Commit Graph

525 Commits

Author SHA1 Message Date
Archie Cobbs
89def71cbd Make the following name changes to KSE related functions, etc., to better
represent their purpose and minimize namespace conflicts:

	kse_fn_t		-> kse_func_t
	struct thread_mailbox	-> struct kse_thr_mailbox
	thread_interrupt()	-> kse_thr_interrupt()
	kse_yield()		-> kse_release()
	kse_new()		-> kse_create()

Add missing declaration of kse_thr_interrupt() to <sys/kse.h>.
Regenerate the various generated syscall files. Minor style fixes.

Reviewed by:	julian
2002-09-25 18:10:42 +00:00
Jeff Roberson
0fa89fc7d9 - Hold the vn lock over vm_mmap(). 2002-09-25 02:42:04 +00:00
Jonathan Mini
044af7c357 Back out last commit. Linux uses the old 4.3BSD sockaddr format. 2002-09-24 07:03:01 +00:00
John Baldwin
bb25b2dda9 Ok, make this compile for real this time. recvfrom_args doesn't have a
fromlen member, instead it has a fromlenaddr pointer member.  Set it to
NULL.
2002-09-23 21:05:41 +00:00
John Baldwin
1d26b5606f Use correct variable name so that previous commit actually compiles. 2002-09-23 20:58:59 +00:00
Jonathan Mini
d7f94a7a0e Don't use compatability syscall wrappers in emulation code.
This is needed for the COMPAT_FREEBSD3 option split.

Reviewed by:	alfred, jake
2002-09-23 06:17:54 +00:00
Jake Burkholder
05ba50f522 Use the fields in the sysentvec and in the vm map header in place of the
constants VM_MIN_ADDRESS, VM_MAXUSER_ADDRESS, USRSTACK and PS_STRINGS.
This is mainly so that they can be variable even for the native abi, based
on different machine types.  Get stack protections from the sysentvec too.
This makes it trivial to map the stack non-executable for certain abis, on
machines that support it.
2002-09-21 22:07:17 +00:00
Matthew N. Dodd
27830d1e8e Remove NVIDIA ioctl bits. They will be provided in a kernel module. 2002-09-20 19:19:58 +00:00
Poul-Henning Kamp
d734859c2a Put an XXX comment here to point somebody in the right direction. 2002-09-20 17:55:47 +00:00
Warner Losh
fe7d45f8f8 Current uses struct thread *td rather than struct proc *p. 2002-09-20 04:30:00 +00:00
Matthew N. Dodd
c5afa58784 Pass flags to msync() accounting for differences in the definition of
MS_SYNC on FreeBSD and Linux.

Submitted by:	 Christian Zander <zander@minion.de>
2002-09-19 19:02:54 +00:00
Matthew N. Dodd
21ed01faf3 This patch extends the FreeBSD Linux compatibility layer to support
NVIDIA API calls; more specifically, it adds an ioctl() handler for
the range of possible NVIDIA ioctl numbers.

Submitted by:	 Christian Zander <zander@minion.de>
2002-09-19 18:56:55 +00:00
Julian Elischer
71fad9fdee Completely redo thread states.
Reviewed by:	davidxu@freebsd.org
2002-09-11 08:13:56 +00:00
Peter Wemm
a9f9df5daf Tidy up some loose ends that bde pointed out. caddr_t bad, ok?
Move fill_kinfo_proc to before we copy the results instead of after
the copy and too late.

There is still more to do here.
2002-09-07 22:31:44 +00:00
Peter Wemm
99a17113cd The true value of how the kernel was configured for KSTACK_PAGES was not
available at module compile time.  Do not #include the bogus
opt_kstack_pages.h at this point and instead refer to the variables that
are also exported via sysctl.
2002-09-07 22:15:47 +00:00
Peter Wemm
3bf6fa5503 Fix a missing line in a cut/paste error. 2002-09-07 07:13:08 +00:00
Peter Wemm
710ded3ac5 Collect the a.out coredump code into the calling functions.
XXX why does pecoff dump in a.out format?
2002-09-07 01:23:51 +00:00
Bruce Evans
367797e031 Do not cast from a pointer to an integer of a possibly different size.
This fixes a warning on i386's with 64-bit longs.
2002-09-05 12:30:54 +00:00
Bruce Evans
85422e62d3 Include <sys/malloc.h> instead of depending on namespace pollution 2
layers deep in <sys/proc.h> or <sys/vnode.h>.

Removed unused includes.  Sorted includes.
2002-09-05 08:13:20 +00:00
Marcel Moolenaar
4048f0fdfa Implement LINUX_TIOCSCTTY.
PR: kern/42404
2002-09-05 02:51:25 +00:00
Ian Dowse
c9400e18a9 Use the new kern_*() functions to avoid using the stack gap in
linux_fcntl*() and linux_getcwd().
2002-09-02 22:46:05 +00:00
Ian Dowse
206a5d3a0c Use the new kern_* functions to avoid the need to store arguments
in the stack gap. This converts most VFS and signal related system
calls, as well as select().

Discussed on:	-arch
Approved by:	marcel
2002-09-01 22:30:27 +00:00
Jake Burkholder
f36ba45234 Added fields for VM_MIN_ADDRESS, PS_STRINGS and stack protections to
sysentvec.  Initialized all fields of all sysentvecs, which will allow
them to be used instead of constants in more places.  Provided stack
fixup routines for emulations that previously used the default.
2002-09-01 21:41:24 +00:00
Ian Dowse
ff76632189 Add a new function linux_emul_convpath(), which is a version of
linux_emul_find() that does not use stack gap storage but instead
always returns the resulting path in a malloc'd kernel buffer.
Implement linux_emul_find() in terms of this function. Also add
LCONVPATH* macros that wrap linux_emul_convpath in the same way
that the CHECKALT* macros wrap linux_emul_find().
2002-09-01 21:15:37 +00:00
Jake Burkholder
d920042a00 Make this compile. 2002-08-31 19:33:59 +00:00
Matthew Dillon
cac4515267 Implement data, text, and vmem limit checking in the elf loader and svr4
compat code.  Clean up accounting for multiple segments.  Part 1/2.

Submitted by:	Andrey Alekseyev <uitm@zenon.net> (with some modifications)
MFC after:	3 days
2002-08-30 18:09:46 +00:00
Archie Cobbs
4a6a94d8d8 Replace (ab)uses of "NULL" where "0" is really meant. 2002-08-22 21:24:01 +00:00
Maxim Sobolev
62f7648682 Increase size of ifnet.if_flags from 16 bits (short) to 32 bits (int). To avoid
breaking application ABI use unused ifreq.ifru_flags[1] for upper 16 bits in
SIOCSIFFLAGS and SIOCGIFFLAGS ioctl's.

Reviewed by:	-hackers, -net
2002-08-18 07:05:00 +00:00
Robert Watson
d49fa1ca6e In continuation of early fileop credential changes, modify fo_ioctl() to
accept an 'active_cred' argument reflecting the credential of the thread
initiating the ioctl operation.

- Change fo_ioctl() to accept active_cred; change consumers of the
  fo_ioctl() interface to generally pass active_cred from td->td_ucred.
- In fifofs, initialize filetmp.f_cred to ap->a_cred so that the
  invocations of soo_ioctl() are provided access to the calling f_cred.
  Pass ap->a_td->td_ucred as the active_cred, but note that this is
  required because we don't yet distinguish file_cred and active_cred
  in invoking VOP's.
- Update kqueue_ioctl() for its new argument.
- Update pipe_ioctl() for its new argument, pass active_cred rather
  than td_ucred to MAC for authorization.
- Update soo_ioctl() for its new argument.
- Update vn_ioctl() for its new argument, use active_cred rather than
  td->td_ucred to authorize VOP_IOCTL() and the associated VOP_GETATTR().

Obtained from:	TrustedBSD Project
Sponsored by:	DARPA, NAI Labs
2002-08-17 02:36:16 +00:00
Robert Watson
ea6027a8e1 Make similar changes to fo_stat() and fo_poll() as made earlier to
fo_read() and fo_write(): explicitly use the cred argument to fo_poll()
as "active_cred" using the passed file descriptor's f_cred reference
to provide access to the file credential.  Add an active_cred
argument to fo_stat() so that implementers have access to the active
credential as well as the file credential.  Generally modify callers
of fo_stat() to pass in td->td_ucred rather than fp->f_cred, which
was redundantly provided via the fp argument.  This set of modifications
also permits threads to perform these operations on behalf of another
thread without modifying their credential.

Trickle this change down into fo_stat/poll() implementations:

- badfo_poll(), badfo_stat(): modify/add arguments.
- kqueue_poll(), kqueue_stat(): modify arguments.
- pipe_poll(), pipe_stat(): modify/add arguments, pass active_cred to
  MAC checks rather than td->td_ucred.
- soo_poll(), soo_stat(): modify/add arguments, pass fp->f_cred rather
  than cred to pru_sopoll() to maintain current semantics.
- sopoll(): moidfy arguments.
- vn_poll(), vn_statfile(): modify/add arguments, pass new arguments
  to vn_stat().  Pass active_cred to MAC and fp->f_cred to VOP_POLL()
  to maintian current semantics.
- vn_close(): rename cred to file_cred to reflect reality while I'm here.
- vn_stat(): Add active_cred and file_cred arguments to vn_stat()
  and consumers so that this distinction is maintained at the VFS
  as well as 'struct file' layer.  Pass active_cred instead of
  td->td_ucred to MAC and to VOP_GETATTR() to maintain current semantics.

- fifofs: modify the creation of a "filetemp" so that the file
  credential is properly initialized and can be used in the socket
  code if desired.  Pass ap->a_td->td_ucred as the active
  credential to soo_poll().  If we teach the vnop interface about
  the distinction between file and active credentials, we would use
  the active credential here.

Note that current inconsistent passing of active_cred vs. file_cred to
VOP's is maintained.  It's not clear why GETATTR would be authorized
using active_cred while POLL would be authorized using file_cred at
the file system level.

Obtained from:	TrustedBSD Project
Sponsored by:	DARPA, NAI Labs
2002-08-16 12:52:03 +00:00
Robert Watson
9ca435893b In order to better support flexible and extensible access control,
make a series of modifications to the credential arguments relating
to file read and write operations to cliarfy which credential is
used for what:

- Change fo_read() and fo_write() to accept "active_cred" instead of
  "cred", and change the semantics of consumers of fo_read() and
  fo_write() to pass the active credential of the thread requesting
  an operation rather than the cached file cred.  The cached file
  cred is still available in fo_read() and fo_write() consumers
  via fp->f_cred.  These changes largely in sys_generic.c.

For each implementation of fo_read() and fo_write(), update cred
usage to reflect this change and maintain current semantics:

- badfo_readwrite() unchanged
- kqueue_read/write() unchanged
  pipe_read/write() now authorize MAC using active_cred rather
  than td->td_ucred
- soo_read/write() unchanged
- vn_read/write() now authorize MAC using active_cred but
  VOP_READ/WRITE() with fp->f_cred

Modify vn_rdwr() to accept two credential arguments instead of a
single credential: active_cred and file_cred.  Use active_cred
for MAC authorization, and select a credential for use in
VOP_READ/WRITE() based on whether file_cred is NULL or not.  If
file_cred is provided, authorize the VOP using that cred,
otherwise the active credential, matching current semantics.

Modify current vn_rdwr() consumers to pass a file_cred if used
in the context of a struct file, and to always pass active_cred.
When vn_rdwr() is used without a file_cred, pass NOCRED.

These changes should maintain current semantics for read/write,
but avoid a redundant passing of fp->f_cred, as well as making
it more clear what the origin of each credential is in file
descriptor read/write operations.

Follow-up commits will make similar changes to other file descriptor
operations, and modify the MAC framework to pass both credentials
to MAC policy modules so they can implement either semantic for
revocation.

Obtained from:	TrustedBSD Project
Sponsored by:	DARPA, NAI Labs
2002-08-15 20:55:08 +00:00
Robert Watson
6835e7427c On MAC check failure for readdir, use 'goto out' to use the common exit
handling, rather than returning directly to prevent leaking of vnode
reference/lock.

Obtained from:	TrustedBSD Project
Sponsored by:	DARPA, NAI Labs
2002-08-15 15:46:10 +00:00
Jeff Roberson
08d2496abf - Add the missing td argument to vn_lock that I missed in my last commit. 2002-08-13 20:34:30 +00:00
Jeff Roberson
619eb6e579 - Hold the vnode lock throughout execve.
- Set VV_TEXT in the top level execve code.
 - Fixup the image activators to deal with the newly locked vnode.
2002-08-13 06:55:28 +00:00
Robert Watson
7d834ce78d Enforce MAC policies for the locally implemented vnode services in
SVR4 emulation relating to readdir() and fd_revoke().  All other
services appear to be implemented by simply wrapping existing
FreeBSD native system call implementations, so don't require local
instrumentation in the emulator module.

Obtained from:	TrustedBSD Project
Sponsored by:	DARPA, NAI Labs
2002-08-12 01:42:21 +00:00
Robert Watson
9702d65212 Another fix that wasn't pulled in from the MAC branch: the
struct mount is not cached as *mp at this point, so use
vp->v_mount directly, following the check that it's non-NULL.

Obtained from:	TrustedBSD Project
Sponsored by:	DARPA, NAI Labs
2002-08-12 01:24:26 +00:00
Robert Watson
64844747f0 Fix missing parens in MAC readdir() check. This fix was in the MAC
branch, but apparently didn't get moved over when it was made.

Obtained from:	TrustedBSD Project
Sponsored by:	DARPA, NAI Labs
2002-08-12 01:18:33 +00:00
Jeff Roberson
e6e370a7fe - Replace v_flag with v_iflag and v_vflag
- v_vflag is protected by the vnode lock and is used when synchronization
   with VOP calls is needed.
 - v_iflag is protected by interlock and is used for dealing with vnode
   management issues.  These flags include X/O LOCK, FREE, DOOMED, etc.
 - All accesses to v_iflag and v_vflag have either been locked or marked with
   mp_fixme's.
 - Many ASSERT_VOP_LOCKED calls have been added where the locking was not
   clear.
 - Many functions in vfs_subr.c were restructured to provide for stronger
   locking.

Idea stolen from:	BSD/OS
2002-08-04 10:29:36 +00:00
Robert Watson
eddc160e00 Introduce support for Mandatory Access Control and extensible
kernel access control.

Invoke appropriate MAC entry points for a number of VFS-related
operations in the Linux ABI module.  In particular, handle uselib
in a manner similar to open() (more work is probably needed here),
as well as handle statfs(), and linux readdir()-like calls.

Obtained from:	TrustedBSD Project
Sponsored by:	DARPA, NAI Labs
2002-08-01 22:23:02 +00:00
Peter Wemm
db27052e18 Regenerate 2002-07-20 02:56:34 +00:00
Peter Wemm
3ebc124838 Infrastructure tweaks to allow having both an Elf32 and an Elf64 executable
handler in the kernel at the same time.  Also, allow for the
exec_new_vmspace() code to build a different sized vmspace depending on
the executable environment.  This is a big help for execing i386 binaries
on ia64.   The ELF exec code grows the ability to map partial pages when
there is a page size difference, eg: emulating 4K pages on 8K or 16K
hardware pages.

Flesh out the i386 emulation support for ia64.  At this point, the only
binary that I know of that fails is cvsup, because the cvsup runtime
tries to execute code in pages not marked executable.

Obtained from:  dfr (mostly, many tweaks from me).
2002-07-20 02:56:12 +00:00
Robert Drehmel
ad32affe91 Move the switch statement labels for the explicit 64-bit
command arguments into the correct function, linux_fcntl64(),
and thus out of the scope of a compilation for the alpha
platform.

Requested by:	obrien
2002-07-09 19:25:43 +00:00
Robert Drehmel
aaaefc6b56 Enable emulation of the F_GETLK64, F_SETLK64, and F_SETLKW64
lock commands arguments to linux_fcntl64().
2002-07-09 15:57:12 +00:00
Robert Drehmel
6f2df7152b The comment marked with XXX was right: emulate SVR4 for
ELF binaries branded with ELFOSABI_SYSV, this is reported
to work and brandelf(1) puts this type into files if "SVR4"
was specified.
2002-07-09 14:59:27 +00:00
Julian Elischer
e602ba25fd Part 1 of KSE-III
The ability to schedule multiple threads per process
(one one cpu) by making ALL system calls optionally asynchronous.
to come: ia64 and power-pc patches, patches for gdb, test program (in tools)

Reviewed by:	Almost everyone who counts
	(at various times, peter, jhb, matt, alfred, mini, bernd,
	and a cast of thousands)

	NOTE: this is still Beta code, and contains lots of debugging stuff.
	expect slight instability in signals..
2002-06-29 17:26:22 +00:00
Andrew R. Reiter
57d14ec550 - Remove the Giant acquisition from linux_socket_ioctl() as it was really
there to protect fdrop() (which in turn can call vrele()), however,
  fdrop_locked() grabs Giant for us, so we do not have to.

Reviewed by:	jhb
Inspired by:	alc
2002-06-26 15:53:11 +00:00
Robert Watson
fa3b8ffb32 Add a comment about how we should use vn_open() here instead of directly
invoking VOP_OPEN().  This would reduce code redundancy with the rest
of the kernel, and also is required for MAC to work properly.
2002-06-14 07:24:01 +00:00
Alfred Perlstein
85145119ed catch up with ktrace changes, KTRPOINT takes a 'struct thread' not
'struct proc' now.
2002-06-11 21:14:02 +00:00
John Baldwin
60a9bb197d Catch up to changes in ktrace API. 2002-06-07 05:37:18 +00:00
Jens Schweikhardt
21dc7d4f57 Fix typo in the BSD copyright: s/withough/without/
Spotted and suggested by:	des
MFC after:	3 weeks
2002-06-02 20:05:59 +00:00