建立一个PC蓝牙服务器为Android [英] Setting up a pc bluetooth server for android
问题描述
可能重复：
<一href="http://stackoverflow.com/questions/3397071/service-discovery-failed-exception-using-bluetooth-on-android">Service发现在Android
好吧，我已经读了很多话题，过去两三天并没有什么似乎已经问过这个。
Alright, I've been reading a lot of topics the past two or three days and nothing seems to have asked this.
我写一个PC端服务器，我的Andriod设备，这是用于交换一些信息，和一般的调试。最后，我将连接到一个SPP装置来控制微控制器。
I am writing a PC side server for my andriod device, this is for exchanging some information and general debugging. Eventually I will be connecting to a SPP device to control a microcontroller.
我已成功使用以下（Android的PC机）连接到RFCOMM我的Android设备和我的PC之间的信道11和交换数据。
I have managed, using the following (Android to pc) to connect to rfcomm channel 11 and exchange data between my android device and my pc.
方法M = device.getClass（）实现getMethod（createRfcommSocket，新的等级[] {} int.class）。 TMP =（的BluetoothSocket）m.invoke（设备，Integer.valueOf（11））;
Method m = device.getClass().getMethod("createRfcommSocket", new Class[] { int.class }); tmp = (BluetoothSocket) m.invoke(device, Integer.valueOf(11));
我已经尝试了createRfcommSocketToServiceRecord（UUID）方法，完全没有运气。
I have attempted the createRfcommSocketToServiceRecord(UUID) method, with absolutely no luck.
有关在PC端，我一直在使用C配合bluez栈对于Linux。我有以下的code注册该服务，并打开一个服务器套接字：
For the PC side, I have been using the C Bluez stack for linux. I have the following code which registers the service and opens a server socket:
int main(int argc, char **argv)
{
struct sockaddr_rc loc_addr = { 0 }, rem_addr = { 0 };
char buf[1024] = { 0 };
char str[1024] = { 0 };
int s, client, bytes_read;
sdp_session_t *session;
socklen_t opt = sizeof(rem_addr);
session = register_service();
s = socket(AF_BLUETOOTH, SOCK_STREAM, BTPROTO_RFCOMM);
loc_addr.rc_family = AF_BLUETOOTH;
loc_addr.rc_bdaddr = *BDADDR_ANY;
loc_addr.rc_channel = (uint8_t) 11;
bind(s, (struct sockaddr *)&loc_addr, sizeof(loc_addr));
listen(s, 1);
client = accept(s, (struct sockaddr *)&rem_addr, &opt);
ba2str( &rem_addr.rc_bdaddr, buf );
fprintf(stderr, "accepted connection from %s\n", buf);
memset(buf, 0, sizeof(buf));
bytes_read = read(client, buf, sizeof(buf));
if( bytes_read > 0 ) {
printf("received [%s]\n", buf);
}
sprintf(str,"to Android.");
printf("sent [%s]\n",str);
write(client, str, sizeof(str));
close(client);
close(s);
sdp_close( session );
return 0;
}
sdp_session_t *register_service()
{
uint32_t svc_uuid_int[] = { 0x00000000,0x00000000,0x00000000,0x00000000 };
uint8_t rfcomm_channel = 11;
const char *service_name = "Remote Host";
const char *service_dsc = "What the remote should be connecting to.";
const char *service_prov = "Your mother";
uuid_t root_uuid, l2cap_uuid, rfcomm_uuid, svc_uuid;
sdp_list_t *l2cap_list = 0,
*rfcomm_list = 0,
*root_list = 0,
*proto_list = 0,
*access_proto_list = 0;
sdp_data_t *channel = 0, *psm = 0;
sdp_record_t *record = sdp_record_alloc();
// set the general service ID
sdp_uuid128_create( &svc_uuid, &svc_uuid_int );
sdp_set_service_id( record, svc_uuid );
// make the service record publicly browsable
sdp_uuid16_create(&root_uuid, PUBLIC_BROWSE_GROUP);
root_list = sdp_list_append(0, &root_uuid);
sdp_set_browse_groups( record, root_list );
// set l2cap information
sdp_uuid16_create(&l2cap_uuid, L2CAP_UUID);
l2cap_list = sdp_list_append( 0, &l2cap_uuid );
proto_list = sdp_list_append( 0, l2cap_list );
// set rfcomm information
sdp_uuid16_create(&rfcomm_uuid, RFCOMM_UUID);
channel = sdp_data_alloc(SDP_UINT8, &rfcomm_channel);
rfcomm_list = sdp_list_append( 0, &rfcomm_uuid );
sdp_list_append( rfcomm_list, channel );
sdp_list_append( proto_list, rfcomm_list );
// attach protocol information to service record
access_proto_list = sdp_list_append( 0, proto_list );
sdp_set_access_protos( record, access_proto_list );
// set the name, provider, and description
sdp_set_info_attr(record, service_name, service_prov, service_dsc);
int err = 0;
sdp_session_t *session = 0;
// connect to the local SDP server, register the service record, and
// disconnect
session = sdp_connect( BDADDR_ANY, BDADDR_LOCAL, SDP_RETRY_IF_BUSY );
err = sdp_record_register(session, record, 0);
// cleanup
//sdp_data_free( channel );
sdp_list_free( l2cap_list, 0 );
sdp_list_free( rfcomm_list, 0 );
sdp_list_free( root_list, 0 );
sdp_list_free( access_proto_list, 0 );
return session;
}和另一块code，除了sdptool可以浏览本地可verifty该服务记录在PC上运行的：
And another piece of code, in addition to 'sdptool browse local' which can verifty that the service record is running on the pc:
int main(int argc, char **argv)
{
uuid_t svc_uuid;
uint32_t svc_uuid_int[] = { 0x00000000,0x00000000,0x00000000,0x00000000 };
int err;
bdaddr_t target;
sdp_list_t *response_list = NULL, *search_list, *attrid_list;
sdp_session_t *session = 0;
str2ba( "01:23:45:67:89:AB", &target );
// connect to the SDP server running on the remote machine
session = sdp_connect( BDADDR_ANY, BDADDR_LOCAL, SDP_RETRY_IF_BUSY );
// specify the UUID of the application we're searching for
sdp_uuid128_create( &svc_uuid, &svc_uuid_int );
search_list = sdp_list_append( NULL, &svc_uuid );
// specify that we want a list of all the matching applications' attributes
uint32_t range = 0x0000ffff;
attrid_list = sdp_list_append( NULL, &range );
// get a list of service records that have UUID 0xabcd
err = sdp_service_search_attr_req( session, search_list, \
SDP_ATTR_REQ_RANGE, attrid_list, &response_list);
sdp_list_t *r = response_list;
// go through each of the service records
for (; r; r = r->next ) {
sdp_record_t *rec = (sdp_record_t*) r->data;
sdp_list_t *proto_list;
// get a list of the protocol sequences
if( sdp_get_access_protos( rec, &proto_list ) == 0 ) {
sdp_list_t *p = proto_list;
// go through each protocol sequence
for( ; p ; p = p->next ) {
sdp_list_t *pds = (sdp_list_t*)p->data;
// go through each protocol list of the protocol sequence
for( ; pds ; pds = pds->next ) {
// check the protocol attributes
sdp_data_t *d = (sdp_data_t*)pds->data;
int proto = 0;
for( ; d; d = d->next ) {
switch( d->dtd ) {
case SDP_UUID16:
case SDP_UUID32:
case SDP_UUID128:
proto = sdp_uuid_to_proto( &d->val.uuid );
break;
case SDP_UINT8:
if( proto == RFCOMM_UUID ) {
printf("rfcomm channel: %d\n",d->val.int8);
}
break;
}
}
}
sdp_list_free( (sdp_list_t*)p->data, 0 );
}
sdp_list_free( proto_list, 0 );
}
printf("found service record 0x%x\n", rec->handle);
sdp_record_free( rec );
}
sdp_close(session);
}
Output:
$ ./search
rfcomm channel: 11
found service record 0x10008
sdptool:
Service Name: Remote Host
Service Description: What the remote should be connecting to.
Service Provider: Your mother
Service RecHandle: 0x10008
Protocol Descriptor List:
"L2CAP" (0x0100)
"RFCOMM" (0x0003)
Channel: 11
而对于logcat中我得到这样的：
And for logcat I'm getting this:
07-22 15:57:06.087: ERROR/BTLD(215): ****************search UUID = 0000***********
07-22 15:57:06.087: INFO//system/bin/btld(209): btapp_dm_GetRemoteServiceChannel()
07-22 15:57:06.087: INFO//system/bin/btld(209): ##### USerial_Ioctl: BT_Wake, 0x8003 ####
07-22 15:57:06.097: INFO/ActivityManager(88): Displayed activity com.example.socktest/.socktest: 79 ms (total 79 ms)
07-22 15:57:06.697: INFO//system/bin/btld(209): ##### USerial_Ioctl: BT_Sleep, 0x8004 ####
07-22 15:57:07.517: WARN/BTLD(215): ccb timer ticks: 2147483648
07-22 15:57:07.517: INFO//system/bin/btld(209): ##### USerial_Ioctl: BT_Wake, 0x8003 ####
07-22 15:57:07.547: WARN/BTLD(215): info:x10
07-22 15:57:07.547: INFO/BTL-IFS(215): send_ctrl_msg: [BTL_IFS CTRL] send BTLIF_DTUN_SIGNAL_EVT (CTRL) 10 pbytes (hdl 14)
07-22 15:57:07.547: DEBUG/DTUN_HCID_BZ4(253): dtun_dm_sig_link_up()
07-22 15:57:07.547: INFO/DTUN_HCID_BZ4(253): dtun_dm_sig_link_up: dummy_handle = 342
07-22 15:57:07.547: DEBUG/ADAPTER(253): adapter_get_device(00:02:72:AB:7C:EE)
07-22 15:57:07.547: ERROR/BluetoothEventLoop.cpp(88): pollData[0] is revented, check next one
07-22 15:57:07.547: ERROR/BluetoothEventLoop.cpp(88): event_filter: Received signal org.bluez.Device:PropertyChanged from /org/bluez/253/hci0/dev_00_02_72_AB_7C_EE
07-22 15:57:07.777: WARN/BTLD(215): process_service_search_attr_rsp
07-22 15:57:07.787: INFO/BTL-IFS(215): send_ctrl_msg: [BTL_IFS CTRL] send BTLIF_DTUN_SIGNAL_EVT (CTRL) 13 pbytes (hdl 14)
07-22 15:57:07.787: INFO/DTUN_HCID_BZ4(253): dtun_dm_sig_rmt_service_channel: success=0, service=00000000
07-22 15:57:07.787: ERROR/DTUN_HCID_BZ4(253): discovery unsuccessful!
07-22 15:57:08.497: INFO//system/bin/btld(209): ##### USerial_Ioctl: BT_Sleep, 0x8004 ####
07-22 15:57:09.507: INFO//system/bin/btld(209): ##### USerial_Ioctl: BT_Wake, 0x8003 ####
07-22 15:57:09.597: INFO/BTL-IFS(215): send_ctrl_msg: [BTL_IFS CTRL] send BTLIF_DTUN_SIGNAL_EVT (CTRL) 11 pbytes (hdl 14)
07-22 15:57:09.597: DEBUG/DTUN_HCID_BZ4(253): dtun_dm_sig_link_down()
07-22 15:57:09.597: INFO/DTUN_HCID_BZ4(253): dtun_dm_sig_link_down device = 0xf7a0 handle = 342 reason = 22
07-22 15:57:09.597: ERROR/BluetoothEventLoop.cpp(88): pollData[0] is revented, check next one
07-22 15:57:09.597: ERROR/BluetoothEventLoop.cpp(88): event_filter: Received signal org.bluez.Device:PropertyChanged from /org/bluez/253/hci0/dev_00_02_72_AB_7C_EE
07-22 15:57:09.597: DEBUG/BluetoothA2dpService(88): Received intent Intent { act=android.bluetooth.device.action.ACL_DISCONNECTED (has extras) }
07-22 15:57:10.107: INFO//system/bin/btld(209): ##### USerial_Ioctl: BT_Sleep, 0x8004 ####
07-22 15:57:12.107: DEBUG/BluetoothService(88): Cleaning up failed UUID channel lookup: 00:02:72:AB:7C:EE 00000000-0000-0000-0000-000000000000
07-22 15:57:12.107: ERROR/Socket Test(5234): connect() failed
07-22 15:57:12.107: DEBUG/ASOCKWRP(5234): asocket_abort [31,32,33]
07-22 15:57:12.107: INFO/BLZ20_WRAPPER(5234): blz20_wrp_shutdown: s 31, how 2
07-22 15:57:12.107: DEBUG/BLZ20_WRAPPER(5234): blz20_wrp_shutdown: fd (-1:31), bta -1, rc 0, wflags 0x0
07-22 15:57:12.107: INFO/BLZ20_WRAPPER(5234): __close_prot_rfcomm: fd 31
07-22 15:57:12.107: INFO/BLZ20_WRAPPER(5234): __close_prot_rfcomm: bind not completed on this socket
07-22 15:57:12.107: DEBUG/BLZ20_WRAPPER(5234): btlif_signal_event: fd (-1:31), bta -1, rc 0, wflags 0x0
07-22 15:57:12.107: DEBUG/BLZ20_WRAPPER(5234): btlif_signal_event: event BTLIF_BTS_EVT_ABORT matched
07-22 15:57:12.107: DEBUG/BTL_IFC_WRP(5234): wrp_close_s_only: wrp_close_s_only [31] (31:-1) []
07-22 15:57:12.107: DEBUG/BTL_IFC_WRP(5234): wrp_close_s_only: data socket closed
07-22 15:57:12.107: DEBUG/BTL_IFC_WRP(5234): wsactive_del: delete wsock 31 from active list [ad3e1494]
07-22 15:57:12.107: DEBUG/BTL_IFC_WRP(5234): wrp_close_s_only: wsock fully closed, return to pool
07-22 15:57:12.107: DEBUG/BLZ20_WRAPPER(5234): btsk_free: success
07-22 15:57:12.107: DEBUG/BLZ20_WRAPPER(5234): blz20_wrp_write: wrote 1 bytes out of 1 on fd 33
07-22 15:57:12.107: DEBUG/ASOCKWRP(5234): asocket_destroy
07-22 15:57:12.107: DEBUG/ASOCKWRP(5234): asocket_abort [31,32,33]
07-22 15:57:12.107: INFO/BLZ20_WRAPPER(5234): blz20_wrp_shutdown: s 31, how 2
07-22 15:57:12.107: DEBUG/BLZ20_WRAPPER(5234): blz20_wrp_shutdown: btsk not found, normal close (31)
07-22 15:57:12.107: DEBUG/BLZ20_WRAPPER(5234): blz20_wrp_write: wrote 1 bytes out of 1 on fd 33
07-22 15:57:12.107: INFO/BLZ20_WRAPPER(5234): blz20_wrp_close: s 33
07-22 15:57:12.107: DEBUG/BLZ20_WRAPPER(5234): blz20_wrp_close: btsk not found, normal close (33)
07-22 15:57:12.107: INFO/BLZ20_WRAPPER(5234): blz20_wrp_close: s 32
07-22 15:57:12.107: DEBUG/BLZ20_WRAPPER(5234): blz20_wrp_close: btsk not found, normal close (32)
07-22 15:57:12.107: INFO/BLZ20_WRAPPER(5234): blz20_wrp_close: s 31
07-22 15:57:12.107: DEBUG/BLZ20_WRAPPER(5234): blz20_wrp_close: btsk not found, normal close (31)
07-22 15:57:12.157: DEBUG/Sensors(88): close_akm, fd=151
07-22 15:57:12.167: ERROR/CachedBluetoothDevice(477): onUuidChanged: Time since last connect14970690
07-22 15:57:12.237: DEBUG/Socket Test(5234): -On Stop-
抱歉轰炸你什么似乎是一个难以回答的问题，并大量阅读，但我一直在这个问题上一段时间，我已经尝试了很多不同的东西来得到这个工作的家伙。
Sorry for bombarding you guys with what seems like a difficult question and a lot to read, but I've been working on this problem for a while and I've tried a lot of different things to get this working.
让我再次重申，我可以得到它的工作，但不使用服务发现协议。我已经尝试了几种不同的UUID，并在两个不同的计算机上，虽然我只有我的HTC不可思议来测试。
Let me reiterate, I can get it to work, but not using service discovery protocol. I've tried a several different UUIDs and on two different computers, although I only have my HTC Incredible to test with.
我也听到了一些传言说，BT堆栈是不工作的宏达电Droid，但事实并非如此，至少，为电脑互动。
I've also heard some rumors that the BT stack wasn't working on the HTC Droid, but that isn't the case, at least, for PC interaction.
推荐答案
在SDP registeration code缺少类ID列表registeration。而且因为Android系统没有找到所提供的服务。
The SDP registeration code is missing Class ID List registeration. And because of that Android doesn't find the offered service.
如果您在register_service add（）函数跟随着code：
If you add in the register_service() function followin code:
// set the Service class ID
sdp_list_t service_class = {NULL, &svc_uuid};
sdp_set_service_classes( record, &service_class);
在设置常规服务ID行。 Android设备应该找到你的服务。
After set general service ID lines. The android device should find your service.
这曾与三星Galaxy S采用2.2固件。但不起作用摩托罗拉Milestone采用2.1-UPDATE1
This worked with Samsung Galaxy S with 2.2 firmware. But doesn't work with Motorola Milestone with 2.1-update1
这篇关于建立一个PC蓝牙服务器为Android的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
