miniupnp/miniupnpc-libevent/upnpc-libevent.c

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/* $Id: upnpc-libevent.c,v 1.11 2014/12/02 13:33:42 nanard Exp $ */
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/* miniupnpc-libevent
* Copyright (c) 2008-2014, Thomas BERNARD <miniupnp@free.fr>
* http://miniupnp.free.fr/ or http://miniupnp.tuxfamily.org/
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */
#include <stdio.h>
#include <string.h>
#include <signal.h>
#include <unistd.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
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#include "miniupnpc-libevent.h"
static struct event_base *base = NULL;
static char local_address[32];
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static void sighandler(int signal)
{
(void)signal;
/*printf("signal %d\n", signal);*/
if(base != NULL)
event_base_loopbreak(base);
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}
/* ready callback */
static void ready(int code, upnpc_t * p, upnpc_device_t * d, void * data)
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{
(void)data; (void)p;
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if(code == 200) {
printf("READY ! %d\n", code);
printf(" root_desc_location='%s'\n", d->root_desc_location);
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/* 1st request */
upnpc_get_status_info(d);
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} else {
printf("DISCOVER ERROR : %d\n", code);
switch(code) {
case UPNPC_ERR_NO_DEVICE_FOUND:
printf("UPNPC_ERR_NO_DEVICE_FOUND\n");
break;
case UPNPC_ERR_ROOT_DESC_ERROR:
printf("UPNPC_ERR_ROOT_DESC_ERROR\n");
break;
case 404:
printf("Root desc not found (404)\n");
break;
default:
printf("unknown error\n");
}
}
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}
static enum {
EGetStatusInfo = 0,
EGetExtIp,
EGetMaxRate,
EAddPortMapping,
EDeletePortMapping,
EFinished
} state = EGetStatusInfo;
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/* soap callback */
static void soap(int code, upnpc_t * p, upnpc_device_t * d, void * data)
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{
(void)data; (void)p;
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printf("SOAP ! %d\n", code);
if(code == 200) {
switch(state) {
case EGetStatusInfo:
printf("ConnectionStatus=%s\n", GetValueFromNameValueList(&d->soap_response_data, "NewConnectionStatus"));
printf("LastConnectionError=%s\n", GetValueFromNameValueList(&d->soap_response_data, "NewLastConnectionError"));
printf("Uptime=%s\n", GetValueFromNameValueList(&d->soap_response_data, "NewUptime"));
upnpc_get_external_ip_address(d);
state = EGetExtIp;
break;
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case EGetExtIp:
printf("ExternalIpAddress=%s\n", GetValueFromNameValueList(&d->soap_response_data, "NewExternalIPAddress"));
upnpc_get_link_layer_max_rate(d);
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state = EGetMaxRate;
break;
case EGetMaxRate:
printf("DownStream MaxBitRate = %s\t", GetValueFromNameValueList(&d->soap_response_data, "NewLayer1DownstreamMaxBitRate"));
upnpc_add_port_mapping(d, NULL, 60001, 60002, local_address, "TCP", "test port mapping", 0);
printf("UpStream MaxBitRate = %s\n", GetValueFromNameValueList(&d->soap_response_data, "NewLayer1UpstreamMaxBitRate"));
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state = EAddPortMapping;
break;
case EAddPortMapping:
printf("AddPortMapping OK!\n");
upnpc_delete_port_mapping(d, NULL, 60001, "TCP");
state = EDeletePortMapping;
break;
case EDeletePortMapping:
printf("DeletePortMapping OK!\n");
state = EFinished;
break;
default:
printf("EFinished : breaking\n");
event_base_loopbreak(base);
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}
} else {
printf("SOAP error :\n");
printf(" faultcode='%s'\n", GetValueFromNameValueList(&d->soap_response_data, "faultcode"));
printf(" faultstring='%s'\n", GetValueFromNameValueList(&d->soap_response_data, "faultstring"));
printf(" errorCode=%s\n", GetValueFromNameValueList(&d->soap_response_data, "errorCode"));
printf(" errorDescription='%s'\n", GetValueFromNameValueList(&d->soap_response_data, "errorDescription"));
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event_base_loopbreak(base);
}
}
/* use a UDP "connection" to 8.8.8.8
* to retrieve local address */
int find_local_address(void)
{
int s;
struct sockaddr_in local, remote;
socklen_t len;
s = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
if(s < 0) {
perror("socket");
return -1;
}
memset(&local, 0, sizeof(local));
memset(&remote, 0, sizeof(remote));
/* bind to local port 4567 */
local.sin_family = AF_INET;
local.sin_port = htons(4567);
local.sin_addr.s_addr = htonl(INADDR_ANY);
if(bind(s, (struct sockaddr *)&local, sizeof(local)) < 0) {
perror("bind");
return -1;
}
/* "connect" google's DNS server at 8.8.8.8 port 4567 */
remote.sin_family = AF_INET;
remote.sin_port = htons(4567);
remote.sin_addr.s_addr = inet_addr("8.8.8.8");
if(connect(s, (struct sockaddr *)&remote, sizeof(remote)) < 0) {
perror("connect");
return -1;
}
len = sizeof(local);
if(getsockname(s, (struct sockaddr *)&local, &len) < 0) {
perror("getsockname");
return -1;
}
if(inet_ntop(AF_INET, &(local.sin_addr), local_address, sizeof(local_address)) == NULL) {
perror("inet_ntop");
return -1;
}
printf("local address : %s\n", local_address);
close(s);
return 0;
}
/* program entry point */
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int main(int argc, char * * argv)
{
struct sigaction sa;
upnpc_t upnp;
char * multicast_if = NULL;
if(argc > 1) {
multicast_if = argv[1];
}
memset(&sa, 0, sizeof(struct sigaction));
sa.sa_handler = sighandler;
if(sigaction(SIGINT, &sa, NULL) < 0) {
perror("sigaction");
}
if(find_local_address() < 0) {
fprintf(stderr, "failed to get local address\n");
return 1;
}
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#ifdef DEBUG
event_enable_debug_mode();
#if LIBEVENT_VERSION_NUMBER >= 0x02010100
event_enable_debug_logging(EVENT_DBG_ALL); /* Libevent 2.1.1 */
#endif /* LIBEVENT_VERSION_NUMBER >= 0x02010100 */
#endif /* DEBUG */
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printf("Using libevent %s\n", event_get_version());
if(LIBEVENT_VERSION_NUMBER != event_get_version_number()) {
fprintf(stderr, "WARNING build using libevent %s", LIBEVENT_VERSION);
}
base = event_base_new();
if(base == NULL) {
fprintf(stderr, "event_base_new() failed\n");
return 1;
}
#ifdef DEBUG
printf("Using Libevent with backend method %s.\n",
event_base_get_method(base));
#endif /* DEBUG */
if(upnpc_init(&upnp, base, multicast_if, ready, soap, &upnp) != UPNPC_OK) {
fprintf(stderr, "upnpc_init() failed\n");
return 1;
}
event_base_dispatch(base); /* TODO : check return value */
printf("finishing...\n");
upnpc_finalize(&upnp);
event_base_free(base);
#if LIBEVENT_VERSION_NUMBER >= 0x02010100
libevent_global_shutdown(); /* Libevent 2.1.1 */
#endif
return 0;
}