1 /* 2 * Copyright (c) 2013, Google, Inc. All rights reserved 3 * 4 * Permission is hereby granted, free of charge, to any person obtaining 5 * a copy of this software and associated documentation files 6 * (the "Software"), to deal in the Software without restriction, 7 * including without limitation the rights to use, copy, modify, merge, 8 * publish, distribute, sublicense, and/or sell copies of the Software, 9 * and to permit persons to whom the Software is furnished to do so, 10 * subject to the following conditions: 11 * 12 * The above copyright notice and this permission notice shall be 13 * included in all copies or substantial portions of the Software. 14 * 15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 16 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. 18 * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY 19 * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, 20 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE 21 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 22 */ 23 24 #ifndef __LIB_TRUSTY_UCTX_H 25 #define __LIB_TRUSTY_UCTX_H 26 27 #include <stdint.h> 28 #include <sys/types.h> 29 30 #include <lib/trusty/handle.h> 31 #include <lib/trusty/sys_fd.h> 32 33 struct uctx; 34 35 typedef uint32_t handle_id_t; 36 37 #define INVALID_HANDLE_ID ((handle_id_t)0xFFFFFFFF) 38 39 int uctx_create(void* priv, struct uctx** ctx); 40 void uctx_destroy(struct uctx* ctx); 41 void* uctx_get_priv(struct uctx* ctx); 42 struct uctx* current_uctx(void); 43 44 int uctx_handle_install(struct uctx* ctx, 45 struct handle* handle, 46 handle_id_t* id); 47 int uctx_handle_remove(struct uctx* ctx, 48 handle_id_t handle_id, 49 struct handle** handle_ptr); 50 int uctx_handle_get(struct uctx* ctx, 51 handle_id_t handle_id, 52 struct handle** handle_ptr); 53 54 const struct sys_fd_ops* uctx_get_fd_ops(uint32_t fd); 55 56 #endif 57