Commit Graph

627 Commits

Author SHA1 Message Date
des
2756b6c964 More low-hanging fruit: kill caddr_t in calls to wakeup(9) / [mt]sleep(9). 2003-03-02 16:54:40 +00:00
des
7b016a11e6 Clean up whitespace, s/register //, refrain from strong urge to ANSIfy. 2003-03-02 15:56:49 +00:00
des
765ebc59b4 uiomove-related caddr_t -> void * (just the low-hanging fruit) 2003-03-02 15:50:23 +00:00
ume
5820529758 Add M_WAITOK 2003-02-20 11:24:55 +00:00
imp
cf874b345d Back out M_* changes, per decision of the TRB.
Approved by: trb
2003-02-19 05:47:46 +00:00
tjr
6ebeaa8ec8 Use the proc lock to protect p_realtimer instead of Giant, and obtain
sched_lock around accesses to p_stats->p_timer[] to avoid a potential
race with hardclock. getitimer(), setitimer() and the realitexpire()
callout are now Giant-free.
2003-02-17 10:03:02 +00:00
phk
4bfb37f22e Remove #include <sys/dkstat.h> 2003-02-16 14:13:23 +00:00
tjr
6ff2b5ed6a Add MPSAFE comment to linux_sigpending(). 2003-02-16 02:33:12 +00:00
tjr
5c16d0c538 Obtain proc lock around modification of p_siglist in linux_wait4(). 2003-02-14 08:59:49 +00:00
dwmalone
7901f87059 1) Linux_sendto was trashing the BSD sockaddr it put in the stackgap,
so be more careful about calling stackgap_init.

    Tested by: Fred Souza <fred@storming.org>

2) Linux_sendmsg was forgetting to fill out the bsd_args struct.

    Reviewed by: ume

3) The args to linux_connect have differently named types on alpha and
i386, so add a cast to stop gcc complaining.

    Spotted by: peter
2003-02-08 09:26:31 +00:00
ume
f1aeff9dcb Avoid undefined symbol error with an IPv4 only kernel.
Reported by:	"Sergey A. Osokin" <osa@freebsd.org.ru>
2003-02-05 11:05:45 +00:00
ume
9689f0580d Add IPv6 support for Linuxlator.
Reviewed by:	dwmalone
MFC after:	10 days
2003-02-03 17:43:20 +00:00
alfred
b5c0015ac9 Consolidate MIN/MAX macros into one place (param.h).
Submitted by: Hiten Pandya <hiten@unixdaemons.com>
2003-02-02 13:17:30 +00:00
alfred
bf8e8a6e8f Remove M_TRYWAIT/M_WAITOK/M_WAIT. Callers should use 0.
Merge M_NOWAIT/M_DONTWAIT into a single flag M_NOWAIT.
2003-01-21 08:56:16 +00:00
dillon
5a2a297c7b Add missing #include
Submitted by:	"Sam Leffler" <sam@errno.com>
2003-01-14 21:31:31 +00:00
dillon
e08a8297e2 Apply bandaid to bring svr4_sys_waitsys() in line with exit1(). This
routine really need to be gutted and merged with exit1().

Reviewed by:	jhb
2003-01-13 22:44:23 +00:00
dillon
ccd5574cc6 Bow to the whining masses and change a union back into void *. Retain
removal of unnecessary casts and throw in some minor cleanups to see if
anyone complains, just for the hell of it.
2003-01-13 00:33:17 +00:00
dillon
ddf9ef103e Change struct file f_data to un_data, a union of the correct struct
pointer types, and remove a huge number of casts from code using it.

Change struct xfile xf_data to xun_data (ABI is still compatible).

If we need to add a #define for f_data and xf_data we can, but I don't
think it will be necessary.  There are no operational changes in this
commit.
2003-01-12 01:37:13 +00:00
alfred
6f979f7e5f Add function linux_msg() for regulating output from the linux emulation
code, make the emulator use it.

Rename unsupported_msg() to unimplemented_syscall().  Rename some arguments
for clarity

Fixup grammar.

Requested by: bde
2003-01-02 02:19:10 +00:00
alfred
8ae9cf91c8 When complaining about obsolete/unimplemented syscalls output the process
name to make things more clear for the user.

PR: 46661
MFC After: 3 days
2003-01-01 01:42:57 +00:00
rwatson
22c41db3e5 Synchronize to kern/syscalls.master:1.139.
Obtained from:	TrustedBSD Project
2002-12-29 20:33:26 +00:00
hsu
82e1e3bab0 SMP locking for ifnet list. 2002-12-22 05:35:03 +00:00
marcel
3c86a795f0 Regen: swapoff 2002-12-16 00:49:36 +00:00
marcel
4451a382e7 Change swapoff from MNOPROTO to UNIMPL. The former doesn't work. 2002-12-16 00:48:52 +00:00
dillon
b43fb3e920 This is David Schultz's swapoff code which I am finally able to commit.
This should be considered highly experimental for the moment.

Submitted by:	David Schultz <dschultz@uclink.Berkeley.EDU>
MFC after:	3 weeks
2002-12-15 19:17:57 +00:00
alfred
d070c0a52d SCARGS removal take II. 2002-12-14 01:56:26 +00:00
alfred
4f48184fb2 Backout removal SCARGS, the code freeze is only "selectively" over. 2002-12-13 22:41:47 +00:00
alfred
d19b4e039d Remove SCARGS.
Reviewed by: md5
2002-12-13 22:27:25 +00:00
iedowse
fe6446a055 Fix emulation of the fcntl64() syscall. In Linux, this is exactly
the same as fcntl() except that it supports the new 64-bit file
locking commands (LINUX_F_GETLK64 etc) that use the `flock64'
structure. We had been interpreting all flock structures passed to
fcntl64() as `struct flock64' instead of only the ones from F_*64
commands.

The glibc in linux_base-7 uses fcntl64() by default, but the bug
was often non-fatal since the misinterpretation typically only
causes junk to appear in the `l_len' field and most junk values are
accepted as valid range lengths. The result is occasional EINVAL
errors from F_SETLK and a few bytes after the supplied `struct
flock' getting clobbered during F_GETLK.

PR:		kern/37656
Reviewed by:	marcel
Approved by:	re
MFC after:	1 week
2002-12-08 18:30:44 +00:00
deischen
54d9a4c0f7 Regenerate after adding syscalls. 2002-11-16 23:48:14 +00:00
deischen
280e9bbfe8 Add *context() syscalls to ia64 32-bit compatability table as requested
in kern/syscalls.master.
2002-11-16 15:15:17 +00:00
rwatson
6c4f4d26f4 Bring in two sets of changes:
(1) Permit userland applications to request a change of label atomic
    with an execve() via mac_execve().  This is required for the
    SEBSD port of SELinux/FLASK.  Attempts to invoke this without
    MAC compiled in result in ENOSYS, as with all other MAC system
    calls.  Complexity, if desired, is present in policy modules,
    rather than the framework.

(2) Permit policies to have access to both the label of the vnode
    being executed as well as the interpreter if it's a shell
    script or related UNIX nonsense.  Because we can't hold both
    vnode locks at the same time, cache the interpreter label.
    SEBSD relies on this because it supports secure transitioning
    via shell script executables.  Other policies might want to
    take both labels into account during an integrity or
    confidentiality decision at execve()-time.

Approved by:	re
Obtained from:	TrustedBSD Project
Sponsored by:	DARPA, Network Associates Laboratories
2002-11-05 17:51:56 +00:00
rwatson
e05e16efa1 Remove reference to struct execve_args from struct imgact, which
describes an image activation instance.  Instead, make use of the
existing fname structure entry, and introduce two new entries,
userspace_argv, and userspace_envv.  With the addition of
mac_execve(), this divorces the image structure from the specifics
of the execve() system call, removes a redundant pointer, etc.
No semantic change from current behavior, but it means that the
structure doesn't depend on syscalls.master-generated includes.

There seems to be some redundant initialization of imgact entries,
which I have maintained, but which could probably use some cleaning
up at some point.

Obtained from:	TrustedBSD Project
Sponsored by:	DARPA, Network Associates Laboratories
2002-11-05 01:59:56 +00:00
rwatson
3f3d082989 Sync to src/sys/kern/syscalls.master 2002-11-02 23:55:30 +00:00
julian
8aebe48934 Remove the process state PRS_WAIT.
It is never used. I left it there from pre-KSE days as I didn't know
if I'd need it or not but now I know I don't.. It's functionality
is in TDI_IWAIT in the thread.
2002-10-21 22:27:36 +00:00
peter
a75c662939 Stake a claim on 418 (__xstat), 419 (__xfstat), 420 (__xlstat) 2002-10-19 22:25:31 +00:00
peter
6f9d4eb337 Grab 416/417 real estate before I get burned while testing again.
This is for the not-quite-ready signal/fpu abi stuff.  It may not see
the light of day, but I'm certainly not going to be able to validate it
when getting shot in the foot due to syscall number conflicts.
2002-10-19 22:09:23 +00:00
marcel
d8d309f454 Implement the CDROMREADAUDIO ioctl. 2002-10-19 21:11:43 +00:00
rwatson
f3cd77cf07 Add a placeholder for the execve_mac() system call, similar to SELinux's
execve_secure() system call, which permits a process to pass in a label
for a label change during exec.  This permits SELinux to change the
label for the resulting exec without a race following a manual label
change on the process.  Because this interface uses our general purpose
MAC label abstraction, we call it execve_mac(), and wrap our port of
SELinux's execve_secure() around it with appropriate sid mappings.

Obtained from:	TrustedBSD Project
Sponsored by:	DARPA, Network Associates Laboratories
2002-10-19 21:06:57 +00:00
robert
b00c7ffed8 Replace the conventional usage of strncpy() by using strlcpy(). 2002-10-17 22:27:21 +00:00
robert
ec6b5086a5 - Use strlcpy() rather than strncpy() to copy NUL terminated
strings.
 - Pass the correct buffer size to getcredhostname().
2002-10-17 22:00:30 +00:00
sobomax
591d270f4c - Add support for IPC_64 extensions into shmctl(2), semctl(2) and msgctl(2);
- add wrappers for mmap2(2) and ftruncate64(2) system calls;
- don't spam console with printf's when VFAT_READDIR_BOTH ioctl(2) is invoked;
- add support for SOUND_MIXER_READ_STEREODEVS ioctl(2);
- make msgctl(IPC_STAT) and IPC_SET actually working by converting from
  BSD msqid_ds to Linux and vice versa;
- properly return EINVAL if semget(2) is called with nsems being negative.

Reviewed by:	marcel
Approved by:	marcel
Tested with:	LSB runtime test
2002-10-11 11:43:09 +00:00
peter
b3c87d7052 re-regen. Sigh. 2002-10-09 22:40:41 +00:00
peter
f7a3aba232 Sigh. Fix fat-fingering of diff. I knew this was going to happen. 2002-10-09 22:40:02 +00:00
peter
8a5224b1c2 regenerate. sendfile stuff and other recently picked up stubs. 2002-10-09 22:28:48 +00:00
peter
54a5ebbeb2 Try and deal with the #ifdef COMPAT_FREEBSD4 sendfile stuff. This would
have been a lot easier if do_sendfile() was usable externally.
2002-10-09 22:27:24 +00:00
peter
641a3d5cb3 Try and patch up some tab-to-space spammage. 2002-10-09 22:14:35 +00:00
peter
dbe70a6b44 Add placeholder stubs for nsendfile, mac_syscall, ksem_close, ksem_post,
ksem_wait, ksem_trywait, ksem_init, ksem_open, ksem_unlink, ksem_getvalue,
ksem_destroy, __mac_get_pid, __mac_get_link, __mac_set_link,
extattr_set_link, extattr_get_link, extattr_delete_link.
2002-10-09 22:10:23 +00:00
rwatson
1f2df65750 Integrate mac_check_socket_send() and mac_check_socket_receive()
checks from the MAC tree: allow policies to perform access control
for the ability of a process to send and receive data via a socket.
At some point, we might also pass in additional address information
if an explicit address is requested on send.

Obtained from:	TrustedBSD Project
Sponsored by:	DARPA, Network Associates Laboratories
2002-10-06 14:39:15 +00:00
archie
9301eb9484 Let kse_wakeup() take a KSE mailbox pointer argument.
Reviewed by:	julian
2002-10-02 16:48:16 +00:00
jmallett
7a693db242 Back our kernel support for reliable signal queues.
Requested by:	rwatson, phk, and many others
2002-10-01 17:15:53 +00:00
jmallett
0341f71df1 First half of implementation of ksiginfo, signal queues, and such. This
gets signals operating based on a TailQ, and is good enough to run X11,
GNOME, and do job control.  There are some intricate parts which could be
more refined to match the sigset_t versions, but those require further
evaluation of directions in which our signal system can expand and contract
to fit our needs.

After this has been in the tree for a while, I will make in kernel API
changes, most notably to trapsignal(9) and sendsig(9), to use ksiginfo
more robustly, such that we can actually pass information with our
(queued) signals to the userland.  That will also result in using a
struct ksiginfo pointer, rather than a signal number, in a lot of
kern_sig.c, to refer to an individual pending signal queue member, but
right now there is no defined behaviour for such.

CODAFS is unfinished in this regard because the logic is unclear in
some places.

Sponsored by:	New Gold Technology
Reviewed by:	bde, tjr, jake [an older version, logic similar]
2002-09-30 20:20:22 +00:00
archie
904b65e85d 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
65328ea561 - Hold the vn lock over vm_mmap(). 2002-09-25 02:42:04 +00:00
mini
7a31c08874 Back out last commit. Linux uses the old 4.3BSD sockaddr format. 2002-09-24 07:03:01 +00:00
jhb
fa58184de8 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
jhb
2a11973f91 Use correct variable name so that previous commit actually compiles. 2002-09-23 20:58:59 +00:00
mini
e206834961 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
2b71a04b1e 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
mdodd
557fe83a62 Remove NVIDIA ioctl bits. They will be provided in a kernel module. 2002-09-20 19:19:58 +00:00
phk
e5427d6bd3 Put an XXX comment here to point somebody in the right direction. 2002-09-20 17:55:47 +00:00
imp
42910e6e7c Current uses struct thread *td rather than struct proc *p. 2002-09-20 04:30:00 +00:00
mdodd
0c5a203325 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
mdodd
e6b61cc65a 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
5702a380a5 Completely redo thread states.
Reviewed by:	davidxu@freebsd.org
2002-09-11 08:13:56 +00:00
peter
21b23e4fe8 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
267650898e 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
52b123c1cb Fix a missing line in a cut/paste error. 2002-09-07 07:13:08 +00:00
peter
9688aed888 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
bde
b307c79502 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
bde
1441f3f82d 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
0e9ab9c4f6 Implement LINUX_TIOCSCTTY.
PR: kern/42404
2002-09-05 02:51:25 +00:00
iedowse
2271d6f41d 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
iedowse
07f07ebc49 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
ce650f8c33 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
iedowse
285c5385d5 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
ffe6f08557 Make this compile. 2002-08-31 19:33:59 +00:00
dillon
85479bded2 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
7a233d4c9f Replace (ab)uses of "NULL" where "0" is really meant. 2002-08-22 21:24:01 +00:00
sobomax
f6cebc0606 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
rwatson
3246fbf45f 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
rwatson
2b82cd24f1 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
rwatson
44404e4547 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
rwatson
1aa234e4f7 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
f5d2a2635e - Add the missing td argument to vn_lock that I missed in my last commit. 2002-08-13 20:34:30 +00:00
jeff
a996673e12 - 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
rwatson
a4eb7ce808 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
rwatson
72f5246f78 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
rwatson
d6f287a5ac 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
02517b6731 - 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
rwatson
b246ee0a3c 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
c93c6004b2 Regenerate 2002-07-20 02:56:34 +00:00
peter
cc7b2e4248 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
14d150fb7b 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
e6ff14fd0c 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
1b293bfa42 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
aa2dc0a5d9 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
arr
614440e53d - 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
rwatson
6231c89ca3 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
6995a6ac42 catch up with ktrace changes, KTRPOINT takes a 'struct thread' not
'struct proc' now.
2002-06-11 21:14:02 +00:00