Tests: fix: test_relayd_working_directory fails as user
[lttng-tools.git] / tests / regression / tools / working-directory / test_relayd_working_directory
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1#!/bin/bash
2#
9d16b343 3# Copyright (C) 2018 Jonathan Rajotte <jonathan.rajotte-julien@efficios.com>
f3630ec4 4#
9d16b343 5# SPDX-License-Identifier: LGPL-2.1-only
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6
7TEST_DESC="Change working directory of process"
8
9CURDIR=$(dirname "$0")/
10TESTDIR=$CURDIR/../../../
11
12DIR=$(readlink -f "$TESTDIR")
13
2a10de3b 14NUM_TESTS=35
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15
16source $TESTDIR/utils/utils.sh
17
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18#MUST set TESTDIR before calling those functions
19plan_tests $NUM_TESTS
20
21print_test_banner "$TEST_DESC"
22function test_relayd()
23{
24 local relayd_bin_path="$DIR/../src/bin/lttng-relayd/$RELAYD_BIN"
25 local working_dir
26 local pid
27 local cwd
28
b2f4c4fa 29 working_dir=$(realpath "$(mktemp -d)")
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30
31 diag "Test lttng-relayd normal mode change working directory"
32
33 # There is no rendez-vous mechanism that can guarantee the good timing
34 # to check if the workdir directory was changed.
35 # In the case of lttng-sessiond this would be achieved using the
36 # --sig-parent option but lttng-relayd does not have this feature yet.
37 # Fall back on using polling of the value and unblock when the value is
38 # the one we expect. In case of a failure the test will hang.
39 $relayd_bin_path --working-directory "$working_dir" > /dev/null 2>&1 &
40 pid=$!
41
42 while true; do
43 cwd=$(readlink "/proc/${pid}/cwd")
44 if test "$working_dir" = "$cwd"; then
45 # Working dir for process is valid
46 break
47 fi
48 sleep 0.1
49 done
50
51 # If we are here the test passed
52 pass "Working directory changed"
53
54 stop_lttng_relayd
55 rm -rf "$working_dir"
56}
57
58function test_relayd_daemon()
59{
60 local working_dir
61 local cwd
62 local pid
63
b2f4c4fa 64 working_dir=$(realpath "$(mktemp -d)")
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65
66 diag "Test lttng-relayd daemon mode change working directory"
67
68 start_lttng_relayd_opt 1 "-d" "--working-directory $working_dir"
69
70 pid=$(pgrep "$RELAYD_MATCH")
71 ok $? "Found lttng-relayd"
72
73 cwd=$(readlink "/proc/${pid}/cwd")
74
75 is "$cwd" "$working_dir" "Working directory changed"
76
77 stop_lttng_relayd
78 rm -rf "$working_dir"
79}
80
81function test_relayd_daemon_no_working_dir()
82{
83 local expected_working_dir="/"
84 local cwd
85 local pid
86
87 diag "Test lttng-relayd daemon mode change working directory"
88
89 start_lttng_relayd_opt 1 "-d" ""
90
91 pid=$(pgrep "$RELAYD_MATCH")
92 ok $? "Found lttng-relayd"
93
94 cwd=$(readlink "/proc/${pid}/cwd")
95
96 is "$cwd" "$expected_working_dir" "Working directory is $expected_working_dir"
97
98 stop_lttng_relayd
99 rm -rf "$working_dir"
100}
101
102function test_relayd_background()
103{
104 local working_dir
105 local cwd
106 local pid
107
b2f4c4fa 108 working_dir=$(realpath "$(mktemp -d)")
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109
110 diag "Test lttng-relayd background mode change working directory"
111
112 start_lttng_relayd_opt 1 "-b" "--working-directory $working_dir"
113
114 pid=$(pgrep "$RELAYD_MATCH")
115 ok $? "Found lttng-relayd"
116
117 cwd=$(readlink "/proc/${pid}/cwd")
118
119 is "$cwd" "$working_dir" "Working directory changed"
120
121 stop_lttng_relayd
122 rm -rf "$working_dir"
123}
124
125function test_relayd_background_no_working_dir()
126{
127 local expected_working_dir="/"
128 local cwd
129 local pid
130
131 diag "Test lttng-relayd background working directory"
132
133 start_lttng_relayd_opt 1 "-b" ""
134
135 pid=$(pgrep "$RELAYD_MATCH")
136 ok $? "Found lttng-relayd"
137
138 cwd=$(readlink "/proc/${pid}/cwd")
139
140 is "$cwd" "$expected_working_dir" "Working directory is $expected_working_dir"
141
142 stop_lttng_relayd
143 rm -rf "$working_dir"
144}
145
146function test_relayd_debug_permission()
147{
15da468c 148 local is_user
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149
150 diag "Test lttng-relayd change working directory on non writable directory"
151
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152 if [ "$(id -u)" == "0" ]; then
153 is_user=0
154 else
155 is_user=1
156 fi
f3630ec4 157
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158 skip $is_user "Skipping permission debug output test; operation can't fail as root" 6 ||
159 {
160 local output_pattern='Working directory \".*\" is not writable'
161 local working_dir
162 local cwd
163 local pid
f3630ec4 164
15da468c 165 working_dir=$(realpath "$(mktemp -d)")
f3630ec4 166
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167 # Removing write access to working dir
168 okx chmod -w "$working_dir"
f3630ec4 169
15da468c 170 # Redirect the error output to a temporary file
f3630ec4 171
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172 ERROR_OUTPUT_DEST=$(mktemp)
173 start_lttng_relayd_opt 1 "-b" "-v --working-dir $working_dir"
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174
175 pid=$(pgrep "$RELAYD_MATCH")
176 ok $? "Found lttng-relayd"
177
178 cwd=$(readlink "/proc/${pid}/cwd")
179 is "$cwd" "$working_dir" "Working directory changed"
180
181 grep -q "$output_pattern" "$ERROR_OUTPUT_DEST"
182 ok $? "Warning about missing write permission is present"
183
184 stop_lttng_relayd
185 rm "$ERROR_OUTPUT_DEST"
186 rm -rf "$working_dir" "$ERROR_OUTPUT_DEST"
187 ERROR_OUTPUT_DEST=/dev/null
188 }
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189}
190
191function test_relayd_failure()
192{
193 local output_pattern='Failed to change working directory to'
194 local relayd_bin_path="$DIR/../src/bin/lttng-relayd/$RELAYD_BIN"
195
196 local working_dir
197 local working_dir_imaginary
198 local output_dest
199 local pid
200
b2f4c4fa 201 working_dir=$(realpath "$(mktemp -d)")
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202 working_dir_imaginary="${working_dir}/imaginary_directory"
203 output_dest=$(mktemp)
204
205 diag "Test lttng-relayd normal mode change non-existing directory"
206
207 $relayd_bin_path -b --working-directory "$working_dir_imaginary" > "$output_dest" 2>&1
208 test $? -eq "1"
209 ok $? "Expect failure to start lttng-relayd for non-existent working directory"
210
211 pid=$(pgrep "$RELAYD_MATCH")
212 if [ -z "$pid" ]; then
213 pass "No lttng-relayd present"
214 else
215 fail "No lttng-relayd present"
216 stop_lttng_relayd_notap
217 fi
218
219 grep -q "$output_pattern" "$output_dest"
220 ok $? "Found error message: invalid directory"
221
222 rm "$output_dest"
223 rm -rf "$working_dir"
224}
225
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226function test_relayd_env()
227{
228 local working_dir
229 local cwd
230 local pid
231
232 working_dir=$(mktemp -d)
b2f4c4fa 233 working_dir=$(realpath "$(mktemp -d)")
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234
235 diag "Test lttng-relayd change working directory from env. variable"
236
237 export LTTNG_RELAYD_WORKING_DIRECTORY=${working_dir}
238 start_lttng_relayd_opt 1 "-b" ""
239
240 pid=$(pgrep "$RELAYD_MATCH")
241 ok $? "Found lttng-relayd"
242
243 cwd=$(readlink "/proc/$pid/cwd")
244
245 is "$cwd" "$working_dir" "Working directory changed"
246
247 stop_lttng_relayd
248 rm -rf "$working_dir"
249 unset LTTNG_RELAYD_WORKING_DIRECTORY
250}
251
252function test_relayd_cmdline_overwrite_env()
253{
254 local working_dir_env
255 local working_dir_cmdline
256 local cwd
257 local pid
258
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259 working_dir_env=$(realpath "$(mktemp -d)")
260 working_dir_cmdline=$(realpath "$(mktemp -d)")
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261
262 diag "Test lttng-relayd change working directory command line overwrite env variable"
263
264 export LTTNG_RELAYD_WORKING_DIRECTORY=${working_dir_env}
265 start_lttng_relayd_opt 1 "-b" "--working-dir ${working_dir_cmdline}"
266
267 pid=$(pgrep "$RELAYD_MATCH")
268 ok $? "Found lttng-relayd"
269
270 cwd=$(readlink "/proc/$pid/cwd")
271
272 is "$cwd" "$working_dir_cmdline" "Working directory is the one from command line"
273
274 stop_lttng_relayd
275 rm -rf "$working_dir_env" "$working_dir_cmdline"
276 unset LTTNG_RELAYD_WORKING_DIRECTORY
277}
278
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279TESTS=(
280 test_relayd
281 test_relayd_daemon
282 test_relayd_daemon_no_working_dir
283 test_relayd_background
284 test_relayd_background_no_working_dir
285 test_relayd_debug_permission
286 test_relayd_failure
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287 test_relayd_env
288 test_relayd_cmdline_overwrite_env
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289)
290
291for fct_test in "${TESTS[@]}";
292do
293 if ! ${fct_test}; then
294 break;
295 fi
296done
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