tests/regression/tools/filtering/test_invalid_filter

   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 SESSION_NAME="filter-invalid"
  23 EVENT_NAME="bogus"
  24 ENABLE_EVENT_STDERR="/tmp/invalid-filters-stderr"
  25 TRACE_PATH=$(mktemp -d)
  26 NUM_GLOBAL_TESTS=2
  27 NUM_UST_TESTS=135
  28 NUM_KERNEL_TESTS=135
  29 NUM_TESTS=$(($NUM_UST_TESTS+$NUM_KERNEL_TESTS+$NUM_GLOBAL_TESTS))
  30
  31 source $TESTDIR/utils/utils.sh
  32
  33 function enable_lttng_event_filter
  34 {
  35         domain="$1"
  36         sess_name="$2"
  37         event_name="$3"
  38         filter="$4"
  39
  40         $TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-event $event_name -s $sess_name \
  41                 $domain --filter "$filter" 2> $ENABLE_EVENT_STDERR 1> /dev/null
  42
  43         # Enable must fail
  44         if [ $? -eq 0 ]; then
  45                 fail "Enable lttng event with filtering and invalid filter"
  46                 return 1
  47         else
  48                 pass "Enable lttng event with filtering and invalid filter"
  49                 return 0
  50         fi
  51 }
  52
  53 function test_invalid_filter
  54 {
  55         domain="$1"
  56         test_invalid_filter="$2"
  57
  58         diag "Test filter expression with invalid filter"
  59         diag "Filter: $test_invalid_filter"
  60
  61         # Create session
  62         create_lttng_session_ok $SESSION_NAME $TRACE_PATH
  63
  64         # Apply filter
  65         enable_lttng_event_filter $domain $SESSION_NAME $EVENT_NAME "$test_invalid_filter"
  66
  67         # Destroy session
  68         destroy_lttng_session_ok $SESSION_NAME
  69 }
  70
  71 function test_bytecode_limit
  72 {
  73         domain="$1"
  74
  75         # Current bytecode limitation is 65536 bytes long.
  76         # Generate a huge bytecode with some perl-fu
  77         BYTECODE_LIMIT=`perl -e 'print "intfield" . " && 1" x5460'`
  78
  79         diag "Test filter bytecode limits (64KiB)"
  80
  81         # Create session
  82         create_lttng_session_ok $SESSION_NAME $TRACE_PATH
  83
  84         # Apply filter
  85         enable_lttng_event_filter $domain $SESSION_NAME $EVENT_NAME "$BYTECODE_LIMIT"
  86
  87         # Destroy session
  88         destroy_lttng_session_ok $SESSION_NAME
  89 }
  90
  91 plan_tests $NUM_TESTS
  92
  93 print_test_banner "$TEST_DESC"
  94
  95 OLDIFS="$IFS"
  96 IFS=$'\n'
  97 INVALID_FILTERS=(
  98                 # Unsupported ops
  99                 "intfield*1"
 100                 "intfield/1"
 101                 "intfield+1"
 102                 "intfield-1"
 103                 "1+11111-3333+1"
 104                 "(1+2)*(55*666)"
 105                 "1+2*55*666"
 106                 "asdf + 1 > 1"
 107                 "asdfas < 2332 || asdf + 1 > 1"
 108                 "!+-+++-------+++++++++++-----!!--!44+1"
 109                 "aaa||(gg)+(333----1)"
 110                 "1+1"
 111                 # Unmatched parenthesis
 112                 "((((((((((((((intfield)))))))))))))"
 113                 '0 || ("abc" != "def")) && (3 < 4)'
 114                 "a->"
 115                 "a-->a"
 116                 "a.b.c->d.e.f+1"
 117                 # String can\'t be root node
 118                 "\"somestring\""
 119                 # Unary op on string not allowed
 120                 "!\"somestring\""
 121                 # Comparison with string type not allowed
 122                 "\"somestring\" > 42"
 123                 "\"somestring\" > 42.0"
 124                 "42 > \"somestring\""
 125                 "42.0 > \"somestring\""
 126                 # Logical operator with string type not allowed
 127                 "\"somestring\" || 1"
 128                 "1 || \"somestring\""
 129                 "\$ctx == 0"
 130                 "0 == \$ctx"
 131                 # Only \$ctx is supported for now
 132                 "\$global.value == 0"
 133                 "0 == \$global.value"
 134                 # Cannot compare two full star globbing patterns
 135                 '"hello*world" == "yes*man"'
 136                 '"hello*world" == "yesman*"'
 137                 '"helloworld*" == "yes*man"'
 138                 # May only use != and == operators when one of them is a full
 139                 # star globbing pattern
 140                 '"hello*world" < field'
 141                 '"hello*world" <= field'
 142                 '"hello*world" >= field'
 143                 '"hello*world" > field'
 144                 '"hello*world" || field'
 145                 '"hello*world" && field'
 146                 'field < "hello*world"'
 147                 'field <= "hello*world"'
 148                 'field >= "hello*world"'
 149                 'field > "hello*world"'
 150                 'field && "hello*world"'
 151                 'field || "hello*world"'
 152 )
 153 IFS="$OLDIFS"
 154
 155 start_lttng_sessiond
 156 diag "Test UST filters"
 157
 158 i=0
 159 while [ "$i" -lt "${#INVALID_FILTERS[@]}" ]; do
 160         echo "${INVALID_FILTERS[$i]}"
 161         test_invalid_filter -u "${INVALID_FILTERS[$i]}"
 162         let "i++"
 163 done
 164
 165 test_bytecode_limit -u
 166
 167 if [ "$(id -u)" == "0" ]; then
 168         isroot=1
 169 else
 170         isroot=0
 171 fi
 172
 173 skip $isroot "Root access is needed. Skipping all kernel invalid filter tests." $NUM_KERNEL_TESTS ||
 174 {
 175         diag "Test kernel filters"
 176         i=0
 177         while [ "$i" -lt "${#INVALID_FILTERS[@]}" ]; do
 178                 echo "${INVALID_FILTERS[$i]}"
 179                 test_invalid_filter -k "${INVALID_FILTERS[$i]}"
 180                 let "i++"
 181         done
 182
 183         test_bytecode_limit -k
 184 }
 185 stop_lttng_sessiond
 186
 187 rm -f $ENABLE_EVENT_STDERR
 188 rm -rf $TRACE_PATH