security/tlk_driver/ote_protocol.h - kernel/tegra - Git at Google

 /*
  * Copyright (c) 2013-2014 NVIDIA Corporation. 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 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 Street, Fifth Floor, Boston, MA  02110-1301, USA.
  */

 #ifndef __OTE_PROTOCOL_H__
 #define __OTE_PROTOCOL_H__

 #ifdef CONFIG_TRUSTY
 #include <linux/trusty/smcall.h>
 #endif

 #include "ote_types.h"

 #define TE_IOCTL_MAGIC_NUMBER ('t')
 #define TE_IOCTL_OPEN_CLIENT_SESSION \
 	_IOWR(TE_IOCTL_MAGIC_NUMBER, 0x10, union te_cmd)
 #define TE_IOCTL_CLOSE_CLIENT_SESSION \
 	_IOWR(TE_IOCTL_MAGIC_NUMBER, 0x11, union te_cmd)
 #define TE_IOCTL_LAUNCH_OPERATION \
 	_IOWR(TE_IOCTL_MAGIC_NUMBER, 0x14, union te_cmd)

 /* ioctls using new structs (eventually to replace current ioctls) */
 #define TE_IOCTL_OPEN_CLIENT_SESSION_COMPAT \
 	_IOWR(TE_IOCTL_MAGIC_NUMBER, 0x10, union te_cmd_compat)
 #define TE_IOCTL_CLOSE_CLIENT_SESSION_COMPAT \
 	_IOWR(TE_IOCTL_MAGIC_NUMBER, 0x11, union te_cmd_compat)
 #define TE_IOCTL_LAUNCH_OPERATION_COMPAT \
 	_IOWR(TE_IOCTL_MAGIC_NUMBER, 0x14, union te_cmd_compat)

 #define TE_IOCTL_SS_NEW_REQ_LEGACY \
 	_IOR(TE_IOCTL_MAGIC_NUMBER,  0x20, struct te_ss_op_legacy)
 #define TE_IOCTL_SS_REQ_COMPLETE_LEGACY \
 	_IOWR(TE_IOCTL_MAGIC_NUMBER, 0x21, struct te_ss_op_legacy)

 /* ioctls using new SS structs (eventually to replace current SS ioctls) */
 #define TE_IOCTL_SS_NEW_REQ \
 	_IOR(TE_IOCTL_MAGIC_NUMBER,  0x20, struct te_ss_op)
 #define TE_IOCTL_SS_REQ_COMPLETE \
 	_IOWR(TE_IOCTL_MAGIC_NUMBER, 0x21, struct te_ss_op)

 /* secure storage ioctl */
 #define TE_IOCTL_SS_CMD \
 	_IOR(TE_IOCTL_MAGIC_NUMBER,  0x30, int)

 #define TE_IOCTL_SS_CMD_GET_NEW_REQ	1
 #define TE_IOCTL_SS_CMD_REQ_COMPLETE	2

 #define TE_IOCTL_MIN_NR	_IOC_NR(TE_IOCTL_OPEN_CLIENT_SESSION)
 #define TE_IOCTL_MAX_NR	_IOC_NR(TE_IOCTL_SS_CMD)

 /* shared buffer is 2 pages: 1st are requests, 2nd are params */
 #define TE_CMD_DESC_MAX	(PAGE_SIZE / sizeof(struct te_request))
 #define TE_PARAM_MAX	(PAGE_SIZE / sizeof(struct te_oper_param))

 #define TE_CMD_DESC_MAX_COMPAT \
 	(PAGE_SIZE / sizeof(struct te_request_compat))
 #define TE_PARAM_MAX_COMPAT \
 	(PAGE_SIZE / sizeof(struct te_oper_param_compat))

 #define MAX_EXT_SMC_ARGS	12

 struct tlk_info;

 extern struct mutex smc_lock;
 extern struct tlk_device tlk_dev;

 uint32_t _tlk_generic_smc(uint32_t arg0, uintptr_t arg1, uintptr_t arg2);
 uint32_t tlk_generic_smc(struct tlk_info *info, uint32_t arg0,
 			 uintptr_t arg1, uintptr_t arg2, uintptr_t arg3);
 uint32_t _tlk_extended_smc(uintptr_t *args);
 uint32_t tlk_extended_smc(struct tlk_info *info, uintptr_t *args);
 void tlk_irq_handler(void);
 int tlk_device_init(struct tlk_info *info);

 /* errors returned by secure world in reponse to SMC calls */
 enum {
 	TE_ERROR_PREEMPT_BY_IRQ = 0xFFFFFFFD,
 	TE_ERROR_PREEMPT_BY_FS = 0xFFFFFFFE,
 };

 struct tlk_device {
 	struct te_request *req_addr;
 	dma_addr_t req_addr_phys;
 	struct te_oper_param *param_addr;
 	dma_addr_t param_addr_phys;

 	struct te_oper_param_page_info *param_pages;
 	dma_addr_t param_pages_phys;
 	size_t param_pages_size;
 	size_t param_pages_tail;

 	struct te_request_compat *req_addr_compat;
 	struct te_oper_param_compat *param_addr_compat;

 	char *req_param_buf;

 	unsigned long *param_bitmap;

 	struct list_head used_cmd_list;
 	struct list_head free_cmd_list;

 	struct tlk_info *tlk_info;
 };

 struct te_cmd_req_desc {
 	struct te_request *req_addr;
 	struct list_head list;
 };

 struct te_cmd_req_desc_compat {
 	struct te_request_compat *req_addr;
 	struct list_head list;
 };

 struct te_shmem_desc {
 	struct list_head list;
 	uint32_t type;
 	void *buffer;
 	size_t size;
 	unsigned long nrpages;
 	struct page *pages[];
 };

 struct te_session {
 	struct rb_node	node;
 	uint32_t	session_id;
 	struct list_head persist_shmem_list;
 };

 struct tlk_context {
 	struct tlk_device *dev;
 	struct rb_root sessions;
 	struct list_head temp_shmem_list;
 	struct list_head temp_persist_shmem_list;
 	bool is_ss_daemon;
 };

 enum {
 #ifndef CONFIG_TRUSTY
 	/* Trusted Application Calls */
 	TE_SMC_OPEN_SESSION		= 0x30000001,
 	TE_SMC_CLOSE_SESSION		= 0x30000002,
 	TE_SMC_LAUNCH_OPERATION		= 0x30000003,

 	/* Trusted OS calls */
 	TE_SMC_REGISTER_REQ_BUF		= 0x32000002,
 	TE_SMC_REGISTER_IRQ_HANDLER	= 0x32000004,
 	TE_SMC_NS_IRQ_DONE		= 0x32000005,
 	TE_SMC_INIT_LOGGER		= 0x32000007,
 	TE_SMC_SS_REGISTER_HANDLER_LEGACY	= 0x32000008,
 	TE_SMC_SS_REQ_COMPLETE		= 0x32000009,
 	TE_SMC_SS_REGISTER_HANDLER	= 0x32000010,

 	/* SIP (SOC specific) calls.  */
 	TE_SMC_PROGRAM_VPR		= 0x82000003,
 #else
 	TE_SMC_OPEN_SESSION		= SMC_STDCALL_NR(SMC_ENTITY_TRUSTED_APP, 1),
 	TE_SMC_CLOSE_SESSION		= SMC_STDCALL_NR(SMC_ENTITY_TRUSTED_APP, 2),
 	TE_SMC_LAUNCH_OPERATION		= SMC_STDCALL_NR(SMC_ENTITY_TRUSTED_APP, 3),
 	TE_SMC_NS_CB_COMPLETE		= SMC_STDCALL_NR(SMC_ENTITY_TRUSTED_APP, 4),

 	TE_SMC_FC_HAS_NS_WORK		= SMC_FASTCALL_NR(SMC_ENTITY_TRUSTED_APP, 1),

 	/* Trusted OS calls */
 	TE_SMC_REGISTER_REQ_BUF		= SMC_STDCALL_NR(SMC_ENTITY_TRUSTED_OS, 2),
 	TE_SMC_REGISTER_IRQ_HANDLER	= SMC_STDCALL_NR(SMC_ENTITY_TRUSTED_OS, 4),
 	TE_SMC_NS_IRQ_DONE		= SMC_STDCALL_NR(SMC_ENTITY_TRUSTED_OS, 5),
 	TE_SMC_INIT_LOGGER		= SMC_STDCALL_NR(SMC_ENTITY_TRUSTED_OS, 7),
 	TE_SMC_SS_REGISTER_HANDLER_LEGACY = SMC_STDCALL_NR(SMC_ENTITY_TRUSTED_OS, 8),
 	TE_SMC_SS_REQ_COMPLETE		= SMC_STDCALL_NR(SMC_ENTITY_TRUSTED_OS, 9),
 	TE_SMC_SS_REGISTER_HANDLER	= SMC_STDCALL_NR(SMC_ENTITY_TRUSTED_OS, 10),

 	/* SIP (SOC specific) calls.  */
 	TE_SMC_PROGRAM_VPR		= SMC_STDCALL_NR(SMC_ENTITY_SIP, 3)
 #endif
 };

 enum {
 	TE_PARAM_TYPE_NONE		= 0x0,
 	TE_PARAM_TYPE_INT_RO		= 0x1,
 	TE_PARAM_TYPE_INT_RW		= 0x2,
 	TE_PARAM_TYPE_MEM_RO		= 0x3,
 	TE_PARAM_TYPE_MEM_RW		= 0x4,
 	TE_PARAM_TYPE_PERSIST_MEM_RO	= 0x100,
 	TE_PARAM_TYPE_PERSIST_MEM_RW	= 0x101,
 };

 struct te_oper_param {
 	uint32_t index;
 	uint32_t type;
 	union {
 		struct {
 			uint32_t val;
 		} Int;
 		struct {
 			void  *base;
 			uint32_t len;
 		} Mem;
 	} u;
 	void *next_ptr_user;
 };

 struct te_oper_param_page_info {
 	uint64_t attr;
 };

 struct te_oper_param_compat {
 	uint32_t index;
 	uint32_t type;
 	union {
 		struct {
 			uint32_t val;
 		} Int;
 		struct {
 			uint64_t base;
 			uint32_t len;
 		} Mem;
 	} u;
 	uint64_t next_ptr_user;
 };

 struct te_operation {
 	uint32_t command;
 	struct te_oper_param *list_head;
 	/* Maintain a pointer to tail of list to easily add new param node */
 	struct te_oper_param *list_tail;
 	uint32_t list_count;
 	uint32_t status;
 	uint32_t iterface_side;
 };

 struct te_service_id {
 	uint32_t time_low;
 	uint16_t time_mid;
 	uint16_t time_hi_and_version;
 	uint8_t clock_seq_and_node[8];
 };

 /*
  * OpenSession
  */
 struct te_opensession {
 	struct te_service_id dest_uuid;
 	struct te_operation operation;
 	uint32_t answer;
 };

 /*
  * CloseSession
  */
 struct te_closesession {
 	uint32_t	session_id;
 	uint32_t	answer;
 };

 /*
  * LaunchOperation
  */
 struct te_launchop {
 	uint32_t		session_id;
 	struct te_operation	operation;
 	uint32_t		answer;
 };

 union te_cmd {
 	struct te_opensession	opensession;
 	struct te_closesession	closesession;
 	struct te_launchop	launchop;
 };

 /*
  * Compat versions of the original structs (eventually to replace
  * the old structs, once the lib/TLK kernel changes are in).
  */
 struct te_operation_compat {
 	uint32_t	command;
 	uint32_t	status;
 	uint64_t	list_head;
 	uint64_t	list_tail;
 	uint32_t	list_count;
 	uint32_t	interface_side;
 };

 /*
  * OpenSession
  */
 struct te_opensession_compat {
 	struct te_service_id		dest_uuid;
 	struct te_operation_compat	operation;
 	uint64_t			answer;
 };

 /*
  * CloseSession
  */
 struct te_closesession_compat {
 	uint32_t	session_id;
 	uint64_t	answer;
 };

 /*
  * LaunchOperation
  */
 struct te_launchop_compat {
 	uint32_t			session_id;
 	struct te_operation_compat	operation;
 	uint64_t			answer;
 };

 union te_cmd_compat {
 	struct te_opensession_compat	opensession;
 	struct te_closesession_compat	closesession;
 	struct te_launchop_compat	launchop;
 };

 struct te_request {
 	uint32_t		type;
 	uint32_t		session_id;
 	uint32_t		command_id;
 	struct te_oper_param	*params;
 	uint32_t		params_size;
 	uint32_t		dest_uuid[4];
 	uint32_t		result;
 	uint32_t		result_origin;
 };

 struct te_request_compat {
 	uint32_t		type;
 	uint32_t		session_id;
 	uint32_t		command_id;
 	uint64_t		params;
 	uint32_t		params_size;
 	uint32_t		dest_uuid[4];
 	uint32_t		result;
 	uint32_t		result_origin;
 };

 struct te_answer {
 	uint32_t	result;
 	uint32_t	session_id;
 	uint32_t	result_origin;
 };

 void te_open_session(struct te_opensession *cmd,
 	struct te_request *request,
 	struct tlk_context *context);

 void te_close_session(struct te_closesession *cmd,
 	struct te_request *request,
 	struct tlk_context *context);

 void te_launch_operation(struct te_launchop *cmd,
 	struct te_request *request,
 	struct tlk_context *context);

 void te_open_session_compat(struct te_opensession_compat *cmd,
 	struct te_request_compat *request,
 	struct tlk_context *context);

 void te_close_session_compat(struct te_closesession_compat *cmd,
 	struct te_request_compat *request,
 	struct tlk_context *context);

 void te_launch_operation_compat(struct te_launchop_compat *cmd,
 	struct te_request_compat *request,
 	struct tlk_context *context);

 #define SS_OP_MAX_DATA_SIZE	0x1000
 struct te_ss_op {
 	uint32_t	req_size;
 	uint8_t		data[SS_OP_MAX_DATA_SIZE];
 };

 int tlk_ss_init(struct tlk_info *info);
 int tlk_ss_init_legacy(struct tlk_info *info);

 struct te_ss_op_legacy {
 	uint8_t		data[SS_OP_MAX_DATA_SIZE];
 };

 int te_handle_ss_ioctl_legacy(struct file *file, unsigned int ioctl_num,
 		unsigned long ioctl_param);
 int te_handle_ss_ioctl(struct file *file, unsigned int ioctl_num,
 		unsigned long ioctl_param);
 int te_handle_fs_ioctl(struct file *file, unsigned int ioctl_num,
 		unsigned long ioctl_param);

 int ote_logger_init(struct tlk_info *tlk_info);

 void ote_print_logs(void);
 uint32_t tlk_ss_op(void);
 void tlk_ss_close(void);

 int te_fill_page_info(struct te_oper_param_page_info *pg_inf,
 		unsigned long start, struct page *page,
 		struct vm_area_struct *vma);

 #endif
	/*
	* Copyright (c) 2013-2014 NVIDIA Corporation. 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 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 Street, Fifth Floor, Boston, MA 02110-1301, USA.
	*/

	#ifndef __OTE_PROTOCOL_H__
	#define __OTE_PROTOCOL_H__

	#ifdef CONFIG_TRUSTY
	#include <linux/trusty/smcall.h>
	#endif

	#include "ote_types.h"

	#define TE_IOCTL_MAGIC_NUMBER ('t')
	#define TE_IOCTL_OPEN_CLIENT_SESSION \
	_IOWR(TE_IOCTL_MAGIC_NUMBER, 0x10, union te_cmd)
	#define TE_IOCTL_CLOSE_CLIENT_SESSION \
	_IOWR(TE_IOCTL_MAGIC_NUMBER, 0x11, union te_cmd)
	#define TE_IOCTL_LAUNCH_OPERATION \
	_IOWR(TE_IOCTL_MAGIC_NUMBER, 0x14, union te_cmd)

	/* ioctls using new structs (eventually to replace current ioctls) */
	#define TE_IOCTL_OPEN_CLIENT_SESSION_COMPAT \
	_IOWR(TE_IOCTL_MAGIC_NUMBER, 0x10, union te_cmd_compat)
	#define TE_IOCTL_CLOSE_CLIENT_SESSION_COMPAT \
	_IOWR(TE_IOCTL_MAGIC_NUMBER, 0x11, union te_cmd_compat)
	#define TE_IOCTL_LAUNCH_OPERATION_COMPAT \
	_IOWR(TE_IOCTL_MAGIC_NUMBER, 0x14, union te_cmd_compat)

	#define TE_IOCTL_SS_NEW_REQ_LEGACY \
	_IOR(TE_IOCTL_MAGIC_NUMBER, 0x20, struct te_ss_op_legacy)
	#define TE_IOCTL_SS_REQ_COMPLETE_LEGACY \
	_IOWR(TE_IOCTL_MAGIC_NUMBER, 0x21, struct te_ss_op_legacy)

	/* ioctls using new SS structs (eventually to replace current SS ioctls) */
	#define TE_IOCTL_SS_NEW_REQ \
	_IOR(TE_IOCTL_MAGIC_NUMBER, 0x20, struct te_ss_op)
	#define TE_IOCTL_SS_REQ_COMPLETE \
	_IOWR(TE_IOCTL_MAGIC_NUMBER, 0x21, struct te_ss_op)

	/* secure storage ioctl */
	#define TE_IOCTL_SS_CMD \
	_IOR(TE_IOCTL_MAGIC_NUMBER, 0x30, int)

	#define TE_IOCTL_SS_CMD_GET_NEW_REQ 1
	#define TE_IOCTL_SS_CMD_REQ_COMPLETE 2

	#define TE_IOCTL_MIN_NR _IOC_NR(TE_IOCTL_OPEN_CLIENT_SESSION)
	#define TE_IOCTL_MAX_NR _IOC_NR(TE_IOCTL_SS_CMD)

	/* shared buffer is 2 pages: 1st are requests, 2nd are params */
	#define TE_CMD_DESC_MAX (PAGE_SIZE / sizeof(struct te_request))
	#define TE_PARAM_MAX (PAGE_SIZE / sizeof(struct te_oper_param))

	#define TE_CMD_DESC_MAX_COMPAT \
	(PAGE_SIZE / sizeof(struct te_request_compat))
	#define TE_PARAM_MAX_COMPAT \
	(PAGE_SIZE / sizeof(struct te_oper_param_compat))

	#define MAX_EXT_SMC_ARGS 12

	struct tlk_info;

	extern struct mutex smc_lock;
	extern struct tlk_device tlk_dev;

	uint32_t _tlk_generic_smc(uint32_t arg0, uintptr_t arg1, uintptr_t arg2);
	uint32_t tlk_generic_smc(struct tlk_info *info, uint32_t arg0,
	uintptr_t arg1, uintptr_t arg2, uintptr_t arg3);
	uint32_t _tlk_extended_smc(uintptr_t *args);
	uint32_t tlk_extended_smc(struct tlk_info info, uintptr_t args);
	void tlk_irq_handler(void);
	int tlk_device_init(struct tlk_info *info);

	/* errors returned by secure world in reponse to SMC calls */
	enum {
	TE_ERROR_PREEMPT_BY_IRQ = 0xFFFFFFFD,
	TE_ERROR_PREEMPT_BY_FS = 0xFFFFFFFE,
	};

	struct tlk_device {
	struct te_request *req_addr;
	dma_addr_t req_addr_phys;
	struct te_oper_param *param_addr;
	dma_addr_t param_addr_phys;

	struct te_oper_param_page_info *param_pages;
	dma_addr_t param_pages_phys;
	size_t param_pages_size;
	size_t param_pages_tail;

	struct te_request_compat *req_addr_compat;
	struct te_oper_param_compat *param_addr_compat;

	char *req_param_buf;

	unsigned long *param_bitmap;

	struct list_head used_cmd_list;
	struct list_head free_cmd_list;

	struct tlk_info *tlk_info;
	};

	struct te_cmd_req_desc {
	struct te_request *req_addr;
	struct list_head list;
	};

	struct te_cmd_req_desc_compat {
	struct te_request_compat *req_addr;
	struct list_head list;
	};

	struct te_shmem_desc {
	struct list_head list;
	uint32_t type;
	void *buffer;
	size_t size;
	unsigned long nrpages;
	struct page *pages[];
	};

	struct te_session {
	struct rb_node node;
	uint32_t session_id;
	struct list_head persist_shmem_list;
	};

	struct tlk_context {
	struct tlk_device *dev;
	struct rb_root sessions;
	struct list_head temp_shmem_list;
	struct list_head temp_persist_shmem_list;
	bool is_ss_daemon;
	};

	enum {
	#ifndef CONFIG_TRUSTY
	/* Trusted Application Calls */
	TE_SMC_OPEN_SESSION = 0x30000001,
	TE_SMC_CLOSE_SESSION = 0x30000002,
	TE_SMC_LAUNCH_OPERATION = 0x30000003,

	/* Trusted OS calls */
	TE_SMC_REGISTER_REQ_BUF = 0x32000002,
	TE_SMC_REGISTER_IRQ_HANDLER = 0x32000004,
	TE_SMC_NS_IRQ_DONE = 0x32000005,
	TE_SMC_INIT_LOGGER = 0x32000007,
	TE_SMC_SS_REGISTER_HANDLER_LEGACY = 0x32000008,
	TE_SMC_SS_REQ_COMPLETE = 0x32000009,
	TE_SMC_SS_REGISTER_HANDLER = 0x32000010,

	/* SIP (SOC specific) calls. */
	TE_SMC_PROGRAM_VPR = 0x82000003,
	#else
	TE_SMC_OPEN_SESSION = SMC_STDCALL_NR(SMC_ENTITY_TRUSTED_APP, 1),
	TE_SMC_CLOSE_SESSION = SMC_STDCALL_NR(SMC_ENTITY_TRUSTED_APP, 2),
	TE_SMC_LAUNCH_OPERATION = SMC_STDCALL_NR(SMC_ENTITY_TRUSTED_APP, 3),
	TE_SMC_NS_CB_COMPLETE = SMC_STDCALL_NR(SMC_ENTITY_TRUSTED_APP, 4),

	TE_SMC_FC_HAS_NS_WORK = SMC_FASTCALL_NR(SMC_ENTITY_TRUSTED_APP, 1),

	/* Trusted OS calls */
	TE_SMC_REGISTER_REQ_BUF = SMC_STDCALL_NR(SMC_ENTITY_TRUSTED_OS, 2),
	TE_SMC_REGISTER_IRQ_HANDLER = SMC_STDCALL_NR(SMC_ENTITY_TRUSTED_OS, 4),
	TE_SMC_NS_IRQ_DONE = SMC_STDCALL_NR(SMC_ENTITY_TRUSTED_OS, 5),
	TE_SMC_INIT_LOGGER = SMC_STDCALL_NR(SMC_ENTITY_TRUSTED_OS, 7),
	TE_SMC_SS_REGISTER_HANDLER_LEGACY = SMC_STDCALL_NR(SMC_ENTITY_TRUSTED_OS, 8),
	TE_SMC_SS_REQ_COMPLETE = SMC_STDCALL_NR(SMC_ENTITY_TRUSTED_OS, 9),
	TE_SMC_SS_REGISTER_HANDLER = SMC_STDCALL_NR(SMC_ENTITY_TRUSTED_OS, 10),

	/* SIP (SOC specific) calls. */
	TE_SMC_PROGRAM_VPR = SMC_STDCALL_NR(SMC_ENTITY_SIP, 3)
	#endif
	};

	enum {
	TE_PARAM_TYPE_NONE = 0x0,
	TE_PARAM_TYPE_INT_RO = 0x1,
	TE_PARAM_TYPE_INT_RW = 0x2,
	TE_PARAM_TYPE_MEM_RO = 0x3,
	TE_PARAM_TYPE_MEM_RW = 0x4,
	TE_PARAM_TYPE_PERSIST_MEM_RO = 0x100,
	TE_PARAM_TYPE_PERSIST_MEM_RW = 0x101,
	};

	struct te_oper_param {
	uint32_t index;
	uint32_t type;
	union {
	struct {
	uint32_t val;
	} Int;
	struct {
	void *base;
	uint32_t len;
	} Mem;
	} u;
	void *next_ptr_user;
	};

	struct te_oper_param_page_info {
	uint64_t attr;
	};

	struct te_oper_param_compat {
	uint32_t index;
	uint32_t type;
	union {
	struct {
	uint32_t val;
	} Int;
	struct {
	uint64_t base;
	uint32_t len;
	} Mem;
	} u;
	uint64_t next_ptr_user;
	};

	struct te_operation {
	uint32_t command;
	struct te_oper_param *list_head;
	/* Maintain a pointer to tail of list to easily add new param node */
	struct te_oper_param *list_tail;
	uint32_t list_count;
	uint32_t status;
	uint32_t iterface_side;
	};

	struct te_service_id {
	uint32_t time_low;
	uint16_t time_mid;
	uint16_t time_hi_and_version;
	uint8_t clock_seq_and_node[8];
	};

	/*
	* OpenSession
	*/
	struct te_opensession {
	struct te_service_id dest_uuid;
	struct te_operation operation;
	uint32_t answer;
	};

	/*
	* CloseSession
	*/
	struct te_closesession {
	uint32_t session_id;
	uint32_t answer;
	};

	/*
	* LaunchOperation
	*/
	struct te_launchop {
	uint32_t session_id;
	struct te_operation operation;
	uint32_t answer;
	};

	union te_cmd {
	struct te_opensession opensession;
	struct te_closesession closesession;
	struct te_launchop launchop;
	};

	/*
	* Compat versions of the original structs (eventually to replace
	* the old structs, once the lib/TLK kernel changes are in).
	*/
	struct te_operation_compat {
	uint32_t command;
	uint32_t status;
	uint64_t list_head;
	uint64_t list_tail;
	uint32_t list_count;
	uint32_t interface_side;
	};

	/*
	* OpenSession
	*/
	struct te_opensession_compat {
	struct te_service_id dest_uuid;
	struct te_operation_compat operation;
	uint64_t answer;
	};

	/*
	* CloseSession
	*/
	struct te_closesession_compat {
	uint32_t session_id;
	uint64_t answer;
	};

	/*
	* LaunchOperation
	*/
	struct te_launchop_compat {
	uint32_t session_id;
	struct te_operation_compat operation;
	uint64_t answer;
	};

	union te_cmd_compat {
	struct te_opensession_compat opensession;
	struct te_closesession_compat closesession;
	struct te_launchop_compat launchop;
	};

	struct te_request {
	uint32_t type;
	uint32_t session_id;
	uint32_t command_id;
	struct te_oper_param *params;
	uint32_t params_size;
	uint32_t dest_uuid[4];
	uint32_t result;
	uint32_t result_origin;
	};

	struct te_request_compat {
	uint32_t type;
	uint32_t session_id;
	uint32_t command_id;
	uint64_t params;
	uint32_t params_size;
	uint32_t dest_uuid[4];
	uint32_t result;
	uint32_t result_origin;
	};

	struct te_answer {
	uint32_t result;
	uint32_t session_id;
	uint32_t result_origin;
	};

	void te_open_session(struct te_opensession *cmd,
	struct te_request *request,
	struct tlk_context *context);

	void te_close_session(struct te_closesession *cmd,
	struct te_request *request,
	struct tlk_context *context);

	void te_launch_operation(struct te_launchop *cmd,
	struct te_request *request,
	struct tlk_context *context);

	void te_open_session_compat(struct te_opensession_compat *cmd,
	struct te_request_compat *request,
	struct tlk_context *context);

	void te_close_session_compat(struct te_closesession_compat *cmd,
	struct te_request_compat *request,
	struct tlk_context *context);

	void te_launch_operation_compat(struct te_launchop_compat *cmd,
	struct te_request_compat *request,
	struct tlk_context *context);

	#define SS_OP_MAX_DATA_SIZE 0x1000
	struct te_ss_op {
	uint32_t req_size;
	uint8_t data[SS_OP_MAX_DATA_SIZE];
	};

	int tlk_ss_init(struct tlk_info *info);
	int tlk_ss_init_legacy(struct tlk_info *info);

	struct te_ss_op_legacy {
	uint8_t data[SS_OP_MAX_DATA_SIZE];
	};

	int te_handle_ss_ioctl_legacy(struct file *file, unsigned int ioctl_num,
	unsigned long ioctl_param);
	int te_handle_ss_ioctl(struct file *file, unsigned int ioctl_num,
	unsigned long ioctl_param);
	int te_handle_fs_ioctl(struct file *file, unsigned int ioctl_num,
	unsigned long ioctl_param);

	int ote_logger_init(struct tlk_info *tlk_info);

	void ote_print_logs(void);
	uint32_t tlk_ss_op(void);
	void tlk_ss_close(void);

	int te_fill_page_info(struct te_oper_param_page_info *pg_inf,
	unsigned long start, struct page *page,
	struct vm_area_struct *vma);

	#endif