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1 | /* SPDX-License-Identifier: LGPL-2.1+ */ | |
2 | ||
3 | #include "alloc-util.h" | |
4 | #include "env-util.h" | |
5 | #include "log.h" | |
6 | #include "macro.h" | |
7 | #include "proc-cmdline.h" | |
8 | #include "special.h" | |
9 | #include "string-util.h" | |
10 | #include "util.h" | |
11 | ||
12 | static int obj; | |
13 | ||
14 | static int parse_item(const char *key, const char *value, void *data) { | |
15 | assert_se(key); | |
16 | assert_se(data == &obj); | |
17 | ||
18 | log_info("kernel cmdline option <%s> = <%s>", key, strna(value)); | |
19 | return 0; | |
20 | } | |
21 | ||
22 | static void test_proc_cmdline_parse(void) { | |
23 | log_info("/* %s */", __func__); | |
24 | ||
25 | assert_se(proc_cmdline_parse(parse_item, &obj, PROC_CMDLINE_STRIP_RD_PREFIX) >= 0); | |
26 | } | |
27 | ||
28 | static void test_proc_cmdline_override(void) { | |
29 | log_info("/* %s */", __func__); | |
30 | ||
31 | assert_se(putenv((char*) "SYSTEMD_PROC_CMDLINE=foo_bar=quux wuff-piep=tuet zumm some_arg_with_space='foo bar' and_one_more=\"zzz aaa\"") == 0); | |
32 | ||
33 | /* Test if the override works */ | |
34 | _cleanup_free_ char *line = NULL, *value = NULL; | |
35 | assert_se(proc_cmdline(&line) >= 0); | |
36 | ||
37 | /* Test if parsing makes uses of the override */ | |
38 | assert_se(streq(line, "foo_bar=quux wuff-piep=tuet zumm some_arg_with_space='foo bar' and_one_more=\"zzz aaa\"")); | |
39 | assert_se(proc_cmdline_get_key("foo_bar", 0, &value) > 0 && streq_ptr(value, "quux")); | |
40 | value = mfree(value); | |
41 | ||
42 | assert_se(proc_cmdline_get_key("some_arg_with_space", 0, &value) > 0 && streq_ptr(value, "foo bar")); | |
43 | value = mfree(value); | |
44 | ||
45 | assert_se(proc_cmdline_get_key("and_one_more", 0, &value) > 0 && streq_ptr(value, "zzz aaa")); | |
46 | value = mfree(value); | |
47 | } | |
48 | ||
49 | static int parse_item_given(const char *key, const char *value, void *data) { | |
50 | assert_se(key); | |
51 | assert_se(data); | |
52 | ||
53 | bool *strip = data; | |
54 | ||
55 | log_info("%s: option <%s> = <%s>", __func__, key, strna(value)); | |
56 | if (proc_cmdline_key_streq(key, "foo_bar")) | |
57 | assert_se(streq(value, "quux")); | |
58 | else if (proc_cmdline_key_streq(key, "wuff-piep")) | |
59 | assert_se(streq(value, "tuet ")); | |
60 | else if (proc_cmdline_key_streq(key, "space")) | |
61 | assert_se(streq(value, "x y z")); | |
62 | else if (proc_cmdline_key_streq(key, "miepf")) | |
63 | assert_se(streq(value, "uuu")); | |
64 | else if (in_initrd() && *strip && proc_cmdline_key_streq(key, "zumm")) | |
65 | assert_se(!value); | |
66 | else if (in_initrd() && !*strip && proc_cmdline_key_streq(key, "rd.zumm")) | |
67 | assert_se(!value); | |
68 | else | |
69 | assert_not_reached("Bad key!"); | |
70 | ||
71 | return 0; | |
72 | } | |
73 | ||
74 | static void test_proc_cmdline_given(bool flip_initrd) { | |
75 | log_info("/* %s (flip: %s) */", __func__, yes_no(flip_initrd)); | |
76 | ||
77 | if (flip_initrd) | |
78 | in_initrd_force(!in_initrd()); | |
79 | ||
80 | bool t = true, f = false; | |
81 | assert_se(proc_cmdline_parse_given("foo_bar=quux wuff-piep=\"tuet \" rd.zumm space='x y z' miepf=\"uuu\"", | |
82 | parse_item_given, &t, PROC_CMDLINE_STRIP_RD_PREFIX) >= 0); | |
83 | ||
84 | assert_se(proc_cmdline_parse_given("foo_bar=quux wuff-piep=\"tuet \" rd.zumm space='x y z' miepf=\"uuu\"", | |
85 | parse_item_given, &f, 0) >= 0); | |
86 | ||
87 | if (flip_initrd) | |
88 | in_initrd_force(!in_initrd()); | |
89 | } | |
90 | ||
91 | static void test_proc_cmdline_get_key(void) { | |
92 | _cleanup_free_ char *value = NULL; | |
93 | ||
94 | log_info("/* %s */", __func__); | |
95 | assert_se(putenv((char*) "SYSTEMD_PROC_CMDLINE=foo_bar=quux wuff-piep=tuet zumm spaaace='ö ü ß' ticks=\"''\"") == 0); | |
96 | ||
97 | assert_se(proc_cmdline_get_key("", 0, &value) == -EINVAL); | |
98 | assert_se(proc_cmdline_get_key("abc", 0, NULL) == 0); | |
99 | assert_se(proc_cmdline_get_key("abc", 0, &value) == 0 && value == NULL); | |
100 | assert_se(proc_cmdline_get_key("abc", PROC_CMDLINE_VALUE_OPTIONAL, &value) == 0 && value == NULL); | |
101 | ||
102 | assert_se(proc_cmdline_get_key("foo_bar", 0, &value) > 0 && streq_ptr(value, "quux")); | |
103 | value = mfree(value); | |
104 | assert_se(proc_cmdline_get_key("foo_bar", PROC_CMDLINE_VALUE_OPTIONAL, &value) > 0 && streq_ptr(value, "quux")); | |
105 | value = mfree(value); | |
106 | assert_se(proc_cmdline_get_key("foo-bar", 0, &value) > 0 && streq_ptr(value, "quux")); | |
107 | value = mfree(value); | |
108 | assert_se(proc_cmdline_get_key("foo-bar", PROC_CMDLINE_VALUE_OPTIONAL, &value) > 0 && streq_ptr(value, "quux")); | |
109 | value = mfree(value); | |
110 | assert_se(proc_cmdline_get_key("foo-bar", 0, NULL) == 0); | |
111 | assert_se(proc_cmdline_get_key("foo-bar", PROC_CMDLINE_VALUE_OPTIONAL, NULL) == -EINVAL); | |
112 | ||
113 | assert_se(proc_cmdline_get_key("wuff-piep", 0, &value) > 0 && streq_ptr(value, "tuet")); | |
114 | value = mfree(value); | |
115 | assert_se(proc_cmdline_get_key("wuff-piep", PROC_CMDLINE_VALUE_OPTIONAL, &value) > 0 && streq_ptr(value, "tuet")); | |
116 | value = mfree(value); | |
117 | assert_se(proc_cmdline_get_key("wuff_piep", 0, &value) > 0 && streq_ptr(value, "tuet")); | |
118 | value = mfree(value); | |
119 | assert_se(proc_cmdline_get_key("wuff_piep", PROC_CMDLINE_VALUE_OPTIONAL, &value) > 0 && streq_ptr(value, "tuet")); | |
120 | value = mfree(value); | |
121 | assert_se(proc_cmdline_get_key("wuff_piep", 0, NULL) == 0); | |
122 | assert_se(proc_cmdline_get_key("wuff_piep", PROC_CMDLINE_VALUE_OPTIONAL, NULL) == -EINVAL); | |
123 | ||
124 | assert_se(proc_cmdline_get_key("zumm", 0, &value) == 0 && value == NULL); | |
125 | assert_se(proc_cmdline_get_key("zumm", PROC_CMDLINE_VALUE_OPTIONAL, &value) > 0 && value == NULL); | |
126 | assert_se(proc_cmdline_get_key("zumm", 0, NULL) > 0); | |
127 | ||
128 | assert_se(proc_cmdline_get_key("spaaace", 0, &value) > 0 && streq_ptr(value, "ö ü ß")); | |
129 | value = mfree(value); | |
130 | ||
131 | assert_se(proc_cmdline_get_key("ticks", 0, &value) > 0 && streq_ptr(value, "''")); | |
132 | } | |
133 | ||
134 | static void test_proc_cmdline_get_bool(void) { | |
135 | bool value = false; | |
136 | ||
137 | log_info("/* %s */", __func__); | |
138 | assert_se(putenv((char*) "SYSTEMD_PROC_CMDLINE=foo_bar bar-waldo=1 x_y-z=0 quux=miep") == 0); | |
139 | ||
140 | assert_se(proc_cmdline_get_bool("", &value) == -EINVAL); | |
141 | assert_se(proc_cmdline_get_bool("abc", &value) == 0 && value == false); | |
142 | assert_se(proc_cmdline_get_bool("foo_bar", &value) > 0 && value == true); | |
143 | assert_se(proc_cmdline_get_bool("foo-bar", &value) > 0 && value == true); | |
144 | assert_se(proc_cmdline_get_bool("bar-waldo", &value) > 0 && value == true); | |
145 | assert_se(proc_cmdline_get_bool("bar_waldo", &value) > 0 && value == true); | |
146 | assert_se(proc_cmdline_get_bool("x_y-z", &value) > 0 && value == false); | |
147 | assert_se(proc_cmdline_get_bool("x-y-z", &value) > 0 && value == false); | |
148 | assert_se(proc_cmdline_get_bool("x-y_z", &value) > 0 && value == false); | |
149 | assert_se(proc_cmdline_get_bool("x_y_z", &value) > 0 && value == false); | |
150 | assert_se(proc_cmdline_get_bool("quux", &value) == -EINVAL && value == false); | |
151 | } | |
152 | ||
153 | static void test_proc_cmdline_get_key_many(void) { | |
154 | _cleanup_free_ char *value1 = NULL, *value2 = NULL, *value3 = NULL, *value4 = NULL, *value5 = NULL, *value6 = NULL; | |
155 | ||
156 | log_info("/* %s */", __func__); | |
157 | assert_se(putenv((char*) "SYSTEMD_PROC_CMDLINE=foo_bar=quux wuff-piep=tuet zumm SPACE='one two' doubleticks=\" aaa aaa \"") == 0); | |
158 | ||
159 | assert_se(proc_cmdline_get_key_many(0, | |
160 | "wuff-piep", &value3, | |
161 | "foo_bar", &value1, | |
162 | "idontexist", &value2, | |
163 | "zumm", &value4, | |
164 | "SPACE", &value5, | |
165 | "doubleticks", &value6) == 4); | |
166 | ||
167 | assert_se(streq_ptr(value1, "quux")); | |
168 | assert_se(!value2); | |
169 | assert_se(streq_ptr(value3, "tuet")); | |
170 | assert_se(!value4); | |
171 | assert_se(streq_ptr(value5, "one two")); | |
172 | assert_se(streq_ptr(value6, " aaa aaa ")); | |
173 | } | |
174 | ||
175 | static void test_proc_cmdline_key_streq(void) { | |
176 | log_info("/* %s */", __func__); | |
177 | ||
178 | assert_se(proc_cmdline_key_streq("", "")); | |
179 | assert_se(proc_cmdline_key_streq("a", "a")); | |
180 | assert_se(!proc_cmdline_key_streq("", "a")); | |
181 | assert_se(!proc_cmdline_key_streq("a", "")); | |
182 | assert_se(proc_cmdline_key_streq("a", "a")); | |
183 | assert_se(!proc_cmdline_key_streq("a", "b")); | |
184 | assert_se(proc_cmdline_key_streq("x-y-z", "x-y-z")); | |
185 | assert_se(proc_cmdline_key_streq("x-y-z", "x_y_z")); | |
186 | assert_se(proc_cmdline_key_streq("x-y-z", "x-y_z")); | |
187 | assert_se(proc_cmdline_key_streq("x-y-z", "x_y-z")); | |
188 | assert_se(proc_cmdline_key_streq("x_y-z", "x-y_z")); | |
189 | assert_se(!proc_cmdline_key_streq("x_y-z", "x-z_z")); | |
190 | } | |
191 | ||
192 | static void test_proc_cmdline_key_startswith(void) { | |
193 | log_info("/* %s */", __func__); | |
194 | ||
195 | assert_se(proc_cmdline_key_startswith("", "")); | |
196 | assert_se(proc_cmdline_key_startswith("x", "")); | |
197 | assert_se(!proc_cmdline_key_startswith("", "x")); | |
198 | assert_se(proc_cmdline_key_startswith("x", "x")); | |
199 | assert_se(!proc_cmdline_key_startswith("x", "y")); | |
200 | assert_se(!proc_cmdline_key_startswith("foo-bar", "quux")); | |
201 | assert_se(proc_cmdline_key_startswith("foo-bar", "foo")); | |
202 | assert_se(proc_cmdline_key_startswith("foo-bar", "foo-bar")); | |
203 | assert_se(proc_cmdline_key_startswith("foo-bar", "foo_bar")); | |
204 | assert_se(proc_cmdline_key_startswith("foo-bar", "foo_")); | |
205 | assert_se(!proc_cmdline_key_startswith("foo-bar", "foo_xx")); | |
206 | } | |
207 | ||
208 | static void test_runlevel_to_target(void) { | |
209 | log_info("/* %s */", __func__); | |
210 | ||
211 | in_initrd_force(false); | |
212 | assert_se(streq_ptr(runlevel_to_target(NULL), NULL)); | |
213 | assert_se(streq_ptr(runlevel_to_target("unknown-runlevel"), NULL)); | |
214 | assert_se(streq_ptr(runlevel_to_target("rd.unknown-runlevel"), NULL)); | |
215 | assert_se(streq_ptr(runlevel_to_target("3"), SPECIAL_MULTI_USER_TARGET)); | |
216 | assert_se(streq_ptr(runlevel_to_target("rd.rescue"), NULL)); | |
217 | ||
218 | in_initrd_force(true); | |
219 | assert_se(streq_ptr(runlevel_to_target(NULL), NULL)); | |
220 | assert_se(streq_ptr(runlevel_to_target("unknown-runlevel"), NULL)); | |
221 | assert_se(streq_ptr(runlevel_to_target("rd.unknown-runlevel"), NULL)); | |
222 | assert_se(streq_ptr(runlevel_to_target("3"), NULL)); | |
223 | assert_se(streq_ptr(runlevel_to_target("rd.rescue"), SPECIAL_RESCUE_TARGET)); | |
224 | } | |
225 | ||
226 | int main(void) { | |
227 | log_parse_environment(); | |
228 | log_open(); | |
229 | ||
230 | test_proc_cmdline_parse(); | |
231 | test_proc_cmdline_override(); | |
232 | test_proc_cmdline_given(false); | |
233 | /* Repeat the same thing, but now flip our ininitrdness */ | |
234 | test_proc_cmdline_given(true); | |
235 | test_proc_cmdline_key_streq(); | |
236 | test_proc_cmdline_key_startswith(); | |
237 | test_proc_cmdline_get_key(); | |
238 | test_proc_cmdline_get_bool(); | |
239 | test_proc_cmdline_get_key_many(); | |
240 | test_runlevel_to_target(); | |
241 | ||
242 | return 0; | |
243 | } |