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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 | ||
20 | CURDIR=$(dirname $0)/ | |
21 | TESTDIR=$CURDIR/../../../ | |
22 | ||
23 | DIR=$(readlink -f $TESTDIR) | |
24 | ||
25 | NUM_TESTS=22 | |
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 working_dir=$(mktemp -d) | |
37 | local test_dir=$(readlink -f $TESTDIR) | |
38 | local relayd_bin_path="$DIR/../src/bin/lttng-relayd/$RELAYD_BIN" | |
39 | ||
40 | diag "Test lttng-relayd normal mode change working directory" | |
41 | ||
42 | # There is no rendez-vous mechanism that can guarantee the good timing | |
43 | # to check if the workdir directory was changed. | |
44 | # In the case of lttng-sessiond this would be achieved using the | |
45 | # --sig-parent option but lttng-relayd does not have this feature yet. | |
46 | # Fall back on using polling of the value and unblock when the value is | |
47 | # the one we expect. In case of a failure the test will hang. | |
48 | $relayd_bin_path --working-directory $working_dir > /dev/null 2>&1 & | |
49 | RELAYD_PIDS=$! | |
50 | ||
51 | while true; do | |
52 | local cwd=$(readlink /proc/${RELAYD_PIDS}/cwd) | |
53 | test "${working_dir}" = "${cwd}" | |
54 | if [ $? -eq 0 ]; then | |
55 | # Working dir for process is valid | |
56 | break | |
57 | fi | |
58 | sleep 0.1 | |
59 | done | |
60 | ||
61 | # If we are here the test passed | |
62 | pass "Working directory changed" | |
63 | ||
64 | stop_lttng_relayd | |
65 | rm -rf ${working_dir} | |
66 | } | |
67 | ||
68 | function test_relayd_daemon() | |
69 | { | |
70 | local working_dir=$(mktemp -d) | |
71 | ||
72 | diag "Test lttng-relayd daemon mode change working directory" | |
73 | ||
74 | start_lttng_relayd_opt 1 "-d" "--working-directory $working_dir" | |
75 | ||
76 | local cwd=$(readlink /proc/${RELAYD_PIDS}/cwd) | |
77 | ||
78 | is "x${cwd}" "x${working_dir}" "Working directory changed" | |
79 | ||
80 | stop_lttng_relayd | |
81 | rm -rf ${working_dir} | |
82 | } | |
83 | ||
84 | function test_relayd_daemon_no_working_dir() | |
85 | { | |
86 | local expected_working_dir="/" | |
87 | ||
88 | diag "Test lttng-relayd daemon mode change working directory" | |
89 | ||
90 | start_lttng_relayd_opt 1 "-d" "" | |
91 | ||
92 | local cwd=$(readlink /proc/${RELAYD_PIDS}/cwd) | |
93 | ||
94 | is "x${cwd}" "x${expected_working_dir}" "Working directory is ${expected_working_dir}" | |
95 | ||
96 | stop_lttng_relayd | |
97 | rm -rf ${working_dir} | |
98 | } | |
99 | ||
100 | function test_relayd_background() | |
101 | { | |
102 | local working_dir=$(mktemp -d) | |
103 | ||
104 | diag "Test lttng-relayd background mode change working directory" | |
105 | ||
106 | start_lttng_relayd_opt 1 "-b" "--working-directory $working_dir" | |
107 | ||
108 | local cwd=$(readlink /proc/${RELAYD_PIDS}/cwd) | |
109 | ||
110 | is "x${cwd}" "x${working_dir}" "Working directory changed" | |
111 | ||
112 | stop_lttng_relayd | |
113 | rm -rf ${working_dir} | |
114 | } | |
115 | ||
116 | function test_relayd_background_no_working_dir() | |
117 | { | |
118 | local expected_working_dir="/" | |
119 | diag "Test lttng-relayd background working directory" | |
120 | ||
121 | start_lttng_relayd_opt 1 "-b" "" | |
122 | ||
123 | local cwd=$(readlink /proc/${RELAYD_PIDS}/cwd) | |
124 | ||
125 | is "x${cwd}" "x${expected_working_dir}" "Working directory is ${expected_working_dir}" | |
126 | ||
127 | stop_lttng_relayd | |
128 | rm -rf ${working_dir} | |
129 | } | |
130 | ||
131 | function test_relayd_debug_permission() | |
132 | { | |
133 | local working_dir=$(mktemp -d) | |
134 | local output_pattern='Working directory is not writable' | |
135 | ERROR_OUTPUT_DEST=$(mktemp -u) | |
136 | ||
137 | diag "Test lttng-relayd change working directory on non writable directory" | |
138 | ||
139 | # Removing write access to working dir | |
140 | okx chmod -w ${working_dir} | |
141 | ||
142 | start_lttng_relayd_opt 1 "-b" "-v --working-dir $working_dir" | |
143 | ||
144 | local cwd=$(readlink /proc/${RELAYD_PIDS}/cwd) | |
145 | is "x${cwd}" "x${working_dir}" "Workind directory changed" | |
146 | ||
147 | local output_content="$(cat ${ERROR_OUTPUT_DEST})" | |
148 | like "x${output_content}" "$output_pattern" "Warning about missing write permission is present" | |
149 | ||
150 | stop_lttng_relayd | |
151 | rm -rf ${working_dir} ${ERROR_OUTPUT_DEST} | |
152 | ERROR_OUTPUT_DEST=/dev/null | |
153 | } | |
154 | ||
155 | function test_relayd_failure() | |
156 | { | |
157 | local working_dir="$(mktemp -d)" | |
158 | local working_dir_imaginary="${working_dir}/imaginary_directory" | |
159 | local output_dest=$(mktemp -u) | |
160 | local output_pattern='Error: Changing working directory' | |
161 | local test_dir=$(readlink -f $TESTDIR) | |
162 | local relayd_bin_path="$DIR/../src/bin/lttng-relayd/$RELAYD_BIN" | |
163 | ||
164 | diag "Test lttng-relayd normal mode change non-existing directory" | |
165 | ||
166 | $relayd_bin_path -b --working-directory $working_dir_imaginary > $output_dest 2>&1 | |
167 | test $? -eq "1" | |
168 | ok $? "Expect failure to start lttng-relayd for non-existent working directory" | |
169 | ||
170 | RELAYD_PIDS=$(pgrep $RELAYD_MATCH) | |
171 | if [ -z "${RELAYD_PIDS}" ]; then | |
172 | pass "No lttng-relayd present" | |
173 | else | |
174 | fail "No lttng-relayd present" | |
175 | stop_lttng_relayd_notap | |
176 | fi | |
177 | ||
178 | local output_content="$(cat ${output_dest})" | |
179 | like "x${output_content}" "$output_pattern" "Error about invalid directory" | |
180 | ||
181 | rm -rf ${working_dir} ${output_dest} | |
182 | } | |
183 | ||
184 | TESTS=( | |
185 | test_relayd | |
186 | test_relayd_daemon | |
187 | test_relayd_daemon_no_working_dir | |
188 | test_relayd_background | |
189 | test_relayd_background_no_working_dir | |
190 | test_relayd_debug_permission | |
191 | test_relayd_failure | |
192 | ) | |
193 | ||
194 | for fct_test in ${TESTS[@]}; | |
195 | do | |
196 | ${fct_test} | |
197 | if [ $? -ne 0 ]; then | |
198 | break; | |
199 | fi | |
200 | done |