static void test_ipv6_netif_find_best_src_addr__success(void)
{
ng_ipv6_addr_t ll_addr1 = NG_IPV6_ADDR_UNSPECIFIED;
ng_ipv6_addr_t ll_addr2 = NG_IPV6_ADDR_UNSPECIFIED;
ng_ipv6_addr_t mc_addr = NG_IPV6_ADDR_ALL_NODES_LINK_LOCAL;
ng_ipv6_addr_t *out = NULL;
ll_addr1.u8[15] = 1;
ng_ipv6_addr_set_link_local_prefix(&ll_addr1);
ll_addr2.u8[15] = 2;
ng_ipv6_addr_set_link_local_prefix(&ll_addr2);
TEST_ASSERT_EQUAL_INT(126, ng_ipv6_addr_match_prefix(&ll_addr2, &ll_addr1));
test_ipv6_netif_add__success(); /* adds DEFAULT_TEST_NETIF as interface */
TEST_ASSERT_EQUAL_INT(0, ng_ipv6_netif_add_addr(DEFAULT_TEST_NETIF, &mc_addr,
DEFAULT_TEST_PREFIX_LEN, false));
TEST_ASSERT_EQUAL_INT(0, ng_ipv6_netif_add_addr(DEFAULT_TEST_NETIF, &ll_addr1,
DEFAULT_TEST_PREFIX_LEN, false));
TEST_ASSERT_NOT_NULL((out = ng_ipv6_netif_find_best_src_addr(DEFAULT_TEST_NETIF, &ll_addr2)));
TEST_ASSERT(out != &ll_addr1);
TEST_ASSERT(out != &ll_addr2);
TEST_ASSERT_EQUAL_INT(true, ng_ipv6_addr_equal(out, &ll_addr1));
}
static void test_ipv6_addr_match_prefix_same_pointer(void)
{
ng_ipv6_addr_t a = { {
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f
}
};
TEST_ASSERT_EQUAL_INT(128, ng_ipv6_addr_match_prefix(&a, &a));
}
static void test_ipv6_addr_match_prefix_second_NULL(void)
{
ng_ipv6_addr_t a = { {
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f
}
};
TEST_ASSERT_EQUAL_INT(0, ng_ipv6_addr_match_prefix(&a, NULL));
}
static void test_ipv6_netif_match_prefix__success3(void)
{
ng_ipv6_addr_t addr = DEFAULT_TEST_IPV6_PREFIX64;
ng_ipv6_addr_t *out = NULL;
test_ipv6_netif_add_addr__success(); /* adds DEFAULT_TEST_IPV6_ADDR to
* DEFAULT_TEST_NETIF */
TEST_ASSERT_NOT_NULL((out = ng_ipv6_netif_match_prefix(DEFAULT_TEST_NETIF, &addr)));
TEST_ASSERT(out != &addr);
TEST_ASSERT_EQUAL_INT(64, ng_ipv6_addr_match_prefix(out, &addr));
}
static uint8_t _find_by_prefix_unsafe(ng_ipv6_addr_t **res, ng_ipv6_netif_t *iface,
const ng_ipv6_addr_t *addr, bool only_unicast)
{
uint8_t best_match = 0;
for (int i = 0; i < NG_IPV6_NETIF_ADDR_NUMOF; i++) {
uint8_t match;
if ((only_unicast &&
ng_ipv6_netif_addr_is_non_unicast(&(iface->addrs[i].addr))) ||
ng_ipv6_addr_is_unspecified(&(iface->addrs[i].addr))) {
continue;
}
match = ng_ipv6_addr_match_prefix(&(iface->addrs[i].addr), addr);
if (only_unicast && !ng_ipv6_addr_is_multicast(addr) &&
(match < iface->addrs[i].prefix_len)) {
/* match but not of same subnet */
continue;
}
if (match > best_match) {
if (res != NULL) {
*res = &(iface->addrs[i].addr);
}
best_match = match;
}
}
#if ENABLE_DEBUG
if (*res != NULL) {
DEBUG("ipv6 netif: Found %s on interface %" PRIkernel_pid " matching ",
ng_ipv6_addr_to_str(addr_str, *res, sizeof(addr_str)),
iface->pid);
DEBUG("%s by %" PRIu8 " bits (used as source address = %s)\n",
ng_ipv6_addr_to_str(addr_str, addr, sizeof(addr_str)),
best_match,
(only_unicast) ? "true" : "false");
}
else {
DEBUG("ipv6 netif: Did not found any address on interface %" PRIkernel_pid
" matching %s (used as source address = %s)\n",
iface->pid,
ng_ipv6_addr_to_str(addr_str, addr, sizeof(addr_str)),
(only_unicast) ? "true" : "false");
}
#endif
return best_match;
}
static void test_ipv6_netif_find_by_prefix__success2(void)
{
ng_ipv6_addr_t addr = DEFAULT_TEST_IPV6_PREFIX18;
ng_ipv6_addr_t *out = NULL;
test_ipv6_netif_add_addr__success(); /* adds DEFAULT_TEST_IPV6_ADDR to
* DEFAULT_TEST_NETIF */
TEST_ASSERT_EQUAL_INT(DEFAULT_TEST_NETIF, ng_ipv6_netif_find_by_prefix(&out, &addr));
TEST_ASSERT_NOT_NULL(out);
TEST_ASSERT(out != &addr);
TEST_ASSERT_EQUAL_INT(18, ng_ipv6_addr_match_prefix(out, &addr));
}
static void test_ipv6_addr_match_prefix_match_127(void)
{
ng_ipv6_addr_t a = { {
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f
}
};
ng_ipv6_addr_t b = { {
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0e
}
};
TEST_ASSERT_EQUAL_INT(127, ng_ipv6_addr_match_prefix(&a, &b));
}
static void test_ipv6_addr_match_prefix_no_match(void)
{
ng_ipv6_addr_t a = { {
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f
}
};
ng_ipv6_addr_t b = { {
0xff, 0xfe, 0xfd, 0xfc, 0xfb, 0xfa, 0xf9, 0xf8,
0xf7, 0xf6, 0xf5, 0xf4, 0xf3, 0xf2, 0xf1, 0xf0
}
};
TEST_ASSERT_EQUAL_INT(0, ng_ipv6_addr_match_prefix(&a, &b));
}
static void test_ipv6_addr_set_link_local_prefix(void)
{
ng_ipv6_addr_t a = { {
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f
}
};
ng_ipv6_addr_t b = { {
0xfe, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff
}
};
ng_ipv6_addr_set_link_local_prefix(&a);
TEST_ASSERT_EQUAL_INT(64, ng_ipv6_addr_match_prefix(&a, &b));
}
