Ping#

The Ping component implements a ping service using the ICMPv6 protocol. It can send ICMPv6 Echo Request, receive corresponding responses, and calculate round-trip latency.

Applications can emit a single ping packet using the sl_wisun_ping_request() API. To receive the pong response, the sl_wisun_ping_response() API is called. The sl_wisun_ping() function offers a straightforward solution for periodic ping packet transmission and reception. To halt the process, use the sl_wisun_ping_stop() function.

Ping test parameters such as size, number of pings sent, and timeout for response absence are configurable. Initialization of the component is done by calling the sl_wisun_ping_init() function.

The following example demonstrates how the ping request can be called:

#include "sl_wisun_ping.h"

static void ping_remote(void) {
  int32_t ret = 0;
  sockaddr_in6_t remote_addr = { 0 };
  sl_status_t status = SL_STATUS_FAIL;

  // Create address structure from ping
  ret = inet_pton(AF_INET6,
                  "2001:db8::1",
                  &remote_addr.sin6_addr);

  if (ret != 1) {
    // Error handling
    return;
  }

  // Send and receive ping requests and responses
  status = sl_wisun_ping(&remote_addr, // Ping remote_addr IPv6 address
                         10, // with 10 packets
                         512, // packet length is 512 bytes
                         NULL, // Custom statitistic handler is not required
                         NULL); // Request/Response handler is not required
  if (status != SL_STATUS_OK) {
    // Error handling
    return;
  }
}

Modules#

Configurations

Type definitions