From cdf1963f7ba075772b4b5f91f395ed8fb84d0e70 Mon Sep 17 00:00:00 2001 From: Johan Hedberg Date: Sun, 27 Jan 2013 00:31:34 +0200 Subject: [PATCH] Bluetooth: Add support for 32-bit UUIDs in EIR data This patch adds the necessary code for inserting a list of 32-bit UUIDs into the EIR data. Signed-off-by: Johan Hedberg Acked-by: Marcel Holtmann Signed-off-by: Gustavo Padovan --- net/bluetooth/mgmt.c | 34 ++++++++++++++++++++++++++++++++++ 1 file changed, 34 insertions(+) diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c index 497928d..0110a75 100644 --- a/net/bluetooth/mgmt.c +++ b/net/bluetooth/mgmt.c @@ -477,6 +477,39 @@ static u8 *create_uuid16_list(struct hci_dev *hdev, u8 *data, ptrdiff_t len) return ptr; } +static u8 *create_uuid32_list(struct hci_dev *hdev, u8 *data, ptrdiff_t len) +{ + u8 *ptr = data, *uuids_start = NULL; + struct bt_uuid *uuid; + + if (len < 6) + return ptr; + + list_for_each_entry(uuid, &hdev->uuids, list) { + if (uuid->size != 32) + continue; + + if (!uuids_start) { + uuids_start = ptr; + uuids_start[0] = 1; + uuids_start[1] = EIR_UUID32_ALL; + ptr += 2; + } + + /* Stop if not enough space to put next UUID */ + if ((ptr - data) + sizeof(u32) > len) { + uuids_start[1] = EIR_UUID32_SOME; + break; + } + + memcpy(ptr, &uuid->uuid[12], sizeof(u32)); + ptr += sizeof(u32); + uuids_start[0] += sizeof(u32); + } + + return ptr; +} + static void create_eir(struct hci_dev *hdev, u8 *data) { u8 *ptr = data; @@ -521,6 +554,7 @@ 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)); } static int update_eir(struct hci_dev *hdev) -- 2.7.4