diff --git a/Makefile.am b/Makefile.am
index eec458e..06332de 100644
--- a/Makefile.am
+++ b/Makefile.am
src/sdpd-service.c src/sdpd-database.c \
src/attrib-server.h src/attrib-server.c \
src/sdp-xml.h src/sdp-xml.c \
+ src/sdp-client.h src/sdp-client.c \
src/textfile.h src/textfile.c src/glib-compat.h \
src/glib-helper.h src/glib-helper.c \
src/oui.h src/oui.c src/uinput.h src/ppoll.h \
diff --git a/audio/gateway.c b/audio/gateway.c
index fb16a3d..9b1aab3 100644
--- a/audio/gateway.c
+++ b/audio/gateway.c
#include <bluetooth/sdp_lib.h>
#include "glib-compat.h"
-#include "glib-helper.h"
+#include "sdp-client.h"
#include "device.h"
#include "gateway.h"
#include "log.h"
diff --git a/audio/headset.c b/audio/headset.c
index e45e216..6aef6a8 100644
--- a/audio/headset.c
+++ b/audio/headset.c
#include "telephony.h"
#include "headset.h"
#include "glib-compat.h"
-#include "glib-helper.h"
+#include "sdp-client.h"
#include "btio.h"
#include "dbus-common.h"
#include "../src/adapter.h"
diff --git a/health/hdp_util.c b/health/hdp_util.c
index 9c088d4..e62ed46 100644
--- a/health/hdp_util.c
+++ b/health/hdp_util.c
#include <sdpd.h>
#include <bluetooth/sdp_lib.h>
+#include <sdp-client.h>
#include <glib-helper.h>
#include <btio.h>
diff --git a/serial/port.c b/serial/port.c
index 045f459..fa302be 100644
--- a/serial/port.c
+++ b/serial/port.c
#include "log.h"
#include "glib-compat.h"
#include "glib-helper.h"
+#include "sdp-client.h"
#include "btio.h"
#include "error.h"
diff --git a/src/device.c b/src/device.c
index 339c001..bb97089 100644
--- a/src/device.c
+++ b/src/device.c
#include "error.h"
#include "glib-compat.h"
#include "glib-helper.h"
+#include "sdp-client.h"
#include "gatt.h"
#include "agent.h"
#include "sdp-xml.h"
diff --git a/src/glib-helper.c b/src/glib-helper.c
index bb8883e..8189a09 100644
--- a/src/glib-helper.c
+++ b/src/glib-helper.c
#include <stdlib.h>
#include <errno.h>
-#include <unistd.h>
-#include <sys/ioctl.h>
-#include <sys/socket.h>
#include <bluetooth/bluetooth.h>
#include <bluetooth/sdp.h>
#include <glib.h>
#include "btio.h"
-#include "sdpd.h"
#include "glib-compat.h"
#include "glib-helper.h"
-/* Number of seconds to keep a sdp_session_t in the cache */
-#define CACHE_TIMEOUT 2
-
-struct cached_sdp_session {
- bdaddr_t src;
- bdaddr_t dst;
- sdp_session_t *session;
- guint timer;
-};
-
-static GSList *cached_sdp_sessions = NULL;
-
-static gboolean cached_session_expired(gpointer user_data)
-{
- struct cached_sdp_session *cached = user_data;
-
- cached_sdp_sessions = g_slist_remove(cached_sdp_sessions, cached);
-
- sdp_close(cached->session);
-
- g_free(cached);
-
- return FALSE;
-}
-
-static sdp_session_t *get_sdp_session(const bdaddr_t *src, const bdaddr_t *dst)
-{
- GSList *l;
-
- for (l = cached_sdp_sessions; l != NULL; l = l->next) {
- struct cached_sdp_session *c = l->data;
- sdp_session_t *session;
-
- if (bacmp(&c->src, src) || bacmp(&c->dst, dst))
- continue;
-
- g_source_remove(c->timer);
-
- session = c->session;
-
- cached_sdp_sessions = g_slist_remove(cached_sdp_sessions, c);
- g_free(c);
-
- return session;
- }
-
- return sdp_connect(src, dst, SDP_NON_BLOCKING);
-}
-
-static void cache_sdp_session(bdaddr_t *src, bdaddr_t *dst,
- sdp_session_t *session)
-{
- struct cached_sdp_session *cached;
-
- cached = g_new0(struct cached_sdp_session, 1);
-
- bacpy(&cached->src, src);
- bacpy(&cached->dst, dst);
-
- cached->session = session;
-
- cached_sdp_sessions = g_slist_append(cached_sdp_sessions, cached);
-
- cached->timer = g_timeout_add_seconds(CACHE_TIMEOUT,
- cached_session_expired,
- cached);
-}
-
-struct search_context {
- bdaddr_t src;
- bdaddr_t dst;
- sdp_session_t *session;
- bt_callback_t cb;
- bt_destroy_t destroy;
- gpointer user_data;
- uuid_t uuid;
- guint io_id;
-};
-
-static GSList *context_list = NULL;
-
-static void search_context_cleanup(struct search_context *ctxt)
-{
- context_list = g_slist_remove(context_list, ctxt);
-
- if (ctxt->destroy)
- ctxt->destroy(ctxt->user_data);
-
- g_free(ctxt);
-}
-
-static void search_completed_cb(uint8_t type, uint16_t status,
- uint8_t *rsp, size_t size, void *user_data)
-{
- struct search_context *ctxt = user_data;
- sdp_list_t *recs = NULL;
- int scanned, seqlen = 0, bytesleft = size;
- uint8_t dataType;
- int err = 0;
-
- if (status || type != SDP_SVC_SEARCH_ATTR_RSP) {
- err = -EPROTO;
- goto done;
- }
-
- scanned = sdp_extract_seqtype(rsp, bytesleft, &dataType, &seqlen);
- if (!scanned || !seqlen)
- goto done;
-
- rsp += scanned;
- bytesleft -= scanned;
- do {
- sdp_record_t *rec;
- int recsize;
-
- recsize = 0;
- rec = sdp_extract_pdu(rsp, bytesleft, &recsize);
- if (!rec)
- break;
-
- if (!recsize) {
- sdp_record_free(rec);
- break;
- }
-
- scanned += recsize;
- rsp += recsize;
- bytesleft -= recsize;
-
- recs = sdp_list_append(recs, rec);
- } while (scanned < (ssize_t) size && bytesleft > 0);
-
-done:
- cache_sdp_session(&ctxt->src, &ctxt->dst, ctxt->session);
-
- if (ctxt->cb)
- ctxt->cb(recs, err, ctxt->user_data);
-
- if (recs)
- sdp_list_free(recs, (sdp_free_func_t) sdp_record_free);
-
- search_context_cleanup(ctxt);
-}
-
-static gboolean search_process_cb(GIOChannel *chan, GIOCondition cond,
- gpointer user_data)
-{
- struct search_context *ctxt = user_data;
- int err = 0;
-
- if (cond & (G_IO_ERR | G_IO_HUP | G_IO_NVAL)) {
- err = EIO;
- goto failed;
- }
-
- if (sdp_process(ctxt->session) < 0)
- goto failed;
-
- return TRUE;
-
-failed:
- if (err) {
- sdp_close(ctxt->session);
- ctxt->session = NULL;
-
- if (ctxt->cb)
- ctxt->cb(NULL, err, ctxt->user_data);
-
- search_context_cleanup(ctxt);
- }
-
- return FALSE;
-}
-
-static gboolean connect_watch(GIOChannel *chan, GIOCondition cond,
- gpointer user_data)
-{
- struct search_context *ctxt = user_data;
- sdp_list_t *search, *attrids;
- uint32_t range = 0x0000ffff;
- socklen_t len;
- int sk, err = 0;
-
- sk = g_io_channel_unix_get_fd(chan);
- ctxt->io_id = 0;
-
- len = sizeof(err);
- if (getsockopt(sk, SOL_SOCKET, SO_ERROR, &err, &len) < 0) {
- err = errno;
- goto failed;
- }
-
- if (err != 0)
- goto failed;
-
- if (sdp_set_notify(ctxt->session, search_completed_cb, ctxt) < 0) {
- err = EIO;
- goto failed;
- }
-
- search = sdp_list_append(NULL, &ctxt->uuid);
- attrids = sdp_list_append(NULL, &range);
- if (sdp_service_search_attr_async(ctxt->session,
- search, SDP_ATTR_REQ_RANGE, attrids) < 0) {
- sdp_list_free(attrids, NULL);
- sdp_list_free(search, NULL);
- err = EIO;
- goto failed;
- }
-
- sdp_list_free(attrids, NULL);
- sdp_list_free(search, NULL);
-
- /* Set callback responsible for update the internal SDP transaction */
- ctxt->io_id = g_io_add_watch(chan,
- G_IO_IN | G_IO_HUP | G_IO_ERR | G_IO_NVAL,
- search_process_cb, ctxt);
- return FALSE;
-
-failed:
- sdp_close(ctxt->session);
- ctxt->session = NULL;
-
- if (ctxt->cb)
- ctxt->cb(NULL, -err, ctxt->user_data);
-
- search_context_cleanup(ctxt);
-
- return FALSE;
-}
-
-static int create_search_context(struct search_context **ctxt,
- const bdaddr_t *src,
- const bdaddr_t *dst,
- uuid_t *uuid)
-{
- sdp_session_t *s;
- GIOChannel *chan;
-
- if (!ctxt)
- return -EINVAL;
-
- s = get_sdp_session(src, dst);
- if (!s)
- return -errno;
-
- *ctxt = g_try_malloc0(sizeof(struct search_context));
- if (!*ctxt) {
- sdp_close(s);
- return -ENOMEM;
- }
-
- bacpy(&(*ctxt)->src, src);
- bacpy(&(*ctxt)->dst, dst);
- (*ctxt)->session = s;
- (*ctxt)->uuid = *uuid;
-
- chan = g_io_channel_unix_new(sdp_get_socket(s));
- (*ctxt)->io_id = g_io_add_watch(chan,
- G_IO_OUT | G_IO_HUP | G_IO_ERR | G_IO_NVAL,
- connect_watch, *ctxt);
- g_io_channel_unref(chan);
-
- return 0;
-}
-
-int bt_search_service(const bdaddr_t *src, const bdaddr_t *dst,
- uuid_t *uuid, bt_callback_t cb, void *user_data,
- bt_destroy_t destroy)
-{
- struct search_context *ctxt = NULL;
- int err;
-
- if (!cb)
- return -EINVAL;
-
- err = create_search_context(&ctxt, src, dst, uuid);
- if (err < 0)
- return err;
-
- ctxt->cb = cb;
- ctxt->destroy = destroy;
- ctxt->user_data = user_data;
-
- context_list = g_slist_append(context_list, ctxt);
-
- return 0;
-}
-
-static gint find_by_bdaddr(gconstpointer data, gconstpointer user_data)
-{
- const struct search_context *ctxt = data, *search = user_data;
- int ret;
-
- ret = bacmp(&ctxt->src, &search->src);
- if (ret != 0)
- return ret;
-
- return bacmp(&ctxt->dst, &search->dst);
-}
-
-int bt_cancel_discovery(const bdaddr_t *src, const bdaddr_t *dst)
-{
- struct search_context match, *ctxt;
- GSList *l;
-
- memset(&match, 0, sizeof(match));
- bacpy(&match.src, src);
- bacpy(&match.dst, dst);
-
- /* Ongoing SDP Discovery */
- l = g_slist_find_custom(context_list, &match, find_by_bdaddr);
- if (l == NULL)
- return -ENOENT;
-
- ctxt = l->data;
-
- if (!ctxt->session)
- return -ENOTCONN;
-
- if (ctxt->io_id)
- g_source_remove(ctxt->io_id);
-
- if (ctxt->session)
- sdp_close(ctxt->session);
-
- search_context_cleanup(ctxt);
-
- return 0;
-}
-
char *bt_uuid2string(uuid_t *uuid)
{
gchar *str;
diff --git a/src/glib-helper.h b/src/glib-helper.h
index c83f5e2..8836804 100644
--- a/src/glib-helper.h
+++ b/src/glib-helper.h
*
*/
-typedef void (*bt_callback_t) (sdp_list_t *recs, int err, gpointer user_data);
-typedef void (*bt_destroy_t) (gpointer user_data);
-
-int bt_search_service(const bdaddr_t *src, const bdaddr_t *dst,
- uuid_t *uuid, bt_callback_t cb, void *user_data,
- bt_destroy_t destroy);
-int bt_cancel_discovery(const bdaddr_t *src, const bdaddr_t *dst);
-
gchar *bt_uuid2string(uuid_t *uuid);
char *bt_name2string(const char *string);
int bt_string2uuid(uuid_t *uuid, const char *string);
diff --git a/src/sdp-client.c b/src/sdp-client.c
new file mode 100644
index 0000000..ebd760e
--- /dev/null
+++ b/src/sdp-client.c
+/*
+ *
+ * BlueZ - Bluetooth protocol stack for Linux
+ *
+ * Copyright (C) 2004-2011 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 <errno.h>
+
+#include <bluetooth/bluetooth.h>
+#include <bluetooth/sdp.h>
+#include <bluetooth/sdp_lib.h>
+
+#include <glib.h>
+
+#include "btio.h"
+#include "sdp-client.h"
+
+/* Number of seconds to keep a sdp_session_t in the cache */
+#define CACHE_TIMEOUT 2
+
+struct cached_sdp_session {
+ bdaddr_t src;
+ bdaddr_t dst;
+ sdp_session_t *session;
+ guint timer;
+};
+
+static GSList *cached_sdp_sessions = NULL;
+
+static gboolean cached_session_expired(gpointer user_data)
+{
+ struct cached_sdp_session *cached = user_data;
+
+ cached_sdp_sessions = g_slist_remove(cached_sdp_sessions, cached);
+
+ sdp_close(cached->session);
+
+ g_free(cached);
+
+ return FALSE;
+}
+
+static sdp_session_t *get_sdp_session(const bdaddr_t *src, const bdaddr_t *dst)
+{
+ GSList *l;
+
+ for (l = cached_sdp_sessions; l != NULL; l = l->next) {
+ struct cached_sdp_session *c = l->data;
+ sdp_session_t *session;
+
+ if (bacmp(&c->src, src) || bacmp(&c->dst, dst))
+ continue;
+
+ g_source_remove(c->timer);
+
+ session = c->session;
+
+ cached_sdp_sessions = g_slist_remove(cached_sdp_sessions, c);
+ g_free(c);
+
+ return session;
+ }
+
+ return sdp_connect(src, dst, SDP_NON_BLOCKING);
+}
+
+static void cache_sdp_session(bdaddr_t *src, bdaddr_t *dst,
+ sdp_session_t *session)
+{
+ struct cached_sdp_session *cached;
+
+ cached = g_new0(struct cached_sdp_session, 1);
+
+ bacpy(&cached->src, src);
+ bacpy(&cached->dst, dst);
+
+ cached->session = session;
+
+ cached_sdp_sessions = g_slist_append(cached_sdp_sessions, cached);
+
+ cached->timer = g_timeout_add_seconds(CACHE_TIMEOUT,
+ cached_session_expired,
+ cached);
+}
+
+struct search_context {
+ bdaddr_t src;
+ bdaddr_t dst;
+ sdp_session_t *session;
+ bt_callback_t cb;
+ bt_destroy_t destroy;
+ gpointer user_data;
+ uuid_t uuid;
+ guint io_id;
+};
+
+static GSList *context_list = NULL;
+
+static void search_context_cleanup(struct search_context *ctxt)
+{
+ context_list = g_slist_remove(context_list, ctxt);
+
+ if (ctxt->destroy)
+ ctxt->destroy(ctxt->user_data);
+
+ g_free(ctxt);
+}
+
+static void search_completed_cb(uint8_t type, uint16_t status,
+ uint8_t *rsp, size_t size, void *user_data)
+{
+ struct search_context *ctxt = user_data;
+ sdp_list_t *recs = NULL;
+ int scanned, seqlen = 0, bytesleft = size;
+ uint8_t dataType;
+ int err = 0;
+
+ if (status || type != SDP_SVC_SEARCH_ATTR_RSP) {
+ err = -EPROTO;
+ goto done;
+ }
+
+ scanned = sdp_extract_seqtype(rsp, bytesleft, &dataType, &seqlen);
+ if (!scanned || !seqlen)
+ goto done;
+
+ rsp += scanned;
+ bytesleft -= scanned;
+ do {
+ sdp_record_t *rec;
+ int recsize;
+
+ recsize = 0;
+ rec = sdp_extract_pdu(rsp, bytesleft, &recsize);
+ if (!rec)
+ break;
+
+ if (!recsize) {
+ sdp_record_free(rec);
+ break;
+ }
+
+ scanned += recsize;
+ rsp += recsize;
+ bytesleft -= recsize;
+
+ recs = sdp_list_append(recs, rec);
+ } while (scanned < (ssize_t) size && bytesleft > 0);
+
+done:
+ cache_sdp_session(&ctxt->src, &ctxt->dst, ctxt->session);
+
+ if (ctxt->cb)
+ ctxt->cb(recs, err, ctxt->user_data);
+
+ if (recs)
+ sdp_list_free(recs, (sdp_free_func_t) sdp_record_free);
+
+ search_context_cleanup(ctxt);
+}
+
+static gboolean search_process_cb(GIOChannel *chan, GIOCondition cond,
+ gpointer user_data)
+{
+ struct search_context *ctxt = user_data;
+ int err = 0;
+
+ if (cond & (G_IO_ERR | G_IO_HUP | G_IO_NVAL)) {
+ err = EIO;
+ goto failed;
+ }
+
+ if (sdp_process(ctxt->session) < 0)
+ goto failed;
+
+ return TRUE;
+
+failed:
+ if (err) {
+ sdp_close(ctxt->session);
+ ctxt->session = NULL;
+
+ if (ctxt->cb)
+ ctxt->cb(NULL, err, ctxt->user_data);
+
+ search_context_cleanup(ctxt);
+ }
+
+ return FALSE;
+}
+
+static gboolean connect_watch(GIOChannel *chan, GIOCondition cond,
+ gpointer user_data)
+{
+ struct search_context *ctxt = user_data;
+ sdp_list_t *search, *attrids;
+ uint32_t range = 0x0000ffff;
+ socklen_t len;
+ int sk, err = 0;
+
+ sk = g_io_channel_unix_get_fd(chan);
+ ctxt->io_id = 0;
+
+ len = sizeof(err);
+ if (getsockopt(sk, SOL_SOCKET, SO_ERROR, &err, &len) < 0) {
+ err = errno;
+ goto failed;
+ }
+
+ if (err != 0)
+ goto failed;
+
+ if (sdp_set_notify(ctxt->session, search_completed_cb, ctxt) < 0) {
+ err = EIO;
+ goto failed;
+ }
+
+ search = sdp_list_append(NULL, &ctxt->uuid);
+ attrids = sdp_list_append(NULL, &range);
+ if (sdp_service_search_attr_async(ctxt->session,
+ search, SDP_ATTR_REQ_RANGE, attrids) < 0) {
+ sdp_list_free(attrids, NULL);
+ sdp_list_free(search, NULL);
+ err = EIO;
+ goto failed;
+ }
+
+ sdp_list_free(attrids, NULL);
+ sdp_list_free(search, NULL);
+
+ /* Set callback responsible for update the internal SDP transaction */
+ ctxt->io_id = g_io_add_watch(chan,
+ G_IO_IN | G_IO_HUP | G_IO_ERR | G_IO_NVAL,
+ search_process_cb, ctxt);
+ return FALSE;
+
+failed:
+ sdp_close(ctxt->session);
+ ctxt->session = NULL;
+
+ if (ctxt->cb)
+ ctxt->cb(NULL, -err, ctxt->user_data);
+
+ search_context_cleanup(ctxt);
+
+ return FALSE;
+}
+
+static int create_search_context(struct search_context **ctxt,
+ const bdaddr_t *src,
+ const bdaddr_t *dst,
+ uuid_t *uuid)
+{
+ sdp_session_t *s;
+ GIOChannel *chan;
+
+ if (!ctxt)
+ return -EINVAL;
+
+ s = get_sdp_session(src, dst);
+ if (!s)
+ return -errno;
+
+ *ctxt = g_try_malloc0(sizeof(struct search_context));
+ if (!*ctxt) {
+ sdp_close(s);
+ return -ENOMEM;
+ }
+
+ bacpy(&(*ctxt)->src, src);
+ bacpy(&(*ctxt)->dst, dst);
+ (*ctxt)->session = s;
+ (*ctxt)->uuid = *uuid;
+
+ chan = g_io_channel_unix_new(sdp_get_socket(s));
+ (*ctxt)->io_id = g_io_add_watch(chan,
+ G_IO_OUT | G_IO_HUP | G_IO_ERR | G_IO_NVAL,
+ connect_watch, *ctxt);
+ g_io_channel_unref(chan);
+
+ return 0;
+}
+
+int bt_search_service(const bdaddr_t *src, const bdaddr_t *dst,
+ uuid_t *uuid, bt_callback_t cb, void *user_data,
+ bt_destroy_t destroy)
+{
+ struct search_context *ctxt = NULL;
+ int err;
+
+ if (!cb)
+ return -EINVAL;
+
+ err = create_search_context(&ctxt, src, dst, uuid);
+ if (err < 0)
+ return err;
+
+ ctxt->cb = cb;
+ ctxt->destroy = destroy;
+ ctxt->user_data = user_data;
+
+ context_list = g_slist_append(context_list, ctxt);
+
+ return 0;
+}
+
+static gint find_by_bdaddr(gconstpointer data, gconstpointer user_data)
+{
+ const struct search_context *ctxt = data, *search = user_data;
+ int ret;
+
+ ret = bacmp(&ctxt->src, &search->src);
+ if (ret != 0)
+ return ret;
+
+ return bacmp(&ctxt->dst, &search->dst);
+}
+
+int bt_cancel_discovery(const bdaddr_t *src, const bdaddr_t *dst)
+{
+ struct search_context match, *ctxt;
+ GSList *l;
+
+ memset(&match, 0, sizeof(match));
+ bacpy(&match.src, src);
+ bacpy(&match.dst, dst);
+
+ /* Ongoing SDP Discovery */
+ l = g_slist_find_custom(context_list, &match, find_by_bdaddr);
+ if (l == NULL)
+ return -ENOENT;
+
+ ctxt = l->data;
+
+ if (!ctxt->session)
+ return -ENOTCONN;
+
+ if (ctxt->io_id)
+ g_source_remove(ctxt->io_id);
+
+ if (ctxt->session)
+ sdp_close(ctxt->session);
+
+ search_context_cleanup(ctxt);
+
+ return 0;
+}
+
diff --git a/src/sdp-client.h b/src/sdp-client.h
new file mode 100644
index 0000000..13d9121
--- /dev/null
+++ b/src/sdp-client.h
+/*
+ *
+ * BlueZ - Bluetooth protocol stack for Linux
+ *
+ * Copyright (C) 2004-2010 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
+ *
+ */
+
+typedef void (*bt_callback_t) (sdp_list_t *recs, int err, gpointer user_data);
+typedef void (*bt_destroy_t) (gpointer user_data);
+
+int bt_search_service(const bdaddr_t *src, const bdaddr_t *dst,
+ uuid_t *uuid, bt_callback_t cb, void *user_data,
+ bt_destroy_t destroy);
+int bt_cancel_discovery(const bdaddr_t *src, const bdaddr_t *dst);