[lwip-devel] [bug #19347] netif_add & tcpip_init problem

[Frédéric Bernon]

Follow-up Comment #1, bug #19347 (project lwip):

A first thing to do will be to initialize in tcpip.c the mbox like this :

static sys_mbox_t mbox = SYS_MBOX_NULL;

and in each tcpip_xxx, check mbox like this :

err_t
tcpip_input(struct pbuf *p, struct netif *inp)
{
  struct tcpip_msg *msg;

  if (mbox != SYS_MBOX_NULL) {
    msg = memp_malloc(MEMP_TCPIP_MSG);
    if (msg == NULL) {
      pbuf_free(p);
      return ERR_MEM;
    }

    msg->type = TCPIP_MSG_INPUT;
    msg->msg.inp.p = p;
    msg->msg.inp.netif = inp;
    sys_mbox_post(mbox, msg);
  }

  return ERR_OK;
}

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