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Commit 604086b7 authored by Brian Gix's avatar Brian Gix Committed by Gustavo Padovan
Browse files

Bluetooth: Add User Passkey Response handling 



For some MITM protection pairing scenarios, the user is
required to enter or accept a 6 digit passkey.

Signed-off-by: default avatarBrian Gix <bgix@codeaurora.org>
Signed-off-by: default avatarGustavo F. Padovan <padovan@profusion.mobi>
parent badaaa00

include/net/bluetooth/hci_core.h

+5 −0
Original line number Diff line number Diff line
@@ -933,6 +933,11 @@ int mgmt_user_confirm_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, 
								u8 status);

int mgmt_user_confirm_neg_reply_complete(struct hci_dev *hdev,

						bdaddr_t *bdaddr, u8 status);

int mgmt_user_passkey_request(struct hci_dev *hdev, bdaddr_t *bdaddr);

int mgmt_user_passkey_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,

								u8 status);

int mgmt_user_passkey_neg_reply_complete(struct hci_dev *hdev,

						bdaddr_t *bdaddr, u8 status);

int mgmt_auth_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 status);

int mgmt_set_local_name_complete(struct hci_dev *hdev, u8 *name, u8 status);

int mgmt_read_local_oob_data_reply_complete(struct hci_dev *hdev, u8 *hash,

net/bluetooth/mgmt.c

+73 −1
Original line number Diff line number Diff line
@@ -1618,7 +1618,15 @@ static int user_pairing_resp(struct sock *sk, u16 index, bdaddr_t *bdaddr, 
	}



	/* Continue with pairing via HCI */

	if (hci_op == HCI_OP_USER_PASSKEY_REPLY) {

		struct hci_cp_user_passkey_reply cp;



		bacpy(&cp.bdaddr, bdaddr);

		cp.passkey = passkey;

		err = hci_send_cmd(hdev, hci_op, sizeof(cp), &cp);

	} else

		err = hci_send_cmd(hdev, hci_op, sizeof(*bdaddr), bdaddr);



	if (err < 0)

		mgmt_pending_remove(cmd);
@@ -1660,6 +1668,37 @@ static int user_confirm_neg_reply(struct sock *sk, u16 index, void *data, 
			HCI_OP_USER_CONFIRM_NEG_REPLY, 0);

}



static int user_passkey_reply(struct sock *sk, u16 index, void *data, u16 len)

{

	struct mgmt_cp_user_passkey_reply *cp = (void *) data;



	BT_DBG("");



	if (len != sizeof(*cp))

		return cmd_status(sk, index, MGMT_OP_USER_PASSKEY_REPLY,

									EINVAL);



	return user_pairing_resp(sk, index, &cp->bdaddr,

			MGMT_OP_USER_PASSKEY_REPLY,

			HCI_OP_USER_PASSKEY_REPLY, cp->passkey);

}



static int user_passkey_neg_reply(struct sock *sk, u16 index, void *data,

									u16 len)

{

	struct mgmt_cp_user_passkey_neg_reply *cp = (void *) data;



	BT_DBG("");



	if (len != sizeof(*cp))

		return cmd_status(sk, index, MGMT_OP_USER_PASSKEY_NEG_REPLY,

									EINVAL);



	return user_pairing_resp(sk, index, &cp->bdaddr,

			MGMT_OP_USER_PASSKEY_NEG_REPLY,

			HCI_OP_USER_PASSKEY_NEG_REPLY, 0);

}



static int set_local_name(struct sock *sk, u16 index, unsigned char *data,

								u16 len)

{
@@ -2117,6 +2156,13 @@ int mgmt_control(struct sock *sk, struct msghdr *msg, size_t msglen) 
		err = user_confirm_neg_reply(sk, index, buf + sizeof(*hdr),

									len);

		break;

	case MGMT_OP_USER_PASSKEY_REPLY:

		err = user_passkey_reply(sk, index, buf + sizeof(*hdr), len);

		break;

	case MGMT_OP_USER_PASSKEY_NEG_REPLY:

		err = user_passkey_neg_reply(sk, index, buf + sizeof(*hdr),

									len);

		break;

	case MGMT_OP_SET_LOCAL_NAME:

		err = set_local_name(sk, index, buf + sizeof(*hdr), len);

		break;
@@ -2477,6 +2523,18 @@ int mgmt_user_confirm_request(struct hci_dev *hdev, bdaddr_t *bdaddr, 
									NULL);

}



int mgmt_user_passkey_request(struct hci_dev *hdev, bdaddr_t *bdaddr)

{

	struct mgmt_ev_user_passkey_request ev;



	BT_DBG("%s", hdev->name);



	bacpy(&ev.bdaddr, bdaddr);



	return mgmt_event(MGMT_EV_USER_PASSKEY_REQUEST, hdev, &ev, sizeof(ev),

									NULL);

}



static int user_pairing_resp_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,

							u8 status, u8 opcode)

{
@@ -2511,6 +2569,20 @@ int mgmt_user_confirm_neg_reply_complete(struct hci_dev *hdev, 
					MGMT_OP_USER_CONFIRM_NEG_REPLY);

}



int mgmt_user_passkey_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,

								u8 status)

{

	return user_pairing_resp_complete(hdev, bdaddr, status,

						MGMT_OP_USER_PASSKEY_REPLY);

}



int mgmt_user_passkey_neg_reply_complete(struct hci_dev *hdev,

						bdaddr_t *bdaddr, u8 status)

{

	return user_pairing_resp_complete(hdev, bdaddr, status,

					MGMT_OP_USER_PASSKEY_NEG_REPLY);

}



int mgmt_auth_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 status)

{

	struct mgmt_ev_auth_failed ev;