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 22owner=stefanha@redhat.com 23 24seq=`basename $0` 25echo "QA output created by $seq" 26 27here=`pwd` 28tmp=/tmp/$$ 29status=1 # failure is the default! 30 31# get standard environment, filters and checks 32. ./common.rc 33. ./common.filter 34 35_supported_fmt generic 36_supported_proto nbd 37_supported_os Linux 38 39# Pick a TCP port based on our pid. This way multiple instances of this test 40# can run in parallel without conflicting. 41choose_tcp_port() { 42 echo $((($$ % 31744) + 1024)) # 1024 <= port < 32768 43} 44 45wait_for_tcp_port() { 46 while ! (netstat --tcp --listening --numeric | \ 47 grep "$1.*0\\.0\\.0\\.0:\\*.*LISTEN") 2>&1 >/dev/null; do 48 sleep 0.1 49 done 50} 51 52check_disconnect() { 53 event=$1 54 when=$2 55 negotiation=$3 56 echo "=== Check disconnect $when $event ===" 57 echo 58 59 port=$(choose_tcp_port) 60 61 cat > "$TEST_DIR/nbd-fault-injector.conf" <<EOF 62[inject-error] 63event=$event 64when=$when 65EOF 66 67 if [ "$negotiation" = "--classic-negotiation" ]; then 68 extra_args=--classic-negotiation 69 nbd_url="nbd:127.0.0.1:$port" 70 else 71 nbd_url="nbd:127.0.0.1:$port:exportname=foo" 72 fi 73 74 $PYTHON nbd-fault-injector.py $extra_args "127.0.0.1:$port" "$TEST_DIR/nbd-fault-injector.conf" 2>&1 >/dev/null & 75 wait_for_tcp_port "127\\.0\\.0\\.1:$port" 76 $QEMU_IO -c "read 0 512" "$nbd_url" 2>&1 | _filter_qemu_io | _filter_nbd 77 78 echo 79} 80 81for event in neg1 "export" neg2 request reply data; do 82 for when in before after; do 83 check_disconnect "$event" "$when" 84 done 85 86 # Also inject short replies from the NBD server 87 case "$event" in 88 neg1) 89 for when in 8 16; do 90 check_disconnect "$event" "$when" 91 done 92 ;; 93 "export") 94 for when in 4 12 16; do 95 check_disconnect "$event" "$when" 96 done 97 ;; 98 neg2) 99 for when in 8 10; do 100 check_disconnect "$event" "$when" 101 done 102 ;; 103 reply) 104 for when in 4 8; do 105 check_disconnect "$event" "$when" 106 done 107 ;; 108 esac 109done 110 111# Also check classic negotiation without export information 112for when in before 8 16 24 28 after; do 113 check_disconnect "neg-classic" "$when" --classic-negotiation 114done 115 116# success, all done 117echo "*** done" 118rm -f $seq.full 119status=0 120