From 09ae260ba452c2ed36ec295941a58cb75db213ed Mon Sep 17 00:00:00 2001 From: Johan Hedberg Date: Sun, 6 Jul 2014 13:41:15 +0300 Subject: [PATCH] Bluetooth: Use lower timeout for LE auto-connections When we establish connections as a consequence of receiving an advertising report it makes no sense to wait the normal 20 second LE connection timeout. This patch modifies the hci_connect_le function to take an extra timeout value and uses a lower 2 second timeout for the auto-connection case. This timeout is intentionally chosen to be just a bit higher than the 1.28 second timeout that High Duty Cycle Advertising uses. Signed-off-by: Johan Hedberg Signed-off-by: Marcel Holtmann --- include/net/bluetooth/hci.h | 1 + include/net/bluetooth/hci_core.h | 4 +++- net/bluetooth/hci_conn.c | 4 +++- net/bluetooth/hci_event.c | 6 +++--- net/bluetooth/l2cap_core.c | 2 +- net/bluetooth/mgmt.c | 3 ++- 6 files changed, 13 insertions(+), 7 deletions(-) diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h index 46f2458e4bc9..5481d1c8badb 100644 --- a/include/net/bluetooth/hci.h +++ b/include/net/bluetooth/hci.h @@ -238,6 +238,7 @@ enum { #define HCI_AUTO_OFF_TIMEOUT msecs_to_jiffies(2000) /* 2 seconds */ #define HCI_POWER_OFF_TIMEOUT msecs_to_jiffies(5000) /* 5 seconds */ #define HCI_LE_CONN_TIMEOUT msecs_to_jiffies(20000) /* 20 seconds */ +#define HCI_LE_AUTOCONN_TIMEOUT msecs_to_jiffies(2000) /* 2 seconds */ /* HCI data types */ #define HCI_COMMAND_PKT 0x01 diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h index 9d838a072db4..06039aae3010 100644 --- a/include/net/bluetooth/hci_core.h +++ b/include/net/bluetooth/hci_core.h @@ -385,6 +385,7 @@ struct hci_conn { __u32 passkey_notify; __u8 passkey_entered; __u16 disc_timeout; + __u16 conn_timeout; __u16 setting; __u16 le_conn_min_interval; __u16 le_conn_max_interval; @@ -703,7 +704,8 @@ void hci_chan_list_flush(struct hci_conn *conn); struct hci_chan *hci_chan_lookup_handle(struct hci_dev *hdev, __u16 handle); struct hci_conn *hci_connect_le(struct hci_dev *hdev, bdaddr_t *dst, - u8 dst_type, u8 sec_level, u8 auth_type); + u8 dst_type, u8 sec_level, u8 auth_type, + u16 conn_timeout); struct hci_conn *hci_connect_acl(struct hci_dev *hdev, bdaddr_t *dst, u8 sec_level, u8 auth_type); struct hci_conn *hci_connect_sco(struct hci_dev *hdev, int type, bdaddr_t *dst, diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c index 0d579d036833..faa032fcdaee 100644 --- a/net/bluetooth/hci_conn.c +++ b/net/bluetooth/hci_conn.c @@ -700,7 +700,8 @@ static void hci_req_directed_advertising(struct hci_request *req, } struct hci_conn *hci_connect_le(struct hci_dev *hdev, bdaddr_t *dst, - u8 dst_type, u8 sec_level, u8 auth_type) + u8 dst_type, u8 sec_level, u8 auth_type, + u16 conn_timeout) { struct hci_conn_params *params; struct hci_conn *conn; @@ -758,6 +759,7 @@ struct hci_conn *hci_connect_le(struct hci_dev *hdev, bdaddr_t *dst, conn->sec_level = BT_SECURITY_LOW; conn->pending_sec_level = sec_level; conn->auth_type = auth_type; + conn->conn_timeout = conn_timeout; hci_req_init(&req, hdev); diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c index c2ba79c8fe51..f452e44eff3c 100644 --- a/net/bluetooth/hci_event.c +++ b/net/bluetooth/hci_event.c @@ -1073,7 +1073,7 @@ static void hci_cc_le_set_adv_enable(struct hci_dev *hdev, struct sk_buff *skb) if (conn) queue_delayed_work(hdev->workqueue, &conn->le_conn_timeout, - HCI_LE_CONN_TIMEOUT); + conn->conn_timeout); } mgmt_advertising(hdev, *sent); @@ -1913,7 +1913,7 @@ static void hci_cs_le_create_conn(struct hci_dev *hdev, u8 status) if (cp->filter_policy == HCI_LE_USE_PEER_ADDR) queue_delayed_work(conn->hdev->workqueue, &conn->le_conn_timeout, - HCI_LE_CONN_TIMEOUT); + conn->conn_timeout); unlock: hci_dev_unlock(hdev); @@ -4238,7 +4238,7 @@ static bool check_pending_le_conn(struct hci_dev *hdev, bdaddr_t *addr, return false; conn = hci_connect_le(hdev, addr, addr_type, BT_SECURITY_LOW, - HCI_AT_NO_BONDING); + HCI_AT_NO_BONDING, HCI_LE_AUTOCONN_TIMEOUT); if (!IS_ERR(conn)) return true; diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c index f1f544a12c3c..a219276d9f92 100644 --- a/net/bluetooth/l2cap_core.c +++ b/net/bluetooth/l2cap_core.c @@ -7135,7 +7135,7 @@ int l2cap_chan_connect(struct l2cap_chan *chan, __le16 psm, u16 cid, dst_type = ADDR_LE_DEV_RANDOM; hcon = hci_connect_le(hdev, dst, dst_type, chan->sec_level, - auth_type); + auth_type, HCI_LE_CONN_TIMEOUT); } else { hcon = hci_connect_acl(hdev, dst, chan->sec_level, auth_type); } diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c index e253f8e1fa47..be91d55c258b 100644 --- a/net/bluetooth/mgmt.c +++ b/net/bluetooth/mgmt.c @@ -3116,7 +3116,8 @@ static int pair_device(struct sock *sk, struct hci_dev *hdev, void *data, hci_conn_params_add(hdev, &cp->addr.bdaddr, addr_type); conn = hci_connect_le(hdev, &cp->addr.bdaddr, addr_type, - sec_level, auth_type); + sec_level, auth_type, + HCI_LE_CONN_TIMEOUT); } if (IS_ERR(conn)) { -- 2.30.2