[linux-block.git] / net / bluetooth / mgmt_config.c

// 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_) } \
}

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),
	};
	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:
			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;
		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);
}
Commit	Line	Data
17896406 AM	1	// SPDX-License-Identifier: GPL-2.0-only
	2
	3	/*
	4	* Copyright (C) 2020 Google Corporation
	5	*/
	6
	7	#include <net/bluetooth/bluetooth.h>
	8	#include <net/bluetooth/hci_core.h>
	9	#include <net/bluetooth/mgmt.h>
	10
	11	#include "mgmt_util.h"
	12	#include "mgmt_config.h"
	13
	14	#define HDEV_PARAM_U16(_param_code_, _param_name_) \
	15	{ \
	16	{ cpu_to_le16(_param_code_), sizeof(__u16) }, \
	17	{ cpu_to_le16(hdev->_param_name_) } \
	18	}
	19
	20	int read_def_system_config(struct sock sk, struct hci_dev hdev, void *data,
	21	u16 data_len)
	22	{
	23	struct {
	24	struct mgmt_tlv entry;
	25	union {
	26	/* This is a simplification for now since all values
	27	* are 16 bits. In the future, this code may need
	28	* refactoring to account for variable length values
	29	* and properly calculate the required buffer size.
	30	*/
	31	__le16 value;
	32	};
	33	} __packed params[] = {
	34	/* Please see mgmt-api.txt for documentation of these values */
	35	HDEV_PARAM_U16(0x0000, def_page_scan_type),
	36	HDEV_PARAM_U16(0x0001, def_page_scan_int),
	37	HDEV_PARAM_U16(0x0002, def_page_scan_window),
	38	HDEV_PARAM_U16(0x0003, def_inq_scan_type),
	39	HDEV_PARAM_U16(0x0004, def_inq_scan_int),
	40	HDEV_PARAM_U16(0x0005, def_inq_scan_window),
	41	HDEV_PARAM_U16(0x0006, def_br_lsto),
	42	HDEV_PARAM_U16(0x0007, def_page_timeout),
	43	HDEV_PARAM_U16(0x0008, sniff_min_interval),
	44	HDEV_PARAM_U16(0x0009, sniff_max_interval),
	45	HDEV_PARAM_U16(0x000a, le_adv_min_interval),
	46	HDEV_PARAM_U16(0x000b, le_adv_max_interval),
	47	HDEV_PARAM_U16(0x000c, def_multi_adv_rotation_duration),
	48	HDEV_PARAM_U16(0x000d, le_scan_interval),
	49	HDEV_PARAM_U16(0x000e, le_scan_window),
	50	HDEV_PARAM_U16(0x000f, le_scan_int_suspend),
	51	HDEV_PARAM_U16(0x0010, le_scan_window_suspend),
	52	HDEV_PARAM_U16(0x0011, le_scan_int_discovery),
	53	HDEV_PARAM_U16(0x0012, le_scan_window_discovery),
	54	HDEV_PARAM_U16(0x0013, le_scan_int_adv_monitor),
	55	HDEV_PARAM_U16(0x0014, le_scan_window_adv_monitor),
	56	HDEV_PARAM_U16(0x0015, le_scan_int_connect),
	57	HDEV_PARAM_U16(0x0016, le_scan_window_connect),
	58	HDEV_PARAM_U16(0x0017, le_conn_min_interval),
	59	HDEV_PARAM_U16(0x0018, le_conn_max_interval),
	60	HDEV_PARAM_U16(0x0019, le_conn_latency),
	61	HDEV_PARAM_U16(0x001a, le_supv_timeout),
	62	};
	63	struct mgmt_rp_read_def_system_config rp = (void )params;
	64
65	bt_dev_dbg(hdev, "sock %p", sk);
66
67	return mgmt_cmd_complete(sk, hdev->id,
68	MGMT_OP_READ_DEF_SYSTEM_CONFIG,
69	0, rp, sizeof(params));
70	}
71
72	#define TO_TLV(x) ((struct mgmt_tlv *)(x))
73	#define TLV_GET_LE16(tlv) le16_to_cpu(((__le16 )(TO_TLV(tlv)->value)))
74
75	int set_def_system_config(struct sock sk, struct hci_dev hdev, void *data,
76	u16 data_len)
77	{
78	u16 buffer_left = data_len;
79	u8 *buffer = data;
80
81	if (buffer_left < sizeof(struct mgmt_tlv)) {
82	return mgmt_cmd_status(sk, hdev->id,
83	MGMT_OP_SET_DEF_SYSTEM_CONFIG,
84	MGMT_STATUS_INVALID_PARAMS);
85	}
86
87	/* First pass to validate the tlv */
88	while (buffer_left >= sizeof(struct mgmt_tlv)) {
89	const u8 len = TO_TLV(buffer)->length;
90	const u16 exp_len = sizeof(struct mgmt_tlv) +
91	len;
92	const u16 type = le16_to_cpu(TO_TLV(buffer)->type);
93
94	if (buffer_left < exp_len) {
95	bt_dev_warn(hdev, "invalid len left %d, exp >= %d",
96	buffer_left, exp_len);
97
98	return mgmt_cmd_status(sk, hdev->id,
99	MGMT_OP_SET_DEF_SYSTEM_CONFIG,
100	MGMT_STATUS_INVALID_PARAMS);
101	}
102
103	/* Please see mgmt-api.txt for documentation of these values */
104	switch (type) {
105	case 0x0000:
106	case 0x0001:
107	case 0x0002:
108	case 0x0003:
109	case 0x0004:
110	case 0x0005:
111	case 0x0006:
112	case 0x0007:
113	case 0x0008:
114	case 0x0009:
115	case 0x000a:
116	case 0x000b:
117	case 0x000c:
118	case 0x000d:
119	case 0x000e:
120	case 0x000f:
121	case 0x0010:
122	case 0x0011:
123	case 0x0012:
124	case 0x0013:
125	case 0x0014:
126	case 0x0015:
127	case 0x0016:
128	case 0x0017:
129	case 0x0018:
130	case 0x0019:
131	case 0x001a:
132	if (len != sizeof(u16)) {
133	bt_dev_warn(hdev, "invalid length %d, exp %zu for type %d",
134	len, sizeof(u16), type);
135
136	return mgmt_cmd_status(sk, hdev->id,
137	MGMT_OP_SET_DEF_SYSTEM_CONFIG,
138	MGMT_STATUS_INVALID_PARAMS);
139	}
140	break;
141	default:
142	bt_dev_warn(hdev, "unsupported parameter %u", type);
143	break;
144	}
145
146	buffer_left -= exp_len;
147	buffer += exp_len;
148	}
149
150	buffer_left = data_len;
151	buffer = data;
152	while (buffer_left >= sizeof(struct mgmt_tlv)) {
153	const u8 len = TO_TLV(buffer)->length;
154	const u16 exp_len = sizeof(struct mgmt_tlv) +
155	len;
156	const u16 type = le16_to_cpu(TO_TLV(buffer)->type);
157
158	switch (type) {
159	case 0x0000:
160	hdev->def_page_scan_type = TLV_GET_LE16(buffer);
161	break;
162	case 0x0001:
163	hdev->def_page_scan_int = TLV_GET_LE16(buffer);
164	break;
165	case 0x0002:
166	hdev->def_page_scan_window = TLV_GET_LE16(buffer);
167	break;
168	case 0x0003:
169	hdev->def_inq_scan_type = TLV_GET_LE16(buffer);
170	break;
171	case 0x0004:
172	hdev->def_inq_scan_int = TLV_GET_LE16(buffer);
173	break;
174	case 0x0005:
175	hdev->def_inq_scan_window = TLV_GET_LE16(buffer);
176	break;
177	case 0x0006:
178	hdev->def_br_lsto = TLV_GET_LE16(buffer);
179	break;
180	case 0x0007:
181	hdev->def_page_timeout = TLV_GET_LE16(buffer);
182	break;
183	case 0x0008:
184	hdev->sniff_min_interval = TLV_GET_LE16(buffer);
185	break;
186	case 0x0009:
187	hdev->sniff_max_interval = TLV_GET_LE16(buffer);
188	break;
189	case 0x000a:
190	hdev->le_adv_min_interval = TLV_GET_LE16(buffer);
191	break;
192	case 0x000b:
193	hdev->le_adv_max_interval = TLV_GET_LE16(buffer);
194	break;
195	case 0x000c:
196	hdev->def_multi_adv_rotation_duration =
197	TLV_GET_LE16(buffer);
198	break;
199	case 0x000d:
200	hdev->le_scan_interval = TLV_GET_LE16(buffer);
201	break;
202	case 0x000e:
203	hdev->le_scan_window = TLV_GET_LE16(buffer);
204	break;
205	case 0x000f:
206	hdev->le_scan_int_suspend = TLV_GET_LE16(buffer);
207	break;
208	case 0x0010:
209	hdev->le_scan_window_suspend = TLV_GET_LE16(buffer);
210	break;
211	case 0x0011:
212	hdev->le_scan_int_discovery = TLV_GET_LE16(buffer);
213	break;
214	case 0x00012:
215	hdev->le_scan_window_discovery = TLV_GET_LE16(buffer);
216	break;
217	case 0x00013:
218	hdev->le_scan_int_adv_monitor = TLV_GET_LE16(buffer);
219	break;
220	case 0x00014:
221	hdev->le_scan_window_adv_monitor = TLV_GET_LE16(buffer);
222	break;
223	case 0x00015:
224	hdev->le_scan_int_connect = TLV_GET_LE16(buffer);
225	break;
226	case 0x00016:
227	hdev->le_scan_window_connect = TLV_GET_LE16(buffer);
228	break;
229	case 0x00017:
230	hdev->le_conn_min_interval = TLV_GET_LE16(buffer);
231	break;
232	case 0x00018:
233	hdev->le_conn_max_interval = TLV_GET_LE16(buffer);
234	break;
235	case 0x00019:
236	hdev->le_conn_latency = TLV_GET_LE16(buffer);
237	break;
238	case 0x0001a:
239	hdev->le_supv_timeout = TLV_GET_LE16(buffer);
240	break;
241	default:
242	bt_dev_warn(hdev, "unsupported parameter %u", type);
243	break;
244	}
245
246	buffer_left -= exp_len;
247	buffer += exp_len;
248	}
249
46605a27 MH	250	return mgmt_cmd_complete(sk, hdev->id,
46605a27 MH	251	MGMT_OP_SET_DEF_SYSTEM_CONFIG, 0, NULL, 0);
17896406	252	}
aececa64 MH	253
	254	int read_def_runtime_config(struct sock sk, struct hci_dev hdev, void *data,
	255	u16 data_len)
	256	{
	257	bt_dev_dbg(hdev, "sock %p", sk);
	258
	259	return mgmt_cmd_complete(sk, hdev->id,
	260	MGMT_OP_READ_DEF_RUNTIME_CONFIG, 0, NULL, 0);
	261	}
	262
	263	int set_def_runtime_config(struct sock sk, struct hci_dev hdev, void *data,
	264	u16 data_len)
	265	{
	266	bt_dev_dbg(hdev, "sock %p", sk);
	267
	268	return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_DEF_SYSTEM_CONFIG,
	269	MGMT_STATUS_INVALID_PARAMS);
	270	}