Move procfs_fullpath() to vfs_cache.c, with a rename to textvp_fullpath().
There's no excuse to have code in synthetic filestores that allows direct
references to the textvp anymore.

Feature request

Move procfs_fullpath() to vfs_cache.c, with a rename to textvp_fullpath().
There's no excuse to have code in synthetic filestores that allows direct
references to the textvp anymore.

Feature requested by: msmith
Feature agreed to by: warner
Move requested by: phk
Move agreed to by: bde

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Welcome back our old friend from procfs, "file"!

Change #ifdef KERNEL to #ifdef _KERNEL in the public headers. "KERNEL"
is an application space macro and the applications are supposed to be free
to use it as they please (but cannot). This is cons

Change #ifdef KERNEL to #ifdef _KERNEL in the public headers. "KERNEL"
is an application space macro and the applications are supposed to be free
to use it as they please (but cannot). This is consistant with the other
BSD's who made this change quite some time ago. More commits to come.

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Introduce the new function
p_trespass(struct proc *p1, struct proc *p2)
which returns zero or an errno depending on the legality of p1 trespassing
on p2.

Replace kern_sig.c:CANSIGNAL() with

Introduce the new function
p_trespass(struct proc *p1, struct proc *p2)
which returns zero or an errno depending on the legality of p1 trespassing
on p2.

Replace kern_sig.c:CANSIGNAL() with call to p_trespass() and one
extra signal related check.

Replace procfs.h:CHECKIO() macros with calls to p_trespass().

Only show command lines to process which can trespass on the target
process.

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s/p_cred->pc_ucred/p_ucred/g

A process should be able to examine itself.

$Id$ -> $FreeBSD$

Implement support for hardware debug registers on the i386.

Submitted by: Brian Dean <brdean@unx.sas.com>

Eliminate the bogus procfs private almost struct dirent structure.

Spotted by: Lars Hamren
Reviewed by: bde

Add even more () to CHECKIO which by now feels positively LISPish.

Submitted by: bde
Reviewed by: phk

Add a new "file" to procfs: "rlimit" which shows the resource limits for
the process.

PR: 11342
Submitted by: Adrian Chadd adrian@freebsd.org
Reviewed by: phk

This Implements the mumbled about "Jail" feature.

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 restr

This Implements the mumbled about "Jail" feature.

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/

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Suser() simplification:

1:
s/suser/suser_xxx/

2:
Add new function: suser(struct proc *), prototyped in <sys/proc.h>.

3:
s/suser_xxx(\([a-zA-Z0-9_]*\)->p_ucred, \&\1->p_acflag)/suser(\1)/

Th

Suser() simplification:

1:
s/suser/suser_xxx/

2:
Add new function: suser(struct proc *), prototyped in <sys/proc.h>.

3:
s/suser_xxx(\([a-zA-Z0-9_]*\)->p_ucred, \&\1->p_acflag)/suser(\1)/

The remaining suser_xxx() calls will be scrutinized and dealt with
later.

There may be some unneeded #include <sys/cred.h>, but they are left
as an exercise for Bruce.

More changes to the suser() API will come along with the "jail" code.

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A partial implementation of the procfs cmdline pseudo-file. This
is enough to satisfy things like StarOffice. This is a hack, but doing
it properly would be a LOT of work, and would require extensi

A partial implementation of the procfs cmdline pseudo-file. This
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>.

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Quick fix for type mismatches which were fatal if longs aren't 32
bits. We used a private, wrong, version of `struct dirent' to help
break getdirentries(), and we use a silly check that the size of

Quick fix for type mismatches which were fatal if longs aren't 32
bits. We used a private, wrong, version of `struct dirent' to help
break getdirentries(), and we use a silly check that the size of this
struct is a power of 2 to help break mount() if getdirentries() would
not work. This fix just changes the struct to match `struct dirent'
(except for the name length).

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Disallow reading the current kernel stack. Only the user structure and
the current registers should be accessible.
Reviewed by: David Greenman <dg@root.com>

Fixed a missing/misplaced/misstyled prototype.

Some staticized variables were still declared to be extern.

Fix procfs security hole -- check permissions on meaningful I/Os (namely,
reading/writing of mem and regs). Also have to check for the requesting
process being group KMEM -- this is a bit of a hack,

Fix procfs security hole -- check permissions on meaningful I/Os (namely,
reading/writing of mem and regs). Also have to check for the requesting
process being group KMEM -- this is a bit of a hack, but ps et al need it.

Reviewed by: davidg

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Back out part 1 of the MCFH that changed $Id$ to $FreeBSD$. We are not
ready for it yet.

This is the kernel Lite/2 commit. There are some requisite userland
changes, so don't expect to be able to run the kernel as-is (very well)
without the appropriate Lite/2 userland changes.

The syst

This is the kernel Lite/2 commit. There are some requisite userland
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>

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Make the long-awaited change from $Id$ to $FreeBSD$

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

Make the long-awaited change from $Id$ to $FreeBSD$

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.

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Implement locking for pfs nodes, when at the leaf. Concurrent access
to information from a single process causes hangs. Specifically, this
fixes problems (hangs) with concurrent ps commands, when t

Implement locking for pfs nodes, when at the leaf. Concurrent access
to information from a single process causes hangs. Specifically, this
fixes problems (hangs) with concurrent ps commands, when the system is under
heavy memory load.
Reviewed by: davidg

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Clean-up the new VM map procfs code, and also add support for executable
format file "etype". It contains a description of the binary type for
a process.

Add a feature to procfs to allow display of the process address map
with multiple entries as follows:

start address, end address, resident pages in range, private pages
in range, RW/RO, COW or no

Add a feature to procfs to allow display of the process address map
with multiple entries as follows:

start address, end address, resident pages in range, private pages
in range, RW/RO, COW or not, (vnode/device/swap/default).

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