up... but unless we wait
  64 # we sometimes beat the registration.
  65 echo "Checking if CIFS connection is tracked by CTDB on test node..."
  66 wait_until 10 check_tickles $test_node $test_ip $test_port $src_socket
  67 echo "$out"
  68
  69 if [ "${out/SRC: ${src_socket} /}" != "$out" ] ; then
  70     echo "GOOD: CIFS connection tracked OK by CTDB."
  71 else
  72     echo "BAD: Socket not tracked by CTDB."
  73     exit 1
  74 fi
  75
  76 # It would be nice if ss consistently used local/peer instead of src/dst
  77 ss_filter="src ${test_ip}:${test_port} dst ${src_socket}"
  78
  79 try_command_on_node $test_node \
  80                     "ss -tn state established '${ss_filter}' | tail -n +2"
  81 if [ -z "$out" ] ; then
  82         echo "BAD: ss did not list the socket"
  83         exit 1
  84 fi
  85 echo "GOOD: ss lists the socket:"
  86 echo "$out"
  87
  88 echo "Disabling node $test_node"
  89 try_command_on_node 1 $CTDB disable -n $test_node
  90 wait_until_node_has_status $test_node disabled
  91
  92 try_command_on_node $test_node \
  93                     "ss -tn state established '${ss_filter}' | tail -n +2"
  94 if [ -n "$out" ] ; then
  95         echo "BAD: ss listed the socket after failover"
  96         exit 1
  97 fi
  98 echo "GOOD: ss no longer lists the socket"