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Bluetooth: Read encryption key size for BR/EDR connections

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Since Bluetooth 3.0 there's a HCI command available for reading the
encryption key size of an BR/EDR connection. This information is
essential e.g. for generating an LTK using SMP over BR/EDR, so store
it as part of struct hci_conn.

Signed-off-by: Johan Hedberg <[email protected]>
Signed-off-by: Marcel Holtmann <[email protected]>
This commit is contained in:
Johan Hedberg 2015-06-11 13:52:29 +03:00 • committed by Marcel Holtmann
commit 821f376668
2 changed files with 97 additions and 0 deletions
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10
include/net/bluetooth/hci.h
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@ -1202,6 +1202,16 @@ struct hci_rp_read_clock {
__le16 accuracy;
} __packed;
#define HCI_OP_READ_ENC_KEY_SIZE 0x1408
struct hci_cp_read_enc_key_size {
__le16 handle;
} __packed;
struct hci_rp_read_enc_key_size {
__u8 status;
__le16 handle;
__u8 key_size;
} __packed;
#define HCI_OP_READ_LOCAL_AMP_INFO 0x1409
struct hci_rp_read_local_amp_info {
__u8 status;