tests/qemu-iotests/083

   1 #!/bin/bash
   2 #
   3 # Test NBD client unexpected disconnect
   4 #
   5 # Copyright Red Hat, Inc. 2014
   6 #
   7 # This program is free software; you can redistribute it and/or modify
   8 # it under the terms of the GNU General Public License as published by
   9 # the Free Software Foundation; either version 2 of the License, or
  10 # (at your option) any later version.
  11 #
  12 # This program is distributed in the hope that it will be useful,
  13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 # GNU General Public License for more details.
  16 #
  17 # You should have received a copy of the GNU General Public License
  18 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  19 #
  20
  21 # creator
  22 owner=stefanha@redhat.com
  23
  24 seq=`basename $0`
  25 echo "QA output created by $seq"
  26
  27 status=1        # failure is the default!
  28
  29 _cleanup()
  30 {
  31         rm -f nbd.sock
  32         rm -f nbd-fault-injector.out
  33         rm -f nbd-fault-injector.conf
  34 }
  35 trap "_cleanup; exit \$status" 0 1 2 3 15
  36
  37 # get standard environment, filters and checks
  38 . ./common.rc
  39 . ./common.filter
  40
  41 _supported_fmt raw
  42 _supported_proto nbd
  43 _supported_os Linux
  44
  45 check_disconnect() {
  46         local event export_name=foo extra_args nbd_addr nbd_url proto when
  47
  48         while true; do
  49                 case $1 in
  50                 --classic-negotiation)
  51                         shift
  52                         extra_args=--classic-negotiation
  53                         export_name=
  54                         ;;
  55                 --tcp)
  56                         shift
  57                         proto=tcp
  58                         ;;
  59                 --unix)
  60                         shift
  61                         proto=unix
  62                         ;;
  63                 *)
  64                         break
  65                         ;;
  66                 esac
  67         done
  68
  69         event=$1
  70         when=$2
  71         echo "=== Check disconnect $when $event ==="
  72         echo
  73
  74         cat > "$TEST_DIR/nbd-fault-injector.conf" <<EOF
  75 [inject-error]
  76 event=$event
  77 when=$when
  78 EOF
  79
  80         if [ "$proto" = "tcp" ]; then
  81                 nbd_addr="127.0.0.1:0"
  82         else
  83                 nbd_addr="$TEST_DIR/nbd.sock"
  84         fi
  85
  86         rm -f "$TEST_DIR/nbd.sock"
  87
  88         echo > "$TEST_DIR/nbd-fault-injector.out"
  89         $PYTHON nbd-fault-injector.py $extra_args "$nbd_addr" "$TEST_DIR/nbd-fault-injector.conf" >"$TEST_DIR/nbd-fault-injector.out" 2>&1 &
  90
  91         # Wait for server to be ready
  92         while ! grep -q 'Listening on ' "$TEST_DIR/nbd-fault-injector.out"; do
  93                 sleep 0.1
  94         done
  95
  96         # Extract the final address (port number has now been assigned in tcp case)
  97         nbd_addr=$(sed -n 's/^Listening on //p' \
  98                        "$TEST_DIR/nbd-fault-injector.out")
  99
 100         if [ "$proto" = "tcp" ]; then
 101                 nbd_url="nbd+tcp://$nbd_addr/$export_name"
 102         else
 103                 nbd_url="nbd+unix:///$export_name?socket=$nbd_addr"
 104         fi
 105
 106         $QEMU_IO -c "read 0 512" "$nbd_url" 2>&1 | _filter_qemu_io | _filter_nbd
 107
 108         echo
 109 }
 110
 111 for proto in tcp unix; do
 112         for event in neg1 "export" neg2 request reply data; do
 113                 for when in before after; do
 114                         check_disconnect "--$proto" "$event" "$when"
 115                 done
 116
 117                 # Also inject short replies from the NBD server
 118                 case "$event" in
 119                 neg1)
 120                         for when in 8 16; do
 121                                 check_disconnect "--$proto" "$event" "$when"
 122                         done
 123                         ;;
 124                 "export")
 125                         for when in 4 12 16; do
 126                                 check_disconnect "--$proto" "$event" "$when"
 127                         done
 128                         ;;
 129                 neg2)
 130                         for when in 8 10; do
 131                                 check_disconnect "--$proto" "$event" "$when"
 132                         done
 133                         ;;
 134                 reply)
 135                         for when in 4 8; do
 136                                 check_disconnect "--$proto" "$event" "$when"
 137                         done
 138                         ;;
 139                 esac
 140         done
 141
 142         # Also check classic negotiation without export information
 143         for when in before 8 16 24 28 after; do
 144                 check_disconnect "--$proto" --classic-negotiation "neg-classic" "$when"
 145         done
 146 done
 147
 148 # success, all done
 149 echo "*** done"
 150 rm -f $seq.full
 151 status=0