Commit Graph

36039 Commits

Author SHA1 Message Date
David Xu
3139ada54c Move suspension checking code from userret() into thread_userret(). 2002-10-26 02:56:51 +00:00
David Xu
56a6a23ea6 Backout revision 1.48. 2002-10-26 01:26:36 +00:00
Sam Leffler
57b6353534 o m_adj rx buffer so IP header is 32-bit aligned
o replace EPIC_MGETCLUSER with m_getcl

MFC after:	1 week
2002-10-25 22:06:03 +00:00
John Baldwin
fbc9740955 Cast si_drv2 to intptr_t instead of int to quiet warnings.
Tested on:	alpha
Reported by:	marcel (on an ia64)
2002-10-25 20:49:24 +00:00
Robert Watson
a67fe518a1 Comment describing the semantics of mac_late.
Trim trailing whitespace.

Obtained from:	TrustedBSD Project
Sponsored by:	DARPA, Network Associates Laboratories
2002-10-25 20:45:27 +00:00
John Baldwin
4c86c028ac Use the newer "+" modifier on output contraints when a register or
memory datum is used for both input and output instead of using
matching constraints.
2002-10-25 20:22:12 +00:00
Poul-Henning Kamp
3d5500fc51 Reduce the GEOM verbosity under bootverbose to something more sufferable.
This is not quite the set of information I would want, but the tree where
I have the "correct" version is messed up with conflicts.

Sponsored by:	DARPA & NAI Labs.
2002-10-25 20:09:45 +00:00
John Baldwin
6de4b3c6cb Don't copy td_md. Instead, let the MD code handle it just like it
handles the MD fields of all the other MD portions of proc-related
structures.

Tested on:	i386, alpha, sparc64
2002-10-25 20:07:52 +00:00
John Baldwin
ab79480392 Note that the sched_lock protects md_ldt of struct mdproc. 2002-10-25 20:06:16 +00:00
Maxime Henrion
4578a2e652 - Rename the DDB specific %z printf format to %y.
- Make DDB use %y instead of %z.
- Teach GCC about %y.
- Implement support for the C99 %z format modifier.

Approved by:	re@
Reviewed by:	peter
Tested on:	i386, sparc64
2002-10-25 19:41:32 +00:00
Peter Wemm
331e4823a2 Finish fixing the 5.x FPU code for dealing with signal handlers.
Obtained from:  bde
2002-10-25 19:12:16 +00:00
Peter Wemm
23eeeff7be Split 4.x and 5.x signal handling so that we can keep 4.x signal
handling clean and functional as 5.x evolves.  This allows some of the
nasty bandaids in the 5.x codepaths to be unwound.

Encapsulate 4.x signal handling under COMPAT_FREEBSD4 (there is an
anti-foot-shooting measure in place, 5.x folks need this for a while) and
finish encapsulating the older stuff under COMPAT_43.  Since the ancient
stuff is required on alpha (longjmp(3) passes a 'struct osigcontext *'
to the current sigreturn(2), instead of the 'ucontext_t *' that sigreturn
is supposed to take), add a compile time check to prevent foot shooting
there too.  Add uniform COMPAT_43 stubs for ia64/sparc64/powerpc.

Tested on: i386, alpha, ia64.  Compiled on sparc64 (a few days ago).
Approved by: re
2002-10-25 19:10:58 +00:00
Mitsuru IWASAKI
fb3a308a4a Change method to determine base memory size.
Try INT 15H/E820H first, then fall back to the old compatibility
method (INT 12H).
This is a workaround for newer machines which have broken INT 12H BIOS
service implementation.

Reviewed by:	-current ML
MFC after:	3 days
2002-10-25 18:46:36 +00:00
Poul-Henning Kamp
df6b615a42 #include <geom/geom.h> to get proper prototypes. Contrary to my fears we
seem to have all the prerequisites already.

Call g_waitidle() as the first thing in vfs_mountroot() so that we have
it out of the way before we even decide if we should call .._ask() or
.._try().

Call the g_dev_print() function to provide better guidance for the
root-mount prompt.
2002-10-25 18:44:42 +00:00
Poul-Henning Kamp
ce225127b9 Add a g_dev_print() function which prints all the /dev entries GEOM
know about.
2002-10-25 18:42:42 +00:00
Thomas Moestl
db44ef5176 Initialize tick_MHz and related variables much earlier. After the last
revision of tick.c, this was done at SI_SUB_CLOCKS, which is too late
because tick_MHz is required for DELAY() to work.

Reviewed by:	jake
2002-10-25 17:42:14 +00:00
Thomas Moestl
736b63df0d Fix iommu_dvmamap_sync() to use the right address when flushing the
streaming cache. This bug could have the potential to cause data
corruption on systems with Psycho U2P bridges (Sabre bridges have no
streaming cache).
However, due to the usual driver architecture, it is believed that
corruption did occur only in rare cases (if at all).
2002-10-25 17:31:31 +00:00
Hidetoshi Shimokawa
6fe6a00661 Don't check IFF_RUNNING in previous change.
The flag is sometimes unset if the interface has IPv6 link-local
address only.
2002-10-25 17:31:03 +00:00
Poul-Henning Kamp
c03bf4f225 Loose the g_dev_clone() noise. 2002-10-25 17:00:15 +00:00
Jake Burkholder
4d961d24e1 Greatly improve readability of trap() by using a table to convert between
trap types and signals to send.  Rearrange KASSERTs to better handle faults
early before curthread is setup, or in the case that it gets corrupted or
set to 0.
2002-10-25 16:00:47 +00:00
David Xu
ddc4f28155 suspend thread only when it can be interrupted. 2002-10-25 13:12:36 +00:00
David Xu
0cf609706f let thread_schedule_upcall() handle idle kse. 2002-10-25 12:50:31 +00:00
Poul-Henning Kamp
fa669ab7b8 Disable the kernacc() check in mtx_validate() until such time that kernacc
does not require Giant.

This means that we may miss panics on a class of mutex programming bugs,
but only if running with a Chernobyl setting of debug-flags.

Spotted by:	Pete Carah <pete@ns.altadena.net>
2002-10-25 08:40:20 +00:00
Poul-Henning Kamp
0d6dc414b4 In vrele() we can actually have a VCHR with v_rdev == NULL if we
came from the bottom of addaliasu().  Don't panic.
2002-10-25 07:58:25 +00:00
Julian Elischer
de4723f6e8 fix style-o 2002-10-25 07:17:07 +00:00
Julian Elischer
9d10277721 More work on the interaction between suspending and sleeping threads.
Also clean up some code used with 'single-threading'.

Reviewed by:	davidxu
2002-10-25 07:11:12 +00:00
Warner Losh
d793791855 Use the correct values for LDBL_*. Libc doesn't completely support
long doubles at the moment (printf truncates them to doubles).
However, long doubles to appear to work to the ranges listed in this
commit on both -stable (4.5) and -current.  There may be some slight
rounding issues with long doubles, but that's an orthogonal issue to
these constants.

I've had this in my local tree for 3 months, and in my company's local
tree for 15 months with no ill effects.

Obtained from: NetBSD
Not likely to like it: bde
2002-10-25 07:02:52 +00:00
Jake Burkholder
81784fad7a Minor cleanups.
- use fields in sysent instead of PS_STRINGS
- set TSTATE_PRIV in frame0.tf_tstate for what its worth
2002-10-25 06:26:34 +00:00
Kirk McKusick
9ab73fd11a Within ufs, the ffs_sync and ffs_fsync functions did not always
check for and/or report I/O errors. The result is that a VFS_SYNC
or VOP_FSYNC called with MNT_WAIT could loop infinitely on ufs in
the presence of a hard error writing a disk sector or in a filesystem
full condition. This patch ensures that I/O errors will always be
checked and returned.  This patch also ensures that every call to
VFS_SYNC or VOP_FSYNC with MNT_WAIT set checks for and takes
appropriate action when an error is returned.

Sponsored by:   DARPA & NAI Labs.
2002-10-25 00:20:37 +00:00
David Xu
4c40dcd4d7 fix typo. 2002-10-25 00:13:46 +00:00
Julian Elischer
1434d3fe6f Extract out KSE specific code from machine specific code
so that there is ony one copy of it. Fix that one copy
so that KSEs with no mailbox in a KSE program are not a cause
of page faults (this can legitmatly happen).

Submitted by:	(parts) davidxu
2002-10-24 23:09:48 +00:00
Maxime Henrion
d28e8b3a0d Oops, forgot to commit this file. This is part of the fix
for ipfw2 panics on sparc64.
2002-10-24 22:32:13 +00:00
Poul-Henning Kamp
ed1ebb9691 Use a better test to prevent tasting geom.ctl so we don't screw the
regression tests.
2002-10-24 21:32:49 +00:00
Poul-Henning Kamp
a2fb4feded Fix the spechash lock order reversal by keeping an updated sum
of v_usecount in the dev_t which vcount() can return without
locking any vnodes.

Seen by:	jhb
2002-10-24 19:38:56 +00:00
Poul-Henning Kamp
7c0c26b4c4 Make sure GEOM has stopped rattling the disks before we try to mount
the root filesystem, this may be implicated in the PC98 issue.
2002-10-24 19:26:08 +00:00
Poul-Henning Kamp
d3eaf40966 Don't taste the first provider, it's /dev/geom.ctl and it's not going
to taste like anything we like anyway.
2002-10-24 19:20:28 +00:00
John Baldwin
0f8e01f117 Oops, I missed a few changes in 'device acpica' -> 'device acpi' change.
Submitted by:	Hiten Pandya <hiten@angelica.unixdaemons.com>
2002-10-24 19:17:06 +00:00
John Baldwin
d2ec391b39 Rename 'device acpica' to 'device acpi'.
Approved by:	msmith, iwasaki
2002-10-24 19:05:04 +00:00
Maxime Henrion
7c697970f4 Fix ipfw2 panics on 64-bit platforms.
Quoting luigi:

In order to make the userland code fully 64-bit clean it may
be necessary to commit other changes that may or may not cause
a minor change in the ABI.

Reviewed by:	luigi
2002-10-24 18:04:44 +00:00
Luigi Rizzo
18f13da2be src and dst address were erroneously swapped in SRC_SET and DST_SET
commands.  Use the correct one. Also affects ipfw2 in -stable.
2002-10-24 18:01:53 +00:00
Poul-Henning Kamp
1f59664b68 Don't try to be cute and save a call/return by implementing a degenerate
vrele() inline.
2002-10-24 17:55:49 +00:00
Robert Watson
eae2f20c47 Provide kernel options for the various MAC policy modules so that
they may be statically linked into the kernel.  Note that statically
linked modules, unlike dynamically linked modules, get INVARIANTS,
so if there are INVARIANTS failures, you'll bump into them rather
than not.  Add the options to NOTES.

Obtained from:	TrustedBSD Project
Sponsored by:	DARPA, Network Associates Laboratories
2002-10-24 17:21:40 +00:00
Robert Watson
7aab30d1d8 device rc no longer requires a count since jhb newbussified the rc
device driver.
2002-10-24 16:46:53 +00:00
David Xu
33862f40b0 respect TDF_SINTR, also for SINGLE_NO_EXIT threading mode, if a thread
was already suspended, do nothing.
2002-10-24 14:43:48 +00:00
Mitsuru IWASAKI
4690674e12 Add new loader tunable hw.acpi.ec.event_driven so that we control
EcWaitEventIntr()'s behavior.
Some EC controllers require this for working properly (including
sleep/wakeup).
2002-10-24 10:56:33 +00:00
Maxime Henrion
56e77afa59 Fix kernel build on sparc64 in the IPDIVERT case. 2002-10-24 09:58:50 +00:00
David Xu
9991db0cb5 don't forget to remove kse from idle queue. 2002-10-24 09:16:46 +00:00
Julian Elischer
5c8329ed6c Move thread related code from kern_proc.c to kern_thread.c.
Add code to free KSEs and KSEGRPs on exit.
Sort KSE prototypes in proc.h.
Add the missing kse_exit() syscall.

ksetest now does not leak KSEs and KSEGRPS.

Submitted by:	(parts) davidxu
2002-10-24 08:46:34 +00:00
Jeff Roberson
bbee39c629 - Now that uma_zalloc_internal is not the fast path don't be so fussy about
extra function calls.  Refactor uma_zalloc_internal into seperate functions
   for finding the most appropriate slab, filling buckets, allocating single
   items, and pulling items off of slabs.  This makes the code significantly
   cleaner.
 - This also fixes the "Returning an empty bucket." panic that a few people
   have seen.

Tested On:	alpha, x86
2002-10-24 07:59:03 +00:00
Marcel Moolenaar
0761a64f29 o Fix a size calculation based on a 8KB page, while under EFI
pages are 4KB.
o  As a second order fix, don't assume we have enough space
   after the bootinfo block left in a page to hold the memory
   map.
o  A third order fix as that we removed the assumption that a
   bootinfo block fits in a single 8KB page.

PR: ia64/39415
submitted by: Espen Skoglund <esk@ira.uka.de>
2002-10-24 07:53:12 +00:00
Yoshihiro Takahashi
2ca2ca3af6 The rc driver is not needed for pc98. 2002-10-24 07:18:24 +00:00
Marcel Moolenaar
8c7cf505d7 Build the following modules on ia64 as well:
ar, asr, bktr, cardbus, cbb, ep, exca, hea, hfa, ipfilter, lomac,
netgraph, pccard, rc, sound, sppp, vinum.
2002-10-24 07:16:24 +00:00
Jeff Roberson
bba739abf9 - Move the destructor calls so that they are not called with the zone lock
held.  This avoids a lock order reversal when destroying zones.
   Unfortunately, this also means that the free checks are not done before
   the destructor is called.

Reported by:	phk
2002-10-24 06:17:30 +00:00
Kris Kennaway
9670fc7423 Remove gcc-specific optimization/debugging CFLAGS 2002-10-24 03:56:16 +00:00
Robert Watson
51a9219f57 Commit of Makefile missed in earlier pass.
Submitted by:	kuriyama
2002-10-24 02:04:03 +00:00
Ian Dowse
efac726eeb Unbreak the automatic remapping of an INADDR_ANY destination address
to the primary local IP address when doing a TCP connect(). The
tcp_connect() code was relying on in_pcbconnect (actually in_pcbladdr)
modifying the passed-in sockaddr, and I failed to notice this in
the recent change that added in_pcbconnect_setup(). As a result,
tcp_connect() was ending up using the unmodified sockaddr address
instead of the munged version.

There are two cases to handle: if in_pcbconnect_setup() succeeds,
then the PCB has already been updated with the correct destination
address as we pass it pointers to inp_faddr and inp_fport directly.
If in_pcbconnect_setup() fails due to an existing but dead connection,
then copy the destination address from the old connection.
2002-10-24 02:02:34 +00:00
Robert Watson
8c7327e183 Provide a simple sample labeled access control policy, mac_partition.
This policy can be loaded dynamically, and assigns each process a
partition number, as well as permitting processes to operate outside
the partition.  Processes contained in a partition can only "see"
processes inside the same partition, so it's a little like jail.
The partition of a user can be set using the label mechanisms in
login.conf.  This sample policy is a good starting point for developers
wanting to learn about how to produce labeled policies, as it labels
only one kernel object, the process credential.

Obtained from:	TrustedBSD Project
Sponsored by:	DARPA, Network Associates Laboratories
2002-10-23 23:36:27 +00:00
Robert Watson
5136300015 Provide a simple sample labeled access control policy, mac_partition.
This policy can be loaded dynamically, and assigns each process a
partition number, as well as permitting processes to operate outside
the partition.  Processes contained in a partition can only "see"
processes inside the same partition, so it's a little like jail.
The partition of a user can be set using the label mechanisms in
login.conf.  This sample policy is a good starting point for developers
wanting to learn about how to produce labeled policies, as it labels
only one kernel object, the process credential.

PR:
Submitted by:
Reviewed by:
Approved by:
Obtained from:	TrustedBSD Project
Sponsored by:	DARPA, Network Associates Laboratories
2002-10-23 23:36:26 +00:00
Kirk McKusick
c0762674c9 We must be careful to avoid recursive copy-on-write faults when
trying to clean up during disk-full senarios.

Sponsored by:	DARPA & NAI Labs.
2002-10-23 21:47:02 +00:00
John Baldwin
b6ca678e32 We always need sys/pcpu.h now, not just for the SMP case.
Approved by:	jake
2002-10-23 20:18:33 +00:00
Poul-Henning Kamp
bcc4e90a1b Remove NO_GEOM from sparc64.
Reminded by:	jhb
2002-10-23 18:27:37 +00:00
John Baldwin
599c57a971 - New-bussify the rc(4) device driver.
- Add detach support to the driver so that you can kldunload the module.
  Note that currently rc_detach() fails to detach a unit if any of its
  child devices are open, thus a kldunload will fail if any of the tty
  devices are currently open.
- sys/i386/isa/ic/cd180.h was moved to sys/dev/ic/cd180.h as part of
  this change.

Requested by:	rwatson
Tested by:	rwatson
2002-10-23 15:53:09 +00:00
Hidetoshi Shimokawa
3983050934 Don't send/recieve packets when the interface is down. 2002-10-23 15:16:37 +00:00
John Baldwin
08675def10 npx(4) doesn't honor port hints so don't provide an example one. 2002-10-23 14:52:53 +00:00
Hidetoshi Shimokawa
06a93bac4f - Dequeue OCBs more safely in sbp_abort_all_ocbs(). 2002-10-23 13:04:02 +00:00
Yoshihiro Takahashi
43b6e2a273 MFi386: revision 1.10 2002-10-23 12:54:05 +00:00
Poul-Henning Kamp
0eb5dd8cc0 Only define SEEK_{SET,CUR,END} if not already defined (by <stdio.h>) 2002-10-23 12:13:10 +00:00
Dag-Erling Smørgrav
f2c1ea8152 Whitespace cleanup. 2002-10-23 10:26:54 +00:00
Mark Murray
64f82235d8 Very minor whitespace/style nit. 2002-10-23 10:14:30 +00:00
Mark Murray
54b2b8a758 Put parentheses around function-like macros to shut up warnings. 2002-10-23 10:12:12 +00:00
Maxim Konovalov
ba3a9d459c Kill EOL spaces.
Approved by:	luigi
MFC after:	1 week
2002-10-23 10:07:55 +00:00
Maxim Konovalov
6b6874b20c Use syslog for messages about dropped sessions, do not flood a console.
Suggested by:	Eugene Grosbein <eugen@kuzbass.ru>
Approved by:	luigi
MFC after:	1 week
2002-10-23 10:05:19 +00:00
Kirk McKusick
2eff16f057 Missplaced FREE_LOCK causes a panic when hit while taking a snapshot.
Sponsored by:	DARPA & NAI Labs.
2002-10-23 05:14:06 +00:00
Alexander Kabaev
96725dd01a Handle binaries with arbitrary number PT_LOAD sections, not only
ones with one text and one data section.

The text and data rlimit checks still needs to be fixed to properly
accout for additional sections.

Reviewed by:	peter (slightly different patch version)
2002-10-23 01:57:39 +00:00
SUZUKI Shinsuke
2754d95d85 fixed a kernel crash by "ifconfig stf0 inet 1.2.3.4"
MFC after:	1 week
2002-10-22 22:50:38 +00:00
Thomas Quinot
e937fdbdcd Fill in missing parts of the ATAPI/CAM XPT: implement XPT_RESET_BUS
and XPT_RESET_DEV.

In order to properly handle reset requests whether they originate in the
ATA layer (atacontrol reinit) or from the CAM layer (camcontrol reset)
ata_reinit does not cause the SIM to be deallocated anymore. The SIM
is now unconditionnally created for each ATAPI bus.

This change may cause existing bus ids to change on some setups.

Reviewed by:	roberto
Approved by:	sos
2002-10-22 20:18:51 +00:00
Robert Watson
103bcded1d Style fix: space between 'switch' and '('. 2002-10-22 19:01:49 +00:00
John Baldwin
12f65109c8 Don't dereference the 'x' pointer if it is NULL, instead skip the
assignment.  The netsmb code likes to call these functions with a NULL
x argument a lot.

Reported by:	Vallo Kallaste <kalts@estpak.ee>
2002-10-22 18:44:59 +00:00
Robert Watson
11f0df9ed0 s/mls/biba/ in a copy+paste error for a printf. 2002-10-22 18:36:47 +00:00
Jake Burkholder
bb56f27799 - Expand struct trapframe to 256 bytes, make all fields fixed width and the
same size.  Add some fields that previously overlapped with something else
  or were missing.
- Make struct regs and struct mcontext (minus floating point) the same as
  struct trapframe so converting between them is easy (null).
- Add space for saving floating point state to struct mcontext.  This requires
  that it be 64 byte aligned.
- Add assertions that none of these structures change size, as they are part
  of the ABI.
- Remove some dead code in sendsig().
- Save and restore %gsr in struct trapframe.  Remember to restore %fsr.
- Add some comments to exception.S.
2002-10-22 18:03:15 +00:00
John Baldwin
e2ded8bbde - No need for pmtimer hint anymore.
- npx doesn't need an 'at' hint anymore.
2002-10-22 17:32:51 +00:00
John Baldwin
34bf8de99d No need for pmtimer hint anymore. 2002-10-22 17:32:27 +00:00
John Baldwin
8bbdb8e89f Add an identify method that creates a pmtimer0 device if it doesn't alreedy
exist.  Hints are no longer needed to instantiate a pmtimer(4) device.
2002-10-22 17:30:52 +00:00
Robert Watson
f0ed8fc408 Remove the mac_te policy bits from 'struct oldmac' -- we're not going
to merge mac_te, since the SEBSD port of SELinux/FLASK provides a much
more mature Type Enforcement implementation.  This changes the size
of the on-disk 'struct oldmac' EA labels, which may require regeneration.

Obtained from:	TrustedBSD Project
Sponsored by:	DARPA, Network Associates Laboratories
2002-10-22 17:19:06 +00:00
Robert Watson
78704ef457 opt_mac.h is no longer required for any of these modules, remove from
the dependencies.

Obtained from:	TrustedBSD Project
Sponsored by:	DARPA, Network Associates Laboratories
2002-10-22 17:10:15 +00:00
Robert Watson
f6f5401f61 Don't enforce MAC Biba policy for socket visibility if Biba is not
explicitly enabled.

Obtained from:	TrustedBSD Project
Sponsored by:	DARPA, Network Associates Laboratories
2002-10-22 17:02:42 +00:00
Matthew N. Dodd
bd762c58db Reserve a major number for NVIDIA. 2002-10-22 16:42:16 +00:00
Robert Drehmel
d08926b1f6 Change the `mutex_prof' structure to use three variables contained
in an anonymous structure as counters, instead of an array with
preprocessor-defined names for indices.  Remove the associated XXX-
comment.
2002-10-22 16:06:28 +00:00
Robert Watson
3e732e7d7d Invoke mac_check_vnode_mmap() during mmap operations on vnodes,
permitting policies to restrict access to memory mapping based on
the credential requesting the mapping, the target vnode, the
requested rights, or other policy considerations.

Approved by:	re
Obtained from:	TrustedBSD Project
Sponsored by:	DARPA, Network Associates Laboratories
2002-10-22 15:56:44 +00:00
Robert Watson
1cbfd977fd Introduce MAC_CHECK_VNODE_SWAPON, which permits MAC policies to
perform authorization checks during swapon() events; policies
might choose to enforce protections based on the credential
requesting the swap configuration, the target of the swap operation,
or other factors such as internal policy state.

Approved by:	re
Obtained from:	TrustedBSD Project
Sponsored by:	DARPA, Network Associates Laboratories
2002-10-22 15:53:43 +00:00
Robert Watson
2789e47e2c Missed in previous merge: export sizeof(struct oldmac) rather than
sizeof(struct mac).

Obtained from:	TrustedBSD Project
Sponsored by:	DARPA, Network Associates Laboratories
2002-10-22 15:33:33 +00:00
Yoshihiro Takahashi
53b8edec96 MFi386: revision 1.543. 2002-10-22 15:25:25 +00:00
Yoshihiro Takahashi
2ea0bd9562 Merged from sys/isa/syscons_isa.c revision 1.20. 2002-10-22 15:22:49 +00:00
Yoshihiro Takahashi
abf7bd9e91 MFi386: revisions 1.189 and 1.190. 2002-10-22 15:19:46 +00:00
Robert Watson
db83b66868 Move the label initialized flag into _label.h: it's no longer
exported to userspace.

Approved by:	re
Obtained from:	TrustedBSD Project
Sponsored by:	DARPA, Network Associates Laboratories
2002-10-22 14:32:54 +00:00
Robert Watson
24e8d0d07b Adapt MAC policies for the new user API changes; teach policies how
to parse their own label elements (some cleanup to occur here in the
future to use the newly added kernel strsep()).  Policies now
entirely encapsulate their notion of label in the policy module.

Approved by:	re
Obtained from:	TrustedBSD Project
Sponsored by:	DARPA, Network Associates Laboratories
2002-10-22 14:31:34 +00:00
John Baldwin
1c865ac70e - Check that a process isn't a new process (p_state == PRS_NEW) before
trying to acquire it's proc lock since the proc lock may not have been
  constructed yet.
- Split up the one big comment at the top of the loop and put the pieces
  in the right order above the various checks.

Reported by:	kris (1)
2002-10-22 14:31:32 +00:00
Robert Watson
f7b951a8e0 Support the new MAC user API in kernel: modify existing system calls
to use a modified notion of 'struct mac', and flesh out the new variation
system calls (almost identical to existing ones except that they permit
a pid to be specified for process label retrieval, and don't follow
symlinks).  This generalizes the label API so that the framework is
now almost entirely policy-agnostic.

Approved by:	re
Obtained from:	TrustedBSD Project
Sponsored by:	DARPA, Network Associates Laboratories
2002-10-22 14:29:47 +00:00
Robert Watson
475b9d0a7c Revised APIs for user process label management; the existing APIs relied
on all label parsing occuring in userland, and knowledge of the loaded
policies in the user libraries.  This revision of the API pushes that
parsing into the kernel, avoiding the need for shared library support
of policies in userland, permitting statically linked binaries (such
as ls, ps, and ifconfig) to use MAC labels.  In these API revisions,
high level parsing of the MAC label is done in the MAC Framework,
and interpretation of label elements is delegated to the MAC policy
modules.  This permits modules to export zero or more label elements
to user space if desired, and support them in the manner they want
and with the semantics they want.  This is believed to be the final
revision of this interface: from the perspective of user applications,
the API has actually not changed, although the ABI has.

Approved by:	re
Obtained from:	TrustedBSD Project
Sponsored by:	DARPA, Network Associates Laboratories
2002-10-22 14:27:44 +00:00
Robert Watson
5cb559a5e0 Regen. 2002-10-22 14:23:52 +00:00