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net/bluetooth/mgmt_config.c
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// 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_) } \ } |
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#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_)) } \ } |
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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), |
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HDEV_PARAM_U16_JIFFIES_TO_MSECS(0x001b, def_le_autoconnect_timeout), |
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}; 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: |
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case 0x001b: |
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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; |
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case 0x0001b: hdev->def_le_autoconnect_timeout = msecs_to_jiffies(TLV_GET_LE16(buffer)); break; |
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default: bt_dev_warn(hdev, "unsupported parameter %u", type); break; } buffer_left -= exp_len; buffer += exp_len; } |
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return mgmt_cmd_complete(sk, hdev->id, MGMT_OP_SET_DEF_SYSTEM_CONFIG, 0, NULL, 0); |
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} |
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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); } |