KmsSCTPResult
kms_sctp_connection_bind (KmsSCTPConnection * conn, GCancellable * cancellable,
GError ** err)
{
gint bound_port;
g_return_val_if_fail (conn != NULL, KMS_SCTP_ERROR);
g_return_val_if_fail (conn->socket != NULL, KMS_SCTP_ERROR);
g_return_val_if_fail (conn->saddr != NULL, KMS_SCTP_ERROR);
/* bind it */
GST_DEBUG ("binding server socket");
if (!g_socket_bind (conn->socket, conn->saddr, TRUE, err))
return KMS_SCTP_ERROR;
g_socket_set_listen_backlog (conn->socket, SCTP_BACKLOG);
if (!g_socket_listen (conn->socket, err))
return KMS_SCTP_ERROR;
bound_port = kms_sctp_connection_get_bound_port (conn);
if (bound_port > 0) {
GST_DEBUG ("listening on port %d", bound_port);
}
return KMS_SCTP_OK;
}
/**
* g_socket_listener_add_address:
* @listener: a #GSocketListener
* @address: a #GSocketAddress
* @type: a #GSocketType
* @protocol: a #GSocketProtocol
* @source_object: (allow-none): Optional #GObject identifying this source
* @effective_address: (out) (allow-none): location to store the address that was bound to, or %NULL.
* @error: #GError for error reporting, or %NULL to ignore.
*
* Creates a socket of type @type and protocol @protocol, binds
* it to @address and adds it to the set of sockets we're accepting
* sockets from.
*
* Note that adding an IPv6 address, depending on the platform,
* may or may not result in a listener that also accepts IPv4
* connections. For more deterministic behavior, see
* g_socket_listener_add_inet_port().
*
* @source_object will be passed out in the various calls
* to accept to identify this particular source, which is
* useful if you're listening on multiple addresses and do
* different things depending on what address is connected to.
*
* If successful and @effective_address is non-%NULL then it will
* be set to the address that the binding actually occurred at. This
* is helpful for determining the port number that was used for when
* requesting a binding to port 0 (ie: "any port"). This address, if
* requested, belongs to the caller and must be freed.
*
* Returns: %TRUE on success, %FALSE on error.
*
* Since: 2.22
*/
gboolean
g_socket_listener_add_address (GSocketListener *listener,
GSocketAddress *address,
GSocketType type,
GSocketProtocol protocol,
GObject *source_object,
GSocketAddress **effective_address,
GError **error)
{
GSocketAddress *local_address;
GSocketFamily family;
GSocket *socket;
if (!check_listener (listener, error))
return FALSE;
family = g_socket_address_get_family (address);
socket = g_socket_new (family, type, protocol, error);
if (socket == NULL)
return FALSE;
g_socket_set_listen_backlog (socket, listener->priv->listen_backlog);
if (!g_socket_bind (socket, address, TRUE, error) ||
!g_socket_listen (socket, error))
{
g_object_unref (socket);
return FALSE;
}
local_address = NULL;
if (effective_address)
{
local_address = g_socket_get_local_address (socket, error);
if (local_address == NULL)
{
g_object_unref (socket);
return FALSE;
}
}
if (!g_socket_listener_add_socket (listener, socket,
source_object,
error))
{
if (local_address)
g_object_unref (local_address);
g_object_unref (socket);
return FALSE;
}
if (effective_address)
*effective_address = local_address;
g_object_unref (socket); /* add_socket refs this */
return TRUE;
}
GSocket *create_socket(void)
{
GSocket *sock;
GSocketAddress *addr;
sock = g_socket_new(
G_SOCKET_FAMILY_UNIX, G_SOCKET_TYPE_STREAM, 0, NULL);
addr = g_unix_socket_address_new(EMACS_FCITX_SOCKET);
unlink(EMACS_FCITX_SOCKET);
g_socket_bind(sock, addr, FALSE, NULL);
g_socket_listen(sock, NULL);
return sock;
}
int main(int argc, char *argv[])
{
GError *err = NULL;
GSocket *serv_gsock;
GSocketAddress *gaddr;
struct sockaddr_in addr;
/* Create socket */
serv_gsock = g_socket_new(G_SOCKET_FAMILY_IPV4,
G_SOCKET_TYPE_STREAM,
0,
&err);
if (!serv_gsock) {
printf("GSocket creation failure: %s\n", err->message);
g_clear_error(&err);
}
/* Bind to 127.0.0.1 */
bzero(&addr, sizeof(addr));
addr.sin_family = AF_INET;
addr.sin_port = htons(10086);
inet_pton(AF_INET, "127.0.0.1", &addr.sin_addr);
gaddr = g_socket_address_new_from_native(&addr, sizeof(addr));
if (!g_socket_bind(serv_gsock, gaddr, TRUE, &err)) {
printf("GSocket bind failure: %s\n", err->message);
g_clear_error(&err);
}
/* Listen */
if (!g_socket_listen(serv_gsock, &err)) {
printf("GSocket listen failure: %s\n", err->message);
g_clear_error(&err);
}
/* Accept */
gchar buffer[256];
gsize bytes_read;
GSocket *clnt_gsock;
clnt_gsock = g_socket_accept(serv_gsock, NULL, &err);
bytes_read = g_socket_receive(clnt_gsock, buffer, 256, NULL, &err);
printf("%u read: <%s>\n", (unsigned int)bytes_read, buffer);
return 0;
}
/**
* g_vfs_ftp_connection_listen_data_connection:
* @conn: a connection
* @error: %NULL or location to take potential errors
*
* Initiates a listening socket that the FTP server can connect to. To accept
* connections and initialize data transfers, use
* g_vfs_ftp_connection_accept_data_connection().
* This function supports what is known as "active FTP", while
* g_vfs_ftp_connection_open_data_connection() is to be used for "passive FTP".
*
* Returns: the actual address the socket is listening on or %NULL on error
**/
GSocketAddress *
g_vfs_ftp_connection_listen_data_connection (GVfsFtpConnection *conn,
GError ** error)
{
GSocketAddress *local, *addr;
g_return_val_if_fail (conn != NULL, NULL);
g_return_val_if_fail (conn->data == NULL, NULL);
g_vfs_ftp_connection_stop_listening (conn);
local = g_socket_connection_get_local_address (conn->connection, error);
if (local == NULL)
return NULL;
conn->listen_socket = g_socket_new (g_socket_address_get_family (local),
G_SOCKET_TYPE_STREAM,
G_SOCKET_PROTOCOL_TCP,
error);
if (conn->listen_socket == NULL)
return NULL;
g_assert (G_IS_INET_SOCKET_ADDRESS (local));
addr = g_inet_socket_address_new (g_inet_socket_address_get_address (G_INET_SOCKET_ADDRESS (local)), 0);
g_object_unref (local);
if (!g_socket_bind (conn->listen_socket, addr, TRUE, error) ||
!g_socket_listen (conn->listen_socket, error) ||
!(local = g_socket_get_local_address (conn->listen_socket, error)))
{
g_object_unref (addr);
g_vfs_ftp_connection_stop_listening (conn);
return NULL;
}
g_object_unref (addr);
return local;
}
int
main (int argc,
char *argv[])
{
GSocket *socket, *new_socket, *recv_socket;
GSocketAddress *src_address;
GSocketAddress *address;
GSocketType socket_type;
GSocketFamily socket_family;
GError *error = NULL;
GOptionContext *context;
GCancellable *cancellable;
char *display_addr;
GTlsCertificate *tlscert = NULL;
GIOStream *connection;
GInputStream *istream;
GOutputStream *ostream;
g_type_init ();
context = g_option_context_new (" - Test GSocket server stuff");
g_option_context_add_main_entries (context, cmd_entries, NULL);
if (!g_option_context_parse (context, &argc, &argv, &error))
{
g_printerr ("%s: %s\n", argv[0], error->message);
return 1;
}
if (unix_socket && argc != 2)
{
g_printerr ("%s: %s\n", argv[0], "Need to specify unix socket name");
return 1;
}
if (cancel_timeout)
{
GThread *thread;
cancellable = g_cancellable_new ();
thread = g_thread_new ("cancel", cancel_thread, cancellable);
g_thread_unref (thread);
}
else
{
cancellable = NULL;
}
if (tls_cert_file)
{
if (use_udp)
{
g_printerr ("DTLS (TLS over UDP) is not supported");
return 1;
}
tlscert = g_tls_certificate_new_from_file (tls_cert_file, &error);
if (!tlscert)
{
g_printerr ("Could not read server certificate '%s': %s\n",
tls_cert_file, error->message);
return 1;
}
}
loop = g_main_loop_new (NULL, FALSE);
if (use_udp)
socket_type = G_SOCKET_TYPE_DATAGRAM;
else
socket_type = G_SOCKET_TYPE_STREAM;
if (unix_socket)
socket_family = G_SOCKET_FAMILY_UNIX;
else
socket_family = G_SOCKET_FAMILY_IPV4;
socket = g_socket_new (socket_family, socket_type, 0, &error);
if (socket == NULL)
{
g_printerr ("%s: %s\n", argv[0], error->message);
return 1;
}
if (non_blocking)
g_socket_set_blocking (socket, FALSE);
if (unix_socket)
{
src_address = socket_address_from_string (argv[1]);
if (src_address == NULL)
{
g_printerr ("%s: Could not parse '%s' as unix socket name\n", argv[0], argv[1]);
return 1;
}
}
else
{
src_address = g_inet_socket_address_new (g_inet_address_new_any (G_SOCKET_FAMILY_IPV4), port);
}
if (!g_socket_bind (socket, src_address, !dont_reuse_address, &error))
{
g_printerr ("Can't bind socket: %s\n", error->message);
return 1;
}
g_object_unref (src_address);
if (!use_udp)
{
if (!g_socket_listen (socket, &error))
{
g_printerr ("Can't listen on socket: %s\n", error->message);
return 1;
}
address = g_socket_get_local_address (socket, &error);
if (!address)
{
g_printerr ("Error getting local address: %s\n",
error->message);
return 1;
}
display_addr = socket_address_to_string (address);
g_print ("listening on %s...\n", display_addr);
g_free (display_addr);
ensure_socket_condition (socket, G_IO_IN, cancellable);
new_socket = g_socket_accept (socket, cancellable, &error);
if (!new_socket)
{
g_printerr ("Error accepting socket: %s\n",
error->message);
return 1;
}
if (non_blocking)
g_socket_set_blocking (new_socket, FALSE);
if (read_timeout)
g_socket_set_timeout (new_socket, read_timeout);
address = g_socket_get_remote_address (new_socket, &error);
if (!address)
{
g_printerr ("Error getting remote address: %s\n",
error->message);
return 1;
}
display_addr = socket_address_to_string (address);
g_print ("got a new connection from %s\n", display_addr);
g_free(display_addr);
g_object_unref (address);
recv_socket = new_socket;
connection = G_IO_STREAM (g_socket_connection_factory_create_connection (recv_socket));
g_object_unref (new_socket);
}
else
{
recv_socket = socket;
connection = NULL;
}
if (tlscert)
{
GIOStream *tls_conn;
tls_conn = g_tls_server_connection_new (connection, tlscert, &error);
if (!tls_conn)
{
g_printerr ("Could not create TLS connection: %s\n",
error->message);
return 1;
}
if (!g_tls_connection_handshake (G_TLS_CONNECTION (tls_conn),
cancellable, &error))
{
g_printerr ("Error during TLS handshake: %s\n",
error->message);
return 1;
}
g_object_unref (connection);
connection = tls_conn;
}
if (connection)
{
istream = g_io_stream_get_input_stream (connection);
ostream = g_io_stream_get_output_stream (connection);
}
else
{
g_assert (use_udp);
istream = NULL;
ostream = NULL;
}
while (TRUE)
{
gchar buffer[4096];
gssize size;
gsize to_send;
if (use_udp)
{
ensure_socket_condition (recv_socket, G_IO_IN, cancellable);
size = g_socket_receive_from (recv_socket, &address,
buffer, sizeof buffer,
cancellable, &error);
}
else
{
ensure_connection_condition (connection, G_IO_IN, cancellable);
size = g_input_stream_read (istream,
buffer, sizeof buffer,
cancellable, &error);
}
if (size < 0)
{
g_printerr ("Error receiving from socket: %s\n",
error->message);
return 1;
}
if (size == 0)
break;
g_print ("received %" G_GSSIZE_FORMAT " bytes of data", size);
if (use_udp)
g_print (" from %s", socket_address_to_string (address));
g_print ("\n");
if (verbose)
g_print ("-------------------------\n"
"%.*s\n"
"-------------------------\n",
(int)size, buffer);
to_send = size;
#ifdef __QNXNTO__
if (delay_)
#else
if (delay)
#endif
{
#ifdef __QNXNTO__
if (verbose)
g_print ("delaying %d seconds before response\n", delay_);
g_usleep (1000 * 1000 * delay_);
#else
if (verbose)
g_print ("delaying %d seconds before response\n", delay);
g_usleep (1000 * 1000 * delay);
#endif
}
while (to_send > 0)
{
if (use_udp)
{
ensure_socket_condition (recv_socket, G_IO_OUT, cancellable);
size = g_socket_send_to (recv_socket, address,
buffer, to_send, cancellable, &error);
}
else
{
ensure_connection_condition (connection, G_IO_OUT, cancellable);
size = g_output_stream_write (ostream,
buffer, to_send,
cancellable, &error);
}
if (size < 0)
{
if (g_error_matches (error,
G_IO_ERROR,
G_IO_ERROR_WOULD_BLOCK))
{
g_print ("socket send would block, handling\n");
g_error_free (error);
error = NULL;
continue;
}
else
{
g_printerr ("Error sending to socket: %s\n",
error->message);
return 1;
}
}
g_print ("sent %" G_GSSIZE_FORMAT " bytes of data\n", size);
if (size == 0)
{
g_printerr ("Unexpected short write\n");
return 1;
}
to_send -= size;
}
}
g_print ("connection closed\n");
if (connection)
{
if (!g_io_stream_close (connection, NULL, &error))
{
g_printerr ("Error closing connection stream: %s\n",
error->message);
return 1;
}
g_object_unref (connection);
}
if (!g_socket_close (socket, &error))
{
g_printerr ("Error closing master socket: %s\n",
error->message);
return 1;
}
g_object_unref (socket);
return 0;
}
static GSocket *
gst_switch_server_listen (GstSwitchServer *srv, gint port,
gint *bound_port)
{
GError *err = NULL;
GInetAddress *addr;
GSocket *socket = NULL;
GSocketAddress *saddr;
GResolver *resolver;
gchar *ip;
*bound_port = 0;
/* look up name if we need to */
addr = g_inet_address_new_from_string (srv->host);
if (!addr) {
GList *results;
resolver = g_resolver_get_default ();
results = g_resolver_lookup_by_name (resolver, srv->host,
srv->cancellable, &err);
if (!results)
goto resolve_no_name;
addr = G_INET_ADDRESS (g_object_ref (results->data));
g_resolver_free_addresses (results);
g_object_unref (resolver);
}
ip = g_inet_address_to_string (addr);
saddr = g_inet_socket_address_new (addr, port);
g_object_unref (addr);
/* create the server listener socket */
socket = g_socket_new (g_socket_address_get_family (saddr),
G_SOCKET_TYPE_STREAM, G_SOCKET_PROTOCOL_TCP, &err);
if (!socket)
goto socket_new_failed;
/* bind it */
if (!g_socket_bind (socket, saddr, TRUE, &err))
goto socket_bind_failed;
g_object_unref (saddr);
/* listen on the socket */
g_socket_set_listen_backlog (socket, GST_SWITCH_SERVER_LISTEN_BACKLOG);
if (!g_socket_listen (socket, &err))
goto socket_listen_failed;
if (port == 0) {
saddr = g_socket_get_local_address (socket, NULL);
*bound_port = g_inet_socket_address_get_port ((GInetSocketAddress *) saddr);
g_object_unref (saddr);
} else {
*bound_port = port;
}
INFO ("Listening on %s (%s:%d)", srv->host, ip, *bound_port);
g_free (ip);
//g_atomic_int_set (&srv->bound_port, bound_port);
//g_object_notify (G_OBJECT (src), "bound-port");
return socket;
/* Errors Handling */
resolve_no_name:
{
ERROR ("resolve: %s", err->message);
g_object_unref (resolver);
g_object_unref (addr);
return NULL;
}
socket_new_failed:
{
ERROR ("new socket: %s", err->message);
g_clear_error (&err);
g_object_unref (saddr);
g_free (ip);
return NULL;
}
socket_bind_failed:
{
ERROR ("bind socket: %s", err->message);
g_clear_error (&err);
g_object_unref (saddr);
g_free (ip);
return NULL;
}
socket_listen_failed:
{
ERROR ("listen socket: %s", err->message);
g_clear_error (&err);
g_object_unref (saddr);
g_free (ip);
return NULL;
}
}
static gboolean
gst_tcp_mix_src_listen (GstTCPMixSrc * src, GstTCPMixSrcPad * pad)
{
GError *err = NULL;
GInetAddress *addr;
GSocketAddress *saddr;
GResolver *resolver;
gint bound_port = 0;
gchar *ip;
/* look up name if we need to */
addr = g_inet_address_new_from_string (src->host);
if (!addr) {
GList *results;
resolver = g_resolver_get_default ();
results = g_resolver_lookup_by_name (resolver, src->host,
src->cancellable, &err);
if (!results)
goto resolve_no_name;
addr = G_INET_ADDRESS (g_object_ref (results->data));
g_resolver_free_addresses (results);
g_object_unref (resolver);
}
/* get IP address */
ip = g_inet_address_to_string (addr);
saddr = g_inet_socket_address_new (addr, src->server_port);
g_object_unref (addr);
/* create the server listener socket */
src->server_socket = g_socket_new (g_socket_address_get_family (saddr),
G_SOCKET_TYPE_STREAM, G_SOCKET_PROTOCOL_TCP, &err);
if (!src->server_socket)
goto socket_new_failed;
/* bind it */
if (!g_socket_bind (src->server_socket, saddr, TRUE, &err))
goto socket_bind_failed;
g_object_unref (saddr);
g_socket_set_listen_backlog (src->server_socket, TCP_BACKLOG);
if (!g_socket_listen (src->server_socket, &err))
goto socket_listen_failed;
GST_OBJECT_FLAG_SET (src, GST_TCP_MIX_SRC_OPEN);
if (src->server_port == 0) {
saddr = g_socket_get_local_address (src->server_socket, NULL);
bound_port = g_inet_socket_address_get_port ((GInetSocketAddress *) saddr);
g_object_unref (saddr);
} else {
bound_port = src->server_port;
}
GST_DEBUG_OBJECT (src, "Listening on %s (%s:%d)", src->host, ip, bound_port);
g_free (ip);
g_atomic_int_set (&src->bound_port, bound_port);
g_object_notify (G_OBJECT (src), "bound-port");
return TRUE;
/* Handling Errors */
resolve_no_name:
{
if (g_error_matches (err, G_IO_ERROR, G_IO_ERROR_CANCELLED)) {
GST_DEBUG_OBJECT (src, "Cancelled name resolval");
} else {
GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ, (NULL),
("Failed to resolve host '%s': %s", src->host, err->message));
}
g_clear_error (&err);
g_object_unref (resolver);
return FALSE;
}
socket_new_failed:
{
GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ, (NULL),
("Failed to create socket: %s", err->message));
g_clear_error (&err);
g_object_unref (saddr);
return FALSE;
}
socket_bind_failed:
{
if (g_error_matches (err, G_IO_ERROR, G_IO_ERROR_CANCELLED)) {
GST_DEBUG_OBJECT (src, "Cancelled binding");
} else {
GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ, (NULL),
("Failed to bind on host '%s:%d': %s", src->host, src->server_port,
err->message));
}
g_clear_error (&err);
g_object_unref (saddr);
gst_tcp_mix_src_stop (src, pad);
return FALSE;
}
socket_listen_failed:
{
if (g_error_matches (err, G_IO_ERROR, G_IO_ERROR_CANCELLED)) {
GST_DEBUG_OBJECT (src, "Cancelled listening");
} else {
GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ, (NULL),
("Failed to listen on host '%s:%d': %s", src->host,
src->server_port, err->message));
}
g_clear_error (&err);
gst_tcp_mix_src_stop (src, pad);
return FALSE;
}
}
/**
* g_socket_listener_add_any_inet_port:
* @listener: a #GSocketListener
* @source_object: (allow-none): Optional #GObject identifying this source
* @error: a #GError location to store the error occurring, or %NULL to
* ignore.
*
* Listens for TCP connections on any available port number for both
* IPv6 and IPv4 (if each is available).
*
* This is useful if you need to have a socket for incoming connections
* but don't care about the specific port number.
*
* @source_object will be passed out in the various calls
* to accept to identify this particular source, which is
* useful if you're listening on multiple addresses and do
* different things depending on what address is connected to.
*
* Returns: the port number, or 0 in case of failure.
*
* Since: 2.24
**/
guint16
g_socket_listener_add_any_inet_port (GSocketListener *listener,
GObject *source_object,
GError **error)
{
GSList *sockets_to_close = NULL;
guint16 candidate_port = 0;
GSocket *socket6 = NULL;
GSocket *socket4 = NULL;
gint attempts = 37;
/*
* multi-step process:
* - first, create an IPv6 socket.
* - if that fails, create an IPv4 socket and bind it to port 0 and
* that's it. no retries if that fails (why would it?).
* - if our IPv6 socket also speaks IPv4 then we are done.
* - if not, then we need to create a IPv4 socket with the same port
* number. this might fail, of course. so we try this a bunch of
* times -- leaving the old IPv6 sockets open so that we get a
* different port number to try each time.
* - if all that fails then just give up.
*/
while (attempts--)
{
GInetAddress *inet_address;
GSocketAddress *address;
gboolean result;
g_assert (socket6 == NULL);
socket6 = g_socket_new (G_SOCKET_FAMILY_IPV6,
G_SOCKET_TYPE_STREAM,
G_SOCKET_PROTOCOL_DEFAULT,
NULL);
if (socket6 != NULL)
{
inet_address = g_inet_address_new_any (G_SOCKET_FAMILY_IPV6);
address = g_inet_socket_address_new (inet_address, 0);
g_object_unref (inet_address);
result = g_socket_bind (socket6, address, TRUE, error);
g_object_unref (address);
if (!result ||
!(address = g_socket_get_local_address (socket6, error)))
{
g_object_unref (socket6);
socket6 = NULL;
break;
}
g_assert (G_IS_INET_SOCKET_ADDRESS (address));
candidate_port =
g_inet_socket_address_get_port (G_INET_SOCKET_ADDRESS (address));
g_assert (candidate_port != 0);
g_object_unref (address);
if (g_socket_speaks_ipv4 (socket6))
break;
}
g_assert (socket4 == NULL);
socket4 = g_socket_new (G_SOCKET_FAMILY_IPV4,
G_SOCKET_TYPE_STREAM,
G_SOCKET_PROTOCOL_DEFAULT,
socket6 ? NULL : error);
if (socket4 == NULL)
/* IPv4 not supported.
* if IPv6 is supported then candidate_port will be non-zero
* (and the error parameter above will have been NULL)
* if IPv6 is unsupported then candidate_port will be zero
* (and error will have been set by the above call)
*/
break;
inet_address = g_inet_address_new_any (G_SOCKET_FAMILY_IPV4);
address = g_inet_socket_address_new (inet_address, candidate_port);
g_object_unref (inet_address);
/* a note on the 'error' clause below:
*
* if candidate_port is 0 then we report the error right away
* since it is strange that this binding would fail at all.
* otherwise, we ignore the error message (ie: NULL).
*
* the exception to this rule is the last time through the loop
* (ie: attempts == 0) in which case we want to set the error
* because failure here means that the entire call will fail and
* we need something to show to the user.
*
* an english summary of the situation: "if we gave a candidate
* port number AND we have more attempts to try, then ignore the
* error for now".
*/
result = g_socket_bind (socket4, address, TRUE,
(candidate_port && attempts) ? NULL : error);
g_object_unref (address);
if (candidate_port)
{
g_assert (socket6 != NULL);
if (result)
/* got our candidate port successfully */
break;
else
/* we failed to bind to the specified port. try again. */
{
g_object_unref (socket4);
socket4 = NULL;
/* keep this open so we get a different port number */
sockets_to_close = g_slist_prepend (sockets_to_close,
socket6);
candidate_port = 0;
socket6 = NULL;
}
}
else
/* we didn't tell it a port. this means two things.
* - if we failed, then something really bad happened.
* - if we succeeded, then we need to find out the port number.
*/
{
g_assert (socket6 == NULL);
if (!result ||
!(address = g_socket_get_local_address (socket4, error)))
{
g_object_unref (socket4);
socket4 = NULL;
break;
}
g_assert (G_IS_INET_SOCKET_ADDRESS (address));
candidate_port =
g_inet_socket_address_get_port (G_INET_SOCKET_ADDRESS (address));
g_assert (candidate_port != 0);
g_object_unref (address);
break;
}
}
/* should only be non-zero if we have a socket */
g_assert ((candidate_port != 0) == (socket4 || socket6));
while (sockets_to_close)
{
g_object_unref (sockets_to_close->data);
sockets_to_close = g_slist_delete_link (sockets_to_close,
sockets_to_close);
}
/* now we actually listen() the sockets and add them to the listener */
if (socket6 != NULL)
{
g_socket_set_listen_backlog (socket6, listener->priv->listen_backlog);
if (!g_socket_listen (socket6, error))
{
g_object_unref (socket6);
if (socket4)
g_object_unref (socket4);
return 0;
}
if (source_object)
g_object_set_qdata_full (G_OBJECT (socket6), source_quark,
g_object_ref (source_object),
g_object_unref);
g_ptr_array_add (listener->priv->sockets, socket6);
}
if (socket4 != NULL)
{
g_socket_set_listen_backlog (socket4, listener->priv->listen_backlog);
if (!g_socket_listen (socket4, error))
{
g_object_unref (socket4);
if (socket6)
g_object_unref (socket6);
return 0;
}
if (source_object)
g_object_set_qdata_full (G_OBJECT (socket4), source_quark,
g_object_ref (source_object),
g_object_unref);
g_ptr_array_add (listener->priv->sockets, socket4);
}
if ((socket4 != NULL || socket6 != NULL) &&
G_SOCKET_LISTENER_GET_CLASS (listener)->changed)
G_SOCKET_LISTENER_GET_CLASS (listener)->changed (listener);
return candidate_port;
}
/**
* g_socket_listener_add_inet_port:
* @listener: a #GSocketListener
* @port: an IP port number (non-zero)
* @source_object: (allow-none): Optional #GObject identifying this source
* @error: #GError for error reporting, or %NULL to ignore.
*
* Helper function for g_socket_listener_add_address() that
* creates a TCP/IP socket listening on IPv4 and IPv6 (if
* supported) on the specified port on all interfaces.
*
* @source_object will be passed out in the various calls
* to accept to identify this particular source, which is
* useful if you're listening on multiple addresses and do
* different things depending on what address is connected to.
*
* Returns: %TRUE on success, %FALSE on error.
*
* Since: 2.22
*/
gboolean
g_socket_listener_add_inet_port (GSocketListener *listener,
guint16 port,
GObject *source_object,
GError **error)
{
gboolean need_ipv4_socket = TRUE;
GSocket *socket4 = NULL;
GSocket *socket6;
g_return_val_if_fail (listener != NULL, FALSE);
g_return_val_if_fail (port != 0, FALSE);
if (!check_listener (listener, error))
return FALSE;
/* first try to create an IPv6 socket */
socket6 = g_socket_new (G_SOCKET_FAMILY_IPV6,
G_SOCKET_TYPE_STREAM,
G_SOCKET_PROTOCOL_DEFAULT,
NULL);
if (socket6 != NULL)
/* IPv6 is supported on this platform, so if we fail now it is
* a result of being unable to bind to our port. Don't fail
* silently as a result of this!
*/
{
GInetAddress *inet_address;
GSocketAddress *address;
gboolean result;
inet_address = g_inet_address_new_any (G_SOCKET_FAMILY_IPV6);
address = g_inet_socket_address_new (inet_address, port);
g_object_unref (inet_address);
g_socket_set_listen_backlog (socket6, listener->priv->listen_backlog);
result = g_socket_bind (socket6, address, TRUE, error) &&
g_socket_listen (socket6, error);
g_object_unref (address);
if (!result)
{
g_object_unref (socket6);
return FALSE;
}
if (source_object)
g_object_set_qdata_full (G_OBJECT (socket6), source_quark,
g_object_ref (source_object),
g_object_unref);
/* If this socket already speaks IPv4 then we are done. */
if (g_socket_speaks_ipv4 (socket6))
need_ipv4_socket = FALSE;
}
if (need_ipv4_socket)
/* We are here for exactly one of the following reasons:
*
* - our platform doesn't support IPv6
* - we successfully created an IPv6 socket but it's V6ONLY
*
* In either case, we need to go ahead and create an IPv4 socket
* and fail the call if we can't bind to it.
*/
{
socket4 = g_socket_new (G_SOCKET_FAMILY_IPV4,
G_SOCKET_TYPE_STREAM,
G_SOCKET_PROTOCOL_DEFAULT,
error);
if (socket4 != NULL)
/* IPv4 is supported on this platform, so if we fail now it is
* a result of being unable to bind to our port. Don't fail
* silently as a result of this!
*/
{
GInetAddress *inet_address;
GSocketAddress *address;
gboolean result;
inet_address = g_inet_address_new_any (G_SOCKET_FAMILY_IPV4);
address = g_inet_socket_address_new (inet_address, port);
g_object_unref (inet_address);
g_socket_set_listen_backlog (socket4,
listener->priv->listen_backlog);
result = g_socket_bind (socket4, address, TRUE, error) &&
g_socket_listen (socket4, error);
g_object_unref (address);
if (!result)
{
g_object_unref (socket4);
if (socket6 != NULL)
g_object_unref (socket6);
return FALSE;
}
if (source_object)
g_object_set_qdata_full (G_OBJECT (socket4), source_quark,
g_object_ref (source_object),
g_object_unref);
}
else
/* Ok. So IPv4 is not supported on this platform. If we
* succeeded at creating an IPv6 socket then that's OK, but
* otherwise we need to tell the user we failed.
*/
{
if (socket6 != NULL)
g_clear_error (error);
else
return FALSE;
}
}
g_assert (socket6 != NULL || socket4 != NULL);
if (socket6 != NULL)
g_ptr_array_add (listener->priv->sockets, socket6);
if (socket4 != NULL)
g_ptr_array_add (listener->priv->sockets, socket4);
if (G_SOCKET_LISTENER_GET_CLASS (listener)->changed)
G_SOCKET_LISTENER_GET_CLASS (listener)->changed (listener);
return TRUE;
}
/* set up server */
static gboolean
gst_tcp_server_src_start (GstBaseSrc * bsrc)
{
GstTCPServerSrc *src = GST_TCP_SERVER_SRC (bsrc);
GError *err = NULL;
GInetAddress *addr;
GSocketAddress *saddr;
GResolver *resolver;
/* look up name if we need to */
addr = g_inet_address_new_from_string (src->host);
if (!addr) {
GList *results;
resolver = g_resolver_get_default ();
results =
g_resolver_lookup_by_name (resolver, src->host, src->cancellable, &err);
if (!results)
goto name_resolve;
addr = G_INET_ADDRESS (g_object_ref (results->data));
g_resolver_free_addresses (results);
g_object_unref (resolver);
}
#ifndef GST_DISABLE_GST_DEBUG
{
gchar *ip = g_inet_address_to_string (addr);
GST_DEBUG_OBJECT (src, "IP address for host %s is %s", src->host, ip);
g_free (ip);
}
#endif
saddr = g_inet_socket_address_new (addr, src->server_port);
g_object_unref (addr);
/* create the server listener socket */
src->server_socket =
g_socket_new (g_socket_address_get_family (saddr), G_SOCKET_TYPE_STREAM,
G_SOCKET_PROTOCOL_TCP, &err);
if (!src->server_socket)
goto no_socket;
GST_DEBUG_OBJECT (src, "opened receiving server socket");
/* bind it */
GST_DEBUG_OBJECT (src, "binding server socket to address");
if (!g_socket_bind (src->server_socket, saddr, TRUE, &err))
goto bind_failed;
g_object_unref (saddr);
GST_DEBUG_OBJECT (src, "listening on server socket");
g_socket_set_listen_backlog (src->server_socket, TCP_BACKLOG);
if (!g_socket_listen (src->server_socket, &err))
goto listen_failed;
GST_OBJECT_FLAG_SET (src, GST_TCP_SERVER_SRC_OPEN);
return TRUE;
/* ERRORS */
no_socket:
{
GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ, (NULL),
("Failed to create socket: %s", err->message));
g_clear_error (&err);
g_object_unref (saddr);
return FALSE;
}
name_resolve:
{
if (g_error_matches (err, G_IO_ERROR, G_IO_ERROR_CANCELLED)) {
GST_DEBUG_OBJECT (src, "Cancelled name resolval");
} else {
GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ, (NULL),
("Failed to resolve host '%s': %s", src->host, err->message));
}
g_clear_error (&err);
g_object_unref (resolver);
return FALSE;
}
bind_failed:
{
if (g_error_matches (err, G_IO_ERROR, G_IO_ERROR_CANCELLED)) {
GST_DEBUG_OBJECT (src, "Cancelled binding");
} else {
GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ, (NULL),
("Failed to bind on host '%s:%d': %s", src->host, src->server_port,
err->message));
}
g_clear_error (&err);
g_object_unref (saddr);
gst_tcp_server_src_stop (GST_BASE_SRC (src));
return FALSE;
}
listen_failed:
{
if (g_error_matches (err, G_IO_ERROR, G_IO_ERROR_CANCELLED)) {
GST_DEBUG_OBJECT (src, "Cancelled listening");
} else {
GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ, (NULL),
("Failed to listen on host '%s:%d': %s", src->host, src->server_port,
err->message));
}
g_clear_error (&err);
gst_tcp_server_src_stop (GST_BASE_SRC (src));
return FALSE;
}
}
NiceSocket *
nice_tcp_passive_socket_new (GMainContext *ctx, NiceAddress *addr)
{
union {
struct sockaddr_storage storage;
struct sockaddr addr;
} name;
NiceSocket *sock;
TcpPassivePriv *priv;
GSocket *gsock = NULL;
gboolean gret = FALSE;
GSocketAddress *gaddr;
if (addr != NULL) {
nice_address_copy_to_sockaddr(addr, &name.addr);
} else {
memset (&name, 0, sizeof (name));
name.storage.ss_family = AF_UNSPEC;
}
if (name.storage.ss_family == AF_UNSPEC || name.storage.ss_family == AF_INET) {
gsock = g_socket_new (G_SOCKET_FAMILY_IPV4, G_SOCKET_TYPE_STREAM,
G_SOCKET_PROTOCOL_TCP, NULL);
name.storage.ss_family = AF_INET;
#ifdef HAVE_SA_LEN
name.storage.ss_len = sizeof (struct sockaddr_in);
#endif
} else if (name.storage.ss_family == AF_INET6) {
gsock = g_socket_new (G_SOCKET_FAMILY_IPV6, G_SOCKET_TYPE_STREAM,
G_SOCKET_PROTOCOL_TCP, NULL);
name.storage.ss_family = AF_INET6;
#ifdef HAVE_SA_LEN
name.storage.ss_len = sizeof (struct sockaddr_in6);
#endif
}
if (gsock == NULL) {
return NULL;
}
gaddr = g_socket_address_new_from_native (&name.addr, sizeof (name));
if (gaddr == NULL) {
g_object_unref (gsock);
return NULL;
}
/* GSocket: All socket file descriptors are set to be close-on-exec. */
g_socket_set_blocking (gsock, false);
gret = g_socket_bind (gsock, gaddr, FALSE, NULL) &&
g_socket_listen (gsock, NULL);
g_object_unref (gaddr);
if (gret == FALSE) {
g_socket_close (gsock, NULL);
g_object_unref (gsock);
return NULL;
}
gaddr = g_socket_get_local_address (gsock, NULL);
if (gaddr == NULL ||
!g_socket_address_to_native (gaddr, &name.addr, sizeof (name), NULL)) {
g_socket_close (gsock, NULL);
g_object_unref (gsock);
return NULL;
}
g_object_unref (gaddr);
if (ctx == NULL) {
ctx = g_main_context_default ();
}
sock = g_slice_new0 (NiceSocket);
nice_address_set_from_sockaddr (&sock->addr, &name.addr);
sock->priv = priv = g_slice_new0 (TcpPassivePriv);
priv->context = g_main_context_ref (ctx);
priv->connections = g_hash_table_new_full ((GHashFunc) nice_address_hash,
(GEqualFunc) nice_address_equal, (
GDestroyNotify) nice_address_free, NULL);
priv->writable_cb = NULL;
priv->writable_data = NULL;
sock->type = NICE_SOCKET_TYPE_TCP_PASSIVE;
sock->fileno = gsock;
sock->send_messages = socket_send_messages;
sock->send_messages_reliable = socket_send_messages_reliable;
sock->recv_messages = socket_recv_messages;
sock->is_reliable = socket_is_reliable;
sock->can_send = socket_can_send;
sock->set_writable_callback = socket_set_writable_callback;
sock->close = socket_close;
return sock;
}
static void
create_channel_cb (GObject *acr,
GAsyncResult *res,
gpointer user_data)
{
GSimpleAsyncResult *simple = user_data;
CreateTubeData *data;
GSocketListener *listener = NULL;
gchar *dir;
GSocket *socket = NULL;
GSocketAddress *socket_address = NULL;
GValue *address;
GHashTable *parameters;
GError *error = NULL;
data = g_simple_async_result_get_op_res_gpointer (simple);
if (g_cancellable_is_cancelled (data->op_cancellable))
{
g_object_unref (simple);
return;
}
data->channel = tp_account_channel_request_create_and_handle_channel_finish (
TP_ACCOUNT_CHANNEL_REQUEST (acr), res, NULL, &error);
if (data->channel == NULL)
goto OUT;
data->invalidated_id = g_signal_connect (data->channel, "invalidated",
G_CALLBACK (create_tube_channel_invalidated_cb), simple);
/* We are client side, but we have to offer a socket... So we offer an unix
* socket on which the service side can connect. We also create an IPv4 socket
* on which the ssh client can connect. When both sockets are connected,
* we can forward all communications between them. */
listener = g_socket_listener_new ();
/* Create temporary file for our unix socket */
dir = g_build_filename (g_get_tmp_dir (), "telepathy-ssh-XXXXXX", NULL);
dir = mkdtemp (dir);
data->unix_path = g_build_filename (dir, "unix-socket", NULL);
g_free (dir);
/* Create the unix socket, and listen for connection on it */
socket = g_socket_new (G_SOCKET_FAMILY_UNIX, G_SOCKET_TYPE_STREAM,
G_SOCKET_PROTOCOL_DEFAULT, &error);
if (socket == NULL)
goto OUT;
socket_address = g_unix_socket_address_new (data->unix_path);
if (!g_socket_bind (socket, socket_address, FALSE, &error))
goto OUT;
if (!g_socket_listen (socket, &error))
goto OUT;
if (!g_socket_listener_add_socket (listener, socket, NULL, &error))
goto OUT;
g_socket_listener_accept_async (listener, data->op_cancellable,
create_tube_socket_connected_cb, g_object_ref (simple));
/* Offer the socket */
address = tp_address_variant_from_g_socket_address (socket_address,
TP_SOCKET_ADDRESS_TYPE_UNIX, &error);
if (address == NULL)
goto OUT;
parameters = g_hash_table_new (NULL, NULL);
data->offer_call = tp_cli_channel_type_stream_tube_call_offer (data->channel,
-1,
TP_SOCKET_ADDRESS_TYPE_UNIX, address,
TP_SOCKET_ACCESS_CONTROL_LOCALHOST, parameters,
create_tube_offer_cb, g_object_ref (simple), g_object_unref, NULL);
tp_g_value_slice_free (address);
g_hash_table_unref (parameters);
OUT:
if (error != NULL)
create_tube_complete (simple, error);
tp_clear_object (&listener);
tp_clear_object (&socket);
tp_clear_object (&socket_address);
g_clear_error (&error);
g_object_unref (simple);
}
int
main (int argc,
char *argv[])
{
GSocket *socket, *new_socket, *recv_socket;
GSocketAddress *src_address;
GSocketAddress *address;
GSocketType socket_type;
GError *error = NULL;
GOptionContext *context;
GCancellable *cancellable;
g_thread_init (NULL);
g_type_init ();
context = g_option_context_new (" - Test GSocket server stuff");
g_option_context_add_main_entries (context, cmd_entries, NULL);
if (!g_option_context_parse (context, &argc, &argv, &error))
{
g_printerr ("%s: %s\n", argv[0], error->message);
return 1;
}
if (cancel_timeout)
{
cancellable = g_cancellable_new ();
g_thread_create (cancel_thread, cancellable, FALSE, NULL);
}
else
{
cancellable = NULL;
}
loop = g_main_loop_new (NULL, FALSE);
if (use_udp)
socket_type = G_SOCKET_TYPE_DATAGRAM;
else
socket_type = G_SOCKET_TYPE_STREAM;
socket = g_socket_new (G_SOCKET_FAMILY_IPV4, socket_type, 0, &error);
if (socket == NULL)
{
g_printerr ("%s: %s\n", argv[0], error->message);
return 1;
}
if (non_blocking)
g_socket_set_blocking (socket, FALSE);
src_address = g_inet_socket_address_new (g_inet_address_new_any (G_SOCKET_FAMILY_IPV4), port);
if (!g_socket_bind (socket, src_address, !dont_reuse_address, &error))
{
g_printerr ("Can't bind socket: %s\n", error->message);
return 1;
}
if (!use_udp)
{
if (!g_socket_listen (socket, &error))
{
g_printerr ("Can't listen on socket: %s\n", error->message);
return 1;
}
g_print ("listening on port %d...\n", port);
ensure_condition (socket, "accept", cancellable, G_IO_IN);
new_socket = g_socket_accept (socket, &error);
if (!new_socket)
{
g_printerr ("Error accepting socket: %s\n",
error->message);
return 1;
}
if (non_blocking)
g_socket_set_blocking (new_socket, FALSE);
address = g_socket_get_remote_address (new_socket, &error);
if (!address)
{
g_printerr ("Error getting remote address: %s\n",
error->message);
return 1;
}
g_print ("got a new connection from %s (blocking: %d)\n",
socket_address_to_string (address),
g_socket_get_blocking (new_socket));
recv_socket = new_socket;
}
else
{
recv_socket = socket;
new_socket = NULL;
}
while (TRUE)
{
gchar buffer[4096] = { };
gssize size;
gsize to_send;
ensure_condition (recv_socket, "receive", cancellable, G_IO_IN);
if (use_udp)
size = g_socket_receive_from (recv_socket, &address,
buffer, sizeof buffer, &error);
else
size = g_socket_receive (recv_socket, buffer, sizeof buffer, &error);
if (size < 0)
{
g_printerr ("Error receiving from socket: %s\n",
error->message);
return 1;
}
if (size == 0)
break;
g_print ("received %" G_GSSIZE_FORMAT " bytes of data", size);
if (use_udp)
g_print (" from %s", socket_address_to_string (address));
g_print ("\n");
if (verbose)
g_print ("-------------------------\n"
"%.*s\n"
"-------------------------\n",
(int)size, buffer);
to_send = size;
while (to_send > 0)
{
ensure_condition (recv_socket, "send", cancellable, G_IO_OUT);
if (use_udp)
size = g_socket_send_to (recv_socket, address,
buffer, to_send, &error);
else
size = g_socket_send (recv_socket, buffer, to_send, &error);
if (size < 0)
{
if (g_error_matches (error,
G_IO_ERROR,
G_IO_ERROR_WOULD_BLOCK))
{
g_print ("socket send would block, handling\n");
g_error_free (error);
error = NULL;
continue;
}
else
{
g_printerr ("Error sending to socket: %s\n",
error->message);
return 1;
}
}
g_print ("sent %" G_GSSIZE_FORMAT " bytes of data\n", size);
if (size == 0)
{
g_printerr ("Unexpected short write\n");
return 1;
}
to_send -= size;
}
}
g_print ("connection closed\n");
if (new_socket)
{
if (!g_socket_close (new_socket, &error))
{
g_printerr ("Error closing connection socket: %s\n",
error->message);
return 1;
}
g_object_unref (G_OBJECT (new_socket));
}
if (!g_socket_close (socket, &error))
{
g_printerr ("Error closing master socket: %s\n",
error->message);
return 1;
}
g_object_unref (G_OBJECT (socket));
return 0;
}
