src/test/test-proc-cmdline.c

   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=\"''\"\n\nkkk=uuu\n\n\n") == 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         value = mfree(value);
 133
 134         assert_se(proc_cmdline_get_key("kkk", 0, &value) > 0 && streq_ptr(value, "uuu"));
 135 }
 136
 137 static void test_proc_cmdline_get_bool(void) {
 138         bool value = false;
 139
 140         log_info("/* %s */", __func__);
 141         assert_se(putenv((char*) "SYSTEMD_PROC_CMDLINE=foo_bar bar-waldo=1 x_y-z=0 quux=miep\nda=yes\nthe=1") == 0);
 142
 143         assert_se(proc_cmdline_get_bool("", &value) == -EINVAL);
 144         assert_se(proc_cmdline_get_bool("abc", &value) == 0 && value == false);
 145         assert_se(proc_cmdline_get_bool("foo_bar", &value) > 0 && value == true);
 146         assert_se(proc_cmdline_get_bool("foo-bar", &value) > 0 && value == true);
 147         assert_se(proc_cmdline_get_bool("bar-waldo", &value) > 0 && value == true);
 148         assert_se(proc_cmdline_get_bool("bar_waldo", &value) > 0 && value == true);
 149         assert_se(proc_cmdline_get_bool("x_y-z", &value) > 0 && value == false);
 150         assert_se(proc_cmdline_get_bool("x-y-z", &value) > 0 && value == false);
 151         assert_se(proc_cmdline_get_bool("x-y_z", &value) > 0 && value == false);
 152         assert_se(proc_cmdline_get_bool("x_y_z", &value) > 0 && value == false);
 153         assert_se(proc_cmdline_get_bool("quux", &value) == -EINVAL && value == false);
 154         assert_se(proc_cmdline_get_bool("da", &value) > 0 && value == true);
 155         assert_se(proc_cmdline_get_bool("the", &value) > 0 && value == true);
 156 }
 157
 158 static void test_proc_cmdline_get_key_many(void) {
 159         _cleanup_free_ char *value1 = NULL, *value2 = NULL, *value3 = NULL, *value4 = NULL, *value5 = NULL, *value6 = NULL, *value7 = NULL;
 160
 161         log_info("/* %s */", __func__);
 162         assert_se(putenv((char*) "SYSTEMD_PROC_CMDLINE=foo_bar=quux wuff-piep=tuet zumm SPACE='one two' doubleticks=\" aaa aaa \"\n\nzummm='\n'\n") == 0);
 163
 164         assert_se(proc_cmdline_get_key_many(0,
 165                                             "wuff-piep", &value3,
 166                                             "foo_bar", &value1,
 167                                             "idontexist", &value2,
 168                                             "zumm", &value4,
 169                                             "SPACE", &value5,
 170                                             "doubleticks", &value6,
 171                                             "zummm", &value7) == 5);
 172
 173
 174         assert_se(streq_ptr(value1, "quux"));
 175         assert_se(!value2);
 176         assert_se(streq_ptr(value3, "tuet"));
 177         assert_se(!value4);
 178         assert_se(streq_ptr(value5, "one two"));
 179         assert_se(streq_ptr(value6, " aaa aaa "));
 180         assert_se(streq_ptr(value7, "\n"));
 181 }
 182
 183 static void test_proc_cmdline_key_streq(void) {
 184         log_info("/* %s */", __func__);
 185
 186         assert_se(proc_cmdline_key_streq("", ""));
 187         assert_se(proc_cmdline_key_streq("a", "a"));
 188         assert_se(!proc_cmdline_key_streq("", "a"));
 189         assert_se(!proc_cmdline_key_streq("a", ""));
 190         assert_se(proc_cmdline_key_streq("a", "a"));
 191         assert_se(!proc_cmdline_key_streq("a", "b"));
 192         assert_se(proc_cmdline_key_streq("x-y-z", "x-y-z"));
 193         assert_se(proc_cmdline_key_streq("x-y-z", "x_y_z"));
 194         assert_se(proc_cmdline_key_streq("x-y-z", "x-y_z"));
 195         assert_se(proc_cmdline_key_streq("x-y-z", "x_y-z"));
 196         assert_se(proc_cmdline_key_streq("x_y-z", "x-y_z"));
 197         assert_se(!proc_cmdline_key_streq("x_y-z", "x-z_z"));
 198 }
 199
 200 static void test_proc_cmdline_key_startswith(void) {
 201         log_info("/* %s */", __func__);
 202
 203         assert_se(proc_cmdline_key_startswith("", ""));
 204         assert_se(proc_cmdline_key_startswith("x", ""));
 205         assert_se(!proc_cmdline_key_startswith("", "x"));
 206         assert_se(proc_cmdline_key_startswith("x", "x"));
 207         assert_se(!proc_cmdline_key_startswith("x", "y"));
 208         assert_se(!proc_cmdline_key_startswith("foo-bar", "quux"));
 209         assert_se(proc_cmdline_key_startswith("foo-bar", "foo"));
 210         assert_se(proc_cmdline_key_startswith("foo-bar", "foo-bar"));
 211         assert_se(proc_cmdline_key_startswith("foo-bar", "foo_bar"));
 212         assert_se(proc_cmdline_key_startswith("foo-bar", "foo_"));
 213         assert_se(!proc_cmdline_key_startswith("foo-bar", "foo_xx"));
 214 }
 215
 216 static void test_runlevel_to_target(void) {
 217         log_info("/* %s */", __func__);
 218
 219         in_initrd_force(false);
 220         assert_se(streq_ptr(runlevel_to_target(NULL), NULL));
 221         assert_se(streq_ptr(runlevel_to_target("unknown-runlevel"), NULL));
 222         assert_se(streq_ptr(runlevel_to_target("rd.unknown-runlevel"), NULL));
 223         assert_se(streq_ptr(runlevel_to_target("3"), SPECIAL_MULTI_USER_TARGET));
 224         assert_se(streq_ptr(runlevel_to_target("rd.rescue"), NULL));
 225
 226         in_initrd_force(true);
 227         assert_se(streq_ptr(runlevel_to_target(NULL), NULL));
 228         assert_se(streq_ptr(runlevel_to_target("unknown-runlevel"), NULL));
 229         assert_se(streq_ptr(runlevel_to_target("rd.unknown-runlevel"), NULL));
 230         assert_se(streq_ptr(runlevel_to_target("3"), NULL));
 231         assert_se(streq_ptr(runlevel_to_target("rd.rescue"), SPECIAL_RESCUE_TARGET));
 232 }
 233
 234 int main(void) {
 235         log_parse_environment();
 236         log_open();
 237
 238         test_proc_cmdline_parse();
 239         test_proc_cmdline_override();
 240         test_proc_cmdline_given(false);
 241         /* Repeat the same thing, but now flip our ininitrdness */
 242         test_proc_cmdline_given(true);
 243         test_proc_cmdline_key_streq();
 244         test_proc_cmdline_key_startswith();
 245         test_proc_cmdline_get_key();
 246         test_proc_cmdline_get_bool();
 247         test_proc_cmdline_get_key_many();
 248         test_runlevel_to_target();
 249
 250         return 0;
 251 }