From f7697b1602d13ef80779caf23d13fa1511193144 Mon Sep 17 00:00:00 2001 From: Marcel Holtmann Date: Fri, 30 Jan 2015 23:20:55 -0800 Subject: [PATCH] Bluetooth: Store OOB data present value for each set of remote OOB data Instead of doing complex calculation every time the OOB data is used, just calculate the OOB data present value and store it with the OOB data raw values. Signed-off-by: Marcel Holtmann Signed-off-by: Johan Hedberg --- include/net/bluetooth/hci_core.h | 1 + net/bluetooth/hci_core.c | 8 ++++++++ 2 files changed, 9 insertions(+) diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h index 1780f1681ecf..a37e10f4e2b3 100644 --- a/include/net/bluetooth/hci_core.h +++ b/include/net/bluetooth/hci_core.h @@ -145,6 +145,7 @@ struct oob_data { struct list_head list; bdaddr_t bdaddr; u8 bdaddr_type; + u8 present; u8 hash192[16]; u8 rand192[16]; u8 hash256[16]; diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c index 5d4ac3fbbc08..f045c062f8f0 100644 --- a/net/bluetooth/hci_core.c +++ b/net/bluetooth/hci_core.c @@ -2581,9 +2581,15 @@ int hci_add_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr, if (hash192 && rand192) { memcpy(data->hash192, hash192, sizeof(data->hash192)); memcpy(data->rand192, rand192, sizeof(data->rand192)); + if (hash256 && rand256) + data->present = 0x03; } else { memset(data->hash192, 0, sizeof(data->hash192)); memset(data->rand192, 0, sizeof(data->rand192)); + if (hash256 && rand256) + data->present = 0x02; + else + data->present = 0x00; } if (hash256 && rand256) { @@ -2592,6 +2598,8 @@ int hci_add_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr, } else { memset(data->hash256, 0, sizeof(data->hash256)); memset(data->rand256, 0, sizeof(data->rand256)); + if (hash192 && rand192) + data->present = 0x01; } BT_DBG("%s for %pMR", hdev->name, bdaddr); -- GitLab