src/network/test-network.c

   1 /* SPDX-License-Identifier: LGPL-2.1+ */
   2
   3 #include <arpa/inet.h>
   4 #include <sys/param.h>
   5
   6 #include "sd-device.h"
   7
   8 #include "alloc-util.h"
   9 #include "dhcp-lease-internal.h"
  10 #include "ether-addr-util.h"
  11 #include "hostname-util.h"
  12 #include "network-internal.h"
  13 #include "networkd-manager.h"
  14 #include "string-util.h"
  15 #include "tests.h"
  16
  17 static void test_deserialize_in_addr(void) {
  18         _cleanup_free_ struct in_addr *addresses = NULL;
  19         _cleanup_free_ struct in6_addr *addresses6 = NULL;
  20         union in_addr_union a, b, c, d, e, f;
  21         int size;
  22         const char *addresses_string = "192.168.0.1 0:0:0:0:0:FFFF:204.152.189.116 192.168.0.2 ::1 192.168.0.3 1:0:0:0:0:0:0:8";
  23
  24         assert_se(in_addr_from_string(AF_INET, "0:0:0:0:0:FFFF:204.152.189.116", &a) < 0);
  25         assert_se(in_addr_from_string(AF_INET6, "192.168.0.1", &d) < 0);
  26
  27         assert_se(in_addr_from_string(AF_INET, "192.168.0.1", &a) >= 0);
  28         assert_se(in_addr_from_string(AF_INET, "192.168.0.2", &b) >= 0);
  29         assert_se(in_addr_from_string(AF_INET, "192.168.0.3", &c) >= 0);
  30         assert_se(in_addr_from_string(AF_INET6, "0:0:0:0:0:FFFF:204.152.189.116", &d) >= 0);
  31         assert_se(in_addr_from_string(AF_INET6, "::1", &e) >= 0);
  32         assert_se(in_addr_from_string(AF_INET6, "1:0:0:0:0:0:0:8", &f) >= 0);
  33
  34         assert_se((size = deserialize_in_addrs(&addresses, addresses_string)) >= 0);
  35         assert_se(size == 3);
  36         assert_se(in_addr_equal(AF_INET, &a, (union in_addr_union *) &addresses[0]));
  37         assert_se(in_addr_equal(AF_INET, &b, (union in_addr_union *) &addresses[1]));
  38         assert_se(in_addr_equal(AF_INET, &c, (union in_addr_union *) &addresses[2]));
  39
  40         assert_se((size = deserialize_in6_addrs(&addresses6, addresses_string)) >= 0);
  41         assert_se(size == 3);
  42         assert_se(in_addr_equal(AF_INET6, &d, (union in_addr_union *) &addresses6[0]));
  43         assert_se(in_addr_equal(AF_INET6, &e, (union in_addr_union *) &addresses6[1]));
  44         assert_se(in_addr_equal(AF_INET6, &f, (union in_addr_union *) &addresses6[2]));
  45 }
  46
  47 static void test_deserialize_dhcp_routes(void) {
  48         size_t size, allocated;
  49
  50         {
  51                 _cleanup_free_ struct sd_dhcp_route *routes = NULL;
  52                 assert_se(deserialize_dhcp_routes(&routes, &size, &allocated, "") >= 0);
  53                 assert_se(size == 0);
  54         }
  55
  56         {
  57                 /* no errors */
  58                 _cleanup_free_ struct sd_dhcp_route *routes = NULL;
  59                 const char *routes_string = "192.168.0.0/16,192.168.0.1 10.1.2.0/24,10.1.2.1 0.0.0.0/0,10.0.1.1";
  60
  61                 assert_se(deserialize_dhcp_routes(&routes, &size, &allocated, routes_string) >= 0);
  62
  63                 assert_se(size == 3);
  64                 assert_se(routes[0].dst_addr.s_addr == inet_addr("192.168.0.0"));
  65                 assert_se(routes[0].gw_addr.s_addr == inet_addr("192.168.0.1"));
  66                 assert_se(routes[0].dst_prefixlen == 16);
  67
  68                 assert_se(routes[1].dst_addr.s_addr == inet_addr("10.1.2.0"));
  69                 assert_se(routes[1].gw_addr.s_addr == inet_addr("10.1.2.1"));
  70                 assert_se(routes[1].dst_prefixlen == 24);
  71
  72                 assert_se(routes[2].dst_addr.s_addr == inet_addr("0.0.0.0"));
  73                 assert_se(routes[2].gw_addr.s_addr == inet_addr("10.0.1.1"));
  74                 assert_se(routes[2].dst_prefixlen == 0);
  75         }
  76
  77         {
  78                 /* error in second word */
  79                 _cleanup_free_ struct sd_dhcp_route *routes = NULL;
  80                 const char *routes_string = "192.168.0.0/16,192.168.0.1 10.1.2.0#24,10.1.2.1 0.0.0.0/0,10.0.1.1";
  81
  82                 assert_se(deserialize_dhcp_routes(&routes, &size, &allocated, routes_string) >= 0);
  83
  84                 assert_se(size == 2);
  85                 assert_se(routes[0].dst_addr.s_addr == inet_addr("192.168.0.0"));
  86                 assert_se(routes[0].gw_addr.s_addr == inet_addr("192.168.0.1"));
  87                 assert_se(routes[0].dst_prefixlen == 16);
  88
  89                 assert_se(routes[1].dst_addr.s_addr == inet_addr("0.0.0.0"));
  90                 assert_se(routes[1].gw_addr.s_addr == inet_addr("10.0.1.1"));
  91                 assert_se(routes[1].dst_prefixlen == 0);
  92         }
  93
  94         {
  95                 /* error in every word */
  96                 _cleanup_free_ struct sd_dhcp_route *routes = NULL;
  97                 const char *routes_string = "192.168.0.0/55,192.168.0.1 10.1.2.0#24,10.1.2.1 0.0.0.0/0,10.0.1.X";
  98
  99                 assert_se(deserialize_dhcp_routes(&routes, &size, &allocated, routes_string) >= 0);
 100                 assert_se(size == 0);
 101         }
 102 }
 103
 104 static int test_load_config(Manager *manager) {
 105         int r;
 106 /*  TODO: should_reload, is false if the config dirs do not exist, so
 107  *        so we can't do this test here, move it to a test for paths_check_timestamps
 108  *        directly
 109  *
 110  *        assert_se(network_should_reload(manager) == true);
 111 */
 112
 113         r = manager_load_config(manager);
 114         if (r == -EPERM)
 115                 return r;
 116         assert_se(r >= 0);
 117
 118         assert_se(manager_should_reload(manager) == false);
 119
 120         return 0;
 121 }
 122
 123 static void test_network_get(Manager *manager, sd_device *loopback) {
 124         Network *network;
 125         const struct ether_addr mac = ETHER_ADDR_NULL;
 126         int r;
 127
 128         /* Let's hope that the test machine does not have a .network file that applies to loopback device…
 129          * But it is still possible, so let's allow that case too. */
 130         r = network_get(manager, 0, loopback, "lo", NULL, NULL, &mac, &mac, 0, NULL, NULL, &network);
 131         if (r == -ENOENT)
 132                 /* The expected case */
 133                 assert_se(!network);
 134         else if (r >= 0)
 135                 assert_se(network);
 136         else
 137                 assert_not_reached("bad error!");
 138 }
 139
 140 static void test_address_equality(void) {
 141         _cleanup_(address_freep) Address *a1 = NULL, *a2 = NULL;
 142
 143         assert_se(address_new(&a1) >= 0);
 144         assert_se(address_new(&a2) >= 0);
 145
 146         assert_se(address_equal(NULL, NULL));
 147         assert_se(!address_equal(a1, NULL));
 148         assert_se(!address_equal(NULL, a2));
 149         assert_se(address_equal(a1, a2));
 150
 151         a1->family = AF_INET;
 152         assert_se(!address_equal(a1, a2));
 153
 154         a2->family = AF_INET;
 155         assert_se(address_equal(a1, a2));
 156
 157         assert_se(in_addr_from_string(AF_INET, "192.168.3.9", &a1->in_addr) >= 0);
 158         assert_se(!address_equal(a1, a2));
 159         assert_se(in_addr_from_string(AF_INET, "192.168.3.9", &a2->in_addr) >= 0);
 160         assert_se(address_equal(a1, a2));
 161         assert_se(in_addr_from_string(AF_INET, "192.168.3.10", &a1->in_addr_peer) >= 0);
 162         assert_se(!address_equal(a1, a2));
 163         assert_se(in_addr_from_string(AF_INET, "192.168.3.11", &a2->in_addr_peer) >= 0);
 164         assert_se(!address_equal(a1, a2));
 165         a2->in_addr_peer = a1->in_addr_peer;
 166         assert_se(address_equal(a1, a2));
 167         a1->prefixlen = 10;
 168         assert_se(!address_equal(a1, a2));
 169         a2->prefixlen = 10;
 170         assert_se(address_equal(a1, a2));
 171
 172         a1->family = AF_INET6;
 173         assert_se(!address_equal(a1, a2));
 174
 175         a2->family = AF_INET6;
 176         a1->in_addr_peer = a2->in_addr_peer = IN_ADDR_NULL;
 177         assert_se(in_addr_from_string(AF_INET6, "2001:4ca0:4f01::2", &a1->in_addr) >= 0);
 178         assert_se(in_addr_from_string(AF_INET6, "2001:4ca0:4f01::2", &a2->in_addr) >= 0);
 179         assert_se(address_equal(a1, a2));
 180
 181         a1->prefixlen = 8;
 182         assert_se(!address_equal(a1, a2));
 183         a2->prefixlen = 8;
 184         assert_se(address_equal(a1, a2));
 185
 186         assert_se(in_addr_from_string(AF_INET6, "2001:4ca0:4f01::1", &a2->in_addr) >= 0);
 187         assert_se(!address_equal(a1, a2));
 188 }
 189
 190 static void test_dhcp_hostname_shorten_overlong(void) {
 191         int r;
 192
 193         {
 194                 /* simple hostname, no actions, no errors */
 195                 _cleanup_free_ char *shortened = NULL;
 196                 r = shorten_overlong("name1", &shortened);
 197                 assert_se(r == 0);
 198                 assert_se(streq("name1", shortened));
 199         }
 200
 201         {
 202                 /* simple fqdn, no actions, no errors */
 203                 _cleanup_free_ char *shortened = NULL;
 204                 r = shorten_overlong("name1.example.com", &shortened);
 205                 assert_se(r == 0);
 206                 assert_se(streq("name1.example.com", shortened));
 207         }
 208
 209         {
 210                 /* overlong fqdn, cut to first dot, no errors */
 211                 _cleanup_free_ char *shortened = NULL;
 212                 r = shorten_overlong("name1.test-dhcp-this-one-here-is-a-very-very-long-domain.example.com", &shortened);
 213                 assert_se(r == 1);
 214                 assert_se(streq("name1", shortened));
 215         }
 216
 217         {
 218                 /* overlong hostname, cut to HOST_MAX_LEN, no errors */
 219                 _cleanup_free_ char *shortened = NULL;
 220                 r = shorten_overlong("test-dhcp-this-one-here-is-a-very-very-long-hostname-without-domainname", &shortened);
 221                 assert_se(r == 1);
 222                 assert_se(streq("test-dhcp-this-one-here-is-a-very-very-long-hostname-without-dom", shortened));
 223         }
 224
 225         {
 226                 /* overlong fqdn, cut to first dot, empty result error */
 227                 _cleanup_free_ char *shortened = NULL;
 228                 r = shorten_overlong(".test-dhcp-this-one-here-is-a-very-very-long-hostname.example.com", &shortened);
 229                 assert_se(r == -EDOM);
 230                 assert_se(shortened == NULL);
 231         }
 232
 233 }
 234
 235 int main(void) {
 236         _cleanup_(manager_freep) Manager *manager = NULL;
 237         _cleanup_(sd_device_unrefp) sd_device *loopback = NULL;
 238         int ifindex, r;
 239
 240         test_setup_logging(LOG_INFO);
 241
 242         test_deserialize_in_addr();
 243         test_deserialize_dhcp_routes();
 244         test_address_equality();
 245         test_dhcp_hostname_shorten_overlong();
 246
 247         assert_se(manager_new(&manager) >= 0);
 248
 249         r = test_load_config(manager);
 250         if (r == -EPERM)
 251                 return log_tests_skipped("Cannot load configuration");
 252         assert_se(r == 0);
 253
 254         assert_se(sd_device_new_from_syspath(&loopback, "/sys/class/net/lo") >= 0);
 255         assert_se(loopback);
 256         assert_se(sd_device_get_ifindex(loopback, &ifindex) >= 0);
 257         assert_se(ifindex == 1);
 258
 259         test_network_get(manager, loopback);
 260
 261         assert_se(manager_enumerate(manager) >= 0);
 262         return 0;
 263 }