int is_our_address(ipv6_addr_t *addr)
{
ipv6_net_if_ext_t *net_if_ext;
ipv6_net_if_addr_t *myaddr;
uint8_t prefix, suffix;
int if_id = -1;
DEBUGF("Is this my addres: %s?\n", ipv6_addr_to_str(addr_str, IPV6_MAX_ADDR_STR_LEN, addr));
while ((if_id = net_if_iter_interfaces(if_id)) >= 0) {
net_if_ext = ipv6_net_if_get_ext(if_id);
myaddr = NULL;
prefix = net_if_ext->prefix / 8;
suffix = IPV6_ADDR_LEN - prefix;
while ((myaddr = (ipv6_net_if_addr_t *)net_if_iter_addresses(if_id,
(net_if_addr_t **) &myaddr)) != NULL) {
DEBUGF("\tCompare with: %s?\n", ipv6_addr_to_str(addr_str, IPV6_MAX_ADDR_STR_LEN, (ipv6_addr_t*) myaddr->addr_data));
if ((ipv6_get_addr_match(myaddr->addr_data, addr) >= net_if_ext->prefix) &&
(memcmp(&addr->uint8[prefix], &myaddr->addr_data->uint8[prefix], suffix) == 0)) {
return 1;
}
}
}
return 0;
}
ipv6_net_if_hit_t *ipv6_net_if_addr_match(ipv6_net_if_hit_t *hit,
const ipv6_addr_t *addr)
{
int if_id = -1;
ipv6_net_if_addr_t *addr_entry = NULL;
while ((if_id = net_if_iter_interfaces(if_id)) >= 0) {
while (net_if_iter_addresses(if_id, (net_if_addr_t **) &addr_entry) != NULL) {
if (addr_entry->addr_protocol & NET_IF_L3P_IPV6) {
uint8_t byte_al = addr_entry->addr_len / 8;
uint8_t mask[] = {0x00, 0x80, 0xc0, 0xe0,
0xf0, 0xf8, 0xfc, 0xfe
};
if (memcmp(addr_entry->addr_data, addr, byte_al) == 0 &&
(addr_entry->addr_len % 8 == 0 ||
((addr_entry->addr_data->uint8[byte_al] - addr->uint8[byte_al]) & mask[addr_entry->addr_len - (byte_al * 8)]))) {
hit->if_id = if_id;
hit->addr = addr_entry;
return hit;
}
}
}
}
return NULL;
}
/**
* @brief Check if the given IPv6 address is assigned to any configured
* interface
*
* @param[in] addr The IPv6 address to check
*
* @return 1 If *addr* is assigned to at least one interface
* @return 0 If *addr* is not assigned to any interface
* @return -1 If no IPv6 address is configured to any interface
*/
static int is_our_address(ipv6_addr_t *addr)
{
int if_id = -1;
int if_counter = -1;
DEBUGF("Is this my addres: %s?\n", ipv6_addr_to_str(addr_str, IPV6_MAX_ADDR_STR_LEN, addr));
while ((if_id = net_if_iter_interfaces(if_id)) >= 0) {
ipv6_net_if_ext_t *net_if_ext = ipv6_net_if_get_ext(if_id);
ipv6_net_if_addr_t *myaddr = NULL;
uint8_t prefix = net_if_ext->prefix / 8;
uint8_t suffix = IPV6_ADDR_LEN - prefix;
while ((myaddr = (ipv6_net_if_addr_t *)net_if_iter_addresses(if_id,
(net_if_addr_t **) &myaddr)) != NULL) {
if_counter++;
DEBUGF("\tCompare with: %s?\n", ipv6_addr_to_str(addr_str, IPV6_MAX_ADDR_STR_LEN, (ipv6_addr_t*) myaddr->addr_data));
if ((ipv6_get_addr_match(myaddr->addr_data, addr) >= net_if_ext->prefix) &&
(memcmp(&addr->uint8[prefix], &myaddr->addr_data->uint8[prefix], suffix) == 0)) {
return 1;
}
}
}
/* return negative value if no address is configured so far */
if (if_counter >= 0) {
return 0;
}
return -1;
}
void ipv6_net_if_get_best_src_addr(ipv6_addr_t *src, const ipv6_addr_t *dest)
{
/* try to find best match if dest is not mcast or link local */
int if_id = 0; // TODO: get this somehow
uint8_t tmp = 0;
uint8_t bmatch = 0;
ipv6_net_if_addr_t *addr = NULL;
ipv6_net_if_addr_t *tmp_addr = NULL;
if (!(ipv6_addr_is_link_local(dest)) && !(ipv6_addr_is_multicast(dest))) {
while ((addr = (ipv6_net_if_addr_t *)net_if_iter_addresses(if_id,
(net_if_addr_t **)&addr))) {
if (addr->ndp_state == NDP_ADDR_STATE_PREFERRED) {
if (!ipv6_addr_is_link_local(addr->addr_data) &&
!ipv6_addr_is_multicast(addr->addr_data) &&
!ipv6_addr_is_unique_local_unicast(addr->addr_data)) {
tmp = ipv6_get_addr_match(dest, addr->addr_data);
if (tmp >= bmatch) {
bmatch = tmp;
tmp_addr = addr;
}
}
}
}
}
else {
while ((addr = (ipv6_net_if_addr_t *)net_if_iter_addresses(if_id,
(net_if_addr_t **)&addr))) {
if (addr->ndp_state == NDP_ADDR_STATE_PREFERRED &&
ipv6_addr_is_link_local(addr->addr_data) &&
!ipv6_addr_is_multicast(addr->addr_data)) {
tmp_addr = addr;
}
}
}
if (tmp_addr == NULL) {
memset(src, 0, 16);
}
else {
memcpy(src, tmp_addr->addr_data, 16);
}
}
int sixlowpan_lowpan_border_init(int if_id)
{
ipv6_net_if_addr_t *addr = NULL;
uint8_t abr_addr_initialized = 0;
serial_reader_pid = thread_create(
serial_reader_stack, READER_STACK_SIZE,
PRIORITY_MAIN - 1, CREATE_STACKTEST,
serial_reader_f, "serial_reader");
ip_process_pid = thread_create(ip_process_buf, IP_PROCESS_STACKSIZE,
PRIORITY_MAIN - 1, CREATE_STACKTEST,
border_process_lowpan,
"border_process_lowpan");
if (ip_process_pid < 0) {
return 0;
}
if (!sixlowpan_lowpan_init_interface(if_id)) {
return 0;
}
while (net_if_iter_addresses(if_id, (net_if_addr_t **) &addr)) {
if (!ipv6_addr_is_multicast(addr->addr_data) &&
!ipv6_addr_is_link_local(addr->addr_data) &&
!ipv6_addr_is_loopback(addr->addr_data) &&
!ipv6_addr_is_unique_local_unicast(addr->addr_data)) {
abr_addr_initialized = 1;
abr_addr = addr->addr_data;
break;
}
}
if (!abr_addr_initialized) {
DEBUG("sixlowpan_lowpan_border_init(): A prefix must be initialized to"
"interface %d first", if_id);
return 0;
}
ipv6_init_as_router();
return 1;
}
ipv6_net_if_hit_t *ipv6_net_if_addr_prefix_eq(ipv6_net_if_hit_t *hit,
ipv6_addr_t *addr)
{
int if_id = -1;
ipv6_net_if_addr_t *addr_entry = NULL;
while ((if_id = net_if_iter_interfaces(if_id)) >= 0) {
while (net_if_iter_addresses(if_id, (net_if_addr_t **) &addr_entry) != NULL) {
if (addr_entry->addr_protocol & NET_IF_L3P_IPV6) {
if (memcmp(addr_entry->addr_data, &addr, 8) == 0) {
hit->if_id = if_id;
hit->addr = addr_entry;
return hit;
}
}
}
}
return NULL;
}
int net_if_del_l3p_types(int if_id, net_if_l3p_t protocols)
{
net_if_addr_t *addr_ptr = NULL;
if (if_id < 0 || if_id >= NET_IF_MAX || !interfaces[if_id].initialized) {
DEBUG("Remove L3 protocols: No interface initialized with ID %d.\n", if_id);
return 0;
}
while (net_if_iter_addresses(if_id, &addr_ptr)) {
if (addr_ptr->addr_protocol & protocols) {
net_if_del_address(if_id, addr_ptr);
addr_ptr = NULL;
}
}
interfaces[if_id].protocols &= ~protocols;
return 1;
}
int test_net_if_del_address(int iface, net_if_addr_t *addr1,
net_if_addr_t *addr2)
{
int count = 0;
net_if_addr_t *addr_ptr = NULL;
if (net_if_del_address(iface + 1, addr1)) {
printf("FAILED: expected net_if_del_address(%d, %p) to fail.\n",
iface + 1, (void *)addr1);
return 0;
}
if (net_if_del_address(iface, NULL)) {
printf("FAILED: expected net_if_del_address(%d, NULL) to fail.\n",
iface);
return 0;
}
if (!net_if_del_address(iface, addr1)) {
printf("FAILED: Address deletion failed\n");
return 0;
}
while (net_if_iter_addresses(iface, &addr_ptr)) {
if (addr_ptr == addr1 || addr_ptr == addr2) {
count++;
}
}
if (count != 1) {
printf("FAILED: expected 1 address in iface's address list\n");
printf(" missing '%d'\n", 1 - count);
return 0;
}
return 1;
}
int is_our_address(ipv6_addr_t *addr)
{
ipv6_net_if_ext_t *net_if_ext;
ipv6_net_if_addr_t *myaddr;
uint8_t prefix, suffix;
int if_id = -1;
while ((if_id = net_if_iter_interfaces(if_id)) >= 0) {
net_if_ext = ipv6_net_if_get_ext(if_id);
myaddr = NULL;
prefix = net_if_ext->prefix / 8;
suffix = IPV6_ADDR_LEN - prefix;
while ((myaddr = (ipv6_net_if_addr_t *)net_if_iter_addresses(if_id,
(net_if_addr_t **) &myaddr)) != NULL) {
if ((ipv6_get_addr_match(myaddr->addr_data, addr) >= net_if_ext->prefix) &&
(memcmp(&addr->uint8[prefix], &myaddr->addr_data->uint8[prefix], suffix) == 0)) {
return 1;
}
}
}
return 0;
}
int main(void)
{
int iface;
char *addr1_data = "abcdefgh", *addr2_data = "12345678";
net_if_addr_t addr1 = {
.addr_next = NULL,
.addr_prev = NULL,
.addr_protocol = NET_IF_L3P_IPV6_MULTICAST,
.addr_data = (void *)addr1_data,
.addr_len = (strlen(addr1_data) + 1) * 8
};
net_if_addr_t addr2 = {
.addr_next = NULL,
.addr_prev = NULL,
.addr_protocol = NET_IF_L3P_IPV6_PREFIX,
.addr_data = (void *)addr2_data,
.addr_len = (strlen(addr2_data) + 1) * 8
};
uint16_t own = 1, target = 2;
net_if_eui64_t eui64;
iface = initialize_tests();
if (!test_net_if_initialization(iface)) {
printf("FAILED: test_net_if_initialization()\n");
return -1;
}
if (!test_net_if_get_add_l3p_types(iface)) {
printf("FAILED: test_net_if_get_add_l3p_types()\n");
return -1;
}
if (!test_net_if_add_address(iface, &addr1, &addr2)) {
printf("FAILED: test_net_if_add_address()\n");
return -1;
}
if (!test_net_if_del_address(iface, &addr1, &addr2)) {
printf("FAILED: test_net_if_del_address()\n");
return -1;
}
if (!test_net_if_get_set_hardware_address(iface, own)) {
printf("FAILED: test_net_if_get_set_hardware_address()\n");
return -1;
}
if (!test_net_if_get_set_pan_id(iface)) {
printf("FAILED: test_net_if_get_set_pan_id()\n");
return -1;
}
if (!test_net_if_get_set_eui64(iface, &eui64, own)) {
printf("FAILED: test_net_if_get_set_eui64()\n");
return -1;
}
int count = net_if_send_packet(iface, target, "Test", 4);
printf("Count was %i after net_if_send_packet()\n", count);
printf("All test ran successfully.\n");
return 0;
}
int initialize_tests(void)
{
int iface;
#ifndef MODULE_AUTO_INIT
transceiver_init(TRANSCEIVER);
transceiver_start();
net_if_init();
iface = net_if_init_interface(0, TRANSCEIVER);
return iface;
#else
iface = -1;
while ((iface = net_if_iter_interfaces(iface)) >= 0) {
return iface;
}
return iface;
#endif
}
int test_net_if_initialization(int iface)
{
net_if_addr_t *addr_ptr = NULL;
if (net_if_get_l3p_types(iface)) {
printf("FAILED: No L3 type expected on interface %d.\n", iface);
return 0;
}
if (net_if_iter_addresses(iface + 1, &addr_ptr)) {
printf("FAILED: Expected error on interface '%d'\n", iface + 1);
return 0;
}
if (net_if_iter_addresses(iface, &addr_ptr)) {
printf("FAILED: Expected error on interface '%d'\n", iface);
return 0;
}
return 1;
}
int test_net_if_add_address(int iface, net_if_addr_t *addr1,
net_if_addr_t *addr2)
{
int count = 0;
net_if_addr_t *addr_ptr = NULL;
if (net_if_add_address(iface + 1, addr1)) {
printf("FAILED: expected net_if_add_address(%d, %p) to fail.\n",
iface + 1, (void *)addr1);
return 0;
}
if (net_if_add_address(iface, NULL)) {
printf("FAILED: expected net_if_add_address(%d, NULL) to fail.\n",
iface);
return 0;
}
if (!net_if_add_address(iface, addr1)) {
printf("FAILED: Address addition failed\n");
return 0;
}
if (!(net_if_get_l3p_types(iface) & NET_IF_L3P_IPV6_MULTICAST)) {
printf("FAILED: L3 type IPv6 multicast expected on interface %d.\n", iface);
return 0;
}
if (net_if_get_l3p_types(iface) & ~NET_IF_L3P_IPV6_MULTICAST) {
printf("FAILED: L3 type other than IPv6 multicast not expected on interface %d.\n",
iface);
return 0;
}
if (!net_if_add_address(iface, addr2)) {
printf("FAILED: Address addition failed\n");
return 0;
}
if (!(net_if_get_l3p_types(iface) & NET_IF_L3P_IPV6_MULTICAST)) {
printf("FAILED: L3 type IPv6 multcast expected on interface %d.\n", iface);
return 0;
}
if (!(net_if_get_l3p_types(iface) & NET_IF_L3P_IPV6_PREFIX)) {
printf("FAILED: L3 type IPv6 prefix expected on interface %d.\n", iface);
return 0;
}
if (net_if_get_l3p_types(iface) & ~(NET_IF_L3P_IPV6_MULTICAST | NET_IF_L3P_IPV6_PREFIX)) {
printf("FAILED: L3 type other than IPv6 multicast and IPv6 prefix not expected on interface %d.\n",
iface);
return 0;
}
while (net_if_iter_addresses(iface, &addr_ptr)) {
if (addr_ptr == addr1 || addr_ptr == addr2) {
count++;
}
}
if (count != 2) {
printf("FAILED: expected 2 addresses in iface's address list once respectively\n");
printf(" missing '%d'\n", 2 - count);
return 0;
}
return 1;
}