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 here=`pwd`
  28 status=1        # failure is the default!
  29
  30 _cleanup()
  31 {
  32         rm -f nbd.sock
  33         rm -f nbd-fault-injector.out
  34         rm -f nbd-fault-injector.conf
  35 }
  36 trap "_cleanup; exit \$status" 0 1 2 3 15
  37
  38 # get standard environment, filters and checks
  39 . ./common.rc
  40 . ./common.filter
  41
  42 _supported_fmt generic
  43 _supported_proto nbd
  44 _supported_os Linux
  45
  46 check_disconnect() {
  47         local event export_name=foo extra_args nbd_addr nbd_url proto when
  48
  49         while true; do
  50                 case $1 in
  51                 --classic-negotiation)
  52                         shift
  53                         extra_args=--classic-negotiation
  54                         export_name=
  55                         ;;
  56                 --tcp)
  57                         shift
  58                         proto=tcp
  59                         ;;
  60                 --unix)
  61                         shift
  62                         proto=unix
  63                         ;;
  64                 *)
  65                         break
  66                         ;;
  67                 esac
  68         done
  69
  70         event=$1
  71         when=$2
  72         echo "=== Check disconnect $when $event ==="
  73         echo
  74
  75         cat > "$TEST_DIR/nbd-fault-injector.conf" <<EOF
  76 [inject-error]
  77 event=$event
  78 when=$when
  79 EOF
  80
  81         if [ "$proto" = "tcp" ]; then
  82                 nbd_addr="127.0.0.1:0"
  83         else
  84                 nbd_addr="$TEST_DIR/nbd.sock"
  85         fi
  86
  87         rm -f "$TEST_DIR/nbd.sock"
  88
  89         echo > "$TEST_DIR/nbd-fault-injector.out"
  90         $PYTHON nbd-fault-injector.py $extra_args "$nbd_addr" "$TEST_DIR/nbd-fault-injector.conf" >"$TEST_DIR/nbd-fault-injector.out" 2>&1 &
  91
  92         # Wait for server to be ready
  93         while ! grep -q 'Listening on ' "$TEST_DIR/nbd-fault-injector.out"; do
  94                 sleep 0.1
  95         done
  96
  97         # Extract the final address (port number has now been assigned in tcp case)
  98         nbd_addr=$(sed -n 's/^Listening on //p' \
  99                        "$TEST_DIR/nbd-fault-injector.out")
 100
 101         if [ "$proto" = "tcp" ]; then
 102                 nbd_url="nbd+tcp://$nbd_addr/$export_name"
 103         else
 104                 nbd_url="nbd+unix:///$export_name?socket=$nbd_addr"
 105         fi
 106
 107         $QEMU_IO -c "read 0 512" "$nbd_url" 2>&1 | _filter_qemu_io | _filter_nbd
 108
 109         echo
 110 }
 111
 112 for proto in tcp unix; do
 113         for event in neg1 "export" neg2 request reply data; do
 114                 for when in before after; do
 115                         check_disconnect "--$proto" "$event" "$when"
 116                 done
 117
 118                 # Also inject short replies from the NBD server
 119                 case "$event" in
 120                 neg1)
 121                         for when in 8 16; do
 122                                 check_disconnect "--$proto" "$event" "$when"
 123                         done
 124                         ;;
 125                 "export")
 126                         for when in 4 12 16; do
 127                                 check_disconnect "--$proto" "$event" "$when"
 128                         done
 129                         ;;
 130                 neg2)
 131                         for when in 8 10; do
 132                                 check_disconnect "--$proto" "$event" "$when"
 133                         done
 134                         ;;
 135                 reply)
 136                         for when in 4 8; do
 137                                 check_disconnect "--$proto" "$event" "$when"
 138                         done
 139                         ;;
 140                 esac
 141         done
 142
 143         # Also check classic negotiation without export information
 144         for when in before 8 16 24 28 after; do
 145                 check_disconnect "--$proto" --classic-negotiation "neg-classic" "$when"
 146         done
 147 done
 148
 149 # success, all done
 150 echo "*** done"
 151 rm -f $seq.full
 152 status=0