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f3630ec4 JR |
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 |
f3630ec4 JR |
6 | |
7 | TEST_DESC="Change working directory of process" | |
8 | ||
9 | CURDIR=$(dirname "$0")/ | |
10 | TESTDIR=$CURDIR/../../../ | |
11 | ||
12 | DIR=$(readlink -f "$TESTDIR") | |
13 | ||
2a10de3b | 14 | NUM_TESTS=35 |
f3630ec4 JR |
15 | |
16 | source $TESTDIR/utils/utils.sh | |
17 | ||
f3630ec4 JR |
18 | #MUST set TESTDIR before calling those functions |
19 | plan_tests $NUM_TESTS | |
20 | ||
21 | print_test_banner "$TEST_DESC" | |
22 | function test_relayd() | |
23 | { | |
24 | local relayd_bin_path="$DIR/../src/bin/lttng-relayd/$RELAYD_BIN" | |
8d5a3312 | 25 | local working_dir=$(realpath "$(mktemp -d -t "tmp.${FUNCNAME[0]}_working_dir.XXXXXX")") |
f3630ec4 JR |
26 | local pid |
27 | local cwd | |
28 | ||
f3630ec4 JR |
29 | |
30 | diag "Test lttng-relayd normal mode change working directory" | |
31 | ||
32 | # There is no rendez-vous mechanism that can guarantee the good timing | |
33 | # to check if the workdir directory was changed. | |
34 | # In the case of lttng-sessiond this would be achieved using the | |
35 | # --sig-parent option but lttng-relayd does not have this feature yet. | |
36 | # Fall back on using polling of the value and unblock when the value is | |
37 | # the one we expect. In case of a failure the test will hang. | |
38 | $relayd_bin_path --working-directory "$working_dir" > /dev/null 2>&1 & | |
39 | pid=$! | |
40 | ||
41 | while true; do | |
42 | cwd=$(readlink "/proc/${pid}/cwd") | |
43 | if test "$working_dir" = "$cwd"; then | |
44 | # Working dir for process is valid | |
45 | break | |
46 | fi | |
47 | sleep 0.1 | |
48 | done | |
49 | ||
50 | # If we are here the test passed | |
51 | pass "Working directory changed" | |
52 | ||
53 | stop_lttng_relayd | |
54 | rm -rf "$working_dir" | |
55 | } | |
56 | ||
57 | function test_relayd_daemon() | |
58 | { | |
f3630ec4 JR |
59 | local cwd |
60 | local pid | |
8d5a3312 | 61 | local working_dir=$(realpath "$(mktemp -d -t "tmp.${FUNCNAME[0]}_working_dir.XXXXXX")") |
f3630ec4 JR |
62 | |
63 | diag "Test lttng-relayd daemon mode change working directory" | |
64 | ||
65 | start_lttng_relayd_opt 1 "-d" "--working-directory $working_dir" | |
66 | ||
7cb78e2f | 67 | pid=$(lttng_pgrep "$RELAYD_MATCH") |
f3630ec4 JR |
68 | ok $? "Found lttng-relayd" |
69 | ||
70 | cwd=$(readlink "/proc/${pid}/cwd") | |
71 | ||
72 | is "$cwd" "$working_dir" "Working directory changed" | |
73 | ||
74 | stop_lttng_relayd | |
75 | rm -rf "$working_dir" | |
76 | } | |
77 | ||
78 | function test_relayd_daemon_no_working_dir() | |
79 | { | |
80 | local expected_working_dir="/" | |
81 | local cwd | |
82 | local pid | |
83 | ||
84 | diag "Test lttng-relayd daemon mode change working directory" | |
85 | ||
86 | start_lttng_relayd_opt 1 "-d" "" | |
87 | ||
7cb78e2f | 88 | pid=$(lttng_pgrep "$RELAYD_MATCH") |
f3630ec4 JR |
89 | ok $? "Found lttng-relayd" |
90 | ||
91 | cwd=$(readlink "/proc/${pid}/cwd") | |
92 | ||
93 | is "$cwd" "$expected_working_dir" "Working directory is $expected_working_dir" | |
94 | ||
95 | stop_lttng_relayd | |
96 | rm -rf "$working_dir" | |
97 | } | |
98 | ||
99 | function test_relayd_background() | |
100 | { | |
f3630ec4 JR |
101 | local cwd |
102 | local pid | |
8d5a3312 | 103 | local working_dir=$(realpath "$(mktemp -d -t "tmp.${FUNCNAME[0]}_working_dir.XXXXXX")") |
f3630ec4 JR |
104 | |
105 | diag "Test lttng-relayd background mode change working directory" | |
106 | ||
107 | start_lttng_relayd_opt 1 "-b" "--working-directory $working_dir" | |
108 | ||
7cb78e2f | 109 | pid=$(lttng_pgrep "$RELAYD_MATCH") |
f3630ec4 JR |
110 | ok $? "Found lttng-relayd" |
111 | ||
112 | cwd=$(readlink "/proc/${pid}/cwd") | |
113 | ||
114 | is "$cwd" "$working_dir" "Working directory changed" | |
115 | ||
116 | stop_lttng_relayd | |
117 | rm -rf "$working_dir" | |
118 | } | |
119 | ||
120 | function test_relayd_background_no_working_dir() | |
121 | { | |
122 | local expected_working_dir="/" | |
123 | local cwd | |
124 | local pid | |
125 | ||
126 | diag "Test lttng-relayd background working directory" | |
127 | ||
128 | start_lttng_relayd_opt 1 "-b" "" | |
129 | ||
7cb78e2f | 130 | pid=$(lttng_pgrep "$RELAYD_MATCH") |
f3630ec4 JR |
131 | ok $? "Found lttng-relayd" |
132 | ||
133 | cwd=$(readlink "/proc/${pid}/cwd") | |
134 | ||
135 | is "$cwd" "$expected_working_dir" "Working directory is $expected_working_dir" | |
136 | ||
137 | stop_lttng_relayd | |
138 | rm -rf "$working_dir" | |
139 | } | |
140 | ||
141 | function test_relayd_debug_permission() | |
142 | { | |
15da468c | 143 | local is_user |
f3630ec4 JR |
144 | |
145 | diag "Test lttng-relayd change working directory on non writable directory" | |
146 | ||
15da468c | 147 | if [ "$(id -u)" == "0" ]; then |
3a174400 | 148 | is_user=0 |
15da468c | 149 | else |
3a174400 | 150 | is_user=1 |
15da468c | 151 | fi |
f3630ec4 | 152 | |
15da468c JG |
153 | skip $is_user "Skipping permission debug output test; operation can't fail as root" 6 || |
154 | { | |
155 | local output_pattern='Working directory \".*\" is not writable' | |
15da468c JG |
156 | local cwd |
157 | local pid | |
8d5a3312 | 158 | local working_dir=$(realpath "$(mktemp -d -t "tmp.${FUNCNAME[0]}_working_dir.XXXXXX")") |
f3630ec4 | 159 | |
15da468c JG |
160 | # Removing write access to working dir |
161 | okx chmod -w "$working_dir" | |
f3630ec4 | 162 | |
15da468c | 163 | # Redirect the error output to a temporary file |
f3630ec4 | 164 | |
b445e3da | 165 | RELAYD_ERROR_OUTPUT_DEST=$(mktemp -t "tmp.${FUNCNAME[0]}_error_output.XXXXXX") |
e7b7a0e3 | 166 | start_lttng_relayd_opt 1 "-b" "-v --working-dir $working_dir" |
15da468c | 167 | |
7cb78e2f | 168 | pid=$(lttng_pgrep "$RELAYD_MATCH") |
15da468c JG |
169 | ok $? "Found lttng-relayd" |
170 | ||
171 | cwd=$(readlink "/proc/${pid}/cwd") | |
172 | is "$cwd" "$working_dir" "Working directory changed" | |
173 | ||
b445e3da | 174 | grep -q "$output_pattern" "${RELAYD_ERROR_OUTPUT_DEST}" |
15da468c JG |
175 | ok $? "Warning about missing write permission is present" |
176 | ||
177 | stop_lttng_relayd | |
b445e3da KS |
178 | rm "${RELAYD_ERROR_OUTPUT_DEST}" |
179 | rm -rf "$working_dir" "${RELAYD_ERROR_OUTPUT_DEST}" | |
180 | unset RELAYD_ERROR_OUTPUT_DEST | |
15da468c | 181 | } |
f3630ec4 JR |
182 | } |
183 | ||
184 | function test_relayd_failure() | |
185 | { | |
186 | local output_pattern='Failed to change working directory to' | |
187 | local relayd_bin_path="$DIR/../src/bin/lttng-relayd/$RELAYD_BIN" | |
8d5a3312 MJ |
188 | local working_dir=$(realpath "$(mktemp -d -t "tmp.${FUNCNAME[0]}_working_dir.XXXXXX")") |
189 | local output_dest=$(mktemp -t "tmp.${FUNCNAME[0]}_working_dir.XXXXXX") | |
f3630ec4 | 190 | |
f3630ec4 | 191 | local working_dir_imaginary |
f3630ec4 JR |
192 | local pid |
193 | ||
f3630ec4 | 194 | working_dir_imaginary="${working_dir}/imaginary_directory" |
f3630ec4 JR |
195 | |
196 | diag "Test lttng-relayd normal mode change non-existing directory" | |
197 | ||
198 | $relayd_bin_path -b --working-directory "$working_dir_imaginary" > "$output_dest" 2>&1 | |
199 | test $? -eq "1" | |
200 | ok $? "Expect failure to start lttng-relayd for non-existent working directory" | |
201 | ||
7cb78e2f | 202 | pid=$(lttng_pgrep "$RELAYD_MATCH") |
f3630ec4 JR |
203 | if [ -z "$pid" ]; then |
204 | pass "No lttng-relayd present" | |
205 | else | |
206 | fail "No lttng-relayd present" | |
207 | stop_lttng_relayd_notap | |
208 | fi | |
209 | ||
210 | grep -q "$output_pattern" "$output_dest" | |
211 | ok $? "Found error message: invalid directory" | |
212 | ||
213 | rm "$output_dest" | |
214 | rm -rf "$working_dir" | |
215 | } | |
216 | ||
2a10de3b JR |
217 | function test_relayd_env() |
218 | { | |
2a10de3b JR |
219 | local cwd |
220 | local pid | |
8d5a3312 | 221 | local working_dir=$(realpath "$(mktemp -d -t "tmp.${FUNCNAME[0]}_working_dir.XXXXXX")") |
2a10de3b JR |
222 | |
223 | diag "Test lttng-relayd change working directory from env. variable" | |
224 | ||
225 | export LTTNG_RELAYD_WORKING_DIRECTORY=${working_dir} | |
226 | start_lttng_relayd_opt 1 "-b" "" | |
227 | ||
7cb78e2f | 228 | pid=$(lttng_pgrep "$RELAYD_MATCH") |
2a10de3b JR |
229 | ok $? "Found lttng-relayd" |
230 | ||
231 | cwd=$(readlink "/proc/$pid/cwd") | |
232 | ||
233 | is "$cwd" "$working_dir" "Working directory changed" | |
234 | ||
235 | stop_lttng_relayd | |
236 | rm -rf "$working_dir" | |
237 | unset LTTNG_RELAYD_WORKING_DIRECTORY | |
238 | } | |
239 | ||
240 | function test_relayd_cmdline_overwrite_env() | |
241 | { | |
2a10de3b JR |
242 | local cwd |
243 | local pid | |
8d5a3312 MJ |
244 | local working_dir_env=$(realpath "$(mktemp -d -t "tmp.${FUNCNAME[0]}_working_dir_even.XXXXXX")") |
245 | local working_dir_cmdline=$(realpath "$(mktemp -d -t "tmp.${FUNCNAME[0]}_working_dir_cmdline.XXXXXX")") | |
2a10de3b JR |
246 | |
247 | diag "Test lttng-relayd change working directory command line overwrite env variable" | |
248 | ||
249 | export LTTNG_RELAYD_WORKING_DIRECTORY=${working_dir_env} | |
250 | start_lttng_relayd_opt 1 "-b" "--working-dir ${working_dir_cmdline}" | |
251 | ||
7cb78e2f | 252 | pid=$(lttng_pgrep "$RELAYD_MATCH") |
2a10de3b JR |
253 | ok $? "Found lttng-relayd" |
254 | ||
255 | cwd=$(readlink "/proc/$pid/cwd") | |
256 | ||
257 | is "$cwd" "$working_dir_cmdline" "Working directory is the one from command line" | |
258 | ||
259 | stop_lttng_relayd | |
260 | rm -rf "$working_dir_env" "$working_dir_cmdline" | |
261 | unset LTTNG_RELAYD_WORKING_DIRECTORY | |
262 | } | |
263 | ||
f3630ec4 JR |
264 | TESTS=( |
265 | test_relayd | |
266 | test_relayd_daemon | |
267 | test_relayd_daemon_no_working_dir | |
268 | test_relayd_background | |
269 | test_relayd_background_no_working_dir | |
270 | test_relayd_debug_permission | |
271 | test_relayd_failure | |
2a10de3b JR |
272 | test_relayd_env |
273 | test_relayd_cmdline_overwrite_env | |
f3630ec4 JR |
274 | ) |
275 | ||
276 | for fct_test in "${TESTS[@]}"; | |
277 | do | |
278 | if ! ${fct_test}; then | |
279 | break; | |
280 | fi | |
281 | done |