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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 <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
This commit is contained in:
Marcel Holtmann 2015-01-30 23:20:55 -08:00 committed by Johan Hedberg
parent c33fb9b4ef
commit f7697b1602
2 changed files with 9 additions and 0 deletions
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1
include/net/bluetooth/hci_core.h
View File

@ -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];

8
net/bluetooth/hci_core.c
View File

@ -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);