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 #include <tee/tee_obj.h> 29 30 #include <stdlib.h> 31 #include <tee_api_defines.h> 32 #include <mm/tee_mmu.h> 33 #include <tee/tee_fs.h> 34 #include <tee/tee_pobj.h> 35 #include <trace.h> 36 37 void tee_obj_add(struct tee_ta_ctx *ctx, struct tee_obj *o) 38 { 39 TAILQ_INSERT_TAIL(&ctx->objects, o, link); 40 } 41 42 TEE_Result tee_obj_get(struct tee_ta_ctx *ctx, uint32_t obj_id, 43 struct tee_obj **obj) 44 { 45 struct tee_obj *o; 46 47 TAILQ_FOREACH(o, &ctx->objects, link) { 48 if (obj_id == (vaddr_t)o) { 49 *obj = o; 50 return TEE_SUCCESS; 51 } 52 } 53 return TEE_ERROR_BAD_PARAMETERS; 54 } 55 56 void tee_obj_close(struct tee_ta_ctx *ctx, struct tee_obj *o) 57 { 58 TAILQ_REMOVE(&ctx->objects, o, link); 59 60 if ((o->info.handleFlags & TEE_HANDLE_FLAG_PERSISTENT) && o->fd >= 0) { 61 tee_file_ops.close(o->fd); 62 tee_pobj_release(o->pobj); 63 } 64 65 if (o->cleanup) 66 o->cleanup(o->data, true); 67 free(o->data); 68 free(o); 69 } 70 71 void tee_obj_close_all(struct tee_ta_ctx *ctx) 72 { 73 struct tee_obj_head *objects = &ctx->objects; 74 75 while (!TAILQ_EMPTY(objects)) 76 tee_obj_close(ctx, TAILQ_FIRST(objects)); 77 } 78