mknod | 易学教程

tun interface inside docker not able to read packets from host

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问题 I am trying this tutorial for creating and using tun interface. In my case, I want to use it inside a docker container. My host and docker container both are Linux with mknod support. I am trying to get tun interface inside the container to read packets from host but without using --network=host . Based on the docker run doc, I am mapping host /dev/net/tun inside docker using --device . Then adding capabilities NET_ADMIN (also tried adding MKNOD , NET_RAW but does not seem to help). Then

Python module 'os' has no attribute 'mknod'

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问题 I want to create a new file in Python for that I am using mknod command, but getting error as: os.mknod(); AttributeError: module 'os' has no attribute 'mknod' I am using windows and attributes other than 'mknod' are working. 回答1: os offers functionality that is closely related to the OS you're using. If most other attributes can be accessed from os (meaning you haven't got a os.py file in the current dir masking the standard module) an AttributeError will 99% signal an unsupported function

Redirecting stdin through a FIFO

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问题 I'm running a server app (written in Java) under GNU/Linux which takes input (from stdin, I guess) and interprets it to run some commands. I dont want to run the app inside a terminal window (I'd like to run a daemon), but I'd still like to be able to input commands whenever I want to. I thought I might be able to do that using fifos, so I created it using mknod. The problem is cat fifofile > java... and cat fifofile | java ... fail with a "file not found" error for some reason. Using only

Creating directory with mknod()

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问题 I need to create a directory using mknod() (use of mkdir() is not allow in my case), I would call the program from a certain directory and introduce the path where the new dir should be created inside the previous one. Ex: If I'm /home/user/test/ and inside test there is /level1/ , I want to create the directory level2 inside level1 , so I would pass the argument /level1/level2/ I have the following code that works when I create a pipe,but when I change the mode to S_IFDIR , it doesn't do

Python module 'os' has no attribute 'mknod'

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I want to create a new file in Python for that I am using mknod command, but getting error as: os.mknod(); AttributeError: module 'os' has no attribute 'mknod' I am using windows and attributes other than 'mknod' are working. os offers functionality that is closely related to the OS you're using. If most other attributes can be accessed from os (meaning you haven't got a os.py file in the current dir masking the standard module) an AttributeError will 99% signal an unsupported function on your Operating System. This is what the case is with os.mknod on Windows. Creating named pipes in Windows

How to create a device node from the init_module code of a Linux kernel module?

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I am writing a module for the linux kernel and I want to create some device nodes in the init function int init_module(void) { Major = register_chrdev(0, DEVICE_NAME, &fops); // Now I want to create device nodes with the returned major number } I also want the kernel to assign a minor number for my first node, and then I will assign the other nodes' minor numbers by myself. How can I do this in the code. I dont want to create devices from the shell using mknod To have more control over the device numbers and the device creation you could do the following steps (instead of register_chrdev() ):

How to create a device node from the init_module code of a Linux kernel module?

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问题 I am writing a module for the linux kernel and I want to create some device nodes in the init function int init_module(void) { Major = register_chrdev(0, DEVICE_NAME, &fops); // Now I want to create device nodes with the returned major number } I also want the kernel to assign a minor number for my first node, and then I will assign the other nodes\' minor numbers by myself. How can I do this in the code. I dont want to create devices from the shell using mknod 回答1: To have more control over