unit/test-ippool.c

   1 /*
   2  *
   3  *  Connection Manager
   4  *
   5  *  Copyright (C) 2012-2014  BMW Car IT GmbH.
   6  *
   7  *  This program is free software; you can redistribute it and/or modify
   8  *  it under the terms of the GNU General Public License version 2 as
   9  *  published by the Free Software Foundation.
  10  *
  11  *  This program is distributed in the hope that it will be useful,
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *  GNU General Public License for more details.
  15  *
  16  *  You should have received a copy of the GNU General Public License
  17  *  along with this program; if not, write to the Free Software
  18  *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  19  *
  20  */
  21
  22 #ifdef HAVE_CONFIG_H
  23 #include <config.h>
  24 #endif
  25
  26 #include <glib.h>
  27
  28 #include "../src/connman.h"
  29
  30 /* #define DEBUG */
  31 #ifdef DEBUG
  32 #include <stdio.h>
  33
  34 #define LOG(fmt, arg...) do { \
  35         fprintf(stdout, "%s:%s() " fmt "\n", \
  36                         __FILE__, __func__ , ## arg); \
  37 } while (0)
  38 #else
  39 #define LOG(fmt, arg...)
  40 #endif
  41
  42 static void test_case_1(void)
  43 {
  44         struct connman_ippool *pool;
  45         int i;
  46
  47         __connman_ippool_init();
  48
  49         pool = __connman_ippool_create(23, 1, 500, NULL, NULL);
  50         g_assert(!pool);
  51
  52         for (i = 0; i < 100000; i++) {
  53                 pool = __connman_ippool_create(23, 1, 20, NULL, NULL);
  54                 g_assert(pool);
  55
  56                 __connman_ippool_unref(pool);
  57         }
  58
  59         __connman_ippool_cleanup();
  60 }
  61
  62 static void test_case_2(void)
  63 {
  64         struct connman_ippool *pool;
  65         const char *gateway;
  66         const char *broadcast;
  67         const char *subnet_mask;
  68         const char *start_ip;
  69         const char *end_ip;
  70         int i;
  71
  72         __connman_ippool_init();
  73
  74         /* Test the IP range */
  75         for (i = 1; i < 254; i++) {
  76                 pool = __connman_ippool_create(23, 1, i, NULL, NULL);
  77                 g_assert(pool);
  78
  79                 gateway = __connman_ippool_get_gateway(pool);
  80                 broadcast = __connman_ippool_get_broadcast(pool);
  81                 subnet_mask = __connman_ippool_get_subnet_mask(pool);
  82                 start_ip = __connman_ippool_get_start_ip(pool);
  83                 end_ip = __connman_ippool_get_end_ip(pool);
  84
  85                 g_assert(gateway);
  86                 g_assert(broadcast);
  87                 g_assert(subnet_mask);
  88                 g_assert(start_ip);
  89                 g_assert(end_ip);
  90
  91                 LOG("\n\tIP range %s --> %s\n"
  92                         "\tgateway %s broadcast %s mask %s", start_ip, end_ip,
  93                         gateway, broadcast, subnet_mask);
  94
  95                 __connman_ippool_unref(pool);
  96         }
  97
  98         __connman_ippool_cleanup();
  99 }
 100
 101 static void test_case_3(void)
 102 {
 103         struct connman_ippool *pool;
 104         const char *gateway;
 105         const char *broadcast;
 106         const char *subnet_mask;
 107         const char *start_ip;
 108         const char *end_ip;
 109         GSList *list = NULL, *it;
 110         int i = 0;
 111
 112         __connman_ippool_init();
 113
 114         /*
 115          *                                             Number of addresses
 116          * 24-bit block         10.0.0.0    – 10.255.255.255    16,777,216
 117          * 20-bit block         172.16.0.0  – 172.31.255.255     1,048,576
 118          * 16-bit block         192.168.0.0 – 192.168.255.255       65,536
 119          *
 120          * Total                                                17,891,328
 121          *
 122          * Total numbers of 256 blocks:                             69,888
 123          */
 124
 125         /*
 126          * Completely exhaust the first two pools because they are a bit
 127          * too large.
 128          */
 129         __connman_ippool_newaddr(45, "10.0.0.1", 8);
 130         __connman_ippool_newaddr(46, "172.16.0.1", 11);
 131
 132         while (TRUE) {
 133                 pool = __connman_ippool_create(23, 1, 100, NULL, NULL);
 134                 if (!pool)
 135                         break;
 136                 i += 1;
 137
 138                 list = g_slist_prepend(list, pool);
 139
 140                 gateway = __connman_ippool_get_gateway(pool);
 141                 broadcast = __connman_ippool_get_broadcast(pool);
 142                 subnet_mask = __connman_ippool_get_subnet_mask(pool);
 143                 start_ip = __connman_ippool_get_start_ip(pool);
 144                 end_ip = __connman_ippool_get_end_ip(pool);
 145
 146                 g_assert(gateway);
 147                 g_assert(broadcast);
 148                 g_assert(subnet_mask);
 149                 g_assert(start_ip);
 150                 g_assert(end_ip);
 151         }
 152
 153         g_assert(i == 255);
 154
 155         LOG("Number of blocks %d", i);
 156
 157         for (it = list; it; it = it->next) {
 158                 pool = it->data;
 159
 160                 __connman_ippool_unref(pool);
 161         }
 162
 163         g_slist_free(list);
 164
 165         __connman_ippool_cleanup();
 166 }
 167
 168 static void collision_cb(struct connman_ippool *pool, void *user_data)
 169 {
 170         int *flag = user_data;
 171
 172         LOG("collision detected");
 173
 174         g_assert(*flag == 0);
 175         g_assert(pool);
 176
 177         *flag = 1;
 178 }
 179
 180 static void test_case_4(void)
 181 {
 182         struct connman_ippool *pool;
 183         const char *gateway;
 184         const char *broadcast;
 185         const char *subnet_mask;
 186         const char *start_ip;
 187         const char *end_ip;
 188         int flag;
 189
 190         __connman_ippool_init();
 191
 192         /* Test the IP range collision */
 193
 194         flag = 0;
 195         pool = __connman_ippool_create(23, 1, 100, collision_cb, &flag);
 196         g_assert(pool);
 197
 198         gateway = __connman_ippool_get_gateway(pool);
 199         broadcast = __connman_ippool_get_broadcast(pool);
 200         subnet_mask = __connman_ippool_get_subnet_mask(pool);
 201         start_ip = __connman_ippool_get_start_ip(pool);
 202         end_ip = __connman_ippool_get_end_ip(pool);
 203
 204         g_assert(gateway);
 205         g_assert(broadcast);
 206         g_assert(subnet_mask);
 207         g_assert(start_ip);
 208         g_assert(end_ip);
 209
 210         LOG("\n\tIP range %s --> %s\n"
 211                 "\tgateway %s broadcast %s mask %s", start_ip, end_ip,
 212                 gateway, broadcast, subnet_mask);
 213
 214         __connman_ippool_newaddr(23, start_ip, 24);
 215
 216         g_assert(flag == 0);
 217
 218         __connman_ippool_newaddr(42, start_ip, 16);
 219
 220         g_assert(flag == 1);
 221
 222         __connman_ippool_unref(pool);
 223
 224         flag = 0;
 225
 226         pool = __connman_ippool_create(23, 1, 100, collision_cb, &flag);
 227         g_assert(pool);
 228
 229         gateway = __connman_ippool_get_gateway(pool);
 230         broadcast = __connman_ippool_get_broadcast(pool);
 231         subnet_mask = __connman_ippool_get_subnet_mask(pool);
 232         start_ip = __connman_ippool_get_start_ip(pool);
 233         end_ip = __connman_ippool_get_end_ip(pool);
 234
 235         g_assert(gateway);
 236         g_assert(broadcast);
 237         g_assert(subnet_mask);
 238         g_assert(start_ip);
 239         g_assert(end_ip);
 240
 241         LOG("\n\tIP range %s --> %s\n"
 242                 "\tgateway %s broadcast %s mask %s", start_ip, end_ip,
 243                 gateway, broadcast, subnet_mask);
 244
 245         __connman_ippool_newaddr(45, start_ip, 22);
 246
 247         g_assert(flag == 1);
 248
 249         __connman_ippool_unref(pool);
 250
 251         __connman_ippool_cleanup();
 252 }
 253
 254 static void test_case_5(void)
 255 {
 256         struct connman_ippool *pool;
 257         const char *gateway;
 258         const char *broadcast;
 259         const char *subnet_mask;
 260         const char *start_ip;
 261         const char *end_ip;
 262         int flag;
 263
 264         __connman_ippool_init();
 265
 266         /* Test the IP range collision */
 267
 268         flag = 0;
 269         start_ip = "192.168.1.2";
 270         __connman_ippool_newaddr(25, start_ip, 24);
 271         g_assert(flag == 0);
 272
 273         /* pool should return 192.168.0.1 now */
 274         pool = __connman_ippool_create(26, 1, 100, collision_cb, &flag);
 275         g_assert(pool);
 276
 277         gateway = __connman_ippool_get_gateway(pool);
 278         broadcast = __connman_ippool_get_broadcast(pool);
 279         subnet_mask = __connman_ippool_get_subnet_mask(pool);
 280         start_ip = __connman_ippool_get_start_ip(pool);
 281         end_ip = __connman_ippool_get_end_ip(pool);
 282
 283         g_assert(gateway);
 284         g_assert(broadcast);
 285         g_assert(subnet_mask);
 286         g_assert(start_ip);
 287         g_assert(end_ip);
 288
 289         g_assert_cmpstr(gateway, ==, "192.168.0.1");
 290         g_assert_cmpstr(broadcast, ==, "192.168.0.255");
 291         g_assert_cmpstr(subnet_mask, ==, "255.255.255.0");
 292         g_assert_cmpstr(start_ip, ==, "192.168.0.1");
 293         g_assert_cmpstr(end_ip, ==, "192.168.0.101");
 294
 295         LOG("\n\tIP range %s --> %s\n"
 296                 "\tgateway %s broadcast %s mask %s", start_ip, end_ip,
 297                 gateway, broadcast, subnet_mask);
 298
 299         __connman_ippool_unref(pool);
 300
 301         /*
 302          * Now create the pool again, we should not get collision
 303          * with existing allocated address.
 304          */
 305
 306         /* pool should return 192.168.2.1 now */
 307         flag = 0;
 308         pool = __connman_ippool_create(23, 1, 100, collision_cb, &flag);
 309         g_assert(pool);
 310
 311         gateway = __connman_ippool_get_gateway(pool);
 312         broadcast = __connman_ippool_get_broadcast(pool);
 313         subnet_mask = __connman_ippool_get_subnet_mask(pool);
 314         start_ip = __connman_ippool_get_start_ip(pool);
 315         end_ip = __connman_ippool_get_end_ip(pool);
 316
 317         g_assert(gateway);
 318         g_assert(broadcast);
 319         g_assert(subnet_mask);
 320         g_assert(start_ip);
 321         g_assert(end_ip);
 322
 323         g_assert_cmpstr(gateway, ==, "192.168.2.1");
 324         g_assert_cmpstr(broadcast, ==, "192.168.2.255");
 325         g_assert_cmpstr(subnet_mask, ==, "255.255.255.0");
 326         g_assert_cmpstr(start_ip, ==, "192.168.2.1");
 327         g_assert_cmpstr(end_ip, ==, "192.168.2.101");
 328
 329         LOG("\n\tIP range %s --> %s\n"
 330                 "\tgateway %s broadcast %s mask %s", start_ip, end_ip,
 331                 gateway, broadcast, subnet_mask);
 332
 333         g_assert(flag == 0);
 334
 335         __connman_ippool_unref(pool);
 336
 337         __connman_ippool_cleanup();
 338 }
 339
 340 static void test_case_6(void)
 341 {
 342         struct connman_ippool *pool;
 343         const char *gateway;
 344         const char *broadcast;
 345         const char *subnet_mask;
 346         const char *start_ip;
 347         const char *end_ip;
 348         int flag;
 349
 350         __connman_ippool_init();
 351
 352         /* Test the IP range collision */
 353
 354         flag = 0;
 355         start_ip = "192.168.1.2";
 356         __connman_ippool_newaddr(25, start_ip, 24);
 357         g_assert(flag == 0);
 358
 359         flag = 0;
 360         start_ip = "192.168.0.2";
 361         __connman_ippool_newaddr(25, start_ip, 24);
 362         g_assert(flag == 0);
 363
 364         /* pool should return 192.168.2.1 now */
 365         pool = __connman_ippool_create(26, 1, 100, collision_cb, &flag);
 366         g_assert(pool);
 367
 368         gateway = __connman_ippool_get_gateway(pool);
 369         broadcast = __connman_ippool_get_broadcast(pool);
 370         subnet_mask = __connman_ippool_get_subnet_mask(pool);
 371         start_ip = __connman_ippool_get_start_ip(pool);
 372         end_ip = __connman_ippool_get_end_ip(pool);
 373
 374         g_assert(gateway);
 375         g_assert(broadcast);
 376         g_assert(subnet_mask);
 377         g_assert(start_ip);
 378         g_assert(end_ip);
 379
 380         g_assert_cmpstr(gateway, ==, "192.168.2.1");
 381         g_assert_cmpstr(broadcast, ==, "192.168.2.255");
 382         g_assert_cmpstr(subnet_mask, ==, "255.255.255.0");
 383         g_assert_cmpstr(start_ip, ==, "192.168.2.1");
 384         g_assert_cmpstr(end_ip, ==, "192.168.2.101");
 385
 386         LOG("\n\tIP range %s --> %s\n"
 387                 "\tgateway %s broadcast %s mask %s", start_ip, end_ip,
 388                 gateway, broadcast, subnet_mask);
 389
 390         __connman_ippool_unref(pool);
 391
 392         /*
 393          * Now create the pool again, we should not get collision
 394          * with existing allocated address.
 395          */
 396
 397         /* pool should return 192.168.3.1 now */
 398         flag = 0;
 399         pool = __connman_ippool_create(23, 1, 100, collision_cb, &flag);
 400         g_assert(pool);
 401
 402         gateway = __connman_ippool_get_gateway(pool);
 403         broadcast = __connman_ippool_get_broadcast(pool);
 404         subnet_mask = __connman_ippool_get_subnet_mask(pool);
 405         start_ip = __connman_ippool_get_start_ip(pool);
 406         end_ip = __connman_ippool_get_end_ip(pool);
 407
 408         g_assert(gateway);
 409         g_assert(broadcast);
 410         g_assert(subnet_mask);
 411         g_assert(start_ip);
 412         g_assert(end_ip);
 413
 414         g_assert_cmpstr(gateway, ==, "192.168.3.1");
 415         g_assert_cmpstr(broadcast, ==, "192.168.3.255");
 416         g_assert_cmpstr(subnet_mask, ==, "255.255.255.0");
 417         g_assert_cmpstr(start_ip, ==, "192.168.3.1");
 418         g_assert_cmpstr(end_ip, ==, "192.168.3.101");
 419
 420         LOG("\n\tIP range %s --> %s\n"
 421                 "\tgateway %s broadcast %s mask %s", start_ip, end_ip,
 422                 gateway, broadcast, subnet_mask);
 423
 424         g_assert(flag == 0);
 425
 426         flag = 0;
 427         start_ip = "192.168.3.2";
 428         __connman_ippool_newaddr(25, start_ip, 24);
 429         g_assert(flag == 1);
 430
 431         __connman_ippool_unref(pool);
 432
 433         __connman_ippool_cleanup();
 434 }
 435
 436 int main(int argc, char *argv[])
 437 {
 438         g_test_init(&argc, &argv, NULL);
 439
 440         g_test_add_func("/ippool/Test case 1", test_case_1);
 441         g_test_add_func("/ippool/Test case 2", test_case_2);
 442         g_test_add_func("/ippool/Test case 3", test_case_3);
 443         g_test_add_func("/ippool/Test case 4", test_case_4);
 444         g_test_add_func("/ippool/Test case 5", test_case_5);
 445         g_test_add_func("/ippool/Test case 6", test_case_6);
 446
 447         return g_test_run();
 448 }