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f3630ec4 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 | ||
20 | CURDIR=$(dirname "$0")/ | |
21 | TESTDIR=$CURDIR/../../../ | |
22 | ||
23 | DIR=$(readlink -f "$TESTDIR") | |
24 | ||
25 | NUM_TESTS=27 | |
26 | ||
27 | source $TESTDIR/utils/utils.sh | |
28 | ||
29 | ||
30 | #MUST set TESTDIR before calling those functions | |
31 | plan_tests $NUM_TESTS | |
32 | ||
33 | print_test_banner "$TEST_DESC" | |
34 | function test_relayd() | |
35 | { | |
36 | local relayd_bin_path="$DIR/../src/bin/lttng-relayd/$RELAYD_BIN" | |
37 | local working_dir | |
38 | local pid | |
39 | local cwd | |
40 | ||
41 | working_dir=$(mktemp -d) | |
42 | ||
43 | diag "Test lttng-relayd normal mode change working directory" | |
44 | ||
45 | # There is no rendez-vous mechanism that can guarantee the good timing | |
46 | # to check if the workdir directory was changed. | |
47 | # In the case of lttng-sessiond this would be achieved using the | |
48 | # --sig-parent option but lttng-relayd does not have this feature yet. | |
49 | # Fall back on using polling of the value and unblock when the value is | |
50 | # the one we expect. In case of a failure the test will hang. | |
51 | $relayd_bin_path --working-directory "$working_dir" > /dev/null 2>&1 & | |
52 | pid=$! | |
53 | ||
54 | while true; do | |
55 | cwd=$(readlink "/proc/${pid}/cwd") | |
56 | if test "$working_dir" = "$cwd"; then | |
57 | # Working dir for process is valid | |
58 | break | |
59 | fi | |
60 | sleep 0.1 | |
61 | done | |
62 | ||
63 | # If we are here the test passed | |
64 | pass "Working directory changed" | |
65 | ||
66 | stop_lttng_relayd | |
67 | rm -rf "$working_dir" | |
68 | } | |
69 | ||
70 | function test_relayd_daemon() | |
71 | { | |
72 | local working_dir | |
73 | local cwd | |
74 | local pid | |
75 | ||
76 | working_dir=$(mktemp -d) | |
77 | ||
78 | diag "Test lttng-relayd daemon mode change working directory" | |
79 | ||
80 | start_lttng_relayd_opt 1 "-d" "--working-directory $working_dir" | |
81 | ||
82 | pid=$(pgrep "$RELAYD_MATCH") | |
83 | ok $? "Found lttng-relayd" | |
84 | ||
85 | cwd=$(readlink "/proc/${pid}/cwd") | |
86 | ||
87 | is "$cwd" "$working_dir" "Working directory changed" | |
88 | ||
89 | stop_lttng_relayd | |
90 | rm -rf "$working_dir" | |
91 | } | |
92 | ||
93 | function test_relayd_daemon_no_working_dir() | |
94 | { | |
95 | local expected_working_dir="/" | |
96 | local cwd | |
97 | local pid | |
98 | ||
99 | diag "Test lttng-relayd daemon mode change working directory" | |
100 | ||
101 | start_lttng_relayd_opt 1 "-d" "" | |
102 | ||
103 | pid=$(pgrep "$RELAYD_MATCH") | |
104 | ok $? "Found lttng-relayd" | |
105 | ||
106 | cwd=$(readlink "/proc/${pid}/cwd") | |
107 | ||
108 | is "$cwd" "$expected_working_dir" "Working directory is $expected_working_dir" | |
109 | ||
110 | stop_lttng_relayd | |
111 | rm -rf "$working_dir" | |
112 | } | |
113 | ||
114 | function test_relayd_background() | |
115 | { | |
116 | local working_dir | |
117 | local cwd | |
118 | local pid | |
119 | ||
120 | working_dir=$(mktemp -d) | |
121 | ||
122 | diag "Test lttng-relayd background mode change working directory" | |
123 | ||
124 | start_lttng_relayd_opt 1 "-b" "--working-directory $working_dir" | |
125 | ||
126 | pid=$(pgrep "$RELAYD_MATCH") | |
127 | ok $? "Found lttng-relayd" | |
128 | ||
129 | cwd=$(readlink "/proc/${pid}/cwd") | |
130 | ||
131 | is "$cwd" "$working_dir" "Working directory changed" | |
132 | ||
133 | stop_lttng_relayd | |
134 | rm -rf "$working_dir" | |
135 | } | |
136 | ||
137 | function test_relayd_background_no_working_dir() | |
138 | { | |
139 | local expected_working_dir="/" | |
140 | local cwd | |
141 | local pid | |
142 | ||
143 | diag "Test lttng-relayd background working directory" | |
144 | ||
145 | start_lttng_relayd_opt 1 "-b" "" | |
146 | ||
147 | pid=$(pgrep "$RELAYD_MATCH") | |
148 | ok $? "Found lttng-relayd" | |
149 | ||
150 | cwd=$(readlink "/proc/${pid}/cwd") | |
151 | ||
152 | is "$cwd" "$expected_working_dir" "Working directory is $expected_working_dir" | |
153 | ||
154 | stop_lttng_relayd | |
155 | rm -rf "$working_dir" | |
156 | } | |
157 | ||
158 | function test_relayd_debug_permission() | |
159 | { | |
160 | local output_pattern='Working directory \".*\" is not writable' | |
161 | local working_dir | |
162 | local cwd | |
163 | local pid | |
164 | ||
165 | working_dir=$(mktemp -d) | |
166 | ||
167 | diag "Test lttng-relayd change working directory on non writable directory" | |
168 | ||
169 | # Removing write access to working dir | |
170 | okx chmod -w "$working_dir" | |
171 | ||
172 | # Redirect the error output to a temporary file | |
173 | ERROR_OUTPUT_DEST=$(mktemp) | |
174 | start_lttng_relayd_opt 1 "-b" "-v --working-dir $working_dir" | |
175 | ||
176 | pid=$(pgrep "$RELAYD_MATCH") | |
177 | ok $? "Found lttng-relayd" | |
178 | ||
179 | cwd=$(readlink "/proc/${pid}/cwd") | |
180 | is "$cwd" "$working_dir" "Working directory changed" | |
181 | ||
182 | grep -q "$output_pattern" "$ERROR_OUTPUT_DEST" | |
183 | ok $? "Warning about missing write permission is present" | |
184 | ||
185 | stop_lttng_relayd | |
186 | rm "$ERROR_OUTPUT_DEST" | |
187 | rm -rf "$working_dir" "$ERROR_OUTPUT_DEST" | |
188 | ERROR_OUTPUT_DEST=/dev/null | |
189 | } | |
190 | ||
191 | function 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 | ||
201 | working_dir="$(mktemp -d)" | |
202 | working_dir_imaginary="${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 "$working_dir" | |
224 | } | |
225 | ||
226 | TESTS=( | |
227 | test_relayd | |
228 | test_relayd_daemon | |
229 | test_relayd_daemon_no_working_dir | |
230 | test_relayd_background | |
231 | test_relayd_background_no_working_dir | |
232 | test_relayd_debug_permission | |
233 | test_relayd_failure | |
234 | ) | |
235 | ||
236 | for fct_test in "${TESTS[@]}"; | |
237 | do | |
238 | if ! ${fct_test}; then | |
239 | break; | |
240 | fi | |
241 | done |