static int _add_addr_to_entry(ng_ipv6_netif_t *entry, const ng_ipv6_addr_t *addr,
uint8_t prefix_len, bool anycast)
{
for (int i = 0; i < NG_IPV6_NETIF_ADDR_NUMOF; i++) {
if (ng_ipv6_addr_equal(&(entry->addrs[i].addr), addr)) {
return 0;
}
if (ng_ipv6_addr_is_unspecified(&(entry->addrs[i].addr))) {
memcpy(&(entry->addrs[i].addr), addr, sizeof(ng_ipv6_addr_t));
DEBUG("Added %s/%" PRIu8 " to interface %" PRIkernel_pid "\n",
ng_ipv6_addr_to_str(&(entry->addrs[i].addr), addr,
sizeof(addr_str)),
prefix_len, entry->pid);
if (anycast || ng_ipv6_addr_is_multicast(addr)) {
if (ng_ipv6_addr_is_multicast(addr)) {
entry->addrs[i].prefix_len = NG_IPV6_ADDR_BIT_LEN;
}
entry->addrs[i].flags = NG_IPV6_NETIF_ADDR_FLAGS_NON_UNICAST;
}
else {
entry->addrs[i].prefix_len = prefix_len;
entry->addrs[i].flags = NG_IPV6_NETIF_ADDR_FLAGS_UNICAST;
}
return 0;
}
}
return -ENOMEM;
}
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_from_str__success4(void)
{
ng_ipv6_addr_t a = NG_IPV6_ADDR_UNSPECIFIED;
ng_ipv6_addr_t result;
TEST_ASSERT_NOT_NULL(ng_ipv6_addr_from_str(&result, "::"));
TEST_ASSERT(ng_ipv6_addr_equal(&a, &result));
}
static void test_ipv6_addr_from_str__success5(void)
{
ng_ipv6_addr_t a = NG_IPV6_ADDR_LOOPBACK;
ng_ipv6_addr_t result;
TEST_ASSERT_NOT_NULL(ng_ipv6_addr_from_str(&result, "::1"));
TEST_ASSERT(ng_ipv6_addr_equal(&a, &result));
}
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);
}
static void test_ipv6_addr_init_prefix(void)
{
ng_ipv6_addr_t a, b = { {
0x00, 0x01, 0x02, 0x02, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
}
};
ng_ipv6_addr_init_prefix(&a, &b, 31);
TEST_ASSERT_EQUAL_INT(true, ng_ipv6_addr_equal(&a, &b));
}
static void test_ipv6_addr_from_str__success6(void)
{
ng_ipv6_addr_t a = { {
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0xff, 0xff, 192, 168, 0, 1
}
};
ng_ipv6_addr_t result;
TEST_ASSERT_NOT_NULL(ng_ipv6_addr_from_str(&result, "::ffff:192.168.0.1"));
TEST_ASSERT(ng_ipv6_addr_equal(&a, &result));
}
static void test_ipv6_addr_from_str__success2(void)
{
ng_ipv6_addr_t a = { {
0xfe, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff
}
};
ng_ipv6_addr_t result;
TEST_ASSERT_NOT_NULL(ng_ipv6_addr_from_str(&result, "fe80::f8f9:fafb:fcfd:feff"));
TEST_ASSERT(ng_ipv6_addr_equal(&a, &result));
}
static void test_ipv6_netif_find_addr__success(void)
{
ng_ipv6_addr_t addr = DEFAULT_TEST_IPV6_ADDR;
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_find_addr(DEFAULT_TEST_NETIF, &addr)));
TEST_ASSERT(out != &addr);
TEST_ASSERT_EQUAL_INT(true, ng_ipv6_addr_equal(out, &addr));
}
static void test_ipv6_addr_from_str__success3(void)
{
ng_ipv6_addr_t a = { {
0xfe, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff
}
};
ng_ipv6_addr_t result;
TEST_ASSERT_NOT_NULL(ng_ipv6_addr_from_str(&result, "FE80::F8F9:FAFB:FCFD:FEFF"));
TEST_ASSERT(ng_ipv6_addr_equal(&a, &result));
}
static void test_ipv6_addr_from_str__success6(void)
{
ng_ipv6_addr_t a = { {
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
0xff, 0xff, 0xff, 0xff, 255, 255, 255, 255
}
};
ng_ipv6_addr_t result;
TEST_ASSERT_NOT_NULL(ng_ipv6_addr_from_str(&result, "ffff:ffff:ffff:ffff:ffff:ffff:255.255.255.255"));
TEST_ASSERT(ng_ipv6_addr_equal(&a, &result));
}
static void test_ipv6_addr_from_str__success(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 result;
TEST_ASSERT_NOT_NULL(ng_ipv6_addr_from_str(&result, "1:203:405:607:809:a0b:c0d:e0f"));
TEST_ASSERT(ng_ipv6_addr_equal(&a, &result));
}
static void test_ipv6_addr_equal_not_equal(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 = { {
0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f
}
};
TEST_ASSERT_EQUAL_INT(false, ng_ipv6_addr_equal(&a, &b));
}
static void test_ipv6_addr_equal_equal(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, 0x0f
}
};
TEST_ASSERT_EQUAL_INT(true, ng_ipv6_addr_equal(&a, &b));
}
static void test_ipv6_addr_set_all_nodes_multicast_link_local(void)
{
ng_ipv6_addr_t a = NG_IPV6_ADDR_UNSPECIFIED;
ng_ipv6_addr_t b = NG_IPV6_ADDR_ALL_NODES_LINK_LOCAL;
ng_ipv6_addr_mcast_scp_t scope = NG_IPV6_ADDR_MCAST_SCP_LINK_LOCAL;
TEST_ASSERT_EQUAL_INT(0xff020000, byteorder_ntohl(b.u32[0])); /* Don't trust the macro ;) */
TEST_ASSERT_EQUAL_INT(0, b.u32[1].u32);
TEST_ASSERT_EQUAL_INT(1, byteorder_ntohll(b.u64[1]));
ng_ipv6_addr_set_all_nodes_multicast(&a, scope);
TEST_ASSERT_EQUAL_INT(true, ng_ipv6_addr_equal(&a, &b));
}
static void test_ipv6_addr_set_all_routers_multicast_site_local(void)
{
ng_ipv6_addr_t a = NG_IPV6_ADDR_UNSPECIFIED;
ng_ipv6_addr_t b = NG_IPV6_ADDR_ALL_ROUTERS_SITE_LOCAL;
ng_ipv6_addr_mcast_scp_t scope = NG_IPV6_ADDR_MCAST_SCP_SITE_LOCAL;
TEST_ASSERT_EQUAL_INT(0xff050000, byteorder_ntohl(b.u32[0])); /* Don't trust the macro ;) */
TEST_ASSERT_EQUAL_INT(0, b.u32[1].u32);
TEST_ASSERT_EQUAL_INT(2, byteorder_ntohll(b.u64[1]));
ng_ipv6_addr_set_all_routers_multicast(&a, scope);
TEST_ASSERT_EQUAL_INT(true, ng_ipv6_addr_equal(&a, &b));
}
static void _remove_addr_from_entry(ng_ipv6_netif_t *entry, ng_ipv6_addr_t *addr)
{
mutex_lock(&entry->mutex);
for (int i = 0; i < NG_IPV6_NETIF_ADDR_NUMOF; i++) {
if (ng_ipv6_addr_equal(&(entry->addrs[i].addr), addr)) {
DEBUG("ipv6 netif: Remove %s to interface %" PRIkernel_pid "\n",
ng_ipv6_addr_to_str(addr_str, addr, sizeof(addr_str)), entry->pid);
ng_ipv6_addr_set_unspecified(&(entry->addrs[i].addr));
entry->addrs[i].flags = 0;
mutex_unlock(&entry->mutex);
return;
}
}
mutex_unlock(&entry->mutex);
}
static void test_ipv6_addr_set_aiid(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,
0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff
}
};
ng_ipv6_addr_set_aiid(&a, &(b.u8[8]));
TEST_ASSERT_EQUAL_INT(true, ng_ipv6_addr_equal(&a, &b));
}
static void test_ipv6_addr_init_prefix(void)
{
ng_ipv6_addr_t a = { {
0x00, 0x01, 0x02, 0x02, 0x04, 0x05, 0x06, 0x07,
0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f
}
};
ng_ipv6_addr_t b = { {
0x00, 0x01, 0x02, 0x03, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
}
};
ng_ipv6_addr_t c = { {
0xff, 0xfe, 0xfd, 0xfe, 0x04, 0x05, 0x06, 0x07,
0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f
}
};
ng_ipv6_addr_init_prefix(&c, &b, 31);
TEST_ASSERT_EQUAL_INT(true, ng_ipv6_addr_equal(&a, &c));
}
void ng_ipv6_netif_remove_addr(kernel_pid_t pid, ng_ipv6_addr_t *addr)
{
ng_ipv6_netif_t *entry = ng_ipv6_netif_get(pid);
if (entry == NULL) {
return;
}
mutex_lock(&entry->mutex);
for (int i = 0; i < NG_IPV6_NETIF_ADDR_NUMOF; i++) {
if (ng_ipv6_addr_equal(&(entry->addrs[i].addr), addr)) {
DEBUG("Remove %s to interface %" PRIkernel_pid "\n",
ng_ipv6_addr_to_str(addr_str, addr, sizeof(addr_str)), pid);
ng_ipv6_addr_set_unspecified(&(entry->addrs[i].addr));
entry->addrs[i].flags = 0;
mutex_unlock(&entry->mutex);
return;
}
}
mutex_unlock(&entry->mutex);
}
ng_ipv6_addr_t *ng_ipv6_netif_find_addr(kernel_pid_t pid, const ng_ipv6_addr_t *addr)
{
ng_ipv6_netif_t *entry = ng_ipv6_netif_get(pid);
if (entry == NULL) {
return NULL;
}
mutex_lock(&entry->mutex);
for (int i = 0; i < NG_IPV6_NETIF_ADDR_NUMOF; i++) {
if (ng_ipv6_addr_equal(&(entry->addrs[i].addr), addr)) {
mutex_unlock(&entry->mutex);
DEBUG("ipv6 netif: Found %s on interface %" PRIkernel_pid "\n",
ng_ipv6_addr_to_str(addr_str, addr, sizeof(addr_str)),
pid);
return &(entry->addrs[i].addr);
}
}
mutex_unlock(&entry->mutex);
return NULL;
}