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mTower/tee/tee/tee_obj.c
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| // SPDX-License-Identifier: BSD-2-Clause | |
| /* | |
| * Copyright (c) 2014, STMicroelectronics International N.V. | |
| * 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. | |
| */ | |
| #include <tee/tee_obj.h> | |
| #include <stdlib.h> | |
| #include <tee_api_defines.h> | |
| //#include <mm/tee_mmu.h> | |
| #include <tee/tee_fs.h> | |
| #include <tee/tee_pobj.h> | |
| #include <trace.h> | |
| //#include <tee/tee_svc_storage.h> | |
| #include <tee/tee_svc_cryp.h> | |
| #include <kernel/user_ta.h> | |
| void tee_obj_add(struct user_ta_ctx *utc, struct tee_obj *o) | |
| { | |
| TAILQ_INSERT_TAIL(&utc->objects, o, link); | |
| } | |
| TEE_Result tee_obj_get(struct user_ta_ctx *utc, uint32_t obj_id, | |
| struct tee_obj **obj) | |
| { | |
| struct tee_obj *o; | |
| TAILQ_FOREACH(o, &utc->objects, link) { | |
| if (obj_id == (vaddr_t)o) { | |
| *obj = o; | |
| return TEE_SUCCESS; | |
| } | |
| } | |
| return TEE_ERROR_BAD_PARAMETERS; | |
| } | |
| void tee_obj_close(struct user_ta_ctx *utc, struct tee_obj *o) | |
| { | |
| TAILQ_REMOVE(&utc->objects, o, link); | |
| if ((o->info.handleFlags & TEE_HANDLE_FLAG_PERSISTENT)) { | |
| o->pobj->fops->close(&o->fh); | |
| tee_pobj_release(o->pobj); | |
| } | |
| tee_obj_free(o); | |
| } | |
| void tee_obj_close_all(struct user_ta_ctx *utc) | |
| { | |
| struct tee_obj_head *objects = &utc->objects; | |
| while (!TAILQ_EMPTY(objects)) | |
| tee_obj_close(utc, TAILQ_FIRST(objects)); | |
| } | |
| TEE_Result tee_obj_verify(struct tee_ta_session *sess, struct tee_obj *o) | |
| { | |
| TEE_Result res; | |
| const struct tee_file_operations *fops = o->pobj->fops; | |
| struct tee_file_handle *fh = NULL; | |
| if (!fops) | |
| return TEE_ERROR_STORAGE_NOT_AVAILABLE; | |
| res = fops->open(o->pobj, NULL, &fh); | |
| if (res == TEE_ERROR_CORRUPT_OBJECT) { | |
| EMSG("Object corrupt\n"); | |
| fops->remove(o->pobj); | |
| tee_obj_close(to_user_ta_ctx(sess->ctx), o); | |
| } | |
| fops->close(&fh); | |
| return res; | |
| } | |
| struct tee_obj *tee_obj_alloc(void) | |
| { | |
| return calloc(1, sizeof(struct tee_obj)); | |
| } | |
| void tee_obj_free(struct tee_obj *o) | |
| { | |
| if (o) { | |
| tee_obj_attr_free(o); | |
| free(o->attr); | |
| free(o); | |
| } | |
| } |