From: Luiz Augusto von Dentz <luiz.von.dentz@xxxxxxxxx>
The advertisement data size of broadcast announcement is always set to
the maximum rather than the actual size:
Before:
< HCI Command: LE Set Exte.. (0x08|0x0037) plen 11
Handle: 0x01
Operation: Complete extended advertising data (0x03)
Fragment preference: Minimize fragmentation (0x01)
Data length: 0xfb
Service Data: Broadcast Audio Announcement (0x1852)
Broadcast ID: 4734947 (0x483fe3)
After:
< HCI Command: LE Set Exte.. (0x08|0x0037) plen 11
Handle: 0x01
Operation: Complete extended advertising data (0x03)
Fragment preference: Minimize fragmentation (0x01)
Data length: 0x07
Service Data: Broadcast Audio Announcement (0x1852)
Broadcast ID: 4734947 (0x483fe3)
Link: https://github.com/bluez/bluez/issues/1117#issuecomment-2959262176
Fixes: b4da091fed83 ("Bluetooth: hci_sync: Fix broadcast/PA when using an existing instance")
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@xxxxxxxxx>
---
net/bluetooth/hci_sync.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/net/bluetooth/hci_sync.c b/net/bluetooth/hci_sync.c
index 3d4370c7c26d..5e7eac1c3529 100644
--- a/net/bluetooth/hci_sync.c
+++ b/net/bluetooth/hci_sync.c
@@ -1590,7 +1590,8 @@ static int hci_adv_bcast_annoucement(struct hci_dev *hdev, struct adv_info *adv)
get_random_bytes(bid, sizeof(bid));
len = eir_append_service_data(ad, 0, 0x1852, bid, sizeof(bid));
memcpy(ad + len, adv->adv_data, adv->adv_data_len);
- hci_set_adv_instance_data(hdev, adv->instance, sizeof(ad), ad, 0, NULL);
+ hci_set_adv_instance_data(hdev, adv->instance, len + adv->adv_data_len,
+ ad, 0, NULL);
return hci_update_adv_data_sync(hdev, adv->instance);
}
--
2.49.0
