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Bluetooth: Add management support for user confirmation request 

This patch adds support for the user confirmation (numeric comparison)
Secure Simple Pairing authentication method.

Signed-off-by: Johan Hedberg <johan.hedberg@nokia.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
This commit is contained in:
Johan Hedberg 2011-02-19 12:05:57 -03:00 committed by Gustavo F. Padovan
parent e9a416b5ce
commit a5c296832b
5 changed files with 194 additions and 0 deletions
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17
include/net/bluetooth/hci.h
View File

@ -415,6 +415,17 @@ struct hci_cp_io_capability_reply {
__u8 authentication;
} __packed;
#define HCI_OP_USER_CONFIRM_REPLY 0x042c
struct hci_cp_user_confirm_reply {
bdaddr_t bdaddr;
} __packed;
struct hci_rp_user_confirm_reply {
__u8 status;
bdaddr_t bdaddr;
} __packed;
#define HCI_OP_USER_CONFIRM_NEG_REPLY 0x042d
#define HCI_OP_IO_CAPABILITY_NEG_REPLY 0x0434
struct hci_cp_io_capability_neg_reply {
bdaddr_t bdaddr;
@ -936,6 +947,12 @@ struct hci_ev_io_capa_reply {
__u8 authentication;
} __packed;
#define HCI_EV_USER_CONFIRM_REQUEST 0x33
struct hci_ev_user_confirm_req {
bdaddr_t bdaddr;
__le32 passkey;
} __packed;
#define HCI_EV_SIMPLE_PAIR_COMPLETE 0x36
struct hci_ev_simple_pair_complete {
__u8 status;

4
include/net/bluetooth/hci_core.h
View File

@ -762,6 +762,10 @@ int mgmt_connect_failed(u16 index, bdaddr_t *bdaddr, u8 status);
int mgmt_pin_code_request(u16 index, bdaddr_t *bdaddr);
int mgmt_pin_code_reply_complete(u16 index, bdaddr_t *bdaddr, u8 status);
int mgmt_pin_code_neg_reply_complete(u16 index, bdaddr_t *bdaddr, u8 status);
int mgmt_user_confirm_request(u16 index, bdaddr_t *bdaddr, __le32 value);
int mgmt_user_confirm_reply_complete(u16 index, bdaddr_t *bdaddr, u8 status);
int mgmt_user_confirm_neg_reply_complete(u16 index, bdaddr_t *bdaddr,
u8 status);
/* HCI info for socket */
#define hci_pi(sk) ((struct hci_pinfo *) sk)

20
include/net/bluetooth/mgmt.h
View File

@ -172,6 +172,19 @@ struct mgmt_rp_pair_device {
__u8 status;
} __packed;
#define MGMT_OP_USER_CONFIRM_REPLY 0x0015
struct mgmt_cp_user_confirm_reply {
__le16 index;
bdaddr_t bdaddr;
} __packed;
struct mgmt_rp_user_confirm_reply {
__le16 index;
bdaddr_t bdaddr;
__u8 status;
} __packed;
#define MGMT_OP_USER_CONFIRM_NEG_REPLY 0x0016
#define MGMT_EV_CMD_COMPLETE 0x0001
struct mgmt_ev_cmd_complete {
__le16 opcode;
@ -239,3 +252,10 @@ struct mgmt_ev_pin_code_request {
__le16 index;
bdaddr_t bdaddr;
} __packed;
#define MGMT_EV_USER_CONFIRM_REQUEST 0x000F
struct mgmt_ev_user_confirm_request {
__le16 index;
bdaddr_t bdaddr;
__le32 value;
} __packed;

50
net/bluetooth/hci_event.c
View File

@ -796,6 +796,29 @@ static void hci_cc_le_read_buffer_size(struct hci_dev *hdev,
hci_req_complete(hdev, HCI_OP_LE_READ_BUFFER_SIZE, rp->status);
}
static void hci_cc_user_confirm_reply(struct hci_dev *hdev, struct sk_buff *skb)
{
struct hci_rp_user_confirm_reply *rp = (void *) skb->data;
BT_DBG("%s status 0x%x", hdev->name, rp->status);
if (test_bit(HCI_MGMT, &hdev->flags))
mgmt_user_confirm_reply_complete(hdev->id, &rp->bdaddr,
rp->status);
}
static void hci_cc_user_confirm_neg_reply(struct hci_dev *hdev,
struct sk_buff *skb)
{
struct hci_rp_user_confirm_reply *rp = (void *) skb->data;
BT_DBG("%s status 0x%x", hdev->name, rp->status);
if (test_bit(HCI_MGMT, &hdev->flags))
mgmt_user_confirm_neg_reply_complete(hdev->id, &rp->bdaddr,
rp->status);
}
static inline void hci_cs_inquiry(struct hci_dev *hdev, __u8 status)
{
BT_DBG("%s status 0x%x", hdev->name, status);
@ -1728,6 +1751,14 @@ static inline void hci_cmd_complete_evt(struct hci_dev *hdev, struct sk_buff *sk
hci_cc_le_read_buffer_size(hdev, skb);
break;
case HCI_OP_USER_CONFIRM_REPLY:
hci_cc_user_confirm_reply(hdev, skb);
break;
case HCI_OP_USER_CONFIRM_NEG_REPLY:
hci_cc_user_confirm_neg_reply(hdev, skb);
break;
default:
BT_DBG("%s opcode 0x%x", hdev->name, opcode);
break;
@ -2362,6 +2393,21 @@ unlock:
hci_dev_unlock(hdev);
}
static inline void hci_user_confirm_request_evt(struct hci_dev *hdev,
struct sk_buff *skb)
{
struct hci_ev_user_confirm_req *ev = (void *) skb->data;
BT_DBG("%s", hdev->name);
hci_dev_lock(hdev);
if (test_bit(HCI_MGMT, &hdev->flags))
mgmt_user_confirm_request(hdev->id, &ev->bdaddr, ev->passkey);
hci_dev_unlock(hdev);
}
static inline void hci_simple_pair_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
{
struct hci_ev_simple_pair_complete *ev = (void *) skb->data;
@ -2580,6 +2626,10 @@ void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb)
hci_io_capa_reply_evt(hdev, skb);
break;
case HCI_EV_USER_CONFIRM_REQUEST:
hci_user_confirm_request_evt(hdev, skb);
break;
case HCI_EV_SIMPLE_PAIR_COMPLETE:
hci_simple_pair_complete_evt(hdev, skb);
break;

103
net/bluetooth/mgmt.c
View File

@ -1193,6 +1193,55 @@ unlock:
return err;
}
static int user_confirm_reply(struct sock *sk, unsigned char *data, u16 len,
int success)
{
struct mgmt_cp_user_confirm_reply *cp = (void *) data;
u16 dev_id, mgmt_op, hci_op;
struct pending_cmd *cmd;
struct hci_dev *hdev;
int err;
BT_DBG("");
dev_id = get_unaligned_le16(&cp->index);
if (success) {
mgmt_op = MGMT_OP_USER_CONFIRM_REPLY;
hci_op = HCI_OP_USER_CONFIRM_REPLY;
} else {
mgmt_op = MGMT_OP_USER_CONFIRM_NEG_REPLY;
hci_op = HCI_OP_USER_CONFIRM_NEG_REPLY;
}
hdev = hci_dev_get(dev_id);
if (!hdev)
return cmd_status(sk, mgmt_op, ENODEV);
if (!test_bit(HCI_UP, &hdev->flags)) {
err = cmd_status(sk, mgmt_op, ENETDOWN);
goto failed;
}
cmd = mgmt_pending_add(sk, mgmt_op, dev_id, data, len);
if (!cmd) {
err = -ENOMEM;
goto failed;
}
err = hci_send_cmd(hdev, hci_op, sizeof(cp->bdaddr), &cp->bdaddr);
if (err < 0) {
list_del(&cmd->list);
mgmt_pending_free(cmd);
}
failed:
hci_dev_unlock_bh(hdev);
hci_dev_put(hdev);
return err;
}
int mgmt_control(struct sock *sk, struct msghdr *msg, size_t msglen)
{
unsigned char *buf;
@ -1281,6 +1330,12 @@ int mgmt_control(struct sock *sk, struct msghdr *msg, size_t msglen)
case MGMT_OP_PAIR_DEVICE:
err = pair_device(sk, buf + sizeof(*hdr), len);
break;
case MGMT_OP_USER_CONFIRM_REPLY:
err = user_confirm_reply(sk, buf + sizeof(*hdr), len, 1);
break;
case MGMT_OP_USER_CONFIRM_NEG_REPLY:
err = user_confirm_reply(sk, buf + sizeof(*hdr), len, 0);
break;
default:
BT_DBG("Unknown op %u", opcode);
err = cmd_status(sk, opcode, 0x01);
@ -1541,3 +1596,51 @@ int mgmt_pin_code_neg_reply_complete(u16 index, bdaddr_t *bdaddr, u8 status)
return err;
}
int mgmt_user_confirm_request(u16 index, bdaddr_t *bdaddr, __le32 value)
{
struct mgmt_ev_user_confirm_request ev;
BT_DBG("hci%u", index);
put_unaligned_le16(index, &ev.index);
bacpy(&ev.bdaddr, bdaddr);
put_unaligned_le32(value, &ev.value);
return mgmt_event(MGMT_EV_USER_CONFIRM_REQUEST, &ev, sizeof(ev), NULL);
}
static int confirm_reply_complete(u16 index, bdaddr_t *bdaddr, u8 status,
u8 opcode)
{
struct pending_cmd *cmd;
struct mgmt_rp_user_confirm_reply rp;
int err;
cmd = mgmt_pending_find(opcode, index);
if (!cmd)
return -ENOENT;
put_unaligned_le16(index, &rp.index);
bacpy(&rp.bdaddr, bdaddr);
rp.status = status;
err = cmd_complete(cmd->sk, opcode, &rp, sizeof(rp));
list_del(&cmd->list);
mgmt_pending_free(cmd);
return err;
}
int mgmt_user_confirm_reply_complete(u16 index, bdaddr_t *bdaddr, u8 status)
{
return confirm_reply_complete(index, bdaddr, status,
MGMT_OP_USER_CONFIRM_REPLY);
}
int mgmt_user_confirm_neg_reply_complete(u16 index, bdaddr_t *bdaddr,
u8 status)
{
return confirm_reply_complete(index, bdaddr, status,
MGMT_OP_USER_CONFIRM_NEG_REPLY);
}