Date: Fri, 27 Aug 1999 12:47:42 -0700 (PDT) From: Marcel Moolenaar <marcel@FreeBSD.org> To: cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/sys/i386/conf files.i386 src/sys/i386/linux linux_mib.c linux_mib.h linux_misc.c src/sys/kern kern_exit.c kern_mib.c src/sys/modules/linux Makefile src/sys/sys jail.h sysctl.h Message-ID: <199908271947.MAA42799@freefall.freebsd.org>
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marcel 1999/08/27 12:47:42 PDT
Modified files:
sys/i386/conf files.i386
sys/i386/linux linux_misc.c
sys/kern kern_exit.c kern_mib.c
sys/modules/linux Makefile
sys/sys jail.h sysctl.h
Added files:
sys/i386/linux linux_mib.c linux_mib.h
Log:
Add sysctl variables for the Linuxulator. These reside under `compat.linux' as
discussed on current.
The following variables are defined (for now):
osname (defaults to "Linux")
Allow users to change the name of the OS as returned by uname(2),
specially added for all those Linux Netscape users and statistics
maniacs :-) We now have what we all wanted!
osrelease (defaults to "2.2.5")
Allow users to change the version of the OS as returned by uname(2).
Since -current supports glibc2.1 now, change the default to 2.2.5
(was 2.0.36).
oss_version (defaults to 198144 [0x030600])
This one will be used by the OSS_GETVERSION ioctl (PR 12917) which I
can commit now that we have the MIB. The default version number is the
lowest version possible with the current 'encoding'.
A note about imprisoned processes (see jail(2)):
These variables are copy-on-write (as suggested by phk). This means that
imprisoned processes will use the system wide value unless it is written/set
by the process. From that moment on, a copy local to the prison will be
used.
A note about the implementation:
I choose to add a single pointer to struct prison, because I didn't like the
idea of changing struct prison every time I come up with a new variable. As
a side effect, the extra storage is only needed when a variable is set from
within the prison. This also minimizes kernel bloat when the Linuxulator is
not used; both compiled in or as a module.
Reviewed by: bde (first version only) and phk
Revision Changes Path
1.260 +2 -1 src/sys/i386/conf/files.i386
1.68 +8 -3 src/sys/i386/linux/linux_misc.c
1.82 +5 -2 src/sys/kern/kern_exit.c
1.24 +4 -2 src/sys/kern/kern_mib.c
1.26 +2 -2 src/sys/modules/linux/Makefile
1.3 +2 -1 src/sys/sys/jail.h
1.74 +2 -1 src/sys/sys/sysctl.h
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