Commit 863efaf2 authored by Johan Hedberg's avatar Johan Hedberg Committed by Marcel Holtmann

Bluetooth: Add initial code for distributing local IRK

This code adds a HCI_PRIVACY flag to track whether Privacy support is
enabled (meaning we have a local IRK) and makes sure the IRK is
distributed during SMP key distribution in case this flag is set.
Signed-off-by: default avatarJohan Hedberg <johan.hedberg@intel.com>
Signed-off-by: default avatarMarcel Holtmann <marcel@holtmann.org>
parent 524237cb
......@@ -126,6 +126,7 @@ enum {
HCI_SSP_ENABLED,
HCI_SC_ENABLED,
HCI_SC_ONLY,
HCI_PRIVACY,
HCI_RPA_RESOLVING,
HCI_HS_ENABLED,
HCI_LE_ENABLED,
......
......@@ -303,6 +303,8 @@ struct hci_dev {
__u8 scan_rsp_data[HCI_MAX_AD_LENGTH];
__u8 scan_rsp_data_len;
__u8 irk[16];
int (*open)(struct hci_dev *hdev);
int (*close)(struct hci_dev *hdev);
int (*flush)(struct hci_dev *hdev);
......
......@@ -265,6 +265,9 @@ static void build_pairing_cmd(struct l2cap_conn *conn,
if (test_bit(HCI_RPA_RESOLVING, &hdev->dev_flags))
remote_dist |= SMP_DIST_ID_KEY;
if (test_bit(HCI_PRIVACY, &hdev->dev_flags))
local_dist |= SMP_DIST_ID_KEY;
if (rsp == NULL) {
req->io_capability = conn->hcon->io_capability;
req->oob_flag = SMP_OOB_NOT_PRESENT;
......@@ -1189,8 +1192,7 @@ int smp_distribute_keys(struct l2cap_conn *conn, __u8 force)
struct smp_cmd_ident_addr_info addrinfo;
struct smp_cmd_ident_info idinfo;
/* Send a dummy key */
get_random_bytes(idinfo.irk, sizeof(idinfo.irk));
memcpy(idinfo.irk, hdev->irk, sizeof(idinfo.irk));
smp_send_cmd(conn, SMP_CMD_IDENT_INFO, sizeof(idinfo), &idinfo);
......
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