tests/regression/ust/namespaces/test_ns_contexts

   1 #!/bin/bash
   2 #
   3 # Copyright (C) 2019 Michael Jeanson <mjeanson@efficios.com>
   4 #
   5 # SPDX-License-Identifier: LGPL-2.1-only
   6
   7 TEST_DESC="UST - Namespace contexts"
   8
   9 CURDIR=$(dirname "$0")/
  10 TESTDIR=$CURDIR/../../..
  11
  12 TESTAPP_PATH="$TESTDIR/utils/testapp"
  13 TESTAPP_NAME="gen-ust-events"
  14 TESTAPP_BIN="$TESTAPP_PATH/$TESTAPP_NAME/$TESTAPP_NAME"
  15 NUM_EVENT=1000
  16 EVENT_NAME="tp:tptest"
  17
  18 TESTS_PER_NS=13
  19
  20 NUM_TESTS=$((TESTS_PER_NS * 8))
  21
  22 source "$TESTDIR/utils/utils.sh"
  23
  24 # MUST set TESTDIR before calling those functions
  25 function run_app()
  26 {
  27         $TESTAPP_BIN -i $NUM_EVENT
  28         ok $? "Application done"
  29 }
  30
  31 function test_ns()
  32 {
  33         local ns=$1
  34
  35         local session_name="${ns}_ns"
  36         local chan_name="${ns}_ns"
  37         local context_name="${ns}_ns"
  38         local trace_path
  39         local ns_inode
  40
  41         # Check if the kernel has support for this ns type
  42         if [ ! -f "/proc/$$/ns/$ns" ]; then
  43                 skip 0 "System has no $ns namespace support" $TESTS_PER_NS
  44                 return
  45         fi
  46
  47         trace_path=$(mktemp --tmpdir -d -t "tmp.${FUNCNAME[0]}_trace_path.XXXXXX")
  48
  49         # Get the current ns inode number
  50         ns_inode=$(stat -c '%i' -L "/proc/$$/ns/$ns")
  51         ok $? "Get current $ns namespace inode: $ns_inode"
  52
  53         start_lttng_sessiond
  54
  55         create_lttng_session_ok "$session_name" "$trace_path"
  56         enable_ust_lttng_channel_ok "$session_name" "$chan_name"
  57         add_context_ust_ok "$session_name" "$chan_name" "$context_name"
  58         enable_ust_lttng_event_ok "$session_name" "$EVENT_NAME" "$chan_name"
  59         start_lttng_tracing_ok "$session_name"
  60
  61         run_app
  62
  63         # stop and destroy
  64         stop_lttng_tracing_ok "$session_name"
  65         destroy_lttng_session_ok "$session_name"
  66         stop_lttng_sessiond
  67
  68         # Check that the events contain the right namespace inode number
  69         validate_trace_count "${ns}_ns = $ns_inode" "$trace_path" $NUM_EVENT
  70
  71         rm -rf "$trace_path"
  72 }
  73
  74
  75 plan_tests $NUM_TESTS
  76
  77 print_test_banner "$TEST_DESC"
  78
  79 system_has_ns=0
  80 if [ -d "/proc/$$/ns" ]; then
  81         system_has_ns=1
  82 fi
  83
  84 skip $system_has_ns "System does not support namespaces" $NUM_TESTS && exit 0
  85
  86 test_ns cgroup
  87 test_ns ipc
  88 test_ns mnt
  89 test_ns net
  90 test_ns pid
  91 test_ns time
  92 test_ns user
  93 test_ns uts