우분투에서 cli로 BT A2dp Sink 쓰기 (hcitool, bluetoothctl, sdptool, rfkill, l2ping)

출처 : https://cafe.naver.com/openiot/101

우분투에서 BT A2dp Sink 쓰기

sudo apt-get install --reinstall pulseaudio pulseaudio-utils pulseaudio-module-bluetooth

sudo pactl load-module module-bluetooth-discover

BT 작업을 하기전 BT카 켜있는지, 블러킹 상태는 아닌지 확인해본다.

$ sudo rfkill list

0: hci0: Bluetooth

Soft blocked: no

Hard blocked: no

혹시 블라킹되어있다면 아래 명령으로 풀어준다.

$ sudo rfkill unblock bluetooth

BT 설정하기

$ sudo hciconfig

hci0: Type: BR/EDR  Bus: USB

BD Address: 00:1A:7D:DA:71:11  ACL MTU: 310:10  SCO MTU: 64:8

UP RUNNING PSCAN 

RX bytes:30380 acl:10 sco:0 events:209 errors:0

TX bytes:5521 acl:9 sco:0 commands:73 errors:0

BT 장치를 켜준다.

$ sudo hciconfig hci0 up

내 장치가 검색 가능하도록 만들기

$ sudo hciconfig -a hci0 piscan

스캔하기

$ hcitool scan

Scanning ...

0C:1C:20:00:03:7F MINI0004

0C:1C:20:FF:F5:A9 0069

0C:1C:20:FF:F3:73 0186

0C:1C:20:16:F1:84 MINI0573

0C:1C:20:00:00:9F 0080.

80:35:C1:5A:58:8B n/a

CC:4B:73:27:4E:77 jake.jeon

장치의 프로파일/서비스 확인하기 sdptool (SDP 스캔하기)

$ sdptool browse 0C:1C:20:00:03:7F

Browsing 0C:1C:20:00:03:7F ...

Service RecHandle: 0x10000

Service Class ID List:

  "Generic Attribute" (0x1801)

Protocol Descriptor List:

  "L2CAP" (0x0100)

    PSM: 31

  "ATT" (0x0007)

    uint16: 0x0001

    uint16: 0x0005

Service RecHandle: 0x10001

Service Class ID List:

  "Generic Access" (0x1800)

Protocol Descriptor List:

  "L2CAP" (0x0100)

    PSM: 31

  "ATT" (0x0007)

    uint16: 0x0014

    uint16: 0x001e

Service Name: AV Remote Control Target

Service RecHandle: 0x10002

Service Class ID List:

  "AV Remote Target" (0x110c)

Protocol Descriptor List:

  "L2CAP" (0x0100)

    PSM: 23

  "AVCTP" (0x0017)

    uint16: 0x0102

Profile Descriptor List:

  "AV Remote" (0x110e)

    Version: 0x0103

Service Name: Advanced Audio

Service RecHandle: 0x10003

Service Class ID List:

  "Audio Source" (0x110a)

Protocol Descriptor List:

  "L2CAP" (0x0100)

    PSM: 25

  "AVDTP" (0x0019)

    uint16: 0x0102

Profile Descriptor List:

  "Advanced Audio" (0x110d)

    Version: 0x0102

Service Name: Advanced Audio Sink

Service RecHandle: 0x10004

Service Class ID List:

  "Audio Sink" (0x110b)

Protocol Descriptor List:

  "L2CAP" (0x0100)

    PSM: 25

  "AVDTP" (0x0019)

    uint16: 0x0102

Profile Descriptor List:

  "Advanced Audio" (0x110d)

    Version: 0x0102

Service RecHandle: 0x10005

Service Class ID List:

  "AV Remote" (0x110e)

Protocol Descriptor List:

  "L2CAP" (0x0100)

    PSM: 23

  "AVCTP" (0x0017)

    uint16: 0x0102

Profile Descriptor List:

  "AV Remote" (0x110e)

    Version: 0x0103

Service Name: SMS/MMS

Service RecHandle: 0x10007

Service Class ID List:

  "Message Access - MAS" (0x1132)

Protocol Descriptor List:

  "L2CAP" (0x0100)

  "RFCOMM" (0x0003)

    Channel: 2

  "OBEX" (0x0008)

Profile Descriptor List:

  "Message Access" (0x1134)

    Version: 0x0101

Service Name: BluetoothChat

Service RecHandle: 0x10008

Service Class ID List:

  UUID 128: 220da3b2-41f5-11e7-a919-92ebcb67fe33

Protocol Descriptor List:

  "L2CAP" (0x0100)

  "RFCOMM" (0x0003)

    Channel: 3

bluetoothctl 로 조작해보기 블루투스 쉘에 진입

$ bluetoothctl

[NEW] Controller 00:1A:7D:DA:71:11 lionelj-Desktop [default]

[NEW] Device 0C:1C:20:16:F1:84 MINI0573

[NEW] Device F8:E6:1A:EA:8F:A8 Galaxy S8

[NEW] Device 0C:1C:20:FF:F1:75 MINI1188

[bluetooth]# 

BT 제어장치의 정보를 보기

[bluetooth]# show

Controller 00:1A:7D:DA:71:11

Name: lionelj-Desktop

Alias: lionelj-Desktop

Class: 0x1c0104

Powered: yes

Discoverable: yes

Pairable: yes

UUID: Generic Attribute Profile (00001801-0000-1000-8000-00805f9b34fb)

UUID: A/V Remote Control        (0000110e-0000-1000-8000-00805f9b34fb)

UUID: OBEX File Transfer        (00001106-0000-1000-8000-00805f9b34fb)

UUID: Generic Access Profile    (00001800-0000-1000-8000-00805f9b34fb)

UUID: OBEX Object Push          (00001105-0000-1000-8000-00805f9b34fb)

UUID: PnP Information           (00001200-0000-1000-8000-00805f9b34fb)

UUID: A/V Remote Control Target (0000110c-0000-1000-8000-00805f9b34fb)

UUID: IrMC Sync                 (00001104-0000-1000-8000-00805f9b34fb)

UUID: Audio Sink                (0000110b-0000-1000-8000-00805f9b34fb)

UUID: Audio Source              (0000110a-0000-1000-8000-00805f9b34fb)

UUID: Vendor specific           (00005005-0000-1000-8000-0002ee000001)

UUID: Message Notification Se.. (00001133-0000-1000-8000-00805f9b34fb)

UUID: Phonebook Access Server   (0000112f-0000-1000-8000-00805f9b34fb)

UUID: Message Access Server     (00001132-0000-1000-8000-00805f9b34fb)

Modalias: usb:v1D6Bp0246d0525

Discovering: no

다른장치와 페어링 하기위해 기본 에이전트로 등록하기

[bluetooth]# agent on

Agent registered

주변의 다른 장치 검색하기

[bluetooth]# scan on

Discovery started

[CHG] Controller 00:1A:7D:DA:71:11 Discovering: yes

[NEW] Device 8C:85:90:55:FE:02 8C-85-90-55-FE-02

[NEW] Device F0:18:98:55:CE:BA F0-18-98-55-CE-BA

[NEW] Device 8C:85:90:BB:ED:17 8C-85-90-BB-ED-17

[NEW] Device 57:7C:3A:AB:84:32 57-7C-3A-AB-84-32

[NEW] Device 70:8A:1B:E7:F3:B9 70-8A-1B-E7-F3-B9

[NEW] Device 5C:87:53:F4:93:DC 5C-87-53-F4-93-DC

[NEW] Device 7B:9E:36:C3:BE:BB 7B-9E-36-C3-BE-BB

[NEW] Device 50:FA:17:0A:33:92 50-FA-17-0A-33-92

[NEW] Device 0C:1C:20:FF:F3:73 0186

[NEW] Device 77:36:8C:CF:81:94 77-36-8C-CF-81-94

[NEW] Device 52:3B:31:81:60:C3 52-3B-31-81-60-C3

[NEW] Device 42:22:8A:93:DB:CE 42-22-8A-93-DB-CE

[NEW] Device 6A:DD:11:52:74:24 6A-DD-11-52-74-24

[NEW] Device 0C:1C:20:00:00:9F 0080

[NEW] Device 7D:5D:FB:43:FF:58 7D-5D-FB-43-FF-58

[CHG] Device 70:8A:1B:E7:F3:B9 RSSI: -78

[NEW] Device 14:20:5E:05:13:29 14-20-5E-05-13-29

[NEW] Device 42:99:92:1C:C9:09 42-99-92-1C-C9-09

[NEW] Device 7E:1C:1E:2B:86:2F 7E-1C-1E-2B-86-2F

[NEW] Device 48:1A:9F:0D:56:38 48-1A-9F-0D-56-38

[CHG] Device 5C:66:8D:C1:BC:F6 RSSI: -82

[NEW] Device 40:0E:B7:97:81:BB 40-0E-B7-97-81-BB

[NEW] Device E9:C7:A9:D1:EF:A2 WeZON Beacon

[NEW] Device DC:A9:04:75:65:F2 DC-A9-04-75-65-F2

[CHG] Device 0C:1C:20:FF:F3:73 RSSI: -74

[CHG] Device 0C:1C:20:FF:F3:73 Class: 0x2c0414

[CHG] Device 8C:85:90:BB:ED:17 RSSI is nil

[CHG] Device F0:18:98:55:CE:BA RSSI is nil

[CHG] Device 8C:85:90:55:FE:02 RSSI is nil

막 줄줄줄 나옴.

너무 많으니까 일단 스캔 끄기

[bluetooth]# scan off

Discovery stopped

[CHG] Controller 00:1A:7D:DA:71:11 Discovering: no

다른 장치에서 검색 가능하게 하기

[bluetooth]# discoverable on

Changing discoverable on succeeded

페어링 하기

이렇게 하면 된다는데 난 왜 안됨??

[bluetooth]# pair 11:22:33:44:55:77

Attempting to pair with 0C:1C:20:00:03:7F

Failed to pair: org.bluez.Error.AuthenticationCanceled

계속 반복하니 됨

[bluetooth]# pair 0C:1C:20:00:03:7F

Attempting to pair with 0C:1C:20:00:03:7F

[CHG] Device 0C:1C:20:00:03:7F Connected: yes

[MINI0004]# pair 0C:1C:20:00:03:7F

Attempting to pair with 0C:1C:20:00:03:7F

Failed to pair: org.bluez.Error.InProgress

Request confirmation

[agent] Confirm passkey 218316 (yes/no): yes  <==기기에서도 확인해줘야 함.

[CHG] Device 0C:1C:20:00:03:7F Modalias: bluetooth:v000Fp1200d1436

[CHG] Device 0C:1C:20:00:03:7F UUIDs: 0000110a-0000-1000-8000-00805f9b34fb

[CHG] Device 0C:1C:20:00:03:7F UUIDs: 0000110b-0000-1000-8000-00805f9b34fb

[CHG] Device 0C:1C:20:00:03:7F UUIDs: 0000110c-0000-1000-8000-00805f9b34fb

[CHG] Device 0C:1C:20:00:03:7F UUIDs: 0000110e-0000-1000-8000-00805f9b34fb

[CHG] Device 0C:1C:20:00:03:7F UUIDs: 00001132-0000-1000-8000-00805f9b34fb

[CHG] Device 0C:1C:20:00:03:7F UUIDs: 00001200-0000-1000-8000-00805f9b34fb

[CHG] Device 0C:1C:20:00:03:7F UUIDs: 00001800-0000-1000-8000-00805f9b34fb

[CHG] Device 0C:1C:20:00:03:7F UUIDs: 00001801-0000-1000-8000-00805f9b34fb

[CHG] Device 0C:1C:20:00:03:7F Paired: yes

Pairing successful

[CHG] Device 0C:1C:20:00:03:7F Connected: no

장치와 연결하기. - 연결 기능은 해당 서비스/프로파일이 양쪽 기기에 설치되어 있어야 한다.

[bluetooth]# connect 0C:1C:20:00:03:7F

Attempting to connect to 0C:1C:20:00:03:7F

[CHG] Device 0C:1C:20:00:03:7F Connected: yes

Connection successful

[MINI0004]# 

상대 장치의 정보 확인하기

[bluetooth]# info 0C:1C:20:00:03:7F

Device 0C:1C:20:00:03:7F

Name: MINI0004

Alias: MINI0004

Class: 0x2c0414

Icon: audio-card

Paired: yes

Trusted: no

Blocked: no

Connected: no

LegacyPairing: no

UUID: Audio Source              (0000110a-0000-1000-8000-00805f9b34fb)

UUID: Audio Sink                (0000110b-0000-1000-8000-00805f9b34fb)

UUID: A/V Remote Control Target (0000110c-0000-1000-8000-00805f9b34fb)

UUID: A/V Remote Control        (0000110e-0000-1000-8000-00805f9b34fb)

UUID: Message Access Server     (00001132-0000-1000-8000-00805f9b34fb)

UUID: PnP Information           (00001200-0000-1000-8000-00805f9b34fb)

UUID: Generic Access Profile    (00001800-0000-1000-8000-00805f9b34fb)

UUID: Generic Attribute Profile (00001801-0000-1000-8000-00805f9b34fb)

Modalias: bluetooth:v000Fp1200d1436

다음처럼 접속해서 info 해도 나옴.

[bluetooth]#  connect 0C:1C:20:00:03:7F

Attempting to connect to 0C:1C:20:00:03:7F

[CHG] Device 0C:1C:20:00:03:7F Connected: yes

Connection successful

[MINI0004]# info

Device 0C:1C:20:00:03:7F

Name: MINI0004

Alias: MINI0004

Class: 0x2c0414

Icon: audio-card

Paired: yes

Trusted: no

Blocked: no

Connected: yes

LegacyPairing: no

UUID: Audio Source              (0000110a-0000-1000-8000-00805f9b34fb)

UUID: Audio Sink                (0000110b-0000-1000-8000-00805f9b34fb)

UUID: A/V Remote Control Target (0000110c-0000-1000-8000-00805f9b34fb)

UUID: A/V Remote Control        (0000110e-0000-1000-8000-00805f9b34fb)

UUID: Message Access Server     (00001132-0000-1000-8000-00805f9b34fb)

UUID: PnP Information           (00001200-0000-1000-8000-00805f9b34fb)

UUID: Generic Access Profile    (00001800-0000-1000-8000-00805f9b34fb)

UUID: Generic Attribute Profile (00001801-0000-1000-8000-00805f9b34fb)

Modalias: bluetooth:v000Fp1200d1436

[CHG] Device 0C:1C:20:00:03:7F Connected: no

연결 해제하기

[bluetooth]# disconnect 0C:1C:20:00:03:7F

Attempting to disconnect from 0C:1C:20:00:03:7F

Successful disconnected

자기 자신 서비스 보기

이것을 하려면 조금 복잡한 일을 해야한다.

$ vi /lib/systemd/system/bluetooth.service 파일의 아래 --compat 를 주면 local 의 서비스를 확인 할 수 있다.

[Service]

Type=dbus

BusName=org.bluez

ExecStart=/usr/lib/bluetooth/bluetoothd --compat

$ sudo systemctl daemon-reload

$ sudo systemctl restart bluetooth

$ sudo chmod 777 /var/run/sdp

$ sudo sdptool browse local

Browsing FF:FF:FF:00:00:00 ...

Service RecHandle: 0x10000

Service Class ID List:

  "PnP Information" (0x1200)

Profile Descriptor List:

  "PnP Information" (0x1200)

    Version: 0x0103

Browsing FF:FF:FF:00:00:00 ...

Service Search failed: Invalid argument

Service Name: Generic Access Profile

Service Provider: BlueZ

Service RecHandle: 0x10001

Service Class ID List:

  "Generic Access" (0x1800)

Protocol Descriptor List:

  "L2CAP" (0x0100)

    PSM: 31

  "ATT" (0x0007)

    uint16: 0x0001

    uint16: 0x0005

Service Name: Generic Attribute Profile

Service Provider: BlueZ

Service RecHandle: 0x10002

Service Class ID List:

  "Generic Attribute" (0x1801)

Protocol Descriptor List:

  "L2CAP" (0x0100)

    PSM: 31

  "ATT" (0x0007)

    uint16: 0x0006

    uint16: 0x0009

Service Name: AVRCP CT

Service RecHandle: 0x10003

Service Class ID List:

  "AV Remote" (0x110e)

  "AV Remote Controller" (0x110f)

Protocol Descriptor List:

  "L2CAP" (0x0100)

    PSM: 23

  "AVCTP" (0x0017)

    uint16: 0x0103

Profile Descriptor List:

  "AV Remote" (0x110e)

    Version: 0x0106

Service Name: AVRCP TG

Service RecHandle: 0x10004

Service Class ID List:

  "AV Remote Target" (0x110c)

Protocol Descriptor List:

  "L2CAP" (0x0100)

    PSM: 23

  "AVCTP" (0x0017)

    uint16: 0x0103

Profile Descriptor List:

  "AV Remote" (0x110e)

    Version: 0x0105

Service Name: Message Notification

Service RecHandle: 0x10005

Service Class ID List:

  "Message Access - MNS" (0x1133)

Protocol Descriptor List:

  "L2CAP" (0x0100)

  "RFCOMM" (0x0003)

    Channel: 17

  "OBEX" (0x0008)

Profile Descriptor List:

  "Message Access" (0x1134)

    Version: 0x0102

Browsing FF:FF:FF:00:00:00 ...

Service Search failed: Invalid argument

Service Name: Message Access

Service RecHandle: 0x10006

Service Class ID List:

  "Message Access - MAS" (0x1132)

Protocol Descriptor List:

  "L2CAP" (0x0100)

  "RFCOMM" (0x0003)

    Channel: 16

  "OBEX" (0x0008)

Profile Descriptor List:

  "Message Access" (0x1134)

    Version: 0x0100

Browsing FF:FF:FF:00:00:00 ...

Service Search failed: Invalid argument

Service Name: Phone Book Access

Service RecHandle: 0x10007

Service Class ID List:

  "Phonebook Access - PSE" (0x112f)

Protocol Descriptor List:

  "L2CAP" (0x0100)

  "RFCOMM" (0x0003)

    Channel: 15

  "OBEX" (0x0008)

Profile Descriptor List:

  "Phonebook Access" (0x1130)

    Version: 0x0101

Browsing FF:FF:FF:00:00:00 ...

Service Search failed: Invalid argument

Service Name: Synchronization

Service RecHandle: 0x10008

Service Class ID List:

  "IrMC Sync" (0x1104)

Protocol Descriptor List:

  "L2CAP" (0x0100)

  "RFCOMM" (0x0003)

    Channel: 14

  "OBEX" (0x0008)

Profile Descriptor List:

  "IrMC Sync" (0x1104)

    Version: 0x0100

Service Name: File Transfer

Service RecHandle: 0x10009

Service Class ID List:

  "OBEX File Transfer" (0x1106)

Protocol Descriptor List:

  "L2CAP" (0x0100)

  "RFCOMM" (0x0003)

    Channel: 10

  "OBEX" (0x0008)

Profile Descriptor List:

  "OBEX File Transfer" (0x1106)

    Version: 0x0102

Browsing FF:FF:FF:00:00:00 ...

Service Search failed: Invalid argument

Service Name: Object Push

Service RecHandle: 0x1000a

Service Class ID List:

  "OBEX Object Push" (0x1105)

Protocol Descriptor List:

  "L2CAP" (0x0100)

  "RFCOMM" (0x0003)

    Channel: 9

  "OBEX" (0x0008)

Profile Descriptor List:

  "OBEX Object Push" (0x1105)

    Version: 0x0102

Browsing FF:FF:FF:00:00:00 ...

Service Search failed: No data available

Service Name: Nokia OBEX PC Suite Services

Service RecHandle: 0x1000b

Service Class ID List:

  UUID 128: 00005005-0000-1000-8000-0002ee000001

Protocol Descriptor List:

  "L2CAP" (0x0100)

  "RFCOMM" (0x0003)

    Channel: 24

  "OBEX" (0x0008)

Profile Descriptor List:

  "" (0x00005005-0000-1000-8000-0002ee000001)

    Version: 0x0100

Service Name: Audio Source

Service RecHandle: 0x1000c

Service Class ID List:

  "Audio Source" (0x110a)

Protocol Descriptor List:

  "L2CAP" (0x0100)

    PSM: 25

  "AVDTP" (0x0019)

    uint16: 0x0103

Profile Descriptor List:

  "Advanced Audio" (0x110d)

    Version: 0x0103

Service Name: Audio Sink

Service RecHandle: 0x1000d

Service Class ID List:

  "Audio Sink" (0x110b)

Protocol Descriptor List:

  "L2CAP" (0x0100)

    PSM: 25

  "AVDTP" (0x0019)

    uint16: 0x0103

Profile Descriptor List:

  "Advanced Audio" (0x110d)

    Version: 0x0103

Service Name: Headset Voice gateway

Service RecHandle: 0x1000e

Service Class ID List:

  "Headset Audio Gateway" (0x1112)

  "Generic Audio" (0x1203)

Protocol Descriptor List:

  "L2CAP" (0x0100)

  "RFCOMM" (0x0003)

    Channel: 12

Profile Descriptor List:

  "Headset" (0x1108)

    Version: 0x0102

BT 테스트 스크립트

이걸 깔면

sudo apt-get install bluez-tools bluez-test-scripts

아래 디렉토리에 테스트 스크립트가 생성된다.

/usr/share/doc/bluez-tests/examples

$ ls

bluezutils.py             pbap-client.gz      test-adapter          test-manager

dbusdef.py                sap_client.py.gz    test-alert.gz         test-nap

example-advertisement.gz  service-did.xml     test-cyclingspeed.gz  test-network

example-gatt-client.gz    service-ftp.xml     test-device.gz        test-profile

example-gatt-server.gz    service-opp.xml     test-discovery        test-proximity

ftp-client.gz             service-record.dtd  test-gatt-profile     test-sap-server

list-devices              service-spp.xml     test-health-sink      test-thermometer

map-client.gz             simple-agent.gz     test-health.gz

monitor-bluetooth         simple-endpoint.gz  test-heartrate

opp-client                simple-player.gz    test-hfp.gz

SPP 서비스 추가 등록하고 rfcomm 연결을 대기

$ sudo sdptool add sp

Serial Port service registered

$sudo rfcomm listen hci0

Waiting for connection on channel 1

아래처럼 켜줌.

$ bluetoothctl   <== BT컨트롤

[NEW] Controller 00:1A:7D:DA:71:11 lionelj-Desktop [default]

[NEW] Device 0C:1C:20:16:F1:84 MINI0573

[NEW] Device F8:E6:1A:EA:8F:A8 Galaxy S8

[NEW] Device 0C:1C:20:FF:F1:75 MINI1188

[NEW] Device 0C:1C:20:00:03:7F MINI0004

[bluetooth]# agent on <== 에이전트 등록

Agent registered

[bluetooth]# discoverable on <== 찾을 수 있도록

Changing discoverable on succeeded

[CHG] Device 0C:1C:20:00:03:7F Connected: yes

[CHG] Device 0C:1C:20:00:03:7F Connected: no

[bluetooth]# default-agent <== default-agent 으로 등록

Default agent request successful

[CHG] Device F8:E6:1A:EA:8F:A8 Connected: yes

Request confirmation

[agent] Confirm passkey 095343 (yes/no): yes <== 접속시도할때 PIN code 확인하는게 나옴.

[CHG] Device F8:E6:1A:EA:8F:A8 Connected: no

접속이 성공하면 아까 띄워놨던 rfcomm0 에서 읽을 수 있다.

$ sudo rfcomm listen hci0

Waiting for connection on channel 1

Connection from 0C:1C:20:00:03:7F to /dev/rfcomm0

Press CTRL-C for hangup

$ sudo cat /dev/rfcomm0

hello

미니컴으로 열어서 양방향 채팅이 가능하다.

BT mac으로 ping 날리기

$ sudo l2ping 0C:1C:20:00:03:7F

[sudo] password for lionelj: 

Ping: 0C:1C:20:00:03:7F from 00:1A:7D:DA:71:11 (data size 44) ...

0 bytes from 0C:1C:20:00:03:7F id 0 time 354.49ms

0 bytes from 0C:1C:20:00:03:7F id 1 time 20.52ms

0 bytes from 0C:1C:20:00:03:7F id 2 time 22.59ms

0 bytes from 0C:1C:20:00:03:7F id 3 time 22.48ms

0 bytes from 0C:1C:20:00:03:7F id 4 time 24.68ms

^C5 sent, 5 received, 0% loss

rfcomm 으로 연결하기

$ sudo rfcomm connect <bluetooth host device> <Target bluetooth device MAC> <channel>

hci0 로 채널 2에 연결하려면

sudo rfcomm connect hci0 83:23:26:15:54:46 2

hfp MIC 녹음 해보려고 했는데 안되네

sudo arecord -f S16_LE -D bluealsa:HCI=hci,DEV=00:1A:7D:DA:71:11,PROFILE=sco record.wav