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标题: rk3568下SoftBusDumpDeviceInfo执行错误 [打印本页]

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作者: shixiaocheng    时间: 2023-12-21 10:33
标题: rk3568下SoftBusDumpDeviceInfo执行错误
[md]### 【问题描述】

1. 介绍问题现象和发生的背景
   命令行运行SoftBusDumpDeviceInfo，测试分布式能力。
2. 相关的代码（请勿使用截图）
3. 运行结果、错误截图
   #SoftBusDumpDeviceInfo
   
   ------Local Device Info------
   4 nStackXLog: SetLogCallback:[76] :log callback changed
   LnnGetLocalNodeInfo Fail!
4. 我尝试过的解决方法和结果
   hilog中看到部分信息
   12-21 09:38:28.903   605   989 I C015c0/dsoftbus: [COMM]SoftBusServerStub::OnReceived, code = 148
   12-21 09:38:28.903   605   989 I C015c0/dsoftbus: [COMM]access token permission ohos.permission.DI
   STRIBUTED_DATASYNC denied!
   12-21 09:38:28.903  1841  1841 E C015c0/dsoftbus: [LNN]GetLocalDeviceInfo send request failed!
   12-21 09:38:28.903  1841  1841 E C015c0/dsoftbus: [LNN]ServerIpcGetLocalDeviceInfo get local devic
   e info failed!
   12-21 09:38:28.904  1841  1841 E C015c0/dsoftbus: [LNN]Server GetLocalNodeDeviceInfo failed, ret =
   -268369889
5. 我想要达到的结果
   
   请问如何解决这个问题，如果是权限问题，那该怎么添加权限呢



### 【运行环境】

硬件：rk3568
ROM版本：
DevEvoStudio版本：
SDK版本：3.2.11.9

[/md]

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作者: 深开鸿_王石    时间: 2023-12-21 14:22
这个就是softbus service要求调用他的进程需要具备权限，而这个应用没有（估计是年久失修了）
那么现在就是两种改法：
1，你自己研究用，那就知道check权限的那行，屏蔽掉，重编镜像，试试这个功能；
2，为softbusdumpinfo这个程序添加权限，参考了benchmarktest，如下：
void AddPermission()
{
    if (g_flag) {
        uint64_t tokenId;
        const char *perms[2];
        perms[0] = OHOS_PERMISSION_DISTRIBUTED_DATASYNC;
        perms[1] = OHOS_PERMISSION_DISTRIBUTED_SOFTBUS_CENTER;
        NativeTokenInfoParams infoInstance = {
            .dcapsNum = 0,
            .permsNum = 2,
            .aclsNum = 0,
            .dcaps = NULL,
            .perms = perms,
            .acls = NULL,
            .processName = "Softbus_Kits",
            .aplStr = "normal",
        };
        tokenId = GetAccessTokenId(&infoInstance);
        SetSelfTokenID(tokenId);
        OHOS::Security::AccessToken::AccessTokenKit::ReloadNativeTokenInfo();
        g_flag = false;
    }
}

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作者: shixiaocheng    时间: 2023-12-22 10:05
回复 深开鸿_王石: 万分感谢，我试试看

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作者: shixiaocheng    时间: 2023-12-22 16:49
回复 深开鸿_王石: 依旧不行，这是我修改后的代码

/*
* Copyright (c) 2022 Huawei Device Co., Ltd.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
*     http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/

#include<stdio.h>

#include "softbus_adapter_mem.h"
#include "softbus_bus_center.h"
#include "softbus_common.h"
#include "token_setproc.h"

#include "nativetoken_kit.h"


static char const *g_pkgName = "com.huawei.dmsdp";
static bool flag = true;

static void AddPermission()
{
    if (flag) {
        uint64_t tokenId;
        const char *perms[2];
        perms[0] = OHOS_PERMISSION_DISTRIBUTED_DATASYNC;
        perms[1] = OHOS_PERMISSION_DISTRIBUTED_SOFTBUS_CENTER;
        NativeTokenInfoParams infoInstance = {
            .dcapsNum = 0,
            .permsNum = 2,
            .aclsNum = 0,
            .dcaps = NULL,
            .perms = perms,
            .acls = NULL,
            .processName = "com.huawei.dmsdp.sxc",
            .aplStr = "system_core",
        };
        tokenId = GetAccessTokenId(&infoInstance);
        printf("[47]GetAccessTokenId : %llu\n",tokenId);
        SetSelfTokenID(tokenId);
        flag = false;
    }
}
static void PrintNodeProperty(const NodeBasicInfo *nodeInfo)
{
    printf("DeviceName = %s\n", nodeInfo->deviceName);
    printf("NetworkId = %s\n", nodeInfo->networkId);
    NodeDeviceInfoKey key;
    key = NODE_KEY_UDID;
    unsigned char udid[UDID_BUF_LEN] = {0};
    if (GetNodeKeyInfo(g_pkgName, nodeInfo->networkId, key,
        udid, UDID_BUF_LEN) != 0) {
        printf("GetNodeKeyInfo Fail!\n");
    } else {
        printf("Udid = %s\n", udid);
    }
    key = NODE_KEY_UUID;
    unsigned char uuid[UUID_BUF_LEN] = {0};
    if (GetNodeKeyInfo(g_pkgName, nodeInfo->networkId, key,
        uuid, UUID_BUF_LEN) != 0) {
        printf("GetNodeKeyInfo Fail!\n");
    } else {
        printf("Uuid = %s\n", uuid);
    }
    key = NODE_KEY_BR_MAC;
    unsigned char brMac[BT_MAC_LEN] = {0};
    if (GetNodeKeyInfo(g_pkgName, nodeInfo->networkId, key,
        brMac, BT_MAC_LEN) != 0) {
        printf("GetNodeKeyInfo Fail!\n");
    } else {
        printf("BrMac = %s\n", brMac);
    }
    key = NODE_KEY_IP_ADDRESS;
    unsigned char ipAddr[IP_STR_MAX_LEN] = {0};
    if (GetNodeKeyInfo(g_pkgName, nodeInfo->networkId, key,
        ipAddr, IP_STR_MAX_LEN) != 0) {
        printf("GetNodeKeyInfo Fail!\n");
    } else {
        printf("ipAddr = %s\n", ipAddr);
    }
    key = NODE_KEY_DEV_NAME;
    unsigned char deviceName[DEVICE_NAME_BUF_LEN] = {0};
    if (GetNodeKeyInfo(g_pkgName, nodeInfo->networkId, key,
        deviceName, DEVICE_NAME_BUF_LEN) != 0) {
        printf("GetNodeKeyInfo Fail!\n");
    } else {
        printf("deviceName = %s\n", deviceName);
    }
}

static void PrintNodePropertyNum(const NodeBasicInfo *nodeInfo)
{
    NodeDeviceInfoKey key;
    key = NODE_KEY_NETWORK_CAPABILITY;
    int32_t netCapacity = 0;
    if (GetNodeKeyInfo(g_pkgName, nodeInfo->networkId, key,
    (uint8_t *)&netCapacity, LNN_COMMON_LEN) != 0) {
        printf("GetNodeKeyInfo Fail!\n");
    } else {
        printf("netCapacity = %d\n", netCapacity);
    }
    key = NODE_KEY_NETWORK_TYPE;
    int32_t netType = 0;
    if (GetNodeKeyInfo(g_pkgName, nodeInfo->networkId, key,
    (uint8_t *)&netType, LNN_COMMON_LEN) != 0) {
        printf("GetNodeKeyInfo Fail!\n");
    } else {
        printf("netType = %d\n", netType);
    }
}

int main(void)
{
    AddPermission();
    NodeBasicInfo localNodeinfo;
    NodeBasicInfo *remoteNodeInfo = NULL;
    int32_t infoNum = 0;
    printf("------Local Device Info------\n");
    if (GetLocalNodeDeviceInfo(g_pkgName, &localNodeinfo) != 0) {
        printf("LnnGetLocalNodeInfo Fail!\n");
        return -1;
    }
    PrintNodeProperty(&localNodeinfo);
    PrintNodePropertyNum(&localNodeinfo);
    printf("------Remote Device Info------\n");
    if (GetAllNodeDeviceInfo(g_pkgName, &remoteNodeInfo, &infoNum) != 0) {
        printf("GetAllNodeDeviceInfo Fail!\n");
        return -1;
    }
    printf("Device Num = %d\n", infoNum);
    for (int i = 0; i < infoNum; i++) {
        printf("\n[No.%d]\n", i + 1);
        PrintNodeProperty(remoteNodeInfo + i);
        PrintNodePropertyNum(remoteNodeInfo + i);
    }
    FreeNodeInfo(remoteNodeInfo);
    printf("SoftBusDumpDeviceInfo complete!\n");
    return 0;
}

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作者: 深开鸿_王石    时间: 2023-12-26 14:19
回复 shixiaocheng: native进程
在native进程拉起前，需要调用GetAccessTokenId函数，获取该native进程的TokenID；再调用SetSelfTokenID将进程TokenID设置到内核中。
在native进程运行过程中，可以通过调用GetNativeTokenInfo、CheckNativeDCap来查验对应进程所具备的token信息，包括分布式能力、APL等级等信息。

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