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  • adb root 权限运行
    2021-05-20 19:25:35

    adb root
    结果:
    C:\signapp>adb root
    restarting adbd as root # 说明有root权限 ,若是adbd cannot run as root in production builds 则说明没有root权限

    更多相关内容
  • adb root允许您“ adb push / pull”到系统目录并运行诸如“ adb remount”或“ adb disable-verify”之类的命令。 这是一个高度不安全的magisk模块。 完成所有需要的操作后,不要忘记禁用它。 不要经常使用它。 ...
  • 相比较 Android8.1、9.0 而言,Q 版本 的 root变得相当麻烦,10.0 中引入了动态分区机制,可看这篇Android10 动态分区介绍,同样的要想完全 adb root,需要 fastboot 解锁,然后关闭 verity 才能 adb remount 成功。...
  • ADB Root 不卡住

    2018-01-25 15:21:09
    有時候你下ADB Root會卡在那,這個tool可以幫你做掉,讓你使用pipe時,比較方便
  • adbroot 权限是在system/core/adb/adb.c 中控制。主要根据ro.secure 以及 ro.debuggable 等system property 来控制。 默认即档ro.secure 为0 时,即开启root 权限,为1时再根据ro.debuggable 等选项来确认是否...
  • 错误如上图所示 一、打开开发者选项 一般是狂点图中位置会出来(settings->system->...四、然后adb root、adbdisable-verity,然后adb reboot重启,然后再adb rootadb remount就可以了 ...

    错误如上图所示

    一、打开开发者选项

    一般是狂点图中位置会出来(settings->system->about tablet)

     二、进入developer options,找到Root access,选择对应配置,我这里

     三、然后在输入adb root、adb remount提示

     四、然后adb root、adb disable-verity,然后adb reboot重启,然后再adb root、adb remount就可以了

     

    展开全文
  • Android系统开启adb root方案

    千次阅读 2021-04-15 17:36:14
    adb root模式默认开启 解决方案 system/core/adb/daemon/main.cpp static bool should_drop_privileges() { #if defined(ALLOW_ADBD_ROOT) char value[PROPERTY_VALUE_MAX]; // The properties that affect `...

    需求描述
    将adb root模式默认开启

    解决方案
    system/core/adb/daemon/main.cpp

    static bool should_drop_privileges() {
    #if defined(ALLOW_ADBD_ROOT)
        char value[PROPERTY_VALUE_MAX];

        // The properties that affect `adb root` and `adb unroot` are ro.secure and
        // ro.debuggable. In this context the names don't make the expected behavior
        // particularly obvious.
        //
        // ro.debuggable:
        //   Allowed to become root, but not necessarily the default. Set to 1 on
        //   eng and userdebug builds.
        //
        // ro.secure:
        //   Drop privileges by default. Set to 1 on userdebug and user builds.
        property_get("ro.secure", value, "1");
        bool ro_secure = (strcmp(value, "1") == 0);

        property_get("ro.debuggable", value, "");
        bool ro_debuggable = (strcmp(value, "1") == 0);

        // Drop privileges if ro.secure is set...
        bool drop = ro_secure;

        property_get("service.adb.root", value, "");
        bool adb_root = (strcmp(value, "1") == 0);
        bool adb_unroot = (strcmp(value, "0") == 0);

        // ... except "adb root" lets you keep privileges in a debuggable build.
        if (ro_debuggable && adb_root) {
            drop = false;
        }

        // ... and "adb unroot" lets you explicitly drop privileges.
        if (adb_unroot) {
            drop = true;
        }

        return drop;
    #else
        return true; // "adb root" not allowed, always drop privileges.
    #endif // ALLOW_ADBD_ROOT
    }

    修改system/core/adb/daemon/main.cpp的should_drop_privileges()方法返回为false
    修改build/core/main.mk,使ADDITIONAL_DEFAULT_PROPERTIES += ro.secure=0
    添加属性device/qcom/msm8953_64/system.prop,该属性会编译到root/default.prop
    ro.secure=0
    ro.adb.secure=0
    ro.duebuggbale=1
    ————————————————
    版权声明:本文为CSDN博主「Just_Paranoid」的原创文章,遵循CC 4.0 BY-SA版权协议,转载请附上原文出处链接及本声明。
    原文链接:https://blog.csdn.net/weixin_44008788/article/details/113091256

    展开全文
  • 公司某行招标软件版本是userdebug,需要关闭adb root功能,保留安装应用等功能 刚开始修改系统属性值ro.secure=1,没有效果,只得去撸源码,最后修改成功,特此记录源码分析过程 “解决方案” 这个需求,不是很简单...

    引言

    公司某行招标软件版本是userdebug,需要关闭adb root功能,保留安装应用等功能
    刚开始修改系统属性值ro.secure=1,没有效果,只得去撸源码,最后修改成功,特此记录源码分析过程

    “解决方案”

    这个需求,不是很简单嘛,就是一个系统属性值的问题

    diff --git a/build/make/core/main.mk b/build/make/core/main.mk
    index fedddff3df..c2e0a82f04 100755
    --- a/build/make/core/main.mk
    +++ b/build/make/core/main.mk
    @@ -294,7 +294,7 @@ else # !user_variant
       # Turn on checkjni for non-user builds.
       ADDITIONAL_BUILD_PROPERTIES += ro.kernel.android.checkjni=1
       # Set device insecure for non-user builds.
    -  ADDITIONAL_DEFAULT_PROPERTIES += ro.secure=0
    +  ADDITIONAL_DEFAULT_PROPERTIES += ro.secure=1
       # Allow mock locations by default for non user builds
       ADDITIONAL_DEFAULT_PROPERTIES += ro.allow.mock.location=1
     endif # !user_variant
    

    编译,烧机,adb connect,adb root,adb remount

    C:\Users\lc\Desktop
    $ adb remount
    remount succeeded
    

    纳尼!!居然root成功了

    分析源码过程

    没办法,撸adb源码吧,源码见真章
    /system/core/adb/daemon/main.cpp

    int main(int argc, char** argv) {
    240    while (true) {
    241        static struct option opts[] = {
    242            {"root_seclabel", required_argument, nullptr, 's'},
    243            {"device_banner", required_argument, nullptr, 'b'},
    244            {"version", no_argument, nullptr, 'v'},
    245        };
    246
    247        int option_index = 0;
    		   //解析命令行参数
    248        int c = getopt_long(argc, argv, "", opts, &option_index);
    249        if (c == -1) {
    250            break;
    251        }
    253        switch (c) {
    254        case 's':
    			   //安全标签,adbd的权限说明
    255            root_seclabel = optarg;
    256            break;
    257        case 'b':
    			   //设备类型:android设备,主机
    258            adb_device_banner = optarg;
    259            break;
    260        case 'v':
    261            printf("Android Debug Bridge Daemon version %d.%d.%d\n", ADB_VERSION_MAJOR,
    262                   ADB_VERSION_MINOR, ADB_SERVER_VERSION);
    263            return 0;
    264        default:
    265            // getopt already prints "adbd: invalid option -- %c" for us.
    266            return 1;
    267        }
    268    }
    269    //关闭标准输入
           //指向标准输出文件描述结构体的STDIN_FILENO指向标准输出文件"/dev/null"
    270    close_stdin();
    271    //程序异常退出诊断
    272    debuggerd_init(nullptr);
           //获取系统属性persist.adb.trace_mask,调用setup_trace_mask()设置为trace掩码
    273    adb_trace_init(argv);
    274
    275    D("Handling main()");
           //adbd默认通信端口:5037
    276    return adbd_main(DEFAULT_ADB_PORT);
    277}
    

    着重看下adbd_main()方法

    int adbd_main(int server_port) {
           //设置新建文件的默认值
           //这个与chmod相反,这里相当于新建文件后的权限为666
    176    umask(0);
    177    //SIG_IGN,表示忽略SIGPIPE信号
    178    signal(SIGPIPE, SIG_IGN);
    179    //初始化adbd的传输连接
    180    init_transport_registration();
    182    //保证文件操作安全
    184    adbd_cloexec_auth_socket();
    185
    186    if (ALLOW_ADBD_NO_AUTH && !android::base::GetBoolProperty("ro.adb.secure", false)) {
    187        auth_required = false;
    188    }
    189    //adbd授权初始化
    190    adbd_auth_init();
    191
    192    // Our external storage path may be different than apps, since
    193    // we aren't able to bind mount after dropping root.
    194    const char* adb_external_storage = getenv("ADB_EXTERNAL_STORAGE");
    195    if (adb_external_storage != nullptr) {
    196        setenv("EXTERNAL_STORAGE", adb_external_storage, 1);
    197    } else {
    198        D("Warning: ADB_EXTERNAL_STORAGE is not set.  Leaving EXTERNAL_STORAGE"
    199          " unchanged.\n");
    200    }
    201    //降低特权
    202    drop_privileges(server_port);
    203
    204    bool is_usb = false;
    205    if (access(USB_FFS_ADB_EP0, F_OK) == 0) {
    206        // Listen on USB.
    207        usb_init();
    208        is_usb = true;
    209    }
    210
    211    // If one of these properties is set, also listen on that port.
    212    // If one of the properties isn't set and we couldn't listen on usb, listen
    213    // on the default port.
    214    std::string prop_port = android::base::GetProperty("service.adb.tcp.port", "");
    215    if (prop_port.empty()) {
    216        prop_port = android::base::GetProperty("persist.adb.tcp.port", "");
    217    }
    218
    219    int port;
    220    if (sscanf(prop_port.c_str(), "%d", &port) == 1 && port > 0) {
    221        D("using port=%d", port);
    222        // Listen on TCP port specified by service.adb.tcp.port property.
    223        setup_port(port);
    224    } else if (!is_usb) {
    225        // Listen on default port.
    226        setup_port(DEFAULT_ADB_LOCAL_TRANSPORT_PORT);
    227    }
    228
    229    D("adbd_main(): pre init_jdwp()");
    230    init_jdwp();
    231    D("adbd_main(): post init_jdwp()");
    232
    233    D("Event loop starting");
    234    fdevent_loop();
    235
    236    return 0;
    237}
    

    ro.adb.secure

    主要来看下这段代码,分析一下ro.adb.secure属性值的作用

    186    if (ALLOW_ADBD_NO_AUTH && !android::base::GetBoolProperty("ro.adb.secure", false)) {
    187        auth_required = false;
    188    }
    

    用grep命令查一下ALLOW_ADBD_NO_AUTH 在哪里初始化

    ****@****:~/work/mt8788_9$ grep -inr "ALLOW_ADBD_NO_AUTH" system/core/adb/
    system/core/adb/Android.mk:347:LOCAL_CFLAGS += -DALLOW_ADBD_NO_AUTH=$(if $(filter userdebug eng,$(TARGET_BUILD_VARIANT)),1,0)
    

    获取当前编译环境中的编译版本属性TARGET_BUILD_VARIANT,
    如果是userdebug或eng的话,ALLOW_ADBD_NO_AUTH为1,否者为0。

    继续查一下auth_required初始化之后在哪里用到
    /system/core/adb/adb.cpp

    static void handle_new_connection(atransport* t, apacket* p) {
    320    if (t->GetConnectionState() != kCsOffline) {
    321        t->SetConnectionState(kCsOffline);
    322        handle_offline(t);
    323    }
    324
    325    t->update_version(p->msg.arg0, p->msg.arg1);
    326    parse_banner(p->payload, t);
    327
    328#if ADB_HOST
    329    handle_online(t);
    330#else
    331    if (!auth_required) {
    332        handle_online(t);
    333        send_connect(t);
    334    } else {
    335        send_auth_request(t);
    336    }
    337#endif
    338
    339    update_transports();
    340}
    

    当auth_required=true时,设置online标志位为1,调用send_connect()去连接,往下走流程
    当auth_required=false时,输出需要认证的消息到终端

    在这里做个测试,设置ro.adb.secure=false,然后执行adb命令

    C:\Users\lc\Desktop
    $ adb root
    adb: unable to connect for root: device unauthorized.
    This adb server's $ADB_VENDOR_KEYS is not set
    Try 'adb kill-server' if that seems wrong.
    Otherwise check for a confirmation dialog on your device.
    
    C:\Users\lc\Desktop
    $ adb devices
    List of devices attached
    10.12.200.186:5555      unauthorized
    

    此时设备处入未认证的状态,adb install失效,不符合我们的需求。

    drop_privileges()

    看drop_privileges函数名,知道它是用来降低权限的,对调用者权限从root到shell的控制

    static void drop_privileges(int server_port) {
    99    ScopedMinijail jail(minijail_new());
    100
    101    // Add extra groups:
    102    // AID_ADB to access the USB driver
    103    // AID_LOG to read system logs (adb logcat)
    104    // AID_INPUT to diagnose input issues (getevent)
    105    // AID_INET to diagnose network issues (ping)
    106    // AID_NET_BT and AID_NET_BT_ADMIN to diagnose bluetooth (hcidump)
    107    // AID_SDCARD_R to allow reading from the SD card
    108    // AID_SDCARD_RW to allow writing to the SD card
    109    // AID_NET_BW_STATS to read out qtaguid statistics
    110    // AID_READPROC for reading /proc entries across UID boundaries
    111    // AID_UHID for using 'hid' command to read/write to /dev/uhid
    112    gid_t groups[] = {AID_ADB,          AID_LOG,          AID_INPUT,    AID_INET,
    113                      AID_NET_BT,       AID_NET_BT_ADMIN, AID_SDCARD_R, AID_SDCARD_RW,
    114                      AID_NET_BW_STATS, AID_READPROC,     AID_UHID};
    115    minijail_set_supplementary_gids(jail.get(), arraysize(groups), groups);
    116
    117    //安全模式下,不监听端口(默认为5037),以非root用户身份运行
    119    if (should_drop_privileges()) {
    120        const bool should_drop_caps = should_drop_capabilities_bounding_set();
    121
    122        if (should_drop_caps) {
    123            minijail_use_caps(jail.get(), CAP_TO_MASK(CAP_SETUID) | CAP_TO_MASK(CAP_SETGID));
    124        }
    125		   //更改群组为AID_SHELL
    126        minijail_change_gid(jail.get(), AID_SHELL);
               //更改用户为AID_SHELL
    127        minijail_change_uid(jail.get(), AID_SHELL);
    128        // minijail_enter() will abort if any priv-dropping step fails.
    129        minijail_enter(jail.get());
    130
    131        //清除clearing the inheritable, effective, and permitted sets.
    135        using ScopedCaps =
    136            std::unique_ptr<std::remove_pointer<cap_t>::type, std::function<void(cap_t)>>;
    137        ScopedCaps caps(cap_get_proc(), &cap_free);
    138        if (cap_clear_flag(caps.get(), CAP_INHERITABLE) == -1) {
    139            PLOG(FATAL) << "cap_clear_flag(INHERITABLE) failed";
    140        }
    141        if (cap_clear_flag(caps.get(), CAP_EFFECTIVE) == -1) {
    142            PLOG(FATAL) << "cap_clear_flag(PEMITTED) failed";
    143        }
    144        if (cap_clear_flag(caps.get(), CAP_PERMITTED) == -1) {
    145            PLOG(FATAL) << "cap_clear_flag(PEMITTED) failed";
    146        }
    147        if (cap_set_proc(caps.get()) != 0) {
    148            PLOG(FATAL) << "cap_set_proc() failed";
    149        }
    150
    151        D("Local port disabled");
    152    } else {
    153        // minijail_enter() will abort if any priv-dropping step fails.
    154        minijail_enter(jail.get());
    155
    156        if (root_seclabel != nullptr) {
    157            if (selinux_android_setcon(root_seclabel) < 0) {
    158                LOG(FATAL) << "Could not set SELinux context";
    159            }
    160        }
    161        std::string error;
    162        std::string local_name =
    163            android::base::StringPrintf("tcp:%d", server_port);
    164        if (install_listener(local_name, "*smartsocket*", nullptr, 0, nullptr, &error)) {
    165            LOG(FATAL) << "Could not install *smartsocket* listener: " << error;
    166        }
    167    }
    168}
    

    通过should_drop_privileges()函数来判断是否需要降低权限

       static bool should_drop_privileges() {
    63#if defined(ALLOW_ADBD_ROOT)
    64    // The properties that affect `adb root` and `adb unroot` are ro.secure and
    65    // ro.debuggable. In this context the names don't make the expected behavior
    66    // particularly obvious.
    67    //
    68    // ro.debuggable:
    69    //   Allowed to become root, but not necessarily the default. Set to 1 on
    70    //   eng and userdebug builds.
    71    //
    72    // ro.secure:
    73    //   Drop privileges by default. Set to 1 on userdebug and user builds.
    74    bool ro_secure = android::base::GetBoolProperty("ro.secure", true);
    75    bool ro_debuggable = __android_log_is_debuggable();
    76
    77    // Drop privileges if ro.secure is set...
    78    bool drop = ro_secure;
    79
    80    // ... except "adb root" lets you keep privileges in a debuggable build.
    81    std::string prop = android::base::GetProperty("service.adb.root", "");
    82    bool adb_root = (prop == "1");
    83    bool adb_unroot = (prop == "0");
    84    if (ro_debuggable && adb_root) {
    85        drop = false;
    86    }
    87    // ... and "adb unroot" lets you explicitly drop privileges.
    88    if (adb_unroot) {
    89        drop = true;
    90    }
    91
    92    return drop;
    93#else
    94    return true; // "adb root" not allowed, always drop privileges.
    95#endif // ALLOW_ADBD_ROOT
    96}
    

    看了这里的逻辑才恍然大悟,难怪只是设置ro.secure的值没用,真的需要判断的条件是__android_log_is_debuggable()和service.adb.root属性值。

    真丶解决方案

    /system/core/liblog/properties.c

    280LIBLOG_ABI_PUBLIC int __android_log_is_debuggable() {
    281  static uint32_t serial;
    282  static struct cache_char tag_cache;
    283  static const char key[] = "ro.debuggable";
    284  int ret;
    285
    286  if (tag_cache.c) { /* ro property does not change after set */
    287    ret = tag_cache.c == '1';
    288  } else if (lock()) {
    289    struct cache_char temp_cache = { { NULL, -1 }, '\0' };
    290    refresh_cache(&temp_cache, key);
    291    ret = temp_cache.c == '1';
    292  } else {
    293    int change_detected = check_cache(&tag_cache.cache);
    294    uint32_t current_serial = __system_property_area_serial();
    295    if (current_serial != serial) {
    296      change_detected = 1;
    297    }
    298    if (change_detected) {
    299      refresh_cache(&tag_cache, key);
    300      serial = current_serial;
    301    }
    302    ret = tag_cache.c == '1';
    303
    304    unlock();
    305  }
    306
    307  return ret;
    308}
    

    然后查一下service.adb.root属性值的初始化

    ****@****:~/work/mt8788_9$ grep -inr "service.adb.root" system/core/adb/
    system/core/adb/daemon/main.cpp:81:    std::string prop = android::base::GetProperty("service.adb.root", "");
    system/core/adb/services.cpp:87:        android::base::SetProperty("service.adb.root", "1");
    system/core/adb/services.cpp:98:        android::base::SetProperty("service.adb.root", "0");
    

    /system/core/adb/services.cpp

    void restart_root_service(int fd, void *cookie) {
        if (getuid() == 0) {
            WriteFdExactly(fd, "adbd is already running as root\n");
            adb_close(fd);
        } else {
            if (!__android_log_is_debuggable()) {
                WriteFdExactly(fd, "adbd cannot run as root in production builds\n");
                adb_close(fd);
                return;
            }
    
            android::base::SetProperty("service.adb.root", "1");
            WriteFdExactly(fd, "restarting adbd as root\n");
            adb_close(fd);
        }
    }
    
    void restart_unroot_service(int fd, void *cookie) {
        if (getuid() != 0) {
            WriteFdExactly(fd, "adbd not running as root\n");
            adb_close(fd);
        } else {
            android::base::SetProperty("service.adb.root", "0");
            WriteFdExactly(fd, "restarting adbd as non root\n");
            adb_close(fd);
        }
    }
    

    可以看到service.adb.root的属性值是动态设置的,判断条件也是__android_log_is_debuggable()方法
    修改ro.debuggable的值

    diff --git a/build/make/core/main.mk b/build/make/core/main.mk
    index c2e0a82f04..14ca69b4a4 100755
    --- a/build/make/core/main.mk
    +++ b/build/make/core/main.mk
    @@ -301,7 +301,7 @@ endif # !user_variant
    
     ifeq (true,$(strip $(enable_target_debugging)))
       # Target is more debuggable and adbd is on by default
    -  ADDITIONAL_DEFAULT_PROPERTIES += ro.debuggable=1
    +  ADDITIONAL_DEFAULT_PROPERTIES += ro.debuggable=0
       # Enable Dalvik lock contention logging.
       ADDITIONAL_BUILD_PROPERTIES += dalvik.vm.lockprof.threshold=500
       # Include the debugging/testing OTA keys in this build.
    

    编译,烧机之后,验证功能

    C:\Users\lc\Desktop
    $ adb disconnect & adb connect 10.12.200.27:5555 & adb root & adb remount
    disconnected everything
    connected to 10.12.200.27:5555
    Not running as root. Try "adb root" first.
    
    C:\Users\lc\Desktop
    $ adb install -r antutu_v8.4.8.apk
    Performing Streamed Install
    adb: failed to install antutu_v8.4.8.apk: Failure [-9999: **** signature error for com.antutu.ABenchMark]
    

    注:-9999是增加的第三方验签功能,这里无关紧要。
    root功能失效,应用安装功能等保留,问题解决。

    总结

    遇事多看看源码,看源码之前,看看大佬的博客,有助于我们阅读源码
    ADB(二)_ADBD_main()函数代码梳理
    ADB(三)_ADBD_adbd_main()函数代码梳理
    ADB(四)_host端的启动流程代码梳理

    展开全文
  • Android系统默认开启adb root模式

    千次阅读 2021-01-24 15:43:49
    adb root模式默认开启 解决方案 system/core/adb/daemon/main.cpp static bool should_drop_privileges() { #if defined(ALLOW_ADBD_ROOT) char value[PROPERTY_VALUE_MAX]; // The properties that affect `...
  • 在连接了adb调试手机后,我是要把重新安装,删除手机上的app 当时执行,重新安装命令 adb remount 如图: 就报了这个Not running as root. Try"adb root" first. ...adb root 然后再执行其他命令 ...
  • 老弟们,还是我,将 root 进行到底!android11.0 root 安排!!! 大体沿用之前 10.0 的修改方法,adb 想要 remount 成功,必须进行 fastboot 解锁,解锁后无需在进行 adb disable-verity 操作,直接 adb remount 就...
  • 解决 'adb root' 时提示 'adbd cannot run as root in production builds'
  • adb root 失败 ps等命令执行无效果

    千次阅读 2020-11-29 00:37:07
    adb shell "su -c '命令1; 命令2'" #分行执行多条命令 adb shell "su -c ' 命令1; 命令2 '" #例子 adb shell "su -c ' cd data; cd data; ls '" 转自https://www.cnblogs.com/jeason1997/p/12410537.html
  • 获取adb root权限

    万次阅读 2018-06-18 12:40:41
    在开发中,难免在debug release版本时碰倒adb shell权限的问题, 比如QA突然急冲冲的拿着一台出问题的机器跑过来,当你要使用adb shell做一些测试时竟然发现没有
  • adb Not running as root. Try "adb root" first.

    万次阅读 2019-08-08 16:32:29
    前几天遇到这个问题,明明已经敲入了adb root,仍旧不能remount。 D:\Android\SDK\platform-tools>adb root D:\Android\SDK\platform-tools>adb remount D:\Android\SDK\platform-tools>adb Not ...
  • 1.Android P 无法直接 adb remount 原因 Android P之后的版本,google 弃用了 avb 2.0,默认打开了 security boot。DM-Verity 启动策略有一些改变:由原先的 vboot 1.0模式变成使用了avb2.0模式。这就导致了在 user...
  • adb root 出现错误

    千次阅读 2018-05-15 14:48:32
    执行adb root发现错误:adb: unable to connect for root: insufficient permissions for device: verify udev rules.See [http://developer.android.com/tools/device.html] for more information.解决方法:sudo ...
  • root打开adb软件.zip

    2020-04-05 21:53:19
    此软件能永久开启adb,内有说明,当然有例外的机顶盒。比如17年的天邑机顶盒ty1208z CPUS905M就不行 18年19年都行就它17年的不行。
  • 一直对 root 这块比较感兴趣,正好最近客户有这么个需求,都说兴趣是最好的老师,但也抵不住任务来的快啊。临危受命,只能开搞了。 从 Android M 后 Google 对权限控制的越来越严,包括 root 也是,网上很多文章都是...
  • 一、adb logcat 命令的时候,cmd总是提示adb server did't AC
  • user版本打开adb root权限

    千次阅读 2019-04-16 10:48:52
    首先修改根目录下的/system/core/adb/Android.mk 将上图中的代码注释,添加如下代码,使其不管在哪种版本下都有...LOCAL_CFLAGS += -DALLOW_ADBD_ROOT=1 修改/system/core/adb/services.cpp 注释掉此段,我们将...
  • 目的:是为了访问 、data/data/ 路径 出现无权限。 机器可能要root .
  • 这是一个ADB工具可以用于手机刷机 获取root之类
  • 今天遇到一个很郁闷的问题 有的手机连接电脑 通过cmd进入命令行窗口执行adb root 可以连接成功 但有一台手机连接usb 在命令行输入adb root 却报错device not found 网上的方法都用了,还是没有解决问题,请大神们说...
  • 修改ro.adb.secure和ro.secure属性 2、关闭selinux system/core/init/Android.mk system/core/init/selinux.cpp 3、修改adb模块的android.mk文件,在user模式下允许adb功能 system/core/adb/Android.mk 4、设置...
  • adb root 权限

    2020-08-04 18:56:17
    ``` adb connect 10.0.0.38 adb shell ``` 执行ls /data时报了没权限 ``` su ls /data ``` 搞定
  • 相比较 Android8.1 而言,9.0 的 root变得更麻烦了,因为 9.0 开始 google 启用 avb(Android Verified Boot)2.0,安全等级又提高了,可看这篇Android P(9.0) userdebug 版本执行adb remount失败,就连直接编译 user...
  • 在之前的几篇adb文章中,我们清楚了adb rootadb key授权的流程。这篇文章我们我们主要分析下android8.0 上如何在user版本上adb root以及不用adb key的授权。 首先我们在adbd_main函数中将auth_required置为false...

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