trojan binder

Essentials of Android Binder driver's Working Mechanism Recently, I have read many books, articles, and Android source code for Android Kernel Analysis. I feel that I have a thorough understanding of the working mechanism of Android Binder. However, it takes a lot of time and effort to achieve this. For most people, I am afraid it will not be as easy as I am to spend so much money to understand this. There

First, prefaceIn the previous blog Android IPC mechanism (ii): Aidl's basic usage, the author describes a major way of communication between Android processes. Use Aidl for communication. The basic usage of aidl is also introduced.In fact, the Aidl method uses binders for cross-process communication. Binder is a way of communicating across processes in Android. The underlying implementation principle is more complex. Limited to the author level, can n

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Some time ago have been looking at the knowledge of binder, recently just have time, summed up some knowledge, hope and everyone exchange study.Speaking of Binder I believe that you learn more and more about the development of Android, the binder mechanism as a mechanism of communication between Android, the application of the Android bottom is very much. We all

Binder: Pins, paper clips. In life, we use a paper clip to "do not" with two sheets. In Android, Binder is used for interprocess communication, and two processes are "not" together.Binder is an architecture with 3 modules (server-side interface, Binder driver, customer-service interface), such as:The binder server, in

Either the client or the server, the head must first be calledSP What did Defaultservicemanager () do, and what instance did it return?The function is defined in the frameworks/native/libs/binder/iservicemanager.cpp:33SpKey steps can be broken down into several steps: 1, Processstate::self (), 2, Processstate::getcontextobject (...), 3, interface_cast1 processstate::self ()Frameworks/native/libs/binder/proc

Thinking analysis, is the following process:How did the ServiceManager start?According to our previous blog ideas, we have a servicemanager agent on the systemserver side, Then the Android system should provide inheritance like AMS or indirectly inherit from Java layer Binder and then rewrite the Ontransact method to handle the request. However, ServiceManager does not use a complex binder class structure

First, create a custom model binder:The process of modeling a model object with request data and passing an object to an action parameter is called model binding.Most of the time the action parameter is the primary key or other unique identifier of the object, so we do not have to place a duplicate data access code in all the actions (the "\\Before" section of the code below), but instead use a custom model binder (the "\\After" section of the code be

First, create a custom model binder:The process of modeling a model object with request data and passing an object to an action parameter is called model binding.Most of the time the action parameter is the primary key or other unique identifier of the object, so we do not have to place a duplicate data access code in all the actions (the "\\Before" section of the code below), but instead use a custom model binder (the "\\After" section of the code be

Binder works on the Linux layer, is a driver that does not require hardware, from a threading perspective, the binder code runs in the kernel state, the client program uses binder is done through the system call.Binder is a monolithic architecture that includes server-side interfaces, binder drivers, and client interfa

6 Binder memory ing and receiving cache zone management For the time being, let's take a look at how data arrives at the receiving end from the sending end in the traditional IPC method? Generally, the sender stores the prepared data in the cache and calls the API to enter the kernel through system calls. The kernel service program allocates memory in the kernel space and copies data from the sender's cache to the kernel cache. When the receiver reads

Binder is the core of Android's interprocess communication, if you look at the Android source code, you will find that the source of Android's various core services are through the binder mechanism to communicate with each other. In the client part of binder, the server side is accessed through proxy mode. This is to introduce the Java Layer