diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h index a48f71d73dc8..f00bf667ec33 100644 --- a/include/net/bluetooth/hci_core.h +++ b/include/net/bluetooth/hci_core.h @@ -211,6 +211,7 @@ struct hci_dev { __u8 dev_name[HCI_MAX_NAME_LENGTH]; __u8 short_name[HCI_MAX_SHORT_NAME_LENGTH]; __u8 eir[HCI_MAX_EIR_LENGTH]; + __u16 appearance; __u8 dev_class[3]; __u8 major_class; __u8 minor_class; diff --git a/include/net/bluetooth/mgmt.h b/include/net/bluetooth/mgmt.h index 611b243713ea..72a456bbbcd5 100644 --- a/include/net/bluetooth/mgmt.h +++ b/include/net/bluetooth/mgmt.h @@ -598,6 +598,12 @@ struct mgmt_rp_read_ext_info { __u8 eir[0]; } __packed; +#define MGMT_OP_SET_APPEARANCE 0x0043 +struct mgmt_cp_set_appearance { + __u16 appearance; +} __packed; +#define MGMT_SET_APPEARANCE_SIZE 2 + #define MGMT_EV_CMD_COMPLETE 0x0001 struct mgmt_ev_cmd_complete { __le16 opcode; diff --git a/net/bluetooth/hci_request.c b/net/bluetooth/hci_request.c index 0ce6cdd278b2..c8135680c43e 100644 --- a/net/bluetooth/hci_request.c +++ b/net/bluetooth/hci_request.c @@ -1015,6 +1015,14 @@ static u8 create_instance_scan_rsp_data(struct hci_dev *hdev, u8 instance, instance_flags = adv_instance->flags; + if ((instance_flags & MGMT_ADV_FLAG_APPEARANCE) && hdev->appearance) { + ptr[0] = 3; + ptr[1] = EIR_APPEARANCE; + put_unaligned_le16(hdev->appearance, ptr + 2); + scan_rsp_len += 4; + ptr += 4; + } + memcpy(ptr, adv_instance->scan_rsp_data, adv_instance->scan_rsp_len); diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c index 89954bb19222..78d708851208 100644 --- a/net/bluetooth/mgmt.c +++ b/net/bluetooth/mgmt.c @@ -105,6 +105,7 @@ static const u16 mgmt_commands[] = { MGMT_OP_GET_ADV_SIZE_INFO, MGMT_OP_START_LIMITED_DISCOVERY, MGMT_OP_READ_EXT_INFO, + MGMT_OP_SET_APPEARANCE, }; static const u16 mgmt_events[] = { @@ -3143,6 +3144,34 @@ failed: return err; } +static int set_appearance(struct sock *sk, struct hci_dev *hdev, void *data, + u16 len) +{ + struct mgmt_cp_set_appearance *cp = data; + u16 apperance; + int err; + + BT_DBG(""); + + apperance = le16_to_cpu(cp->appearance); + + hci_dev_lock(hdev); + + if (hdev->appearance != apperance) { + hdev->appearance = apperance; + + if (hci_dev_test_flag(hdev, HCI_LE_ADV)) + adv_expire(hdev, MGMT_ADV_FLAG_APPEARANCE); + } + + err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_SET_APPEARANCE, 0, NULL, + 0); + + hci_dev_unlock(hdev); + + return err; +} + static void read_local_oob_data_complete(struct hci_dev *hdev, u8 status, u16 opcode, struct sk_buff *skb) { @@ -5918,6 +5947,7 @@ static u32 get_supported_adv_flags(struct hci_dev *hdev) flags |= MGMT_ADV_FLAG_DISCOV; flags |= MGMT_ADV_FLAG_LIMITED_DISCOV; flags |= MGMT_ADV_FLAG_MANAGED_FLAGS; + flags |= MGMT_ADV_FLAG_APPEARANCE; flags |= MGMT_ADV_FLAG_LOCAL_NAME; if (hdev->adv_tx_power != HCI_TX_POWER_INVALID) @@ -5999,6 +6029,9 @@ static bool tlv_data_is_valid(struct hci_dev *hdev, u32 adv_flags, u8 *data, /* at least 1 byte of name should fit in */ if (adv_flags & MGMT_ADV_FLAG_LOCAL_NAME) max_len -= 3; + + if (adv_flags & MGMT_ADV_FLAG_APPEARANCE) + max_len -= 4; } if (len > max_len) @@ -6335,6 +6368,9 @@ static u8 tlv_data_max_len(u32 adv_flags, bool is_adv_data) /* at least 1 byte of name should fit in */ if (adv_flags & MGMT_ADV_FLAG_LOCAL_NAME) max_len -= 3; + + if (adv_flags & (MGMT_ADV_FLAG_APPEARANCE)) + max_len -= 4; } return max_len; @@ -6470,6 +6506,7 @@ static const struct hci_mgmt_handler mgmt_handlers[] = { { start_limited_discovery, MGMT_START_DISCOVERY_SIZE }, { read_ext_controller_info,MGMT_READ_EXT_INFO_SIZE, HCI_MGMT_UNTRUSTED }, + { set_appearance, MGMT_SET_APPEARANCE_SIZE }, }; void mgmt_index_added(struct hci_dev *hdev)