/**@brief ICMP6 module event handler.
*
* @details Callback registered with the ICMP6 module to receive asynchronous events from
* the module, if the ICMP6_ENABLE_ALL_MESSAGES_TO_APPLICATION constant is not zero
* or the ICMP6_ENABLE_ND6_MESSAGES_TO_APPLICATION constant is not zero.
*/
uint32_t icmp6_handler(iot_interface_t * p_interface,
ipv6_header_t * p_ip_header,
icmp6_header_t * p_icmp_header,
uint32_t process_result,
iot_pbuffer_t * p_rx_packet)
{
APPL_LOG("[APPL]: Got ICMP6 Application Handler Event on interface 0x%p\r\n", p_interface);
APPL_LOG("[APPL]: Source IPv6 Address: ");
APPL_ADDR(p_ip_header->srcaddr);
APPL_LOG("[APPL]: Destination IPv6 Address: ");
APPL_ADDR(p_ip_header->destaddr);
APPL_LOG("[APPL]: Process result = 0x%08lx\r\n", process_result);
switch (p_icmp_header->type)
{
case ICMP6_TYPE_ECHO_REPLY:
APPL_LOG("[APPL]: ICMP6 Message Type = Echo Reply\r\n");
if (m_app_state != APP_STATE_IDLE)
{
// Invert LED_FOUR.
LEDS_INVERT(LED_FOUR);
}
// Reset echo request retransmission number.
m_echo_req_retry_count = 0;
break;
default:
break;
}
return NRF_SUCCESS;
}
/**@brief ICMP6 module event handler.
*
* @details Callback registered with the ICMP6 module to receive asynchronous events from
* the module, if the ICMP6_ENABLE_ALL_MESSAGES_TO_APPLICATION constant is not zero
* or the ICMP6_ENABLE_ND6_MESSAGES_TO_APPLICATION constant is not zero.
*/
uint32_t icmp6_handler(iot_interface_t * p_interface,
ipv6_header_t * p_ip_header,
icmp6_header_t * p_icmp_header,
uint32_t process_result,
iot_pbuffer_t * p_rx_packet)
{
uint32_t err_code;
APPL_LOG("[APPL]: Got ICMP6 Application Handler Event on interface 0x%p\r\n", p_interface);
APPL_LOG("[APPL]: Source IPv6 Address: ");
APPL_ADDR(p_ip_header->srcaddr);
APPL_LOG("[APPL]: Destination IPv6 Address: ");
APPL_ADDR(p_ip_header->destaddr);
APPL_LOG("[APPL]: Process result = 0x%08lx\r\n", process_result);
switch(p_icmp_header->type)
{
case ICMP6_TYPE_DESTINATION_UNREACHABLE:
APPL_LOG("[APPL]: ICMP6 Message Type = Destination Unreachable Error\r\n");
break;
case ICMP6_TYPE_PACKET_TOO_LONG:
APPL_LOG("[APPL]: ICMP6 Message Type = Packet Too Long Error\r\n");
break;
case ICMP6_TYPE_TIME_EXCEED:
APPL_LOG("[APPL]: ICMP6 Message Type = Time Exceed Error\r\n");
break;
case ICMP6_TYPE_PARAMETER_PROBLEM:
APPL_LOG("[APPL]: ICMP6 Message Type = Parameter Problem Error\r\n");
break;
case ICMP6_TYPE_ECHO_REQUEST:
APPL_LOG("[APPL]: ICMP6 Message Type = Echo Request\r\n");
m_display_state = LEDS_TX_ECHO_RESPONSE;
LEDS_OFF(LED_TWO);
err_code = app_timer_start(m_echo_ind_timer, (LED_BLINK_INTERVAL / 3), NULL);
APP_ERROR_CHECK(err_code);
break;
case ICMP6_TYPE_ECHO_REPLY:
APPL_LOG("[APPL]: ICMP6 Message Type = Echo Reply\r\n");
break;
case ICMP6_TYPE_ROUTER_SOLICITATION:
APPL_LOG("[APPL]: ICMP6 Message Type = Router Solicitation\r\n");
break;
case ICMP6_TYPE_ROUTER_ADVERTISEMENT:
APPL_LOG("[APPL]: ICMP6 Message Type = Router Advertisement\r\n");
break;
case ICMP6_TYPE_NEIGHBOR_SOLICITATION:
APPL_LOG("[APPL]: ICMP6 Message Type = Neighbor Solicitation\r\n");
break;
case ICMP6_TYPE_NEIGHBOR_ADVERTISEMENT:
APPL_LOG("[APPL]: ICMP6 Message Type = Neighbor Advertisement\r\n");
break;
default:
break;
}
return NRF_SUCCESS;
}
/**@brief DNS6 module event handler.
*
* @details Callback registered with the DNS6 module to receive asynchronous events from
* the module for registering query.
*/
static void app_dns_handler(uint32_t process_result,
const char * p_hostname,
ipv6_addr_t * p_addr,
uint16_t addr_count)
{
uint32_t index;
if (m_app_state != APP_STATE_RESOLVING)
{
// Exit if it's not in resolving state.
return;
}
APPL_LOG("[APPL]: DNS Response for hostname: %s, with %d IPv6 addresses and status 0x%08lX\r\n",
p_hostname, addr_count, process_result);
if(process_result == NRF_SUCCESS)
{
for (index = 0; index < addr_count; index++)
{
APPL_LOG("[APPL]: [%ld] IPv6 Address: ", index);
APPL_ADDR(p_addr[index]);
// Store only first given address, but print all of them.
if(index == 0)
{
memcpy(m_hostname_address.u8, p_addr[0].u8, IPV6_ADDR_SIZE);
// Change application state.
m_app_state = APP_STATE_PINGING;
// Turn on LED_THREE
LEDS_ON(LED_THREE);
}
}
}
else
{
// Start application state machine from beginning.
m_app_state = APP_STATE_QUERYING;
}
}
/**@brief ICMP6 module event handler.
*
* @details Callback registered with the ICMP6 module to receive asynchronous events from
* the module, if the ICMP6_ENABLE_ALL_MESSAGES_TO_APPLICATION constant is not zero
* or the ICMP6_ENABLE_ND6_MESSAGES_TO_APPLICATION constant is not zero.
*/
uint32_t icmp6_handler(iot_interface_t * p_interface,
ipv6_header_t * p_ip_header,
icmp6_header_t * p_icmp_header,
uint32_t process_result,
iot_pbuffer_t * p_rx_packet)
{
uint32_t err_code;
APPL_LOG("[APPL]: Got ICMP6 Application Handler Event on interface 0x%p\r\n", p_interface);
APPL_LOG("[APPL]: Source IPv6 Address: ");
APPL_ADDR(p_ip_header->srcaddr);
APPL_LOG("[APPL]: Destination IPv6 Address: ");
APPL_ADDR(p_ip_header->destaddr);
APPL_LOG("[APPL]: Process result = 0x%08lx\r\n", process_result);
switch(p_icmp_header->type)
{
case ICMP6_TYPE_DESTINATION_UNREACHABLE:
APPL_LOG("[APPL]: ICMP6 Message Type = Destination Unreachable Error\r\n");
break;
case ICMP6_TYPE_PACKET_TOO_LONG:
APPL_LOG("[APPL]: ICMP6 Message Type = Packet Too Long Error\r\n");
break;
case ICMP6_TYPE_TIME_EXCEED:
APPL_LOG("[APPL]: ICMP6 Message Type = Time Exceed Error\r\n");
break;
case ICMP6_TYPE_PARAMETER_PROBLEM:
APPL_LOG("[APPL]: ICMP6 Message Type = Parameter Problem Error\r\n");
break;
case ICMP6_TYPE_ECHO_REQUEST:
APPL_LOG("[APPL]: ICMP6 Message Type = Echo Request\r\n");
break;
case ICMP6_TYPE_ECHO_REPLY:
APPL_LOG("[APPL]: ICMP6 Message Type = Echo Reply\r\n");
ipv6_addr_t server_ipv6_addr;
memset(&server_ipv6_addr, 0, sizeof(ipv6_addr_t));
memcpy(&server_ipv6_addr.u8[0], (uint8_t []){SERVER_IPV6_ADDRESS}, IPV6_ADDR_SIZE);
if (0 == memcmp(&p_ip_header->srcaddr.u8[0], &server_ipv6_addr.u8[0], IPV6_ADDR_SIZE))
{
// Echo Response received from peer, start sending UDP6 packets.
m_node_state = APP_STATE_PEER_REACHABLE;
m_display_state = LEDS_TX_UDP_PACKET;
err_code = app_timer_start(m_tx_node_timer, TX_INTERVAL, NULL);
APP_ERROR_CHECK(err_code);
}
break;
case ICMP6_TYPE_ROUTER_SOLICITATION:
APPL_LOG("[APPL]: ICMP6 Message Type = Router Solicitation\r\n");
break;
case ICMP6_TYPE_ROUTER_ADVERTISEMENT:
APPL_LOG("[APPL]: ICMP6 Message Type = Router Advertisement\r\n");
break;
case ICMP6_TYPE_NEIGHBOR_SOLICITATION:
APPL_LOG("[APPL]: ICMP6 Message Type = Neighbor Solicitation\r\n");
break;
case ICMP6_TYPE_NEIGHBOR_ADVERTISEMENT:
APPL_LOG("[APPL]: ICMP6 Message Type = Neighbor Advertisement\r\n");
break;
default:
break;
}
return NRF_SUCCESS;
}