始建属于其他Session的长河

 
创造其余Session(User)的历程须要得到相应Session的Token作为CreateProcessAsUser的参数来运转进程。 

Sessions:A session is a collection of one or more process groups.

 
修改有System权限的Token的TokenId为其他Session的TokenId就足以在此外Session里面成立有System权限的长河了。

Sessions:是单个或七个进度组的一个集结。

  相关的Blog: https://blog.csdn.net/highyyy/article/details/6129769

process establishes a new session by calling the setsid function.
进度靠调用setsid()成立一个对话。
#include <unistd.h>
pid_t setsid(void);

If the calling process is not a process group leader, this function
creates a new session. Three things happen
假使调用进度不是老董进程,函数setsid()会创立一个新的对话。起到多个效益:
  1.The process becomes the session leader of this new session. (A
session leader is the process that creates a session.) 
     调用经过成为新会话的the session
leader。A session leader 是开创会话的进度。
     The process is the only process in this new session.
     在新的对话中,调用进程是绝无仅有的长河。
  2.The process becomes the process group leader of a new process group.
The new process group ID is the process ID of the calling process.
     调用经过成为新进程组的首席营业官进程。新进度组ID就是调用进度的历程ID。
  3.The process has no controlling terminal. (We’ll discuss controlling
terminals in the next section.)   
     调用经过没有控制终端。
     If the process had a controlling terminal before calling setsid,
that association is broken.
     在调用setsid()此前,假如调用进度有决定终端,
那么调用进度会退出那么些决定终端。

 

This function returns an error if the caller is already a process group
leader. 

假使调用进度早已是一个总裁进程,则函数再次来到出错。
To ensure this is not the case, the usual practice is to call fork and
have the parent terminate and the child continue.
为了幸免那种场地发生,平日的做法是调用fork()使父进度终止,子进度继续运营。
We are guaranteed that the child is not a process group leader, because
the process group ID of the parent is inherited by the child,
笔者们保险了子进程不是老总进度,因为父进度的进程组ID没有被子进程继续,
but the child gets a new process ID. Hence, it is impossible for the
child’s process ID to equal its inherited process group ID.
而子进度取得一个新历程ID。由此,子进度ID等于它继续的进程组ID是不容许的。

发表评论

电子邮件地址不会被公开。 必填项已用*标注

网站地图xml地图