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[v1] Bluetooth: Return whether a connection is outbound

Message ID 20210402105437.v1.1.Id5ee0a2edda8f0902498aaeb1b6c78d062579b75@changeid
State New
Headers show
Series [v1] Bluetooth: Return whether a connection is outbound | expand

Commit Message

Yu Liu April 2, 2021, 5:54 p.m. UTC 
When an MGMT_EV_DEVICE_CONNECTED event is reported back to the user
space we will set the flags to tell if the established connection is
outbound or not. This is useful for the user space to log better metrics
and error messages.

Reviewed-by: Miao-chen Chou <mcchou@chromium.org>
Reviewed-by: Alain Michaud <alainm@chromium.org>
Signed-off-by: Yu Liu <yudiliu@google.com>
---

Changes in v1:
- Initial change

 include/net/bluetooth/mgmt.h | 2 ++
 net/bluetooth/mgmt.c         | 5 +++++
 2 files changed, 7 insertions(+)
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Patch

diff --git a/include/net/bluetooth/mgmt.h b/include/net/bluetooth/mgmt.h
index a7cffb069565..7cc724386b00 100644
--- a/include/net/bluetooth/mgmt.h
+++ b/include/net/bluetooth/mgmt.h
@@ -885,6 +885,8 @@  struct mgmt_ev_new_long_term_key {
 	struct mgmt_ltk_info key;
 } __packed;
 
+#define MGMT_DEV_CONN_INITIATED_CONNECTION 0x08
+
 #define MGMT_EV_DEVICE_CONNECTED	0x000B
 struct mgmt_ev_device_connected {
 	struct mgmt_addr_info addr;
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 09e099c419f2..77213e67e8e4 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -8774,6 +8774,11 @@  void mgmt_device_connected(struct hci_dev *hdev, struct hci_conn *conn,
 	bacpy(&ev->addr.bdaddr, &conn->dst);
 	ev->addr.type = link_to_bdaddr(conn->type, conn->dst_type);
 
+	if (conn->out)
+		flags |= MGMT_DEV_CONN_INITIATED_CONNECTION;
+	else
+		flags &= ~MGMT_DEV_CONN_INITIATED_CONNECTION;
+
 	ev->flags = __cpu_to_le32(flags);
 
 	/* We must ensure that the EIR Data fields are ordered and