1 /*
2 * Demo for libcoap on lwIP
3 *
4 * partially copied from lwip-contrib/ports/unix/proj/minimal/main.c
5 *
6 *
7 * Copyright (c) 2001-2003 Swedish Institute of Computer Science.
8 * All rights reserved.
9 *
10 * Redistribution and use in source and binary forms, with or without modification,
11 * are permitted provided that the following conditions are met:
12 *
13 * 1. Redistributions of source code must retain the above copyright notice,
14 * this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright notice,
16 * this list of conditions and the following disclaimer in the documentation
17 * and/or other materials provided with the distribution.
18 * 3. The name of the author may not be used to endorse or promote products
19 * derived from this software without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
22 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
23 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
24 * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
25 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
26 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
29 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
30 * OF SUCH DAMAGE.
31 *
32 * Author: Adam Dunkels <adam@sics.se>
33 * RT timer modifications by Christiaan Simons
34 * lwip adaptions: chrysn <chrysn@fsfe.org>
35 * also, https://savannah.nongnu.org/bugs/?40245 was applied */
36
37 #include <lwip/init.h>
38 #include <lwip/timers.h>
39
40 #include <mintapif.h>
41 #include <netif/etharp.h>
42
43 #include "timer.h"
44 #include <signal.h>
45
46 #include "server-coap.h"
47
48 static ip_addr_t ipaddr, netmask, gw;
49
50 int
main(int argc,char ** argv)51 main(int argc, char **argv)
52 {
53 struct netif netif;
54 sigset_t mask, oldmask, empty;
55
56 /* startup defaults (may be overridden by one or more opts) */
57 IP4_ADDR(&gw, 192,168,0,1);
58 IP4_ADDR(&ipaddr, 192,168,0,2);
59 IP4_ADDR(&netmask, 255,255,255,0);
60
61 lwip_init();
62
63 printf("TCP/IP initialized.\n");
64
65 netif_add(&netif, &ipaddr, &netmask, &gw, NULL, mintapif_init, ethernet_input);
66 netif.flags |= NETIF_FLAG_ETHARP;
67 netif_set_default(&netif);
68 netif_set_up(&netif);
69 #if LWIP_IPV6
70 netif_create_ip6_linklocal_address(&netif, 1);
71 #endif
72
73 timer_init();
74
75 sys_timeouts_init();
76
77 /* start applications here */
78
79 server_coap_init();
80
81 printf("Applications started.\n");
82
83
84 while (1) {
85
86 /* poll for input packet and ensure
87 select() or read() arn't interrupted */
88 sigemptyset(&mask);
89 sigaddset(&mask, SIGALRM);
90 sigprocmask(SIG_BLOCK, &mask, &oldmask);
91
92 /* start of critical section,
93 poll netif, pass packet to lwIP */
94 if (mintapif_select(&netif) > 0)
95 {
96 /* work, immediatly end critical section
97 hoping lwIP ended quickly ... */
98 sigprocmask(SIG_SETMASK, &oldmask, NULL);
99 }
100 else
101 {
102 /* no work, wait a little (10 msec) for SIGALRM */
103 sigemptyset(&empty);
104 sigsuspend(&empty);
105 /* ... end critical section */
106 sigprocmask(SIG_SETMASK, &oldmask, NULL);
107 }
108
109 sys_check_timeouts();
110
111 server_coap_poll();
112 }
113
114 return 0;
115 }
116
