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243e5a88d5
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22 Commits

Author SHA1 Message Date
David Greenman
243e5a88d5 Fixed panic that resulted from mmaping files in kernfs and procfs. A 
regular user could panic the machine with a simple "tail /proc/curproc/mem"
command. The problem was twofold: both kernfs and procfs didn't fill in
the mnt_stat statfs struct (which would later lead to an integer divide
fault in the vnode pager), and kernfs bogusly paniced if a bmap was
attempted.

Reviewed by:	John Dyson
 1995-05-25 01:35:24 +00:00
Rodney W. Grimes
b2b795f07c Fix -Wformat warnings from LINT kernel. 1995-05-11 19:26:53 +00:00
David Greenman
d7e03b7a8b For P_SUGID processes, we must also change ownership of the mem file 
to root so that group kmem can still get to it. *SIGH*
 1995-04-15 03:20:31 +00:00
David Greenman
5232af2cf1 Retain group kmem readability for P_SUGID processes. 1995-04-15 02:50:13 +00:00
David Greenman
f62e09f22e Made /proc/n/mem file group kmem and group readable. Needed to fix ps so 
that it doesn't need to be setuid root.
 1995-04-15 02:30:17 +00:00
Garrett Wollman
bbf3a56610 Add four more filesystem flags: 
VFCF_NETWORK (this FS goes over the net)
	VFCF_READONLY (read-write mounts do not make any sense)
	VFCF_SYNTHETIC (data in this FS is not real)
	VFCF_LOOPBACK (this FS aliases something else)

cd9660 is readonly; nullfs, umapfs, and union are loopback; NFS is netowkr;
procfs, kernfs, and fdesc are synthetic.
 1995-03-16 20:23:48 +00:00
Bruce Evans
b5e8ce9f12 Add and move declarations to fix all of the warnings from `gcc -Wimplicit' 
(except in netccitt, netiso and netns) and most of the warnings from
`gcc -Wnested-externs'.  Fix all the bugs found.  There were no serious
ones.
 1995-03-16 18:17:34 +00:00
David Greenman
59a9ecebb5 Make sure process isn't swapped when messing with it. 
Added missing newline to log() call.
 1995-02-20 15:53:33 +00:00
David Greenman
efc68ce10f Fixed bmap run-length brokeness. 
Use bmap run-length extension when doing clustered paging.

Submitted by:	John Dyson
 1995-02-03 06:46:28 +00:00
David Greenman
f81dd52383 Initialize map start hint to vm_map_find()...not doing so will cause it 
to fail if the random thing on the stack happens to be too large.

Submitted by:	David Jones <dej@qpoint.torfree.net>
 1995-01-05 03:59:38 +00:00
Andrey A. Chernov
16e544e7a1 Fix problem when attached process detached 
Submitted by: Gary Jennejohn
 1994-12-31 12:26:50 +00:00
David Greenman
1b4bb67169 Fixed bug I just introduced that would have allowed a user to clobber 
his kernel stack.
 1994-10-18 04:40:41 +00:00
David Greenman
2d8f106204 Allow upages to be paged in/accessed. 
Submitted by:	John Dyson
 1994-10-18 04:26:53 +00:00
Poul-Henning Kamp
3a773ad0b5 Cosmetics. reduce the noise from gcc -Wall. 1994-10-10 07:55:48 +00:00
David Greenman
824789192c Use tsleep() rather than sleep so that 'ps' is more informative about 
the wait.
 1994-10-06 21:07:04 +00:00
David Greenman
0f85a55965 1) Added "." and ".." entries. 
2) Fixed directory size to return something reasonable.
3) Disabled "file" until the code is completed.
4) Corrected directory link counts.
 1994-09-24 17:01:05 +00:00
Garrett Wollman
c901836c14 Implemented loadable VFS modules, and made most existing filesystems 
loadable.  (NFS is a notable exception.)
 1994-09-21 03:47:43 +00:00
Bruce Evans
0ad076d56a Supply prototypes for some functions that were implicitly declared and 
fix the resulting warnings.
 1994-09-15 19:47:47 +00:00
Garrett Wollman
f23b4c91c4 Fix up some sloppy coding practices: 
- Delete redundant declarations.
- Add -Wredundant-declarations to Makefile.i386 so they don't come back.
- Delete sloppy COMMON-style declarations of uninitialized data in
  header files.
- Add a few prototypes.
- Clean up warnings resulting from the above.

NB: ioconf.c will still generate a redundant-declaration warning, which
is unavoidable unless somebody volunteers to make `config' smarter.
 1994-08-18 22:36:09 +00:00
David Greenman
3c4dd3568f Added $Id$ 1994-08-02 07:55:43 +00:00
Rodney W. Grimes
26f9a76710 The big 4.4BSD Lite to FreeBSD 2.0.0 (Development) patch. 
Reviewed by:	Rodney W. Grimes
Submitted by:	John Dyson and David Greenman
 1994-05-25 09:21:21 +00:00
Rodney W. Grimes
df8bae1de4 BSD 4.4 Lite Kernel Sources 1994-05-24 10:09:53 +00:00