static int32_t
rtp_sinker_set_config(network_sinker *sinker, void *in, void *data)
{
rtp_sinker *rs = (rtp_sinker*)sinker;
int32_t stm_i = *((int32_t*)in);
rtp_port_conf *rpc = (rtp_port_conf*)data;
proto_watch *pw;
if (!VALID_STM_TYPE(stm_i) || sinker->stms[stm_i].stm_type == ST_NONE)
return -EINVAL;
if (!rpc->rtsp_client)
return -EINVAL;
rs->trans_mode = rpc->trans;
pw = sinker->stms[stm_i].stm_watch;
if (!pw)
{
if (rpc->trans != RTP_OVER_RTSP)
return -EINVAL;
if (!rs->interleaved)
{
rs->interleaved = (rtsp_client*)client_ref((client*)rpc->rtsp_client);
}
return 0;
}
if (!proto_watch_attach(pw, ((client*)rpc->rtsp_client)->sched))
return proto_watch_set_dst(pw, rpc->host, rpc->ports.min_port);
return -EINVAL;
}
int client_auth_begin(struct client *client, const char *mech_name,
const char *init_resp)
{
if (!client->secured && strcmp(client->ssl_set->ssl, "required") == 0) {
if (client->set->auth_verbose) {
client_log(client, "Login failed: "
"SSL required for authentication");
}
client->auth_attempts++;
client_auth_result(client, CLIENT_AUTH_RESULT_SSL_REQUIRED, NULL,
"Authentication not allowed until SSL/TLS is enabled.");
return 1;
}
client_ref(client);
client->auth_initializing = TRUE;
sasl_server_auth_begin(client, login_binary->protocol, mech_name,
init_resp, sasl_callback);
client->auth_initializing = FALSE;
if (!client->authenticating)
return 1;
/* don't handle input until we get the initial auth reply */
if (client->io != NULL)
io_remove(&client->io);
client_set_auth_waiting(client);
return 0;
}
static void
has_connection (Client *client)
{
/* listen for disconnection */
client->disconnected_signal_handler_id = g_signal_connect (client->connection,
"closed",
G_CALLBACK (on_connection_disconnected),
client);
/* attempt to acquire the name */
g_dbus_connection_call (client->connection,
"org.freedesktop.DBus", /* bus name */
"/org/freedesktop/DBus", /* object path */
"org.freedesktop.DBus", /* interface name */
"RequestName", /* method name */
g_variant_new ("(su)",
client->name,
client->flags),
G_VARIANT_TYPE ("(u)"),
G_DBUS_CALL_FLAGS_NONE,
-1,
NULL,
(GAsyncReadyCallback) request_name_cb,
client_ref (client));
}
static void client_start_tls(struct client *client)
{
int fd_ssl;
client_ref(client);
if (!client_unref(&client) || client->destroyed)
return;
fd_ssl = ssl_proxy_alloc(client->fd, &client->ip, client->pool,
client->set, client->ssl_set,
&client->ssl_proxy);
if (fd_ssl == -1) {
client_notify_disconnect(client,
CLIENT_DISCONNECT_INTERNAL_ERROR,
"TLS initialization failed.");
client_destroy(client,
"Disconnected: TLS initialization failed.");
return;
}
ssl_proxy_set_client(client->ssl_proxy, client);
ssl_proxy_start(client->ssl_proxy);
client->starttls = TRUE;
client->tls = TRUE;
client->secured = TRUE;
login_refresh_proctitle();
client->fd = fd_ssl;
client->io = io_add(client->fd, IO_READ, client_input, client);
i_stream_unref(&client->input);
o_stream_unref(&client->output);
client_open_streams(client);
client->v.starttls(client);
}
static void
break_callback (struct ropa_cb *cb, struct ropa_client *caller, Bool break_own)
{
struct ropa_ccpair *cc;
struct ropa_ccpair *own_cc = NULL;
assert (cb);
assert (cb->ccpairs);
mlog_log (MDEBROPA, "break_callback: breaking callback %x.%x.%x (%d)",
cb->fid.Volume, cb->fid.Vnode, cb->fid.Unique, break_own);
callback_ref (cb);
if (caller)
client_ref (caller);
while ((cc = listdelhead (cb->ccpairs)) != 0) {
assert (cc->cb == cb);
cc->cb_li = NULL;
if (break_own)
break_ccpair (cc, cc->client != caller);
else
if (cc->client == caller)
own_cc = cc;
else
break_ccpair (cc, TRUE);
}
if (own_cc)
own_cc->cb_li = listaddhead (cb->ccpairs, own_cc);
callback_deref (cb);
if (caller)
client_deref (caller);
}
static int32_t
rtp_sinker_consumable(network_sinker *ns, proto_watch *pw,
int32_t stm_i, uint32_t size)
{
int32_t err = -EINVAL;
media_sinker *sinker = (media_sinker*)ns;
rtp_sinker *rs = (rtp_sinker*)ns;
network_client *nc = (network_client*)rs->interleaved;
if (rs->trans_mode == RTP_OVER_RTSP && nc)
{ //@{Interleaved rtp mode}
client_ref((client*)nc);
RELEASE_LOCK(sinker->lock);
err = network_client_consumable(nc, size);
client_unref((client*)nc);
AQUIRE_LOCK(sinker->lock);
return err;
}
if (pw)
{
return proto_watch_writeable(pw, size);
}
return err;
}
static void
break_client (struct ropa_client *c, Bool notify_clientp)
{
assert (c);
client_ref (c);
break_ccpairs (c, notify_clientp);
client_deref (c);
}
int login_proxy_new(struct client *client,
const struct login_proxy_settings *set,
proxy_callback_t *callback)
{
struct login_proxy *proxy;
i_assert(client->login_proxy == NULL);
if (set->host == NULL || *set->host == '\0') {
i_error("proxy(%s): host not given", client->virtual_user);
return -1;
}
if (client->proxy_ttl <= 1) {
i_error("proxy(%s): TTL reached zero - "
"proxies appear to be looping?", client->virtual_user);
return -1;
}
proxy = i_new(struct login_proxy, 1);
proxy->client = client;
proxy->client_fd = -1;
proxy->server_fd = -1;
proxy->created = ioloop_timeval;
proxy->ip = set->ip;
proxy->source_ip = set->source_ip;
proxy->host = i_strdup(set->host);
proxy->port = set->port;
proxy->connect_timeout_msecs = set->connect_timeout_msecs;
proxy->notify_refresh_secs = set->notify_refresh_secs;
proxy->ssl_flags = set->ssl_flags;
proxy->state_rec = login_proxy_state_get(proxy_state, &proxy->ip,
proxy->port);
client_ref(client);
if (set->ip.family == 0 &&
net_addr2ip(set->host, &proxy->ip) < 0) {
i_error("proxy(%s): BUG: host %s is not an IP "
"(auth should have changed it)",
client->virtual_user, set->host);
} else {
if (login_proxy_connect(proxy) < 0)
return -1;
}
DLLIST_PREPEND(&login_proxies_pending, proxy);
proxy->callback = callback;
client->login_proxy = proxy;
return 0;
}
int32_t client_set_add(client_set *cs, client *c)
{
int32_t err;
AQUIRE_LOCK(cs->lock);
err = __client_set_add(cs, c);
if (!err)
{
client_ref(c);
}
RELEASE_LOCK(cs->lock);
return err;
}
static struct ropa_ccpair *
add_client (struct ropa_cb *cb, struct ropa_client *c)
{
struct timeval tv;
struct ropa_ccpair cckey, *cc;
assert (cb && c);
cckey.client = c;
cckey.cb = cb;
cc = hashtabsearch (ht_ccpairs, &cckey);
if (cc) {
listdel (lru_ccpair, cc->li);
cc->li = listaddhead (lru_ccpair, cc);
return cc;
}
/* The reverse of these are in break_ccpair */
callback_ref (cb);
client_ref (c);
cc = listdeltail (lru_ccpair);
DIAGNOSTIC_CHECK_CCPAIR(cc);
cc->li = NULL;
if (ccpairs_inuse_p (cc))
break_ccpair (cc, TRUE);
/* XXX do it for real */
gettimeofday(&tv, NULL);
cc->expire = tv.tv_sec + 3600;
heap_insert (heap_ccpairs, cc, &cc->heap);
LWP_NoYieldSignal (heap_ccpairs);
cc->cb_li = listaddtail (cb->ccpairs, cc);
cc->client = c;
cc->cb = cb;
cc->li = listaddhead (lru_ccpair, cc);
hashtabadd (ht_ccpairs, cc);
mlog_log (MDEBROPA, "add_client: added %x to callback %x.%x.%x",
c->addr[0].addr_in, cb->fid.Volume, cb->fid.Vnode, cb->fid.Unique);
return cc;
}
int login_proxy_new(struct client *client,
const struct login_proxy_settings *set,
proxy_callback_t *callback)
{
struct login_proxy *proxy;
i_assert(client->login_proxy == NULL);
if (set->host == NULL || *set->host == '\0') {
client_log_err(client, t_strdup_printf(
"proxy(%s): host not given", client->virtual_user));
return -1;
}
if (client->proxy_ttl <= 1) {
client_log_err(client, t_strdup_printf(
"proxy(%s): TTL reached zero - "
"proxies appear to be looping?", client->virtual_user));
return -1;
}
proxy = i_new(struct login_proxy, 1);
proxy->client = client;
proxy->client_fd = -1;
proxy->server_fd = -1;
proxy->created = ioloop_timeval;
proxy->ip = set->ip;
proxy->source_ip = set->source_ip;
proxy->host = i_strdup(set->host);
proxy->port = set->port;
proxy->connect_timeout_msecs = set->connect_timeout_msecs;
proxy->notify_refresh_secs = set->notify_refresh_secs;
proxy->ssl_flags = set->ssl_flags;
proxy->state_rec = login_proxy_state_get(proxy_state, &proxy->ip,
proxy->port);
client_ref(client);
if (login_proxy_connect(proxy) < 0) {
login_proxy_free(&proxy);
return -1;
}
DLLIST_PREPEND(&login_proxies_pending, proxy);
proxy->callback = callback;
client->login_proxy = proxy;
return 0;
}
static void
invoke_get_name_owner (Client *client)
{
g_dbus_connection_call (client->connection,
"org.freedesktop.DBus", /* bus name */
"/org/freedesktop/DBus", /* object path */
"org.freedesktop.DBus", /* interface name */
"GetNameOwner", /* method name */
g_variant_new ("(s)", client->name),
G_VARIANT_TYPE ("(s)"),
G_DBUS_CALL_FLAGS_NONE,
-1,
NULL,
(GAsyncReadyCallback) get_name_owner_cb,
client_ref (client));
}
/**
* g_bus_own_name:
* @bus_type: The type of bus to own a name on.
* @name: The well-known name to own.
* @flags: A set of flags from the #GBusNameOwnerFlags enumeration.
* @bus_acquired_handler: Handler to invoke when connected to the bus of type @bus_type or %NULL.
* @name_acquired_handler: Handler to invoke when @name is acquired or %NULL.
* @name_lost_handler: Handler to invoke when @name is lost or %NULL.
* @user_data: User data to pass to handlers.
* @user_data_free_func: Function for freeing @user_data or %NULL.
*
* Starts acquiring @name on the bus specified by @bus_type and calls
* @name_acquired_handler and @name_lost_handler when the name is
* acquired respectively lost. Callbacks will be invoked in the <link
* linkend="g-main-context-push-thread-default">thread-default main
* loop</link> of the thread you are calling this function from.
*
* You are guaranteed that one of the @name_acquired_handler and @name_lost_handler
* callbacks will be invoked after calling this function - there are three
* possible cases:
* <itemizedlist>
* <listitem><para>
* @name_lost_handler with a %NULL connection (if a connection to the bus can't be made).
* </para></listitem>
* <listitem><para>
* @bus_acquired_handler then @name_lost_handler (if the name can't be obtained)
* </para></listitem>
* <listitem><para>
* @bus_acquired_handler then @name_acquired_handler (if the name was obtained).
* </para></listitem>
* </itemizedlist>
* When you are done owning the name, just call g_bus_unown_name()
* with the owner id this function returns.
*
* If the name is acquired or lost (for example another application
* could acquire the name if you allow replacement or the application
* currently owning the name exits), the handlers are also invoked. If the
* #GDBusConnection that is used for attempting to own the name
* closes, then @name_lost_handler is invoked since it is no
* longer possible for other processes to access the process.
*
* You cannot use g_bus_own_name() several times for the same name (unless
* interleaved with calls to g_bus_unown_name()) - only the first call
* will work.
*
* Another guarantee is that invocations of @name_acquired_handler
* and @name_lost_handler are guaranteed to alternate; that
* is, if @name_acquired_handler is invoked then you are
* guaranteed that the next time one of the handlers is invoked, it
* will be @name_lost_handler. The reverse is also true.
*
* If you plan on exporting objects (using e.g.
* g_dbus_connection_register_object()), note that it is generally too late
* to export the objects in @name_acquired_handler. Instead, you can do this
* in @bus_acquired_handler since you are guaranteed that this will run
* before @name is requested from the bus.
*
* This behavior makes it very simple to write applications that wants
* to own names and export objects, see <xref linkend="gdbus-owning-names"/>.
* Simply register objects to be exported in @bus_acquired_handler and
* unregister the objects (if any) in @name_lost_handler.
*
* Returns: An identifier (never 0) that an be used with
* g_bus_unown_name() to stop owning the name.
*
* Since: 2.26
*/
guint
g_bus_own_name (GBusType bus_type,
const gchar *name,
GBusNameOwnerFlags flags,
GBusAcquiredCallback bus_acquired_handler,
GBusNameAcquiredCallback name_acquired_handler,
GBusNameLostCallback name_lost_handler,
gpointer user_data,
GDestroyNotify user_data_free_func)
{
Client *client;
g_return_val_if_fail (g_dbus_is_name (name) && !g_dbus_is_unique_name (name), 0);
G_LOCK (lock);
client = g_new0 (Client, 1);
client->ref_count = 1;
client->id = next_global_id++; /* TODO: uh oh, handle overflow */
client->name = g_strdup (name);
client->flags = flags;
client->bus_acquired_handler = bus_acquired_handler;
client->name_acquired_handler = name_acquired_handler;
client->name_lost_handler = name_lost_handler;
client->user_data = user_data;
client->user_data_free_func = user_data_free_func;
client->main_context = g_main_context_get_thread_default ();
if (client->main_context != NULL)
g_main_context_ref (client->main_context);
if (map_id_to_client == NULL)
{
map_id_to_client = g_hash_table_new (g_direct_hash, g_direct_equal);
}
g_hash_table_insert (map_id_to_client,
GUINT_TO_POINTER (client->id),
client);
g_bus_get (bus_type,
NULL,
connection_get_cb,
client_ref (client));
G_UNLOCK (lock);
return client->id;
}
/* Return a reference to the #Client for @watcher_id, or %NULL if it’s been
* unwatched. This is safe to call from any thread. */
static Client *
dup_client (guint watcher_id)
{
Client *client;
G_LOCK (lock);
g_assert (watcher_id != 0);
g_assert (map_id_to_client != NULL);
client = g_hash_table_lookup (map_id_to_client, GUINT_TO_POINTER (watcher_id));
if (client != NULL)
client_ref (client);
G_UNLOCK (lock);
return client;
}
/**
* g_bus_watch_name:
* @bus_type: The type of bus to watch a name on.
* @name: The name (well-known or unique) to watch.
* @flags: Flags from the #GBusNameWatcherFlags enumeration.
* @name_appeared_handler: (nullable): Handler to invoke when @name is known to exist or %NULL.
* @name_vanished_handler: (nullable): Handler to invoke when @name is known to not exist or %NULL.
* @user_data: User data to pass to handlers.
* @user_data_free_func: (nullable): Function for freeing @user_data or %NULL.
*
* Starts watching @name on the bus specified by @bus_type and calls
* @name_appeared_handler and @name_vanished_handler when the name is
* known to have a owner respectively known to lose its
* owner. Callbacks will be invoked in the
* [thread-default main context][g-main-context-push-thread-default]
* of the thread you are calling this function from.
*
* You are guaranteed that one of the handlers will be invoked after
* calling this function. When you are done watching the name, just
* call g_bus_unwatch_name() with the watcher id this function
* returns.
*
* If the name vanishes or appears (for example the application owning
* the name could restart), the handlers are also invoked. If the
* #GDBusConnection that is used for watching the name disconnects, then
* @name_vanished_handler is invoked since it is no longer
* possible to access the name.
*
* Another guarantee is that invocations of @name_appeared_handler
* and @name_vanished_handler are guaranteed to alternate; that
* is, if @name_appeared_handler is invoked then you are
* guaranteed that the next time one of the handlers is invoked, it
* will be @name_vanished_handler. The reverse is also true.
*
* This behavior makes it very simple to write applications that want
* to take action when a certain [name exists][gdbus-watching-names].
* Basically, the application should create object proxies in
* @name_appeared_handler and destroy them again (if any) in
* @name_vanished_handler.
*
* Returns: An identifier (never 0) that an be used with
* g_bus_unwatch_name() to stop watching the name.
*
* Since: 2.26
*/
guint
g_bus_watch_name (GBusType bus_type,
const gchar *name,
GBusNameWatcherFlags flags,
GBusNameAppearedCallback name_appeared_handler,
GBusNameVanishedCallback name_vanished_handler,
gpointer user_data,
GDestroyNotify user_data_free_func)
{
Client *client;
g_return_val_if_fail (g_dbus_is_name (name), 0);
G_LOCK (lock);
client = g_new0 (Client, 1);
client->ref_count = 1;
client->id = g_atomic_int_add (&next_global_id, 1); /* TODO: uh oh, handle overflow */
client->name = g_strdup (name);
client->flags = flags;
client->name_appeared_handler = name_appeared_handler;
client->name_vanished_handler = name_vanished_handler;
client->user_data = user_data;
client->user_data_free_func = user_data_free_func;
client->main_context = g_main_context_ref_thread_default ();
if (map_id_to_client == NULL)
{
map_id_to_client = g_hash_table_new (g_direct_hash, g_direct_equal);
}
g_hash_table_insert (map_id_to_client,
GUINT_TO_POINTER (client->id),
client);
g_bus_get (bus_type,
NULL,
connection_get_cb,
client_ref (client));
G_UNLOCK (lock);
return client->id;
}
static void
has_connection (Client *client)
{
/* listen for disconnection */
client->disconnected_signal_handler_id = g_signal_connect (client->connection,
"closed",
G_CALLBACK (on_connection_disconnected),
GUINT_TO_POINTER (client->id));
/* start listening to NameOwnerChanged messages immediately */
client->name_owner_changed_subscription_id = g_dbus_connection_signal_subscribe (client->connection,
"org.freedesktop.DBus", /* name */
"org.freedesktop.DBus", /* if */
"NameOwnerChanged", /* signal */
"/org/freedesktop/DBus", /* path */
client->name,
G_DBUS_SIGNAL_FLAGS_NONE,
on_name_owner_changed,
GUINT_TO_POINTER (client->id),
NULL);
if (client->flags & G_BUS_NAME_WATCHER_FLAGS_AUTO_START)
{
g_dbus_connection_call (client->connection,
"org.freedesktop.DBus", /* bus name */
"/org/freedesktop/DBus", /* object path */
"org.freedesktop.DBus", /* interface name */
"StartServiceByName", /* method name */
g_variant_new ("(su)", client->name, 0),
G_VARIANT_TYPE ("(u)"),
G_DBUS_CALL_FLAGS_NONE,
-1,
NULL,
(GAsyncReadyCallback) start_service_by_name_cb,
client_ref (client));
}
else
{
/* check owner */
invoke_get_name_owner (client);
}
}
static void
schedule_call_in_idle (Client *client, CallType call_type)
{
CallHandlerData *data;
GSource *idle_source;
data = g_new0 (CallHandlerData, 1);
data->client = client_ref (client);
data->connection = client->connection != NULL ? g_object_ref (client->connection) : NULL;
data->call_type = call_type;
idle_source = g_idle_source_new ();
g_source_set_priority (idle_source, G_PRIORITY_HIGH);
g_source_set_callback (idle_source,
call_in_idle_cb,
data,
(GDestroyNotify) call_handler_data_free);
g_source_attach (idle_source, client->main_context);
g_source_unref (idle_source);
}
network_client *
network_client_ref(network_client *nc)
{
return (network_client*)client_ref((client_t*)nc);
}
