From d12fb05643f9b48134c7650f5a03f9729aacfde4 Mon Sep 17 00:00:00 2001 From: Jaganath Kanakkassery Date: Fri, 6 Jul 2018 17:05:30 +0530 Subject: [PATCH] Bluetooth: Introduce helpers for le conn status and complete This is done so that the helpers can be used for extended conn implementation which will be done in subsequent patch. Signed-off-by: Jaganath Kanakkassery Signed-off-by: Marcel Holtmann --- net/bluetooth/hci_event.c | 116 ++++++++++++++++++++++---------------- 1 file changed, 68 insertions(+), 48 deletions(-) diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c index 6c6fd4f55f23..14e42e157de9 100644 --- a/net/bluetooth/hci_event.c +++ b/net/bluetooth/hci_event.c @@ -1971,10 +1971,44 @@ static void hci_cs_disconnect(struct hci_dev *hdev, u8 status) hci_dev_unlock(hdev); } +static void cs_le_create_conn(struct hci_dev *hdev, bdaddr_t *peer_addr, + u8 peer_addr_type, u8 own_address_type, + u8 filter_policy) +{ + struct hci_conn *conn; + + conn = hci_conn_hash_lookup_le(hdev, peer_addr, + peer_addr_type); + if (!conn) + return; + + /* Store the initiator and responder address information which + * is needed for SMP. These values will not change during the + * lifetime of the connection. + */ + conn->init_addr_type = own_address_type; + if (own_address_type == ADDR_LE_DEV_RANDOM) + bacpy(&conn->init_addr, &hdev->random_addr); + else + bacpy(&conn->init_addr, &hdev->bdaddr); + + conn->resp_addr_type = peer_addr_type; + bacpy(&conn->resp_addr, peer_addr); + + /* We don't want the connection attempt to stick around + * indefinitely since LE doesn't have a page timeout concept + * like BR/EDR. Set a timer for any connection that doesn't use + * the white list for connecting. + */ + if (filter_policy == HCI_LE_USE_PEER_ADDR) + queue_delayed_work(conn->hdev->workqueue, + &conn->le_conn_timeout, + conn->conn_timeout); +} + static void hci_cs_le_create_conn(struct hci_dev *hdev, u8 status) { struct hci_cp_le_create_conn *cp; - struct hci_conn *conn; BT_DBG("%s status 0x%2.2x", hdev->name, status); @@ -1991,35 +2025,9 @@ static void hci_cs_le_create_conn(struct hci_dev *hdev, u8 status) hci_dev_lock(hdev); - conn = hci_conn_hash_lookup_le(hdev, &cp->peer_addr, - cp->peer_addr_type); - if (!conn) - goto unlock; + cs_le_create_conn(hdev, &cp->peer_addr, cp->peer_addr_type, + cp->own_address_type, cp->filter_policy); - /* Store the initiator and responder address information which - * is needed for SMP. These values will not change during the - * lifetime of the connection. - */ - conn->init_addr_type = cp->own_address_type; - if (cp->own_address_type == ADDR_LE_DEV_RANDOM) - bacpy(&conn->init_addr, &hdev->random_addr); - else - bacpy(&conn->init_addr, &hdev->bdaddr); - - conn->resp_addr_type = cp->peer_addr_type; - bacpy(&conn->resp_addr, &cp->peer_addr); - - /* We don't want the connection attempt to stick around - * indefinitely since LE doesn't have a page timeout concept - * like BR/EDR. Set a timer for any connection that doesn't use - * the white list for connecting. - */ - if (cp->filter_policy == HCI_LE_USE_PEER_ADDR) - queue_delayed_work(conn->hdev->workqueue, - &conn->le_conn_timeout, - conn->conn_timeout); - -unlock: hci_dev_unlock(hdev); } @@ -4551,16 +4559,15 @@ static void hci_disconn_phylink_complete_evt(struct hci_dev *hdev, } #endif -static void hci_le_conn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb) +static void le_conn_complete_evt(struct hci_dev *hdev, u8 status, + bdaddr_t *bdaddr, u8 bdaddr_type, u8 role, u16 handle, + u16 interval, u16 latency, u16 supervision_timeout) { - struct hci_ev_le_conn_complete *ev = (void *) skb->data; struct hci_conn_params *params; struct hci_conn *conn; struct smp_irk *irk; u8 addr_type; - BT_DBG("%s status 0x%2.2x", hdev->name, ev->status); - hci_dev_lock(hdev); /* All controllers implicitly stop advertising in the event of a @@ -4570,13 +4577,13 @@ static void hci_le_conn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb) conn = hci_lookup_le_connect(hdev); if (!conn) { - conn = hci_conn_add(hdev, LE_LINK, &ev->bdaddr, ev->role); + conn = hci_conn_add(hdev, LE_LINK, bdaddr, role); if (!conn) { bt_dev_err(hdev, "no memory for new connection"); goto unlock; } - conn->dst_type = ev->bdaddr_type; + conn->dst_type = bdaddr_type; /* If we didn't have a hci_conn object previously * but we're in master role this must be something @@ -4587,8 +4594,8 @@ static void hci_le_conn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb) * initiator address based on the HCI_PRIVACY flag. */ if (conn->out) { - conn->resp_addr_type = ev->bdaddr_type; - bacpy(&conn->resp_addr, &ev->bdaddr); + conn->resp_addr_type = bdaddr_type; + bacpy(&conn->resp_addr, bdaddr); if (hci_dev_test_flag(hdev, HCI_PRIVACY)) { conn->init_addr_type = ADDR_LE_DEV_RANDOM; bacpy(&conn->init_addr, &hdev->rpa); @@ -4612,8 +4619,8 @@ static void hci_le_conn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb) else bacpy(&conn->resp_addr, &hdev->bdaddr); - conn->init_addr_type = ev->bdaddr_type; - bacpy(&conn->init_addr, &ev->bdaddr); + conn->init_addr_type = bdaddr_type; + bacpy(&conn->init_addr, bdaddr); /* For incoming connections, set the default minimum * and maximum connection interval. They will be used @@ -4639,8 +4646,8 @@ static void hci_le_conn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb) conn->dst_type = irk->addr_type; } - if (ev->status) { - hci_le_conn_failed(conn, ev->status); + if (status) { + hci_le_conn_failed(conn, status); goto unlock; } @@ -4659,17 +4666,17 @@ static void hci_le_conn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb) mgmt_device_connected(hdev, conn, 0, NULL, 0); conn->sec_level = BT_SECURITY_LOW; - conn->handle = __le16_to_cpu(ev->handle); + conn->handle = handle; conn->state = BT_CONFIG; - conn->le_conn_interval = le16_to_cpu(ev->interval); - conn->le_conn_latency = le16_to_cpu(ev->latency); - conn->le_supv_timeout = le16_to_cpu(ev->supervision_timeout); + conn->le_conn_interval = interval; + conn->le_conn_latency = latency; + conn->le_supv_timeout = supervision_timeout; hci_debugfs_create_conn(conn); hci_conn_add_sysfs(conn); - if (!ev->status) { + if (!status) { /* The remote features procedure is defined for master * role only. So only in case of an initiated connection * request the remote features. @@ -4691,10 +4698,10 @@ static void hci_le_conn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb) hci_conn_hold(conn); } else { conn->state = BT_CONNECTED; - hci_connect_cfm(conn, ev->status); + hci_connect_cfm(conn, status); } } else { - hci_connect_cfm(conn, ev->status); + hci_connect_cfm(conn, status); } params = hci_pend_le_action_lookup(&hdev->pend_le_conns, &conn->dst, @@ -4713,6 +4720,19 @@ static void hci_le_conn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb) hci_dev_unlock(hdev); } +static void hci_le_conn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb) +{ + struct hci_ev_le_conn_complete *ev = (void *) skb->data; + + BT_DBG("%s status 0x%2.2x", hdev->name, ev->status); + + le_conn_complete_evt(hdev, ev->status, &ev->bdaddr, ev->bdaddr_type, + ev->role, le16_to_cpu(ev->handle), + le16_to_cpu(ev->interval), + le16_to_cpu(ev->latency), + le16_to_cpu(ev->supervision_timeout)); +} + static void hci_le_conn_update_complete_evt(struct hci_dev *hdev, struct sk_buff *skb) {