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authorLuiz Augusto von Dentz <luiz.dentz@openbossa.org>2007-06-22 20:40:17 +0000
committerLuiz Augusto von Dentz <luiz.dentz@openbossa.org>2007-06-22 20:40:17 +0000
commit8636ace20adebe32149851cf068bf4b0ecb224ee (patch)
tree62d6185b818821ccba93de21ac22e8ecb23bf854 /audio/gateway.c
parent6e1e8ebc4affc8cd47c01bc0d930fdb205e11542 (diff)
Add audio gateway files that implements org.bluez.audio.Gateway interface.
Diffstat (limited to 'audio/gateway.c')
-rw-r--r--audio/gateway.c555
1 files changed, 555 insertions, 0 deletions
diff --git a/audio/gateway.c b/audio/gateway.c
new file mode 100644
index 00000000..2ee67226
--- /dev/null
+++ b/audio/gateway.c
@@ -0,0 +1,555 @@
+/*
+ *
+ * BlueZ - Bluetooth protocol stack for Linux
+ *
+ * Copyright (C) 2004-2007 Marcel Holtmann <marcel@holtmann.org>
+ *
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ *
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <stdio.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <signal.h>
+#include <string.h>
+#include <getopt.h>
+#include <sys/ioctl.h>
+#include <sys/socket.h>
+
+#include <bluetooth/bluetooth.h>
+#include <bluetooth/rfcomm.h>
+
+#include <glib.h>
+
+#include <dbus/dbus.h>
+
+#include "dbus.h"
+#include "dbus-helper.h"
+#include "logging.h"
+#include "manager.h"
+#include "error.h"
+
+static gboolean disable_hfp = FALSE;
+static gboolean sco_over_hci = TRUE;
+
+static uint32_t hs_record_id = 0;
+static uint32_t hf_record_id = 0;
+
+static GIOChannel *hs_server = NULL;
+static GIOChannel *hf_server = NULL;
+
+static DBusConnection *connection = NULL;
+
+static int gateway_hsp_ag_record(sdp_buf_t *buf, uint8_t ch)
+{
+ sdp_list_t *svclass_id, *pfseq, *apseq, *root;
+ uuid_t root_uuid, svclass_uuid, ga_svclass_uuid;
+ uuid_t l2cap_uuid, rfcomm_uuid;
+ sdp_profile_desc_t profile;
+ sdp_list_t *aproto, *proto[2];
+ sdp_record_t record;
+ sdp_data_t *channel;
+ int ret;
+
+ memset(&record, 0, sizeof(sdp_record_t));
+
+ sdp_uuid16_create(&root_uuid, PUBLIC_BROWSE_GROUP);
+ root = sdp_list_append(0, &root_uuid);
+ sdp_set_browse_groups(&record, root);
+
+ sdp_uuid16_create(&svclass_uuid, HEADSET_AGW_SVCLASS_ID);
+ svclass_id = sdp_list_append(0, &svclass_uuid);
+ sdp_uuid16_create(&ga_svclass_uuid, GENERIC_AUDIO_SVCLASS_ID);
+ svclass_id = sdp_list_append(svclass_id, &ga_svclass_uuid);
+ sdp_set_service_classes(&record, svclass_id);
+
+ sdp_uuid16_create(&profile.uuid, HEADSET_PROFILE_ID);
+ profile.version = 0x0100;
+ pfseq = sdp_list_append(0, &profile);
+ sdp_set_profile_descs(&record, pfseq);
+
+ sdp_uuid16_create(&l2cap_uuid, L2CAP_UUID);
+ proto[0] = sdp_list_append(0, &l2cap_uuid);
+ apseq = sdp_list_append(0, proto[0]);
+
+ sdp_uuid16_create(&rfcomm_uuid, RFCOMM_UUID);
+ proto[1] = sdp_list_append(0, &rfcomm_uuid);
+ channel = sdp_data_alloc(SDP_UINT8, &ch);
+ proto[1] = sdp_list_append(proto[1], channel);
+ apseq = sdp_list_append(apseq, proto[1]);
+
+ aproto = sdp_list_append(0, apseq);
+ sdp_set_access_protos(&record, aproto);
+
+ sdp_set_info_attr(&record, "Headset Audio Gateway", 0, 0);
+
+ if (sdp_gen_record_pdu(&record, buf) < 0)
+ ret = -1;
+ else
+ ret = 0;
+
+ sdp_data_free(channel);
+ sdp_list_free(proto[0], 0);
+ sdp_list_free(proto[1], 0);
+ sdp_list_free(apseq, 0);
+ sdp_list_free(pfseq, 0);
+ sdp_list_free(aproto, 0);
+ sdp_list_free(root, 0);
+ sdp_list_free(svclass_id, 0);
+ sdp_list_free(record.attrlist, (sdp_free_func_t) sdp_data_free);
+ sdp_list_free(record.pattern, free);
+
+ return ret;
+}
+
+static int gateway_hfp_ag_record(sdp_buf_t *buf, uint8_t ch)
+{
+ sdp_list_t *svclass_id, *pfseq, *apseq, *root;
+ uuid_t root_uuid, svclass_uuid, ga_svclass_uuid;
+ uuid_t l2cap_uuid, rfcomm_uuid;
+ sdp_profile_desc_t profile;
+ sdp_list_t *aproto, *proto[2];
+ sdp_record_t record;
+ uint16_t u16 = 0x0009;
+ sdp_data_t *channel, *features;
+ uint8_t netid = 0x01;
+ sdp_data_t *network = sdp_data_alloc(SDP_UINT8, &netid);
+ int ret;
+
+ memset(&record, 0, sizeof(sdp_record_t));
+
+ sdp_uuid16_create(&root_uuid, PUBLIC_BROWSE_GROUP);
+ root = sdp_list_append(0, &root_uuid);
+ sdp_set_browse_groups(&record, root);
+
+ sdp_uuid16_create(&svclass_uuid, HANDSFREE_AGW_SVCLASS_ID);
+ svclass_id = sdp_list_append(0, &svclass_uuid);
+ sdp_uuid16_create(&ga_svclass_uuid, GENERIC_AUDIO_SVCLASS_ID);
+ svclass_id = sdp_list_append(svclass_id, &ga_svclass_uuid);
+ sdp_set_service_classes(&record, svclass_id);
+
+ sdp_uuid16_create(&profile.uuid, HANDSFREE_PROFILE_ID);
+ profile.version = 0x0105;
+ pfseq = sdp_list_append(0, &profile);
+ sdp_set_profile_descs(&record, pfseq);
+
+ sdp_uuid16_create(&l2cap_uuid, L2CAP_UUID);
+ proto[0] = sdp_list_append(0, &l2cap_uuid);
+ apseq = sdp_list_append(0, proto[0]);
+
+ sdp_uuid16_create(&rfcomm_uuid, RFCOMM_UUID);
+ proto[1] = sdp_list_append(0, &rfcomm_uuid);
+ channel = sdp_data_alloc(SDP_UINT8, &ch);
+ proto[1] = sdp_list_append(proto[1], channel);
+ apseq = sdp_list_append(apseq, proto[1]);
+
+ features = sdp_data_alloc(SDP_UINT16, &u16);
+ sdp_attr_add(&record, SDP_ATTR_SUPPORTED_FEATURES, features);
+
+ aproto = sdp_list_append(0, apseq);
+ sdp_set_access_protos(&record, aproto);
+
+ sdp_set_info_attr(&record, "Hands-Free Audio Gateway", 0, 0);
+
+ sdp_attr_add(&record, SDP_ATTR_EXTERNAL_NETWORK, network);
+
+ if (sdp_gen_record_pdu(&record, buf) < 0)
+ ret = -1;
+ else
+ ret = 0;
+
+ sdp_data_free(channel);
+ sdp_list_free(proto[0], 0);
+ sdp_list_free(proto[1], 0);
+ sdp_list_free(apseq, 0);
+ sdp_list_free(pfseq, 0);
+ sdp_list_free(aproto, 0);
+ sdp_list_free(root, 0);
+ sdp_list_free(svclass_id, 0);
+ sdp_list_free(record.attrlist, (sdp_free_func_t) sdp_data_free);
+ sdp_list_free(record.pattern, free);
+
+ return ret;
+}
+
+static uint32_t gateway_add_ag_record(uint8_t channel, sdp_buf_t *buf)
+{
+ DBusMessage *msg, *reply;
+ DBusError derr;
+ dbus_uint32_t rec_id;
+
+ msg = dbus_message_new_method_call("org.bluez", "/org/bluez",
+ "org.bluez.Database", "AddServiceRecord");
+ if (!msg) {
+ error("Can't allocate new method call");
+ return 0;
+ }
+
+ dbus_message_append_args(msg, DBUS_TYPE_ARRAY, DBUS_TYPE_BYTE,
+ &buf->data, buf->data_size, DBUS_TYPE_INVALID);
+
+ dbus_error_init(&derr);
+ reply = dbus_connection_send_with_reply_and_block(connection, msg,
+ -1, &derr);
+
+ dbus_message_unref(msg);
+
+ if (dbus_error_is_set(&derr) ||
+ dbus_set_error_from_message(&derr, reply)) {
+ error("Adding service record failed: %s", derr.message);
+ dbus_error_free(&derr);
+ return 0;
+ }
+
+ dbus_message_get_args(reply, &derr, DBUS_TYPE_UINT32, &rec_id,
+ DBUS_TYPE_INVALID);
+
+ if (dbus_error_is_set(&derr)) {
+ error("Invalid arguments to AddServiceRecord reply: %s",
+ derr.message);
+ dbus_message_unref(reply);
+ dbus_error_free(&derr);
+ return 0;
+ }
+
+ dbus_message_unref(reply);
+
+ debug("add_ag_record: got record id 0x%x", rec_id);
+
+ return rec_id;
+}
+
+static int gateway_remove_ag_record(uint32_t rec_id)
+{
+ DBusMessage *msg, *reply;
+ DBusError derr;
+
+ msg = dbus_message_new_method_call("org.bluez", "/org/bluez",
+ "org.bluez.Database",
+ "RemoveServiceRecord");
+ if (!msg) {
+ error("Can't allocate new method call");
+ return 0;
+ }
+
+ dbus_message_append_args(msg, DBUS_TYPE_UINT32, &rec_id,
+ DBUS_TYPE_INVALID);
+
+ dbus_error_init(&derr);
+ reply = dbus_connection_send_with_reply_and_block(connection, msg,
+ -1, &derr);
+
+ dbus_message_unref(msg);
+
+ if (dbus_error_is_set(&derr)) {
+ error("Removing service record 0x%x failed: %s",
+ rec_id, derr.message);
+ dbus_error_free(&derr);
+ return 0;
+ }
+
+ dbus_message_unref(reply);
+
+ return 0;
+}
+
+static void send_cancel_auth(struct device *device)
+{
+ DBusMessage *cancel;
+ char addr[18], *address = addr;
+ const char *uuid;
+
+ if (headset_get_type(device) == SVC_HEADSET)
+ uuid = HSP_AG_UUID;
+ else
+ uuid = HFP_AG_UUID;
+
+ cancel = dbus_message_new_method_call("org.bluez", "/org/bluez",
+ "org.bluez.Database",
+ "CancelAuthorizationRequest");
+ if (!cancel) {
+ error("Unable to allocate new method call");
+ return;
+ }
+
+ ba2str(&device->bda, addr);
+
+ dbus_message_append_args(cancel, DBUS_TYPE_STRING, &address,
+ DBUS_TYPE_STRING, &uuid, DBUS_TYPE_INVALID);
+
+ send_message_and_unref(connection, cancel);
+}
+
+static void auth_cb(DBusPendingCall *call, void *data)
+{
+ struct device *device = data;
+ DBusMessage *reply = dbus_pending_call_steal_reply(call);
+ DBusError err;
+
+ dbus_error_init(&err);
+ if (dbus_set_error_from_message(&err, reply)) {
+ error("Access denied: %s", err.message);
+ if (dbus_error_has_name(&err, DBUS_ERROR_NO_REPLY)) {
+ debug("Canceling authorization request");
+ send_cancel_auth(device);
+ }
+ dbus_error_free(&err);
+ headset_close_rfcomm(device);
+ } else {
+ char hs_address[18];
+
+ headset_set_state(device, HEADSET_STATE_CONNECTED);
+
+ ba2str(&device->bda, hs_address);
+
+ debug("Accepted headset connection from %s for %s", hs_address,
+ device->path);
+ }
+
+ dbus_message_unref(reply);
+}
+
+static gboolean gateway_io_cb(GIOChannel *chan, GIOCondition cond,
+ void *data)
+{
+ int srv_sk, cli_sk;
+ struct sockaddr_rc addr;
+ socklen_t size;
+ char hs_address[18], *address = hs_address;
+ const char *uuid;
+ struct device *device;
+ DBusMessage *auth;
+ DBusPendingCall *pending;
+
+ if (cond & G_IO_NVAL)
+ return FALSE;
+
+ if (cond & (G_IO_HUP | G_IO_ERR)) {
+ error("Hangup or error on rfcomm server socket");
+ g_io_channel_close(chan);
+ raise(SIGTERM);
+ return FALSE;
+ }
+
+ srv_sk = g_io_channel_unix_get_fd(chan);
+
+ size = sizeof(struct sockaddr_rc);
+ cli_sk = accept(srv_sk, (struct sockaddr *) &addr, &size);
+ if (cli_sk < 0) {
+ error("accept: %s (%d)", strerror(errno), errno);
+ return TRUE;
+ }
+
+ device = manager_device_connected(&addr.rc_bdaddr);
+ if (!device) {
+ close(cli_sk);
+ return TRUE;
+ }
+
+ if (headset_get_state(device) > HEADSET_STATE_DISCONNECTED) {
+ debug("Refusing new connection since one already exists");
+ close(cli_sk);
+ return TRUE;
+ }
+
+ if (headset_connect_rfcomm(device, cli_sk) < 0) {
+ error("Allocating new GIOChannel failed!");
+ close(cli_sk);
+ return TRUE;
+ }
+
+ if (chan == hs_server) {
+ headset_set_type(device, SVC_HEADSET);
+ uuid = HSP_AG_UUID;
+ } else {
+ headset_set_type(device, SVC_HANDSFREE);
+ uuid = HFP_AG_UUID;
+ }
+
+ auth = dbus_message_new_method_call("org.bluez", "/org/bluez",
+ "org.bluez.Database",
+ "RequestAuthorization");
+ if (!auth) {
+ error("Unable to allocate RequestAuthorization method call");
+ goto failed;
+ }
+
+ ba2str(&device->bda, hs_address);
+
+ dbus_message_append_args(auth, DBUS_TYPE_STRING, &address,
+ DBUS_TYPE_STRING, &uuid, DBUS_TYPE_INVALID);
+
+ if (!dbus_connection_send_with_reply(connection, auth, &pending, -1)) {
+ error("Sending of authorization request failed");
+ goto failed;
+ }
+
+ dbus_pending_call_set_notify(pending, auth_cb, device, NULL);
+ dbus_pending_call_unref(pending);
+ dbus_message_unref(auth);
+
+ return TRUE;
+
+failed:
+ headset_close_rfcomm(device);
+
+ return TRUE;
+}
+
+static GIOChannel *server_socket(uint8_t *channel)
+{
+ int sock, lm;
+ struct sockaddr_rc addr;
+ socklen_t sa_len;
+ GIOChannel *io;
+
+ sock = socket(AF_BLUETOOTH, SOCK_STREAM, BTPROTO_RFCOMM);
+ if (sock < 0) {
+ error("server socket: %s (%d)", strerror(errno), errno);
+ return NULL;
+ }
+
+ lm = RFCOMM_LM_SECURE;
+ if (setsockopt(sock, SOL_RFCOMM, RFCOMM_LM, &lm, sizeof(lm)) < 0) {
+ error("server setsockopt: %s (%d)", strerror(errno), errno);
+ close(sock);
+ return NULL;
+ }
+
+ memset(&addr, 0, sizeof(addr));
+ addr.rc_family = AF_BLUETOOTH;
+ bacpy(&addr.rc_bdaddr, BDADDR_ANY);
+ addr.rc_channel = channel ? *channel : 0;
+
+ if (bind(sock, (struct sockaddr *) &addr, sizeof(addr)) < 0) {
+ error("server bind: %s", strerror(errno), errno);
+ close(sock);
+ return NULL;
+ }
+
+ if (listen(sock, 1) < 0) {
+ error("server listen: %s", strerror(errno), errno);
+ close(sock);
+ return NULL;
+ }
+
+ sa_len = sizeof(struct sockaddr_rc);
+ getsockname(sock, (struct sockaddr *) &addr, &sa_len);
+ *channel = addr.rc_channel;
+
+ io = g_io_channel_unix_new(sock);
+ if (!io) {
+ error("Unable to allocate new io channel");
+ close(sock);
+ return NULL;
+ }
+
+ return io;
+}
+
+int gateway_init(DBusConnection *conn, gboolean no_hfp, gboolean sco_hci)
+{
+ uint8_t chan = DEFAULT_HS_AG_CHANNEL;
+ sdp_buf_t buf;
+
+ connection = dbus_connection_ref(conn);
+
+ hs_server = server_socket(&chan);
+ if (!hs_server)
+ return -1;
+
+ if (gateway_hsp_ag_record(&buf, chan) < 0) {
+ error("Unable to allocate new service record");
+ return -1;
+ }
+
+ hs_record_id = gateway_add_ag_record(chan, &buf);
+ free(buf.data);
+ if (!hs_record_id) {
+ error("Unable to register HS AG service record");
+ g_io_channel_unref(hs_server);
+ hs_server = NULL;
+ return -1;
+ }
+
+ g_io_add_watch(hs_server, G_IO_IN | G_IO_HUP | G_IO_ERR | G_IO_NVAL,
+ (GIOFunc) gateway_io_cb, NULL);
+
+ disable_hfp = no_hfp;
+
+ sco_over_hci = sco_hci;
+
+ if (disable_hfp)
+ return 0;
+
+ chan = DEFAULT_HF_AG_CHANNEL;
+
+ hf_server = server_socket(&chan);
+ if (!hf_server)
+ return -1;
+
+ if (gateway_hfp_ag_record(&buf, chan) < 0) {
+ error("Unable to allocate new service record");
+ return -1;
+ }
+
+ hf_record_id = gateway_add_ag_record(chan, &buf);
+ free(buf.data);
+ if (!hf_record_id) {
+ error("Unable to register HS AG service record");
+ g_io_channel_unref(hf_server);
+ hs_server = NULL;
+ return -1;
+ }
+
+ g_io_add_watch(hf_server, G_IO_IN | G_IO_HUP | G_IO_ERR | G_IO_NVAL,
+ (GIOFunc) gateway_io_cb, NULL);
+
+ return 0;
+}
+
+void gateway_exit(void)
+{
+ if (hs_record_id) {
+ gateway_remove_ag_record(hs_record_id);
+ hs_record_id = 0;
+ }
+
+ if (hs_server) {
+ g_io_channel_unref(hs_server);
+ hs_server = NULL;
+ }
+
+ if (hf_record_id) {
+ gateway_remove_ag_record(hf_record_id);
+ hf_record_id = 0;
+ }
+
+ if (hf_server) {
+ g_io_channel_unref(hf_server);
+ hf_server = NULL;
+ }
+
+ dbus_connection_unref(connection);
+ connection = NULL;
+}