diff options
author | Mikel Astiz <mikel.astiz@bmw-carit.de> | 2012-08-09 09:52:30 +0200 |
---|---|---|
committer | Gustavo Padovan <gustavo.padovan@collabora.co.uk> | 2012-08-21 14:54:40 -0300 |
commit | f0d6a0ea330617454032d6e2ed48759858a44427 (patch) | |
tree | d11edf124abaef7d14f39fb9d0678376800fac72 | |
parent | fa1bd91809d58b3c183611556219fafd93c08625 (diff) |
Bluetooth: mgmt: Add device disconnect reason
MGMT_EV_DEVICE_DISCONNECTED will now expose the disconnection reason to
userland, distinguishing four possible values:
0x00 Reason not known or unspecified
0x01 Connection timeout
0x02 Connection terminated by local host
0x03 Connection terminated by remote host
Note that the local/remote distinction just determines which side
terminated the low-level connection, regardless of the disconnection of
the higher-level profiles.
This can sometimes be misleading and thus must be used with care. For
example, some hardware combinations would report a locally initiated
disconnection even if the user turned Bluetooth off in the remote side.
Signed-off-by: Mikel Astiz <mikel.astiz@bmw-carit.de>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
-rw-r--r-- | include/net/bluetooth/hci_core.h | 2 | ||||
-rw-r--r-- | include/net/bluetooth/mgmt.h | 9 | ||||
-rw-r--r-- | net/bluetooth/hci_event.c | 26 | ||||
-rw-r--r-- | net/bluetooth/mgmt.c | 9 |
4 files changed, 38 insertions, 8 deletions
diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h index 7267dafd7159..1bbc1091748c 100644 --- a/include/net/bluetooth/hci_core.h +++ b/include/net/bluetooth/hci_core.h @@ -1002,7 +1002,7 @@ int mgmt_device_connected(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, u8 addr_type, u32 flags, u8 *name, u8 name_len, u8 *dev_class); int mgmt_device_disconnected(struct hci_dev *hdev, bdaddr_t *bdaddr, - u8 link_type, u8 addr_type); + u8 link_type, u8 addr_type, u8 reason); int mgmt_disconnect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, u8 addr_type, u8 status); int mgmt_connect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, diff --git a/include/net/bluetooth/mgmt.h b/include/net/bluetooth/mgmt.h index 4348ee8bda69..1b48effcd973 100644 --- a/include/net/bluetooth/mgmt.h +++ b/include/net/bluetooth/mgmt.h @@ -405,7 +405,16 @@ struct mgmt_ev_device_connected { __u8 eir[0]; } __packed; +#define MGMT_DEV_DISCONN_UNKNOWN 0x00 +#define MGMT_DEV_DISCONN_TIMEOUT 0x01 +#define MGMT_DEV_DISCONN_LOCAL_HOST 0x02 +#define MGMT_DEV_DISCONN_REMOTE 0x03 + #define MGMT_EV_DEVICE_DISCONNECTED 0x000C +struct mgmt_ev_device_disconnected { + struct mgmt_addr_info addr; + __u8 reason; +} __packed; #define MGMT_EV_CONNECT_FAILED 0x000D struct mgmt_ev_connect_failed { diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c index bfa9bcc0f5ef..48d730228c2f 100644 --- a/net/bluetooth/hci_event.c +++ b/net/bluetooth/hci_event.c @@ -29,6 +29,7 @@ #include <net/bluetooth/bluetooth.h> #include <net/bluetooth/hci_core.h> +#include <net/bluetooth/mgmt.h> /* Handle HCI Event packets */ @@ -1875,6 +1876,22 @@ static void hci_conn_request_evt(struct hci_dev *hdev, struct sk_buff *skb) } } +static u8 hci_to_mgmt_reason(u8 err) +{ + switch (err) { + case HCI_ERROR_CONNECTION_TIMEOUT: + return MGMT_DEV_DISCONN_TIMEOUT; + case HCI_ERROR_REMOTE_USER_TERM: + case HCI_ERROR_REMOTE_LOW_RESOURCES: + case HCI_ERROR_REMOTE_POWER_OFF: + return MGMT_DEV_DISCONN_REMOTE; + case HCI_ERROR_LOCAL_HOST_TERM: + return MGMT_DEV_DISCONN_LOCAL_HOST; + default: + return MGMT_DEV_DISCONN_UNKNOWN; + } +} + static void hci_disconn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb) { struct hci_ev_disconn_complete *ev = (void *) skb->data; @@ -1893,12 +1910,15 @@ static void hci_disconn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb) if (test_and_clear_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags) && (conn->type == ACL_LINK || conn->type == LE_LINK)) { - if (ev->status) + if (ev->status) { mgmt_disconnect_failed(hdev, &conn->dst, conn->type, conn->dst_type, ev->status); - else + } else { + u8 reason = hci_to_mgmt_reason(ev->reason); + mgmt_device_disconnected(hdev, &conn->dst, conn->type, - conn->dst_type); + conn->dst_type, reason); + } } if (ev->status == 0) { diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c index a3329cbd3e4d..05d4b83a0189 100644 --- a/net/bluetooth/mgmt.c +++ b/net/bluetooth/mgmt.c @@ -3077,16 +3077,17 @@ static void unpair_device_rsp(struct pending_cmd *cmd, void *data) } int mgmt_device_disconnected(struct hci_dev *hdev, bdaddr_t *bdaddr, - u8 link_type, u8 addr_type) + u8 link_type, u8 addr_type, u8 reason) { - struct mgmt_addr_info ev; + struct mgmt_ev_device_disconnected ev; struct sock *sk = NULL; int err; mgmt_pending_foreach(MGMT_OP_DISCONNECT, hdev, disconnect_rsp, &sk); - bacpy(&ev.bdaddr, bdaddr); - ev.type = link_to_bdaddr(link_type, addr_type); + bacpy(&ev.addr.bdaddr, bdaddr); + ev.addr.type = link_to_bdaddr(link_type, addr_type); + ev.reason = reason; err = mgmt_event(MGMT_EV_DEVICE_DISCONNECTED, hdev, &ev, sizeof(ev), sk); |