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Bluetooth: Fix auth_complete_evt for legacy units

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Legacy devices don't re-authenticate the link properly if a link key
already exists.  Thus, don't update sec_level for this case even if
hci_auth_complete_evt indicates success. Otherwise the sec_level will
not reflect a real security on the link.

Signed-off-by: Waldemar Rymarkiewicz <waldemar.rymarkiewicz@tieto.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
This commit is contained in:
Waldemar Rymarkiewicz 2011-05-31 15:49:25 +02:00 committed by Gustavo F. Padovan
parent 3581508571
commit 19f8def031
3 changed files with 13 additions and 2 deletions
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1
include/net/bluetooth/hci_core.h
View File

@ -322,6 +322,7 @@ void hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data);
/* ----- HCI Connections ----- */
enum {
HCI_CONN_AUTH_PEND,
HCI_CONN_REAUTH_PEND,
HCI_CONN_ENCRYPT_PEND,
HCI_CONN_RSWITCH_PEND,
HCI_CONN_MODE_CHANGE_PEND,

2
net/bluetooth/hci_conn.c
View File

@ -548,6 +548,8 @@ static int hci_conn_auth(struct hci_conn *conn, __u8 sec_level, __u8 auth_type)
cp.handle = cpu_to_le16(conn->handle);
hci_send_cmd(conn->hdev, HCI_OP_AUTH_REQUESTED,
sizeof(cp), &cp);
if (conn->key_type != 0xff)
set_bit(HCI_CONN_REAUTH_PEND, &conn->pend);
}
return 0;

12
net/bluetooth/hci_event.c
View File

@ -1489,13 +1489,21 @@ static inline void hci_auth_complete_evt(struct hci_dev *hdev, struct sk_buff *s
conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
if (conn) {
if (!ev->status) {
conn->link_mode |= HCI_LM_AUTH;
conn->sec_level = conn->pending_sec_level;
if (!(conn->ssp_mode > 0 && hdev->ssp_mode > 0) &&
test_bit(HCI_CONN_REAUTH_PEND,
&conn->pend)) {
BT_INFO("re-auth of legacy device is not"
"possible.");
} else {
conn->link_mode |= HCI_LM_AUTH;
conn->sec_level = conn->pending_sec_level;
}
} else {
mgmt_auth_failed(hdev->id, &conn->dst, ev->status);
}
clear_bit(HCI_CONN_AUTH_PEND, &conn->pend);
clear_bit(HCI_CONN_REAUTH_PEND, &conn->pend);
if (conn->state == BT_CONFIG) {
if (!ev->status && hdev->ssp_mode > 0 &&