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/*
* Copyright (c) 2015, Linaro Limited
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef KERNEL_PSEUDO_TA_H
#define KERNEL_PSEUDO_TA_H
#include <assert.h>
#include <compiler.h>
#include <kernel/tee_ta_manager.h>
#include <tee_api_types.h>
#include <user_ta_header.h>
#include <util.h>
#define PTA_MANDATORY_FLAGS (TA_FLAG_SINGLE_INSTANCE | \
TA_FLAG_MULTI_SESSION | \
TA_FLAG_INSTANCE_KEEP_ALIVE)
#define PTA_ALLOWED_FLAGS PTA_MANDATORY_FLAGS
#define PTA_DEFAULT_FLAGS PTA_MANDATORY_FLAGS
struct pseudo_ta_head {
TEE_UUID uuid;
const char *name;
uint32_t flags;
TEE_Result (*create_entry_point)(void);
void (*destroy_entry_point)(void);
TEE_Result (*open_session_entry_point)(uint32_t nParamTypes,
TEE_Param pParams[TEE_NUM_PARAMS],
void **ppSessionContext);
void (*close_session_entry_point)(void *pSessionContext);
TEE_Result (*invoke_command_entry_point)(void *pSessionContext,
uint32_t nCommandID, uint32_t nParamTypes,
TEE_Param pParams[TEE_NUM_PARAMS]);
};
#define pseudo_ta_register(...) static const struct pseudo_ta_head __head \
__used __section("ta_head_section") = { __VA_ARGS__ }
struct pseudo_ta_ctx {
const struct pseudo_ta_head *pseudo_ta;
struct tee_ta_ctx ctx;
};
static inline bool is_pseudo_ta_ctx(struct tee_ta_ctx *ctx)
{
return !(ctx->flags & TA_FLAG_USER_MODE);
}
static inline struct pseudo_ta_ctx *to_pseudo_ta_ctx(struct tee_ta_ctx *ctx)
{
assert(is_pseudo_ta_ctx(ctx));
return container_of(ctx, struct pseudo_ta_ctx, ctx);
}
TEE_Result tee_ta_init_pseudo_ta_session(const TEE_UUID *uuid,
struct tee_ta_session *s);
#endif /* KERNEL_PSEUDO_TA_H */
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