int main (int argc, char** argv)
{
char descDocUrl[7+15+1+5+1+sizeof(g_vars.descDocName)+1]; // http://ipaddr:port/docName<null>
char intIpAddress[16]; // Server internal ip address
sigset_t sigsToCatch;
int ret, signum, arg = 1, foreground = 0;
if (argc < 3 || argc > 4) {
printf("Usage: upnpd [-f] <external ifname> <internal ifname>\n");
printf(" -f\tdon't daemonize\n");
printf("Example: upnpd ppp0 eth0\n");
exit(0);
}
parseConfigFile(&g_vars);
// check for '-f' option
if (strcmp(argv[arg], "-f") == 0) {
foreground = 1;
arg++;
}
// Save interface names for later use
strncpy(g_vars.extInterfaceName, argv[arg++], IFNAMSIZ);
strncpy(g_vars.intInterfaceName, argv[arg++], IFNAMSIZ);
// Get the internal ip address to start the daemon on
if (GetIpAddressStr(intIpAddress, g_vars.intInterfaceName) == 0) {
fprintf(stderr, "Invalid internal interface name '%s'\n", g_vars.intInterfaceName);
exit(EXIT_FAILURE);
}
if (!foreground) {
struct rlimit resourceLimit = { 0, 0 };
pid_t pid, sid;
unsigned int i;
// Put igd in the background as a daemon process.
pid = fork();
if (pid < 0)
{
perror("Error forking a new process.");
exit(EXIT_FAILURE);
}
if (pid > 0)
exit(EXIT_SUCCESS);
// become session leader
if ((sid = setsid()) < 0)
{
perror("Error running setsid");
exit(EXIT_FAILURE);
}
// close all file handles
resourceLimit.rlim_max = 0;
ret = getrlimit(RLIMIT_NOFILE, &resourceLimit);
if (ret == -1) /* shouldn't happen */
{
perror("error in getrlimit()");
exit(EXIT_FAILURE);
}
if (0 == resourceLimit.rlim_max)
{
fprintf(stderr, "Max number of open file descriptors is 0!!\n");
exit(EXIT_FAILURE);
}
for (i = 0; i < resourceLimit.rlim_max; i++)
close(i);
// fork again so child can never acquire a controlling terminal
pid = fork();
if (pid < 0)
{
perror("Error forking a new process.");
exit(EXIT_FAILURE);
}
if (pid > 0)
exit(EXIT_SUCCESS);
if ((chdir("/")) < 0)
{
perror("Error setting root directory");
exit(EXIT_FAILURE);
}
}
umask(0);
// End Daemon initialization
openlog("upnpd", LOG_CONS | LOG_NDELAY | LOG_PID | (foreground ? LOG_PERROR : 0), LOG_LOCAL6);
// Initialize UPnP SDK on the internal Interface
trace(3, "Initializing UPnP SDK ... ");
if ( (ret = UpnpInit(intIpAddress,0) ) != UPNP_E_SUCCESS)
{
syslog (LOG_ERR, "Error Initializing UPnP SDK on IP %s ",intIpAddress);
syslog (LOG_ERR, " UpnpInit returned %d", ret);
UpnpFinish();
exit(1);
}
trace(2, "UPnP SDK Successfully Initialized.");
// Set the Device Web Server Base Directory
trace(3, "Setting the Web Server Root Directory to %s",g_vars.xmlPath);
if ( (ret = UpnpSetWebServerRootDir(g_vars.xmlPath)) != UPNP_E_SUCCESS )
{
syslog (LOG_ERR, "Error Setting Web Server Root Directory to: %s", g_vars.xmlPath);
syslog (LOG_ERR, " UpnpSetWebServerRootDir returned %d", ret);
UpnpFinish();
exit(1);
}
trace(2, "Succesfully set the Web Server Root Directory.");
//initialize the timer thread for expiration of mappings
if (ExpirationTimerThreadInit()!=0) {
syslog(LOG_ERR,"ExpirationTimerInit failed");
UpnpFinish();
exit(1);
}
// Form the Description Doc URL to pass to RegisterRootDevice
sprintf(descDocUrl, "http://%s:%d/%s", UpnpGetServerIpAddress(),
UpnpGetServerPort(), g_vars.descDocName);
// Register our IGD as a valid UPnP Root device
trace(3, "Registering the root device with descDocUrl %s", descDocUrl);
if ( (ret = UpnpRegisterRootDevice(descDocUrl, EventHandler, &deviceHandle,
&deviceHandle)) != UPNP_E_SUCCESS )
{
syslog(LOG_ERR, "Error registering the root device with descDocUrl: %s", descDocUrl);
syslog(LOG_ERR, " UpnpRegisterRootDevice returned %d", ret);
UpnpFinish();
exit(1);
}
trace(2, "IGD root device successfully registered.");
// Initialize the state variable table.
StateTableInit(descDocUrl);
// Record the startup time, for uptime
startup_time = time(NULL);
// Send out initial advertisements of our device's services with timeouts of 30 minutes
if ( (ret = UpnpSendAdvertisement(deviceHandle, 1800) != UPNP_E_SUCCESS ))
{
syslog(LOG_ERR, "Error Sending Advertisements. Exiting ...");
UpnpFinish();
exit(1);
}
trace(2, "Advertisements Sent. Listening for requests ... ");
// Loop until program exit signals received
do {
sigemptyset(&sigsToCatch);
sigaddset(&sigsToCatch, SIGINT);
sigaddset(&sigsToCatch, SIGTERM);
sigaddset(&sigsToCatch, SIGUSR1);
pthread_sigmask(SIG_SETMASK, &sigsToCatch, NULL);
sigwait(&sigsToCatch, &signum);
trace(3, "Caught signal %d...\n", signum);
switch (signum) {
case SIGUSR1:
DeleteAllPortMappings();
break;
default:
break;
}
} while (signum!=SIGTERM && signum!=SIGINT);
trace(2, "Shutting down on signal %d...\n", signum);
// Cleanup UPnP SDK and free memory
DeleteAllPortMappings();
ExpirationTimerThreadShutdown();
UpnpUnRegisterRootDevice(deviceHandle);
UpnpFinish();
// Exit normally
return (0);
}
int main (int argc, char** argv)
{
int ret = UPNP_E_SUCCESS;
int signal;
char descDocUrl[50];
char descDocName[20];
char xmlPath[50];
char intIpAddress[32]; // Server internal ip address
char extIpAddress[32];
sigset_t sigsToCatch;
pid_t pid,sid;
if (argc != 3)
{
printf("Usage: upnpd <external ifname> <internal ifname>\n");
printf("Example: upnpd ppp0 eth0\n");
printf("Example: upnpd eth1 eth0\n");
exit(0);
}
parseConfigFile(&g_forwardRules,&g_debug,g_iptables,
g_forwardChainName,g_preroutingChainName,
g_upstreamBitrate,g_downstreamBitrate,
descDocName,xmlPath);
// Save the interface names for later uses
strcpy(g_extInterfaceName, argv[1]);
strcpy(g_intInterfaceName, argv[2]);
// Get the internal and external ip address to start the daemon on
/* Added by Yanhua */
while( (GetIpAddressStr(intIpAddress, g_intInterfaceName)==0) ||
(GetIpAddressStr(extIpAddress, g_extInterfaceName)==0) )
{
sleep(2);
}
#if 0
// Put igd in the background as a daemon process.
pid = vfork();
if (pid < 0)
{
perror("Error forking a new process.");
exit(EXIT_FAILURE);
}
if (pid > 0)
exit(EXIT_SUCCESS);
if ((sid = setsid()) < 0)
{
perror("Error running setsid");
exit(EXIT_FAILURE);
}
if ((chdir("/")) < 0)
{
perror("Error setting root directory");
exit(EXIT_FAILURE);
}
umask(0);
close(STDERR_FILENO);
close (STDIN_FILENO);
close (STDOUT_FILENO);
#endif
// End Daemon initialization
// Initialize UPnP SDK on the internal Interface
if (g_debug) syslog(LOG_DEBUG, "Initializing UPnP SDK ... ");
if ( (ret = UpnpInit(intIpAddress,0) ) != UPNP_E_SUCCESS)
{
syslog (LOG_ERR, "Error Initializing UPnP SDK on IP %s ",intIpAddress);
syslog (LOG_ERR, " UpnpInit returned %d", ret);
UpnpFinish();
exit(1);
}
if (g_debug) syslog(LOG_DEBUG, "UPnP SDK Successfully Initialized.");
// Set the Device Web Server Base Directory
if (g_debug) syslog(LOG_DEBUG, "Setting the Web Server Root Directory to %s",xmlPath);
if ( (ret = UpnpSetWebServerRootDir(xmlPath)) != UPNP_E_SUCCESS )
{
syslog (LOG_ERR, "Error Setting Web Server Root Directory to: %s", xmlPath);
syslog (LOG_ERR, " UpnpSetWebServerRootDir returned %d", ret);
UpnpFinish();
exit(1);
}
if (g_debug) syslog(LOG_DEBUG, "Succesfully set the Web Server Root Directory.");
// Form the Description Doc URL to pass to RegisterRootDevice
sprintf(descDocUrl, "http://%s:%d/%s", UpnpGetServerIpAddress(),
UpnpGetServerPort(), descDocName);
// Register our IGD as a valid UPnP Root device
if (g_debug) syslog(LOG_DEBUG, "Registering the root device with descDocUrl %s", descDocUrl);
if ( (ret = UpnpRegisterRootDevice(descDocUrl, EventHandler, &deviceHandle,
&deviceHandle)) != UPNP_E_SUCCESS )
{
syslog(LOG_ERR, "Error registering the root device with descDocUrl: %s", descDocUrl);
syslog(LOG_ERR, " UpnpRegisterRootDevice returned %d", ret);
UpnpFinish();
exit(1);
}
syslog (LOG_DEBUG, "IGD root device successfully registered.");
// Initialize the state variable table.
StateTableInit(descDocUrl);
// Record the startup time, for uptime
/* Modified by Yanhua */
#if 0
startup_time = time(NULL);
#endif
{
struct sysinfo info;
sysinfo(&info);
startup_time = (long int)info.uptime;
}
// Send out initial advertisements of our device's services with timeouts of 30 minutes
if ( (ret = UpnpSendAdvertisement(deviceHandle, 1800) != UPNP_E_SUCCESS ))
{
syslog(LOG_ERR, "Error Sending Advertisements. Exiting ...");
UpnpFinish();
exit(1);
}
syslog(LOG_DEBUG, "Advertisements Sent. Listening for requests ... ");
// Loop until program exit signals recieved
sigemptyset(&sigsToCatch);
sigaddset(&sigsToCatch, SIGINT);
sigaddset(&sigsToCatch, SIGTERM);
//sigwait(&sigsToCatch, &signal);
pthread_sigmask(SIG_SETMASK, &sigsToCatch, NULL);
sigwait(&sigsToCatch, &signal);
syslog(LOG_DEBUG, "Shutting down on signal %d...\n", signal);
// Cleanup UPnP SDK and free memory
pmlist_FreeList();
UpnpUnRegisterRootDevice(deviceHandle);
UpnpFinish();
// Exit normally
return (1);
}
int main (int argc, char** argv)
{
int ret = UPNP_E_SUCCESS;
int signal;
char descDocUrl[50];
char descDocName[20];
char xmlPath[50];
char intIpAddress[16]; // Server internal ip address
char extIpAddress[16]; // Server internal ip address
sigset_t sigsToCatch;
FILE *f;
pid_t pid,sid;
if (argc != 3)
{
printf("Usage: upnpd <external ifname> <internal ifname>\n");
printf("Example: upnpd ppp0 eth0\n");
printf("Example: upnpd eth1 eth0\n");
exit(0);
}
parseConfigFile(&g_forwardRules,&g_debug,g_iptables,
g_forwardChainName,g_preroutingChainName,
g_upstreamBitrate,g_downstreamBitrate,
descDocName,xmlPath);
// Save the interface names for later uses
strcpy(g_extInterfaceName, argv[1]);
strcpy(g_intInterfaceName, argv[2]);
openlog("upnpd", LOG_PID | LOG_CONS, LOG_USER);
// Get the internal ip address to start the daemon on
GetIpAddressStr(intIpAddress, g_intInterfaceName);
GetIpAddressStr(extIpAddress, g_extInterfaceName);
// Put igd in the background as a daemon process.
pid = fork();
if (pid < 0)
{
perror("Error forking a new process.");
cleanup();
exit(EXIT_FAILURE);
}
if (pid > 0)
exit(EXIT_SUCCESS);
/* if we are here, we know we are the demonized version */
//open a state file
f = fopen(STATE_FILE, "w");
if (!f) {
syslog(LOG_ERR, "failed to open %s: %m", STATE_FILE);
} else {
fprintf(f, "external %s %s\ninternal %s %s\n", g_extInterfaceName,
extIpAddress, g_intInterfaceName, intIpAddress);
fclose(f);
}
atexit(cleanup);
if ((sid = setsid()) < 0)
{
perror("Error running setsid");
exit(EXIT_FAILURE);
}
if ((chdir("/")) < 0)
{
perror("Error setting root directory");
exit(EXIT_FAILURE);
}
umask(0);
close(STDERR_FILENO);
close (STDIN_FILENO);
close (STDOUT_FILENO);
// End Daemon initialization
// Initialize UPnP SDK on the internal Interface
if (g_debug) syslog(LOG_DEBUG, "Initializing UPnP SDK ... ");
if ( (ret = UpnpInit(intIpAddress,0) ) != UPNP_E_SUCCESS)
{
syslog (LOG_ERR, "Error Initializing UPnP SDK on IP %s ",intIpAddress);
syslog (LOG_ERR, " UpnpInit returned %d", ret);
UpnpFinish();
exit(1);
}
if (g_debug) syslog(LOG_DEBUG, "UPnP SDK Successfully Initialized.");
// Set the Device Web Server Base Directory
if (g_debug) syslog(LOG_DEBUG, "Setting the Web Server Root Directory to %s",xmlPath);
if ( (ret = UpnpSetWebServerRootDir(xmlPath)) != UPNP_E_SUCCESS )
{
syslog (LOG_ERR, "Error Setting Web Server Root Directory to: %s", xmlPath);
syslog (LOG_ERR, " UpnpSetWebServerRootDir returned %d", ret);
UpnpFinish();
exit(1);
}
if (g_debug) syslog(LOG_DEBUG, "Succesfully set the Web Server Root Directory.");
// Form the Description Doc URL to pass to RegisterRootDevice
sprintf(descDocUrl, "http://%s:%d/%s", UpnpGetServerIpAddress(),
UpnpGetServerPort(), descDocName);
// Register our IGD as a valid UPnP Root device
if (g_debug) syslog(LOG_DEBUG, "Registering the root device with descDocUrl %s", descDocUrl);
if ( (ret = UpnpRegisterRootDevice(descDocUrl, EventHandler, &deviceHandle,
&deviceHandle)) != UPNP_E_SUCCESS )
{
syslog(LOG_ERR, "Error registering the root device with descDocUrl: %s", descDocUrl);
syslog(LOG_ERR, " UpnpRegisterRootDevice returned %d", ret);
UpnpFinish();
exit(1);
}
syslog (LOG_DEBUG, "IGD root device successfully registered.");
// Initialize the state variable table.
StateTableInit(descDocUrl);
// Record the startup time, for uptime
startup_time = time(NULL);
// Send out initial advertisements of our device's services with timeouts of 30 minutes
if ( (ret = UpnpSendAdvertisement(deviceHandle, 1800) != UPNP_E_SUCCESS ))
{
syslog(LOG_ERR, "Error Sending Advertisements. Exiting ...");
UpnpFinish();
exit(1);
}
syslog(LOG_DEBUG, "Advertisements Sent. Listening for requests ... ");
// Loop until program exit signals recieved
// and now also recreate the current portmappings on SIGUSR1
while (1) {
sigemptyset(&sigsToCatch);
sigaddset(&sigsToCatch, SIGINT);
sigaddset(&sigsToCatch, SIGTERM);
sigaddset(&sigsToCatch, SIGQUIT);
sigaddset(&sigsToCatch, SIGABRT);
sigaddset(&sigsToCatch, SIGHUP);
sigaddset(&sigsToCatch, SIGUSR1);
sigaddset(&sigsToCatch, SIGUSR2);
//sigwait(&sigsToCatch, &signal);
pthread_sigmask(SIG_SETMASK, &sigsToCatch, NULL);
sigwait(&sigsToCatch, &signal);
if (signal == SIGUSR1) {
syslog(LOG_DEBUG, "signal SIGUSR1 received - rebuilding portmappings\n");
//rebuild all the portmappings
pmlist_RecreateAll();
} else if (signal == SIGHUP || signal == SIGUSR2) {
//nothing
} else {
break;
}
}
syslog(LOG_DEBUG, "Shutting down on signal %d...\n", signal);
// Cleanup UPnP SDK and free memory
pmlist_FreeList();
UpnpUnRegisterRootDevice(deviceHandle);
UpnpFinish();
// Exit normally
return (1);
}