1 // SPDX-License-Identifier: GPL-2.0-only
4 * Copyright (C) 2020 Google Corporation
7 #include <net/bluetooth/bluetooth.h>
8 #include <net/bluetooth/hci_core.h>
9 #include <net/bluetooth/mgmt.h>
11 #include "mgmt_util.h"
12 #include "mgmt_config.h"
14 #define HDEV_PARAM_U16(_param_code_, _param_name_) \
16 { cpu_to_le16(_param_code_), sizeof(__u16) }, \
17 { cpu_to_le16(hdev->_param_name_) } \
20 #define HDEV_PARAM_U16_JIFFIES_TO_MSECS(_param_code_, _param_name_) \
22 { cpu_to_le16(_param_code_), sizeof(__u16) }, \
23 { cpu_to_le16(jiffies_to_msecs(hdev->_param_name_)) } \
26 int read_def_system_config(struct sock *sk, struct hci_dev *hdev, void *data,
30 struct mgmt_tlv entry;
32 /* This is a simplification for now since all values
33 * are 16 bits. In the future, this code may need
34 * refactoring to account for variable length values
35 * and properly calculate the required buffer size.
39 } __packed params[] = {
40 /* Please see mgmt-api.txt for documentation of these values */
41 HDEV_PARAM_U16(0x0000, def_page_scan_type),
42 HDEV_PARAM_U16(0x0001, def_page_scan_int),
43 HDEV_PARAM_U16(0x0002, def_page_scan_window),
44 HDEV_PARAM_U16(0x0003, def_inq_scan_type),
45 HDEV_PARAM_U16(0x0004, def_inq_scan_int),
46 HDEV_PARAM_U16(0x0005, def_inq_scan_window),
47 HDEV_PARAM_U16(0x0006, def_br_lsto),
48 HDEV_PARAM_U16(0x0007, def_page_timeout),
49 HDEV_PARAM_U16(0x0008, sniff_min_interval),
50 HDEV_PARAM_U16(0x0009, sniff_max_interval),
51 HDEV_PARAM_U16(0x000a, le_adv_min_interval),
52 HDEV_PARAM_U16(0x000b, le_adv_max_interval),
53 HDEV_PARAM_U16(0x000c, def_multi_adv_rotation_duration),
54 HDEV_PARAM_U16(0x000d, le_scan_interval),
55 HDEV_PARAM_U16(0x000e, le_scan_window),
56 HDEV_PARAM_U16(0x000f, le_scan_int_suspend),
57 HDEV_PARAM_U16(0x0010, le_scan_window_suspend),
58 HDEV_PARAM_U16(0x0011, le_scan_int_discovery),
59 HDEV_PARAM_U16(0x0012, le_scan_window_discovery),
60 HDEV_PARAM_U16(0x0013, le_scan_int_adv_monitor),
61 HDEV_PARAM_U16(0x0014, le_scan_window_adv_monitor),
62 HDEV_PARAM_U16(0x0015, le_scan_int_connect),
63 HDEV_PARAM_U16(0x0016, le_scan_window_connect),
64 HDEV_PARAM_U16(0x0017, le_conn_min_interval),
65 HDEV_PARAM_U16(0x0018, le_conn_max_interval),
66 HDEV_PARAM_U16(0x0019, le_conn_latency),
67 HDEV_PARAM_U16(0x001a, le_supv_timeout),
68 HDEV_PARAM_U16_JIFFIES_TO_MSECS(0x001b,
69 def_le_autoconnect_timeout),
70 HDEV_PARAM_U16(0x001d, advmon_allowlist_duration),
71 HDEV_PARAM_U16(0x001e, advmon_no_filter_duration),
73 struct mgmt_rp_read_def_system_config *rp = (void *)params;
75 bt_dev_dbg(hdev, "sock %p", sk);
77 return mgmt_cmd_complete(sk, hdev->id,
78 MGMT_OP_READ_DEF_SYSTEM_CONFIG,
79 0, rp, sizeof(params));
82 #define TO_TLV(x) ((struct mgmt_tlv *)(x))
83 #define TLV_GET_LE16(tlv) le16_to_cpu(*((__le16 *)(TO_TLV(tlv)->value)))
85 int set_def_system_config(struct sock *sk, struct hci_dev *hdev, void *data,
88 u16 buffer_left = data_len;
91 if (buffer_left < sizeof(struct mgmt_tlv)) {
92 return mgmt_cmd_status(sk, hdev->id,
93 MGMT_OP_SET_DEF_SYSTEM_CONFIG,
94 MGMT_STATUS_INVALID_PARAMS);
97 /* First pass to validate the tlv */
98 while (buffer_left >= sizeof(struct mgmt_tlv)) {
99 const u8 len = TO_TLV(buffer)->length;
100 const u16 exp_len = sizeof(struct mgmt_tlv) +
102 const u16 type = le16_to_cpu(TO_TLV(buffer)->type);
104 if (buffer_left < exp_len) {
105 bt_dev_warn(hdev, "invalid len left %d, exp >= %d",
106 buffer_left, exp_len);
108 return mgmt_cmd_status(sk, hdev->id,
109 MGMT_OP_SET_DEF_SYSTEM_CONFIG,
110 MGMT_STATUS_INVALID_PARAMS);
113 /* Please see mgmt-api.txt for documentation of these values */
145 if (len != sizeof(u16)) {
146 bt_dev_warn(hdev, "invalid length %d, exp %zu for type %d",
147 len, sizeof(u16), type);
149 return mgmt_cmd_status(sk, hdev->id,
150 MGMT_OP_SET_DEF_SYSTEM_CONFIG,
151 MGMT_STATUS_INVALID_PARAMS);
155 bt_dev_warn(hdev, "unsupported parameter %u", type);
159 buffer_left -= exp_len;
163 buffer_left = data_len;
165 while (buffer_left >= sizeof(struct mgmt_tlv)) {
166 const u8 len = TO_TLV(buffer)->length;
167 const u16 exp_len = sizeof(struct mgmt_tlv) +
169 const u16 type = le16_to_cpu(TO_TLV(buffer)->type);
173 hdev->def_page_scan_type = TLV_GET_LE16(buffer);
176 hdev->def_page_scan_int = TLV_GET_LE16(buffer);
179 hdev->def_page_scan_window = TLV_GET_LE16(buffer);
182 hdev->def_inq_scan_type = TLV_GET_LE16(buffer);
185 hdev->def_inq_scan_int = TLV_GET_LE16(buffer);
188 hdev->def_inq_scan_window = TLV_GET_LE16(buffer);
191 hdev->def_br_lsto = TLV_GET_LE16(buffer);
194 hdev->def_page_timeout = TLV_GET_LE16(buffer);
197 hdev->sniff_min_interval = TLV_GET_LE16(buffer);
200 hdev->sniff_max_interval = TLV_GET_LE16(buffer);
203 hdev->le_adv_min_interval = TLV_GET_LE16(buffer);
206 hdev->le_adv_max_interval = TLV_GET_LE16(buffer);
209 hdev->def_multi_adv_rotation_duration =
210 TLV_GET_LE16(buffer);
213 hdev->le_scan_interval = TLV_GET_LE16(buffer);
216 hdev->le_scan_window = TLV_GET_LE16(buffer);
219 hdev->le_scan_int_suspend = TLV_GET_LE16(buffer);
222 hdev->le_scan_window_suspend = TLV_GET_LE16(buffer);
225 hdev->le_scan_int_discovery = TLV_GET_LE16(buffer);
228 hdev->le_scan_window_discovery = TLV_GET_LE16(buffer);
231 hdev->le_scan_int_adv_monitor = TLV_GET_LE16(buffer);
234 hdev->le_scan_window_adv_monitor = TLV_GET_LE16(buffer);
237 hdev->le_scan_int_connect = TLV_GET_LE16(buffer);
240 hdev->le_scan_window_connect = TLV_GET_LE16(buffer);
243 hdev->le_conn_min_interval = TLV_GET_LE16(buffer);
246 hdev->le_conn_max_interval = TLV_GET_LE16(buffer);
249 hdev->le_conn_latency = TLV_GET_LE16(buffer);
252 hdev->le_supv_timeout = TLV_GET_LE16(buffer);
255 hdev->def_le_autoconnect_timeout =
256 msecs_to_jiffies(TLV_GET_LE16(buffer));
259 hdev->advmon_allowlist_duration = TLV_GET_LE16(buffer);
262 hdev->advmon_no_filter_duration = TLV_GET_LE16(buffer);
265 bt_dev_warn(hdev, "unsupported parameter %u", type);
269 buffer_left -= exp_len;
273 return mgmt_cmd_complete(sk, hdev->id,
274 MGMT_OP_SET_DEF_SYSTEM_CONFIG, 0, NULL, 0);
277 int read_def_runtime_config(struct sock *sk, struct hci_dev *hdev, void *data,
280 bt_dev_dbg(hdev, "sock %p", sk);
282 return mgmt_cmd_complete(sk, hdev->id,
283 MGMT_OP_READ_DEF_RUNTIME_CONFIG, 0, NULL, 0);
286 int set_def_runtime_config(struct sock *sk, struct hci_dev *hdev, void *data,
289 bt_dev_dbg(hdev, "sock %p", sk);
291 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_DEF_SYSTEM_CONFIG,
292 MGMT_STATUS_INVALID_PARAMS);