1/*
2 * Copyright (c) 2024 Huawei Device Co., Ltd.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 *     http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15#include <string.h>
16#include <sys/ioctl.h>
17#include <fcntl.h>
18#include <unistd.h>
19#include "bootstage.h"
20#include "init_log.h"
21#include "init_module_engine.h"
22
23#define SA_MAIN_PATH ("/system/bin/sa_main")
24
25#define OH_ENCAPS_PROC_TYPE_BASE 0x18
26#define OH_ENCAPS_MAGIC 'E'
27#define OH_PROC_SYS 3
28#define SET_PROC_TYPE_CMD _IOW(OH_ENCAPS_MAGIC, OH_ENCAPS_PROC_TYPE_BASE, uint32_t)
29
30static void SetEncapsFlag(uint32_t flag)
31{
32    int fd = 0;
33    int ret = 0;
34
35    fd = open("/dev/encaps", O_RDWR);
36    if (fd < 0) {
37        INIT_LOGI("SetEncapsFlag open failed, maybe this device is not supported");
38        return;
39    }
40
41    ret = ioctl(fd, SET_PROC_TYPE_CMD, &flag);
42    if (ret != 0) {
43        close(fd);
44        INIT_LOGE("SetEncapsFlag ioctl failed");
45        return;
46    }
47
48    close(fd);
49}
50
51static void SetEncapsProcType(SERVICE_INFO_CTX *serviceCtx)
52{
53    if (serviceCtx->reserved == NULL) {
54        return;
55    }
56    if (strncmp(SA_MAIN_PATH, serviceCtx->reserved, strlen(SA_MAIN_PATH)) == 0) {
57        SetEncapsFlag(OH_PROC_SYS);
58    }
59}
60
61MODULE_CONSTRUCTOR(void)
62{
63    // Add hook to set encaps flag
64    InitAddServiceHook(SetEncapsProcType, INIT_SERVICE_SET_PERMS_BEFORE);
65}
66