src/network/test-network.c

   1 /* SPDX-License-Identifier: LGPL-2.1+ */
   2 /***
   3   This file is part of systemd.
   4
   5   Copyright 2013 Tom Gundersen <teg@jklm.no>
   6 ***/
   7
   8 #include <sys/param.h>
   9
  10 #include "alloc-util.h"
  11 #include "dhcp-lease-internal.h"
  12 #include "hostname-util.h"
  13 #include "network-internal.h"
  14 #include "networkd-manager.h"
  15 #include "string-util.h"
  16 #include "udev-util.h"
  17
  18 static void test_deserialize_in_addr(void) {
  19         _cleanup_free_ struct in_addr *addresses = NULL;
  20         _cleanup_free_ struct in6_addr *addresses6 = NULL;
  21         struct in_addr  a, b, c;
  22         struct in6_addr d, e, f;
  23         int size;
  24         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";
  25
  26         assert_se(inet_pton(AF_INET, "0:0:0:0:0:FFFF:204.152.189.116", &a) == 0);
  27         assert_se(inet_pton(AF_INET6, "192.168.0.1", &d) == 0);
  28
  29         assert_se(inet_pton(AF_INET, "192.168.0.1", &a) == 1);
  30         assert_se(inet_pton(AF_INET, "192.168.0.2", &b) == 1);
  31         assert_se(inet_pton(AF_INET, "192.168.0.3", &c) == 1);
  32         assert_se(inet_pton(AF_INET6, "0:0:0:0:0:FFFF:204.152.189.116", &d) == 1);
  33         assert_se(inet_pton(AF_INET6, "::1", &e) == 1);
  34         assert_se(inet_pton(AF_INET6, "1:0:0:0:0:0:0:8", &f) == 1);
  35
  36         assert_se((size = deserialize_in_addrs(&addresses, addresses_string)) >= 0);
  37         assert_se(size == 3);
  38         assert_se(!memcmp(&a, &addresses[0], sizeof(struct in_addr)));
  39         assert_se(!memcmp(&b, &addresses[1], sizeof(struct in_addr)));
  40         assert_se(!memcmp(&c, &addresses[2], sizeof(struct in_addr)));
  41
  42         assert_se((size = deserialize_in6_addrs(&addresses6, addresses_string)) >= 0);
  43         assert_se(size == 3);
  44         assert_se(!memcmp(&d, &addresses6[0], sizeof(struct in6_addr)));
  45         assert_se(!memcmp(&e, &addresses6[1], sizeof(struct in6_addr)));
  46         assert_se(!memcmp(&f, &addresses6[2], sizeof(struct in6_addr)));
  47 }
  48
  49 static void test_deserialize_dhcp_routes(void) {
  50         size_t size, allocated;
  51
  52         {
  53                 _cleanup_free_ struct sd_dhcp_route *routes = NULL;
  54                 assert_se(deserialize_dhcp_routes(&routes, &size, &allocated, "") >= 0);
  55                 assert_se(size == 0);
  56         }
  57
  58         {
  59                 /* no errors */
  60                 _cleanup_free_ struct sd_dhcp_route *routes = NULL;
  61                 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";
  62
  63                 assert_se(deserialize_dhcp_routes(&routes, &size, &allocated, routes_string) >= 0);
  64
  65                 assert_se(size == 3);
  66                 assert_se(routes[0].dst_addr.s_addr == inet_addr("192.168.0.0"));
  67                 assert_se(routes[0].gw_addr.s_addr == inet_addr("192.168.0.1"));
  68                 assert_se(routes[0].dst_prefixlen == 16);
  69
  70                 assert_se(routes[1].dst_addr.s_addr == inet_addr("10.1.2.0"));
  71                 assert_se(routes[1].gw_addr.s_addr == inet_addr("10.1.2.1"));
  72                 assert_se(routes[1].dst_prefixlen == 24);
  73
  74                 assert_se(routes[2].dst_addr.s_addr == inet_addr("0.0.0.0"));
  75                 assert_se(routes[2].gw_addr.s_addr == inet_addr("10.0.1.1"));
  76                 assert_se(routes[2].dst_prefixlen == 0);
  77         }
  78
  79         {
  80                 /* error in second word */
  81                 _cleanup_free_ struct sd_dhcp_route *routes = NULL;
  82                 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";
  83
  84                 assert_se(deserialize_dhcp_routes(&routes, &size, &allocated, routes_string) >= 0);
  85
  86                 assert_se(size == 2);
  87                 assert_se(routes[0].dst_addr.s_addr == inet_addr("192.168.0.0"));
  88                 assert_se(routes[0].gw_addr.s_addr == inet_addr("192.168.0.1"));
  89                 assert_se(routes[0].dst_prefixlen == 16);
  90
  91                 assert_se(routes[1].dst_addr.s_addr == inet_addr("0.0.0.0"));
  92                 assert_se(routes[1].gw_addr.s_addr == inet_addr("10.0.1.1"));
  93                 assert_se(routes[1].dst_prefixlen == 0);
  94         }
  95
  96         {
  97                 /* error in every word */
  98                 _cleanup_free_ struct sd_dhcp_route *routes = NULL;
  99                 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";
 100
 101                 assert_se(deserialize_dhcp_routes(&routes, &size, &allocated, routes_string) >= 0);
 102                 assert_se(size == 0);
 103         }
 104 }
 105
 106 static int test_load_config(Manager *manager) {
 107         int r;
 108 /*  TODO: should_reload, is false if the config dirs do not exist, so
 109  *        so we can't do this test here, move it to a test for paths_check_timestamps
 110  *        directly
 111  *
 112  *        assert_se(network_should_reload(manager) == true);
 113 */
 114
 115         r = manager_load_config(manager);
 116         if (r == -EPERM)
 117                 return r;
 118         assert_se(r >= 0);
 119
 120         assert_se(manager_should_reload(manager) == false);
 121
 122         return 0;
 123 }
 124
 125 static void test_network_get(Manager *manager, struct udev_device *loopback) {
 126         Network *network;
 127         const struct ether_addr mac = {};
 128
 129         /* let's assume that the test machine does not have a .network file
 130            that applies to the loopback device... */
 131         assert_se(network_get(manager, loopback, "lo", &mac, &network) == -ENOENT);
 132         assert_se(!network);
 133 }
 134
 135 static void test_address_equality(void) {
 136         _cleanup_(address_freep) Address *a1 = NULL, *a2 = NULL;
 137
 138         assert_se(address_new(&a1) >= 0);
 139         assert_se(address_new(&a2) >= 0);
 140
 141         assert_se(address_equal(NULL, NULL));
 142         assert_se(!address_equal(a1, NULL));
 143         assert_se(!address_equal(NULL, a2));
 144         assert_se(address_equal(a1, a2));
 145
 146         a1->family = AF_INET;
 147         assert_se(!address_equal(a1, a2));
 148
 149         a2->family = AF_INET;
 150         assert_se(address_equal(a1, a2));
 151
 152         assert_se(inet_pton(AF_INET, "192.168.3.9", &a1->in_addr.in));
 153         assert_se(!address_equal(a1, a2));
 154         assert_se(inet_pton(AF_INET, "192.168.3.9", &a2->in_addr.in));
 155         assert_se(address_equal(a1, a2));
 156         assert_se(inet_pton(AF_INET, "192.168.3.10", &a1->in_addr_peer.in));
 157         assert_se(address_equal(a1, a2));
 158         assert_se(inet_pton(AF_INET, "192.168.3.11", &a2->in_addr_peer.in));
 159         assert_se(address_equal(a1, a2));
 160         a1->prefixlen = 10;
 161         assert_se(!address_equal(a1, a2));
 162         a2->prefixlen = 10;
 163         assert_se(address_equal(a1, a2));
 164
 165         a1->family = AF_INET6;
 166         assert_se(!address_equal(a1, a2));
 167
 168         a2->family = AF_INET6;
 169         assert_se(inet_pton(AF_INET6, "2001:4ca0:4f01::2", &a1->in_addr.in6));
 170         assert_se(inet_pton(AF_INET6, "2001:4ca0:4f01::2", &a2->in_addr.in6));
 171         assert_se(address_equal(a1, a2));
 172
 173         a2->prefixlen = 8;
 174         assert_se(address_equal(a1, a2));
 175
 176         assert_se(inet_pton(AF_INET6, "2001:4ca0:4f01::1", &a2->in_addr.in6));
 177         assert_se(!address_equal(a1, a2));
 178 }
 179
 180 static void test_dhcp_hostname_shorten_overlong(void) {
 181         int r;
 182
 183         {
 184                 /* simple hostname, no actions, no errors */
 185                 _cleanup_free_ char *shortened = NULL;
 186                 r = shorten_overlong("name1", &shortened);
 187                 assert_se(r == 0);
 188                 assert_se(streq("name1", shortened));
 189         }
 190
 191         {
 192                 /* simple fqdn, no actions, no errors */
 193                 _cleanup_free_ char *shortened = NULL;
 194                 r = shorten_overlong("name1.example.com", &shortened);
 195                 assert_se(r == 0);
 196                 assert_se(streq("name1.example.com", shortened));
 197         }
 198
 199         {
 200                 /* overlong fqdn, cut to first dot, no errors */
 201                 _cleanup_free_ char *shortened = NULL;
 202                 r = shorten_overlong("name1.test-dhcp-this-one-here-is-a-very-very-long-domain.example.com", &shortened);
 203                 assert_se(r == 1);
 204                 assert_se(streq("name1", shortened));
 205         }
 206
 207         {
 208                 /* overlong hostname, cut to HOST_MAX_LEN, no errors */
 209                 _cleanup_free_ char *shortened = NULL;
 210                 r = shorten_overlong("test-dhcp-this-one-here-is-a-very-very-long-hostname-without-domainname", &shortened);
 211                 assert_se(r == 1);
 212                 assert_se(streq("test-dhcp-this-one-here-is-a-very-very-long-hostname-without-dom", shortened));
 213         }
 214
 215         {
 216                 /* overlong fqdn, cut to first dot, empty result error */
 217                 _cleanup_free_ char *shortened = NULL;
 218                 r = shorten_overlong(".test-dhcp-this-one-here-is-a-very-very-long-hostname.example.com", &shortened);
 219                 assert_se(r == -EDOM);
 220                 assert_se(shortened == NULL);
 221         }
 222
 223 }
 224
 225 int main(void) {
 226         _cleanup_(manager_freep) Manager *manager = NULL;
 227         _cleanup_(sd_event_unrefp) sd_event *event = NULL;
 228         _cleanup_(udev_unrefp) struct udev *udev = NULL;
 229         _cleanup_(udev_device_unrefp) struct udev_device *loopback = NULL;
 230         int r;
 231
 232         test_deserialize_in_addr();
 233         test_deserialize_dhcp_routes();
 234         test_address_equality();
 235         test_dhcp_hostname_shorten_overlong();
 236
 237         assert_se(sd_event_default(&event) >= 0);
 238
 239         assert_se(manager_new(&manager, event) >= 0);
 240
 241         r = test_load_config(manager);
 242         if (r == -EPERM)
 243                 return EXIT_TEST_SKIP;
 244
 245         udev = udev_new();
 246         assert_se(udev);
 247
 248         loopback = udev_device_new_from_syspath(udev, "/sys/class/net/lo");
 249         assert_se(loopback);
 250         assert_se(udev_device_get_ifindex(loopback) == 1);
 251
 252         test_network_get(manager, loopback);
 253
 254         assert_se(manager_rtnl_enumerate_links(manager) >= 0);
 255 }