Re: [9fans] Backgrounding a task

> Think about multiple processes owned by multiple users running on a > cpu server. Which processes should be allowed to join which > namespaces? > > Perhaps allowing only the hostowner to join namespaces for debugging > and administration purposes would be acceptable. Ah, right. What about

Re: [9fans] Backgrounding a task

Here it is: https://github.com/JehanneOS/jehanne/commit/320e6e6f35bfbc2e37dbd079c8d6a9124bd9ac6c The simple test attached confirms that it works as expected: https://github.com/JehanneOS/jehanne/blob/master/qa/kern/nsclone.c Now it's just matter of modifying the plumber to use this facility and

Re: [9fans] Backgrounding a task

2017-10-24 16:21 GMT+02:00 Alex Musolino : > Creating a child process is something that a process explicitly > controls and the RFNOTEG flag of rfork(2) allows a process to control > whether or not it shares its namespace with its children. Allowing > other, unrelated

Re: [9fans] Backgrounding a task

> The namespace join facility looks interesting. Do you have a patch > somewhere for it? I'll see what I can dig up though it wouldn't tbe erribly difficult to reimplement. You basically just need to modify the pgrp pointer of the proc, adjusting ref counts as required. >> Of course, a lot of

Re: [9fans] Backgrounding a task

The namespace join facility looks interesting. Do you have a patch somewhere for it? > Of course, a lot of the isolation that per-process namespaces give you > is suddenly undone by the introduction of this facility. I'm not sure if the lack of isolation is any different than what can be done