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* Don't call calcru() on a swapped-out process. calcru() access p_stats, whichdt1999-05-221-16/+10
| | | | is in U-area.
* This Implements the mumbled about "Jail" feature.phk1999-04-281-1/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is a seriously beefed up chroot kind of thing. The process is jailed along the same lines as a chroot does it, but with additional tough restrictions imposed on what the superuser can do. For all I know, it is safe to hand over the root bit inside a prison to the customer living in that prison, this is what it was developed for in fact: "real virtual servers". Each prison has an ip number associated with it, which all IP communications will be coerced to use and each prison has its own hostname. Needless to say, you need more RAM this way, but the advantage is that each customer can run their own particular version of apache and not stomp on the toes of their neighbors. It generally does what one would expect, but setting up a jail still takes a little knowledge. A few notes: I have no scripts for setting up a jail, don't ask me for them. The IP number should be an alias on one of the interfaces. mount a /proc in each jail, it will make ps more useable. /proc/<pid>/status tells the hostname of the prison for jailed processes. Quotas are only sensible if you have a mountpoint per prison. There are no privisions for stopping resource-hogging. Some "#ifdef INET" and similar may be missing (send patches!) If somebody wants to take it from here and develop it into more of a "virtual machine" they should be most welcome! Tools, comments, patches & documentation most welcome. Have fun... Sponsored by: http://www.rndassociates.com/ Run for almost a year by: http://www.servetheweb.com/
* A partial implementation of the procfs cmdline pseudo-file. Thispeter1999-01-051-1/+38
| | | | | | | | is enough to satisfy things like StarOffice. This is a hack, but doing it properly would be a LOT of work, and would require extensive grovelling around in the user address space to find the argv[]. Obtained from: Mostly from Andrzej Bialecki <abial@nask.pl>.
* Fixed printf format errors.bde1998-07-111-6/+6
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* Removed unused #includes.bde1997-08-021-4/+1
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* Don't include <sys/ioctl.h> in the kernel. Stage 1: don't includebde1997-03-241-2/+1
| | | | | it when it is not used. In most cases, the reasons for including it went away when the special ioctl headers became self-sufficient.
* Back out part 1 of the MCFH that changed $Id$ to $FreeBSD$. We are notpeter1997-02-221-1/+1
| | | | ready for it yet.
* This is the kernel Lite/2 commit. There are some requisite userlanddyson1997-02-101-2/+3
| | | | | | | | | | | | | | | changes, so don't expect to be able to run the kernel as-is (very well) without the appropriate Lite/2 userland changes. The system boots and can mount UFS filesystems. Untested: ext2fs, msdosfs, NFS Known problems: Incorrect Berkeley ID strings in some files. Mount_std mounts will not work until the getfsent library routine is changed. Reviewed by: various people Submitted by: Jeffery Hsu <hsu@freebsd.org>
* Make the long-awaited change from $Id$ to $FreeBSD$jkh1997-01-141-1/+1
| | | | | | | | This will make a number of things easier in the future, as well as (finally!) avoiding the Id-smashing problem which has plagued developers for so long. Boy, I'm glad we're not using sup anymore. This update would have been insane otherwise.
* add ruid and rgid to file 'status'wosch1996-02-021-4/+12
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* Remove trailing whitespace.rgrimes1995-05-301-2/+2
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* Cosmetics. reduce the noise from gcc -Wall.phk1994-10-101-5/+5
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* Added $Id$dg1994-08-021-2/+1
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* BSD 4.4 Lite Kernel Sourcesrgrimes1994-05-241-0/+145
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