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authorJohan Hedberg <johan.hedberg@intel.com>2014-05-23 13:19:53 +0300
committerMarcel Holtmann <marcel@holtmann.org>2014-05-23 11:24:04 -0700
commitd7b2545023ecfde94d3ea9c03c5480ac18da96c9 (patch)
tree1cacf5b693028850ada383f603609d9f5a8072a1
parent1cc6114402f864c3d090738df355d26c1fd374bb (diff)
Bluetooth: Clearly distinguish mgmt LTK type from authenticated property
On the mgmt level we have a key type parameter which currently accepts two possible values: 0x00 for unauthenticated and 0x01 for authenticated. However, in the internal struct smp_ltk representation we have an explicit "authenticated" boolean value. To make this distinction clear, add defines for the possible mgmt values and do conversion to and from the internal authenticated value. Signed-off-by: Johan Hedberg <johan.hedberg@intel.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
-rw-r--r--include/net/bluetooth/mgmt.h3
-rw-r--r--net/bluetooth/mgmt.c19
2 files changed, 19 insertions, 3 deletions
diff --git a/include/net/bluetooth/mgmt.h b/include/net/bluetooth/mgmt.h
index 226ae03cafe7..bcffc9ae0c89 100644
--- a/include/net/bluetooth/mgmt.h
+++ b/include/net/bluetooth/mgmt.h
@@ -181,6 +181,9 @@ struct mgmt_cp_load_link_keys {
} __packed;
#define MGMT_LOAD_LINK_KEYS_SIZE 3
+#define MGMT_LTK_UNAUTHENTICATED 0x00
+#define MGMT_LTK_AUTHENTICATED 0x01
+
struct mgmt_ltk_info {
struct mgmt_addr_info addr;
__u8 type;
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index f8ca69dd1984..5e9c21a5525f 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -4534,7 +4534,7 @@ static int load_long_term_keys(struct sock *sk, struct hci_dev *hdev,
for (i = 0; i < key_count; i++) {
struct mgmt_ltk_info *key = &cp->keys[i];
- u8 type, addr_type;
+ u8 type, addr_type, authenticated;
if (key->addr.type == BDADDR_LE_PUBLIC)
addr_type = ADDR_LE_DEV_PUBLIC;
@@ -4546,8 +4546,13 @@ static int load_long_term_keys(struct sock *sk, struct hci_dev *hdev,
else
type = HCI_SMP_LTK_SLAVE;
+ if (key->type == MGMT_LTK_UNAUTHENTICATED)
+ authenticated = 0x00;
+ else
+ authenticated = 0x01;
+
hci_add_ltk(hdev, &key->addr.bdaddr, addr_type, type,
- key->type, key->val, key->enc_size, key->ediv,
+ authenticated, key->val, key->enc_size, key->ediv,
key->rand);
}
@@ -5222,6 +5227,14 @@ void mgmt_new_link_key(struct hci_dev *hdev, struct link_key *key,
mgmt_event(MGMT_EV_NEW_LINK_KEY, hdev, &ev, sizeof(ev), NULL);
}
+static u8 mgmt_ltk_type(struct smp_ltk *ltk)
+{
+ if (ltk->authenticated)
+ return MGMT_LTK_AUTHENTICATED;
+
+ return MGMT_LTK_UNAUTHENTICATED;
+}
+
void mgmt_new_ltk(struct hci_dev *hdev, struct smp_ltk *key, bool persistent)
{
struct mgmt_ev_new_long_term_key ev;
@@ -5247,7 +5260,7 @@ void mgmt_new_ltk(struct hci_dev *hdev, struct smp_ltk *key, bool persistent)
bacpy(&ev.key.addr.bdaddr, &key->bdaddr);
ev.key.addr.type = link_to_bdaddr(LE_LINK, key->bdaddr_type);
- ev.key.type = key->authenticated;
+ ev.key.type = mgmt_ltk_type(key);
ev.key.enc_size = key->enc_size;
ev.key.ediv = key->ediv;
ev.key.rand = key->rand;