/* | |
* Copyright (c) 2001-2004 Swedish Institute of Computer Science. | |
* All rights reserved. | |
* | |
* Redistribution and use in source and binary forms, with or without modification, | |
* are permitted provided that the following conditions are met: | |
* | |
* 1. Redistributions of source code must retain the above copyright notice, | |
* this list of conditions and the following disclaimer. | |
* 2. Redistributions in binary form must reproduce the above copyright notice, | |
* this list of conditions and the following disclaimer in the documentation | |
* and/or other materials provided with the distribution. | |
* 3. The name of the author may not be used to endorse or promote products | |
* derived from this software without specific prior written permission. | |
* | |
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED | |
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF | |
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT | |
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | |
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT | |
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | |
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN | |
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING | |
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY | |
* OF SUCH DAMAGE. | |
* | |
* This file is part of the lwIP TCP/IP stack. | |
* | |
* Author: Adam Dunkels <adam@sics.se> | |
* | |
*/ | |
#include "lwip/opt.h" | |
#include "lwip/sys.h" | |
#include "lwip/memp.h" | |
#include "lwip/pbuf.h" | |
#include "lwip/ip.h" | |
#include "lwip/ip_frag.h" | |
#include "lwip/udp.h" | |
#include "lwip/tcp.h" | |
#include "lwip/tcpip.h" | |
static void (* tcpip_init_done)(void *arg) = NULL; | |
static void *tcpip_init_done_arg; | |
static sys_mbox_t mbox; | |
#if LWIP_TCP | |
static int tcpip_tcp_timer_active = 0; | |
static void | |
tcpip_tcp_timer(void *arg) | |
{ | |
(void)arg; | |
/* call TCP timer handler */ | |
tcp_tmr(); | |
/* timer still needed? */ | |
if (tcp_active_pcbs || tcp_tw_pcbs) { | |
/* restart timer */ | |
sys_timeout(TCP_TMR_INTERVAL, tcpip_tcp_timer, NULL); | |
} else { | |
/* disable timer */ | |
tcpip_tcp_timer_active = 0; | |
} | |
} | |
#if !NO_SYS | |
void | |
tcp_timer_needed(void) | |
{ | |
/* timer is off but needed again? */ | |
if (!tcpip_tcp_timer_active && (tcp_active_pcbs || tcp_tw_pcbs)) { | |
/* enable and start timer */ | |
tcpip_tcp_timer_active = 1; | |
sys_timeout(TCP_TMR_INTERVAL, tcpip_tcp_timer, NULL); | |
} | |
} | |
#endif /* !NO_SYS */ | |
#endif /* LWIP_TCP */ | |
#if IP_REASSEMBLY | |
static void | |
ip_timer(void *data) | |
{ | |
LWIP_DEBUGF(TCPIP_DEBUG, ("tcpip: ip_reass_tmr()\n")); | |
ip_reass_tmr(); | |
sys_timeout(1000, ip_timer, NULL); | |
} | |
#endif | |
static void | |
tcpip_thread(void *arg) | |
{ | |
struct tcpip_msg *msg; | |
(void)arg; | |
ip_init(); | |
#if LWIP_UDP | |
udp_init(); | |
#endif | |
#if LWIP_TCP | |
tcp_init(); | |
#endif | |
#if IP_REASSEMBLY | |
sys_timeout(1000, ip_timer, NULL); | |
#endif | |
if (tcpip_init_done != NULL) { | |
tcpip_init_done(tcpip_init_done_arg); | |
} | |
while (1) { /* MAIN Loop */ | |
sys_mbox_fetch(mbox, (void *)&msg); | |
switch (msg->type) { | |
case TCPIP_MSG_API: | |
LWIP_DEBUGF(TCPIP_DEBUG, ("tcpip_thread: API message %p\n", (void *)msg)); | |
api_msg_input(msg->msg.apimsg); | |
break; | |
case TCPIP_MSG_INPUT: | |
LWIP_DEBUGF(TCPIP_DEBUG, ("tcpip_thread: IP packet %p\n", (void *)msg)); | |
ip_input(msg->msg.inp.p, msg->msg.inp.netif); | |
break; | |
case TCPIP_MSG_CALLBACK: | |
LWIP_DEBUGF(TCPIP_DEBUG, ("tcpip_thread: CALLBACK %p\n", (void *)msg)); | |
msg->msg.cb.f(msg->msg.cb.ctx); | |
break; | |
default: | |
break; | |
} | |
memp_free(MEMP_TCPIP_MSG, msg); | |
} | |
} | |
err_t | |
tcpip_input(struct pbuf *p, struct netif *inp) | |
{ | |
struct tcpip_msg *msg; | |
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; | |
} | |
err_t | |
tcpip_callback(void (*f)(void *ctx), void *ctx) | |
{ | |
struct tcpip_msg *msg; | |
msg = memp_malloc(MEMP_TCPIP_MSG); | |
if (msg == NULL) { | |
return ERR_MEM; | |
} | |
msg->type = TCPIP_MSG_CALLBACK; | |
msg->msg.cb.f = f; | |
msg->msg.cb.ctx = ctx; | |
sys_mbox_post(mbox, msg); | |
return ERR_OK; | |
} | |
void | |
tcpip_apimsg(struct api_msg *apimsg) | |
{ | |
struct tcpip_msg *msg; | |
msg = memp_malloc(MEMP_TCPIP_MSG); | |
if (msg == NULL) { | |
memp_free(MEMP_API_MSG, apimsg); | |
return; | |
} | |
msg->type = TCPIP_MSG_API; | |
msg->msg.apimsg = apimsg; | |
sys_mbox_post(mbox, msg); | |
} | |
void | |
tcpip_init(void (* initfunc)(void *), void *arg) | |
{ | |
tcpip_init_done = initfunc; | |
tcpip_init_done_arg = arg; | |
mbox = sys_mbox_new(); | |
sys_thread_new(tcpip_thread, NULL, TCPIP_THREAD_PRIO); | |
} | |