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11f9a85f JR |
1 | #!/bin/bash |
2 | # | |
3 | # Copyright (C) - 2018 Jonathan Rajotte <jonathan.rajotte-julien@efficios.com> | |
4 | # | |
5 | # This library is free software; you can redistribute it and/or modify it under | |
6 | # the terms of the GNU Lesser General Public License as published by the Free | |
7 | # Software Foundation; version 2.1 of the License. | |
8 | # | |
9 | # This library is distributed in the hope that it will be useful, but WITHOUT | |
10 | # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS | |
11 | # FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more | |
12 | # details. | |
13 | # | |
14 | # You should have received a copy of the GNU Lesser General Public License | |
15 | # along with this library; if not, write to the Free Software Foundation, Inc., | |
16 | # 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | |
17 | ||
18 | TEST_DESC="Change working directory of process" | |
19 | ||
b6df17eb | 20 | CURDIR=$(dirname "$0")/ |
11f9a85f JR |
21 | TESTDIR=$CURDIR/../../../ |
22 | ||
b6df17eb | 23 | DIR=$(readlink -f "$TESTDIR") |
11f9a85f | 24 | |
b6df17eb | 25 | NUM_TESTS=35 |
11f9a85f JR |
26 | |
27 | source $TESTDIR/utils/utils.sh | |
28 | ||
11f9a85f JR |
29 | #MUST set TESTDIR before calling those functions |
30 | plan_tests $NUM_TESTS | |
31 | ||
32 | print_test_banner "$TEST_DESC" | |
33 | function test_relayd() | |
34 | { | |
11f9a85f | 35 | local relayd_bin_path="$DIR/../src/bin/lttng-relayd/$RELAYD_BIN" |
b6df17eb JR |
36 | local working_dir |
37 | local pid | |
38 | local cwd | |
39 | ||
f108e23f | 40 | working_dir=$(realpath "$(mktemp -d)") |
11f9a85f JR |
41 | |
42 | diag "Test lttng-relayd normal mode change working directory" | |
43 | ||
44 | # There is no rendez-vous mechanism that can guarantee the good timing | |
45 | # to check if the workdir directory was changed. | |
46 | # In the case of lttng-sessiond this would be achieved using the | |
47 | # --sig-parent option but lttng-relayd does not have this feature yet. | |
48 | # Fall back on using polling of the value and unblock when the value is | |
49 | # the one we expect. In case of a failure the test will hang. | |
b6df17eb JR |
50 | $relayd_bin_path --working-directory "$working_dir" > /dev/null 2>&1 & |
51 | pid=$! | |
11f9a85f JR |
52 | |
53 | while true; do | |
b6df17eb JR |
54 | cwd=$(readlink "/proc/${pid}/cwd") |
55 | if test "$working_dir" = "$cwd"; then | |
11f9a85f JR |
56 | # Working dir for process is valid |
57 | break | |
58 | fi | |
59 | sleep 0.1 | |
60 | done | |
61 | ||
62 | # If we are here the test passed | |
63 | pass "Working directory changed" | |
64 | ||
ef895a18 | 65 | RELAYD_PIDS=$pid |
11f9a85f | 66 | stop_lttng_relayd |
b6df17eb | 67 | rm -rf "$working_dir" |
11f9a85f JR |
68 | } |
69 | ||
70 | function test_relayd_daemon() | |
71 | { | |
b6df17eb JR |
72 | local working_dir |
73 | local cwd | |
74 | local pid | |
75 | ||
f108e23f | 76 | working_dir=$(realpath "$(mktemp -d)") |
11f9a85f JR |
77 | |
78 | diag "Test lttng-relayd daemon mode change working directory" | |
79 | ||
80 | start_lttng_relayd_opt 1 "-d" "--working-directory $working_dir" | |
81 | ||
b6df17eb JR |
82 | pid=$(pgrep "$RELAYD_MATCH") |
83 | ok $? "Found lttng-relayd" | |
84 | ||
85 | cwd=$(readlink "/proc/${pid}/cwd") | |
11f9a85f | 86 | |
b6df17eb | 87 | is "$cwd" "$working_dir" "Working directory changed" |
11f9a85f | 88 | |
ef895a18 | 89 | RELAYD_PIDS=$pid |
11f9a85f | 90 | stop_lttng_relayd |
b6df17eb | 91 | rm -rf "$working_dir" |
11f9a85f JR |
92 | } |
93 | ||
94 | function test_relayd_daemon_no_working_dir() | |
95 | { | |
96 | local expected_working_dir="/" | |
b6df17eb JR |
97 | local cwd |
98 | local pid | |
11f9a85f JR |
99 | |
100 | diag "Test lttng-relayd daemon mode change working directory" | |
101 | ||
102 | start_lttng_relayd_opt 1 "-d" "" | |
103 | ||
b6df17eb JR |
104 | pid=$(pgrep "$RELAYD_MATCH") |
105 | ok $? "Found lttng-relayd" | |
11f9a85f | 106 | |
b6df17eb JR |
107 | cwd=$(readlink "/proc/${pid}/cwd") |
108 | ||
109 | is "$cwd" "$expected_working_dir" "Working directory is $expected_working_dir" | |
11f9a85f | 110 | |
ef895a18 | 111 | RELAYD_PIDS=$pid |
11f9a85f | 112 | stop_lttng_relayd |
b6df17eb | 113 | rm -rf "$working_dir" |
11f9a85f JR |
114 | } |
115 | ||
116 | function test_relayd_background() | |
117 | { | |
b6df17eb JR |
118 | local working_dir |
119 | local cwd | |
120 | local pid | |
121 | ||
f108e23f | 122 | working_dir=$(realpath "$(mktemp -d)") |
11f9a85f JR |
123 | |
124 | diag "Test lttng-relayd background mode change working directory" | |
125 | ||
126 | start_lttng_relayd_opt 1 "-b" "--working-directory $working_dir" | |
127 | ||
b6df17eb JR |
128 | pid=$(pgrep "$RELAYD_MATCH") |
129 | ok $? "Found lttng-relayd" | |
11f9a85f | 130 | |
b6df17eb JR |
131 | cwd=$(readlink "/proc/${pid}/cwd") |
132 | ||
133 | is "$cwd" "$working_dir" "Working directory changed" | |
11f9a85f | 134 | |
ef895a18 | 135 | RELAYD_PIDS=$pid |
11f9a85f | 136 | stop_lttng_relayd |
b6df17eb | 137 | rm -rf "$working_dir" |
11f9a85f JR |
138 | } |
139 | ||
140 | function test_relayd_background_no_working_dir() | |
141 | { | |
142 | local expected_working_dir="/" | |
b6df17eb JR |
143 | local cwd |
144 | local pid | |
145 | ||
11f9a85f JR |
146 | diag "Test lttng-relayd background working directory" |
147 | ||
148 | start_lttng_relayd_opt 1 "-b" "" | |
149 | ||
b6df17eb JR |
150 | pid=$(pgrep "$RELAYD_MATCH") |
151 | ok $? "Found lttng-relayd" | |
11f9a85f | 152 | |
b6df17eb JR |
153 | cwd=$(readlink "/proc/${pid}/cwd") |
154 | ||
155 | is "$cwd" "$expected_working_dir" "Working directory is $expected_working_dir" | |
11f9a85f | 156 | |
ef895a18 | 157 | RELAYD_PIDS=$pid |
11f9a85f | 158 | stop_lttng_relayd |
b6df17eb | 159 | rm -rf "$working_dir" |
11f9a85f JR |
160 | } |
161 | ||
162 | function test_relayd_debug_permission() | |
163 | { | |
50bb83e4 | 164 | local is_user |
11f9a85f JR |
165 | |
166 | diag "Test lttng-relayd change working directory on non writable directory" | |
167 | ||
50bb83e4 JG |
168 | if [ "$(id -u)" == "0" ]; then |
169 | is_user=0 | |
170 | else | |
171 | is_user=1 | |
172 | fi | |
11f9a85f | 173 | |
50bb83e4 JG |
174 | skip $is_user "Skipping permission debug output test; operation can't fail as root" 6 || |
175 | { | |
ef895a18 | 176 | local output_pattern='Working directory is not writable' |
50bb83e4 JG |
177 | local working_dir |
178 | local cwd | |
179 | local pid | |
11f9a85f | 180 | |
50bb83e4 | 181 | working_dir=$(realpath "$(mktemp -d)") |
11f9a85f | 182 | |
50bb83e4 JG |
183 | # Removing write access to working dir |
184 | okx chmod -w "$working_dir" | |
b6df17eb | 185 | |
50bb83e4 | 186 | # Redirect the error output to a temporary file |
11f9a85f | 187 | |
61db8e94 JG |
188 | ERROR_OUTPUT_DEST=$(mktemp) |
189 | start_lttng_relayd_opt 1 "-b" "-v --working-dir $working_dir" | |
50bb83e4 JG |
190 | |
191 | pid=$(pgrep "$RELAYD_MATCH") | |
192 | ok $? "Found lttng-relayd" | |
193 | ||
194 | cwd=$(readlink "/proc/${pid}/cwd") | |
195 | is "$cwd" "$working_dir" "Working directory changed" | |
196 | ||
197 | grep -q "$output_pattern" "$ERROR_OUTPUT_DEST" | |
198 | ok $? "Warning about missing write permission is present" | |
199 | ||
ef895a18 | 200 | RELAYD_PIDS=$pid |
50bb83e4 JG |
201 | stop_lttng_relayd |
202 | rm "$ERROR_OUTPUT_DEST" | |
203 | rm -rf "$working_dir" "$ERROR_OUTPUT_DEST" | |
204 | ERROR_OUTPUT_DEST=/dev/null | |
205 | } | |
11f9a85f JR |
206 | } |
207 | ||
208 | function test_relayd_failure() | |
209 | { | |
ef895a18 | 210 | local output_pattern='Failed to change working directory' |
11f9a85f JR |
211 | local relayd_bin_path="$DIR/../src/bin/lttng-relayd/$RELAYD_BIN" |
212 | ||
b6df17eb JR |
213 | local working_dir |
214 | local working_dir_imaginary | |
215 | local output_dest | |
216 | local pid | |
217 | ||
f108e23f | 218 | working_dir=$(realpath "$(mktemp -d)") |
b6df17eb JR |
219 | working_dir_imaginary="${working_dir}/imaginary_directory" |
220 | output_dest=$(mktemp) | |
221 | ||
11f9a85f JR |
222 | diag "Test lttng-relayd normal mode change non-existing directory" |
223 | ||
b6df17eb | 224 | $relayd_bin_path -b --working-directory "$working_dir_imaginary" > "$output_dest" 2>&1 |
11f9a85f JR |
225 | test $? -eq "1" |
226 | ok $? "Expect failure to start lttng-relayd for non-existent working directory" | |
227 | ||
b6df17eb JR |
228 | pid=$(pgrep "$RELAYD_MATCH") |
229 | if [ -z "$pid" ]; then | |
11f9a85f JR |
230 | pass "No lttng-relayd present" |
231 | else | |
232 | fail "No lttng-relayd present" | |
ef895a18 | 233 | RELAYD_PIDS=$pid |
11f9a85f JR |
234 | stop_lttng_relayd_notap |
235 | fi | |
236 | ||
b6df17eb JR |
237 | grep -q "$output_pattern" "$output_dest" |
238 | ok $? "Found error message: invalid directory" | |
11f9a85f | 239 | |
b6df17eb JR |
240 | rm "$output_dest" |
241 | rm -rf "$working_dir" | |
11f9a85f JR |
242 | } |
243 | ||
c7cc870e JR |
244 | function test_relayd_env() |
245 | { | |
b6df17eb JR |
246 | local working_dir |
247 | local cwd | |
248 | local pid | |
249 | ||
250 | working_dir=$(mktemp -d) | |
f108e23f | 251 | working_dir=$(realpath "$(mktemp -d)") |
c7cc870e JR |
252 | |
253 | diag "Test lttng-relayd change working directory from env. variable" | |
254 | ||
255 | export LTTNG_RELAYD_WORKING_DIRECTORY=${working_dir} | |
256 | start_lttng_relayd_opt 1 "-b" "" | |
257 | ||
b6df17eb JR |
258 | pid=$(pgrep "$RELAYD_MATCH") |
259 | ok $? "Found lttng-relayd" | |
c7cc870e | 260 | |
b6df17eb JR |
261 | cwd=$(readlink "/proc/$pid/cwd") |
262 | ||
263 | is "$cwd" "$working_dir" "Working directory changed" | |
c7cc870e | 264 | |
ef895a18 | 265 | RELAYD_PIDS=$pid |
c7cc870e | 266 | stop_lttng_relayd |
b6df17eb | 267 | rm -rf "$working_dir" |
c7cc870e JR |
268 | unset LTTNG_RELAYD_WORKING_DIRECTORY |
269 | } | |
270 | ||
271 | function test_relayd_cmdline_overwrite_env() | |
272 | { | |
b6df17eb JR |
273 | local working_dir_env |
274 | local working_dir_cmdline | |
275 | local cwd | |
276 | local pid | |
277 | ||
f108e23f JR |
278 | working_dir_env=$(realpath "$(mktemp -d)") |
279 | working_dir_cmdline=$(realpath "$(mktemp -d)") | |
c7cc870e JR |
280 | |
281 | diag "Test lttng-relayd change working directory command line overwrite env variable" | |
282 | ||
283 | export LTTNG_RELAYD_WORKING_DIRECTORY=${working_dir_env} | |
284 | start_lttng_relayd_opt 1 "-b" "--working-dir ${working_dir_cmdline}" | |
285 | ||
b6df17eb JR |
286 | pid=$(pgrep "$RELAYD_MATCH") |
287 | ok $? "Found lttng-relayd" | |
c7cc870e | 288 | |
b6df17eb JR |
289 | cwd=$(readlink "/proc/$pid/cwd") |
290 | ||
291 | is "$cwd" "$working_dir_cmdline" "Working directory is the one from command line" | |
c7cc870e | 292 | |
ef895a18 | 293 | RELAYD_PIDS=$pid |
c7cc870e | 294 | stop_lttng_relayd |
b6df17eb | 295 | rm -rf "$working_dir_env" "$working_dir_cmdline" |
c7cc870e JR |
296 | unset LTTNG_RELAYD_WORKING_DIRECTORY |
297 | } | |
b6df17eb | 298 | |
11f9a85f JR |
299 | TESTS=( |
300 | test_relayd | |
301 | test_relayd_daemon | |
302 | test_relayd_daemon_no_working_dir | |
303 | test_relayd_background | |
304 | test_relayd_background_no_working_dir | |
305 | test_relayd_debug_permission | |
306 | test_relayd_failure | |
c7cc870e JR |
307 | test_relayd_env |
308 | test_relayd_cmdline_overwrite_env | |
11f9a85f JR |
309 | ) |
310 | ||
b6df17eb | 311 | for fct_test in "${TESTS[@]}"; |
11f9a85f | 312 | do |
b6df17eb | 313 | if ! ${fct_test}; then |
11f9a85f JR |
314 | break; |
315 | fi | |
316 | done |