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-rw-r--r--net/bluetooth/hci_event.c63
-rw-r--r--net/bluetooth/l2cap_sock.c3
-rw-r--r--net/bluetooth/mgmt.c20
-rw-r--r--net/bluetooth/rfcomm/sock.c3
-rw-r--r--net/bluetooth/smp.c87
-rw-r--r--net/bluetooth/smp.h7
6 files changed, 106 insertions, 77 deletions
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index a6a3d32553c5..49774912cb01 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -199,6 +199,8 @@ static void hci_cc_reset(struct hci_dev *hdev, struct sk_buff *skb)
memset(hdev->scan_rsp_data, 0, sizeof(hdev->scan_rsp_data));
hdev->scan_rsp_data_len = 0;
+ hdev->le_scan_type = LE_SCAN_PASSIVE;
+
hdev->ssp_debug_mode = 0;
}
@@ -997,6 +999,25 @@ static void hci_cc_le_set_adv_enable(struct hci_dev *hdev, struct sk_buff *skb)
hci_dev_unlock(hdev);
}
+static void hci_cc_le_set_scan_param(struct hci_dev *hdev, struct sk_buff *skb)
+{
+ struct hci_cp_le_set_scan_param *cp;
+ __u8 status = *((__u8 *) skb->data);
+
+ BT_DBG("%s status 0x%2.2x", hdev->name, status);
+
+ cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_SCAN_PARAM);
+ if (!cp)
+ return;
+
+ hci_dev_lock(hdev);
+
+ if (!status)
+ hdev->le_scan_type = cp->type;
+
+ hci_dev_unlock(hdev);
+}
+
static void hci_cc_le_set_scan_enable(struct hci_dev *hdev,
struct sk_buff *skb)
{
@@ -1704,6 +1725,36 @@ unlock:
hci_dev_unlock(hdev);
}
+static void hci_cs_le_start_enc(struct hci_dev *hdev, u8 status)
+{
+ struct hci_cp_le_start_enc *cp;
+ struct hci_conn *conn;
+
+ BT_DBG("%s status 0x%2.2x", hdev->name, status);
+
+ if (!status)
+ return;
+
+ hci_dev_lock(hdev);
+
+ cp = hci_sent_cmd_data(hdev, HCI_OP_LE_START_ENC);
+ if (!cp)
+ goto unlock;
+
+ conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
+ if (!conn)
+ goto unlock;
+
+ if (conn->state != BT_CONNECTED)
+ goto unlock;
+
+ hci_disconnect(conn, HCI_ERROR_AUTH_FAILURE);
+ hci_conn_drop(conn);
+
+unlock:
+ hci_dev_unlock(hdev);
+}
+
static void hci_inquiry_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
{
__u8 status = *((__u8 *) skb->data);
@@ -2488,6 +2539,10 @@ static void hci_cmd_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
hci_cc_le_set_adv_enable(hdev, skb);
break;
+ case HCI_OP_LE_SET_SCAN_PARAM:
+ hci_cc_le_set_scan_param(hdev, skb);
+ break;
+
case HCI_OP_LE_SET_SCAN_ENABLE:
hci_cc_le_set_scan_enable(hdev, skb);
break;
@@ -2611,6 +2666,10 @@ static void hci_cmd_status_evt(struct hci_dev *hdev, struct sk_buff *skb)
hci_cs_le_create_conn(hdev, ev->status);
break;
+ case HCI_OP_LE_START_ENC:
+ hci_cs_le_start_enc(hdev, ev->status);
+ break;
+
default:
BT_DBG("%s opcode 0x%4.4x", hdev->name, opcode);
break;
@@ -3459,8 +3518,8 @@ static void hci_user_confirm_request_evt(struct hci_dev *hdev,
}
confirm:
- mgmt_user_confirm_request(hdev, &ev->bdaddr, ACL_LINK, 0, ev->passkey,
- confirm_hint);
+ mgmt_user_confirm_request(hdev, &ev->bdaddr, ACL_LINK, 0,
+ le32_to_cpu(ev->passkey), confirm_hint);
unlock:
hci_dev_unlock(hdev);
diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c
index 33cd5615ff1e..f59e00c2daa9 100644
--- a/net/bluetooth/l2cap_sock.c
+++ b/net/bluetooth/l2cap_sock.c
@@ -360,7 +360,8 @@ static int l2cap_sock_getname(struct socket *sock, struct sockaddr *addr,
BT_DBG("sock %p, sk %p", sock, sk);
- if (peer && sk->sk_state != BT_CONNECTED)
+ if (peer && sk->sk_state != BT_CONNECTED &&
+ sk->sk_state != BT_CONNECT && sk->sk_state != BT_CONNECT2)
return -ENOTCONN;
memset(la, 0, sizeof(struct sockaddr_l2));
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 96670f581bb0..d2d4e0d5aed0 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -2762,23 +2762,11 @@ static struct pending_cmd *find_pairing(struct hci_conn *conn)
static void pairing_complete(struct pending_cmd *cmd, u8 status)
{
- const struct mgmt_cp_pair_device *cp = cmd->param;
struct mgmt_rp_pair_device rp;
struct hci_conn *conn = cmd->user_data;
- /* If we had a pairing failure we might have already received
- * the remote Identity Address Information and updated the
- * hci_conn variables with it, however we would not yet have
- * notified user space of the resolved identity. Therefore, use
- * the address given in the Pair Device command in case the
- * pairing failed.
- */
- if (status) {
- memcpy(&rp.addr, &cp->addr, sizeof(rp.addr));
- } else {
- bacpy(&rp.addr.bdaddr, &conn->dst);
- rp.addr.type = link_to_bdaddr(conn->type, conn->dst_type);
- }
+ bacpy(&rp.addr.bdaddr, &conn->dst);
+ rp.addr.type = link_to_bdaddr(conn->type, conn->dst_type);
cmd_complete(cmd->sk, cmd->index, MGMT_OP_PAIR_DEVICE, status,
&rp, sizeof(rp));
@@ -5338,7 +5326,7 @@ void mgmt_pin_code_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
}
int mgmt_user_confirm_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
- u8 link_type, u8 addr_type, __le32 value,
+ u8 link_type, u8 addr_type, u32 value,
u8 confirm_hint)
{
struct mgmt_ev_user_confirm_request ev;
@@ -5348,7 +5336,7 @@ int mgmt_user_confirm_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
bacpy(&ev.addr.bdaddr, bdaddr);
ev.addr.type = link_to_bdaddr(link_type, addr_type);
ev.confirm_hint = confirm_hint;
- ev.value = value;
+ ev.value = cpu_to_le32(value);
return mgmt_event(MGMT_EV_USER_CONFIRM_REQUEST, hdev, &ev, sizeof(ev),
NULL);
diff --git a/net/bluetooth/rfcomm/sock.c b/net/bluetooth/rfcomm/sock.c
index c024e715512f..eabd25ab5ad9 100644
--- a/net/bluetooth/rfcomm/sock.c
+++ b/net/bluetooth/rfcomm/sock.c
@@ -534,7 +534,8 @@ static int rfcomm_sock_getname(struct socket *sock, struct sockaddr *addr, int *
BT_DBG("sock %p, sk %p", sock, sk);
- if (peer && sk->sk_state != BT_CONNECTED)
+ if (peer && sk->sk_state != BT_CONNECTED &&
+ sk->sk_state != BT_CONNECT && sk->sk_state != BT_CONNECT2)
return -ENOTCONN;
memset(sa, 0, sizeof(*sa));
diff --git a/net/bluetooth/smp.c b/net/bluetooth/smp.c
index 2a7ee7f6cd8b..dfb4e1161c10 100644
--- a/net/bluetooth/smp.c
+++ b/net/bluetooth/smp.c
@@ -387,6 +387,11 @@ static int tk_request(struct l2cap_conn *conn, u8 remote_oob, u8 auth,
if (!(auth & SMP_AUTH_BONDING) && method == JUST_CFM)
method = JUST_WORKS;
+ /* Don't confirm locally initiated pairing attempts */
+ if (method == JUST_CFM && test_bit(SMP_FLAG_INITIATOR,
+ &smp->smp_flags))
+ method = JUST_WORKS;
+
/* If Just Works, Continue with Zero TK */
if (method == JUST_WORKS) {
set_bit(SMP_FLAG_TK_VALID, &smp->smp_flags);
@@ -422,10 +427,14 @@ static int tk_request(struct l2cap_conn *conn, u8 remote_oob, u8 auth,
if (method == REQ_PASSKEY)
ret = mgmt_user_passkey_request(hcon->hdev, &hcon->dst,
hcon->type, hcon->dst_type);
+ else if (method == JUST_CFM)
+ ret = mgmt_user_confirm_request(hcon->hdev, &hcon->dst,
+ hcon->type, hcon->dst_type,
+ passkey, 1);
else
ret = mgmt_user_passkey_notify(hcon->hdev, &hcon->dst,
hcon->type, hcon->dst_type,
- cpu_to_le32(passkey), 0);
+ passkey, 0);
hci_dev_unlock(hcon->hdev);
@@ -547,20 +556,6 @@ error:
smp_failure(conn, reason);
}
-static void smp_reencrypt(struct work_struct *work)
-{
- struct smp_chan *smp = container_of(work, struct smp_chan,
- reencrypt.work);
- struct l2cap_conn *conn = smp->conn;
- struct hci_conn *hcon = conn->hcon;
- struct smp_ltk *ltk = smp->ltk;
-
- BT_DBG("");
-
- hci_le_start_enc(hcon, ltk->ediv, ltk->rand, ltk->val);
- hcon->enc_key_size = ltk->enc_size;
-}
-
static struct smp_chan *smp_chan_create(struct l2cap_conn *conn)
{
struct smp_chan *smp;
@@ -571,7 +566,6 @@ static struct smp_chan *smp_chan_create(struct l2cap_conn *conn)
INIT_WORK(&smp->confirm, confirm_work);
INIT_WORK(&smp->random, random_work);
- INIT_DELAYED_WORK(&smp->reencrypt, smp_reencrypt);
smp->conn = conn;
conn->smp_chan = smp;
@@ -589,8 +583,6 @@ void smp_chan_destroy(struct l2cap_conn *conn)
BUG_ON(!smp);
- cancel_delayed_work_sync(&smp->reencrypt);
-
complete = test_bit(SMP_FLAG_COMPLETE, &smp->smp_flags);
mgmt_smp_complete(conn->hcon, complete);
@@ -712,6 +704,8 @@ static u8 smp_cmd_pairing_req(struct l2cap_conn *conn, struct sk_buff *skb)
if (ret)
return SMP_UNSPECIFIED;
+ clear_bit(SMP_FLAG_INITIATOR, &smp->smp_flags);
+
return 0;
}
@@ -867,6 +861,8 @@ static u8 smp_cmd_security_req(struct l2cap_conn *conn, struct sk_buff *skb)
smp_send_cmd(conn, SMP_CMD_PAIRING_REQ, sizeof(cp), &cp);
+ clear_bit(SMP_FLAG_INITIATOR, &smp->smp_flags);
+
return 0;
}
@@ -884,11 +880,15 @@ bool smp_sufficient_security(struct hci_conn *hcon, u8 sec_level)
int smp_conn_security(struct hci_conn *hcon, __u8 sec_level)
{
struct l2cap_conn *conn = hcon->l2cap_data;
- struct smp_chan *smp = conn->smp_chan;
+ struct smp_chan *smp;
__u8 authreq;
BT_DBG("conn %p hcon %p level 0x%2.2x", conn, hcon, sec_level);
+ /* This may be NULL if there's an unexpected disconnection */
+ if (!conn)
+ return 1;
+
if (!test_bit(HCI_LE_ENABLED, &hcon->hdev->dev_flags))
return 1;
@@ -928,6 +928,8 @@ int smp_conn_security(struct hci_conn *hcon, __u8 sec_level)
smp_send_cmd(conn, SMP_CMD_SECURITY_REQ, sizeof(cp), &cp);
}
+ set_bit(SMP_FLAG_INITIATOR, &smp->smp_flags);
+
done:
hcon->pending_sec_level = sec_level;
@@ -1058,12 +1060,6 @@ static int smp_cmd_ident_addr_info(struct l2cap_conn *conn,
smp->remote_irk = hci_add_irk(conn->hcon->hdev, &smp->id_addr,
smp->id_addr_type, smp->irk, &rpa);
- /* Track the connection based on the Identity Address from now on */
- bacpy(&hcon->dst, &smp->id_addr);
- hcon->dst_type = smp->id_addr_type;
-
- l2cap_conn_update_id_addr(hcon);
-
smp_distribute_keys(conn);
return 0;
@@ -1214,8 +1210,16 @@ static void smp_notify_keys(struct l2cap_conn *conn)
struct smp_cmd_pairing *rsp = (void *) &smp->prsp[1];
bool persistent;
- if (smp->remote_irk)
+ if (smp->remote_irk) {
mgmt_new_irk(hdev, smp->remote_irk);
+ /* Now that user space can be considered to know the
+ * identity address track the connection based on it
+ * from now on.
+ */
+ bacpy(&hcon->dst, &smp->remote_irk->bdaddr);
+ hcon->dst_type = smp->remote_irk->addr_type;
+ l2cap_conn_update_id_addr(hcon);
+ }
/* The LTKs and CSRKs should be persistent only if both sides
* had the bonding bit set in their authentication requests.
@@ -1253,7 +1257,6 @@ int smp_distribute_keys(struct l2cap_conn *conn)
struct smp_chan *smp = conn->smp_chan;
struct hci_conn *hcon = conn->hcon;
struct hci_dev *hdev = hcon->hdev;
- bool ltk_encrypt;
__u8 *keydist;
BT_DBG("conn %p", conn);
@@ -1353,32 +1356,12 @@ int smp_distribute_keys(struct l2cap_conn *conn)
if ((smp->remote_key_dist & 0x07))
return 0;
- /* Check if we should try to re-encrypt the link with the LTK.
- * SMP_FLAG_LTK_ENCRYPT flag is used to track whether we've
- * already tried this (in which case we shouldn't try again).
- *
- * The request will trigger an encryption key refresh event
- * which will cause a call to auth_cfm and eventually lead to
- * l2cap_core.c calling this smp_distribute_keys function again
- * and thereby completing the process.
- */
- if (smp->ltk)
- ltk_encrypt = !test_and_set_bit(SMP_FLAG_LTK_ENCRYPT,
- &smp->smp_flags);
- else
- ltk_encrypt = false;
+ clear_bit(HCI_CONN_LE_SMP_PEND, &hcon->flags);
+ cancel_delayed_work_sync(&conn->security_timer);
+ set_bit(SMP_FLAG_COMPLETE, &smp->smp_flags);
+ smp_notify_keys(conn);
- /* Re-encrypt the link with LTK if possible */
- if (ltk_encrypt && hcon->out) {
- queue_delayed_work(hdev->req_workqueue, &smp->reencrypt,
- SMP_REENCRYPT_TIMEOUT);
- } else {
- clear_bit(HCI_CONN_LE_SMP_PEND, &hcon->flags);
- cancel_delayed_work_sync(&conn->security_timer);
- set_bit(SMP_FLAG_COMPLETE, &smp->smp_flags);
- smp_notify_keys(conn);
- smp_chan_destroy(conn);
- }
+ smp_chan_destroy(conn);
return 0;
}
diff --git a/net/bluetooth/smp.h b/net/bluetooth/smp.h
index b6913471815a..1277147a9150 100644
--- a/net/bluetooth/smp.h
+++ b/net/bluetooth/smp.h
@@ -118,10 +118,8 @@ struct smp_cmd_security_req {
#define SMP_FLAG_TK_VALID 1
#define SMP_FLAG_CFM_PENDING 2
#define SMP_FLAG_MITM_AUTH 3
-#define SMP_FLAG_LTK_ENCRYPT 4
-#define SMP_FLAG_COMPLETE 5
-
-#define SMP_REENCRYPT_TIMEOUT msecs_to_jiffies(500)
+#define SMP_FLAG_COMPLETE 4
+#define SMP_FLAG_INITIATOR 5
struct smp_chan {
struct l2cap_conn *conn;
@@ -144,7 +142,6 @@ struct smp_chan {
unsigned long smp_flags;
struct work_struct confirm;
struct work_struct random;
- struct delayed_work reencrypt;
};
/* SMP Commands */
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-15 11:05:53 +0000