1 /*
2  * Copyright (C) 2015 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 #ifndef TRUSTY_KEYMASTER_TRUSTY_KEYMASTER_IPC_H_
18 #define TRUSTY_KEYMASTER_TRUSTY_KEYMASTER_IPC_H_
19 
20 #include <keymaster/android_keymaster_messages.h>
21 #include <trusty_keymaster/ipc/keymaster_ipc.h>
22 
23 __BEGIN_DECLS
24 
25 const uint32_t TRUSTY_KEYMASTER_RECV_BUF_SIZE = 2 * PAGE_SIZE;
26 const uint32_t TRUSTY_KEYMASTER_SEND_BUF_SIZE =
27         (PAGE_SIZE - sizeof(struct keymaster_message) - 16 /* tipc header */);
28 
29 int trusty_keymaster_connect(void);
30 int trusty_keymaster_call(uint32_t cmd, void* in, uint32_t in_size, uint8_t* out,
31                           uint32_t* out_size);
32 void trusty_keymaster_disconnect(void);
33 
34 keymaster_error_t translate_error(int err);
35 keymaster_error_t trusty_keymaster_send(uint32_t command, const keymaster::Serializable& req,
36                                         keymaster::KeymasterResponse* rsp);
37 
38 __END_DECLS
39 
40 #endif  // TRUSTY_KEYMASTER_TRUSTY_KEYMASTER_IPC_H_
41