/*
 *  BlueZ - Bluetooth protocol stack for Linux
 *
 *  Copyright (C) 2010  Nokia Corporation
 *  Copyright (C) 2010  Marcel Holtmann <marcel@holtmann.org>
 *
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 *
 */

#ifndef __packed
#define __packed __attribute__((packed))
#endif

#define MGMT_INDEX_NONE			0xFFFF

#define MGMT_STATUS_SUCCESS		0x00
#define MGMT_STATUS_UNKNOWN_COMMAND	0x01
#define MGMT_STATUS_NOT_CONNECTED	0x02
#define MGMT_STATUS_FAILED		0x03
#define MGMT_STATUS_CONNECT_FAILED	0x04
#define MGMT_STATUS_AUTH_FAILED		0x05
#define MGMT_STATUS_NOT_PAIRED		0x06
#define MGMT_STATUS_NO_RESOURCES	0x07
#define MGMT_STATUS_TIMEOUT		0x08
#define MGMT_STATUS_ALREADY_CONNECTED	0x09
#define MGMT_STATUS_BUSY		0x0a
#define MGMT_STATUS_REJECTED		0x0b
#define MGMT_STATUS_NOT_SUPPORTED	0x0c
#define MGMT_STATUS_INVALID_PARAMS	0x0d
#define MGMT_STATUS_DISCONNECTED	0x0e
#define MGMT_STATUS_NOT_POWERED		0x0f
#define MGMT_STATUS_CANCELLED		0x10
#define MGMT_STATUS_INVALID_INDEX	0x11

struct mgmt_hdr {
	uint16_t opcode;
	uint16_t index;
	uint16_t len;
} __packed;
#define MGMT_HDR_SIZE	6

struct mgmt_addr_info {
	bdaddr_t bdaddr;
	uint8_t type;
} __packed;

#define MGMT_OP_READ_VERSION		0x0001
struct mgmt_rp_read_version {
	uint8_t version;
	uint16_t revision;
} __packed;

#define MGMT_OP_READ_COMMANDS		0x0002
struct mgmt_rp_read_commands {
	uint16_t num_commands;
	uint16_t num_events;
	uint16_t opcodes[0];
} __packed;

#define MGMT_OP_READ_INDEX_LIST		0x0003
struct mgmt_rp_read_index_list {
	uint16_t num_controllers;
	uint16_t index[0];
} __packed;

/* Reserve one extra byte for names in management messages so that they
 * are always guaranteed to be nul-terminated */
#define MGMT_MAX_NAME_LENGTH		(248 + 1)
#define MGMT_MAX_SHORT_NAME_LENGTH	(10 + 1)

#define MGMT_SETTING_POWERED		0x00000001
#define MGMT_SETTING_CONNECTABLE	0x00000002
#define MGMT_SETTING_FAST_CONNECTABLE	0x00000004
#define MGMT_SETTING_DISCOVERABLE	0x00000008
#define MGMT_SETTING_PAIRABLE		0x00000010
#define MGMT_SETTING_LINK_SECURITY	0x00000020
#define MGMT_SETTING_SSP		0x00000040
#define MGMT_SETTING_BREDR		0x00000080
#define MGMT_SETTING_HS			0x00000100
#define MGMT_SETTING_LE			0x00000200

#define MGMT_OP_READ_INFO		0x0004
struct mgmt_rp_read_info {
	bdaddr_t bdaddr;
	uint8_t version;
	uint16_t manufacturer;
	uint32_t supported_settings;
	uint32_t current_settings;
	uint8_t dev_class[3];
	uint8_t name[MGMT_MAX_NAME_LENGTH];
	uint8_t short_name[MGMT_MAX_SHORT_NAME_LENGTH];
} __packed;

struct mgmt_mode {
	uint8_t val;
} __packed;

struct mgmt_cod {
	uint8_t val[3];
} __packed;

#define MGMT_OP_SET_POWERED		0x0005

#define MGMT_OP_SET_DISCOVERABLE	0x0006
struct mgmt_cp_set_discoverable {
	uint8_t val;
	uint16_t timeout;
} __packed;

#define MGMT_OP_SET_CONNECTABLE		0x0007

#define MGMT_OP_SET_FAST_CONNECTABLE	0x0008

#define MGMT_OP_SET_PAIRABLE		0x0009

#define MGMT_OP_SET_LINK_SECURITY	0x000A

#define MGMT_OP_SET_SSP			0x000B

#define MGMT_OP_SET_HS			0x000C

#define MGMT_OP_SET_LE			0x000D

#define MGMT_OP_SET_DEV_CLASS		0x000E
struct mgmt_cp_set_dev_class {
	uint8_t major;
	uint8_t minor;
} __packed;

#define MGMT_OP_SET_LOCAL_NAME		0x000F
struct mgmt_cp_set_local_name {
	uint8_t name[MGMT_MAX_NAME_LENGTH];
	uint8_t short_name[MGMT_MAX_SHORT_NAME_LENGTH];
} __packed;

#define MGMT_OP_ADD_UUID		0x0010
struct mgmt_cp_add_uuid {
	uint8_t uuid[16];
	uint8_t svc_hint;
} __packed;

#define MGMT_OP_REMOVE_UUID		0x0011
struct mgmt_cp_remove_uuid {
	uint8_t uuid[16];
} __packed;

struct mgmt_link_key_info {
	struct mgmt_addr_info addr;
	uint8_t type;
	uint8_t val[16];
	uint8_t pin_len;
} __packed;

#define MGMT_OP_LOAD_LINK_KEYS		0x0012
struct mgmt_cp_load_link_keys {
	uint8_t debug_keys;
	uint16_t key_count;
	struct mgmt_link_key_info keys[0];
} __packed;

struct mgmt_ltk_info {
	struct mgmt_addr_info addr;
	uint8_t authenticated;
	uint8_t master;
	uint8_t enc_size;
	uint16_t ediv;
	uint8_t rand[8];
	uint8_t val[16];
} __packed;

#define MGMT_OP_LOAD_LONG_TERM_KEYS	0x0013
struct mgmt_cp_load_long_term_keys {
	uint16_t key_count;
	struct mgmt_ltk_info keys[0];
} __packed;

#define MGMT_OP_DISCONNECT		0x0014
struct mgmt_cp_disconnect {
	struct mgmt_addr_info addr;
} __packed;
struct mgmt_rp_disconnect {
	struct mgmt_addr_info addr;
} __packed;

#define MGMT_OP_GET_CONNECTIONS		0x0015
struct mgmt_rp_get_connections {
	uint16_t conn_count;
	struct mgmt_addr_info addr[0];
} __packed;

#define MGMT_OP_PIN_CODE_REPLY		0x0016
struct mgmt_cp_pin_code_reply {
	struct mgmt_addr_info addr;
	uint8_t pin_len;
	uint8_t pin_code[16];
} __packed;

#define MGMT_OP_PIN_CODE_NEG_REPLY	0x0017
struct mgmt_cp_pin_code_neg_reply {
	struct mgmt_addr_info addr;
} __packed;

#define MGMT_OP_SET_IO_CAPABILITY	0x0018
struct mgmt_cp_set_io_capability {
	uint8_t io_capability;
} __packed;

#define MGMT_OP_PAIR_DEVICE		0x0019
struct mgmt_cp_pair_device {
	struct mgmt_addr_info addr;
	uint8_t io_cap;
} __packed;
struct mgmt_rp_pair_device {
	struct mgmt_addr_info addr;
} __packed;

#define MGMT_OP_CANCEL_PAIR_DEVICE	0x001A

#define MGMT_OP_UNPAIR_DEVICE		0x001B
struct mgmt_cp_unpair_device {
	struct mgmt_addr_info addr;
	uint8_t disconnect;
} __packed;
struct mgmt_rp_unpair_device {
	struct mgmt_addr_info addr;
} __packed;

#define MGMT_OP_USER_CONFIRM_REPLY	0x001C
struct mgmt_cp_user_confirm_reply {
	struct mgmt_addr_info addr;
} __packed;
struct mgmt_rp_user_confirm_reply {
	struct mgmt_addr_info addr;
} __packed;

#define MGMT_OP_USER_CONFIRM_NEG_REPLY	0x001D

#define MGMT_OP_USER_PASSKEY_REPLY	0x001E
struct mgmt_cp_user_passkey_reply {
	struct mgmt_addr_info addr;
	uint32_t passkey;
} __packed;
struct mgmt_rp_user_passkey_reply {
	struct mgmt_addr_info addr;
} __packed;

#define MGMT_OP_USER_PASSKEY_NEG_REPLY	0x001F
struct mgmt_cp_user_passkey_neg_reply {
	struct mgmt_addr_info addr;
} __packed;

#define MGMT_OP_READ_LOCAL_OOB_DATA	0x0020
struct mgmt_rp_read_local_oob_data {
	uint8_t hash[16];
	uint8_t randomizer[16];
} __packed;

#define MGMT_OP_ADD_REMOTE_OOB_DATA	0x0021
struct mgmt_cp_add_remote_oob_data {
	struct mgmt_addr_info addr;
	uint8_t hash[16];
	uint8_t randomizer[16];
} __packed;

#define MGMT_OP_REMOVE_REMOTE_OOB_DATA	0x0022
struct mgmt_cp_remove_remote_oob_data {
	struct mgmt_addr_info addr;
} __packed;

#define MGMT_OP_START_DISCOVERY		0x0023
struct mgmt_cp_start_discovery {
	uint8_t type;
} __packed;

#define MGMT_OP_STOP_DISCOVERY		0x0024
struct mgmt_cp_stop_discovery {
	uint8_t type;
} __packed;

#define MGMT_OP_CONFIRM_NAME		0x0025
struct mgmt_cp_confirm_name {
	struct mgmt_addr_info addr;
	uint8_t name_known;
} __packed;
struct mgmt_rp_confirm_name {
	struct mgmt_addr_info addr;
} __packed;

#define MGMT_OP_BLOCK_DEVICE		0x0026
struct mgmt_cp_block_device {
	struct mgmt_addr_info addr;
} __packed;

#define MGMT_OP_UNBLOCK_DEVICE		0x0027
struct mgmt_cp_unblock_device {
	struct mgmt_addr_info addr;
} __packed;

#define MGMT_OP_SET_DEVICE_ID		0x0028
struct mgmt_cp_set_device_id {
	uint16_t source;
	uint16_t vendor;
	uint16_t product;
	uint16_t version;
} __packed;

#define MGMT_EV_CMD_COMPLETE		0x0001
struct mgmt_ev_cmd_complete {
	uint16_t opcode;
	uint8_t status;
	uint8_t data[0];
} __packed;

#define MGMT_EV_CMD_STATUS		0x0002
struct mgmt_ev_cmd_status {
	uint16_t opcode;
	uint8_t status;
} __packed;

#define MGMT_EV_CONTROLLER_ERROR	0x0003
struct mgmt_ev_controller_error {
	uint8_t error_code;
} __packed;

#define MGMT_EV_INDEX_ADDED		0x0004

#define MGMT_EV_INDEX_REMOVED		0x0005

#define MGMT_EV_NEW_SETTINGS		0x0006

#define MGMT_EV_CLASS_OF_DEV_CHANGED	0x0007
struct mgmt_ev_class_of_dev_changed {
	uint8_t class_of_dev[3];
} __packed;

#define MGMT_EV_LOCAL_NAME_CHANGED	0x0008
struct mgmt_ev_local_name_changed {
	uint8_t name[MGMT_MAX_NAME_LENGTH];
	uint8_t short_name[MGMT_MAX_SHORT_NAME_LENGTH];
} __packed;

#define MGMT_EV_NEW_LINK_KEY		0x0009
struct mgmt_ev_new_link_key {
	uint8_t store_hint;
	struct mgmt_link_key_info key;
} __packed;

#define MGMT_EV_NEW_LONG_TERM_KEY	0x000A
struct mgmt_ev_new_long_term_key {
	uint8_t store_hint;
	struct mgmt_ltk_info key;
} __packed;

#define MGMT_EV_DEVICE_CONNECTED	0x000B
struct mgmt_ev_device_connected {
	struct mgmt_addr_info addr;
	uint32_t flags;
	uint16_t eir_len;
	uint8_t eir[0];
} __packed;

#define MGMT_DEV_DISCONN_UNKNOWN	0x00
#define MGMT_DEV_DISCONN_TIMEOUT	0x01
#define MGMT_DEV_DISCONN_LOCAL_HOST	0x02
#define MGMT_DEV_DISCONN_REMOTE		0x03

#define MGMT_EV_DEVICE_DISCONNECTED	0x000C
struct mgmt_ev_device_disconnected {
	struct mgmt_addr_info addr;
	uint8_t reason;
} __packed;

#define MGMT_EV_CONNECT_FAILED		0x000D
struct mgmt_ev_connect_failed {
	struct mgmt_addr_info addr;
	uint8_t status;
} __packed;

#define MGMT_EV_PIN_CODE_REQUEST	0x000E
struct mgmt_ev_pin_code_request {
	struct mgmt_addr_info addr;
	uint8_t secure;
} __packed;

#define MGMT_EV_USER_CONFIRM_REQUEST	0x000F
struct mgmt_ev_user_confirm_request {
	struct mgmt_addr_info addr;
	uint8_t confirm_hint;
	uint32_t value;
} __packed;

#define MGMT_EV_USER_PASSKEY_REQUEST	0x0010
struct mgmt_ev_user_passkey_request {
	struct mgmt_addr_info addr;
} __packed;

#define MGMT_EV_AUTH_FAILED		0x0011
struct mgmt_ev_auth_failed {
	struct mgmt_addr_info addr;
	uint8_t status;
} __packed;

#define MGMT_DEV_FOUND_CONFIRM_NAME	0x01
#define MGMT_DEV_FOUND_LEGACY_PAIRING	0x02

#define MGMT_EV_DEVICE_FOUND		0x0012
struct mgmt_ev_device_found {
	struct mgmt_addr_info addr;
	int8_t rssi;
	uint32_t flags;
	uint16_t eir_len;
	uint8_t eir[0];
} __packed;

#define MGMT_EV_DISCOVERING		0x0013
struct mgmt_ev_discovering {
	uint8_t type;
	uint8_t discovering;
} __packed;

#define MGMT_EV_DEVICE_BLOCKED		0x0014
struct mgmt_ev_device_blocked {
	struct mgmt_addr_info addr;
} __packed;

#define MGMT_EV_DEVICE_UNBLOCKED	0x0015
struct mgmt_ev_device_unblocked {
	struct mgmt_addr_info addr;
} __packed;

#define MGMT_EV_DEVICE_UNPAIRED		0x0016
struct mgmt_ev_device_unpaired {
	struct mgmt_addr_info addr;
} __packed;

#define MGMT_EV_PASSKEY_NOTIFY		0x0017
struct mgmt_ev_passkey_notify {
	struct mgmt_addr_info addr;
	uint32_t passkey;
	uint8_t entered;
} __packed;

static const char *mgmt_op[] = {
	"<0x0000>",
	"Read Version",
	"Read Commands",
	"Read Index List",
	"Read Controller Info",
	"Set Powered",
	"Set Discoverable",
	"Set Connectable",
	"Set Fast Connectable",		/* 0x0008 */
	"Set Pairable",
	"Set Link Security",
	"Set Secure Simple Pairing",
	"Set High Speed",
	"Set Low Energy",
	"Set Dev Class",
	"Set Local Name",
	"Add UUID",			/* 0x0010 */
	"Remove UUID",
	"Load Link Keys",
	"Load Long Term Keys",
	"Disconnect",
	"Get Connections",
	"PIN Code Reply",
	"PIN Code Neg Reply",
	"Set IO Capability",		/* 0x0018 */
	"Pair Device",
	"Cancel Pair Device",
	"Unpair Device",
	"User Confirm Reply",
	"User Confirm Neg Reply",
	"User Passkey Reply",
	"User Passkey Neg Reply",
	"Read Local OOB Data",		/* 0x0020 */
	"Add Remote OOB Data",
	"Remove Remove OOB Data",
	"Start Discovery",
	"Stop Discovery",
	"Confirm Name",
	"Block Device",
	"Unblock Device",
	"Set Device ID",
};

static const char *mgmt_ev[] = {
	"<0x0000>",
	"Command Complete",
	"Command Status",
	"Controller Error",
	"Index Added",
	"Index Removed",
	"New Settings",
	"Class of Device Changed",
	"Local Name Changed",		/* 0x0008 */
	"New Link Key",
	"New Long Term Key",
	"Device Connected",
	"Device Disconnected",
	"Connect Failed",
	"PIN Code Request",
	"User Confirm Request",
	"User Passkey Request",		/* 0x0010 */
	"Authentication Failed",
	"Device Found",
	"Discovering",
	"Device Blocked",
	"Device Unblocked",
	"Device Unpaired",
	"Passkey Notify",
};

static const char *mgmt_status[] = {
	"Success",
	"Unknown Command",
	"Not Connected",
	"Failed",
	"Connect Failed",
	"Authentication Failed",
	"Not Paired",
	"No Resources",
	"Timeout",
	"Already Connected",
	"Busy",
	"Rejected",
	"Not Supported",
	"Invalid Parameters",
	"Disconnected",
	"Not Powered",
	"Cancelled",
	"Invalid Index",
};

#ifndef NELEM
#define NELEM(x) (sizeof(x) / sizeof((x)[0]))
#endif

static inline const char *mgmt_opstr(uint16_t op)
{
	if (op >= NELEM(mgmt_op))
		return "<unknown opcode>";
	return mgmt_op[op];
}

static inline const char *mgmt_evstr(uint16_t ev)
{
	if (ev >= NELEM(mgmt_ev))
		return "<unknown event>";
	return mgmt_ev[ev];
}

static inline const char *mgmt_errstr(uint8_t status)
{
	if (status >= NELEM(mgmt_status))
		return "<unknown status>";
	return mgmt_status[status];
}