This patch adds a new parameter to mgmt_device_found() to inform the length of 'eir' pointer. EIR data from LE advertising report event doesn't have a fixed length as EIR data from extended inquiry result event does. We needed to change mgmt_device_found() so it copies 'eir_len' bytes instead of HCI_MAX_EIR_LENGTH. Signed-off-by: Andre Guedes <andre.guedes@xxxxxxxxxxxxx> Acked-by: Marcel Holtmann <marcel@xxxxxxxxxxxx> --- include/net/bluetooth/hci_core.h | 3 ++- net/bluetooth/hci_event.c | 9 +++++---- net/bluetooth/mgmt.c | 8 ++++++-- 3 files changed, 13 insertions(+), 7 deletions(-) diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h index 69dda9b..9da5b69 100644 --- a/include/net/bluetooth/hci_core.h +++ b/include/net/bluetooth/hci_core.h @@ -942,7 +942,8 @@ int mgmt_set_local_name_complete(struct hci_dev *hdev, u8 *name, u8 status); int mgmt_read_local_oob_data_reply_complete(struct hci_dev *hdev, u8 *hash, u8 *randomizer, u8 status); int mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, - u8 addr_type, u8 *dev_class, s8 rssi, u8 *eir); + u8 addr_type, u8 *dev_class, s8 rssi, + u8 *eir, u8 eir_len); int mgmt_remote_name(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 *name); int mgmt_start_discovery_failed(struct hci_dev *hdev, u8 status); int mgmt_stop_discovery_failed(struct hci_dev *hdev, u8 status); diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c index 0beb633..6d60fec 100644 --- a/net/bluetooth/hci_event.c +++ b/net/bluetooth/hci_event.c @@ -1448,7 +1448,7 @@ static inline void hci_inquiry_result_evt(struct hci_dev *hdev, struct sk_buff * data.ssp_mode = 0x00; hci_inquiry_cache_update(hdev, &data); mgmt_device_found(hdev, &info->bdaddr, ACL_LINK, 0x00, - info->dev_class, 0, NULL); + info->dev_class, 0, NULL, 0); } hci_dev_unlock(hdev); @@ -2458,7 +2458,7 @@ static inline void hci_inquiry_result_with_rssi_evt(struct hci_dev *hdev, struct hci_inquiry_cache_update(hdev, &data); mgmt_device_found(hdev, &info->bdaddr, ACL_LINK, 0x00, info->dev_class, info->rssi, - NULL); + NULL, 0); } } else { struct inquiry_info_with_rssi *info = (void *) (skb->data + 1); @@ -2475,7 +2475,7 @@ static inline void hci_inquiry_result_with_rssi_evt(struct hci_dev *hdev, struct hci_inquiry_cache_update(hdev, &data); mgmt_device_found(hdev, &info->bdaddr, ACL_LINK, 0x00, info->dev_class, info->rssi, - NULL); + NULL, 0); } } @@ -2617,7 +2617,8 @@ static inline void hci_extended_inquiry_result_evt(struct hci_dev *hdev, struct data.ssp_mode = 0x01; hci_inquiry_cache_update(hdev, &data); mgmt_device_found(hdev, &info->bdaddr, ACL_LINK, 0x00, - info->dev_class, info->rssi, info->data); + info->dev_class, info->rssi, + info->data, sizeof(info->data)); } hci_dev_unlock(hdev); diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c index bd77f54..b63a7d0 100644 --- a/net/bluetooth/mgmt.c +++ b/net/bluetooth/mgmt.c @@ -2397,10 +2397,14 @@ int mgmt_read_local_oob_data_reply_complete(struct hci_dev *hdev, u8 *hash, } int mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, - u8 addr_type, u8 *dev_class, s8 rssi, u8 *eir) + u8 addr_type, u8 *dev_class, s8 rssi, + u8 *eir, u8 eir_len) { struct mgmt_ev_device_found ev; + if (eir_len > sizeof(ev.eir)) + return -EINVAL; + memset(&ev, 0, sizeof(ev)); bacpy(&ev.addr.bdaddr, bdaddr); @@ -2408,7 +2412,7 @@ int mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, ev.rssi = rssi; if (eir) - memcpy(ev.eir, eir, sizeof(ev.eir)); + memcpy(ev.eir, eir, eir_len); if (dev_class) memcpy(ev.dev_class, dev_class, sizeof(ev.dev_class)); -- 1.7.7.1 -- To unsubscribe from this list: send the line "unsubscribe linux-bluetooth" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html