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      1 /*
      2  *
      3  *  BlueZ - Bluetooth protocol stack for Linux
      4  *
      5  *  Copyright (C) 2006-2010  Nokia Corporation
      6  *  Copyright (C) 2004-2010  Marcel Holtmann <marcel (at) holtmann.org>
      7  *
      8  *
      9  *  This program is free software; you can redistribute it and/or modify
     10  *  it under the terms of the GNU General Public License as published by
     11  *  the Free Software Foundation; either version 2 of the License, or
     12  *  (at your option) any later version.
     13  *
     14  *  This program is distributed in the hope that it will be useful,
     15  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
     16  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     17  *  GNU General Public License for more details.
     18  *
     19  *  You should have received a copy of the GNU General Public License
     20  *  along with this program; if not, write to the Free Software
     21  *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
     22  *
     23  */
     24 
     25 #include <bluetooth/bluetooth.h>
     26 #include <bluetooth/sdp.h>
     27 #include <bluetooth/hci.h>
     28 #include <bluetooth/hci_lib.h>
     29 #include <dbus/dbus.h>
     30 #include <glib.h>
     31 
     32 #define ADAPTER_INTERFACE	"org.bluez.Adapter"
     33 
     34 #define MODE_OFF		0x00
     35 #define MODE_CONNECTABLE	0x01
     36 #define MODE_DISCOVERABLE	0x02
     37 #define MODE_UNKNOWN		0xff
     38 
     39 /* Discover states */
     40 #define STATE_IDLE		0
     41 #define STATE_DISCOV		1
     42 #define STATE_RESOLVNAME	2
     43 #define STATE_SUSPENDED		3
     44 
     45 #define MAX_NAME_LENGTH		248
     46 
     47 /* Invalid SSP passkey value used to indicate negative replies */
     48 #define INVALID_PASSKEY		0xffffffff
     49 
     50 typedef enum {
     51 	NAME_ANY,
     52 	NAME_NOT_REQUIRED, /* used by get remote name without name resolving */
     53 	NAME_REQUIRED,      /* remote name needs be resolved       */
     54 	NAME_REQUESTED,    /* HCI remote name request was sent    */
     55 } name_status_t;
     56 
     57 struct btd_adapter;
     58 
     59 struct link_key_info {
     60 	bdaddr_t bdaddr;
     61 	unsigned char key[16];
     62 	uint8_t type;
     63 	uint8_t pin_len;
     64 };
     65 
     66 struct remote_dev_info {
     67 	bdaddr_t bdaddr;
     68 	int8_t rssi;
     69 	uint32_t class;
     70 	char *name;
     71 	char *alias;
     72 	dbus_bool_t legacy;
     73 	name_status_t name_status;
     74 	gboolean le;
     75 	char **uuids;
     76 	size_t uuid_count;
     77 	GSList *services;
     78 	uint8_t bdaddr_type;
     79 	uint8_t flags;
     80 };
     81 
     82 void btd_adapter_start(struct btd_adapter *adapter);
     83 
     84 int btd_adapter_stop(struct btd_adapter *adapter);
     85 
     86 void btd_adapter_get_mode(struct btd_adapter *adapter, uint8_t *mode,
     87 					uint8_t *on_mode, gboolean *pairable);
     88 
     89 struct btd_device *adapter_get_device(DBusConnection *conn,
     90 				struct btd_adapter *adapter, const char *address);
     91 
     92 struct btd_device *adapter_find_device(struct btd_adapter *adapter, const char *dest);
     93 
     94 void adapter_remove_device(DBusConnection *conn, struct btd_adapter *adapter,
     95 						struct btd_device *device,
     96 						gboolean remove_storage);
     97 
     98 int adapter_resolve_names(struct btd_adapter *adapter);
     99 
    100 struct btd_adapter *adapter_create(DBusConnection *conn, int id);
    101 gboolean adapter_init(struct btd_adapter *adapter);
    102 void adapter_remove(struct btd_adapter *adapter);
    103 uint16_t adapter_get_dev_id(struct btd_adapter *adapter);
    104 const gchar *adapter_get_path(struct btd_adapter *adapter);
    105 void adapter_get_address(struct btd_adapter *adapter, bdaddr_t *bdaddr);
    106 void adapter_set_state(struct btd_adapter *adapter, int state);
    107 int adapter_get_state(struct btd_adapter *adapter);
    108 int adapter_get_discover_type(struct btd_adapter *adapter);
    109 struct remote_dev_info *adapter_search_found_devices(struct btd_adapter *adapter,
    110 						struct remote_dev_info *match);
    111 void adapter_update_found_devices(struct btd_adapter *adapter, bdaddr_t *bdaddr,
    112 						uint32_t class, int8_t rssi,
    113 						uint8_t *data);
    114 int adapter_remove_found_device(struct btd_adapter *adapter, bdaddr_t *bdaddr);
    115 void adapter_emit_device_found(struct btd_adapter *adapter,
    116 						struct remote_dev_info *dev);
    117 void adapter_mode_changed(struct btd_adapter *adapter, uint8_t scan_mode);
    118 void adapter_update_local_name(struct btd_adapter *adapter, const char *name);
    119 void adapter_service_insert(struct btd_adapter *adapter, void *rec);
    120 void adapter_service_remove(struct btd_adapter *adapter, void *rec);
    121 void btd_adapter_class_changed(struct btd_adapter *adapter,
    122 							uint32_t new_class);
    123 void btd_adapter_pairable_changed(struct btd_adapter *adapter,
    124 							gboolean pairable);
    125 
    126 struct agent *adapter_get_agent(struct btd_adapter *adapter);
    127 void adapter_add_connection(struct btd_adapter *adapter,
    128 						struct btd_device *device);
    129 void adapter_remove_connection(struct btd_adapter *adapter,
    130 						struct btd_device *device);
    131 gboolean adapter_has_discov_sessions(struct btd_adapter *adapter);
    132 void adapter_suspend_discovery(struct btd_adapter *adapter);
    133 void adapter_resume_discovery(struct btd_adapter *adapter);
    134 
    135 struct btd_adapter *btd_adapter_ref(struct btd_adapter *adapter);
    136 void btd_adapter_unref(struct btd_adapter *adapter);
    137 
    138 int btd_adapter_set_class(struct btd_adapter *adapter, uint8_t major,
    139 							uint8_t minor);
    140 
    141 struct btd_adapter_driver {
    142 	const char *name;
    143 	int (*probe) (struct btd_adapter *adapter);
    144 	void (*remove) (struct btd_adapter *adapter);
    145 };
    146 
    147 typedef void (*service_auth_cb) (DBusError *derr, void *user_data);
    148 
    149 int btd_register_adapter_driver(struct btd_adapter_driver *driver);
    150 void btd_unregister_adapter_driver(struct btd_adapter_driver *driver);
    151 int btd_request_authorization(const bdaddr_t *src, const bdaddr_t *dst,
    152 		const char *uuid, service_auth_cb cb, void *user_data);
    153 int btd_cancel_authorization(const bdaddr_t *src, const bdaddr_t *dst);
    154 
    155 const char *adapter_any_get_path(void);
    156 
    157 const char *btd_adapter_any_request_path(void);
    158 void btd_adapter_any_release_path(void);
    159 gboolean adapter_is_pairable(struct btd_adapter *adapter);
    160 gboolean adapter_powering_down(struct btd_adapter *adapter);
    161 
    162 int btd_adapter_restore_powered(struct btd_adapter *adapter);
    163 int btd_adapter_switch_online(struct btd_adapter *adapter);
    164 int btd_adapter_switch_offline(struct btd_adapter *adapter);
    165 
    166 typedef void (*bt_hci_result_t) (uint8_t status, gpointer user_data);
    167 
    168 struct btd_adapter_ops {
    169 	int (*setup) (void);
    170 	void (*cleanup) (void);
    171 	int (*set_powered) (int index, gboolean powered);
    172 	int (*set_discoverable) (int index, gboolean discoverable);
    173 	int (*set_pairable) (int index, gboolean pairable);
    174 	int (*set_limited_discoverable) (int index, gboolean limited);
    175 	int (*start_discovery) (int index);
    176 	int (*stop_discovery) (int index);
    177 
    178 	int (*resolve_name) (int index, bdaddr_t *bdaddr);
    179 	int (*cancel_resolve_name) (int index, bdaddr_t *bdaddr);
    180 	int (*set_name) (int index, const char *name);
    181 	int (*set_dev_class) (int index, uint8_t major, uint8_t minor);
    182 	int (*set_fast_connectable) (int index, gboolean enable);
    183 	int (*read_clock) (int index, bdaddr_t *bdaddr, int which, int timeout,
    184 					uint32_t *clock, uint16_t *accuracy);
    185 	int (*read_bdaddr) (int index, bdaddr_t *bdaddr);
    186 	int (*block_device) (int index, bdaddr_t *bdaddr);
    187 	int (*unblock_device) (int index, bdaddr_t *bdaddr);
    188 	int (*get_conn_list) (int index, GSList **conns);
    189 	int (*read_local_features) (int index, uint8_t *features);
    190 	int (*disconnect) (int index, bdaddr_t *bdaddr);
    191 	int (*remove_bonding) (int index, bdaddr_t *bdaddr);
    192 	int (*pincode_reply) (int index, bdaddr_t *bdaddr, const char *pin,
    193 							size_t pin_len);
    194 	int (*confirm_reply) (int index, bdaddr_t *bdaddr, gboolean success);
    195 	int (*passkey_reply) (int index, bdaddr_t *bdaddr, uint32_t passkey);
    196 	int (*enable_le) (int index);
    197 	int (*encrypt_link) (int index, bdaddr_t *bdaddr, bt_hci_result_t cb,
    198 							gpointer user_data);
    199 	int (*set_did) (int index, uint16_t vendor, uint16_t product,
    200 							uint16_t version);
    201 	int (*add_uuid) (int index, uuid_t *uuid, uint8_t svc_hint);
    202 	int (*remove_uuid) (int index, uuid_t *uuid);
    203 	int (*disable_cod_cache) (int index);
    204 	int (*restore_powered) (int index);
    205 	int (*load_keys) (int index, GSList *keys, gboolean debug_keys);
    206 	int (*set_io_capability) (int index, uint8_t io_capability);
    207 	int (*create_bonding) (int index, bdaddr_t *bdaddr, uint8_t io_cap);
    208 	int (*cancel_bonding) (int index, bdaddr_t *bdaddr);
    209 	int (*read_local_oob_data) (int index);
    210 	int (*add_remote_oob_data) (int index, bdaddr_t *bdaddr, uint8_t *hash,
    211 							uint8_t *randomizer);
    212 	int (*remove_remote_oob_data) (int index, bdaddr_t *bdaddr);
    213 	int (*set_link_timeout) (int index, bdaddr_t *bdaddr, uint32_t num_slots);
    214 	int (*retry_authentication) (int index, bdaddr_t *bdaddr);
    215 };
    216 
    217 int btd_register_adapter_ops(struct btd_adapter_ops *ops, gboolean priority);
    218 void btd_adapter_cleanup_ops(struct btd_adapter_ops *btd_adapter_ops);
    219 int adapter_ops_setup(void);
    220 
    221 typedef void (*btd_adapter_powered_cb) (struct btd_adapter *adapter,
    222 						gboolean powered);
    223 void btd_adapter_register_powered_callback(struct btd_adapter *adapter,
    224 						btd_adapter_powered_cb cb);
    225 void btd_adapter_unregister_powered_callback(struct btd_adapter *adapter,
    226 						btd_adapter_powered_cb cb);
    227 
    228 /* If TRUE, enables fast connectabe, i.e. reduces page scan interval and changes
    229  * type. If FALSE, disables fast connectable, i.e. sets page scan interval and
    230  * type to default values. Valid for both connectable and discoverable modes. */
    231 int btd_adapter_set_fast_connectable(struct btd_adapter *adapter,
    232 							gboolean enable);
    233 
    234 int btd_adapter_read_clock(struct btd_adapter *adapter, bdaddr_t *bdaddr,
    235 				int which, int timeout, uint32_t *clock,
    236 				uint16_t *accuracy);
    237 
    238 int btd_adapter_block_address(struct btd_adapter *adapter, bdaddr_t *bdaddr);
    239 int btd_adapter_unblock_address(struct btd_adapter *adapter, bdaddr_t *bdaddr);
    240 
    241 int btd_adapter_disconnect_device(struct btd_adapter *adapter,
    242 							bdaddr_t *bdaddr);
    243 
    244 int btd_adapter_remove_bonding(struct btd_adapter *adapter, bdaddr_t *bdaddr);
    245 
    246 int btd_adapter_pincode_reply(struct btd_adapter *adapter, bdaddr_t *bdaddr,
    247 					const char *pin, size_t pin_len);
    248 int btd_adapter_confirm_reply(struct btd_adapter *adapter, bdaddr_t *bdaddr,
    249 							gboolean success);
    250 int btd_adapter_passkey_reply(struct btd_adapter *adapter, bdaddr_t *bdaddr,
    251 							uint32_t passkey);
    252 
    253 int btd_adapter_encrypt_link(struct btd_adapter *adapter, bdaddr_t *bdaddr,
    254 				bt_hci_result_t cb, gpointer user_data);
    255 
    256 int btd_adapter_retry_authentication(struct btd_adapter *adapter,
    257 				bdaddr_t *bdaddr);
    258 
    259 int btd_adapter_set_did(struct btd_adapter *adapter, uint16_t vendor,
    260 					uint16_t product, uint16_t version);
    261 
    262 int adapter_create_bonding(struct btd_adapter *adapter, bdaddr_t *bdaddr,
    263 							uint8_t io_cap);
    264 
    265 int adapter_cancel_bonding(struct btd_adapter *adapter, bdaddr_t *bdaddr);
    266 
    267 int btd_adapter_read_local_oob_data(struct btd_adapter *adapter);
    268 
    269 int btd_adapter_add_remote_oob_data(struct btd_adapter *adapter,
    270 			bdaddr_t *bdaddr, uint8_t *hash, uint8_t *randomizer);
    271 
    272 int btd_adapter_remove_remote_oob_data(struct btd_adapter *adapter,
    273 							bdaddr_t *bdaddr);
    274