src/network/test-network.c

   1 /* SPDX-License-Identifier: LGPL-2.1+ */
   2 /***
   3   Copyright © 2013 Tom Gundersen <teg@jklm.no>
   4 ***/
   5
   6 #include <sys/param.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 "udev-util.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         struct in_addr  a, b, c;
  20         struct in6_addr 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(inet_pton(AF_INET, "0:0:0:0:0:FFFF:204.152.189.116", &a) == 0);
  25         assert_se(inet_pton(AF_INET6, "192.168.0.1", &d) == 0);
  26
  27         assert_se(inet_pton(AF_INET, "192.168.0.1", &a) == 1);
  28         assert_se(inet_pton(AF_INET, "192.168.0.2", &b) == 1);
  29         assert_se(inet_pton(AF_INET, "192.168.0.3", &c) == 1);
  30         assert_se(inet_pton(AF_INET6, "0:0:0:0:0:FFFF:204.152.189.116", &d) == 1);
  31         assert_se(inet_pton(AF_INET6, "::1", &e) == 1);
  32         assert_se(inet_pton(AF_INET6, "1:0:0:0:0:0:0:8", &f) == 1);
  33
  34         assert_se((size = deserialize_in_addrs(&addresses, addresses_string)) >= 0);
  35         assert_se(size == 3);
  36         assert_se(!memcmp(&a, &addresses[0], sizeof(struct in_addr)));
  37         assert_se(!memcmp(&b, &addresses[1], sizeof(struct in_addr)));
  38         assert_se(!memcmp(&c, &addresses[2], sizeof(struct in_addr)));
  39
  40         assert_se((size = deserialize_in6_addrs(&addresses6, addresses_string)) >= 0);
  41         assert_se(size == 3);
  42         assert_se(!memcmp(&d, &addresses6[0], sizeof(struct in6_addr)));
  43         assert_se(!memcmp(&e, &addresses6[1], sizeof(struct in6_addr)));
  44         assert_se(!memcmp(&f, &addresses6[2], sizeof(struct in6_addr)));
  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, struct udev_device *loopback) {
 124         Network *network;
 125         const struct ether_addr mac = {};
 126
 127         /* let's assume that the test machine does not have a .network file
 128            that applies to the loopback device... */
 129         assert_se(network_get(manager, loopback, "lo", &mac, &network) == -ENOENT);
 130         assert_se(!network);
 131 }
 132
 133 static void test_address_equality(void) {
 134         _cleanup_(address_freep) Address *a1 = NULL, *a2 = NULL;
 135
 136         assert_se(address_new(&a1) >= 0);
 137         assert_se(address_new(&a2) >= 0);
 138
 139         assert_se(address_equal(NULL, NULL));
 140         assert_se(!address_equal(a1, NULL));
 141         assert_se(!address_equal(NULL, a2));
 142         assert_se(address_equal(a1, a2));
 143
 144         a1->family = AF_INET;
 145         assert_se(!address_equal(a1, a2));
 146
 147         a2->family = AF_INET;
 148         assert_se(address_equal(a1, a2));
 149
 150         assert_se(inet_pton(AF_INET, "192.168.3.9", &a1->in_addr.in));
 151         assert_se(!address_equal(a1, a2));
 152         assert_se(inet_pton(AF_INET, "192.168.3.9", &a2->in_addr.in));
 153         assert_se(address_equal(a1, a2));
 154         assert_se(inet_pton(AF_INET, "192.168.3.10", &a1->in_addr_peer.in));
 155         assert_se(address_equal(a1, a2));
 156         assert_se(inet_pton(AF_INET, "192.168.3.11", &a2->in_addr_peer.in));
 157         assert_se(address_equal(a1, a2));
 158         a1->prefixlen = 10;
 159         assert_se(!address_equal(a1, a2));
 160         a2->prefixlen = 10;
 161         assert_se(address_equal(a1, a2));
 162
 163         a1->family = AF_INET6;
 164         assert_se(!address_equal(a1, a2));
 165
 166         a2->family = AF_INET6;
 167         assert_se(inet_pton(AF_INET6, "2001:4ca0:4f01::2", &a1->in_addr.in6));
 168         assert_se(inet_pton(AF_INET6, "2001:4ca0:4f01::2", &a2->in_addr.in6));
 169         assert_se(address_equal(a1, a2));
 170
 171         a2->prefixlen = 8;
 172         assert_se(address_equal(a1, a2));
 173
 174         assert_se(inet_pton(AF_INET6, "2001:4ca0:4f01::1", &a2->in_addr.in6));
 175         assert_se(!address_equal(a1, a2));
 176 }
 177
 178 static void test_dhcp_hostname_shorten_overlong(void) {
 179         int r;
 180
 181         {
 182                 /* simple hostname, no actions, no errors */
 183                 _cleanup_free_ char *shortened = NULL;
 184                 r = shorten_overlong("name1", &shortened);
 185                 assert_se(r == 0);
 186                 assert_se(streq("name1", shortened));
 187         }
 188
 189         {
 190                 /* simple fqdn, no actions, no errors */
 191                 _cleanup_free_ char *shortened = NULL;
 192                 r = shorten_overlong("name1.example.com", &shortened);
 193                 assert_se(r == 0);
 194                 assert_se(streq("name1.example.com", shortened));
 195         }
 196
 197         {
 198                 /* overlong fqdn, cut to first dot, no errors */
 199                 _cleanup_free_ char *shortened = NULL;
 200                 r = shorten_overlong("name1.test-dhcp-this-one-here-is-a-very-very-long-domain.example.com", &shortened);
 201                 assert_se(r == 1);
 202                 assert_se(streq("name1", shortened));
 203         }
 204
 205         {
 206                 /* overlong hostname, cut to HOST_MAX_LEN, no errors */
 207                 _cleanup_free_ char *shortened = NULL;
 208                 r = shorten_overlong("test-dhcp-this-one-here-is-a-very-very-long-hostname-without-domainname", &shortened);
 209                 assert_se(r == 1);
 210                 assert_se(streq("test-dhcp-this-one-here-is-a-very-very-long-hostname-without-dom", shortened));
 211         }
 212
 213         {
 214                 /* overlong fqdn, cut to first dot, empty result error */
 215                 _cleanup_free_ char *shortened = NULL;
 216                 r = shorten_overlong(".test-dhcp-this-one-here-is-a-very-very-long-hostname.example.com", &shortened);
 217                 assert_se(r == -EDOM);
 218                 assert_se(shortened == NULL);
 219         }
 220
 221 }
 222
 223 int main(void) {
 224         _cleanup_(manager_freep) Manager *manager = NULL;
 225         _cleanup_(sd_event_unrefp) sd_event *event = NULL;
 226         _cleanup_(udev_unrefp) struct udev *udev = NULL;
 227         _cleanup_(udev_device_unrefp) struct udev_device *loopback = NULL;
 228         int r;
 229
 230         test_deserialize_in_addr();
 231         test_deserialize_dhcp_routes();
 232         test_address_equality();
 233         test_dhcp_hostname_shorten_overlong();
 234
 235         assert_se(sd_event_default(&event) >= 0);
 236
 237         assert_se(manager_new(&manager, event) >= 0);
 238
 239         r = test_load_config(manager);
 240         if (r == -EPERM)
 241                 return EXIT_TEST_SKIP;
 242
 243         udev = udev_new();
 244         assert_se(udev);
 245
 246         loopback = udev_device_new_from_syspath(udev, "/sys/class/net/lo");
 247         assert_se(loopback);
 248         assert_se(udev_device_get_ifindex(loopback) == 1);
 249
 250         test_network_get(manager, loopback);
 251
 252         assert_se(manager_rtnl_enumerate_links(manager) >= 0);
 253 }