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Diffstat (limited to 'net/bluetooth/hci_event.c')
-rw-r--r--net/bluetooth/hci_event.c113
1 files changed, 72 insertions, 41 deletions
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index abaabfae19cc..af17dfb20e01 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -1835,7 +1835,9 @@ static u8 hci_cc_le_clear_accept_list(struct hci_dev *hdev, void *data,
if (rp->status)
return rp->status;
+ hci_dev_lock(hdev);
hci_bdaddr_list_clear(&hdev->le_accept_list);
+ hci_dev_unlock(hdev);
return rp->status;
}
@@ -1855,8 +1857,10 @@ static u8 hci_cc_le_add_to_accept_list(struct hci_dev *hdev, void *data,
if (!sent)
return rp->status;
+ hci_dev_lock(hdev);
hci_bdaddr_list_add(&hdev->le_accept_list, &sent->bdaddr,
sent->bdaddr_type);
+ hci_dev_unlock(hdev);
return rp->status;
}
@@ -1876,8 +1880,10 @@ static u8 hci_cc_le_del_from_accept_list(struct hci_dev *hdev, void *data,
if (!sent)
return rp->status;
+ hci_dev_lock(hdev);
hci_bdaddr_list_del(&hdev->le_accept_list, &sent->bdaddr,
sent->bdaddr_type);
+ hci_dev_unlock(hdev);
return rp->status;
}
@@ -1949,9 +1955,11 @@ static u8 hci_cc_le_add_to_resolv_list(struct hci_dev *hdev, void *data,
if (!sent)
return rp->status;
+ hci_dev_lock(hdev);
hci_bdaddr_list_add_with_irk(&hdev->le_resolv_list, &sent->bdaddr,
sent->bdaddr_type, sent->peer_irk,
sent->local_irk);
+ hci_dev_unlock(hdev);
return rp->status;
}
@@ -1971,8 +1979,10 @@ static u8 hci_cc_le_del_from_resolv_list(struct hci_dev *hdev, void *data,
if (!sent)
return rp->status;
+ hci_dev_lock(hdev);
hci_bdaddr_list_del_with_irk(&hdev->le_resolv_list, &sent->bdaddr,
sent->bdaddr_type);
+ hci_dev_unlock(hdev);
return rp->status;
}
@@ -1987,7 +1997,9 @@ static u8 hci_cc_le_clear_resolv_list(struct hci_dev *hdev, void *data,
if (rp->status)
return rp->status;
+ hci_dev_lock(hdev);
hci_bdaddr_list_clear(&hdev->le_resolv_list);
+ hci_dev_unlock(hdev);
return rp->status;
}
@@ -2834,7 +2846,7 @@ static void hci_cs_le_create_conn(struct hci_dev *hdev, u8 status)
bt_dev_dbg(hdev, "status 0x%2.2x", status);
/* All connection failure handling is taken care of by the
- * hci_le_conn_failed function which is triggered by the HCI
+ * hci_conn_failed function which is triggered by the HCI
* request completion callbacks used for connecting.
*/
if (status)
@@ -2859,7 +2871,7 @@ static void hci_cs_le_ext_create_conn(struct hci_dev *hdev, u8 status)
bt_dev_dbg(hdev, "status 0x%2.2x", status);
/* All connection failure handling is taken care of by the
- * hci_le_conn_failed function which is triggered by the HCI
+ * hci_conn_failed function which is triggered by the HCI
* request completion callbacks used for connecting.
*/
if (status)
@@ -3067,18 +3079,20 @@ static void hci_conn_complete_evt(struct hci_dev *hdev, void *data,
{
struct hci_ev_conn_complete *ev = data;
struct hci_conn *conn;
+ u8 status = ev->status;
- if (__le16_to_cpu(ev->handle) > HCI_CONN_HANDLE_MAX) {
- bt_dev_err(hdev, "Ignoring HCI_Connection_Complete for invalid handle");
- return;
- }
-
- bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
+ bt_dev_dbg(hdev, "status 0x%2.2x", status);
hci_dev_lock(hdev);
conn = hci_conn_hash_lookup_ba(hdev, ev->link_type, &ev->bdaddr);
if (!conn) {
+ /* In case of error status and there is no connection pending
+ * just unlock as there is nothing to cleanup.
+ */
+ if (ev->status)
+ goto unlock;
+
/* Connection may not exist if auto-connected. Check the bredr
* allowlist to see if this device is allowed to auto connect.
* If link is an ACL type, create a connection class
@@ -3122,8 +3136,14 @@ static void hci_conn_complete_evt(struct hci_dev *hdev, void *data,
goto unlock;
}
- if (!ev->status) {
+ if (!status) {
conn->handle = __le16_to_cpu(ev->handle);
+ if (conn->handle > HCI_CONN_HANDLE_MAX) {
+ bt_dev_err(hdev, "Invalid handle: 0x%4.4x > 0x%4.4x",
+ conn->handle, HCI_CONN_HANDLE_MAX);
+ status = HCI_ERROR_INVALID_PARAMETERS;
+ goto done;
+ }
if (conn->type == ACL_LINK) {
conn->state = BT_CONFIG;
@@ -3164,19 +3184,14 @@ static void hci_conn_complete_evt(struct hci_dev *hdev, void *data,
hci_send_cmd(hdev, HCI_OP_CHANGE_CONN_PTYPE, sizeof(cp),
&cp);
}
- } else {
- conn->state = BT_CLOSED;
- if (conn->type == ACL_LINK)
- mgmt_connect_failed(hdev, &conn->dst, conn->type,
- conn->dst_type, ev->status);
}
if (conn->type == ACL_LINK)
hci_sco_setup(conn, ev->status);
- if (ev->status) {
- hci_connect_cfm(conn, ev->status);
- hci_conn_del(conn);
+done:
+ if (status) {
+ hci_conn_failed(conn, status);
} else if (ev->link_type == SCO_LINK) {
switch (conn->setting & SCO_AIRMODE_MASK) {
case SCO_AIRMODE_CVSD:
@@ -3185,7 +3200,7 @@ static void hci_conn_complete_evt(struct hci_dev *hdev, void *data,
break;
}
- hci_connect_cfm(conn, ev->status);
+ hci_connect_cfm(conn, status);
}
unlock:
@@ -3222,10 +3237,12 @@ static void hci_conn_request_evt(struct hci_dev *hdev, void *data,
return;
}
+ hci_dev_lock(hdev);
+
if (hci_bdaddr_list_lookup(&hdev->reject_list, &ev->bdaddr,
BDADDR_BREDR)) {
hci_reject_conn(hdev, &ev->bdaddr);
- return;
+ goto unlock;
}
/* Require HCI_CONNECTABLE or an accept list entry to accept the
@@ -3237,13 +3254,11 @@ static void hci_conn_request_evt(struct hci_dev *hdev, void *data,
!hci_bdaddr_list_lookup_with_flags(&hdev->accept_list, &ev->bdaddr,
BDADDR_BREDR)) {
hci_reject_conn(hdev, &ev->bdaddr);
- return;
+ goto unlock;
}
/* Connection accepted */
- hci_dev_lock(hdev);
-
ie = hci_inquiry_cache_lookup(hdev, &ev->bdaddr);
if (ie)
memcpy(ie->data.dev_class, ev->dev_class, 3);
@@ -3255,8 +3270,7 @@ static void hci_conn_request_evt(struct hci_dev *hdev, void *data,
HCI_ROLE_SLAVE);
if (!conn) {
bt_dev_err(hdev, "no memory for new connection");
- hci_dev_unlock(hdev);
- return;
+ goto unlock;
}
}
@@ -3296,6 +3310,10 @@ static void hci_conn_request_evt(struct hci_dev *hdev, void *data,
conn->state = BT_CONNECT2;
hci_connect_cfm(conn, 0);
}
+
+ return;
+unlock:
+ hci_dev_unlock(hdev);
}
static u8 hci_to_mgmt_reason(u8 err)
@@ -4676,6 +4694,7 @@ static void hci_sync_conn_complete_evt(struct hci_dev *hdev, void *data,
{
struct hci_ev_sync_conn_complete *ev = data;
struct hci_conn *conn;
+ u8 status = ev->status;
switch (ev->link_type) {
case SCO_LINK:
@@ -4690,12 +4709,7 @@ static void hci_sync_conn_complete_evt(struct hci_dev *hdev, void *data,
return;
}
- if (__le16_to_cpu(ev->handle) > HCI_CONN_HANDLE_MAX) {
- bt_dev_err(hdev, "Ignoring HCI_Sync_Conn_Complete for invalid handle");
- return;
- }
-
- bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
+ bt_dev_dbg(hdev, "status 0x%2.2x", status);
hci_dev_lock(hdev);
@@ -4729,9 +4743,17 @@ static void hci_sync_conn_complete_evt(struct hci_dev *hdev, void *data,
goto unlock;
}
- switch (ev->status) {
+ switch (status) {
case 0x00:
conn->handle = __le16_to_cpu(ev->handle);
+ if (conn->handle > HCI_CONN_HANDLE_MAX) {
+ bt_dev_err(hdev, "Invalid handle: 0x%4.4x > 0x%4.4x",
+ conn->handle, HCI_CONN_HANDLE_MAX);
+ status = HCI_ERROR_INVALID_PARAMETERS;
+ conn->state = BT_CLOSED;
+ break;
+ }
+
conn->state = BT_CONNECTED;
conn->type = ev->link_type;
@@ -4775,8 +4797,8 @@ static void hci_sync_conn_complete_evt(struct hci_dev *hdev, void *data,
}
}
- hci_connect_cfm(conn, ev->status);
- if (ev->status)
+ hci_connect_cfm(conn, status);
+ if (status)
hci_conn_del(conn);
unlock:
@@ -5527,11 +5549,6 @@ static void le_conn_complete_evt(struct hci_dev *hdev, u8 status,
struct smp_irk *irk;
u8 addr_type;
- if (handle > HCI_CONN_HANDLE_MAX) {
- bt_dev_err(hdev, "Ignoring HCI_LE_Connection_Complete for invalid handle");
- return;
- }
-
hci_dev_lock(hdev);
/* All controllers implicitly stop advertising in the event of a
@@ -5541,6 +5558,12 @@ static void le_conn_complete_evt(struct hci_dev *hdev, u8 status,
conn = hci_lookup_le_connect(hdev);
if (!conn) {
+ /* In case of error status and there is no connection pending
+ * just unlock as there is nothing to cleanup.
+ */
+ if (status)
+ goto unlock;
+
conn = hci_conn_add(hdev, LE_LINK, bdaddr, role);
if (!conn) {
bt_dev_err(hdev, "no memory for new connection");
@@ -5603,11 +5626,19 @@ static void le_conn_complete_evt(struct hci_dev *hdev, u8 status,
conn->dst_type = ev_bdaddr_type(hdev, conn->dst_type, NULL);
- if (status) {
- hci_le_conn_failed(conn, status);
- goto unlock;
+ if (handle > HCI_CONN_HANDLE_MAX) {
+ bt_dev_err(hdev, "Invalid handle: 0x%4.4x > 0x%4.4x", handle,
+ HCI_CONN_HANDLE_MAX);
+ status = HCI_ERROR_INVALID_PARAMETERS;
}
+ /* All connection failure handling is taken care of by the
+ * hci_conn_failed function which is triggered by the HCI
+ * request completion callbacks used for connecting.
+ */
+ if (status)
+ goto unlock;
+
if (conn->dst_type == ADDR_LE_DEV_PUBLIC)
addr_type = BDADDR_LE_PUBLIC;
else
generated by cgit v1.2.3 (git 2.25.1) at 2025-03-24 07:01:03 +0000