projects / lttng-tools.git / blame
| Commit | Line | Data |
|---|---|---|
| f62a3871 MJ |
1 | #!/bin/bash |
| 2 | # | |
| 3 | # Copyright (C) 2019 Michael Jeanson <mjeanson@efficios.com> | |
| 4 | # | |
| 9d16b343 | 5 | # SPDX-License-Identifier: LGPL-2.1-only |
| f62a3871 MJ |
6 | |
| 7 | TEST_DESC="Kernel tracer - Namespace contexts" | |
| 8 | ||
| 9 | CURDIR=$(dirname "$0")/ | |
| 10 | TESTDIR=$CURDIR/../.. | |
| 11 | ||
| 12 | TESTS_PER_NS=11 | |
| 13 | ||
| d37ac3cd | 14 | NUM_TESTS=$((TESTS_PER_NS * 8)) |
| f62a3871 MJ |
15 | |
| 16 | source "$TESTDIR/utils/utils.sh" | |
| 17 | ||
| 18 | # MUST set TESTDIR before calling those functions | |
| 19 | function add_context_kernel_skip_ok() | |
| 20 | { | |
| 21 | local session_name=$1 | |
| 22 | local channel_name=$2 | |
| 23 | local context_name=$3 | |
| 24 | local skip_num=$4 | |
| 25 | ||
| 26 | local ret | |
| 27 | ||
| 28 | "$TESTDIR/../src/bin/lttng/$LTTNG_BIN" add-context -k \ | |
| 29 | -s "$session_name" -c "$channel_name" \ | |
| 30 | -t "$context_name" 1>"$OUTPUT_DEST" 2>"$ERROR_OUTPUT_DEST" | |
| 31 | ret=$? | |
| 32 | ||
| 33 | if [ "$ret" == "4" ]; then | |
| 34 | skip 0 "Current kernel doesn't implement '$context_name' context" $((skip_num + 1)) | |
| 35 | else | |
| 36 | ok $ret "Add context command for type: $context_name" | |
| 37 | fi | |
| 38 | ||
| 39 | return $ret | |
| 40 | } | |
| 41 | ||
| 42 | function enable_kernel_lttng_event_filter_ok() | |
| 43 | { | |
| 44 | local session_name=$1 | |
| 45 | local syscall_name=$2 | |
| 46 | local channel_name=$3 | |
| 47 | local filter=$4 | |
| 48 | ||
| 49 | "$TESTDIR/../src/bin/lttng/$LTTNG_BIN" enable-event -k \ | |
| 50 | -c "$channel_name" -s "$session_name" \ | |
| 51 | --syscall "$syscall_name" \ | |
| 52 | -f "$filter" \ | |
| 53 | 1>"$OUTPUT_DEST" 2>"$ERROR_OUTPUT_DEST" | |
| 54 | ||
| 55 | ok $? "Add syscall with filter" | |
| 56 | } | |
| 57 | ||
| 58 | function test_ns() | |
| 59 | { | |
| 60 | local ns=$1 | |
| 61 | ||
| 62 | local session_name="${ns}_ns" | |
| 63 | local chan_name="${ns}_ns" | |
| 64 | local context_name="${ns}_ns" | |
| 65 | ||
| 66 | local trace_path | |
| 67 | local ns_inode | |
| 68 | ||
| 69 | # Check if the kernel has support for this ns type | |
| 70 | if [ ! -f "/proc/$$/ns/$ns" ]; then | |
| 71 | skip 0 "System has no $ns namespace support" $TESTS_PER_NS | |
| 72 | return | |
| 73 | fi | |
| 74 | ||
| 75 | # Get the current ns inode number | |
| 76 | ns_inode=$(stat -c '%i' -L "/proc/$$/ns/$ns") | |
| 77 | ok $? "Get current $ns namespace inode: $ns_inode" | |
| 78 | ||
| 33e55711 | 79 | trace_path=$(mktemp --tmpdir -d tmp.{FUNCNAME[0]}_trace_path.XXXXXX) |
| f62a3871 MJ |
80 | |
| 81 | start_lttng_sessiond | |
| 82 | ||
| 83 | create_lttng_session_ok "$session_name" "$trace_path" | |
| 84 | enable_kernel_lttng_channel_ok "$session_name" "$chan_name" | |
| 85 | add_context_kernel_skip_ok "$session_name" "$chan_name" "$context_name" 4 | |
| 86 | if [ "$?" != "4" ]; then | |
| 87 | enable_kernel_lttng_event_filter_ok "$session_name" "read" "$chan_name" "\$ctx.$context_name == $ns_inode" | |
| 88 | start_lttng_tracing_ok "$session_name" | |
| 89 | ||
| 90 | # Make sure there is at least one read syscall | |
| 91 | cat /proc/cmdline >/dev/null | |
| 92 | ||
| 93 | stop_lttng_tracing_ok "$session_name" | |
| 94 | ||
| 95 | # Check that the events contain the right namespace inode number | |
| 96 | validate_trace "${ns}_ns = $ns_inode" "$trace_path" | |
| 97 | fi | |
| 98 | ||
| 99 | destroy_lttng_session_ok "$session_name" | |
| 100 | stop_lttng_sessiond | |
| 101 | ||
| 102 | rm -rf "$trace_path" | |
| 103 | } | |
| 104 | ||
| 105 | ||
| 106 | plan_tests $NUM_TESTS | |
| 107 | ||
| 108 | print_test_banner "$TEST_DESC" | |
| 109 | ||
| 110 | ||
| 111 | isroot=0 | |
| 112 | if [ "$(id -u)" == "0" ]; then | |
| 113 | isroot=1 | |
| 114 | fi | |
| 115 | ||
| 116 | skip $isroot "Root access is needed. Skipping all tests." "$NUM_TESTS" && exit 0 | |
| 117 | ||
| 118 | ||
| 119 | system_has_ns=0 | |
| 120 | if [ -d "/proc/$$/ns" ]; then | |
| 121 | system_has_ns=1 | |
| 122 | fi | |
| 123 | ||
| 124 | skip $system_has_ns "System does not support namespaces" $NUM_TESTS && exit 0 | |
| 125 | ||
| 126 | ||
| 127 | validate_lttng_modules_present | |
| 128 | ||
| 129 | test_ns cgroup | |
| 130 | test_ns ipc | |
| 131 | test_ns mnt | |
| 132 | test_ns net | |
| 133 | test_ns pid | |
| d37ac3cd | 134 | test_ns time |
| f62a3871 MJ |
135 | test_ns user |
| 136 | test_ns uts |