src/network/test-network.c

   1 /* SPDX-License-Identifier: LGPL-2.1+ */
   2
   3 #include <sys/param.h>
   4
   5 #include "alloc-util.h"
   6 #include "dhcp-lease-internal.h"
   7 #include "hostname-util.h"
   8 #include "network-internal.h"
   9 #include "networkd-manager.h"
  10 #include "string-util.h"
  11 #include "udev-util.h"
  12
  13 static void test_deserialize_in_addr(void) {
  14         _cleanup_free_ struct in_addr *addresses = NULL;
  15         _cleanup_free_ struct in6_addr *addresses6 = NULL;
  16         struct in_addr  a, b, c;
  17         struct in6_addr d, e, f;
  18         int size;
  19         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";
  20
  21         assert_se(inet_pton(AF_INET, "0:0:0:0:0:FFFF:204.152.189.116", &a) == 0);
  22         assert_se(inet_pton(AF_INET6, "192.168.0.1", &d) == 0);
  23
  24         assert_se(inet_pton(AF_INET, "192.168.0.1", &a) == 1);
  25         assert_se(inet_pton(AF_INET, "192.168.0.2", &b) == 1);
  26         assert_se(inet_pton(AF_INET, "192.168.0.3", &c) == 1);
  27         assert_se(inet_pton(AF_INET6, "0:0:0:0:0:FFFF:204.152.189.116", &d) == 1);
  28         assert_se(inet_pton(AF_INET6, "::1", &e) == 1);
  29         assert_se(inet_pton(AF_INET6, "1:0:0:0:0:0:0:8", &f) == 1);
  30
  31         assert_se((size = deserialize_in_addrs(&addresses, addresses_string)) >= 0);
  32         assert_se(size == 3);
  33         assert_se(!memcmp(&a, &addresses[0], sizeof(struct in_addr)));
  34         assert_se(!memcmp(&b, &addresses[1], sizeof(struct in_addr)));
  35         assert_se(!memcmp(&c, &addresses[2], sizeof(struct in_addr)));
  36
  37         assert_se((size = deserialize_in6_addrs(&addresses6, addresses_string)) >= 0);
  38         assert_se(size == 3);
  39         assert_se(!memcmp(&d, &addresses6[0], sizeof(struct in6_addr)));
  40         assert_se(!memcmp(&e, &addresses6[1], sizeof(struct in6_addr)));
  41         assert_se(!memcmp(&f, &addresses6[2], sizeof(struct in6_addr)));
  42 }
  43
  44 static void test_deserialize_dhcp_routes(void) {
  45         size_t size, allocated;
  46
  47         {
  48                 _cleanup_free_ struct sd_dhcp_route *routes = NULL;
  49                 assert_se(deserialize_dhcp_routes(&routes, &size, &allocated, "") >= 0);
  50                 assert_se(size == 0);
  51         }
  52
  53         {
  54                 /* no errors */
  55                 _cleanup_free_ struct sd_dhcp_route *routes = NULL;
  56                 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";
  57
  58                 assert_se(deserialize_dhcp_routes(&routes, &size, &allocated, routes_string) >= 0);
  59
  60                 assert_se(size == 3);
  61                 assert_se(routes[0].dst_addr.s_addr == inet_addr("192.168.0.0"));
  62                 assert_se(routes[0].gw_addr.s_addr == inet_addr("192.168.0.1"));
  63                 assert_se(routes[0].dst_prefixlen == 16);
  64
  65                 assert_se(routes[1].dst_addr.s_addr == inet_addr("10.1.2.0"));
  66                 assert_se(routes[1].gw_addr.s_addr == inet_addr("10.1.2.1"));
  67                 assert_se(routes[1].dst_prefixlen == 24);
  68
  69                 assert_se(routes[2].dst_addr.s_addr == inet_addr("0.0.0.0"));
  70                 assert_se(routes[2].gw_addr.s_addr == inet_addr("10.0.1.1"));
  71                 assert_se(routes[2].dst_prefixlen == 0);
  72         }
  73
  74         {
  75                 /* error in second word */
  76                 _cleanup_free_ struct sd_dhcp_route *routes = NULL;
  77                 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";
  78
  79                 assert_se(deserialize_dhcp_routes(&routes, &size, &allocated, routes_string) >= 0);
  80
  81                 assert_se(size == 2);
  82                 assert_se(routes[0].dst_addr.s_addr == inet_addr("192.168.0.0"));
  83                 assert_se(routes[0].gw_addr.s_addr == inet_addr("192.168.0.1"));
  84                 assert_se(routes[0].dst_prefixlen == 16);
  85
  86                 assert_se(routes[1].dst_addr.s_addr == inet_addr("0.0.0.0"));
  87                 assert_se(routes[1].gw_addr.s_addr == inet_addr("10.0.1.1"));
  88                 assert_se(routes[1].dst_prefixlen == 0);
  89         }
  90
  91         {
  92                 /* error in every word */
  93                 _cleanup_free_ struct sd_dhcp_route *routes = NULL;
  94                 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";
  95
  96                 assert_se(deserialize_dhcp_routes(&routes, &size, &allocated, routes_string) >= 0);
  97                 assert_se(size == 0);
  98         }
  99 }
 100
 101 static int test_load_config(Manager *manager) {
 102         int r;
 103 /*  TODO: should_reload, is false if the config dirs do not exist, so
 104  *        so we can't do this test here, move it to a test for paths_check_timestamps
 105  *        directly
 106  *
 107  *        assert_se(network_should_reload(manager) == true);
 108 */
 109
 110         r = manager_load_config(manager);
 111         if (r == -EPERM)
 112                 return r;
 113         assert_se(r >= 0);
 114
 115         assert_se(manager_should_reload(manager) == false);
 116
 117         return 0;
 118 }
 119
 120 static void test_network_get(Manager *manager, struct udev_device *loopback) {
 121         Network *network;
 122         const struct ether_addr mac = {};
 123
 124         /* let's assume that the test machine does not have a .network file
 125            that applies to the loopback device... */
 126         assert_se(network_get(manager, loopback, "lo", &mac, &network) == -ENOENT);
 127         assert_se(!network);
 128 }
 129
 130 static void test_address_equality(void) {
 131         _cleanup_(address_freep) Address *a1 = NULL, *a2 = NULL;
 132
 133         assert_se(address_new(&a1) >= 0);
 134         assert_se(address_new(&a2) >= 0);
 135
 136         assert_se(address_equal(NULL, NULL));
 137         assert_se(!address_equal(a1, NULL));
 138         assert_se(!address_equal(NULL, a2));
 139         assert_se(address_equal(a1, a2));
 140
 141         a1->family = AF_INET;
 142         assert_se(!address_equal(a1, a2));
 143
 144         a2->family = AF_INET;
 145         assert_se(address_equal(a1, a2));
 146
 147         assert_se(inet_pton(AF_INET, "192.168.3.9", &a1->in_addr.in));
 148         assert_se(!address_equal(a1, a2));
 149         assert_se(inet_pton(AF_INET, "192.168.3.9", &a2->in_addr.in));
 150         assert_se(address_equal(a1, a2));
 151         assert_se(inet_pton(AF_INET, "192.168.3.10", &a1->in_addr_peer.in));
 152         assert_se(address_equal(a1, a2));
 153         assert_se(inet_pton(AF_INET, "192.168.3.11", &a2->in_addr_peer.in));
 154         assert_se(address_equal(a1, a2));
 155         a1->prefixlen = 10;
 156         assert_se(!address_equal(a1, a2));
 157         a2->prefixlen = 10;
 158         assert_se(address_equal(a1, a2));
 159
 160         a1->family = AF_INET6;
 161         assert_se(!address_equal(a1, a2));
 162
 163         a2->family = AF_INET6;
 164         assert_se(inet_pton(AF_INET6, "2001:4ca0:4f01::2", &a1->in_addr.in6));
 165         assert_se(inet_pton(AF_INET6, "2001:4ca0:4f01::2", &a2->in_addr.in6));
 166         assert_se(address_equal(a1, a2));
 167
 168         a2->prefixlen = 8;
 169         assert_se(address_equal(a1, a2));
 170
 171         assert_se(inet_pton(AF_INET6, "2001:4ca0:4f01::1", &a2->in_addr.in6));
 172         assert_se(!address_equal(a1, a2));
 173 }
 174
 175 static void test_dhcp_hostname_shorten_overlong(void) {
 176         int r;
 177
 178         {
 179                 /* simple hostname, no actions, no errors */
 180                 _cleanup_free_ char *shortened = NULL;
 181                 r = shorten_overlong("name1", &shortened);
 182                 assert_se(r == 0);
 183                 assert_se(streq("name1", shortened));
 184         }
 185
 186         {
 187                 /* simple fqdn, no actions, no errors */
 188                 _cleanup_free_ char *shortened = NULL;
 189                 r = shorten_overlong("name1.example.com", &shortened);
 190                 assert_se(r == 0);
 191                 assert_se(streq("name1.example.com", shortened));
 192         }
 193
 194         {
 195                 /* overlong fqdn, cut to first dot, no errors */
 196                 _cleanup_free_ char *shortened = NULL;
 197                 r = shorten_overlong("name1.test-dhcp-this-one-here-is-a-very-very-long-domain.example.com", &shortened);
 198                 assert_se(r == 1);
 199                 assert_se(streq("name1", shortened));
 200         }
 201
 202         {
 203                 /* overlong hostname, cut to HOST_MAX_LEN, no errors */
 204                 _cleanup_free_ char *shortened = NULL;
 205                 r = shorten_overlong("test-dhcp-this-one-here-is-a-very-very-long-hostname-without-domainname", &shortened);
 206                 assert_se(r == 1);
 207                 assert_se(streq("test-dhcp-this-one-here-is-a-very-very-long-hostname-without-dom", shortened));
 208         }
 209
 210         {
 211                 /* overlong fqdn, cut to first dot, empty result error */
 212                 _cleanup_free_ char *shortened = NULL;
 213                 r = shorten_overlong(".test-dhcp-this-one-here-is-a-very-very-long-hostname.example.com", &shortened);
 214                 assert_se(r == -EDOM);
 215                 assert_se(shortened == NULL);
 216         }
 217
 218 }
 219
 220 int main(void) {
 221         _cleanup_(manager_freep) Manager *manager = NULL;
 222         _cleanup_(udev_unrefp) struct udev *udev = NULL;
 223         _cleanup_(udev_device_unrefp) struct udev_device *loopback = NULL;
 224         int r;
 225
 226         test_deserialize_in_addr();
 227         test_deserialize_dhcp_routes();
 228         test_address_equality();
 229         test_dhcp_hostname_shorten_overlong();
 230
 231         assert_se(manager_new(&manager) >= 0);
 232
 233         r = test_load_config(manager);
 234         if (r == -EPERM)
 235                 return EXIT_TEST_SKIP;
 236
 237         udev = udev_new();
 238         assert_se(udev);
 239
 240         loopback = udev_device_new_from_syspath(udev, "/sys/class/net/lo");
 241         assert_se(loopback);
 242         assert_se(udev_device_get_ifindex(loopback) == 1);
 243
 244         test_network_get(manager, loopback);
 245
 246         assert_se(manager_rtnl_enumerate_links(manager) >= 0);
 247 }