| 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 | NUM_TESTS=146 |
| 28 | |
| 29 | source $TESTDIR/utils/utils.sh |
| 30 | |
| 31 | function enable_ust_lttng_event_filter |
| 32 | { |
| 33 | sess_name="$1" |
| 34 | event_name="$2" |
| 35 | filter="$3" |
| 36 | |
| 37 | $TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-event $event_name -s $sess_name -u --filter "$filter" 2> $ENABLE_EVENT_STDERR 1> /dev/null |
| 38 | |
| 39 | # Enable must fail |
| 40 | if [ $? -eq 0 ]; then |
| 41 | fail "Enable lttng event with filtering and invalid filter" |
| 42 | return 1 |
| 43 | else |
| 44 | pass "Enable lttng event with filtering and invalid filter" |
| 45 | return 0 |
| 46 | fi |
| 47 | } |
| 48 | |
| 49 | function test_invalid_filter |
| 50 | { |
| 51 | test_invalid_filter="$1" |
| 52 | |
| 53 | diag "Test filter expression with invalid filter" |
| 54 | diag "Filter: $test_invalid_filter" |
| 55 | |
| 56 | # Create session |
| 57 | create_lttng_session $SESSION_NAME $TRACE_PATH |
| 58 | |
| 59 | # Apply filter |
| 60 | enable_ust_lttng_event_filter $SESSION_NAME $EVENT_NAME "$test_invalid_filter" |
| 61 | |
| 62 | # Destroy session |
| 63 | destroy_lttng_session $SESSION_NAME |
| 64 | } |
| 65 | |
| 66 | function test_bytecode_limit |
| 67 | { |
| 68 | # Current bytecode limitation is 65536 bytes long. |
| 69 | # Generate a huge bytecode with some perl-fu |
| 70 | BYTECODE_LIMIT=`perl -e 'print "intfield" . " && 1" x5460'` |
| 71 | |
| 72 | diag "Test filter bytecode limits (64KiB)" |
| 73 | |
| 74 | # Create session |
| 75 | create_lttng_session $SESSION_NAME $TRACE_PATH |
| 76 | |
| 77 | # Apply filter |
| 78 | enable_ust_lttng_event_filter $SESSION_NAME $EVENT_NAME "$BYTECODE_LIMIT" |
| 79 | |
| 80 | # Destroy session |
| 81 | destroy_lttng_session $SESSION_NAME |
| 82 | } |
| 83 | |
| 84 | plan_tests $NUM_TESTS |
| 85 | |
| 86 | print_test_banner "$TEST_DESC" |
| 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 | # Exactly one chaining level under \$ctx allowed |
| 137 | "\$ctx.vtid.blah == 0" |
| 138 | "0 == \$ctx.vtid.blah" |
| 139 | "\$ctx.44 == 0" |
| 140 | "0 == \$ctx.44" |
| 141 | "\$ctx == 0" |
| 142 | "0 == \$ctx" |
| 143 | # Only \$ctx is supported for now |
| 144 | "\$global.value == 0" |
| 145 | "0 == \$global.value" |
| 146 | # A wildcard should only appear as the last character in a string literal |
| 147 | "msg == \"my_event*_blah\"" |
| 148 | ) |
| 149 | |
| 150 | start_lttng_sessiond |
| 151 | for FILTER in ${INVALID_FILTERS[@]}; |
| 152 | do |
| 153 | test_invalid_filter "$FILTER" |
| 154 | done |
| 155 | |
| 156 | test_bytecode_limit |
| 157 | |
| 158 | unset IFS |
| 159 | stop_lttng_sessiond |
| 160 | |
| 161 | rm -f $ENABLE_EVENT_STDERR |
| 162 | rm -rf $TRACE_PATH |