Bluetooth: Add support for 128-bit UUIDs in EIR data

This patch adds the necessary code for encoding a list of 128-bit UUIDs
into the EIR data.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>

diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 0110a75661ef218b889d819fec94b5e9e448cf3f..fbc8edf7dc1f66df9da4a018eb3c8b357b704eb7 100644 (file)
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -510,6 +510,39 @@ static u8 *create_uuid32_list(struct hci_dev *hdev, u8 *data, ptrdiff_t len)
        return ptr;
 }
 
+static u8 *create_uuid128_list(struct hci_dev *hdev, u8 *data, ptrdiff_t len)
+{
+       u8 *ptr = data, *uuids_start = NULL;
+       struct bt_uuid *uuid;
+
+       if (len < 18)
+               return ptr;
+
+       list_for_each_entry(uuid, &hdev->uuids, list) {
+               if (uuid->size != 128)
+                       continue;
+
+               if (!uuids_start) {
+                       uuids_start = ptr;
+                       uuids_start[0] = 1;
+                       uuids_start[1] = EIR_UUID128_ALL;
+                       ptr += 2;
+               }
+
+               /* Stop if not enough space to put next UUID */
+               if ((ptr - data) + 16 > len) {
+                       uuids_start[1] = EIR_UUID128_SOME;
+                       break;
+               }
+
+               memcpy(ptr, uuid->uuid, 16);
+               ptr += 16;
+               uuids_start[0] += 16;
+       }
+
+       return ptr;
+}
+
 static void create_eir(struct hci_dev *hdev, u8 *data)
 {
        u8 *ptr = data;
@@ -555,6 +588,7 @@ static void create_eir(struct hci_dev *hdev, u8 *data)
 
        ptr = create_uuid16_list(hdev, ptr, HCI_MAX_EIR_LENGTH - (ptr - data));
        ptr = create_uuid32_list(hdev, ptr, HCI_MAX_EIR_LENGTH - (ptr - data));
+       ptr = create_uuid128_list(hdev, ptr, HCI_MAX_EIR_LENGTH - (ptr - data));
 }
 
 static int update_eir(struct hci_dev *hdev)