2 * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
5 * Redistribution and use in source and binary forms, with or without modification,
6 * are permitted provided that the following conditions are met:
8 * 1. Redistributions of source code must retain the above copyright notice,
9 * this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright notice,
11 * this list of conditions and the following disclaimer in the documentation
12 * and/or other materials provided with the distribution.
13 * 3. The name of the author may not be used to endorse or promote products
14 * derived from this software without specific prior written permission.
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
17 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
18 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
19 * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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21 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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23 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
24 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
27 * This file is part of the lwIP TCP/IP stack.
29 * Author: Adam Dunkels <adam@sics.se>
37 #include "lwip/memp.h"
38 #include "lwip/pbuf.h"
40 #include "netif/etharp.h"
43 #include "lwip/ip_frag.h"
47 #include "lwip/tcpip.h"
49 static void (* tcpip_init_done)(void *arg) = NULL;
50 static void *tcpip_init_done_arg;
51 static sys_mbox_t mbox;
54 static int tcpip_tcp_timer_active = 0;
57 tcpip_tcp_timer(void *arg)
61 /* call TCP timer handler */
63 /* timer still needed? */
64 if (tcp_active_pcbs || tcp_tw_pcbs) {
66 sys_timeout( TCP_TMR_INTERVAL, tcpip_tcp_timer, NULL);
69 tcpip_tcp_timer_active = 0;
75 tcp_timer_needed(void)
77 /* timer is off but needed again? */
78 if (!tcpip_tcp_timer_active && (tcp_active_pcbs || tcp_tw_pcbs)) {
79 /* enable and start timer */
80 tcpip_tcp_timer_active = 1;
81 sys_timeout( TCP_TMR_INTERVAL, tcpip_tcp_timer, NULL);
91 LWIP_DEBUGF(TCPIP_DEBUG, ("tcpip: ip_reass_tmr()\n"));
93 sys_timeout( IP_TMR_INTERVAL, ip_timer, NULL);
100 LWIP_DEBUGF(TCPIP_DEBUG, ("tcpip: etharp_tmr()\n"));
102 sys_timeout( ARP_TMR_INTERVAL, arp_timer, NULL);
107 dhcp_timer_coarse(void *arg)
109 LWIP_DEBUGF(TCPIP_DEBUG, ("tcpip: dhcp_coarse_tmr()\n"));
111 sys_timeout(DHCP_COARSE_TIMER_SECS*1000, dhcp_timer_coarse, NULL);
115 dhcp_timer_fine(void *arg)
117 LWIP_DEBUGF(TCPIP_DEBUG, ("tcpip: dhcp_fine_tmr()\n"));
119 sys_timeout(DHCP_FINE_TIMER_MSECS, dhcp_timer_fine, NULL);
123 #if ETHARP_TCPIP_ETHINPUT
125 ethernet_input(struct pbuf *p, struct netif *netif)
127 struct eth_hdr* ethhdr;
129 /* points to packet payload, which starts with an Ethernet header */
132 switch (htons(ethhdr->type)) {
135 #if ETHARP_TRUST_IP_MAC
136 /* update ARP table */
137 etharp_ip_input( netif, p);
139 /* skip Ethernet header */
140 pbuf_header(p, -sizeof(struct eth_hdr));
141 /* pass to IP layer */
146 /* pass p to ARP module */
147 etharp_arp_input(netif, (struct eth_addr*)(netif->hwaddr), p);
156 #endif /* ETHARP_TCPIP_ETHINPUT */
159 tcpip_thread(void *arg)
161 struct tcpip_msg *msg;
164 sys_timeout( IP_TMR_INTERVAL, ip_timer, NULL);
166 sys_timeout( ARP_TMR_INTERVAL, arp_timer, NULL);
168 sys_timeout(DHCP_COARSE_TIMER_SECS*1000, dhcp_timer_coarse, NULL);
169 sys_timeout(DHCP_FINE_TIMER_MSECS, dhcp_timer_fine, NULL);
172 if (tcpip_init_done != NULL) {
173 tcpip_init_done(tcpip_init_done_arg);
176 while (1) { /* MAIN Loop */
177 sys_mbox_fetch(mbox, (void *)&msg);
180 LWIP_DEBUGF(TCPIP_DEBUG, ("tcpip_thread: API message %p\n", (void *)msg));
181 api_msg_input(msg->msg.apimsg);
184 #if ETHARP_TCPIP_INPUT
185 case TCPIP_MSG_INPUT:
186 LWIP_DEBUGF(TCPIP_DEBUG, ("tcpip_thread: IP packet %p\n", (void *)msg));
187 ip_input(msg->msg.inp.p, msg->msg.inp.netif);
189 #endif /* ETHARP_TCPIP_INPUT */
191 #if ETHARP_TCPIP_ETHINPUT
192 case TCPIP_MSG_ETHINPUT:
193 LWIP_DEBUGF(TCPIP_DEBUG, ("tcpip_thread: Ethernet packet %p\n", (void *)msg));
194 ethernet_input(msg->msg.inp.p, msg->msg.inp.netif);
196 #endif /* ETHARP_TCPIP_ETHINPUT */
198 case TCPIP_MSG_CALLBACK:
199 LWIP_DEBUGF(TCPIP_DEBUG, ("tcpip_thread: CALLBACK %p\n", (void *)msg));
200 msg->msg.cb.f(msg->msg.cb.ctx);
205 memp_free(MEMP_TCPIP_MSG, msg);
209 #if ETHARP_TCPIP_INPUT
211 tcpip_input(struct pbuf *p, struct netif *inp)
213 struct tcpip_msg *msg;
215 msg = memp_malloc(MEMP_TCPIP_MSG);
221 msg->type = TCPIP_MSG_INPUT;
223 msg->msg.inp.netif = inp;
224 sys_mbox_post(mbox, msg);
227 #endif /* ETHARP_TCPIP_INPUT */
229 #if ETHARP_TCPIP_ETHINPUT
231 tcpip_ethinput(struct pbuf *p, struct netif *inp)
233 struct tcpip_msg *msg;
235 msg = memp_malloc(MEMP_TCPIP_MSG);
241 msg->type = TCPIP_MSG_ETHINPUT;
243 msg->msg.inp.netif = inp;
244 sys_mbox_post(mbox, msg);
247 #endif /* ETHARP_TCPIP_ETHINPUT */
250 tcpip_callback(void (*f)(void *ctx), void *ctx)
252 struct tcpip_msg *msg;
254 msg = memp_malloc(MEMP_TCPIP_MSG);
259 msg->type = TCPIP_MSG_CALLBACK;
261 msg->msg.cb.ctx = ctx;
262 sys_mbox_post(mbox, msg);
267 tcpip_apimsg(struct api_msg *apimsg)
269 struct tcpip_msg *msg;
270 msg = memp_malloc(MEMP_TCPIP_MSG);
274 msg->type = TCPIP_MSG_API;
275 msg->msg.apimsg = apimsg;
276 sys_mbox_post(mbox, msg);
280 tcpip_init(void (* initfunc)(void *), void *arg)
290 tcpip_init_done = initfunc;
291 tcpip_init_done_arg = arg;
292 mbox = sys_mbox_new();
293 sys_thread_new(tcpip_thread, NULL, TCPIP_THREAD_PRIO);