Introduction of sequential-API build variant, better thread safety (lwIP only)
This commit is contained in:
Joseph Henry
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ext/lwip-contrib/ports/unix/minimal/main.c
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ext/lwip-contrib/ports/unix/minimal/main.c
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/*
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* Copyright (c) 2001-2003 Swedish Institute of Computer Science.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
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* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
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* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
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* OF SUCH DAMAGE.
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*
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* This file is part of the lwIP TCP/IP stack.
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*
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* Author: Adam Dunkels <adam@sics.se>
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* RT timer modifications by Christiaan Simons
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*/
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#include <unistd.h>
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#include <getopt.h>
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#include <string.h>
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#include "lwip/init.h"
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#include "lwip/debug.h"
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#include "lwip/mem.h"
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#include "lwip/memp.h"
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#include "lwip/sys.h"
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#include "lwip/timeouts.h"
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#include "lwip/stats.h"
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#include "lwip/ip.h"
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#include "lwip/ip4_frag.h"
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#include "lwip/udp.h"
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#include "lwip/tcp.h"
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#include "netif/tapif.h"
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#include "netif/etharp.h"
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#include "lwip/apps/snmp.h"
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#include "lwip/apps/snmp_mib2.h"
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#include "apps/snmp_private_mib/private_mib.h"
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#include "apps/udpecho_raw/udpecho_raw.h"
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#include "apps/tcpecho_raw/tcpecho_raw.h"
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/* (manual) host IP configuration */
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static ip4_addr_t ipaddr, netmask, gw;
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#if LWIP_SNMP
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/* SNMP trap destination cmd option */
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static unsigned char trap_flag;
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static ip_addr_t trap_addr;
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static const struct snmp_mib *mibs[] = {
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&mib2,
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&mib_private
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};
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#endif
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/* nonstatic debug cmd option, exported in lwipopts.h */
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unsigned char debug_flags;
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#if LWIP_SNMP
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/* enable == 1, disable == 2 */
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u8_t snmpauthentraps_set = 2;
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#endif
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static struct option longopts[] = {
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/* turn on debugging output (if build with LWIP_DEBUG) */
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{"debug", no_argument, NULL, 'd'},
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/* help */
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{"help", no_argument, NULL, 'h'},
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/* gateway address */
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{"gateway", required_argument, NULL, 'g'},
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/* ip address */
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{"ipaddr", required_argument, NULL, 'i'},
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/* netmask */
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{"netmask", required_argument, NULL, 'm'},
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/* ping destination */
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{"trap_destination", required_argument, NULL, 't'},
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/* new command line options go here! */
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{NULL, 0, NULL, 0}
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};
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#define NUM_OPTS ((sizeof(longopts) / sizeof(struct option)) - 1)
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static void
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usage(void)
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{
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unsigned char i;
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printf("options:\n");
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for (i = 0; i < NUM_OPTS; i++) {
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printf("-%c --%s\n",longopts[i].val, longopts[i].name);
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}
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}
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int
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main(int argc, char **argv)
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{
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struct netif netif;
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int ch;
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char ip_str[16] = {0}, nm_str[16] = {0}, gw_str[16] = {0};
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/* startup defaults (may be overridden by one or more opts) */
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IP4_ADDR(&gw, 192,168,0,1);
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IP4_ADDR(&ipaddr, 192,168,0,2);
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IP4_ADDR(&netmask, 255,255,255,0);
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#if LWIP_SNMP
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trap_flag = 0;
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#endif
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/* use debug flags defined by debug.h */
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debug_flags = LWIP_DBG_OFF;
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while ((ch = getopt_long(argc, argv, "dhg:i:m:t:", longopts, NULL)) != -1) {
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switch (ch) {
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case 'd':
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debug_flags |= (LWIP_DBG_ON|LWIP_DBG_TRACE|LWIP_DBG_STATE|LWIP_DBG_FRESH|LWIP_DBG_HALT);
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break;
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case 'h':
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usage();
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exit(0);
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break;
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case 'g':
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ip4addr_aton(optarg, &gw);
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break;
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case 'i':
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ip4addr_aton(optarg, &ipaddr);
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break;
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case 'm':
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ip4addr_aton(optarg, &netmask);
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break;
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case 't':
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#if LWIP_SNMP
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trap_flag = !0;
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/* @todo: remove this authentraps tweak
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when we have proper SET & non-volatile mem */
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snmpauthentraps_set = 1;
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ipaddr_aton(optarg, &trap_addr);
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strncpy(ip_str, ipaddr_ntoa(&trap_addr),sizeof(ip_str));
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printf("SNMP trap destination %s\n", ip_str);
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#endif
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break;
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default:
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usage();
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break;
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}
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}
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argc -= optind;
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argv += optind;
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strncpy(ip_str, ip4addr_ntoa(&ipaddr), sizeof(ip_str));
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strncpy(nm_str, ip4addr_ntoa(&netmask), sizeof(nm_str));
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strncpy(gw_str, ip4addr_ntoa(&gw), sizeof(gw_str));
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printf("Host at %s mask %s gateway %s\n", ip_str, nm_str, gw_str);
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#ifdef PERF
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perf_init("/tmp/minimal.perf");
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#endif /* PERF */
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lwip_init();
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printf("TCP/IP initialized.\n");
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netif_add(&netif, &ipaddr, &netmask, &gw, NULL, tapif_init, ethernet_input);
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netif_set_default(&netif);
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netif_set_up(&netif);
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#if LWIP_IPV6
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netif_create_ip6_linklocal_address(&netif, 1);
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#endif
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#if LWIP_SNMP
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/* initialize our private example MIB */
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lwip_privmib_init();
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/* snmp_trap_dst_ip_set(0,&trap_addr); */
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/* snmp_trap_dst_enable(0,trap_flag); */
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#if SNMP_LWIP_MIB2
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#if SNMP_USE_NETCONN
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snmp_threadsync_init(&snmp_mib2_lwip_locks, snmp_mib2_lwip_synchronizer);
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#endif
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snmp_mib2_set_syscontact_readonly((const u8_t*)"root", NULL);
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snmp_mib2_set_syslocation_readonly((const u8_t*)"lwIP development PC", NULL);
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snmp_mib2_set_sysdescr((const u8_t*)"minimal example", NULL);
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#endif /* SNMP_LWIP_MIB2 */
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/* snmp_set_snmpenableauthentraps(&snmpauthentraps_set); */
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snmp_set_mibs(mibs, LWIP_ARRAYSIZE(mibs));
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snmp_init();
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#endif /* LWIP_SNMP */
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udpecho_raw_init();
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tcpecho_raw_init();
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printf("Applications started.\n");
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while (1) {
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/* poll netif, pass packet to lwIP */
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tapif_select(&netif);
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sys_check_timeouts();
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}
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return 0;
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}
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