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