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Bluetooth: BR/EDR: Initiate encryption on link 

Adds method to start encrypting the link by local controller. Encryption
implies successful authentication to be done before.

> HCI Event: Auth Complete (0x06) plen 3
	Status: Success (0x00)
	Handle: 11
< HCI Command: Set Connection Encryption (0x01|0x0013) plen 3
	Handle: 11
	Encryption: Enabled (0x01)
> HCI Event: Command Status (0x0f) plen 4
	Set Connection Encryption (0x01|0x0013) ncmd 1
	Status: Success (0x00)
> HCI Event: Encryption Change (0x08) plen 4
	Status: Success (0x00)
	Handle: 11
	Encryption: Enabled with E0 (0x01)

Change-Id: I3bbfc6ca77a6fd088582ab45f14d7c122aec7f05
Signed-off-by: Arkadiusz Lichwa <arkadiusz.lichwa@tieto.com>
This commit is contained in:
Arkadiusz Lichwa 2016-03-18 14:19:35 +01:00 committed by Johan Hedberg
parent 99483fded6
commit bf62dfad70
2 changed files with 28 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
include/bluetooth/hci.h
View File

@ -262,6 +262,12 @@ struct bt_hci_cp_auth_requested {
uint16_t handle;
} __packed;
#define BT_HCI_OP_SET_CONN_ENCRYPT BT_OP(BT_OGF_LINK_CTRL, 0x0013)
struct bt_hci_cp_set_conn_encrypt {
uint16_t handle;
uint8_t encrypt;
} __packed;
#define BT_HCI_OP_REMOTE_NAME_REQUEST BT_OP(BT_OGF_LINK_CTRL, 0x0019)
struct bt_hci_cp_remote_name_request {
bt_addr_t bdaddr;

22
net/bluetooth/hci_core.c
View File

@ -1708,6 +1708,26 @@ check_names:
discovery_results_count = 0;
}
static void link_encr(const uint16_t handle)
{
struct bt_hci_cp_set_conn_encrypt *encr;
struct net_buf *buf;
BT_DBG("");
buf = bt_hci_cmd_create(BT_HCI_OP_SET_CONN_ENCRYPT, sizeof(*encr));
if (!buf) {
BT_ERR("Out of command buffers");
return;
}
encr = net_buf_add(buf, sizeof(*encr));
encr->handle = sys_cpu_to_le16(handle);
encr->encrypt = 0x01;
bt_hci_cmd_send_sync(BT_HCI_OP_SET_CONN_ENCRYPT, buf, NULL);
}
static void auth_complete(struct net_buf *buf)
{
struct bt_hci_evt_auth_complete *evt = (void *)buf->data;
@ -1732,6 +1752,8 @@ static void auth_complete(struct net_buf *buf)
/* Reset required security level to current operational */
conn->required_sec_level = conn->sec_level;
} else {
link_encr(handle);
}
bt_conn_unref(conn);