unit/test-ippool.c

   1 /*
   2  *
   3  *  Connection Manager
   4  *
   5  *  Copyright (C) 2012  BWM CarIT GmbH. All rights reserved.
   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_ippool_basic0(void)
  43 {
  44         struct connman_ippool *pool;
  45         const char *gateway;
  46         const char *broadcast;
  47         const char *subnet_mask;
  48         const char *start_ip;
  49         const char *end_ip;
  50         int i;
  51
  52         /* Test the IP range */
  53
  54         pool = __connman_ippool_create(23, 1, 500, NULL, NULL);
  55         g_assert(pool == NULL);
  56
  57         for (i = 1; i < 254; i++) {
  58                 pool = __connman_ippool_create(23, 1, i, NULL, NULL);
  59                 g_assert(pool);
  60
  61                 gateway = __connman_ippool_get_gateway(pool);
  62                 broadcast = __connman_ippool_get_broadcast(pool);
  63                 subnet_mask = __connman_ippool_get_subnet_mask(pool);
  64                 start_ip = __connman_ippool_get_start_ip(pool);
  65                 end_ip = __connman_ippool_get_end_ip(pool);
  66
  67                 g_assert(gateway);
  68                 g_assert(broadcast);
  69                 g_assert(subnet_mask);
  70                 g_assert(start_ip);
  71                 g_assert(end_ip);
  72
  73                 LOG("\n\tIP range %s --> %s\n"
  74                         "\tgateway %s broadcast %s mask %s", start_ip, end_ip,
  75                         gateway, broadcast, subnet_mask);
  76
  77                 __connman_ippool_unref(pool);
  78         }
  79 }
  80
  81 static void test_ippool_basic1(void)
  82 {
  83         struct connman_ippool *pool;
  84         const char *gateway;
  85         const char *broadcast;
  86         const char *subnet_mask;
  87         const char *start_ip;
  88         const char *end_ip;
  89         GSList *list = NULL, *it;
  90         int i = 0;
  91
  92         /* Allocate all possible pools */
  93
  94         /*
  95          *                                             Number of addresses
  96          * 24-bit block         10.0.0.0    – 10.255.255.255    16,777,216
  97          * 20-bit block         172.16.0.0  – 172.31.255.255     1,048,576
  98          * 16-bit block         192.168.0.0 – 192.168.255.255       65,536
  99          *
 100          * Total                                                17,891,328
 101          *
 102          * Total numbers of 256 blocks:                             69,888
 103          */
 104
 105         while (TRUE) {
 106                 pool = __connman_ippool_create(23, 1, 100, NULL, NULL);
 107                 if (pool == NULL)
 108                         break;
 109                 i += 1;
 110                 g_assert(i < 69888);
 111
 112                 list = g_slist_prepend(list, pool);
 113
 114                 gateway = __connman_ippool_get_gateway(pool);
 115                 broadcast = __connman_ippool_get_broadcast(pool);
 116                 subnet_mask = __connman_ippool_get_subnet_mask(pool);
 117                 start_ip = __connman_ippool_get_start_ip(pool);
 118                 end_ip = __connman_ippool_get_end_ip(pool);
 119
 120                 g_assert(gateway);
 121                 g_assert(broadcast);
 122                 g_assert(subnet_mask);
 123                 g_assert(start_ip);
 124                 g_assert(end_ip);
 125         }
 126
 127         LOG("Number of blocks %d", i);
 128
 129         for (it = list; it != NULL; it = it->next) {
 130                 pool = it->data;
 131
 132                 __connman_ippool_unref(pool);
 133         }
 134
 135         g_slist_free(list);
 136 }
 137
 138 static void collision_cb(struct connman_ippool *pool, void *user_data)
 139 {
 140         int *flag = user_data;
 141
 142         LOG("collision detected");
 143
 144         g_assert(*flag == 0);
 145         g_assert(pool);
 146
 147         *flag = 1;
 148 }
 149
 150 static void test_ippool_collision0(void)
 151 {
 152         struct connman_ippool *pool;
 153         const char *gateway;
 154         const char *broadcast;
 155         const char *subnet_mask;
 156         const char *start_ip;
 157         const char *end_ip;
 158         int flag;
 159
 160         /* Test the IP range collision */
 161
 162         flag = 0;
 163         pool = __connman_ippool_create(23, 1, 100, collision_cb, &flag);
 164         g_assert(pool);
 165
 166         gateway = __connman_ippool_get_gateway(pool);
 167         broadcast = __connman_ippool_get_broadcast(pool);
 168         subnet_mask = __connman_ippool_get_subnet_mask(pool);
 169         start_ip = __connman_ippool_get_start_ip(pool);
 170         end_ip = __connman_ippool_get_end_ip(pool);
 171
 172         g_assert(gateway);
 173         g_assert(broadcast);
 174         g_assert(subnet_mask);
 175         g_assert(start_ip);
 176         g_assert(end_ip);
 177
 178         LOG("\n\tIP range %s --> %s\n"
 179                 "\tgateway %s broadcast %s mask %s", start_ip, end_ip,
 180                 gateway, broadcast, subnet_mask);
 181
 182         __connman_ippool_newaddr(23, start_ip);
 183
 184         g_assert(flag == 0);
 185
 186         __connman_ippool_newaddr(42, end_ip);
 187
 188         g_assert(flag == 1);
 189
 190         __connman_ippool_unref(pool);
 191 }
 192
 193 int main(int argc, char *argv[])
 194 {
 195         int err;
 196
 197         g_test_init(&argc, &argv, NULL);
 198
 199         __connman_ippool_init();
 200
 201         g_test_add_func("/basic0", test_ippool_basic0);
 202         g_test_add_func("/basic1", test_ippool_basic1);
 203         g_test_add_func("/collision0", test_ippool_collision0);
 204
 205         err = g_test_run();
 206
 207         __connman_ippool_cleanup();
 208
 209         return err;
 210 }