tests/regression/tools/filtering/invalid-filters

   1 #!/bin/bash
   2 #
   3 # Copyright (C) - 2012 Christian Babeux <christian.babeux@efficios.com>
   4 #
   5 # This program is free software; you can redistribute it and/or modify it
   6 # under the terms of the GNU General Public License, version 2 only, as
   7 # published by the Free Software Foundation.
   8 #
   9 # This program is distributed in the hope that it will be useful, but WITHOUT
  10 # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11 # FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  12 # more details.
  13 #
  14 # You should have received a copy of the GNU General Public License along with
  15 # this program; if not, write to the Free Software Foundation, Inc., 51
  16 # Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  17
  18 TEST_DESC="Filtering - Invalid filters"
  19
  20 CURDIR=$(dirname $0)/
  21 TESTDIR=$CURDIR/../../..
  22 LTTNG_BIN="lttng"
  23 SESSION_NAME="filter-invalid"
  24 EVENT_NAME="bogus"
  25 ENABLE_EVENT_STDERR="/tmp/invalid-filters-stderr"
  26 TRACE_PATH=$(mktemp -d)
  27
  28 source $TESTDIR/utils/utils.sh
  29
  30 print_test_banner "$TEST_DESC"
  31
  32 function enable_ust_lttng_event_filter
  33 {
  34         sess_name="$1"
  35         event_name="$2"
  36         filter="$3"
  37         echo -n "Enabling lttng event with filtering and invalid filter "
  38
  39         $TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-event $event_name -s $sess_name -u --filter "$filter" 2> $ENABLE_EVENT_STDERR 1> /dev/null
  40
  41         # Enable must fail
  42         if [ $? -eq 0 ]; then
  43                 print_fail
  44                 return 1
  45         else
  46                 print_ok
  47                 return 0
  48         fi
  49 }
  50
  51 function test_invalid_filter
  52 {
  53         test_invalid_filter="$1"
  54
  55         echo ""
  56         echo -e "=== Testing filter expression with invalid filter"
  57         echo -e "Filter: $test_invalid_filter"
  58
  59         # Create session
  60         create_lttng_session $SESSION_NAME $TRACE_PATH
  61
  62         # Apply filter
  63         enable_ust_lttng_event_filter $SESSION_NAME $EVENT_NAME "$test_invalid_filter"
  64
  65         # Destroy session
  66         destroy_lttng_session $SESSION_NAME
  67 }
  68
  69 function test_bytecode_limit
  70 {
  71         # Current bytecode limitation is 65536 bytes long.
  72         # Generate a huge bytecode with some perl-fu
  73         BYTECODE_LIMIT=`perl -e 'print "intfield" . " && 1" x5460'`
  74
  75         echo ""
  76         echo -e "=== Testing filter bytecode limits (64KiB)"
  77
  78         # Create session
  79         create_lttng_session $SESSION_NAME $TRACE_PATH
  80
  81         # Apply filter
  82         enable_ust_lttng_event_filter $SESSION_NAME $EVENT_NAME "$BYTECODE_LIMIT"
  83
  84         # Destroy session
  85         destroy_lttng_session $SESSION_NAME
  86 }
  87
  88 IFS=$'\n'
  89 INVALID_FILTERS=(
  90                 # Unsupported ops
  91                 "intfield*1"
  92                 "intfield/1"
  93                 "intfield+1"
  94                 "intfield-1"
  95                 "intfield>>1"
  96                 "intfield<<1"
  97                 "intfield&1"
  98                 "intfield|1"
  99                 "intfield^1"
 100                 "~intfield"
 101                 "1+11111-3333+1"
 102                 "(1+2)*(55*666)"
 103                 "1+2*55*666"
 104                 "asdf + 1 > 1"
 105                 "asdfas < 2332 || asdf + 1 > 1"
 106                 "!+-+++-------+++++++++++-----!!--!44+1"
 107                 "aaa||(gg)+(333----1)"
 108                 "1+1"
 109                 # Unmatched parenthesis
 110                 "((((((((((((((intfield)))))))))))))"
 111                 '0 || ("abc" != "def")) && (3 < 4)'
 112                 # Field dereference
 113                 "a.a.a.a.a.a.a.a.a.a.a.a.a.a.a.a.a.a.a.a"
 114                 "a->"
 115                 "a-->a"
 116                 "a->a"
 117                 "a.b.c->d.e.f+1"
 118                 "!a.f.d"
 119                 "asdf.asdfsd.sadf < 4"
 120                 "asdfasdf->asdfasdf < 2"
 121                 # String can't be root node
 122                 "\"somestring\""
 123                 # Unary op on string not allowed
 124                 "!\"somestring\""
 125                 # Comparison with string type not allowed
 126                 "\"somestring\" > 42"
 127                 "\"somestring\" > 42.0"
 128                 "42 > \"somestring\""
 129                 "42.0 > \"somestring\""
 130                 # Logical operator with string type not allowed
 131                 "\"somestring\" || 1"
 132                 "1 || \"somestring\""
 133                 # Nesting of binary operator not allowed
 134                 "1 | (1 | (1 | 1))"
 135                 "1 > (1 > (1 > 1))"
 136                 )
 137
 138 start_lttng_sessiond
 139 for FILTER in ${INVALID_FILTERS[@]};
 140 do
 141         test_invalid_filter "$FILTER"
 142 done
 143
 144 test_bytecode_limit
 145
 146 unset IFS
 147 stop_lttng_sessiond
 148
 149 rm -f $ENABLE_EVENT_STDERR
 150 rm -rf $TRACE_PATH