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-rw-r--r--security/tf_driver/tf_protocol.h690
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diff --git a/security/tf_driver/tf_protocol.h b/security/tf_driver/tf_protocol.h
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+++ b/security/tf_driver/tf_protocol.h
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+/**
+ * Copyright (c) 2011 Trusted Logic S.A.
+ * All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * 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., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#ifndef __TF_PROTOCOL_H__
+#define __TF_PROTOCOL_H__
+
+/*----------------------------------------------------------------------------
+ *
+ * This header file defines the structure used in the SChannel Protocol.
+ * See your Product Reference Manual for a specification of the SChannel
+ * protocol.
+ *---------------------------------------------------------------------------*/
+
+/*
+ * The driver interface version returned by the version ioctl
+ */
+#define TF_DRIVER_INTERFACE_VERSION 0x04000000
+
+/*
+ * Protocol version handling
+ */
+#define TF_S_PROTOCOL_MAJOR_VERSION (0x06)
+#define GET_PROTOCOL_MAJOR_VERSION(a) (a >> 24)
+#define GET_PROTOCOL_MINOR_VERSION(a) ((a >> 16) & 0xFF)
+
+/*
+ * The S flag of the config_flag_s register.
+ */
+#define TF_CONFIG_FLAG_S (1 << 3)
+
+/*
+ * The TimeSlot field of the sync_serial_n register.
+ */
+#define TF_SYNC_SERIAL_TIMESLOT_N (1)
+
+/*
+ * status_s related defines.
+ */
+#define TF_STATUS_P_MASK (0X00000001)
+#define TF_STATUS_POWER_STATE_SHIFT (3)
+#define TF_STATUS_POWER_STATE_MASK (0x1F << TF_STATUS_POWER_STATE_SHIFT)
+
+/*
+ * Possible power states of the POWER_STATE field of the status_s register
+ */
+#define TF_POWER_MODE_COLD_BOOT (0)
+#define TF_POWER_MODE_WARM_BOOT (1)
+#define TF_POWER_MODE_ACTIVE (3)
+#define TF_POWER_MODE_READY_TO_SHUTDOWN (5)
+#define TF_POWER_MODE_READY_TO_HIBERNATE (7)
+#define TF_POWER_MODE_WAKEUP (8)
+#define TF_POWER_MODE_PANIC (15)
+
+/*
+ * Possible command values for MANAGEMENT commands
+ */
+#define TF_MANAGEMENT_HIBERNATE (1)
+#define TF_MANAGEMENT_SHUTDOWN (2)
+#define TF_MANAGEMENT_PREPARE_FOR_CORE_OFF (3)
+#define TF_MANAGEMENT_RESUME_FROM_CORE_OFF (4)
+
+/*
+ * The capacity of the Normal Word message queue, in number of slots.
+ */
+#define TF_N_MESSAGE_QUEUE_CAPACITY (512)
+
+/*
+ * The capacity of the Secure World message answer queue, in number of slots.
+ */
+#define TF_S_ANSWER_QUEUE_CAPACITY (256)
+
+/*
+ * The value of the S-timeout register indicating an infinite timeout.
+ */
+#define TF_S_TIMEOUT_0_INFINITE (0xFFFFFFFF)
+#define TF_S_TIMEOUT_1_INFINITE (0xFFFFFFFF)
+
+/*
+ * The value of the S-timeout register indicating an immediate timeout.
+ */
+#define TF_S_TIMEOUT_0_IMMEDIATE (0x0)
+#define TF_S_TIMEOUT_1_IMMEDIATE (0x0)
+
+/*
+ * Identifies the get protocol version SMC.
+ */
+#define TF_SMC_GET_PROTOCOL_VERSION (0XFFFFFFFB)
+
+/*
+ * Identifies the init SMC.
+ */
+#define TF_SMC_INIT (0XFFFFFFFF)
+
+/*
+ * Identifies the reset irq SMC.
+ */
+#define TF_SMC_RESET_IRQ (0xFFFFFFFE)
+
+/*
+ * Identifies the SET_W3B SMC.
+ */
+#define TF_SMC_WAKE_UP (0xFFFFFFFD)
+
+/*
+ * Identifies the STOP SMC.
+ */
+#define TF_SMC_STOP (0xFFFFFFFC)
+
+/*
+ * Identifies the n-yield SMC.
+ */
+#define TF_SMC_N_YIELD (0X00000003)
+
+
+/* Possible stop commands for SMC_STOP */
+#define SCSTOP_HIBERNATE (0xFFFFFFE1)
+#define SCSTOP_SHUTDOWN (0xFFFFFFE2)
+
+/*
+ * representation of an UUID.
+ */
+struct tf_uuid {
+ u32 time_low;
+ u16 time_mid;
+ u16 time_hi_and_version;
+ u8 clock_seq_and_node[8];
+};
+
+
+/**
+ * Command parameters.
+ */
+struct tf_command_param_value {
+ u32 a;
+ u32 b;
+};
+
+struct tf_command_param_temp_memref {
+ u32 descriptor; /* data pointer for exchange message.*/
+ u32 size;
+ u32 offset;
+};
+
+struct tf_command_param_memref {
+ u32 block;
+ u32 size;
+ u32 offset;
+};
+
+union tf_command_param {
+ struct tf_command_param_value value;
+ struct tf_command_param_temp_memref temp_memref;
+ struct tf_command_param_memref memref;
+};
+
+/**
+ * Answer parameters.
+ */
+struct tf_answer_param_value {
+ u32 a;
+ u32 b;
+};
+
+struct tf_answer_param_size {
+ u32 _ignored;
+ u32 size;
+};
+
+union tf_answer_param {
+ struct tf_answer_param_size size;
+ struct tf_answer_param_value value;
+};
+
+/*
+ * Descriptor tables capacity
+ */
+#define TF_MAX_W3B_COARSE_PAGES (2)
+/* TF_MAX_COARSE_PAGES is the number of level 1 descriptors (describing
+ * 1MB each) that can be shared with the secure world in a single registered
+ * shared memory block. It must be kept in synch with
+ * SCHANNEL6_MAX_DESCRIPTORS_PER_REGISTERED_SHARED_MEM in the SChannel
+ * protocol spec. */
+#define TF_MAX_COARSE_PAGES 128
+#define TF_DESCRIPTOR_TABLE_CAPACITY_BIT_SHIFT (8)
+#define TF_DESCRIPTOR_TABLE_CAPACITY \
+ (1 << TF_DESCRIPTOR_TABLE_CAPACITY_BIT_SHIFT)
+#define TF_DESCRIPTOR_TABLE_CAPACITY_MASK \
+ (TF_DESCRIPTOR_TABLE_CAPACITY - 1)
+/* Shared memories coarse pages can map up to 1MB */
+#define TF_MAX_COARSE_PAGE_MAPPED_SIZE \
+ (PAGE_SIZE * TF_DESCRIPTOR_TABLE_CAPACITY)
+/* Shared memories cannot exceed 8MB */
+#define TF_MAX_SHMEM_SIZE \
+ (TF_MAX_COARSE_PAGE_MAPPED_SIZE << 3)
+
+/*
+ * Buffer size for version description fields
+ */
+#define TF_DESCRIPTION_BUFFER_LENGTH 64
+
+/*
+ * Shared memory type flags.
+ */
+#define TF_SHMEM_TYPE_READ (0x00000001)
+#define TF_SHMEM_TYPE_WRITE (0x00000002)
+
+/*
+ * Shared mem flags
+ */
+#define TF_SHARED_MEM_FLAG_INPUT 1
+#define TF_SHARED_MEM_FLAG_OUTPUT 2
+#define TF_SHARED_MEM_FLAG_INOUT 3
+
+
+/*
+ * Parameter types
+ */
+#define TF_PARAM_TYPE_NONE 0x0
+#define TF_PARAM_TYPE_VALUE_INPUT 0x1
+#define TF_PARAM_TYPE_VALUE_OUTPUT 0x2
+#define TF_PARAM_TYPE_VALUE_INOUT 0x3
+#define TF_PARAM_TYPE_MEMREF_TEMP_INPUT 0x5
+#define TF_PARAM_TYPE_MEMREF_TEMP_OUTPUT 0x6
+#define TF_PARAM_TYPE_MEMREF_TEMP_INOUT 0x7
+#define TF_PARAM_TYPE_MEMREF_INPUT 0xD
+#define TF_PARAM_TYPE_MEMREF_OUTPUT 0xE
+#define TF_PARAM_TYPE_MEMREF_INOUT 0xF
+
+#define TF_PARAM_TYPE_MEMREF_FLAG 0x4
+#define TF_PARAM_TYPE_REGISTERED_MEMREF_FLAG 0x8
+
+
+#define TF_MAKE_PARAM_TYPES(t0, t1, t2, t3) \
+ ((t0) | ((t1) << 4) | ((t2) << 8) | ((t3) << 12))
+#define TF_GET_PARAM_TYPE(t, i) (((t) >> (4 * i)) & 0xF)
+
+/*
+ * Login types.
+ */
+#define TF_LOGIN_PUBLIC 0x00000000
+#define TF_LOGIN_USER 0x00000001
+#define TF_LOGIN_GROUP 0x00000002
+#define TF_LOGIN_APPLICATION 0x00000004
+#define TF_LOGIN_APPLICATION_USER 0x00000005
+#define TF_LOGIN_APPLICATION_GROUP 0x00000006
+#define TF_LOGIN_AUTHENTICATION 0x80000000
+#define TF_LOGIN_PRIVILEGED 0x80000002
+
+/* Login variants */
+
+#define TF_LOGIN_VARIANT(main_type, os, variant) \
+ ((main_type) | (1 << 27) | ((os) << 16) | ((variant) << 8))
+
+#define TF_LOGIN_GET_MAIN_TYPE(type) \
+ ((type) & ~TF_LOGIN_VARIANT(0, 0xFF, 0xFF))
+
+#define TF_LOGIN_OS_ANY 0x00
+#define TF_LOGIN_OS_LINUX 0x01
+#define TF_LOGIN_OS_ANDROID 0x04
+
+/* OS-independent variants */
+#define TF_LOGIN_USER_NONE \
+ TF_LOGIN_VARIANT(TF_LOGIN_USER, TF_LOGIN_OS_ANY, 0xFF)
+#define TF_LOGIN_GROUP_NONE \
+ TF_LOGIN_VARIANT(TF_LOGIN_GROUP, TF_LOGIN_OS_ANY, 0xFF)
+#define TF_LOGIN_APPLICATION_USER_NONE \
+ TF_LOGIN_VARIANT(TF_LOGIN_APPLICATION_USER, TF_LOGIN_OS_ANY, 0xFF)
+#define TF_LOGIN_AUTHENTICATION_BINARY_SHA1_HASH \
+ TF_LOGIN_VARIANT(TF_LOGIN_AUTHENTICATION, TF_LOGIN_OS_ANY, 0x01)
+#define TF_LOGIN_PRIVILEGED_KERNEL \
+ TF_LOGIN_VARIANT(TF_LOGIN_PRIVILEGED, TF_LOGIN_OS_ANY, 0x01)
+
+/* Linux variants */
+#define TF_LOGIN_USER_LINUX_EUID \
+ TF_LOGIN_VARIANT(TF_LOGIN_USER, TF_LOGIN_OS_LINUX, 0x01)
+#define TF_LOGIN_GROUP_LINUX_GID \
+ TF_LOGIN_VARIANT(TF_LOGIN_GROUP, TF_LOGIN_OS_LINUX, 0x01)
+#define TF_LOGIN_APPLICATION_LINUX_PATH_SHA1_HASH \
+ TF_LOGIN_VARIANT(TF_LOGIN_APPLICATION, TF_LOGIN_OS_LINUX, 0x01)
+#define TF_LOGIN_APPLICATION_USER_LINUX_PATH_EUID_SHA1_HASH \
+ TF_LOGIN_VARIANT(TF_LOGIN_APPLICATION_USER, TF_LOGIN_OS_LINUX, 0x01)
+#define TF_LOGIN_APPLICATION_GROUP_LINUX_PATH_GID_SHA1_HASH \
+ TF_LOGIN_VARIANT(TF_LOGIN_APPLICATION_GROUP, TF_LOGIN_OS_LINUX, 0x01)
+
+/* Android variants */
+#define TF_LOGIN_USER_ANDROID_EUID \
+ TF_LOGIN_VARIANT(TF_LOGIN_USER, TF_LOGIN_OS_ANDROID, 0x01)
+#define TF_LOGIN_GROUP_ANDROID_GID \
+ TF_LOGIN_VARIANT(TF_LOGIN_GROUP, TF_LOGIN_OS_ANDROID, 0x01)
+#define TF_LOGIN_APPLICATION_ANDROID_UID \
+ TF_LOGIN_VARIANT(TF_LOGIN_APPLICATION, TF_LOGIN_OS_ANDROID, 0x01)
+#define TF_LOGIN_APPLICATION_USER_ANDROID_UID_EUID \
+ TF_LOGIN_VARIANT(TF_LOGIN_APPLICATION_USER, TF_LOGIN_OS_ANDROID, \
+ 0x01)
+#define TF_LOGIN_APPLICATION_GROUP_ANDROID_UID_GID \
+ TF_LOGIN_VARIANT(TF_LOGIN_APPLICATION_GROUP, TF_LOGIN_OS_ANDROID, \
+ 0x01)
+
+/*
+ * return origins
+ */
+#define TF_ORIGIN_COMMS 2
+#define TF_ORIGIN_TEE 3
+#define TF_ORIGIN_TRUSTED_APP 4
+/*
+ * The message types.
+ */
+#define TF_MESSAGE_TYPE_CREATE_DEVICE_CONTEXT 0x02
+#define TF_MESSAGE_TYPE_DESTROY_DEVICE_CONTEXT 0xFD
+#define TF_MESSAGE_TYPE_REGISTER_SHARED_MEMORY 0xF7
+#define TF_MESSAGE_TYPE_RELEASE_SHARED_MEMORY 0xF9
+#define TF_MESSAGE_TYPE_OPEN_CLIENT_SESSION 0xF0
+#define TF_MESSAGE_TYPE_CLOSE_CLIENT_SESSION 0xF2
+#define TF_MESSAGE_TYPE_INVOKE_CLIENT_COMMAND 0xF5
+#define TF_MESSAGE_TYPE_CANCEL_CLIENT_COMMAND 0xF4
+#define TF_MESSAGE_TYPE_MANAGEMENT 0xFE
+
+
+/*
+ * The SChannel error codes.
+ */
+#define S_SUCCESS 0x00000000
+#define S_ERROR_OUT_OF_MEMORY 0xFFFF000C
+
+
+struct tf_command_header {
+ u8 message_size;
+ u8 message_type;
+ u16 message_info;
+ u32 operation_id;
+};
+
+struct tf_answer_header {
+ u8 message_size;
+ u8 message_type;
+ u16 message_info;
+ u32 operation_id;
+ u32 error_code;
+};
+
+/*
+ * CREATE_DEVICE_CONTEXT command message.
+ */
+struct tf_command_create_device_context {
+ u8 message_size;
+ u8 message_type;
+ u16 message_info_rfu;
+ u32 operation_id;
+ u32 device_context_id;
+};
+
+/*
+ * CREATE_DEVICE_CONTEXT answer message.
+ */
+struct tf_answer_create_device_context {
+ u8 message_size;
+ u8 message_type;
+ u16 message_info_rfu;
+ /* an opaque Normal World identifier for the operation */
+ u32 operation_id;
+ u32 error_code;
+ /* an opaque Normal World identifier for the device context */
+ u32 device_context;
+};
+
+/*
+ * DESTROY_DEVICE_CONTEXT command message.
+ */
+struct tf_command_destroy_device_context {
+ u8 message_size;
+ u8 message_type;
+ u16 message_info_rfu;
+ u32 operation_id;
+ u32 device_context;
+};
+
+/*
+ * DESTROY_DEVICE_CONTEXT answer message.
+ */
+struct tf_answer_destroy_device_context {
+ u8 message_size;
+ u8 message_type;
+ u16 message_info_rfu;
+ /* an opaque Normal World identifier for the operation */
+ u32 operation_id;
+ u32 error_code;
+ u32 device_context_id;
+};
+
+/*
+ * OPEN_CLIENT_SESSION command message.
+ */
+struct tf_command_open_client_session {
+ u8 message_size;
+ u8 message_type;
+ u16 param_types;
+ /* an opaque Normal World identifier for the operation */
+ u32 operation_id;
+ u32 device_context;
+ u32 cancellation_id;
+ u64 timeout;
+ struct tf_uuid destination_uuid;
+ union tf_command_param params[4];
+ u32 login_type;
+ /*
+ * Size = 0 for public, [16] for group identification, [20] for
+ * authentication
+ */
+ u8 login_data[20];
+};
+
+/*
+ * OPEN_CLIENT_SESSION answer message.
+ */
+struct tf_answer_open_client_session {
+ u8 message_size;
+ u8 message_type;
+ u8 error_origin;
+ u8 __reserved;
+ /* an opaque Normal World identifier for the operation */
+ u32 operation_id;
+ u32 error_code;
+ u32 client_session;
+ union tf_answer_param answers[4];
+};
+
+/*
+ * CLOSE_CLIENT_SESSION command message.
+ */
+struct tf_command_close_client_session {
+ u8 message_size;
+ u8 message_type;
+ u16 message_info_rfu;
+ /* an opaque Normal World identifier for the operation */
+ u32 operation_id;
+ u32 device_context;
+ u32 client_session;
+};
+
+/*
+ * CLOSE_CLIENT_SESSION answer message.
+ */
+struct tf_answer_close_client_session {
+ u8 message_size;
+ u8 message_type;
+ u16 message_info_rfu;
+ /* an opaque Normal World identifier for the operation */
+ u32 operation_id;
+ u32 error_code;
+};
+
+
+/*
+ * REGISTER_SHARED_MEMORY command message
+ */
+struct tf_command_register_shared_memory {
+ u8 message_size;
+ u8 message_type;
+ u16 memory_flags;
+ u32 operation_id;
+ u32 device_context;
+ u32 block_id;
+ u32 shared_mem_size;
+ u32 shared_mem_start_offset;
+ u32 shared_mem_descriptors[TF_MAX_COARSE_PAGES];
+};
+
+/*
+ * REGISTER_SHARED_MEMORY answer message.
+ */
+struct tf_answer_register_shared_memory {
+ u8 message_size;
+ u8 message_type;
+ u16 message_info_rfu;
+ /* an opaque Normal World identifier for the operation */
+ u32 operation_id;
+ u32 error_code;
+ u32 block;
+};
+
+/*
+ * RELEASE_SHARED_MEMORY command message.
+ */
+struct tf_command_release_shared_memory {
+ u8 message_size;
+ u8 message_type;
+ u16 message_info_rfu;
+ /* an opaque Normal World identifier for the operation */
+ u32 operation_id;
+ u32 device_context;
+ u32 block;
+};
+
+/*
+ * RELEASE_SHARED_MEMORY answer message.
+ */
+struct tf_answer_release_shared_memory {
+ u8 message_size;
+ u8 message_type;
+ u16 message_info_rfu;
+ u32 operation_id;
+ u32 error_code;
+ u32 block_id;
+};
+
+/*
+ * INVOKE_CLIENT_COMMAND command message.
+ */
+struct tf_command_invoke_client_command {
+ u8 message_size;
+ u8 message_type;
+ u16 param_types;
+ u32 operation_id;
+ u32 device_context;
+ u32 client_session;
+ u64 timeout;
+ u32 cancellation_id;
+ u32 client_command_identifier;
+ union tf_command_param params[4];
+};
+
+/*
+ * INVOKE_CLIENT_COMMAND command answer.
+ */
+struct tf_answer_invoke_client_command {
+ u8 message_size;
+ u8 message_type;
+ u8 error_origin;
+ u8 __reserved;
+ u32 operation_id;
+ u32 error_code;
+ union tf_answer_param answers[4];
+};
+
+/*
+ * CANCEL_CLIENT_OPERATION command message.
+ */
+struct tf_command_cancel_client_operation {
+ u8 message_size;
+ u8 message_type;
+ u16 message_info_rfu;
+ /* an opaque Normal World identifier for the operation */
+ u32 operation_id;
+ u32 device_context;
+ u32 client_session;
+ u32 cancellation_id;
+};
+
+struct tf_answer_cancel_client_operation {
+ u8 message_size;
+ u8 message_type;
+ u16 message_info_rfu;
+ u32 operation_id;
+ u32 error_code;
+};
+
+/*
+ * MANAGEMENT command message.
+ */
+struct tf_command_management {
+ u8 message_size;
+ u8 message_type;
+ u16 command;
+ u32 operation_id;
+ u32 w3b_size;
+ u32 w3b_start_offset;
+ u32 shared_mem_descriptors[1];
+};
+
+/*
+ * POWER_MANAGEMENT answer message.
+ * The message does not provide message specific parameters.
+ * Therefore no need to define a specific answer structure
+ */
+
+/*
+ * Structure for L2 messages
+ */
+union tf_command {
+ struct tf_command_header header;
+ struct tf_command_create_device_context create_device_context;
+ struct tf_command_destroy_device_context destroy_device_context;
+ struct tf_command_open_client_session open_client_session;
+ struct tf_command_close_client_session close_client_session;
+ struct tf_command_register_shared_memory register_shared_memory;
+ struct tf_command_release_shared_memory release_shared_memory;
+ struct tf_command_invoke_client_command invoke_client_command;
+ struct tf_command_cancel_client_operation cancel_client_operation;
+ struct tf_command_management management;
+};
+
+/*
+ * Structure for any L2 answer
+ */
+
+union tf_answer {
+ struct tf_answer_header header;
+ struct tf_answer_create_device_context create_device_context;
+ struct tf_answer_open_client_session open_client_session;
+ struct tf_answer_close_client_session close_client_session;
+ struct tf_answer_register_shared_memory register_shared_memory;
+ struct tf_answer_release_shared_memory release_shared_memory;
+ struct tf_answer_invoke_client_command invoke_client_command;
+ struct tf_answer_destroy_device_context destroy_device_context;
+ struct tf_answer_cancel_client_operation cancel_client_operation;
+};
+
+/* Structure of the Communication Buffer */
+struct tf_l1_shared_buffer {
+ #ifdef CONFIG_TF_ZEBRA
+ u32 exit_code;
+ u32 l1_shared_buffer_descr;
+ u32 backing_store_addr;
+ u32 backext_storage_addr;
+ u32 workspace_addr;
+ u32 workspace_size;
+ u32 conf_descriptor;
+ u32 conf_size;
+ u32 conf_offset;
+ u32 protocol_version;
+ u32 rpc_command;
+ u32 rpc_status;
+ u8 reserved1[16];
+ #else
+ u32 config_flag_s;
+ u32 w3b_size_max_s;
+ u32 reserved0;
+ u32 w3b_size_current_s;
+ u8 reserved1[48];
+ #endif
+ u8 version_description[TF_DESCRIPTION_BUFFER_LENGTH];
+ u32 status_s;
+ u32 reserved2;
+ u32 sync_serial_n;
+ u32 sync_serial_s;
+ u64 time_n[2];
+ u64 timeout_s[2];
+ u32 first_command;
+ u32 first_free_command;
+ u32 first_answer;
+ u32 first_free_answer;
+ u32 w3b_descriptors[128];
+ #ifdef CONFIG_TF_ZEBRA
+ u8 rpc_trace_buffer[140];
+ u8 rpc_cus_buffer[180];
+ #else
+ u8 reserved3[320];
+ #endif
+ u32 command_queue[TF_N_MESSAGE_QUEUE_CAPACITY];
+ u32 answer_queue[TF_S_ANSWER_QUEUE_CAPACITY];
+};
+
+
+/*
+ * tf_version_information_buffer structure description
+ * Description of the sVersionBuffer handed over from user space to kernel space
+ * This field is filled by the driver during a CREATE_DEVICE_CONTEXT ioctl
+ * and handed back to user space
+ */
+struct tf_version_information_buffer {
+ u8 driver_description[65];
+ u8 secure_world_description[65];
+};
+
+
+/* The IOCTLs the driver supports */
+#include <linux/ioctl.h>
+
+#define IOCTL_TF_GET_VERSION _IO('z', 0)
+#define IOCTL_TF_EXCHANGE _IOWR('z', 1, union tf_command)
+#define IOCTL_TF_GET_DESCRIPTION _IOR('z', 2, \
+ struct tf_version_information_buffer)
+
+#endif /* !defined(__TF_PROTOCOL_H__) */
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