From: Andrei Emeltchenko <andrei.emeltchenko@xxxxxxxxx>
Move connection-related code from avdtp to a2dp. This shall help to use
same avdtp library in profiles/ and android/ code.
---
profiles/audio/a2dp.c | 162 +++++++++++++++++++++++++++++++++++++++++++++--
profiles/audio/avdtp.c | 168 ++++++++++++++-----------------------------------
profiles/audio/avdtp.h | 14 ++++-
3 files changed, 218 insertions(+), 126 deletions(-)
diff --git a/profiles/audio/a2dp.c b/profiles/audio/a2dp.c
index 75503f3..e89efe6 100644
--- a/profiles/audio/a2dp.c
+++ b/profiles/audio/a2dp.c
@@ -46,6 +46,8 @@
#include "src/log.h"
#include "src/sdpd.h"
+#include "btio/btio.h"
+
#include "avdtp.h"
#include "sink.h"
#include "source.h"
@@ -58,6 +60,8 @@
#define SUSPEND_TIMEOUT 5
#define RECONFIGURE_TIMEOUT 500
+#define AVDTP_PSM 25
+
struct a2dp_sep {
struct a2dp_server *server;
struct a2dp_endpoint *endpoint;
@@ -110,7 +114,15 @@ struct a2dp_server {
gboolean source_enabled;
};
+struct avdtp_server {
+ struct btd_adapter *adapter;
+ GIOChannel *io;
+ GSList *seps;
+ GSList *sessions;
+};
+
static GSList *servers = NULL;
+static GSList *avdtp_servers = NULL;
static GSList *setups = NULL;
static unsigned int cb_id = 0;
@@ -1186,6 +1198,19 @@ static struct a2dp_server *find_server(GSList *list, struct btd_adapter *a)
return NULL;
}
+static struct avdtp_server *find_avdtp_server(GSList *list,
+ struct btd_adapter *a)
+{
+ for (; list; list = list->next) {
+ struct avdtp_server *server = list->data;
+
+ if (server->adapter == a)
+ return server;
+ }
+
+ return NULL;
+}
+
static struct a2dp_server *a2dp_server_register(struct btd_adapter *adapter)
{
struct a2dp_server *server;
@@ -1197,6 +1222,29 @@ static struct a2dp_server *a2dp_server_register(struct btd_adapter *adapter)
return server;
}
+static void avdtp_server_destroy(struct avdtp_server *server)
+{
+ g_slist_free_full(server->sessions, avdtp_free);
+
+ servers = g_slist_remove(servers, server);
+
+ g_io_channel_shutdown(server->io, TRUE, NULL);
+ g_io_channel_unref(server->io);
+ btd_adapter_unref(server->adapter);
+ g_free(server);
+}
+
+static void a2dp_clean_lsep(struct avdtp_local_sep *lsep)
+{
+ struct avdtp_server *server = avdtp_get_server(lsep);
+
+ avdtp_unregister_sep(lsep);
+
+ server->seps = g_slist_remove(server->seps, lsep);
+ if (!server->seps)
+ avdtp_server_destroy(server);
+}
+
static void a2dp_unregister_sep(struct a2dp_sep *sep)
{
if (sep->destroy) {
@@ -1204,7 +1252,8 @@ static void a2dp_unregister_sep(struct a2dp_sep *sep)
sep->endpoint = NULL;
}
- avdtp_unregister_sep(sep->lsep);
+ a2dp_clean_lsep(sep->lsep);
+
g_free(sep);
}
@@ -1215,6 +1264,103 @@ static void a2dp_server_unregister(struct a2dp_server *server)
g_free(server);
}
+static void auth_cb(DBusError *derr, void *user_data)
+{
+ struct avdtp *session = user_data;
+
+ if (derr && dbus_error_is_set(derr)) {
+ error("Access denied: %s", derr->message);
+ connection_lost(session, EACCES);
+ return;
+ }
+
+ avdtp_accept(session);
+}
+
+static void avdtp_confirm_cb(GIOChannel *chan, gpointer data)
+{
+ struct avdtp *session;
+ char address[18];
+ bdaddr_t src, dst;
+ GError *err = NULL;
+ struct btd_device *device;
+ struct avdtp_server *avdtp_server;
+
+ bt_io_get(chan, &err,
+ BT_IO_OPT_SOURCE_BDADDR, &src,
+ BT_IO_OPT_DEST_BDADDR, &dst,
+ BT_IO_OPT_DEST, address,
+ BT_IO_OPT_INVALID);
+ if (err) {
+ error("%s", err->message);
+ g_error_free(err);
+ goto drop;
+ }
+
+ DBG("AVDTP: incoming connect from %s", address);
+
+ device = btd_adapter_find_device(adapter_find(&src), &dst,
+ BDADDR_BREDR);
+ if (!device)
+ goto drop;
+
+ avdtp_server = find_avdtp_server(avdtp_servers,
+ device_get_adapter(device));
+ if (!avdtp_server)
+ goto drop;
+
+ session = avdtp_new(avdtp_server, avdtp_server->sessions, chan, device);
+ if (!session)
+ goto drop;
+
+ avdtp_request_authorization(session, &src, &dst, auth_cb);
+
+ return;
+
+drop:
+ g_io_channel_shutdown(chan, TRUE, NULL);
+}
+
+static GIOChannel *avdtp_server_socket(const bdaddr_t *src, gboolean master)
+{
+ GError *err = NULL;
+ GIOChannel *io;
+
+ io = bt_io_listen(NULL, avdtp_confirm_cb,
+ NULL, NULL, &err,
+ BT_IO_OPT_SOURCE_BDADDR, src,
+ BT_IO_OPT_PSM, AVDTP_PSM,
+ BT_IO_OPT_SEC_LEVEL, BT_IO_SEC_MEDIUM,
+ BT_IO_OPT_MASTER, master,
+ BT_IO_OPT_INVALID);
+ if (!io) {
+ error("%s", err->message);
+ g_error_free(err);
+ }
+
+ return io;
+}
+
+static struct avdtp_server *avdtp_server_init(struct btd_adapter *adapter)
+{
+ struct avdtp_server *server;
+
+ server = g_new0(struct avdtp_server, 1);
+
+ server->io = avdtp_server_socket(btd_adapter_get_address(adapter),
+ TRUE);
+ if (!server->io) {
+ g_free(server);
+ return NULL;
+ }
+
+ server->adapter = btd_adapter_ref(adapter);
+
+ servers = g_slist_append(servers, server);
+
+ return server;
+}
+
struct a2dp_sep *a2dp_add_sep(struct btd_adapter *adapter, uint8_t type,
uint8_t codec, gboolean delay_reporting,
struct a2dp_endpoint *endpoint,
@@ -1222,6 +1368,7 @@ struct a2dp_sep *a2dp_add_sep(struct btd_adapter *adapter, uint8_t type,
int *err)
{
struct a2dp_server *server;
+ struct avdtp_server *avdtp_server;
struct a2dp_sep *sep;
GSList **l;
uint32_t *record_id;
@@ -1248,7 +1395,14 @@ struct a2dp_sep *a2dp_add_sep(struct btd_adapter *adapter, uint8_t type,
sep = g_new0(struct a2dp_sep, 1);
- sep->lsep = avdtp_register_sep(adapter, type,
+ avdtp_server = find_avdtp_server(servers, adapter);
+ if (!avdtp_server) {
+ avdtp_server = avdtp_server_init(adapter);
+ if (!server)
+ return NULL;
+ }
+
+ sep->lsep = avdtp_register_sep(avdtp_server, type,
AVDTP_MEDIA_TYPE_AUDIO, codec,
delay_reporting, &endpoint_ind,
&cfm, sep);
@@ -1282,7 +1436,7 @@ struct a2dp_sep *a2dp_add_sep(struct btd_adapter *adapter, uint8_t type,
record = a2dp_record(type);
if (!record) {
error("Unable to allocate new service record");
- avdtp_unregister_sep(sep->lsep);
+ a2dp_clean_lsep(sep->lsep);
g_free(sep);
if (err)
*err = -EINVAL;
@@ -1292,7 +1446,7 @@ struct a2dp_sep *a2dp_add_sep(struct btd_adapter *adapter, uint8_t type,
if (adapter_service_add(server->adapter, record) < 0) {
error("Unable to register A2DP service record");
sdp_record_free(record);
- avdtp_unregister_sep(sep->lsep);
+ a2dp_clean_lsep(sep->lsep);
g_free(sep);
if (err)
*err = -EINVAL;
diff --git a/profiles/audio/avdtp.c b/profiles/audio/avdtp.c
index 825fb79..1f996db 100644
--- a/profiles/audio/avdtp.c
+++ b/profiles/audio/avdtp.c
@@ -1107,7 +1107,7 @@ static void remove_disconnect_timer(struct avdtp *session)
session->stream_setup = FALSE;
}
-static void avdtp_free(void *data)
+void avdtp_free(void *data)
{
struct avdtp *session = data;
@@ -1141,7 +1141,7 @@ static void avdtp_free(void *data)
g_free(session);
}
-static void connection_lost(struct avdtp *session, int err)
+void connection_lost(struct avdtp *session, int err)
{
struct avdtp_server *server = session->server;
char address[18];
@@ -2424,59 +2424,27 @@ failed:
connection_lost(session, err_no);
}
-static void auth_cb(DBusError *derr, void *user_data)
-{
- struct avdtp *session = user_data;
- GError *err = NULL;
-
- if (derr && dbus_error_is_set(derr)) {
- error("Access denied: %s", derr->message);
- connection_lost(session, EACCES);
- return;
- }
-
- if (!bt_io_accept(session->io, avdtp_connect_cb, session, NULL,
- &err)) {
- error("bt_io_accept: %s", err->message);
- connection_lost(session, EACCES);
- g_error_free(err);
- return;
- }
-
- /* This is so that avdtp_connect_cb will know to do the right thing
- * with respect to the disconnect timer */
- session->stream_setup = TRUE;
-}
-
-static void avdtp_confirm_cb(GIOChannel *chan, gpointer data)
+struct avdtp *avdtp_new(struct avdtp_server *server, GSList *sessions,
+ GIOChannel *chan,
+ struct btd_device *device)
{
struct avdtp *session;
- char address[18];
- bdaddr_t src, dst;
- GError *err = NULL;
- struct btd_device *device;
- bt_io_get(chan, &err,
- BT_IO_OPT_SOURCE_BDADDR, &src,
- BT_IO_OPT_DEST_BDADDR, &dst,
- BT_IO_OPT_DEST, address,
- BT_IO_OPT_INVALID);
- if (err) {
- error("%s", err->message);
- g_error_free(err);
- goto drop;
- }
+ session = find_session(sessions, device);
+ if (session)
+ return session;
- DBG("AVDTP: incoming connect from %s", address);
+ session = g_new0(struct avdtp, 1);
- device = btd_adapter_find_device(adapter_find(&src), &dst,
- BDADDR_BREDR);
- if (!device)
- goto drop;
+ session->server = server;
+ session->device = btd_device_ref(device);
+ /* We don't use avdtp_set_state() here since this isn't a state change
+ * but just setting of the initial state */
+ session->state = AVDTP_SESSION_STATE_DISCONNECTED;
- session = avdtp_get_internal(device);
- if (!session)
- goto drop;
+ session->version = get_version(session);
+
+ sessions = g_slist_append(sessions, session);
/* This state (ie, session is already *connecting*) happens when the
* device initiates a connect (really a config'd L2CAP channel) even
@@ -2492,11 +2460,12 @@ static void avdtp_confirm_cb(GIOChannel *chan, gpointer data)
if (session->pending_open && session->pending_open->open_acp) {
if (!bt_io_accept(chan, avdtp_connect_cb, session, NULL, NULL))
goto drop;
- return;
+
+ return NULL;
}
if (session->io) {
- error("Refusing unexpected connect from %s", address);
+ error("Refusing unexpected connect");
goto drop;
}
@@ -2508,18 +2477,23 @@ static void avdtp_confirm_cb(GIOChannel *chan, gpointer data)
session->io_id = g_io_add_watch(chan, G_IO_ERR | G_IO_HUP | G_IO_NVAL,
(GIOFunc) session_cb, session);
- session->auth_id = btd_request_authorization(&src, &dst,
+ return session;
+drop:
+ return NULL;
+}
+
+bool avdtp_request_authorization(struct avdtp *session, const bdaddr_t *src,
+ const bdaddr_t *dst, service_auth_cb cb)
+{
+ session->auth_id = btd_request_authorization(src, dst,
ADVANCED_AUDIO_UUID,
- auth_cb, session);
+ cb, session);
if (session->auth_id == 0) {
avdtp_set_state(session, AVDTP_SESSION_STATE_DISCONNECTED);
- goto drop;
+ return false;
}
- return;
-
-drop:
- g_io_channel_shutdown(chan, TRUE, NULL);
+ return true;
}
static GIOChannel *l2cap_connect(struct avdtp *session)
@@ -3654,47 +3628,24 @@ int avdtp_delay_report(struct avdtp *session, struct avdtp_stream *stream,
&req, sizeof(req));
}
-static GIOChannel *avdtp_server_socket(const bdaddr_t *src, gboolean master)
+void avdtp_accept(struct avdtp *session)
{
GError *err = NULL;
- GIOChannel *io;
- io = bt_io_listen(NULL, avdtp_confirm_cb,
- NULL, NULL, &err,
- BT_IO_OPT_SOURCE_BDADDR, src,
- BT_IO_OPT_PSM, AVDTP_PSM,
- BT_IO_OPT_SEC_LEVEL, BT_IO_SEC_MEDIUM,
- BT_IO_OPT_MASTER, master,
- BT_IO_OPT_INVALID);
- if (!io) {
- error("%s", err->message);
+ if (!bt_io_accept(session->io, avdtp_connect_cb, session, NULL,
+ &err)) {
+ error("bt_io_accept: %s", err->message);
+ connection_lost(session, EACCES);
g_error_free(err);
+ return;
}
- return io;
-}
-
-static struct avdtp_server *avdtp_server_init(struct btd_adapter *adapter)
-{
- struct avdtp_server *server;
-
- server = g_new0(struct avdtp_server, 1);
-
- server->io = avdtp_server_socket(btd_adapter_get_address(adapter),
- TRUE);
- if (!server->io) {
- g_free(server);
- return NULL;
- }
-
- server->adapter = btd_adapter_ref(adapter);
-
- servers = g_slist_append(servers, server);
-
- return server;
+ /* This is so that avdtp_connect_cb will know to do the right thing
+ * with respect to the disconnect timer */
+ session->stream_setup = TRUE;
}
-struct avdtp_local_sep *avdtp_register_sep(struct btd_adapter *adapter,
+struct avdtp_local_sep *avdtp_register_sep(struct avdtp_server *server,
uint8_t type,
uint8_t media_type,
uint8_t codec_type,
@@ -3703,20 +3654,12 @@ struct avdtp_local_sep *avdtp_register_sep(struct btd_adapter *adapter,
struct avdtp_sep_cfm *cfm,
void *user_data)
{
- struct avdtp_server *server;
struct avdtp_local_sep *sep;
uint8_t seid = util_get_uid(&seids, MAX_SEID);
if (!seid)
return NULL;
- server = find_server(servers, adapter);
- if (!server) {
- server = avdtp_server_init(adapter);
- if (!server)
- return NULL;
- }
-
sep = g_new0(struct avdtp_local_sep, 1);
sep->state = AVDTP_STATE_IDLE;
@@ -3737,28 +3680,11 @@ struct avdtp_local_sep *avdtp_register_sep(struct btd_adapter *adapter,
return sep;
}
-static void avdtp_server_destroy(struct avdtp_server *server)
-{
- g_slist_free_full(server->sessions, avdtp_free);
-
- servers = g_slist_remove(servers, server);
-
- g_io_channel_shutdown(server->io, TRUE, NULL);
- g_io_channel_unref(server->io);
- btd_adapter_unref(server->adapter);
- g_free(server);
-}
-
int avdtp_unregister_sep(struct avdtp_local_sep *sep)
{
- struct avdtp_server *server;
-
if (!sep)
return -EINVAL;
- server = sep->server;
- server->seps = g_slist_remove(server->seps, sep);
-
if (sep->stream)
release_stream(sep->stream, sep->stream->session);
@@ -3768,11 +3694,6 @@ int avdtp_unregister_sep(struct avdtp_local_sep *sep)
util_clear_uid(&seids, sep->info.seid);
g_free(sep);
- if (server->seps)
- return 0;
-
- avdtp_server_destroy(server);
-
return 0;
}
@@ -3836,6 +3757,11 @@ struct btd_device *avdtp_get_device(struct avdtp *session)
return session->device;
}
+struct avdtp_server *avdtp_get_server(struct avdtp_local_sep *lsep)
+{
+ return lsep->server;
+}
+
gboolean avdtp_has_stream(struct avdtp *session, struct avdtp_stream *stream)
{
return g_slist_find(session->streams, stream) ? TRUE : FALSE;
diff --git a/profiles/audio/avdtp.h b/profiles/audio/avdtp.h
index 390c154..8bf6611 100644
--- a/profiles/audio/avdtp.h
+++ b/profiles/audio/avdtp.h
@@ -29,6 +29,7 @@ typedef enum {
} avdtp_session_state_t;
struct avdtp;
+struct avdtp_server;
struct avdtp_stream;
struct avdtp_local_sep;
struct avdtp_remote_sep;
@@ -268,7 +269,7 @@ int avdtp_abort(struct avdtp *session, struct avdtp_stream *stream);
int avdtp_delay_report(struct avdtp *session, struct avdtp_stream *stream,
uint16_t delay);
-struct avdtp_local_sep *avdtp_register_sep(struct btd_adapter *adapter,
+struct avdtp_local_sep *avdtp_register_sep(struct avdtp_server *server,
uint8_t type,
uint8_t media_type,
uint8_t codec_type,
@@ -293,3 +294,14 @@ int avdtp_error_posix_errno(struct avdtp_error *err);
struct btd_adapter *avdtp_get_adapter(struct avdtp *session);
struct btd_device *avdtp_get_device(struct avdtp *session);
+struct avdtp_server *avdtp_get_server(struct avdtp_local_sep *lsep);
+
+struct avdtp *avdtp_new(struct avdtp_server *server, GSList *sessions,
+ GIOChannel *chan,
+ struct btd_device *device);
+void avdtp_free(void *data);
+void connection_lost(struct avdtp *session, int err);
+void avdtp_accept(struct avdtp *session);
+bool avdtp_request_authorization(struct avdtp *session, const bdaddr_t *src,
+ const bdaddr_t *dst,
+ service_auth_cb cb);
--
2.1.0
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