Пример #1
0
/* Ping using the socket ip */
static err_t
ping_send(int s, ip_addr_t *addr)
{
  int err;
  struct icmp_echo_hdr *iecho;
  struct sockaddr_in to;
  size_t ping_size = sizeof(struct icmp_echo_hdr) + PING_DATA_SIZE;
  LWIP_ASSERT("ping_size is too big", ping_size <= 0xffff);

  iecho = (struct icmp_echo_hdr *)mem_malloc((mem_size_t)ping_size);
  if (!iecho) {
    return ERR_MEM;
  }

  ping_prepare_echo(iecho, (u16_t)ping_size);

  to.sin_len = sizeof(to);
  to.sin_family = AF_INET;
  inet_addr_from_ipaddr(&to.sin_addr, addr);

  err = lwip_sendto(s, iecho, ping_size, 0, (struct sockaddr*)&to, sizeof(to));

  mem_free(iecho);

  return (err ? ERR_OK : ERR_VAL);
}
Пример #2
0
static void
ping_send(struct raw_pcb *raw, ip_addr_t *addr)
{
  struct pbuf *p;
  struct icmp_echo_hdr *iecho;
  size_t ping_size = sizeof(struct icmp_echo_hdr) + PING_DATA_SIZE;

  LWIP_DEBUGF( PING_DEBUG, ("ping: send "));
  ip_addr_debug_print(PING_DEBUG, addr);
  LWIP_DEBUGF( PING_DEBUG, ("\n"));
  LWIP_ASSERT("ping_size <= 0xffff", ping_size <= 0xffff);

  p = pbuf_alloc(PBUF_IP, (u16_t)ping_size, PBUF_RAM);
  if (!p) {
    return;
  }
  if ((p->len == p->tot_len) && (p->next == NULL)) {
    iecho = (struct icmp_echo_hdr *)p->payload;

    ping_prepare_echo(iecho, (u16_t)ping_size);

    raw_sendto(raw, p, addr);
    ping_time = sys_now();
  }
  pbuf_free(p);
}
Пример #3
0
static void ping_send(struct raw_pcb *raw, struct ping_info_t* ping_info)
{
        struct pbuf *p;
        struct icmp_echo_hdr *iecho;

        if (!(p = pbuf_alloc(PBUF_IP, ping_info->size, PBUF_RAM))) {
                return;
        }
        if ((p->len == p->tot_len) && (p->next == NULL)) {
                iecho = p->payload;

                ping_prepare_echo(iecho, ping_info);
                raw_sendto(raw, p, &ping_info->destination);

                if (!ping_info->first_tx_tm)
                        ping_info->first_tx_tm = timer_get_ms();
                ping_info->last_tx_tm = timer_get_ms();
                ping_info->num_tx++;
        }
        pbuf_free(p);
}