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 ng_ipv6_addr_t *_add_addr_to_entry(ng_ipv6_netif_t *entry, const ng_ipv6_addr_t *addr,
uint8_t prefix_len, uint8_t flags)
{
ng_ipv6_netif_addr_t *tmp_addr = NULL;
for (int i = 0; i < NG_IPV6_NETIF_ADDR_NUMOF; i++) {
if (ng_ipv6_addr_equal(&(entry->addrs[i].addr), addr)) {
return &(entry->addrs[i].addr);
}
if (ng_ipv6_addr_is_unspecified(&(entry->addrs[i].addr)) && !tmp_addr) {
tmp_addr = &(entry->addrs[i]);
}
}
if (!tmp_addr) {
DEBUG("ipv6 netif: couldn't add %s/%" PRIu8 " to interface %" PRIkernel_pid "\n: No space left.",
ng_ipv6_addr_to_str(addr_str, addr, sizeof(addr_str)),
prefix_len, entry->pid);
return NULL;
}
memcpy(&(tmp_addr->addr), addr, sizeof(ng_ipv6_addr_t));
DEBUG("ipv6 netif: Added %s/%" PRIu8 " to interface %" PRIkernel_pid "\n",
ng_ipv6_addr_to_str(addr_str, addr, sizeof(addr_str)),
prefix_len, entry->pid);
tmp_addr->prefix_len = prefix_len;
tmp_addr->flags = flags;
if (ng_ipv6_addr_is_multicast(addr)) {
tmp_addr->flags |= NG_IPV6_NETIF_ADDR_FLAGS_NON_UNICAST;
}
else {
ng_ipv6_addr_t sol_node;
if (!ng_ipv6_addr_is_link_local(addr)) {
/* add also corresponding link-local address */
ng_ipv6_addr_t ll_addr;
ll_addr.u64[1] = addr->u64[1];
ng_ipv6_addr_set_link_local_prefix(&ll_addr);
_add_addr_to_entry(entry, &ll_addr, 64,
flags | NG_IPV6_NETIF_ADDR_FLAGS_NDP_ON_LINK);
}
else {
tmp_addr->flags |= NG_IPV6_NETIF_ADDR_FLAGS_NDP_ON_LINK;
}
ng_ipv6_addr_set_solicited_nodes(&sol_node, addr);
_add_addr_to_entry(entry, &sol_node, NG_IPV6_ADDR_BIT_LEN, 0);
}
return &(tmp_addr->addr);
}
void ng_ipv6_netif_init_by_dev(void)
{
kernel_pid_t ifs[NG_NETIF_NUMOF];
size_t ifnum = ng_netif_get(ifs);
for (size_t i = 0; i < ifnum; i++) {
ng_ipv6_addr_t addr;
eui64_t iid;
ng_ipv6_netif_t *ipv6_if = ng_ipv6_netif_get(ifs[i]);
if (ipv6_if == NULL) {
continue;
}
mutex_lock(&ipv6_if->mutex);
#ifdef MODULE_NG_SIXLOWPAN
ng_nettype_t if_type = NG_NETTYPE_UNDEF;
if ((ng_netapi_get(ifs[i], NETCONF_OPT_PROTO, 0, &if_type,
sizeof(if_type)) != -ENOTSUP) &&
(if_type == NG_NETTYPE_SIXLOWPAN)) {
uint16_t src_len = 8;
DEBUG("Set 6LoWPAN flag\n");
ipv6_ifs[i].flags |= NG_IPV6_NETIF_FLAGS_SIXLOWPAN;
/* use EUI-64 (8-byte address) for IID generation and for sending
* packets */
ng_netapi_set(ifs[i], NETCONF_OPT_SRC_LEN, 0, &src_len,
sizeof(src_len)); /* don't care for result */
}
#endif
if ((ng_netapi_get(ifs[i], NETCONF_OPT_IPV6_IID, 0, &iid,
sizeof(eui64_t)) < 0)) {
mutex_unlock(&ipv6_if->mutex);
continue;
}
ng_ipv6_addr_set_aiid(&addr, iid.uint8);
ng_ipv6_addr_set_link_local_prefix(&addr);
_add_addr_to_entry(ipv6_if, &addr, 64, 0);
mutex_unlock(&ipv6_if->mutex);
}
}
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));
}
