Bluetooth: Set Manufacturer data feature

Added new MGMT command to set the manufacturer data
in the BR/EDR packet.

Change-Id: I1b97854795eec10f9f8481a96709abcd0ba26b52
Signed-off-by: Sudha Bheemanna <b.sudha@samsung.com>
Signed-off-by: Amit Purwar <amit.purwar@samsung.com>
Signed-off-by: Wootak Jung <wootak.jung@samsung.com>
Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>

diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index 4541b81..016c598 100644 (file)
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -351,6 +351,10 @@ struct amp_assoc {
 
 #define HCI_MAX_PAGES  3
 
+#ifdef TIZEN_BT
+#define HCI_MAX_EIR_MANUFACTURER_DATA_LENGTH   100
+#endif
+
 struct hci_dev {
        struct list_head list;
        struct mutex    lock;
@@ -665,6 +669,8 @@ struct hci_dev {
 #ifdef TIZEN_BT
        __u8                    adv_filter_policy;
        __u8                    adv_type;
+       __u8                    manufacturer_len;
+       __u8                    manufacturer_data[HCI_MAX_EIR_MANUFACTURER_DATA_LENGTH];
 #endif
 
        int (*open)(struct hci_dev *hdev);

diff --git a/include/net/bluetooth/mgmt_tizen.h b/include/net/bluetooth/mgmt_tizen.h
index c912a69..4f24c42 100644 (file)
--- a/include/net/bluetooth/mgmt_tizen.h
+++ b/include/net/bluetooth/mgmt_tizen.h
@@ -135,6 +135,14 @@ struct mgmt_cp_le_conn_update {
 } __packed;
 /* Add LE connection parameter update procedure */
 
+/* For Set Manufacturer Data */
+#define MGMT_OP_SET_MANUFACTURER_DATA          (TIZEN_OP_CODE_BASE + 0x0e)
+struct mgmt_cp_set_manufacturer_data {
+       __u8    data[100];
+} __packed;
+#define MGMT_SET_MANUFACTURER_DATA_SIZE                100
+/* Set Manufacturer Data */
+
 /* EVENTS */
 
 /* For device name update changes */

diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 0de45a9..bbc5a4f 100644 (file)
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -8650,6 +8650,127 @@ static int le_conn_update(struct sock *sk, struct hci_dev *hdev, void *data,
        return mgmt_cmd_complete(sk, hdev->id, MGMT_OP_LE_CONN_UPDATE, 0,
                                 NULL, 0);
 }
+
+static void set_manufacturer_data_complete(struct hci_dev *hdev, u8 status,
+               u16 opcode)
+{
+       struct mgmt_cp_set_manufacturer_data *cp;
+       struct mgmt_pending_cmd *cmd;
+
+       BT_DBG("status 0x%02x", status);
+
+       hci_dev_lock(hdev);
+
+       cmd = pending_find(MGMT_OP_SET_MANUFACTURER_DATA, hdev);
+       if (!cmd)
+               goto unlock;
+
+       cp = cmd->param;
+
+       if (status)
+               mgmt_cmd_status(cmd->sk, hdev->id,
+                               MGMT_OP_SET_MANUFACTURER_DATA,
+                               mgmt_status(status));
+       else
+               mgmt_cmd_complete(cmd->sk, hdev->id,
+                                 MGMT_OP_SET_MANUFACTURER_DATA, 0,
+                                 cp, sizeof(*cp));
+
+       mgmt_pending_remove(cmd);
+
+unlock:
+       hci_dev_unlock(hdev);
+}
+
+static int set_manufacturer_data(struct sock *sk, struct hci_dev *hdev,
+               void *data, u16 len)
+{
+       struct mgmt_pending_cmd *cmd;
+       struct hci_request req;
+       struct mgmt_cp_set_manufacturer_data *cp = data;
+       u8 old_data[HCI_MAX_EIR_LENGTH] = {0, };
+       u8 old_len;
+       int err;
+
+       BT_DBG("%s", hdev->name);
+
+       if (!lmp_bredr_capable(hdev))
+               return mgmt_cmd_status(sk, hdev->id,
+                               MGMT_OP_SET_MANUFACTURER_DATA,
+                               MGMT_STATUS_NOT_SUPPORTED);
+
+       if (cp->data[0] == 0 ||
+                       cp->data[0] - 1 > sizeof(hdev->manufacturer_data))
+               return mgmt_cmd_status(sk, hdev->id,
+                               MGMT_OP_SET_MANUFACTURER_DATA,
+                               MGMT_STATUS_INVALID_PARAMS);
+
+       if (cp->data[1] != 0xFF)
+               return mgmt_cmd_status(sk, hdev->id,
+                               MGMT_OP_SET_MANUFACTURER_DATA,
+                               MGMT_STATUS_NOT_SUPPORTED);
+
+       hci_dev_lock(hdev);
+
+       if (pending_find(MGMT_OP_SET_MANUFACTURER_DATA, hdev)) {
+               err = mgmt_cmd_status(sk, hdev->id,
+                               MGMT_OP_SET_MANUFACTURER_DATA,
+                               MGMT_STATUS_BUSY);
+               goto unlocked;
+       }
+
+       cmd = mgmt_pending_add(sk, MGMT_OP_SET_MANUFACTURER_DATA, hdev, data,
+                       len);
+       if (!cmd) {
+               err = -ENOMEM;
+               goto unlocked;
+       }
+
+       hci_req_init(&req, hdev);
+
+       /* if new data is same as previous data then return command
+        * complete event
+        */
+       if (hdev->manufacturer_len == cp->data[0] - 1 &&
+           !memcmp(hdev->manufacturer_data, cp->data + 2, cp->data[0] - 1)) {
+               mgmt_pending_remove(cmd);
+               mgmt_cmd_complete(sk, hdev->id, MGMT_OP_SET_MANUFACTURER_DATA,
+                                 0, cp, sizeof(*cp));
+               err = 0;
+               goto unlocked;
+       }
+
+       old_len = hdev->manufacturer_len;
+       if (old_len > 0)
+               memcpy(old_data, hdev->manufacturer_data, old_len);
+
+       hdev->manufacturer_len = cp->data[0] - 1;
+       if (hdev->manufacturer_len > 0)
+               memcpy(hdev->manufacturer_data, cp->data + 2,
+                               hdev->manufacturer_len);
+
+       hci_update_eir_sync(hdev);
+
+       err = hci_req_run(&req, set_manufacturer_data_complete);
+       if (err < 0) {
+               mgmt_pending_remove(cmd);
+               goto failed;
+       }
+
+unlocked:
+       hci_dev_unlock(hdev);
+
+       return err;
+
+failed:
+       memset(hdev->manufacturer_data, 0x00, sizeof(hdev->manufacturer_data));
+       hdev->manufacturer_len = old_len;
+       if (hdev->manufacturer_len > 0)
+               memcpy(hdev->manufacturer_data, old_data,
+                      hdev->manufacturer_len);
+       hci_dev_unlock(hdev);
+       return err;
+}
 #endif /* TIZEN_BT */
 
 static bool ltk_is_valid(struct mgmt_ltk_info *key)
@@ -10939,6 +11060,7 @@ static const struct hci_mgmt_handler tizen_mgmt_handlers[] = {
        { stop_le_discovery,       MGMT_STOP_LE_DISCOVERY_SIZE },
        { disable_le_auto_connect, MGMT_DISABLE_LE_AUTO_CONNECT_SIZE },
        { le_conn_update,          MGMT_LE_CONN_UPDATE_SIZE },
+       { set_manufacturer_data,   MGMT_SET_MANUFACTURER_DATA_SIZE },
 };
 #endif