void avahi_initialise(void) {
int ret;
static int first = 1;
if (getenv("AVAHI_DEBUG")) {
db = 1;
}
if (first) {
int i;
for (i=0; i<NREG; i++) {
registered[i].name = NULL;
registered[i].host = NULL;
}
first = 0;
}
if (db) fprintf(stderr, "in avahi_initialise\n");
if (_poll) {
if (db) fprintf(stderr, " avahi_initialise: poll not null\n");
return;
}
if (! (_poll = avahi_threaded_poll_new()) ) {
rfbLog("warning: unable to open Avahi poll.\n");
return;
}
_client = avahi_client_new(avahi_threaded_poll_get(_poll),
0, NULL, NULL, &ret);
if (! _client) {
rfbLog("warning: unable to open Avahi client: %s\n",
avahi_strerror(ret));
avahi_threaded_poll_free(_poll);
_poll = NULL;
return;
}
if (avahi_threaded_poll_start(_poll) < 0) {
rfbLog("warning: unable to start Avahi poll.\n");
avahi_client_free(_client);
_client = NULL;
avahi_threaded_poll_free(_poll);
_poll = NULL;
return;
}
if (db) fprintf(stderr, "out avahi_initialise\n");
}
void avahi_cleanup(void) {
if (db) fprintf(stderr, "in avahi_cleanup\n");
if (!_client) {
if (db) fprintf(stderr, " avahi_cleanup client null\n");
return;
}
if (db) fprintf(stderr, " avahi_cleanup poll_lock\n");
avahi_threaded_poll_lock(_poll);
if (db) fprintf(stderr, " avahi_cleanup poll_stop\n");
signal(SIGALRM, avahi_timeout);
alarm(3);
avahi_threaded_poll_stop(_poll);
alarm(0);
signal(SIGALRM, SIG_DFL);
if (db) fprintf(stderr, " avahi_cleanup client_free\n");
avahi_client_free(_client);
_client = NULL;
if (db) fprintf(stderr, " avahi_cleanup poll_free\n");
avahi_threaded_poll_free(_poll);
_poll = NULL;
if (db) fprintf(stderr, "out avahi_cleanup\n");
}
CZeroconfAvahi::~CZeroconfAvahi()
{
CLog::Log(LOGDEBUG, "CZeroconfAvahi::~CZeroconfAvahi() Going down! cleaning up...");
if (mp_poll)
{
//normally we would stop the avahi thread here and do our work, but
//it looks like this does not work -> www.avahi.org/ticket/251
//so instead of calling
//avahi_threaded_poll_stop(mp_poll);
//we set m_shutdown=true, post an event and wait for it to stop itself
struct timeval tv = { 0, 0 }; //TODO: does tv survive the thread?
AvahiTimeout* lp_timeout;
{
ScopedEventLoopBlock l_block(mp_poll);
const AvahiPoll* cp_apoll = avahi_threaded_poll_get(mp_poll);
m_shutdown = true;
lp_timeout = cp_apoll->timeout_new(cp_apoll,
&tv,
shutdownCallback,
this);
}
//now wait for the thread to stop
assert(m_thread_id);
pthread_join(m_thread_id, NULL);
avahi_threaded_poll_get(mp_poll)->timeout_free(lp_timeout);
}
//free the client (frees all browsers, groups, ...)
if (mp_client)
avahi_client_free(mp_client);
if (mp_poll)
avahi_threaded_poll_free(mp_poll);
}
Publisher::~Publisher() {
stop();
if (client)
avahi_client_free(client);
if (poller)
avahi_threaded_poll_free( poller);
}
void dns_service_publisher_cleanup( void )
{
if( group )
{
avahi_entry_group_free( group );
group = NULL;
}
if( client)
{
avahi_client_free( client );
client = NULL;
}
if( threaded_poll )
{
avahi_threaded_poll_free( threaded_poll );
threaded_poll = NULL;
}
if( sd_name_copy )
{
avahi_free( sd_name_copy );
sd_name_copy = NULL;
}
if( sd_service_copy )
{
avahi_free( sd_service_copy );
sd_service_copy = NULL;
}
}
AvahiSession::AvahiSession()
: mPoll(0),
mClient(0),
mGroup(0),
mEntries(0),
mServiceName(0)
{
int err;
mServiceName = avahi_strdup(kSCRendezvousServiceName);
mPoll = avahi_threaded_poll_new();
if (!mPoll) {
scprintf("Zeroconf: failed to create poll API\n");
return;
}
mClient = avahi_client_new(
avahi_threaded_poll_get(mPoll),
(AvahiClientFlags)0, client_cb, this, &err);
if (!mClient) {
scprintf("Zeroconf: failed to create client: %s\n", avahi_strerror(err));
avahi_threaded_poll_free(mPoll);
mPoll = 0;
return;
}
avahi_threaded_poll_start(mPoll);
}
void AvahiQuerier::stop() {
assert(threadedPoll);
avahi_threaded_poll_stop(threadedPoll);
assert(client);
avahi_client_free(client);
avahi_threaded_poll_free(threadedPoll);
}
/*****************************************************************************
* Open: initialize and create stuff
*****************************************************************************/
static int Open( vlc_object_t *p_this )
{
services_discovery_t *p_sd = ( services_discovery_t* )p_this;
services_discovery_sys_t *p_sys;
int err;
p_sd->p_sys = p_sys = calloc( 1, sizeof( services_discovery_sys_t ) );
if( !p_sys )
return VLC_ENOMEM;
p_sd->description = _("Zeroconf network services");
vlc_dictionary_init( &p_sys->services_name_to_input_item, 1 );
p_sys->poll = avahi_threaded_poll_new();
if( p_sys->poll == NULL )
{
msg_Err( p_sd, "failed to create Avahi threaded poll" );
goto error;
}
p_sys->client = avahi_client_new( avahi_threaded_poll_get(p_sys->poll),
0, client_callback, p_sd, &err );
if( p_sys->client == NULL )
{
msg_Err( p_sd, "failed to create avahi client: %s",
avahi_strerror( err ) );
goto error;
}
for( unsigned i = 0; i < NB_PROTOCOLS; i++ )
{
AvahiServiceBrowser *sb;
sb = avahi_service_browser_new( p_sys->client, AVAHI_IF_UNSPEC,
AVAHI_PROTO_UNSPEC,
protocols[i].psz_service_name, NULL,
0, browse_callback, p_sd );
if( sb == NULL )
{
msg_Err( p_sd, "failed to create avahi service browser %s", avahi_strerror( avahi_client_errno(p_sys->client) ) );
goto error;
}
}
avahi_threaded_poll_start( p_sys->poll );
return VLC_SUCCESS;
error:
if( p_sys->client != NULL )
avahi_client_free( p_sys->client );
if( p_sys->poll != NULL )
avahi_threaded_poll_free( p_sys->poll );
vlc_dictionary_clear( &p_sys->services_name_to_input_item, NULL, NULL );
free( p_sys );
return VLC_EGENERIC;
}
/*****************************************************************************
* Open: initialize and create stuff
*****************************************************************************/
static int Open( vlc_object_t *p_this )
{
services_discovery_t *p_sd = ( services_discovery_t* )p_this;
services_discovery_sys_t *p_sys;
int err;
p_sd->p_sys = p_sys = calloc( 1, sizeof( services_discovery_sys_t ) );
if( !p_sys )
return VLC_ENOMEM;
vlc_dictionary_init( &p_sys->services_name_to_input_item, 1 );
p_sys->poll = avahi_threaded_poll_new();
if( p_sys->poll == NULL )
{
msg_Err( p_sd, "failed to create Avahi threaded poll" );
goto error;
}
p_sys->client = avahi_client_new( avahi_threaded_poll_get(p_sys->poll),
0, client_callback, p_sd, &err );
if( p_sys->client == NULL )
{
msg_Err( p_sd, "failed to create avahi client: %s",
avahi_strerror( err ) );
goto error;
}
p_sys->sb = avahi_service_browser_new( p_sys->client, AVAHI_IF_UNSPEC,
AVAHI_PROTO_UNSPEC,
"_vlc-http._tcp", NULL,
0, browse_callback, p_sd );
if( p_sys->sb == NULL )
{
msg_Err( p_sd, "failed to create avahi service browser" );
goto error;
}
return VLC_SUCCESS;
error:
if( p_sys->sb != NULL )
avahi_service_browser_free( p_sys->sb );
if( p_sys->client != NULL )
avahi_client_free( p_sys->client );
if( p_sys->poll != NULL )
avahi_threaded_poll_free( p_sys->poll );
vlc_dictionary_clear( &p_sys->services_name_to_input_item, NULL, NULL );
free( p_sys );
return VLC_EGENERIC;
}
/*****************************************************************************
* Close: cleanup
*****************************************************************************/
static void Close( vlc_object_t *p_this )
{
services_discovery_t *p_sd = ( services_discovery_t* )p_this;
services_discovery_sys_t *p_sys = p_sd->p_sys;
avahi_service_browser_free( p_sys->sb );
avahi_client_free( p_sys->client );
avahi_threaded_poll_free( p_sys->poll );
vlc_dictionary_clear( &p_sys->services_name_to_input_item, NULL, NULL );
free( p_sys );
}
// startAvahiClient initializes a poll object, and a client.
const char *startAvahiClient(AvahiThreadedPoll **threaded_poll, AvahiClient **client) {
*threaded_poll = avahi_threaded_poll_new();
if (!*threaded_poll) {
return avahi_strerror(avahi_client_errno(*client));
}
int error;
*client = avahi_client_new(avahi_threaded_poll_get(*threaded_poll),
AVAHI_CLIENT_NO_FAIL, handleClientStateChange, NULL, &error);
if (!*client) {
avahi_threaded_poll_free(*threaded_poll);
return avahi_strerror(error);
}
error = avahi_threaded_poll_start(*threaded_poll);
if (AVAHI_OK != error) {
avahi_client_free(*client);
avahi_threaded_poll_free(*threaded_poll);
return avahi_strerror(error);
}
return NULL;
}
static void
dnssdStop(void)
{
cupsd_printer_t *p; /* Current printer */
/*
* De-register the individual printers
*/
for (p = (cupsd_printer_t *)cupsArrayFirst(Printers);
p;
p = (cupsd_printer_t *)cupsArrayNext(Printers))
dnssdDeregisterPrinter(p, 1, 0);
/*
* Shutdown the rest of the service refs...
*/
dnssdDeregisterInstance(&WebIFSrv, 0);
# ifdef HAVE_DNSSD
cupsdRemoveSelect(DNSServiceRefSockFD(DNSSDMaster));
DNSServiceRefDeallocate(DNSSDMaster);
DNSSDMaster = NULL;
# else /* HAVE_AVAHI */
if (DNSSDMaster)
avahi_threaded_poll_stop(DNSSDMaster);
if (DNSSDClient)
{
avahi_client_free(DNSSDClient);
DNSSDClient = NULL;
}
if (DNSSDMaster)
{
avahi_threaded_poll_free(DNSSDMaster);
DNSSDMaster = NULL;
}
# endif /* HAVE_DNSSD */
cupsArrayDelete(DNSSDPrinters);
DNSSDPrinters = NULL;
DNSSDPort = 0;
}
/*
* Tries to shutdown this loop impl.
* Call this function from inside this thread.
*/
int av_zeroconf_unregister() {
LOG(log_debug, logtype_afpd, "av_zeroconf_unregister");
if (ctx) {
if (ctx->threaded_poll)
avahi_threaded_poll_stop(ctx->threaded_poll);
if (ctx->client)
avahi_client_free(ctx->client);
if (ctx->threaded_poll)
avahi_threaded_poll_free(ctx->threaded_poll);
free(ctx);
ctx = NULL;
}
return 0;
}
AvahiSession::~AvahiSession()
{
if (mClient) {
avahi_threaded_poll_stop(mPoll);
avahi_client_free(mClient);
avahi_threaded_poll_free(mPoll);
AvahiEntry* entry = mEntries;
while (entry) {
AvahiEntry* next = entry->mNext;
delete entry;
entry = next;
}
}
free(mServiceName);
}
/*
* Tries to shutdown this loop impl.
* Call this function from inside this thread.
*/
void tivo_bonjour_unregister(void)
{
DPRINTF(E_DEBUG, L_SSDP, "tivo_bonjour_unregister\n");
if (ctx.group)
{
avahi_entry_group_reset(ctx.group);
avahi_entry_group_free(ctx.group);
}
if (ctx.threaded_poll)
avahi_threaded_poll_stop(ctx.threaded_poll);
if (ctx.client)
avahi_client_free(ctx.client);
if (ctx.threaded_poll)
avahi_threaded_poll_free(ctx.threaded_poll);
}
void avahi_dacp_dont_monitor(rtsp_conn_info *conn) {
dacp_browser_struct *dbs = (dacp_browser_struct *)conn->mdns_private_pointer;
if (dbs) {
// stop and dispose of everything
if ((dbs)->service_poll)
avahi_threaded_poll_stop((dbs)->service_poll);
if ((dbs)->service_browser)
avahi_service_browser_free((dbs)->service_browser);
if ((dbs)->service_client)
avahi_client_free((dbs)->service_client);
if ((dbs)->service_poll)
avahi_threaded_poll_free((dbs)->service_poll);
free((char *)(dbs));
conn->mdns_private_pointer = NULL;
} else {
debug(1, "DHCP Monitor is not running.");
}
}
void
dnssd_shutdown() {
if (g_options.dnssd_data->DNSSDMaster) {
avahi_threaded_poll_stop(g_options.dnssd_data->DNSSDMaster);
dnssd_unregister();
}
if (g_options.dnssd_data->DNSSDClient) {
avahi_client_free(g_options.dnssd_data->DNSSDClient);
g_options.dnssd_data->DNSSDClient = NULL;
}
if (g_options.dnssd_data->DNSSDMaster) {
avahi_threaded_poll_free(g_options.dnssd_data->DNSSDMaster);
g_options.dnssd_data->DNSSDMaster = NULL;
}
free(g_options.dnssd_data);
NOTE("DNS-SD shut down.");
}
/* Unregister this server from DNS-SD/mDNS */
int dcc_zeroconf_unregister(void *u) {
struct context *ctx = u;
if (ctx->threaded_poll)
avahi_threaded_poll_stop(ctx->threaded_poll);
if (ctx->client)
avahi_client_free(ctx->client);
if (ctx->threaded_poll)
avahi_threaded_poll_free(ctx->threaded_poll);
if (ctx->name)
avahi_free(ctx->name);
if (ctx->service_type)
free(ctx->service_type);
free(ctx);
return 0;
}
void
cupsdStartBrowsing(void)
{
if (!Browsing || !BrowseLocalProtocols)
return;
#if defined(HAVE_DNSSD) || defined(HAVE_AVAHI)
if (BrowseLocalProtocols & BROWSE_DNSSD)
{
# ifdef HAVE_DNSSD
DNSServiceErrorType error; /* Error from service creation */
/*
* First create a "master" connection for all registrations...
*/
if ((error = DNSServiceCreateConnection(&DNSSDMaster))
!= kDNSServiceErr_NoError)
{
cupsdLogMessage(CUPSD_LOG_ERROR,
"Unable to create master DNS-SD reference: %d", error);
if (FatalErrors & CUPSD_FATAL_BROWSE)
cupsdEndProcess(getpid(), 0);
}
else
{
/*
* Add the master connection to the select list...
*/
int fd = DNSServiceRefSockFD(DNSSDMaster);
fcntl(fd, F_SETFD, fcntl(fd, F_GETFD) | FD_CLOEXEC);
cupsdAddSelect(fd, (cupsd_selfunc_t)dnssdUpdate, NULL, NULL);
}
/*
* Set the computer name and register the web interface...
*/
DNSSDPort = 0;
cupsdUpdateDNSSDName();
# else /* HAVE_AVAHI */
if ((DNSSDMaster = avahi_threaded_poll_new()) == NULL)
{
cupsdLogMessage(CUPSD_LOG_ERROR, "Unable to create DNS-SD thread.");
if (FatalErrors & CUPSD_FATAL_BROWSE)
cupsdEndProcess(getpid(), 0);
}
else
{
int error; /* Error code, if any */
DNSSDClient = avahi_client_new(avahi_threaded_poll_get(DNSSDMaster), AVAHI_CLIENT_NO_FAIL, dnssdClientCallback, NULL, &error);
if (DNSSDClient == NULL)
{
cupsdLogMessage(CUPSD_LOG_ERROR,
"Unable to communicate with avahi-daemon: %s",
dnssdErrorString(error));
if (FatalErrors & CUPSD_FATAL_BROWSE)
cupsdEndProcess(getpid(), 0);
avahi_threaded_poll_free(DNSSDMaster);
DNSSDMaster = NULL;
}
else
avahi_threaded_poll_start(DNSSDMaster);
}
# endif /* HAVE_DNSSD */
}
#endif /* HAVE_DNSSD || HAVE_AVAHI */
/*
* Enable LPD and SMB printer sharing as needed through external programs...
*/
if (BrowseLocalProtocols & BROWSE_LPD)
update_lpd(1);
if (BrowseLocalProtocols & BROWSE_SMB)
update_smb(1);
#if defined(HAVE_DNSSD) || defined(HAVE_AVAHI)
/*
* Register the individual printers
*/
dnssdRegisterAllPrinters(0);
#endif /* HAVE_DNSSD || HAVE_AVAHI */
}
wxAvahiThreadPool::~wxAvahiThreadPool(){
if(m_pool!=NULL)
avahi_threaded_poll_free(m_pool);
}
void stopAvahiClient(AvahiThreadedPoll *threaded_poll, AvahiClient *client) {
avahi_threaded_poll_stop(threaded_poll);
avahi_client_free(client);
avahi_threaded_poll_free(threaded_poll);
}
int avahi_dacp_monitor(rtsp_conn_info *conn) {
dacp_browser_struct *dbs = (dacp_browser_struct *)malloc(sizeof(dacp_browser_struct));
if (dbs == NULL)
die("can not allocate a dacp_browser_struct.");
conn->mdns_private_pointer = (void *)dbs;
// create the threaded poll code
int err;
if (!(dbs->service_poll = avahi_threaded_poll_new())) {
warn("couldn't create avahi threaded service_poll!");
if (dbs) {
free((char *)dbs);
}
conn->mdns_private_pointer = NULL;
return -1;
}
// create the service client
if (!(dbs->service_client =
avahi_client_new(avahi_threaded_poll_get(dbs->service_poll), AVAHI_CLIENT_NO_FAIL,
service_client_callback, (void *)conn, &err))) {
warn("couldn't create avahi service client: %s!", avahi_strerror(err));
if (dbs) { // should free the threaded poll code
avahi_threaded_poll_free(dbs->service_poll);
free((char *)dbs);
}
conn->mdns_private_pointer = NULL;
return -1;
}
/* Create the service browser */
if (!(dbs->service_browser =
avahi_service_browser_new(dbs->service_client, AVAHI_IF_UNSPEC, AVAHI_PROTO_UNSPEC,
"_dacp._tcp", NULL, 0, browse_callback, (void *)conn))) {
warn("Failed to create service browser: %s\n",
avahi_strerror(avahi_client_errno(dbs->service_client)));
if (dbs) { // should free the threaded poll code and the service client
avahi_client_free(dbs->service_client);
avahi_threaded_poll_free(dbs->service_poll);
free((char *)dbs);
}
conn->mdns_private_pointer = NULL;
return -1;
}
// start the polling thread
if (avahi_threaded_poll_start(dbs->service_poll) < 0) {
warn("couldn't start avahi service_poll thread");
if (dbs) { // should free the threaded poll code and the service client and the service browser
avahi_service_browser_free(dbs->service_browser);
avahi_client_free(dbs->service_client);
avahi_threaded_poll_free(dbs->service_poll);
free((char *)dbs);
}
conn->mdns_private_pointer = NULL;
return -1;
}
return 0;
}
int main( AVAHI_GCC_UNUSED int argc, char *argv[] )
{
AvahiClient *client = NULL;
AvahiServiceBrowser *serviceBrowser = NULL;
char *myName;
int error;
int result = 1;
TiVoUnit *tivo;
myName = strrchr(argv[0], '/') + 1;
if (myName == (NULL+1))
myName = argv[0];
openlog( myName, LOG_PID, LOG_DAEMON );
loginfo("started");
/* must be done before any threads start */
curl_global_init( CURL_GLOBAL_ALL );
/* Allocate main loop object */
bonjourThread = avahi_threaded_poll_new();
if ( !bonjourThread )
{
logerror( "Failed to create threaded poll object." );
}
else
{
/* Allocate a new client */
client = avahi_client_new( avahi_threaded_poll_get( bonjourThread ), 0, client_callback, NULL, &error );
/* Check wether creating the client object succeeded */
if ( !client )
{
logerror( "Unable to create client: %s", avahi_strerror( error ) );
}
else
{
/* Create the service browser */
serviceBrowser = avahi_service_browser_new( client,
AVAHI_IF_UNSPEC,
AVAHI_PROTO_UNSPEC,
"_tivo-device._tcp",
NULL, 0,
browseCallback, client );
if ( !serviceBrowser )
{
logerror( "Unable to create service browser: %s", avahi_strerror( avahi_client_errno( client ) ) );
}
else
{
/* start the background network scan for TiVos */
avahi_threaded_poll_start( bonjourThread );
/* hack: wait for some results to arrive */
sleep(5);
/* what did we find? */
result = dumpTiVos();
avahi_threaded_poll_stop( bonjourThread );
avahi_service_browser_free( serviceBrowser );
}
avahi_client_free( client );
}
avahi_threaded_poll_free( bonjourThread );
}
/* docs say no other threads may be running */
curl_global_cleanup();
loginfo( "stopped" );
closelog();
return result;
}
