core/include/tee/tee_svc_storage.h

   1 /*
   2  * Copyright (c) 2014, STMicroelectronics International N.V.
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions are met:
   7  *
   8  * 1. Redistributions of source code must retain the above copyright notice,
   9  * this list of conditions and the following disclaimer.
  10  *
  11  * 2. Redistributions in binary form must reproduce the above copyright notice,
  12  * this list of conditions and the following disclaimer in the documentation
  13  * and/or other materials provided with the distribution.
  14  *
  15  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  16  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  17  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  18  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
  19  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  20  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  21  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  22  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  23  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  24  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  25  * POSSIBILITY OF SUCH DAMAGE.
  26  */
  27
  28 #ifndef TEE_SVC_STORAGE_H
  29 #define TEE_SVC_STORAGE_H
  30
  31 #include <tee_api_types.h>
  32 #include <kernel/tee_ta_manager.h>
  33 #include <tee/tee_fs.h>
  34
  35 /*
  36  * Persistant Object Functions
  37  */
  38 TEE_Result syscall_storage_obj_open(unsigned long storage_id, void *object_id,
  39                         size_t object_id_len, unsigned long flags,
  40                         uint32_t *obj);
  41
  42 TEE_Result syscall_storage_obj_create(unsigned long storage_id, void *object_id,
  43                         size_t object_id_len, unsigned long flags,
  44                         unsigned long attr, void *data, size_t len,
  45                         uint32_t *obj);
  46
  47 TEE_Result syscall_storage_obj_del(unsigned long obj);
  48
  49 TEE_Result syscall_storage_obj_rename(unsigned long obj, void *object_id,
  50                         size_t object_id_len);
  51
  52 /*
  53  * Persistent Object Enumeration Functions
  54  */
  55 TEE_Result syscall_storage_alloc_enum(uint32_t *obj_enum);
  56
  57 TEE_Result syscall_storage_free_enum(unsigned long obj_enum);
  58
  59 TEE_Result syscall_storage_reset_enum(unsigned long obj_enum);
  60
  61 TEE_Result syscall_storage_start_enum(unsigned long obj_enum,
  62                         unsigned long storage_id);
  63
  64 TEE_Result syscall_storage_next_enum(unsigned long obj_enum,
  65                         TEE_ObjectInfo *info, void *obj_id, uint64_t *len);
  66
  67 /*
  68  * Data Stream Access Functions
  69  */
  70 TEE_Result syscall_storage_obj_read(unsigned long obj, void *data, size_t len,
  71                         uint64_t *count);
  72
  73 TEE_Result syscall_storage_obj_write(unsigned long obj, void *data,
  74                         size_t len);
  75
  76 TEE_Result syscall_storage_obj_trunc(unsigned long obj, size_t len);
  77
  78 TEE_Result syscall_storage_obj_seek(unsigned long obj, int32_t offset,
  79                                     unsigned long whence);
  80
  81 void tee_svc_storage_close_all_enum(struct user_ta_ctx *utc);
  82
  83 void tee_svc_storage_init(void);
  84
  85 char *tee_svc_storage_create_filename(struct tee_ta_session *sess,
  86                                       void *object_id,
  87                                       uint32_t object_id_len,
  88                                       bool transient);
  89
  90 char *tee_svc_storage_create_dirname(struct tee_ta_session *sess);
  91
  92 #endif /* TEE_SVC_STORAGE_H */