| // SPDX-License-Identifier: GPL-2.0-only |
| |
| /* |
| * Copyright (C) 2020 Google Corporation |
| */ |
| |
| #include <net/bluetooth/bluetooth.h> |
| #include <net/bluetooth/hci_core.h> |
| #include <net/bluetooth/mgmt.h> |
| |
| #include "mgmt_util.h" |
| #include "mgmt_config.h" |
| |
| #define HDEV_PARAM_U16(_param_code_, _param_name_) \ |
| { \ |
| { cpu_to_le16(_param_code_), sizeof(__u16) }, \ |
| { cpu_to_le16(hdev->_param_name_) } \ |
| } |
| |
| #define HDEV_PARAM_U16_JIFFIES_TO_MSECS(_param_code_, _param_name_) \ |
| { \ |
| { cpu_to_le16(_param_code_), sizeof(__u16) }, \ |
| { cpu_to_le16(jiffies_to_msecs(hdev->_param_name_)) } \ |
| } |
| |
| int read_def_system_config(struct sock *sk, struct hci_dev *hdev, void *data, |
| u16 data_len) |
| { |
| struct { |
| struct mgmt_tlv entry; |
| union { |
| /* This is a simplification for now since all values |
| * are 16 bits. In the future, this code may need |
| * refactoring to account for variable length values |
| * and properly calculate the required buffer size. |
| */ |
| __le16 value; |
| }; |
| } __packed params[] = { |
| /* Please see mgmt-api.txt for documentation of these values */ |
| HDEV_PARAM_U16(0x0000, def_page_scan_type), |
| HDEV_PARAM_U16(0x0001, def_page_scan_int), |
| HDEV_PARAM_U16(0x0002, def_page_scan_window), |
| HDEV_PARAM_U16(0x0003, def_inq_scan_type), |
| HDEV_PARAM_U16(0x0004, def_inq_scan_int), |
| HDEV_PARAM_U16(0x0005, def_inq_scan_window), |
| HDEV_PARAM_U16(0x0006, def_br_lsto), |
| HDEV_PARAM_U16(0x0007, def_page_timeout), |
| HDEV_PARAM_U16(0x0008, sniff_min_interval), |
| HDEV_PARAM_U16(0x0009, sniff_max_interval), |
| HDEV_PARAM_U16(0x000a, le_adv_min_interval), |
| HDEV_PARAM_U16(0x000b, le_adv_max_interval), |
| HDEV_PARAM_U16(0x000c, def_multi_adv_rotation_duration), |
| HDEV_PARAM_U16(0x000d, le_scan_interval), |
| HDEV_PARAM_U16(0x000e, le_scan_window), |
| HDEV_PARAM_U16(0x000f, le_scan_int_suspend), |
| HDEV_PARAM_U16(0x0010, le_scan_window_suspend), |
| HDEV_PARAM_U16(0x0011, le_scan_int_discovery), |
| HDEV_PARAM_U16(0x0012, le_scan_window_discovery), |
| HDEV_PARAM_U16(0x0013, le_scan_int_adv_monitor), |
| HDEV_PARAM_U16(0x0014, le_scan_window_adv_monitor), |
| HDEV_PARAM_U16(0x0015, le_scan_int_connect), |
| HDEV_PARAM_U16(0x0016, le_scan_window_connect), |
| HDEV_PARAM_U16(0x0017, le_conn_min_interval), |
| HDEV_PARAM_U16(0x0018, le_conn_max_interval), |
| HDEV_PARAM_U16(0x0019, le_conn_latency), |
| HDEV_PARAM_U16(0x001a, le_supv_timeout), |
| HDEV_PARAM_U16_JIFFIES_TO_MSECS(0x001b, |
| def_le_autoconnect_timeout), |
| }; |
| struct mgmt_rp_read_def_system_config *rp = (void *)params; |
| |
| bt_dev_dbg(hdev, "sock %p", sk); |
| |
| return mgmt_cmd_complete(sk, hdev->id, |
| MGMT_OP_READ_DEF_SYSTEM_CONFIG, |
| 0, rp, sizeof(params)); |
| } |
| |
| #define TO_TLV(x) ((struct mgmt_tlv *)(x)) |
| #define TLV_GET_LE16(tlv) le16_to_cpu(*((__le16 *)(TO_TLV(tlv)->value))) |
| |
| int set_def_system_config(struct sock *sk, struct hci_dev *hdev, void *data, |
| u16 data_len) |
| { |
| u16 buffer_left = data_len; |
| u8 *buffer = data; |
| |
| if (buffer_left < sizeof(struct mgmt_tlv)) { |
| return mgmt_cmd_status(sk, hdev->id, |
| MGMT_OP_SET_DEF_SYSTEM_CONFIG, |
| MGMT_STATUS_INVALID_PARAMS); |
| } |
| |
| /* First pass to validate the tlv */ |
| while (buffer_left >= sizeof(struct mgmt_tlv)) { |
| const u8 len = TO_TLV(buffer)->length; |
| const u16 exp_len = sizeof(struct mgmt_tlv) + |
| len; |
| const u16 type = le16_to_cpu(TO_TLV(buffer)->type); |
| |
| if (buffer_left < exp_len) { |
| bt_dev_warn(hdev, "invalid len left %d, exp >= %d", |
| buffer_left, exp_len); |
| |
| return mgmt_cmd_status(sk, hdev->id, |
| MGMT_OP_SET_DEF_SYSTEM_CONFIG, |
| MGMT_STATUS_INVALID_PARAMS); |
| } |
| |
| /* Please see mgmt-api.txt for documentation of these values */ |
| switch (type) { |
| case 0x0000: |
| case 0x0001: |
| case 0x0002: |
| case 0x0003: |
| case 0x0004: |
| case 0x0005: |
| case 0x0006: |
| case 0x0007: |
| case 0x0008: |
| case 0x0009: |
| case 0x000a: |
| case 0x000b: |
| case 0x000c: |
| case 0x000d: |
| case 0x000e: |
| case 0x000f: |
| case 0x0010: |
| case 0x0011: |
| case 0x0012: |
| case 0x0013: |
| case 0x0014: |
| case 0x0015: |
| case 0x0016: |
| case 0x0017: |
| case 0x0018: |
| case 0x0019: |
| case 0x001a: |
| case 0x001b: |
| if (len != sizeof(u16)) { |
| bt_dev_warn(hdev, "invalid length %d, exp %zu for type %d", |
| len, sizeof(u16), type); |
| |
| return mgmt_cmd_status(sk, hdev->id, |
| MGMT_OP_SET_DEF_SYSTEM_CONFIG, |
| MGMT_STATUS_INVALID_PARAMS); |
| } |
| break; |
| default: |
| bt_dev_warn(hdev, "unsupported parameter %u", type); |
| break; |
| } |
| |
| buffer_left -= exp_len; |
| buffer += exp_len; |
| } |
| |
| buffer_left = data_len; |
| buffer = data; |
| while (buffer_left >= sizeof(struct mgmt_tlv)) { |
| const u8 len = TO_TLV(buffer)->length; |
| const u16 exp_len = sizeof(struct mgmt_tlv) + |
| len; |
| const u16 type = le16_to_cpu(TO_TLV(buffer)->type); |
| |
| switch (type) { |
| case 0x0000: |
| hdev->def_page_scan_type = TLV_GET_LE16(buffer); |
| break; |
| case 0x0001: |
| hdev->def_page_scan_int = TLV_GET_LE16(buffer); |
| break; |
| case 0x0002: |
| hdev->def_page_scan_window = TLV_GET_LE16(buffer); |
| break; |
| case 0x0003: |
| hdev->def_inq_scan_type = TLV_GET_LE16(buffer); |
| break; |
| case 0x0004: |
| hdev->def_inq_scan_int = TLV_GET_LE16(buffer); |
| break; |
| case 0x0005: |
| hdev->def_inq_scan_window = TLV_GET_LE16(buffer); |
| break; |
| case 0x0006: |
| hdev->def_br_lsto = TLV_GET_LE16(buffer); |
| break; |
| case 0x0007: |
| hdev->def_page_timeout = TLV_GET_LE16(buffer); |
| break; |
| case 0x0008: |
| hdev->sniff_min_interval = TLV_GET_LE16(buffer); |
| break; |
| case 0x0009: |
| hdev->sniff_max_interval = TLV_GET_LE16(buffer); |
| break; |
| case 0x000a: |
| hdev->le_adv_min_interval = TLV_GET_LE16(buffer); |
| break; |
| case 0x000b: |
| hdev->le_adv_max_interval = TLV_GET_LE16(buffer); |
| break; |
| case 0x000c: |
| hdev->def_multi_adv_rotation_duration = |
| TLV_GET_LE16(buffer); |
| break; |
| case 0x000d: |
| hdev->le_scan_interval = TLV_GET_LE16(buffer); |
| break; |
| case 0x000e: |
| hdev->le_scan_window = TLV_GET_LE16(buffer); |
| break; |
| case 0x000f: |
| hdev->le_scan_int_suspend = TLV_GET_LE16(buffer); |
| break; |
| case 0x0010: |
| hdev->le_scan_window_suspend = TLV_GET_LE16(buffer); |
| break; |
| case 0x0011: |
| hdev->le_scan_int_discovery = TLV_GET_LE16(buffer); |
| break; |
| case 0x00012: |
| hdev->le_scan_window_discovery = TLV_GET_LE16(buffer); |
| break; |
| case 0x00013: |
| hdev->le_scan_int_adv_monitor = TLV_GET_LE16(buffer); |
| break; |
| case 0x00014: |
| hdev->le_scan_window_adv_monitor = TLV_GET_LE16(buffer); |
| break; |
| case 0x00015: |
| hdev->le_scan_int_connect = TLV_GET_LE16(buffer); |
| break; |
| case 0x00016: |
| hdev->le_scan_window_connect = TLV_GET_LE16(buffer); |
| break; |
| case 0x00017: |
| hdev->le_conn_min_interval = TLV_GET_LE16(buffer); |
| break; |
| case 0x00018: |
| hdev->le_conn_max_interval = TLV_GET_LE16(buffer); |
| break; |
| case 0x00019: |
| hdev->le_conn_latency = TLV_GET_LE16(buffer); |
| break; |
| case 0x0001a: |
| hdev->le_supv_timeout = TLV_GET_LE16(buffer); |
| break; |
| case 0x0001b: |
| hdev->def_le_autoconnect_timeout = |
| msecs_to_jiffies(TLV_GET_LE16(buffer)); |
| break; |
| default: |
| bt_dev_warn(hdev, "unsupported parameter %u", type); |
| break; |
| } |
| |
| buffer_left -= exp_len; |
| buffer += exp_len; |
| } |
| |
| return mgmt_cmd_complete(sk, hdev->id, |
| MGMT_OP_SET_DEF_SYSTEM_CONFIG, 0, NULL, 0); |
| } |
| |
| int read_def_runtime_config(struct sock *sk, struct hci_dev *hdev, void *data, |
| u16 data_len) |
| { |
| bt_dev_dbg(hdev, "sock %p", sk); |
| |
| return mgmt_cmd_complete(sk, hdev->id, |
| MGMT_OP_READ_DEF_RUNTIME_CONFIG, 0, NULL, 0); |
| } |
| |
| int set_def_runtime_config(struct sock *sk, struct hci_dev *hdev, void *data, |
| u16 data_len) |
| { |
| bt_dev_dbg(hdev, "sock %p", sk); |
| |
| return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_DEF_SYSTEM_CONFIG, |
| MGMT_STATUS_INVALID_PARAMS); |
| } |
