[PATCH v2] bluetooth: Adding a configurable autoconnect timeout

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This patch adds a configurable LE autoconnect timeout.

Signed-off-by: Alain Michaud <alainm@xxxxxxxxxxxx>
---

Changes in v1:
Fixing longer than 80 char line.

 include/net/bluetooth/hci_core.h |  1 +
 net/bluetooth/hci_core.c         |  1 +
 net/bluetooth/hci_event.c        |  2 +-
 net/bluetooth/hci_request.c      |  4 ++--
 net/bluetooth/mgmt_config.c      | 13 +++++++++++++
 5 files changed, 18 insertions(+), 3 deletions(-)

diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index 0d5dbb6cb5a0..f8e800479608 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -340,6 +340,7 @@ struct hci_dev {
 	__u16		def_br_lsto;
 	__u16		def_page_timeout;
 	__u16		def_multi_adv_rotation_duration;
+	__u16		def_le_autoconnect_timeout;
 
 	__u16		pkt_type;
 	__u16		esco_type;
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index 4f1052a7c488..73fb0843fb89 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -3422,6 +3422,7 @@ struct hci_dev *hci_alloc_dev(void)
 	hdev->le_rx_def_phys = HCI_LE_SET_PHY_1M;
 	hdev->le_num_of_adv_sets = HCI_MAX_ADV_INSTANCES;
 	hdev->def_multi_adv_rotation_duration = HCI_DEFAULT_ADV_DURATION;
+	hdev->def_le_autoconnect_timeout = HCI_LE_AUTOCONN_TIMEOUT;
 
 	hdev->rpa_timeout = HCI_DEFAULT_RPA_TIMEOUT;
 	hdev->discov_interleaved_timeout = DISCOV_INTERLEAVED_TIMEOUT;
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index cfeaee347db3..beb9bb1da0ba 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -5319,7 +5319,7 @@ static struct hci_conn *check_pending_le_conn(struct hci_dev *hdev,
 	}
 
 	conn = hci_connect_le(hdev, addr, addr_type, BT_SECURITY_LOW,
-			      HCI_LE_AUTOCONN_TIMEOUT, HCI_ROLE_MASTER,
+			      hdev->def_le_autoconnect_timeout, HCI_ROLE_MASTER,
 			      direct_rpa);
 	if (!IS_ERR(conn)) {
 		/* If HCI_AUTO_CONN_EXPLICIT is set, conn is already owned
diff --git a/net/bluetooth/hci_request.c b/net/bluetooth/hci_request.c
index 04f846958ad6..9b011c539281 100644
--- a/net/bluetooth/hci_request.c
+++ b/net/bluetooth/hci_request.c
@@ -2791,8 +2791,8 @@ static void start_discovery(struct hci_dev *hdev, u8 *status)
 			 * to do BR/EDR inquiry.
 			 */
 			hci_req_sync(hdev, interleaved_discov,
-				     hdev->le_scan_int_discovery * 2, HCI_CMD_TIMEOUT,
-				     status);
+				     hdev->le_scan_int_discovery * 2,
+				     HCI_CMD_TIMEOUT, status);
 			break;
 		}
 
diff --git a/net/bluetooth/mgmt_config.c b/net/bluetooth/mgmt_config.c
index f6dfbe93542c..0ff77ef05fc5 100644
--- a/net/bluetooth/mgmt_config.c
+++ b/net/bluetooth/mgmt_config.c
@@ -17,6 +17,12 @@
 	{ cpu_to_le16(hdev->_param_name_) } \
 }
 
+#define HDEV_PARAM_U16_JIFFIES_TO_MSECS(_param_code_, _param_name_) \
+{ \
+	{ cpu_to_le16(_param_code_), sizeof(__u16) }, \
+	{ cpu_to_le16(jiffies_to_msecs(hdev->_param_name_)) } \
+}
+
 int read_def_system_config(struct sock *sk, struct hci_dev *hdev, void *data,
 			   u16 data_len)
 {
@@ -59,6 +65,8 @@ int read_def_system_config(struct sock *sk, struct hci_dev *hdev, void *data,
 		HDEV_PARAM_U16(0x0018, le_conn_max_interval),
 		HDEV_PARAM_U16(0x0019, le_conn_latency),
 		HDEV_PARAM_U16(0x001a, le_supv_timeout),
+		HDEV_PARAM_U16_JIFFIES_TO_MSECS(0x001b,
+						def_le_autoconnect_timeout),
 	};
 	struct mgmt_rp_read_def_system_config *rp = (void *)params;
 
@@ -129,6 +137,7 @@ int set_def_system_config(struct sock *sk, struct hci_dev *hdev, void *data,
 		case 0x0018:
 		case 0x0019:
 		case 0x001a:
+		case 0x001b:
 			if (len != sizeof(u16)) {
 				bt_dev_warn(hdev, "invalid length %d, exp %zu for type %d",
 					    len, sizeof(u16), type);
@@ -238,6 +247,10 @@ int set_def_system_config(struct sock *sk, struct hci_dev *hdev, void *data,
 		case 0x0001a:
 			hdev->le_supv_timeout = TLV_GET_LE16(buffer);
 			break;
+		case 0x0001b:
+			hdev->def_le_autoconnect_timeout =
+					msecs_to_jiffies(TLV_GET_LE16(buffer));
+			break;
 		default:
 			bt_dev_warn(hdev, "unsupported parameter %u", type);
 			break;
-- 
2.27.0.290.gba653c62da-goog




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