trojan binder

General statement:Binder is an IPC mechanism provided by Android system, the Android system can basically be regarded as binder-based C/s architecture, Binder is also a C/s form, it belongs to drive but drive a piece of memory rather than equipment, framework such as :1. Service-side interfaceA biinder server is actually a binder class object that, once created,

A lot of people say that the binder is a proxy model, more than the same, can understand the essence of less. This article analyzes Java Layer Binder design objectives from a design perspective, as well as design ideas, design flaws, and thus harness it.For "Bond son" understanding, from the communication point of view, is a way of communication, and socket is no different. Client transact, server-side ontr

The binder system can run in the android native environment, but cannot run in the Java Virtual Machine. Therefore, to use binder communication in the Java environment, you need to call some JNI native functions (/android_runtime/android_util_binder.cpp) Get iservicemanager The servicemanager. Java file manages all services at the Java layer. To call any function in servicemanager. Java, you must first obt

will always be aware of a problem, when we put all these operations into the service for implementation, what should we do with the update of the control in the activity? For example, because there will always be a progress bar during playback, And the download of files should always update the downloads, I don't know how you can solve this problem. I checked it online and found that all the methods are broadcast, that isRegister a broadcast in the activity, and then transmit data between the s

Android-binder (a) Learn fromExplore the art of Android developmentHttps://www.jianshu.com/p/bdef9e3178c972765136Discussion on binderBinder is an implementation class for the IBinder interface, and Inder is a bridge between the various managers and their service providers that connect the system, and binders are used primarily in service.Layering of Android SystemsAfter we understand the layering of Android, we have a clearer understanding of the IPC,

Encounter Trojan-PSW.Win32.QQPass, Trojan. psw. win32.gameol, etc. 2 Original endurerVersion 1st (Continued: encounter Trojan-PSW.Win32.QQPass, Trojan. psw. win32.gameol, etc. 1) Download fileinfo and bat_do to the http://purpleendurer.ys168.com, use fileinfo to extract the information of the Red-marked file in the log

The binder mechanism is the inter-process access mechanism throughout the Android system and is often used to access the service. Let's take a look at how the binder is used to access the service in combination with the code. You can understand the service as a non-interface activity. It is a program running in the background. The so-called background is relative to the program that can be viewed, and the

The communication mechanism of the Binder is simple, but some problems have been encountered in the use process. Finally, we have solved the problem. Here we will summarize the problems and share them with you:1. To use Binder for communication, first define the interface, and then implement the BnInterface *** on the server and the client BpInterface ***. In the end, one is to unpackage the parameters, and

Application scenarios that inherit the binder class to bind a service: the service is for your own use only (not third-partyProgramDevelopment ). Note: This method is only applicable when the client and service are in the same program and process. Implementation Method: 1. Create a binder instance in service: This instance contains public methods that can be called by the client; This instance returns

1. Binder (IPC) Linux processes must communicate with each other to share resources and information. Therefore, the operating system kernel must provideInter-process communicationMechanism (IPC, inter-process communication ). IPC Mechanism types: Named Pipe (name pipe), Message Queue (Message Queue), signal (signal), and Memory Sharing (share memory ); The communication between applications on Android terminals is almost invisible to these IPC communi

Service Manager is the manager of all services. Therefore, all servers (system servers) must register with it, and applications query corresponding services from service manager. Its implementation is located in the "frameworks/base/cmds/servicemanager \ service_manager.c" file. int main(int argc, char **argv){ struct binder_state *bs; void *svcmgr = BINDER_SERVICE_MANAGER; bs = binder_open(128*1024); if (binder_become_context_manager(bs)) { LOGE("cannot become context manage

What is an anonymous service? Any service that does not have a register on the ServiceManager is anonymous service.Or take a sample example to see the code:status_t mediaplayer::setdatasource (int fd, int64_t offset, int64_t length) { status_t err = unknown_error; Const spIn the Bpmediaplayerservice. The implementation of Create is for example the following:Virtual spJump directly to the server Mediaplayerservice to see the real implementation of Create:SpFrom the code, we can see that ser

1. Handler message mechanism sequence article 0 Android Messaging Mechanism-handler (framework article) 1 Android message mechanism-handler (native article) 2 Android messaging mechanism-handler (actual combat) 2. Binder IPC mechanism sequence article 0 Binder

Android is based on the Linux kernel, but it does not have rich UNIX-based inter-process communication, but is implemented based on openbinder. The Binder Mechanism is driven by client, server, Service Manager, and binder.ProgramIt consists of four components: client, server, and service manager running in the user space, and the binder driver running in the kernel space. The Service Manager and

The knowledge point of the article basically comes from this connection, and then incorporates some of its own understanding: http://gityuan.com/2015/10/31/binder-prepare/1. Background knowledgeAndroid four-tier structure, the bottom is the Linux Kenel layer, that is, Android is actually based on Linux implementation, the basic implementation code is C language, and C is a structure-oriented language, rather than object-oriented languageSo, there are

This paper studies the implementation of binder service and wants to write a binder example.On the Internet and books have seen similar examples, according to write, found that they are not what they want, not quite in line with the style of the source code.Streamlined one from the binder service of the source code.Problems encountered:1, frameworks/native/includ

Model Binder is very simple in ASP. Simply put, the action method in your controller requires parameter data, which is included in the HTTP request, including the value on the form and the parameters in the URL. The function of Modelbinder is to replace the parameters in the values and URLs on these forms with objects, and then bind them to the action's arguments. I have simply drawn a diagram that will look more intuitive.in ASP. NET MVC you can writ

Tags: program memory footprint TAR requires BSP a basic local methodBinder connection pooling processing of multiple aidl files Pre-stated: I am also a beginner, so this article is from a beginner's point of view, if there are inappropriate places please leave a message to teach me, thank you. If the use of aidl and the binder mechanism do not understand, you can refer to my previous article, theAndroid Foundation-the beginner must know aidl on the

1. What is a Trojan horse? What harm does it have to Internet users? A: Trojan is refers to through the intrusion computer, can be opportunistic steal account password malicious program, it is a specific type of computer virus. Trojans usually run automatically, in the user login game account or other (such as net silver, chat) account of the process of recording the user entered the account number and pa

status_t Audiosystem::setstreamvolumeindex (audio_stream_type_t stream, int index, audio_devices_t device) {Const spif (APs = = 0) return permission_denied;Return Aps->setstreamvolumeindex (stream, index, device); (1)}Virtual status_t Setstreamvolumeindex (audio_stream_type_t stream, int index, audio_devices_t device) {Parcel data, reply;Data.writeinterfacetoken (Iaudiopolicyservice::getinterfacedescriptor ());Data.writeint32 (static_cast Data.writeint32 (index);Data.writeint32 (static_cast Remo