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After issuing the "Push" command, the user is prompted to enter any stream metadata to be sent to the peer. If the "auto" value is chosen, the default metadata found in the BASE will be sent. Otherwise, the LTVs found in the BASE will be overwritten by the user input. If the stream is encrypted, the user is also prompted to enter the Broadcast Code for decrypting. If the "auto" value is chosen, a zero filled array will be provided over DBus. Below is a bluetoothctl log to exercise the "Push" command for an unencrypted stream: client/bluetoothctl [bluetooth]# [CHG] Controller 00:60:37:31:7E:3F Pairable: yes [bluetooth]# AdvertisementMonitor path registered [bluetooth]# scan on [bluetooth]# [NEW] Device 00:60:37:31:7E:3F 00-60-37-31-7E-3F [bluetooth]# connect 00:60:37:31:7E:3F Attempting to connect to 00:60:37:31:7E:3F [CHG] Device 00:60:37:31:7E:3F Connected: yes [00-60-37-31-7E-3F]# Connection successful [00-60-37-31-7E-3F]# [NEW] Device 15:19:44:63:76:7A 15-19-44-63-76-7A [00-60-37-31-7E-3F]# [NEW] Assistant /org/bluez/hci0/src_15_19_44_63_76_7A/dev_00_60_37_31_7E_3F/bis1 [00-60-37-31-7E-3F]# assistant.push /org/bluez/hci0/src_15_19_44_63_76_7A/dev_00_60_37_31_7E_3F/bis1 [Assistant] Enter Metadata (auto/value): 0x03 0x02 0x04 0x00 [00-60-37-31-7E-3F]# [CHG] Assistant /org/bluez/hci0/src_15_19_44_63_76_7A/dev_00_60_37_31_7E_3F/bis1 State: pending [00-60-37-31-7E-3F]# Assistant /org/bluez/hci0/src_15_19_44_63_76_7A/dev_00_60_37_31_7E_3F/bis1 pushed [00-60-37-31-7E-3F]# [CHG] Assistant /org/bluez/hci0/src_15_19_44_63_76_7A/dev_00_60_37_31_7E_3F/bis1 State: active The btmon log below shows the GATT write command sent by the Assistant and the GATT notification received from the peer: < ACL Data TX: Handle 0 flags 0x00 dlen 32 ATT: Write Command (0x52) len 27 Handle: 0x0040 Type: Broadcast Audio Scan Control Point (0x2bc7) Data[25]: 02017a766344191500c21a3702ffff01010000000403020400 Opcode: Add Source (0x02) Source_Address_Type: 1 Source_Address: 15:19:44:63:76:7A Source_Adv_SID: 0 Broadcast_ID: 0x371ac2 PA_Sync_State: Synchronize to PA - PAST not available PA_Interval: 0xffff Num_Subgroups: 1 Subgroup #0: BIS_Sync State: 0x00000001 Metadata: #0: len 0x03 type 0x02 Metadata: 04 00 > ACL Data RX: Handle 0 flags 0x01 dlen 6 ATT: Handle Multiple Value Notification (0x23) len 28 Length: 0x0018 Handle: 0x003a Type: Broadcast Receive State (0x2bc8) Data[24]: 01017a766344191500c21a37020001010000000403020400 Source_ID: 1 Source_Address_Type: 1 Source_Address: 15:19:44:63:76:7A Source_Adv_SID: 0 Broadcast_ID: 0x371ac2 PA_Sync_State: Synchronized to PA BIG_Encryption: Not encrypted Num_Subgroups: 1 Subgroup #0: BIS_Sync State: 0x00000001 Metadata: #0: len 0x03 type 0x02 Metadata: 04 00 The bluetoothctl log below shows the "Push" command flow for an encrypted stream: client/bluetoothctl [bluetooth]# [CHG] Controller 00:60:37:31:7E:3F Pairable: yes [bluetooth]# AdvertisementMonitor path registered [bluetooth]# scan on [bluetooth]# [NEW] Device 00:60:37:31:7E:3F 00-60-37-31-7E-3F [bluetooth]# connect 00:60:37:31:7E:3F Attempting to connect to 00:60:37:31:7E:3F [CHG] Device 00:60:37:31:7E:3F Connected: yes [00-60-37-31-7E-3F]# Connection successful [00-60-37-31-7E-3F]# [NEW] Device 05:1F:EE:F3:F8:7D 05-1F-EE-F3-F8-7D [00-60-37-31-7E-3F]# [NEW] Assistant /org/bluez/hci0/src_05_1F_EE_F3_F8_7D/dev_00_60_37_31_7E_3F/bis1 [00-60-37-31-7E-3F]# assistant.push /org/bluez/hci0/src_05_1F_EE_F3_F8_7D/dev_00_60_37_31_7E_3F/bis1 [Assistant] Enter Metadata (auto/value): 0x03 0x02 0x04 0x00 [Assistant] Enter Broadcast Code (auto/value): 0x01 0x02 0x68 0x05 0x53 0xf1 0x41 0x5a 0xa2 0x65 0xbb 0xaf 0xc6 0xea 0x03 0xb8 [00-60-37-31-7E-3F]# [CHG] Assistant /org/bluez/hci0/src_05_1F_EE_F3_F8_7D/dev_00_60_37_31_7E_3F/bis1 State: pending [00-60-37-31-7E-3F]# Assistant /org/bluez/hci0/src_05_1F_EE_F3_F8_7D/dev_00_60_37_31_7E_3F/bis1 pushed [00-60-37-31-7E-3F]# [CHG] Assistant /org/bluez/hci0/src_05_1F_EE_F3_F8_7D/dev_00_60_37_31_7E_3F/bis1 State: requesting [00-60-37-31-7E-3F]# [CHG] Assistant /org/bluez/hci0/src_05_1F_EE_F3_F8_7D/dev_00_60_37_31_7E_3F/bis1 State: active The GATT write commands and notifications for this scenario are shown in the btmon log below: < ACL Data TX: Handle 0 flags 0x00 dlen 32 ATT: Write Command (0x52) len 27 Handle: 0x0040 Type: Broadcast Audio Scan Control Point (0x2bc7) Data[25]: 02017df8f3ee1f0500f4015d02ffff01010000000403020400 Opcode: Add Source (0x02) Source_Address_Type: 1 Source_Address: 05:1F:EE:F3:F8:7D Source_Adv_SID: 0 Broadcast_ID: 0x5d01f4 PA_Sync_State: Synchronize to PA - PAST not available PA_Interval: 0xffff Num_Subgroups: 1 Subgroup #0: BIS_Sync State: 0x00000001 Metadata: #0: len 0x03 type 0x02 Metadata: 04 00 > ACL Data RX: Handle 0 flags 0x01 dlen 6 ATT: Handle Multiple Value Notification (0x23) len 28 Length: 0x0018 Handle: 0x003a Type: Broadcast Receive State (0x2bc8) Data[24]: 01017df8f3ee1f0500f4015d020101000000000403020400 Source_ID: 1 Source_Address_Type: 1 Source_Address: 05:1F:EE:F3:F8:7D Source_Adv_SID: 0 Broadcast_ID: 0x5d01f4 PA_Sync_State: Synchronized to PA BIG_Encryption: Broadcast_Code required Num_Subgroups: 1 Subgroup #0: BIS_Sync State: 0x00000000 Metadata: #0: len 0x03 type 0x02 Metadata: 04 00 < ACL Data TX: Handle 0 flags 0x00 dlen 25 ATT: Write Command (0x52) len 20 Handle: 0x0040 Type: Broadcast Audio Scan Control Point (0x2bc7) Data[18]: 04010102680553f1415aa265bbafc6ea03b8 Opcode: Set Broadcast_Code (0x04) Source_ID: 1 Broadcast_Code[16]: 0102680553f1415aa265bbafc6ea03b8 > ACL Data RX: Handle 0 flags 0x01 dlen 6 ATT: Handle Multiple Value Notification (0x23) len 28 Length: 0x0018 Handle: 0x003a Type: Broadcast Receive State (0x2bc8) Data[24]: 01017df8f3ee1f0500f4015d020201010000000403020400 Source_ID: 1 Source_Address_Type: 1 Source_Address: 05:1F:EE:F3:F8:7D Source_Adv_SID: 0 Broadcast_ID: 0x5d01f4 PA_Sync_State: Synchronized to PA BIG_Encryption: Decrypting Num_Subgroups: 1 Subgroup #0: BIS_Sync State: 0x00000001 Metadata: #0: len 0x03 type 0x02 Metadata: 04 00 Iulia Tanasescu (7): shared/bass: Add API to send GATT write command device: Add support to iterate through service data bass: Store Broadcast ID inside assistant struct shared/bass: Add APIs to register bcast src changed cb shared/bass: Add additional defines bass: Implement MediaAssistant Push method assistant: Implement MediaAssistant Push command client/assistant.c | 247 ++++++++++++++++++++++++++++++++ profiles/audio/bass.c | 317 +++++++++++++++++++++++++++++++++++++++++- src/device.c | 8 +- src/device.h | 5 +- src/shared/bass.c | 133 +++++++++++++++++- src/shared/bass.h | 15 +- 6 files changed, 720 insertions(+), 5 deletions(-) base-commit: 100c845b2d20e7f4f96b371e044b8b59944230ab