This patch implements support for the timeout parameter of the
Add Advertising command.
Signed-off-by: Arman Uguray <armansito@xxxxxxxxxxxx>
---
include/net/bluetooth/hci_core.h | 2 +
net/bluetooth/mgmt.c | 101 +++++++++++++++++++++++++++++++--------
2 files changed, 83 insertions(+), 20 deletions(-)
diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index 2d853d8..f97ea79 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -156,8 +156,10 @@ struct oob_data {
};
struct adv_info {
+ struct delayed_work timeout_exp;
__u8 instance;
__u32 flags;
+ __u16 timeout;
__u16 adv_data_len;
__u8 adv_data[HCI_MAX_AD_LENGTH];
__u16 scan_rsp_len;
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 02bb42f..9af5a88 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -1307,6 +1307,49 @@ static bool hci_stop_discovery(struct hci_request *req)
return false;
}
+static void advertising_added(struct sock *sk, struct hci_dev *hdev,
+ u8 instance)
+{
+ struct mgmt_ev_advertising_added ev;
+
+ ev.instance = instance;
+
+ mgmt_event(MGMT_EV_ADVERTISING_ADDED, hdev, &ev, sizeof(ev), sk);
+}
+
+static void advertising_removed(struct sock *sk, struct hci_dev *hdev,
+ u8 instance)
+{
+ struct mgmt_ev_advertising_removed ev;
+
+ ev.instance = instance;
+
+ mgmt_event(MGMT_EV_ADVERTISING_REMOVED, hdev, &ev, sizeof(ev), sk);
+}
+
+static void clear_adv_instance(struct hci_dev *hdev)
+{
+ struct hci_request req;
+
+ if (!hci_dev_test_flag(hdev, HCI_ADVERTISING_INSTANCE))
+ return;
+
+ if (hdev->adv_instance.timeout)
+ cancel_delayed_work(&hdev->adv_instance.timeout_exp);
+
+ memset(&hdev->adv_instance, 0, sizeof(hdev->adv_instance));
+ advertising_removed(NULL, hdev, 1);
+ hci_dev_clear_flag(hdev, HCI_ADVERTISING_INSTANCE);
+
+ if (!hdev_is_powered(hdev) ||
+ hci_dev_test_flag(hdev, HCI_ADVERTISING))
+ return;
+
+ hci_req_init(&req, hdev);
+ disable_advertising(&req);
+ hci_req_run(&req, NULL);
+}
+
static int clean_up_hci_state(struct hci_dev *hdev)
{
struct hci_request req;
@@ -1322,6 +1365,9 @@ static int clean_up_hci_state(struct hci_dev *hdev)
hci_req_add(&req, HCI_OP_WRITE_SCAN_ENABLE, 1, &scan);
}
+ if (hdev->adv_instance.timeout)
+ clear_adv_instance(hdev);
+
if (hci_dev_test_flag(hdev, HCI_LE_ADV))
disable_advertising(&req);
@@ -6446,26 +6492,6 @@ static bool tlv_data_is_valid(struct hci_dev *hdev, u32 adv_flags, u8 *data,
return true;
}
-static void advertising_added(struct sock *sk, struct hci_dev *hdev,
- u8 instance)
-{
- struct mgmt_ev_advertising_added ev;
-
- ev.instance = instance;
-
- mgmt_event(MGMT_EV_ADVERTISING_ADDED, hdev, &ev, sizeof(ev), sk);
-}
-
-static void advertising_removed(struct sock *sk, struct hci_dev *hdev,
- u8 instance)
-{
- struct mgmt_ev_advertising_removed ev;
-
- ev.instance = instance;
-
- mgmt_event(MGMT_EV_ADVERTISING_REMOVED, hdev, &ev, sizeof(ev), sk);
-}
-
static void add_advertising_complete(struct hci_dev *hdev, u8 status,
u16 opcode)
{
@@ -6502,6 +6528,18 @@ unlock:
hci_dev_unlock(hdev);
}
+static void adv_timeout_expired(struct work_struct *work)
+{
+ struct hci_dev *hdev = container_of(work, struct hci_dev,
+ adv_instance.timeout_exp.work);
+
+ hdev->adv_instance.timeout = 0;
+
+ hci_dev_lock(hdev);
+ clear_adv_instance(hdev);
+ hci_dev_unlock(hdev);
+}
+
static int add_advertising(struct sock *sk, struct hci_dev *hdev,
void *data, u16 data_len)
{
@@ -6509,6 +6547,7 @@ static int add_advertising(struct sock *sk, struct hci_dev *hdev,
struct mgmt_rp_add_advertising rp;
u32 flags;
u8 status;
+ u16 timeout;
int err;
struct mgmt_pending_cmd *cmd;
struct hci_request req;
@@ -6521,6 +6560,7 @@ static int add_advertising(struct sock *sk, struct hci_dev *hdev,
status);
flags = __le32_to_cpu(cp->flags);
+ timeout = __le16_to_cpu(cp->timeout);
/* The current implementation only supports adding one instance and
* doesn't support flags.
@@ -6531,6 +6571,12 @@ static int add_advertising(struct sock *sk, struct hci_dev *hdev,
hci_dev_lock(hdev);
+ if (timeout && !hdev_is_powered(hdev)) {
+ err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_ADD_ADVERTISING,
+ MGMT_STATUS_REJECTED);
+ goto unlock;
+ }
+
if (pending_find(MGMT_OP_ADD_ADVERTISING, hdev) ||
pending_find(MGMT_OP_REMOVE_ADVERTISING, hdev) ||
pending_find(MGMT_OP_SET_LE, hdev)) {
@@ -6547,6 +6593,8 @@ static int add_advertising(struct sock *sk, struct hci_dev *hdev,
goto unlock;
}
+ INIT_DELAYED_WORK(&hdev->adv_instance.timeout_exp, adv_timeout_expired);
+
hdev->adv_instance.flags = flags;
hdev->adv_instance.adv_data_len = cp->adv_data_len;
hdev->adv_instance.scan_rsp_len = cp->scan_rsp_len;
@@ -6558,6 +6606,16 @@ static int add_advertising(struct sock *sk, struct hci_dev *hdev,
memcpy(hdev->adv_instance.scan_rsp_data,
cp->data + cp->adv_data_len, cp->scan_rsp_len);
+ if (hdev->adv_instance.timeout)
+ cancel_delayed_work(&hdev->adv_instance.timeout_exp);
+
+ hdev->adv_instance.timeout = timeout;
+
+ if (timeout)
+ queue_delayed_work(hdev->workqueue,
+ &hdev->adv_instance.timeout_exp,
+ msecs_to_jiffies(timeout * 1000));
+
if (!hci_dev_test_and_set_flag(hdev, HCI_ADVERTISING_INSTANCE))
advertising_added(sk, hdev, 1);
@@ -6660,6 +6718,9 @@ static int remove_advertising(struct sock *sk, struct hci_dev *hdev,
goto unlock;
}
+ if (hdev->adv_instance.timeout)
+ cancel_delayed_work(&hdev->adv_instance.timeout_exp);
+
memset(&hdev->adv_instance, 0, sizeof(hdev->adv_instance));
advertising_removed(sk, hdev, 1);
--
2.2.0.rc0.207.ga3a616c
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