Commit Graph

1978 Commits

Author SHA1 Message Date
Konstantin Belousov
74f5d68011 Make linux_sendmsg() and linux_recvmsg() work on linux32/amd64.
Change types used in the linux' struct msghdr and struct cmsghdr
definitions to the properly-sized architecture-specific types.
Move ancillary data handler from linux_sendit() to linux_sendmsg().

Submitted by:	dchagin
2008-11-29 17:14:06 +00:00
Bjoern A. Zeeb
759e7c0bbb Regen after jail support was added in r185435. 2008-11-29 14:34:30 +00:00
Bjoern A. Zeeb
413628a7e3 MFp4:
Bring in updated jail support from bz_jail branch.

This enhances the current jail implementation to permit multiple
addresses per jail. In addtion to IPv4, IPv6 is supported as well.
Due to updated checks it is even possible to have jails without
an IP address at all, which basically gives one a chroot with
restricted process view, no networking,..

SCTP support was updated and supports IPv6 in jails as well.

Cpuset support permits jails to be bound to specific processor
sets after creation.

Jails can have an unrestricted (no duplicate protection, etc.) name
in addition to the hostname. The jail name cannot be changed from
within a jail and is considered to be used for management purposes
or as audit-token in the future.

DDB 'show jails' command was added to aid debugging.

Proper compat support permits 32bit jail binaries to be used on 64bit
systems to manage jails. Also backward compatibility was preserved where
possible: for jail v1 syscalls, as well as with user space management
utilities.

Both jail as well as prison version were updated for the new features.
A gap was intentionally left as the intermediate versions had been
used by various patches floating around the last years.

Bump __FreeBSD_version for the afore mentioned and in kernel changes.

Special thanks to:
- Pawel Jakub Dawidek (pjd) for his multi-IPv4 patches
  and Olivier Houchard (cognet) for initial single-IPv6 patches.
- Jeff Roberson (jeff) and Randall Stewart (rrs) for their
  help, ideas and review on cpuset and SCTP support.
- Robert Watson (rwatson) for lots and lots of help, discussions,
  suggestions and review of most of the patch at various stages.
- John Baldwin (jhb) for his help.
- Simon L. Nielsen (simon) as early adopter testing changes
  on cluster machines as well as all the testers and people
  who provided feedback the last months on freebsd-jail and
  other channels.
- My employer, CK Software GmbH, for the support so I could work on this.

Reviewed by:	(see above)
MFC after:	3 months (this is just so that I get the mail)
X-MFC Before:   7.2-RELEASE if possible
2008-11-29 14:32:14 +00:00
Roman Divacky
7356a43c88 Document that all the other commands are either
identical to the FreeBSD ones or rejected by
kern_msgctl().

Found with:	Coverity Prevent(tm)
CID:	3456
Approved by:	kib (mentor)
2008-11-26 16:38:43 +00:00
Konstantin Belousov
b4cf0e62f4 Add sv_flags field to struct sysentvec with intention to provide description
of the ABI of the currently executing image. Change some places to test
the flags instead of explicit comparing with address of known sysentvec
structures to determine ABI features.

Discussed with:	dchagin, imp, jhb, peter
2008-11-22 12:36:15 +00:00
Konstantin Belousov
62162dfc94 In the robust futexes list head, futex_offset shall be signed,
and glibc actually supplies negative offsets. Change l_ulong to l_long.

Submitted by:	dchagin
2008-11-16 15:45:41 +00:00
Peter Wemm
dc5aaa8410 Sigh. Fix a pointer/int compile error. 2008-11-10 23:36:20 +00:00
Peter Wemm
a22600a1dd Fix a signal emulation bug introduced in r163018 (and present in 7.x).
This prevents 32 bit signal handlers from finding out what the faulting
address is.  Both the secret 4th argument and siginfo->si_addr are zero.
2008-11-10 23:26:52 +00:00
Ed Schouten
ebb45b0620 Regenerate system call tables for r184789. 2008-11-09 10:48:06 +00:00
Ed Schouten
a1b5a8955e Mark uname(), getdomainname() and setdomainname() with COMPAT_FREEBSD4.
Looking at our source code history, it seems the uname(),
getdomainname() and setdomainname() system calls got deprecated
somewhere after FreeBSD 1.1, but they have never been phased out
properly. Because we don't have a COMPAT_FREEBSD1, just use
COMPAT_FREEBSD4.

Also fix the Linuxolator to build without the setdomainname() routine by
just making it call userland_sysctl on kern.domainname. Also replace the
setdomainname()'s implementation to use this approach, because we're
duplicating code with sysctl_domainname().

I wasn't able to keep these three routines working in our
COMPAT_FREEBSD32, because that would require yet another keyword for
syscalls.master (COMPAT4+NOPROTO). Because this routine is probably
unused already, this won't be a problem in practice. If it turns out to
be a problem, we'll just restore this functionality.

Reviewed by:	rdivacky, kib
2008-11-09 10:45:13 +00:00
Dag-Erling Smørgrav
faecfd5641 utf-8
MFC after:	3 weeks
2008-11-05 15:08:09 +00:00
John Baldwin
b1b3a8653d Don't leak a reference on the /compat/linux vnode everytime
the linprocfs 'mtab' file is read.

MFC after:	1 month
2008-11-04 18:53:33 +00:00
Doug Rabson
45e6ab7f81 Regen. 2008-11-03 10:39:35 +00:00
Doug Rabson
a9148abd9d Implement support for RPCSEC_GSS authentication to both the NFS client
and server. This replaces the RPC implementation of the NFS client and
server with the newer RPC implementation originally developed
(actually ported from the userland sunrpc code) to support the NFS
Lock Manager.  I have tested this code extensively and I believe it is
stable and that performance is at least equal to the legacy RPC
implementation.

The NFS code currently contains support for both the new RPC
implementation and the older legacy implementation inherited from the
original NFS codebase. The default is to use the new implementation -
add the NFS_LEGACYRPC option to fall back to the old code. When I
merge this support back to RELENG_7, I will probably change this so
that users have to 'opt in' to get the new code.

To use RPCSEC_GSS on either client or server, you must build a kernel
which includes the KGSSAPI option and the crypto device. On the
userland side, you must build at least a new libc, mountd, mount_nfs
and gssd. You must install new versions of /etc/rc.d/gssd and
/etc/rc.d/nfsd and add 'gssd_enable=YES' to /etc/rc.conf.

As long as gssd is running, you should be able to mount an NFS
filesystem from a server that requires RPCSEC_GSS authentication. The
mount itself can happen without any kerberos credentials but all
access to the filesystem will be denied unless the accessing user has
a valid ticket file in the standard place (/tmp/krb5cc_<uid>). There
is currently no support for situations where the ticket file is in a
different place, such as when the user logged in via SSH and has
delegated credentials from that login. This restriction is also
present in Solaris and Linux. In theory, we could improve this in
future, possibly using Brooks Davis' implementation of variant
symlinks.

Supporting RPCSEC_GSS on a server is nearly as simple. You must create
service creds for the server in the form 'nfs/<fqdn>@<REALM>' and
install them in /etc/krb5.keytab. The standard heimdal utility ktutil
makes this fairly easy. After the service creds have been created, you
can add a '-sec=krb5' option to /etc/exports and restart both mountd
and nfsd.

The only other difference an administrator should notice is that nfsd
doesn't fork to create service threads any more. In normal operation,
there will be two nfsd processes, one in userland waiting for TCP
connections and one in the kernel handling requests. The latter
process will create as many kthreads as required - these should be
visible via 'top -H'. The code has some support for varying the number
of service threads according to load but initially at least, nfsd uses
a fixed number of threads according to the value supplied to its '-n'
option.

Sponsored by:	Isilon Systems
MFC after:	1 month
2008-11-03 10:38:00 +00:00
Konstantin Belousov
17b9edd35a The code in linux_proc_exit() contains a race when multiple linux based
processes exits at the same time.  The linux_emuldata structure is freed
but p->p_emuldata is left as a dangling pointer to the just freed memory.

The check for W_EXIT in the loop scanning the child processes isn't safe
since the state of the child process can change right afterwards. Lock
the process and check the W_EXIT before delivering signal.

Submitted by:	tegge
Reviewed by:	davidxu
MFC after:	1 week
2008-10-31 10:38:30 +00:00
Edward Tomasz Napierala
15bc6b2bd8 Introduce accmode_t. This is required for NFSv4 ACLs - it will be neccessary
to add more V* constants, and the variables changed by this patch were often
being assigned to mode_t variables, which is 16 bit.

Approved by:	rwatson (mentor)
2008-10-28 13:44:11 +00:00
Dag-Erling Smørgrav
1ede983cc9 Retire the MALLOC and FREE macros. They are an abomination unto style(9).
MFC after:	3 months
2008-10-23 15:53:51 +00:00
John Baldwin
23aa8eeafc Regen for freebsd32_getdirentries(). 2008-10-22 21:56:44 +00:00
John Baldwin
63f8fe9e8b Split the copyout of *base at the end of getdirentries() out leaving the
rest in kern_getdirentries().  Use kern_getdirentries() to implement
freebsd32_getdirentries().  This fixes a bug where calls to getdirentries()
in 32-bit binaries would trash the 4 bytes after the 'long base' in
userland.

Submitted by:	ups
MFC after:	1 week
2008-10-22 21:55:48 +00:00
Konstantin Belousov
aa8b201112 Correctly fill siginfo for the signals delivered by linux tkill/tgkill.
It is required for async cancellation to work.

Fix PROC_LOCK leak in linux_tgkill when signal delivery attempt is made
to not linux process.

Do not call em_find(p, ...) with p unlocked.

Move common code for linux_tkill() and linux_tgkill() into
linux_do_tkill().

Change linux siginfo_t definition to match actual linux one. Extend
uid fields to 4 bytes from 2. The extension does not change structure
layout and is binary compatible with previous definition, because i386
is little endian, and each uid field has 2 byte padding after it.

Reported by:	Nicolas Joly <njoly pasteur fr>
Submitted by:	dchangin
MFC after:	1 month
2008-10-19 10:02:26 +00:00
Konstantin Belousov
175c6c319b Make robust futexes work on linux32/amd64. Use PTRIN to read
user-mode pointers. Change types used in the structures definitions to
properly-sized architecture-specific types.

Submitted by:	dchagin
MFC after:	1 week
2008-10-14 07:59:23 +00:00
Konstantin Belousov
68da8b22d2 Current linux_fooaffinity() emulation fails, as the FreeBSD affinity
syscalls expect the bitmap size in the range from 32 to 128. Old glibc
always assumed size 1024, while newer glibc searches for approriate
size, starting from 1024 and going up.

For now, use FreeBSD size of cpuset_t for bitmap size parameter and
return EINVAL if length of user space bitmap less than our size of
cpuset_t.

Submitted by:	dchagin
MFC after:	1 week
	[This requires MFC of the actual linux affinity syscalls]
2008-10-04 19:23:30 +00:00
Konstantin Belousov
9a1e630dfd Change the linprocfs <pid>/maps and procfs <pid>/map handlers to use
sbuf instead of doing uiomove. This allows for reads from non-zero
offsets to work.

Patch is forward-ported des@' one, and was adopted to current code
by dchagin@ and me.

Reviewed by:	des (linprocfs part)
PR:	kern/101453
MFC after:	1 week
2008-10-04 14:08:16 +00:00
Marko Zec
8b615593fc Step 1.5 of importing the network stack virtualization infrastructure
from the vimage project, as per plan established at devsummit 08/08:
http://wiki.freebsd.org/Image/Notes200808DevSummit

Introduce INIT_VNET_*() initializer macros, VNET_FOREACH() iterator
macros, and CURVNET_SET() context setting macros, all currently
resolving to NOPs.

Prepare for virtualization of selected SYSCTL objects by introducing a
family of SYSCTL_V_*() macros, currently resolving to their global
counterparts, i.e. SYSCTL_V_INT() == SYSCTL_INT().

Move selected #defines from sys/sys/vimage.h to newly introduced header
files specific to virtualized subsystems (sys/net/vnet.h,
sys/netinet/vinet.h etc.).

All the changes are verified to have zero functional impact at this
point in time by doing MD5 comparision between pre- and post-change
object files(*).

(*) netipsec/keysock.c did not validate depending on compile time options.

Implemented by:	julian, bz, brooks, zec
Reviewed by:	julian, bz, brooks, kris, rwatson, ...
Approved by:	julian (mentor)
Obtained from:	//depot/projects/vimage-commit2/...
X-MFC after:	never
Sponsored by:	NLnet Foundation, The FreeBSD Foundation
2008-10-02 15:37:58 +00:00
Olivier Houchard
3b30175391 Advertise bit 26 as sse2.
Spotted out by:	gahr
2008-09-26 15:29:18 +00:00
John Baldwin
88ac915a9b Add support for installing 32-bit system calls from kernel modules. This
includes syscall32_{de,}register() routines as well as a module handler
and wrapper macros similar to the support for native syscalls in
<sys/sysent.h>.

MFC after:	1 month
2008-09-25 20:50:21 +00:00
John Baldwin
d47faadce3 Sort includes and add multiple include guards. 2008-09-25 20:12:38 +00:00
John Baldwin
74d9b5a551 Regen. 2008-09-25 20:08:36 +00:00
John Baldwin
48a43ae819 Tidy up a few things with syscall generation:
- Instead of using a syscall slot (370) just to get a function prototype
  for lkmressys(), add an explicit function prototype to <sys/sysent.h>.
  This also removes unused special case checks for 'lkmressys' from
  makesyscalls.sh.
- Instead of having magic logic in makesyscalls.sh to only generate a
  function prototype the first time 'lkmnosys' is seen, make 'NODEF'
  always not generate a function prototype and include an explicit
  prototype for 'lkmnosys' in <sys/sysent.h>.
- As a result of the fix in (2), update the LKM syscall entries in
  the freebsd32 syscall table to use 'lkmnosys' rather than 'nosys'.
- Use NOPROTO for the __syscall() entry (198) in the native ABI.  This
  avoids the need for magic logic in makesyscalls.h to only generate
  a function prototype the first time 'nosys' is encountered.
2008-09-25 20:07:42 +00:00
Konstantin Belousov
a8d403e102 Change the static struct sysentvec and struct Elf_Brandinfo initializers
to the C99 style. At least, it is easier to read sysent definitions
that way, and search for the actual instances of sigcode etc.

Explicitely initialize sysentvec.sv_maxssiz that was missed in most
sysvecs.

No objection from:	jhb
MFC after:	1 month
2008-09-24 10:14:37 +00:00
Edward Tomasz Napierala
9545354ed5 Fix usage of mac_vnode_check_open() in linuxulator - last argument
should be VREAD, not FREAD.

Approved by:	rwatson (mentor)
2008-09-22 18:59:24 +00:00
David E. O'Brien
c750e17cf5 Add freebsd32 compat shims for ioctl(2)
CDIOREADTOCHEADER and CDIOREADTOCENTRYS requests.
2008-09-22 16:24:36 +00:00
David E. O'Brien
663c58007e Regenerate for r183270. 2008-09-22 16:09:43 +00:00
David E. O'Brien
ae528485c4 Add freebsd32 compat shims for ioctl(2)
MDIOCATTACH, MDIOCDETACH, MDIOCQUERY, and MDIOCLIST requests.
2008-09-22 16:09:16 +00:00
David E. O'Brien
f1287854fd Regenerate for r183188. 2008-09-19 15:21:40 +00:00
David E. O'Brien
6e6049e9df Add freebsd32 compat shim for nmount(2).
(and quiet some compiler warnings for vfs_donmount)
2008-09-19 15:17:32 +00:00
David E. O'Brien
109ea24cc1 style(9) 2008-09-15 17:39:40 +00:00
David E. O'Brien
7e29bc757e Regenerate for r183042. 2008-09-15 17:39:01 +00:00
David E. O'Brien
f0f53d8f79 Fix bug in r100384 (rev 1.2) in which the 32-bit swapon(2) was made
"obsolete, not included in system", where as the system call does exist.
2008-09-15 17:37:41 +00:00
Ed Schouten
7969b32c44 Allow COMPAT_SVR4 to be built without COMPAT_43.
It seems we only depend on COMPAT_43 to implement the send() and recv()
routines. We can easily implement them using sendto() and recvfrom(),
just like we do inside our very own C library.

I wasn't able to really test it, apart from simple compilation testing.
I've heard rumours that COMPAT_SVR4 is broken inside execve() anyway.
It's still worth to fix this, because I suspect we'll get rid of
COMPAT_43 somewhere in the future...

Reviewed by:	rdivacky
Discussed with:	jhb
2008-09-15 15:09:35 +00:00
Andrew Thompson
8fa962c745 Allow PAGE_SHIFT to already be defined.
Submitted by:	Hans Petter Selasky
2008-09-13 17:34:18 +00:00
Roman Divacky
0d62170990 The ERESTART to EINTR conversion is already done in
kern_select so there is no need to repeat it in
linux_select().

Submitted by:	Dmitry Chagin <dchagin@>
MFC after:	1 week
Approved by:	kib (mentor)
2008-09-11 15:28:28 +00:00
Roman Divacky
2963584278 Getdents requires padding with 2 bytes instead of 1 byte
as with getdents64. The last byte is used for storing
the d_type, add this to plain getdents case where it was
missing before. Also change the code to use strlcpy instead
of plain strcpy. This changes fix the getdents crash we
had reports about (hl2 server etc.)

PR:		kern/117010
MFC after:	1 week
Submitted by:	Dmitry Chagin (dchagin@)
Tested by:	MITA Yoshio <mita ee.t.u-tokyo.ac jp>
Approved by:	kib (mentor)
2008-09-09 16:00:17 +00:00
Konstantin Belousov
745aaef5b5 Remove superfluous copyin() of args, structures are already in kernel space.
Submitted by:	dchagin
MFC after:	1 week
2008-09-09 13:01:14 +00:00
Attilio Rao
0359a12ead Decontextualize the couplet VOP_GETATTR / VOP_SETATTR as the passed thread
was always curthread and totally unuseful.

Tested by: Giovanni Trematerra <giovanni dot trematerra at gmail dot com>
2008-08-28 15:23:18 +00:00
Julian Elischer
576c43c844 We left out V_static_len from ip_fw2.c
(also a whitespace diff that i'd rahter fix her ethan break in the
vimage branch.)
2008-08-25 05:38:18 +00:00
Julian Elischer
1d89fc4ebe All opt_x.h includes go at the top of other includes. 2008-08-25 04:55:29 +00:00
Robert Watson
5ae504055a Regenerate following r182123. 2008-08-24 21:23:08 +00:00
Robert Watson
e484af13ed When MPSAFE ttys were merged, a new BSM audit event identifier was
allocated for posix_openpt(2).  Unfortunately, that identifier
conflicts with other events already allocated to other systems in
OpenBSM.  Assign a new globally unique identifier and conform
better to the AUE_ event naming scheme.

This is a stopgap until a new OpenBSM import is done with the
correct identifier, so we'll maintain this as a local diff in svn
until then.

Discussed with:	ed
Obtained from:	TrustedBSD Project
2008-08-24 21:20:35 +00:00
David E. O'Brien
35c316caaf Add comments on NOARGS, NODEF, and NOPROTO. 2008-08-21 22:57:31 +00:00
Ed Schouten
18cf135421 Update system call tables.
The previous commit also included changes to all the system call lists,
but it is a tradition to update these lists in a second commit, so rerun
make sysent to update the $FreeBSD$ tags inside these files to refer to
the latest version of syscalls.master.

Requested by:	rwatson
2008-08-20 08:39:10 +00:00
Ed Schouten
bc093719ca Integrate the new MPSAFE TTY layer to the FreeBSD operating system.
The last half year I've been working on a replacement TTY layer for the
FreeBSD kernel. The new TTY layer was designed to improve the following:

- Improved driver model:

  The old TTY layer has a driver model that is not abstract enough to
  make it friendly to use. A good example is the output path, where the
  device drivers directly access the output buffers. This means that an
  in-kernel PPP implementation must always convert network buffers into
  TTY buffers.

  If a PPP implementation would be built on top of the new TTY layer
  (still needs a hooks layer, though), it would allow the PPP
  implementation to directly hand the data to the TTY driver.

- Improved hotplugging:

  With the old TTY layer, it isn't entirely safe to destroy TTY's from
  the system. This implementation has a two-step destructing design,
  where the driver first abandons the TTY. After all threads have left
  the TTY, the TTY layer calls a routine in the driver, which can be
  used to free resources (unit numbers, etc).

  The pts(4) driver also implements this feature, which means
  posix_openpt() will now return PTY's that are created on the fly.

- Improved performance:

  One of the major improvements is the per-TTY mutex, which is expected
  to improve scalability when compared to the old Giant locking.
  Another change is the unbuffered copying to userspace, which is both
  used on TTY device nodes and PTY masters.

Upgrading should be quite straightforward. Unlike previous versions,
existing kernel configuration files do not need to be changed, except
when they reference device drivers that are listed in UPDATING.

Obtained from:		//depot/projects/mpsafetty/...
Approved by:		philip (ex-mentor)
Discussed:		on the lists, at BSDCan, at the DevSummit
Sponsored by:		Snow B.V., the Netherlands
dcons(4) fixed by:	kan
2008-08-20 08:31:58 +00:00
Bjoern A. Zeeb
603724d3ab Commit step 1 of the vimage project, (network stack)
virtualization work done by Marko Zec (zec@).

This is the first in a series of commits over the course
of the next few weeks.

Mark all uses of global variables to be virtualized
with a V_ prefix.
Use macros to map them back to their global names for
now, so this is a NOP change only.

We hope to have caught at least 85-90% of what is needed
so we do not invalidate a lot of outstanding patches again.

Obtained from:	//depot/projects/vimage-commit2/...
Reviewed by:	brooks, des, ed, mav, julian,
		jamie, kris, rwatson, zec, ...
		(various people I forgot, different versions)
		md5 (with a bit of help)
Sponsored by:	NLnet Foundation, The FreeBSD Foundation
X-MFC after:	never
V_Commit_Message_Reviewed_By:	more people than the patch
2008-08-17 23:27:27 +00:00
Ed Schouten
b377be43a5 Add TIOCPKT and TIOCSPTLCK to the Linuxolator.
We're very lucky, because the flags used by our TIOCPKT implementation
are the same as flags used by Linux. We can safely enable TIOCPKT,
assuming EXTPROC is not used.

TIOCSPTLCK is used by unlockpt(). Because we don't need unlockpt() in
our implementation, make this ioctl a no-op.

Approved by:	philip (mentor, implicit), rdivacky
Obtained from:	P4 (//depot/projects/mpsafetty/...)
2008-07-23 17:47:44 +00:00
Roman Divacky
0864e2a4f1 Fix linux_alarm, the linux behaviour is to limit the
secs to INT_MAX when the passed in parameter is bigger
than INT_MAX.

Submitted by:	Dmitry Chagin <chagin.dmitry gmail com>
Approved by:	kib (mentor)
2008-07-23 17:19:02 +00:00
Weongyo Jeong
138ddff935 when NDIS framework try to query/set informations NDIS drivers can
return NDIS_STATUS_PENDING.  In this case, it's waiting for 5 secs to
get the response from drivers now.  However, some NDIS drivers can send
the response before NDIS framework gets ready to receive it so we might
always be blocked for 5 secs in current implementation.  NDIS framework
should reset the event before calling NDIS driver's callback not after.

MFC after:	1 month
2008-07-23 10:49:27 +00:00
Brooks Davis
e44f0b2a63 style(9): put parentheses around return values. 2008-07-10 19:54:34 +00:00
Brooks Davis
774b72e12e Regen 2008-07-10 17:46:58 +00:00
Brooks Davis
a8c6d6d0ba id_t is a 64-bit integer and thus is passed as two arguments like off_t is.
As a result, those arguments must be recombined before calling the real
syscal implementation.  This change fixes 32-bit compatibility for
cpuset_getid(), cpuset_setid(), cpuset_getaffinity(), and
cpuset_setaffinity().
2008-07-10 17:45:57 +00:00
Robert Watson
4f7d1876d5 Introduce a new lock, hostname_mtx, and use it to synchronize access
to global hostname and domainname variables.  Where necessary, copy
to or from a stack-local buffer before performing copyin() or
copyout().  A few uses, such as in cd9660 and daemon_saver, remain
under-synchronized and will require further updates.

Correct a bug in which a failed copyin() of domainname would leave
domainname potentially corrupted.

MFC after:	3 weeks
2008-07-05 13:10:10 +00:00
Coleman Kane
38ad9366dc Silence warning about missing IoGetDeviceObjectPointer by implementing
a simple stub that always returns STATUS_SUCCESS.

Submitted by:	Paul B. Mahol <onemda@gmail.com>
Reviewed by:	thompsa
MFC after:	1 week
2008-06-15 13:37:29 +00:00
Wojciech A. Koszek
53a609f064 Remove obselete PECOFF image activator support.
PRs assigned at the time of removal:    kern/80742

Discussed on:   freebsd-current (silence), IRC
Tested by:      make universe
Approved by:    cognet (mentor)
2008-06-14 12:51:44 +00:00
Weongyo Jeong
1f22fabdfb fix a page fault that it occurred during ifp is NULL. This bug happens
when NDIS driver's initialization is failed and NDIS driver's trying to
call NdisWriteErrorLogEntry().
2008-06-11 07:55:07 +00:00
Roman Divacky
2e1a489300 d_ino member of linux_dirent structure should be unsigned long.
Submitted by:	Chagin Dmitry <chagin.dmitry@gmail.com>
Approved by:	kib (mentor)
2008-06-08 11:09:25 +00:00
Roman Divacky
a47444d525 Switch to emulating Linux 2.6 on default.
Approved by:	kib (mentor)
2008-06-03 17:50:13 +00:00
Ed Schouten
a147e6cadf Push down the major/minor conversion for pts/%u to improve consistency.
In the mpsafetty branch, Linux sshd seems to work properly inside a
jail. Some small modifications had to be made to the Linux compatibility
layer.

The Linux PTY routines always expect the device major number to be 136
or higher. Our code always set the major/minor number pair to 136:0.
This makes routines like ttyname() and ptsname() fail, because we'll end
up having ambiguous device numbers.

The conversion was not performed on all *stat() routines, which meant in
some cases the numbers didn't get transformed. By pushing the conversion
into linux_driver_get_major_minor(), the transformation will take place
on all calls.

Approved by:	philip (mentor), rdivacky
2008-06-02 08:40:06 +00:00
Weongyo Jeong
32e9c9dc71 Fix a panic that a priority value which is passed to cv_broadcastpri(9)
can be < 0.  We don't ignore a `increment' argument but at least we keep
a priority value of NDIS threads over PRI_MIN_KERN.

Reviewed by:	thompsa
2008-05-30 06:31:55 +00:00
Weongyo Jeong
d9585f801b Fix a panic when it occurred during initializing the ndis driver because
it try to read network address through ifnet structure which is NULL
until the ndis driver's initialization is finished.

Reviewed by:	thompsa
2008-05-15 04:29:28 +00:00
Roman Divacky
4732e446fb Implement robust futexes. Most of the code is modelled after
what Linux does. This is because robust futexes are mostly
userspace thing which we cannot alter. Two syscalls maintain
pointer to userspace list and when process exits a routine
walks this list waking up processes sleeping on futexes
from that list.

Reviewed by:	kib (mentor)
MFC after:	1 month
2008-05-13 20:01:27 +00:00
Roman Divacky
a6d043e30d Implement linux_truncate64() syscall.
Tested by:	Aline de Freitas <aline@riseup.net>
Approved by:	kib (mentor)
2008-04-23 15:56:33 +00:00
Roman Divacky
cabce2bf19 The vmspace->vm_daddr is constant until freed, there is no need
to hold lock while accessing it.

Approved by:	kib (mentor)
2008-04-21 21:24:08 +00:00
Roman Divacky
872cbe6466 Remove using magic value of -1 to distinguish between linux_open()
and linux_openat(). Instead just pass AT_FDCWD into linux_common_open()
for the linux_open() case. This prevents passing -1 as a dirfd to
openat() from succeeding which is wrong.

Suggested by:	rwatson, kib
Approved by:	kib (mentor)
2008-04-09 16:42:50 +00:00
Konstantin Belousov
48b05c3f82 Implement the linux syscalls
openat, mkdirat, mknodat, fchownat, futimesat, fstatat, unlinkat,
    renameat, linkat, symlinkat, readlinkat, fchmodat, faccessat.

Submitted by:	rdivacky
Sponsored by:	Google Summer of Code 2007
Tested by:	pho
2008-04-08 09:45:49 +00:00
Konstantin Belousov
f2296b585e Regen 2008-03-31 12:12:27 +00:00
Konstantin Belousov
4f1e7213d4 Add the freebsd32 compatibility shims for the *at() syscalls.
Reviewed by:	rwatson, rdivacky
Tested by:	pho
2008-03-31 12:08:30 +00:00
Konstantin Belousov
57b4252e45 Add the support for the AT_FDCWD and fd-relative name lookups to the
namei(9).

Based on the submission by rdivacky,
	sponsored by Google Summer of Code 2007
Reviewed by:	rwatson, rdivacky
Tested by:	pho
2008-03-31 12:01:21 +00:00
John Birrell
8f0cc58815 Remove files that have been repo copied to their new location
in cddl-specific parts of the source tree.
2008-03-28 00:08:47 +00:00
Doug Rabson
a7ac0db6cb Regen. 2008-03-26 15:24:02 +00:00
Doug Rabson
dfdcada31e Add the new kernel-mode NFS Lock Manager. To use it instead of the
user-mode lock manager, build a kernel with the NFSLOCKD option and
add '-k' to 'rpc_lockd_flags' in rc.conf.

Highlights include:

* Thread-safe kernel RPC client - many threads can use the same RPC
  client handle safely with replies being de-multiplexed at the socket
  upcall (typically driven directly by the NIC interrupt) and handed
  off to whichever thread matches the reply. For UDP sockets, many RPC
  clients can share the same socket. This allows the use of a single
  privileged UDP port number to talk to an arbitrary number of remote
  hosts.

* Single-threaded kernel RPC server. Adding support for multi-threaded
  server would be relatively straightforward and would follow
  approximately the Solaris KPI. A single thread should be sufficient
  for the NLM since it should rarely block in normal operation.

* Kernel mode NLM server supporting cancel requests and granted
  callbacks. I've tested the NLM server reasonably extensively - it
  passes both my own tests and the NFS Connectathon locking tests
  running on Solaris, Mac OS X and Ubuntu Linux.

* Userland NLM client supported. While the NLM server doesn't have
  support for the local NFS client's locking needs, it does have to
  field async replies and granted callbacks from remote NLMs that the
  local client has contacted. We relay these replies to the userland
  rpc.lockd over a local domain RPC socket.

* Robust deadlock detection for the local lock manager. In particular
  it will detect deadlocks caused by a lock request that covers more
  than one blocking request. As required by the NLM protocol, all
  deadlock detection happens synchronously - a user is guaranteed that
  if a lock request isn't rejected immediately, the lock will
  eventually be granted. The old system allowed for a 'deferred
  deadlock' condition where a blocked lock request could wake up and
  find that some other deadlock-causing lock owner had beaten them to
  the lock.

* Since both local and remote locks are managed by the same kernel
  locking code, local and remote processes can safely use file locks
  for mutual exclusion. Local processes have no fairness advantage
  compared to remote processes when contending to lock a region that
  has just been unlocked - the local lock manager enforces a strict
  first-come first-served model for both local and remote lockers.

Sponsored by:	Isilon Systems
PR:		95247 107555 115524 116679
MFC after:	2 weeks
2008-03-26 15:23:12 +00:00
John Baldwin
5c63b21a1a Regen. 2008-03-25 19:35:34 +00:00
John Baldwin
30c6422a8a Add entries for the cpuset-related system calls. The existing system calls
can be used on little endian systems.

Pointy hat to:	jeff
2008-03-25 19:34:47 +00:00
Ruslan Ermilov
d7a38db650 Fix build.
Reported by:	ache, tinderbox
2008-03-25 13:20:52 +00:00
Roman Divacky
6af821237d o Add stub support for some new futex operations,
so the annoying message is not printed.

	o	Don't warn about FUTEX_FD not being implemented
		and return ENOSYS instead of 0 (eg. success).

	o	Clear FUTEX_PRIVATE_FLAG as we actually implement
		only private futexes so there is no reason to
		return ENOSYS when app asks for a private futex.
		We don't reject shared futexes because they worked
		just fine with our implementation so far.

Approved by:	kib (mentor)
Tested by:	bsam
MFC after:	1 week
2008-03-20 17:03:55 +00:00
Antoine Brodin
afe5acff1b Simplify fcntl(SVR4_F_DUP2FD) code now that FreeBSD has F_DUP2FD.
Approved by:	rwatson (mentor)
2008-03-17 18:27:28 +00:00
Roman Divacky
5dfb688191 Implement sched_setaffinity and get_setaffinity using
real cpu affinity setting primitives.

Reviewed by:	jeff
Approved by:	kib (mentor)
2008-03-16 16:27:44 +00:00
Jeff Roberson
66257bc8d9 - The P_SA flag has been removed. Don't reference it in a KASSERT. 2008-03-12 22:17:06 +00:00
Jeff Roberson
6617724c5f Remove kernel support for M:N threading.
While the KSE project was quite successful in bringing threading to
FreeBSD, the M:N approach taken by the kse library was never developed
to its full potential.  Backwards compatibility will be provided via
libmap.conf for dynamically linked binaries and static binaries will
be broken.
2008-03-12 10:12:01 +00:00
Konstantin Belousov
a0b0d286bc Return ENOSYS instead of 0 for the unknown futex operations.
Submitted by: rdivacky
Reported and tested by: Gary Stanley <gary velocity-servers net>
2008-03-02 14:00:50 +00:00
Konstantin Belousov
cbd2c621f8 Sanitize arguments to linux_mremap().
Check that only MREMAP_FIXED and MREMAP_MAYMOVE flags are specified.
Check for the page alignment of the addr argument.

Submitted by:	rdivacky
MFC after:	1 week
2008-02-22 11:47:56 +00:00
Ruslan Ermilov
b95bd24d29 Regenerate for readlink(2). 2008-02-12 20:11:54 +00:00
Ruslan Ermilov
5f56182b6f Change readlink(2)'s return type and type of the last argument
to match POSIX.

Prodded by:	Alexey Lyashkov
2008-02-12 20:09:04 +00:00
Poul-Henning Kamp
cf827063a9 Give MEXTADD() another argument to make both void pointers to the
free function controlable, instead of passing the KVA of the buffer
storage as the first argument.

Fix all conventional users of the API to pass the KVA of the buffer
as the first argument, to make this a no-op commit.

Likely break the only non-convetional user of the API, after informing
the relevant committer.

Update the mbuf(9) manual page, which was already out of sync on
this point.

Bump __FreeBSD_version to 800016 as there is no way to tell how
many arguments a CPP macro needs any other way.

This paves the way for giving sendfile(9) a way to wait for the
passed storage to have been accessed before returning.

This does not affect the memory layout or size of mbufs.

Parental oversight by:	sam and rwatson.

No MFC is anticipated.
2008-02-01 19:36:27 +00:00
Pawel Jakub Dawidek
44ce1efd91 Change type of kmem_used() and kmem_size() functions to uint64_t, so it
doesn't overflow in arc.c in this check:

	if (kmem_used() > (kmem_size() * 4) / 5)
		return (1);

With this bug ZFS almost doesn't cache.

Only 32bit machines are affected that have vm.kmem_size set to values >=1GB.

Reported by:	David Taylor <davidt@yadt.co.uk>
2008-01-24 11:21:54 +00:00
Robert Watson
20c6fe828a Regenerate. 2008-01-20 23:44:24 +00:00
Robert Watson
6c902059f2 Use audit events AUE_SHMOPEN and AUE_SHMUNLINK with new system calls
shm_open() and shm_unlink().  More auditing will need to be done for
these calls to capture arguments properly.
2008-01-20 23:43:06 +00:00
Attilio Rao
22db15c06f VOP_LOCK1() (and so VOP_LOCK()) and VOP_UNLOCK() are only used in
conjuction with 'thread' argument passing which is always curthread.
Remove the unuseful extra-argument and pass explicitly curthread to lower
layer functions, when necessary.

KPI results broken by this change, which should affect several ports, so
version bumping and manpage update will be further committed.

Tested by: kris, pho, Diego Sardina <siarodx at gmail dot com>
2008-01-13 14:44:15 +00:00
Attilio Rao
cb05b60a89 vn_lock() is currently only used with the 'curthread' passed as argument.
Remove this argument and pass curthread directly to underlying
VOP_LOCK1() VFS method. This modify makes the code cleaner and in
particular remove an annoying dependence helping next lockmgr() cleanup.
KPI results, obviously, changed.

Manpage and FreeBSD_version will be updated through further commits.

As a side note, would be valuable to say that next commits will address
a similar cleanup about VFS methods, in particular vop_lock1 and
vop_unlock.

Tested by:	Diego Sardina <siarodx at gmail dot com>,
		Andrea Di Pasquale <whyx dot it at gmail dot com>
2008-01-10 01:10:58 +00:00
John Baldwin
4ad6d200d6 Regen for shm_open(2) and shm_unlink(2). 2008-01-08 22:01:26 +00:00
John Baldwin
8e38aeff17 Add a new file descriptor type for IPC shared memory objects and use it to
implement shm_open(2) and shm_unlink(2) in the kernel:
- Each shared memory file descriptor is associated with a swap-backed vm
  object which provides the backing store.  Each descriptor starts off with
  a size of zero, but the size can be altered via ftruncate(2).  The shared
  memory file descriptors also support fstat(2).  read(2), write(2),
  ioctl(2), select(2), poll(2), and kevent(2) are not supported on shared
  memory file descriptors.
- shm_open(2) and shm_unlink(2) are now implemented as system calls that
  manage shared memory file descriptors.  The virtual namespace that maps
  pathnames to shared memory file descriptors is implemented as a hash
  table where the hash key is generated via the 32-bit Fowler/Noll/Vo hash
  of the pathname.
- As an extension, the constant 'SHM_ANON' may be specified in place of the
  path argument to shm_open(2).  In this case, an unnamed shared memory
  file descriptor will be created similar to the IPC_PRIVATE key for
  shmget(2).  Note that the shared memory object can still be shared among
  processes by sharing the file descriptor via fork(2) or sendmsg(2), but
  it is unnamed.  This effectively serves to implement the getmemfd() idea
  bandied about the lists several times over the years.
- The backing store for shared memory file descriptors are garbage
  collected when they are not referenced by any open file descriptors or
  the shm_open(2) virtual namespace.

Submitted by:	dillon, peter (previous versions)
Submitted by:	rwatson (I based this on his version)
Reviewed by:	alc (suggested converting getmemfd() to shm_open())
2008-01-08 21:58:16 +00:00
Konstantin Belousov
d075105da0 After applying LCONVPATH() to the path, do use the converted path
instead of original user-mode string in the linux_stat() and
linux_lstat() syscalls.

Tested by:	Peter Holm
MFC after:	3 days
2008-01-05 12:36:35 +00:00
Jeff Roberson
397c19d175 Remove explicit locking of struct file.
- Introduce a finit() which is used to initailize the fields of struct file
   in such a way that the ops vector is only valid after the data, type,
   and flags are valid.
 - Protect f_flag and f_count with atomic operations.
 - Remove the global list of all files and associated accounting.
 - Rewrite the unp garbage collection such that it no longer requires
   the global list of all files and instead uses a list of all unp sockets.
 - Mark sockets in the accept queue so we don't incorrectly gc them.

Tested by:	kris, pho
2007-12-30 01:42:15 +00:00
Konstantin Belousov
93eba2d50d Plug the leaks in the present (hopefully, soon to be replaced)
implementation of the linux_openat() for the quick MFC.

Reported and tested by: Peter Holm
MFC after:      3 days
2007-12-29 14:28:01 +00:00
Konstantin Belousov
15b78ac5d1 Apply the LCONVPATH() to the (old) linux_stat() and linux_lstat() syscalls.
Without it, code has two problems:
- behaviour of the old and new [l]stat are different with regard of
  the /compat/linux
- directly accessing the userspace data from the kernel asks for
  the panics.

Reported and tested by:	Peter Holm
Reviewed by:	rdivacky
MFC after:	3 days
2007-12-29 14:25:29 +00:00
Robert Watson
3de213cc00 Add a new 'why' argument to kdb_enter(), and a set of constants to use
for that argument.  This will allow DDB to detect the broad category of
reason why the debugger has been entered, which it can use for the
purposes of deciding which DDB script to run.

Assign approximate why values to all current consumers of the
kdb_enter() interface.
2007-12-25 17:52:02 +00:00
John Baldwin
0a63574164 Bah, remove last vestiges of some statfs conversion fixes that aren't quite
ready for CVS yet that snuck into 1.68.

Pointy hat to:	jhb
2007-12-10 19:42:23 +00:00
Scott Long
d637500d06 Grrr, remove an unused variable missed in the last commit. 2007-12-08 01:41:31 +00:00
Scott Long
7815c9e2db Don't expect a return value from statfs_scale_blocks(). 2007-12-07 22:32:09 +00:00
John Baldwin
8120bb7e3a Regen. 2007-12-06 23:37:26 +00:00
John Baldwin
695e8d536c Add freebsd32 compat wrappers for msgctl() and __semctl() using
kern_msgctl() and kern_semctl().

MFC after:	1 week
2007-12-06 23:36:57 +00:00
John Baldwin
3c39e0d8d4 Add freebsd32 compat wrappers for msgctl() and _semctl() using
kern_msgctl() and kern_semctl().

MFC after:	1 week
2007-12-06 23:35:29 +00:00
John Baldwin
d43c6fa4fe Move 32-bit SYSV IPC structure definitions into freebsd32_ipc.h.
MFC after:	1 week
2007-12-06 23:23:16 +00:00
John Baldwin
74427aa423 Move several data structure definitions out of freebsd32_misc.c and into
freebsd32.h instead.

MFC after:	1 week
2007-12-06 23:11:27 +00:00
Jung-uk Kim
959a913b87 Remove redundant checks for msgsnd(3) and msgrcv(3).
COMPAT_IA32 (implicitly) requires SYSVSEM, SYSVSHM and SYSVMSG in kernel.

Pointed out by:	jhb
2007-12-04 20:25:41 +00:00
Andrew Thompson
ac740aebcf Implement functions required by some ndis drivers.
NdisIMCopySendPerPacketInfo [1]
 KeQuerySystemTime [1]
 KeTickCount [1]
 strncat [1]
 KeBugCheckEx

Submitted by:	Marcin Simonides [1]
2007-12-03 23:43:58 +00:00
Andrew Thompson
e880149eb9 Correct the calculation for the number of 100ns intervals since
January 1, 1601. The 1601 - 1970 period was in seconds rather than 100ns
units.

Remove duplication by having NdisGetCurrentSystemTime call ntoskrnl_time.
2007-12-02 08:54:50 +00:00
Andrew Thompson
f3ad39ccf5 Correct the nwbx_ies field type in struct ndis_wlan_bssid_ex.
PR:		kern/118369
Submitted by:	Weongyo Jeong
2007-12-02 04:04:42 +00:00
Peter Wemm
7628402b07 Move the shared cp_time array (counts %sys, %user, %idle etc) to the
per-cpu area.  cp_time[] goes away and a new function creates a merged
cp_time-like array for things like linprocfs, sysctl etc.  The
atomic ops for updating cp_time[] in statclock go away, and the scope
of the thread lock is reduced.

sysctl kern.cp_time returns a backwards compatible cp_time[] array.
A new kern.cp_times sysctl returns the individual per-cpu stats.

I have pending changes to make top and vmstat optionally show per-cpu
stats.

I'm very aware that there are something like 5 or 6 other versions "out
there" for doing this - but none were handy when I needed them.

I did merge my changes with John Baldwin's, and ended up replacing a
few chunks of my stuff with his, and stealing some other code.

Reviewed by:  jhb
Partly obtained from:  jhb
2007-11-29 06:34:30 +00:00
John Birrell
35a04710d7 Remove some compatibility stuff that we now get from the Solaris header. 2007-11-29 00:15:08 +00:00
John Birrell
57438287ab Add more OpenSolaris compatibility headers. 2007-11-28 21:50:40 +00:00
John Birrell
eca148b637 Remove an extern that is defined elsewhere. 2007-11-28 21:50:05 +00:00
John Birrell
edadde229a Add compatibility cruft moved from under _SOLARIS_C_SOURCE in sys/types.h 2007-11-28 21:49:16 +00:00
John Birrell
35ba7f225f Remove a typedef which was just a hack to avoid including vmem.h.
That typedef breaks other Solaris code.
2007-11-28 21:48:25 +00:00
John Birrell
773f4e3849 Add a missing volatile so that the code compiles cleanly. 2007-11-28 21:47:09 +00:00
John Birrell
4fc8feafc7 Rename the definition of lbolt to LBOLT to avoid a clash with a global
variable in FreeBSD. Until now lbolt in sys/proc.h has been #ifdef'ed
out based on _SOLARIS_C_SOURCE, but that is going away now.
2007-11-28 21:44:17 +00:00
Konstantin Belousov
d60f0a3d6a Implement LINUX_SIOCGIFCOUNT and LINUX_SIOCGIFINDEX/LINUX_SIOGIFINDEX.
LINUX_SIOCGIFCOUNT just returns 0 since it is not implemented in the
Linux 2.6.16.

LINUX_SIOCGIFINDEX/LINUX_SIOGIFINDEX are mapped to the FreeBSD native
SIOCGIFINDEX.

Tested by:	Peter Kostouros <kpeter@melbpc.org.au>
Reviewed by:	brooks, rpaulo (on net@)
Submitted by:	rdivacky
MFC after:	1 week
2007-11-07 16:42:52 +00:00
Pawel Jakub Dawidek
171eb887e9 Remove "zfs:" prefix from lock and condvar names and also skip non-letter
characters (mostly "&"). Because top(1) shows only first six characters of
wait channel, without this change we saw only one meaningful character.

Requested by:	kris & others
MFC after:	1 week
2007-11-05 18:40:55 +00:00
Konstantin Belousov
89b57fcf01 Fix for the panic("vm_thread_new: kstack allocation failed") and
silent NULL pointer dereference in the i386 and sparc64 pmap_pinit()
when the kmem_alloc_nofault() failed to allocate address space. Both
functions now return error instead of panicing or dereferencing NULL.

As consequence, vmspace_exec() and vmspace_unshare() returns the errno
int. struct vmspace arg was added to vm_forkproc() to avoid dealing
with failed allocation when most of the fork1() job is already done.

The kernel stack for the thread is now set up in the thread_alloc(),
that itself may return NULL. Also, allocation of the first process
thread is performed in the fork1() to properly deal with stack
allocation failure. proc_linkup() is separated into proc_linkup()
called from fork1(), and proc_linkup0(), that is used to set up the
kernel process (was known as swapper).

In collaboration with:	Peter Holm
Reviewed by:	jhb
2007-11-05 11:36:16 +00:00
Pawel Jakub Dawidek
4f2398ea17 - Move crfree() outside MNT_ILOCK()/MNT_IUNLOCK() to eliminate a LOR:
1st 0xc4cea568 struct mount mtx (struct mount mtx) @ /usr/src/sys/modules/zfs/../../compat/opensolaris/kern/opensolaris_vfs.c:209
  2nd 0xc3ee9010 sleep mtxpool (sleep mtxpool) @ /usr/src/sys/kern/kern_resource.c:1266
- Move crdup() outside MNT_ILOCK()/MNT_IUNLOCK(), as it can sleep.

Reported by:	Olli Hauer <ohauer@gmx.de>
MFC after:	3 days
2007-11-01 08:58:29 +00:00
Robert Watson
30d239bc4c Merge first in a series of TrustedBSD MAC Framework KPI changes
from Mac OS X Leopard--rationalize naming for entry points to
the following general forms:

  mac_<object>_<method/action>
  mac_<object>_check_<method/action>

The previous naming scheme was inconsistent and mostly
reversed from the new scheme.  Also, make object types more
consistent and remove spaces from object types that contain
multiple parts ("posix_sem" -> "posixsem") to make mechanical
parsing easier.  Introduce a new "netinet" object type for
certain IPv4/IPv6-related methods.  Also simplify, slightly,
some entry point names.

All MAC policy modules will need to be recompiled, and modules
not updates as part of this commit will need to be modified to
conform to the new KPI.

Sponsored by:	SPARTA (original patches against Mac OS X)
Obtained from:	TrustedBSD Project, Apple Computer
2007-10-24 19:04:04 +00:00
Julian Elischer
3745c395ec Rename the kthread_xxx (e.g. kthread_create()) calls
to kproc_xxx as they actually make whole processes.
Thos makes way for us to add REAL kthread_create() and friends
that actually make theads. it turns out that most of these
calls actually end up being moved back to the thread version
when it's added. but we need to make this cosmetic change first.

I'd LOVE to do this rename in 7.0  so that we can eventually MFC the
new kthread_xxx() calls.
2007-10-20 23:23:23 +00:00
Kevin Lo
976b010645 Spelling fix for interupt -> interrupt 2007-10-12 06:03:46 +00:00
John Baldwin
977b6507cb Allow the ia32 resource limits (compat.ia32.max{dsiz,ssiz,vmem} to be
set via loader tunables.  They are already tunable via sysctl.

MFC after:	1 week
Approved by:	re (kensmith)
2007-09-24 20:49:39 +00:00
David Malone
3ab8526963 The kernel version of Linux statfs64 is actually supposed to take
3 arguments, but we had forgotten the second argument. Also make the
Linux statfs64 struct depend on the architecture because it has an
extra 4 bytes padding on amd64 compared to i386.

The three argument fix is from David Taylor, the struct statfs64
stuff is my fault. With this patch I can install i386 Linux matlab
on an amd64 machine.

Submitted by: David Taylor <davidt_at_yadt.co.uk>
Approved by: re (kensmith)
2007-09-18 19:50:33 +00:00
John Baldwin
cc479dda4a Rework the routines to convert a 5.x+ statfs structure (with fixed-size
64-bit counters) to a 4.x statfs structure (with long-sized counters).
- For block counters, we scale up the block size sufficiently large so
  that the resulting block counts fit into a the long-sized (long for the
  ABI, so 32-bit in freebsd32) counters.  In 4.x the NFS client's statfs
  VOP did this already.  This can lie about the block size to 4.x binaries,
  but it presents a more accurate picture of the ratios of free and
  available space.
- For non-block counters, fix the freebsd32 stats converter to cap the
  values at INT32_MAX rather than losing the upper 32-bits to match the
  behavior of the 4.x statfs conversion routine in vfs_syscalls.c

Approved by:	re (kensmith)
2007-08-28 20:28:12 +00:00
Konstantin Belousov
b6e645c90f Implement fake linux sched_getaffinity() syscall to enable java to work
with Linux 2.6 emulation. This shall be reimplemented once FreeBSD gets
native scheduler affinity syscalls.

Submitted by:	rdivacky
Reviewed by:	jkim
Sponsored by:	Google Summer of Code 2007
Approved by:	re (kensmith)
2007-08-28 12:26:35 +00:00
Pawel Jakub Dawidek
70eaa4219c Some ZFS threads needs stack larger than the default 8kB, so use 16kB of
alternate stack if the default is smaller than 16kB.

Approved by:	re (rwatson)
2007-08-16 20:33:20 +00:00
David Xu
6ec46f7aa8 Regenerate.
Approved by: re(kensmith)
2007-08-16 05:32:26 +00:00
David Xu
81ca5b4257 Add thr_kill2 compat32 syscall.
Submitted by: Tijl Coosemans tijl at ulyssis dot org
Approved by: re (kensmith)
2007-08-16 05:30:04 +00:00
Robert Watson
0bf686c125 Remove the now-unused NET_{LOCK,UNLOCK,ASSERT}_GIANT() macros, which
previously conditionally acquired Giant based on debug.mpsafenet.  As that
has now been removed, they are no longer required.  Removing them
significantly simplifies error-handling in the socket layer, eliminated
quite a bit of unwinding of locking in error cases.

While here clean up the now unneeded opt_net.h, which previously was used
for the NET_WITH_GIANT kernel option.  Clean up some related gotos for
consistency.

Reviewed by:	bz, csjp
Tested by:	kris
Approved by:	re (kensmith)
2007-08-06 14:26:03 +00:00
Andrew Thompson
a4e531102e ndis will signal the kthread to exit and then sleep on the proc pointer to
be woken up by kthread_exit. This is racey and in some cases the kthread will
exit before ndis gets around to sleep so it will be stuck indefinitely. This
change reuses the kq_exit variable to indicate that the thread has gone and
will loop on tsleep with a timeout waiting for it. If the kthread has already
exited then it will not sleep at all.

Approved by:	re (rwatson)
2007-07-22 20:53:28 +00:00
John Baldwin
59d8f3ff08 Fix a couple of issues with the stack limit for 32-bit processes on 64-bit
kernels exposed by the recent fixes to resource limits for 32-bit processes
on 64-bit kernels:
- Let ABIs expose their maximum stack size via a new pointer in sysentvec
  and use that in preference to maxssiz during exec() rather than always
  using maxssiz for all processses.
- Apply the ABI's limit fixup to the previous stack size when adjusting
  RLIMIT_STACK to determine if the existing mapping for the stack needs to
  be grown or shrunk (as well as how much it should be grown or shrunk).

Approved by:	re (kensmith)
2007-07-12 18:01:31 +00:00
Peter Wemm
b77acb8748 Quiet warnings. I believe gcc is incorrect about these.
Approved by:  re (rwatson)
2007-07-05 07:38:17 +00:00
Peter Wemm
79d5bdcca5 Don't add the 'pad' argument to the mmap/truncate/etc syscalls.
Submitted by: kensmith
Approved by: re (kensmith)
2007-07-04 23:06:43 +00:00
Peter Wemm
5aa69f9c72 Add compat6 wrapper code for mmap/lseek/pread/pwrite/truncate/ftruncate.
Approved by:  re (kensmith)
2007-07-04 23:04:41 +00:00
Peter Wemm
486abf939c Regenerate after mmap/lseek/etc syscall changes
Approved by:  re (kensmith)
2007-07-04 23:03:50 +00:00
Peter Wemm
b9f3e68f95 Add i386 emulation wrappers for mmap/lseek/etc. These use COMPAT6, so
you must use the already existing, already in generic, COMPAT_FREEBSD6
kernel option for running old 32 bit binaries.

Approved by:  re (kensmith)
2007-07-04 23:02:40 +00:00
Matt Jacob
739c673c8d Try a cheap way to get around gcc4.2 believing that user arguments
to system calls can change across intervening functions.
2007-06-17 04:37:57 +00:00
Ed Maste
1dd702a59a Remove stale 'XXX implement' comments for syscalls which have since been
implemented.
2007-06-15 21:54:26 +00:00
Robert Watson
32f9753cfb Eliminate now-unused SUSER_ALLOWJAIL arguments to priv_check_cred(); in
some cases, move to priv_check() if it was an operation on a thread and
no other flags were present.

Eliminate caller-side jail exception checking (also now-unused); jail
privilege exception code now goes solely in kern_jail.c.

We can't yet eliminate suser() due to some cases in the KAME code where
a privilege check is performed and then used in many different deferred
paths.  Do, however, move those prototypes to priv.h.

Reviewed by:	csjp
Obtained from:	TrustedBSD Project
2007-06-12 00:12:01 +00:00
Matt Jacob
3a4ac24970 Quiesce warnings by initializing irql values to zero. 2007-06-10 04:40:13 +00:00
Matt Jacob
2ba956ed13 Ensure that newpath is always initialized, even for the error case. 2007-06-10 04:37:22 +00:00
Attilio Rao
a1fe14bc33 rufetch and calcru sometimes should be called atomically together.
This patch fixes places where they should be called atomically changing
their locking requirements (both assume per-proc spinlock held) and
introducing rufetchcalc which wrappers both calls to be performed in
atomic way.

Reviewed by: jeff
Approved by: jeff (mentor)
2007-06-09 21:48:44 +00:00
Attilio Rao
a140976eb4 The current rusage code show peculiar problems:
- Unsafeness on ruadd() in thread_exit()
- Unatomicity of thread_exiit() in the exit1() operations

This patch addresses these problems allocating p_fd as part of the
process and modifying the way it is accessed.

A small chunk of this patch, resolves a race about p_state in kern_wait(),
since we have to be sure about the zombif-ing process.

Submitted by: jeff
Approved by: jeff (mentor)
2007-06-09 18:56:11 +00:00
Pawel Jakub Dawidek
3b7917d766 - Reduce number of atomic operations needed to be implemented in asm by
implementing some of them using existing ones.
- Allow to compile ZFS on all archs and use atomic operations surrounded
  by global mutex on archs we don't have or can't have all atomic
  operations needed by ZFS.
2007-06-08 12:35:47 +00:00
Jeff Roberson
982d11f836 Commit 14/14 of sched_lock decomposition.
- Use thread_lock() rather than sched_lock for per-thread scheduling
   sychronization.
 - Use the per-process spinlock rather than the sched_lock for per-process
   scheduling synchronization.

Tested by:      kris, current@
Tested on:      i386, amd64, ULE, 4BSD, libthr, libkse, PREEMPTION, etc.
Discussed with: kris, attilio, kmacy, jhb, julian, bde (small parts each)
2007-06-05 00:00:57 +00:00
David Malone
041b706b2f Despite several examples in the kernel, the third argument of
sysctl_handle_int is not sizeof the int type you want to export.
The type must always be an int or an unsigned int.

Remove the instances where a sizeof(variable) is passed to stop
people accidently cut and pasting these examples.

In a few places this was sysctl_handle_int was being used on 64 bit
types, which would truncate the value to be exported.  In these
cases use sysctl_handle_quad to export them and change the format
to Q so that sysctl(1) can still print them.
2007-06-04 18:25:08 +00:00
Pawel Jakub Dawidek
b166b92692 Reimplement traverse() helper function:
1. Pass locking flags to VFS_ROOT().
2. Check v_mountedhere while the vnode is locked.
3. Always return locked vnode on success.

Change 1 fixes problem reported by Stephen M. Rumble - after
zfs_vfsops.c,1.9 change, zfs_root() no longer locks the vnode
unconditionally and traverse() didn't pass right lock type to
VFS_ROOT(). The result was that kernel paniced when .zfs/ directory
was accessed via NFS.
2007-06-04 11:31:46 +00:00
Attilio Rao
2feb50bf7d Revert VMCNT_* operations introduction.
Probabilly, a general approach is not the better solution here, so we should
solve the sched_lock protection problems separately.

Requested by: alc
Approved by: jeff (mentor)
2007-05-31 22:52:15 +00:00
Konstantin Belousov
9e223287c0 Revert UF_OPENING workaround for CURRENT.
Change the VOP_OPEN(), vn_open() vnode operation and d_fdopen() cdev operation
argument from being file descriptor index into the pointer to struct file.

Proposed and reviewed by:	jhb
Reviewed by:	daichi (unionfs)
Approved by:	re (kensmith)
2007-05-31 11:51:53 +00:00
Pawel Jakub Dawidek
0d99488ded There are too many false positive LORs reported by WITNESS, so when ZFS
debug is turned off, initialize locks with NOWITNESS flag.
At some point I'll get back to them, we would probably need BLESSING
functionality, which is currently turned off by default.
2007-05-26 21:37:14 +00:00
Pawel Jakub Dawidek
fbd08bbe6a DNLC_NO_VNODE can't be NULL.
Reported by:	ru
2007-05-24 13:44:45 +00:00
Pawel Jakub Dawidek
d4c4dfe96f FreeBSD's namecache works quite well with ZFS, so remove DNLC. 2007-05-23 21:33:02 +00:00
Olivier Houchard
302e130edc Remove duplicate includes.
Submitted by:   Cyril Nguyen Huu <cyril ci0 org>
2007-05-23 13:36:02 +00:00
Konstantin Belousov
1c182de9a9 Move futex support code from <arch>/support.s into linux compat directory.
Implement all futex atomic operations in assembler to not depend on the
fuword() that does not allow to distinguish between -1 and failure return.
Correctly return 0 from atomic operations on success.

In collaboration with:	rdivacky
Tested by:	Scot Hetzel <swhetzel gmail com>, Milos Vyletel <mvyletel mzm cz>
Sponsored by:	Google SoC 2007
2007-05-23 08:33:06 +00:00
Alexander Kabaev
23a29e45cd Allow FreeBSD's native ELF image activators to execute shared libraries the
same way it was enabled for Linux binares in linuxulator.

This allows binaries built with -pie. Many ports auto-detect -fPIE support
in GCC 4.2 and build binaries FreeBSD was unable to run.
2007-05-22 02:22:58 +00:00
Jeff Roberson
0ad5e7f326 - Move GDT/LDT locking into a seperate spinlock, removing the global
scheduler lock from this responsibility.

Contributed by:	Attilio Rao <attilio@FreeBSD.org>
Tested by:	jeff, kkenn
2007-05-20 22:03:57 +00:00
Jeff Roberson
222d01951f - define and use VMCNT_{GET,SET,ADD,SUB,PTR} macros for manipulating
vmcnts.  This can be used to abstract away pcpu details but also changes
   to use atomics for all counters now.  This means sched lock is no longer
   responsible for protecting counts in the switch routines.

Contributed by:		Attilio Rao <attilio@FreeBSD.org>
2007-05-18 07:10:50 +00:00
John Baldwin
19059a13ed Rework the support for ABIs to override resource limits (used by 32-bit
processes under 64-bit kernels).  Previously, each 32-bit process overwrote
its resource limits at exec() time.  The problem with this approach is that
the new limits affect all child processes of the 32-bit process, including
if the child process forks and execs a 64-bit process.  To fix this, don't
ovewrite the resource limits during exec().  Instead, sv_fixlimits() is
now replaced with a different function sv_fixlimit() which asks the ABI to
sanitize a single resource limit.  We then use this when querying and
setting resource limits.  Thus, if a 32-bit process sets a limit, then
that new limit will be inherited by future children.  However, if the
32-bit process doesn't change a limit, then a future 64-bit child will
see the "full" 64-bit limit rather than the 32-bit limit.

MFC is tentative since it will break the ABI of old linux.ko modules (no
other modules are affected).

MFC after:	1 week
2007-05-14 22:40:04 +00:00
Pawel Jakub Dawidek
57504dcfaf Share-lock a vnode where possible. 2007-05-02 01:03:10 +00:00
Alan Cox
37f3c8939a Eliminate the use of Giant from ia64-specific code in freebsd32_mmap(). 2007-05-01 17:10:01 +00:00
Alan Cox
4bd4f5a2e2 Synchronize vm map and object accesses.
Approved by: des@
2007-05-01 03:09:57 +00:00
Pawel Jakub Dawidek
cc7cd831b2 MFp4: Reduce diff against vendor code:
- Move FreeBSD-specific code to zfs_freebsd_*() functions in zfs_vnops.c
  and keep original functions as similar to vendor's code as possible.
- Add various includes back, now that we have them.
2007-04-23 00:52:07 +00:00
Dag-Erling Smørgrav
7621783a55 Now that we're MPSAFE, tell namei() to acquire Giant if necessary. 2007-04-22 08:41:52 +00:00
Pawel Jakub Dawidek
9de81c7273 MFp4:
@118370	Correct typo.

@118371	Integrate changes from vendor.

@118491	Show backtrace on unexpected code paths.

@118494	Integrate changes from vendor.

@118504	Fix sendfile(2). I had two ways of fixing it:
	1. Fixing sendfile(2) itself to use VOP_GETPAGES() instead of
	   hacking around with vn_rdwr(UIO_NOCOPY), which was suggested
	   by ups.
	2. Modify ZFS behaviour to handle this special case.

	Although 1 is more correct, I've choosen 2, because hack from 1
	have a side-effect of beeing faster - it reads ahead MAXBSIZE
	bytes instead of reading page by page. This is not easy to implement
	with VOP_GETPAGES(), at least not for me in this very moment.

	Reported by:	Andrey V. Elsukov <bu7cher@yandex.ru>

@118525	Reorganize the code to reduce diff.

@118526	This code path is expected. It is simply when file is opened with
	O_FSYNC flag.

	Reported by:	kris
	Reported by:	Michal Suszko <dry@dry.pl>
2007-04-21 12:02:57 +00:00
Pawel Jakub Dawidek
32371d2025 MFp4: Fix automatic snapshot mount when unprivileged user does lookup
on a snapshot directory:
- Remove PRIV_VFS_MOUNT check - regular users can mount snapshots
  via lookups on snapshot directory.
- Reset mount credential to kcred, so user won't be able to unmount
  the snapshot.
- Reset owner uid.
- Unlock vnode in case of a failure.

Reported by:	simokawa
2007-04-18 15:24:48 +00:00
Pawel Jakub Dawidek
a1bcf4dc7b - Fix a leftover - vfs_mount_alloc() is now exported properly.
This fixes stange panics when listing .zfs/snapshot/ directory for me.
  Reported by:	simokawa
  Reported by:	Johan Hendriks <Johan@double-l.nl>
- Hide cache_purge() under FREEBSD_NAMECACHE like in other files.
- Protect mnt_flag with mount interlock.
2007-04-17 21:16:34 +00:00
Dag-Erling Smørgrav
78c3440e7d Whitespace cleanup. 2007-04-15 17:02:03 +00:00
Robert Watson
d72a615878 Some Linux applications (ping) pass a non-NULL msg_control argument to
sendmsg() while using a 0-length msg_controllen.  This isn't allowed in
the FreeBSD system call ABI, so detect this case and set msg_control to
NULL.  This allows Linux ping to work.

Submitted by:	rdivacky
2007-04-14 10:35:09 +00:00
Wojciech A. Koszek
f7caeade24 strchr() and strrchr() are already present in the kernel, but with less
popular names. Hence:

- comment current index() and rindex() functions, as these serve the same
  functionality as, respectively, strchr() and strrchr() from userland;
- add inlined version of strchr() and strrchr(), as we tend to use them more
  often;
- remove str[r]chr() definitions from ZFS code;

Reviewed by:	pjd
Approved by:	cognet (mentor)
2007-04-10 21:42:12 +00:00
Scott Long
6eef46be3b Whitespace fixes 2007-04-10 21:37:37 +00:00
Pawel Jakub Dawidek
2d03e33170 Try to stabilize ZFS with regard to memory consumption:
- Allow to shrink ARC down to 16MB (instead of 64MB).
- Set arc_max to 1/2 of kmem_map by default.
- Start freeing things earlier when low memory situation is detected.
- Serialize execution of arc_lowmem().

I decided to setup minimum ZFS memory requirements to 512MB of RAM and 256MB of
kmem_map size. If there is less RAM or kmem_map, a warning will be printed.
World is cruel, be no better. In other words: modern file system requires
modern hardware:)

From ZFS administration guide:

"Currently the minimum amount of memory recommended to install a Solaris
 system is 512 Mbytes. However, for good ZFS performance, at least one
 Gbyte or more of memory is recommended."
2007-04-10 02:35:57 +00:00
Pawel Jakub Dawidek
24bda1641f Instead of detecting if lock is already initialized based on standard 1 bit
check, use more accurate 13 bits check. We had too many false-positives with
the standard check.

Reported by:	mlaier
2007-04-09 01:05:31 +00:00
Pawel Jakub Dawidek
bdebccf9b9 Extend kobj compatibility KPI to support operating on files before and
after the root file system is mounted.
This is one of the changes that will allow to put root file system on ZFS.
2007-04-08 23:57:08 +00:00
Pawel Jakub Dawidek
ffe54ff0ec MFp4: Synchronize with recent OpenSolaris changes. 2007-04-08 16:29:25 +00:00
Scott Long
1eba4c7948 Add the CAM 'SG' peripheral device. This device implements a subset of the
Linux SCSI SG passthrough device API.  The intention is to allow for both
running of Linux apps that want to talk to /dev/sg* nodes, and to facilitate
porting of apps from Linux to FreeBSD.  As such, both native and linuxolator
entry points and definitions are provided.

Caveats:
 - This does not support the procfs and sysfs nodes that the Linux SG
   driver provides.  Some Linux apps may rely on these for operation,
   others may only use them for informational purposes.
 - More ioctls need to be implemented.
 - Linux uses a naming scheme of "sg[a-z]" for devices, while FreeBSD uses a
   scheme of "sg[0-9]".  Devfs aliasis (symlinks) are automatically created
   to link the two together.  However, tools like camcontrol only see the
   native names.
 - Some operations were originally designed to return byte counts or other
   data directly as the syscall return value.  The linuxolator doesn't appear
   to support this well, so this driver just punts for these cases.

Now that the driver is in place, others are welcome to add missing
functionality.  Thanks to Roman Divacky for pushing this work along.
2007-04-07 19:40:58 +00:00
Jung-uk Kim
6e612eca81 Fix kernel module dependency. linprocfs depends on sysvmsg and sysvsem.
Submitted by:	nork
2007-04-06 18:15:56 +00:00
Pawel Jakub Dawidek
4d00f78b40 We have strcasecmp() in libkern now. 2007-04-06 11:18:57 +00:00
Pawel Jakub Dawidek
f0a75d274a Please welcome ZFS - The last word in file systems.
ZFS file system was ported from OpenSolaris operating system. The code in under
CDDL license.

I'd like to thank all SUN developers that created this great piece of software.

Supported by:	Wheel LTD (http://www.wheel.pl/)
Supported by:	The FreeBSD Foundation (http://www.freebsdfoundation.org/)
Supported by:	Sentex (http://www.sentex.net/)
2007-04-06 01:09:06 +00:00
Robert Watson
5e3f7694b1 Replace custom file descriptor array sleep lock constructed using a mutex
and flags with an sxlock.  This leads to a significant and measurable
performance improvement as a result of access to shared locking for
frequent lookup operations, reduced general overhead, and reduced overhead
in the event of contention.  All of these are imported for threaded
applications where simultaneous access to a shared file descriptor array
occurs frequently.  Kris has reported 2x-4x transaction rate improvements
on 8-core MySQL benchmarks; smaller improvements can be expected for many
workloads as a result of reduced overhead.

- Generally eliminate the distinction between "fast" and regular
  acquisisition of the filedesc lock; the plan is that they will now all
  be fast.  Change all locking instances to either shared or exclusive
  locks.

- Correct a bug (pointed out by kib) in fdfree() where previously msleep()
  was called without the mutex held; sx_sleep() is now always called with
  the sxlock held exclusively.

- Universally hold the struct file lock over changes to struct file,
  rather than the filedesc lock or no lock.  Always update the f_ops
  field last. A further memory barrier is required here in the future
  (discussed with jhb).

- Improve locking and reference management in linux_at(), which fails to
  properly acquire vnode references before using vnode pointers.  Annotate
  improper use of vn_fullpath(), which will be replaced at a future date.

In fcntl(), we conservatively acquire an exclusive lock, even though in
some cases a shared lock may be sufficient, which should be revisited.
The dropping of the filedesc lock in fdgrowtable() is no longer required
as the sxlock can be held over the sleep operation; we should consider
removing that (pointed out by attilio).

Tested by:	kris
Discussed with:	jhb, kris, attilio, jeff
2007-04-04 09:11:34 +00:00
Jung-uk Kim
357afa7113 MFP4: Turn emul_lock into a mutex.
Submitted by:	rdivacky
2007-04-02 18:38:13 +00:00
Jung-uk Kim
3dd8390fd9 Use underlying structures instead of kernel_sysctlbyname() for msginfo and
seminfo because kernel_sysctlbyname() is slow.  There is no dependency
problem since linux module depends on both sysvmsg and sysvsem and linprocfs
depends on it in turn.

Pointed out by:	des
Reviewed by:	des
2007-03-30 17:56:44 +00:00
Jung-uk Kim
a328699b34 MFP4: Linux futex support for amd64.
Initial patch was submitted by kib and additional work was done
by Divacky Roman.

Tested by:	emulation
2007-03-30 01:07:28 +00:00
Julian Elischer
6734f35eac Implement the openat() linux syscall
Submitted by:	Roman Divacky (rdivacky@)
MFC after:	2 weeks
2007-03-29 02:11:46 +00:00
Dag-Erling Smørgrav
771709eb78 Add a pn_destroy field to pfs_node. This field points to a destructor
function which is called from pfs_destroy() before the node is reclaimed.

Modify pfs_create_{dir,file,link}() to accept a pointer to a destructor
function in addition to the usual attr / fill / vis pointers.

This breaks both the programming and binary interfaces between pseudofs
and its consumers.  It is believed that there are no pseudofs consumers
outside the source tree, so that the impact of this change is minimal.

Submitted by:	Aniruddha Bohra <bohra@cs.rutgers.edu>
2007-03-12 12:16:52 +00:00
Robert Watson
b77ad8fc3b In translate_path_major_minor(), do not calculate otherwise unused 'fp'
variable, avoiding an extra locking of the file descriptor array.
2007-03-06 07:39:12 +00:00
Jung-uk Kim
5017af608d MFP4: 113090, 113130, 113132
Add Linux kernel version strings to /proc/sys/kernel.
2007-03-02 01:10:26 +00:00
Jung-uk Kim
a4e3bad794 MFP4: 115220, 115222
- Fix style(9) and reduce diff between amd64 and i386.
- Prefix Linuxulator macros with LINUX_ to prevent future collision.
2007-03-02 00:08:47 +00:00
Alexander Leidinger
8cf5ee2e2a MFp4 (110541):
Sync with rev 1.7 in NetBSD.

	Obtained from:	NetBSD
2007-02-25 12:43:07 +00:00
Alexander Leidinger
f9dac96185 MFp4 (110523, parts which apply cleanly):
semi-automatic style(9)

The futex stuff already differs a lot (only a small part does not differ)
from NetBSD, so we are already way off and can't apply changes from NetBSD
automatically. As we need to merge everything by hand already, we can even
make the files comply to our world order.
2007-02-25 12:40:35 +00:00
Alexander Leidinger
802e08a360 Partial MFp4 of 114977:
Whitespace commit: Fix grammar, spelling and punctuation.

Submitted by:	"Scot Hetzel" <swhetzel@gmail.com>
2007-02-24 16:49:25 +00:00
Alexander Leidinger
1a26db0a3a MFp4 (114193 (i386 part), 114194, 114195, 114200):
- Dont "return" in linux_clone() after we forked the new process in a case
   of problems.
 - Move the copyout of p2->p_pid outside the emul_lock coverage in
   linux_clone().
 - Cache the em->pdeath_signal in a local variable and move the copyout
   out of the emul_lock coverage.
 - Move the free() out of the emul_shared_lock coverage in a preparation
   to switch emul_lock to non-sleepable lock (mutex).

Submitted by:	rdivacky
2007-02-23 22:39:26 +00:00
Alexander Leidinger
e8b8b834b4 MFp4 (part of 114132):
- Fix a LOR caused by holding emul_lock and proctree_lock at once.

Submitted by:	rdivacky
2007-02-23 22:29:24 +00:00
John Baldwin
a96255b62d Use 'pause' in several places rather than trying to tsleep() on NULL (which
triggers a KASSERT) or local variables.  In the case of kern_ndis, the
tsleep() actually used a common sleep address (curproc) making it
susceptible to a premature wakeup.
2007-02-23 16:25:08 +00:00
Paolo Pisati
ef544f6312 o break newbus api: add a new argument of type driver_filter_t to
bus_setup_intr()

o add an int return code to all fast handlers

o retire INTR_FAST/IH_FAST

For more info: http://docs.freebsd.org/cgi/getmsg.cgi?fetch=465712+0+current/freebsd-current

Reviewed by: many
Approved by: re@
2007-02-23 12:19:07 +00:00
Konstantin Belousov
b4bb515484 Remove extern int hz; use proper include file instead. 2007-02-02 08:58:16 +00:00
Konstantin Belousov
d0b2365eec Introduce some more SO_ option equivalents from Linux to FreeBSD.
The msg variable in linux_recvmsg() was not initialized.
Copy it from userspace.

Submitted by: rdivacky
2007-02-01 13:36:19 +00:00
Konstantin Belousov
75ee4e5462 No need to lock emul_lock in exit_group() because em->shared
cannot change (because its referenced by curthread). This fixes
a LOR caused by acquiring emul_shared_lock while holding emul_lock.

Fix typo in comment.

Submitted by: rdivacky
2007-02-01 13:33:33 +00:00
Konstantin Belousov
25954d7430 No need to synchronize linux_schedtail with linux_proc_init.
p->p_emuldata is properly initialized in the time when the child can run.

Do not set p->p_emuldata to NULL when the process is exiting.
It does not make any sense and only costs 2 mutex operations.

Do not lock emul_data to unlock it on the very next line.
Comment on possible race while there.

Reparent all procs that are part of a threading group but not its leaders
to init and SIGCHLD init to finish the zombies off. This fixes zombies
left after opera's exit. [1]

There is no need to lock p_em in the linux_proc_init CLONE_THREAD
case because the process cannot change the address of the p_em->shared
because its currently running this code path.
Move assigning of em->shared outside emul_shared_lock.

Noticed by: Scott Robbins <scottro@nyc.rr.com> [1]
Submitted by: rdivacky
2007-02-01 13:29:27 +00:00
Alexander Leidinger
eff9c72b4b Use a printf-modifier which doesn't need a cast.
Submitted by:	scottl
2007-01-21 13:18:52 +00:00
Alexander Leidinger
9cb5a012fb Fix tinderbox build on amd64. 2007-01-20 19:32:23 +00:00
Alexander Leidinger
d071f5048c MFp4 (113077, 113083, 113103, 113124, 113097):
Dont expose em->shared to the outside world before its properly
	initialized. Might not affect anything but its at least a better
	coding style.

	Dont expose em via p->p_emuldata until its properly initialized.
	This also enables us to get rid of some locking and simplify the
	code because we are workin on a local copy.

	In linux_fork and linux_vfork create the process in stopped state
	to be sure that the new process runs with fully initialized emuldata
	structure [1]. Also fix the vfork (both in linux_clone and linux_vfork)
	race that could result in never woken up process [2].

Reported by:	Scot Hetzel	[1]
Suggested by:	jhb		[2]
Reviewed by:	jhb (at least some important parts)
Submitted by:	rdivacky
Tested by:	Scot Hetzel (on amd64)

Change 2 comments (in the new code) to comply to style(9).

Suggested by:	jhb
2007-01-20 14:58:59 +00:00
Alexander Leidinger
f0cad96d23 Ooops, fix the ratelimit. 2007-01-20 11:31:14 +00:00
Alexander Leidinger
456ede3976 Convert a KASSERT into a runtime warning (rate limited) + failsafe fallback.
Because of a stupid bug (also fixed with this commit) the KASSERT was
triggered when runnung the linux top.

Pointy hat to:	netchild
2007-01-20 11:07:41 +00:00
Konstantin Belousov
4349c6ba29 Add support for LINUX_O_DIRECT, LINUX_O_DIRECT and LINUX_O_NOFOLLOW flags
to open() [1].
Improve locking for accessing session control structures [2].
Try to document (most likely harmless) races in the code [3].

Based on submission by:	Intron (intron at intron ac) [1]
Reviewed by:		jhb [2]
Discussed with:		netchild, rwatson, jhb [3]
2007-01-18 09:32:08 +00:00
Alexander Leidinger
17011df1e1 MFp4 (112379):
Implement SETALL/GETALL IPC primitives. This fixes some LTP testcases and
LabView is able to proceed a little bit further.

Submitted by:	rdivacky
2007-01-14 16:34:43 +00:00
Alexander Leidinger
31becc7692 MFp4 (112705):
Inherit setting of the default emulation version to the jails.

Pointed out by:	jhb
Submitted by:	rdivacky
2007-01-14 16:07:01 +00:00
Alexander Leidinger
a849401985 MFp4 (112646):
Now (ok it's been a while...) that FreeBSD has RLIMIT_AS too, we can use
it in the linuxolator instead of ignoring it.

This fixes a LTP test.

Submitted by:	rdivacky
2007-01-07 19:30:19 +00:00
Alexander Leidinger
bb419e1b5b MFp4 (112535):
No need to lock prison in a case of linux_use26 because the int
setting is atomic and process cannot leave jail.

Submitted by:	kib
Reviewed by:	jhb
Requested by:	rdivacky
2007-01-07 19:20:17 +00:00
Alexander Leidinger
0ed6f09c4e MFp4 (112534):
Dont lock em in a case of just using em->shared->group_pid because
the group_pid never changes.

Submitted by:	rdivacky
Reviewed by:	kib
Glanced at by:	jhb
2007-01-07 19:14:06 +00:00
Alexander Leidinger
291081ce0a MFp4 (112499):
Protect em->shared with the lock in case of CLONE_THREAD.

Submitted by:	rdivacky
2007-01-07 19:09:20 +00:00
Alexander Leidinger
1c65504ca8 MFp4 (112498):
Rename the locking flags to EMUL_DOLOCK and EMUL_DONTLOCK to prevent confusion.

Submitted by:	rdivacky
2007-01-07 19:00:38 +00:00
Xin LI
59038483f5 Fix amd64 build.
Submitted by:	Divacky Roman <xdivac02 stud fit vutbr cz>
2007-01-01 14:47:45 +00:00
Alexander Leidinger
c9447c7551 MFp4 (111746, 108671, 108945, 112352):
- add linux utimes syscall [1]
 - add linux rt_sigtimedwait syscall [2]

Submitted by:	"Scot Hetzel" <swhetzel@gmail.com> [1]
Submitted by:	Bruce Becker <hostmaster@whois.gts.net> [2]
PR:		93199 [2]
2006-12-31 13:16:00 +00:00
Alexander Leidinger
a628609ee9 MFp4:
- semi-automatic style fixes
2006-12-31 12:42:55 +00:00
Alexander Leidinger
9ce8f9bcdd MFp4 (111746+):
Redo the checking for 2.6 emulation. We now cache the value of
  use26 and replace calls to linux_get_osrelease() + parsing with
  a call to linux_use26(). Typical path is lockless now.

  Pointed out by: kib

This allows to ship RELENG_7_0 with a default osrelease of 2.4.2 and the
possibility to enable 2.6.x emulation without the possible performance
impact of the previous version of the check.

Submitted by:	rdivacky
2006-12-31 12:39:10 +00:00
Alexander Leidinger
ef95cfeab9 MFp4:
- semi-automatic style fixes
 - spelling fixes in comments
 - add some comments
2006-12-31 11:56:16 +00:00
Sam Leffler
b1d83a2508 add entry points required by newer broadcom wireless driver
PR:		kern/106131
Submitted by:	Scot Hetzel
MFC after:	2 weeks
2006-12-25 17:04:41 +00:00
Alexander Leidinger
de6bf3bfcd MFP4 (110956):
Add definition for LINUX_MSG_INFO.

This fixes the tinderbox errors.

Submitted by:	rdivacky
2006-12-21 13:11:06 +00:00
Jung-uk Kim
77424f4177 MFP4: 109655
- Move linux_nanosleep() from src/sys/amd64/linux32/linux32_machdep.c to
src/sys/compat/linux/linux_time.c.
- Validate timespec ranges before use as Linux kernel does.
- Fix l_timespec structure.
- Clean up style(9) nits.
2006-12-20 20:17:35 +00:00
Jung-uk Kim
34ec45fe0d MFP4: 110179
Add rudimentary IPC_INFO/MSG_INFO command support for linux_msgctl()
to pacify Linux ipcs(1).  While I am here, add more bound checks
for linux_msgsnd() and linux_msgrcv().
2006-12-20 20:08:45 +00:00
Jung-uk Kim
5e868cbb79 Regen. 2006-12-20 19:39:10 +00:00
Jung-uk Kim
127891cab9 MFP4: (part of) 110058
Fix 32-bit msgsnd(3) and msgrcv(3) emulations for amd64.
2006-12-20 19:36:03 +00:00
Jung-uk Kim
f61480ecf5 MFP4: (part of) 110058
Use new kern_msgsnd()/kern_msgrcv() to fix linux32 emulation on amd64.
2006-12-20 19:30:52 +00:00
Jung-uk Kim
b34608fea5 MFP4: 109653
Linux mknod(2) can open any files, not just char/block or fifo files.
This fixes Linux Test Project test cases mknod01, mknod07 and mknod09.
2006-12-04 22:46:09 +00:00
Jung-uk Kim
b256a1e10b MFP4: 109652
Fixes for 'blocking in fifoor state' problem of LTP tests.
linux_*stat*() functions were opening files with O_RDONLY to get
major/minor pair for char/block special files.  Unfortunately,
when these functions are used against fifo, it is blocked forever
because there is no writer.  Instead, we only open char/block special
files for major/minor conversion.  We have to get rid of kern_open()
entirely from translate_path_major_minor() but today is not the day.
While I am here, add checks for errors before calling
translate_path_major_minor().
2006-12-04 22:38:52 +00:00
Alexander Leidinger
5ac7315788 MFP4 (110957)
Use TAILQ_FOREACH_SAFE instead of the unsafe one where an item is removed
from the queue.

This prevents a panic on kldunload.

Submitted by:	rdivacky
Tested by:	bsam
2006-12-03 21:00:31 +00:00
Alexander Leidinger
f6018b1434 MFP4 (108673, 110519, 110874):
- Currently LINUX_MAX_COMM_LEN is smaller than MAXCOMLEN, but in case
  this will change we have a buffer overflow. Apply some defensive
  programming to DTRT when this should happen.
- Use copyinstr() instead of copyin where appropriate.
  * Fallback to copyin() in case of ENAMETOOLONG. [1]
  * Use the right source and destination (it was wrong before).
- Use strlcpy instead of strcpy.
- Properly lock the read case (PR_GET_NAME) like the write case.

Reviewed by:	rwatson (except [1])
Suggested by:	rwatson [1]
2006-12-02 14:56:25 +00:00
Jung-uk Kim
e40fc50b9f MFP4: Change 109654
Add two linprocfs entries for Linux IPC:

	/proc/sys/kernel/msgmni	->	kern.ipc.msgmni
	/proc/sys/kernel/sem	->	kern.ipc.semmsl
					kern.ipc.semmns
					kern.ipc.semopm
					kern.ipc.semmni

This fixes msgget03 and semget05 from Linux Test Project (LTP) test suite.
msgctl08 and msgctl09 also use /proc/sys/kernel/msgmni but another fix is
required from p4 (Change 110179).

Requested by:	netchild
2006-11-27 21:10:55 +00:00
Konstantin Belousov
bdaee9ef4e Add missed ")". Fix the build.
Pointy hat to:	kib
2006-11-18 17:27:39 +00:00
Konstantin Belousov
cce1514679 Sync struct sysinfo with real one from linux.
Submitted by:	rdivacky
2006-11-18 14:37:54 +00:00
Konstantin Belousov
0c00520b93 Use standard debugging facilities in linux_getcwd().
Submitted by:	rdivacky
2006-11-18 13:31:03 +00:00
Konstantin Belousov
d559d18183 Add debuging printfs to syscalls that do not contain it yet. In
sethostname do not print the hostname because it would require to copyin
the string. Sethostname is not very frequently used.

Submitted by:	rdivacky
2006-11-18 13:00:59 +00:00
Konstantin Belousov
f472c6e35a Remove unecessary locking of process in linux_getpid.
Suggested by:	jhb
Submitted by:	rdivacky
2006-11-18 10:12:43 +00:00
Konstantin Belousov
292a85f4a8 Group pid and parent are shared in a case of CLONE_THREAD not CLONE_VM.
This fix lets clone02 LTP test pass with 2.6 emulation. In reality 99%
of the cases are that CLONE_VM and CLONE_THREAD are both set so it
seemed to work.

Submitted by: rdivacky
2006-11-15 11:04:37 +00:00
Konstantin Belousov
0132096dfd In rev 1.188 of linux_misc.c the added check for valid options ommited
__WCLONE. This fixes it thus fixing skype/teamspeak to not keep zombies
after exit.

Submitted by: rdivacky
Reported by: Bakul Shah (bakul at bitblocks com)
2006-11-15 10:01:06 +00:00
Ruslan Ermilov
9f70620442 Regen.
Forgotten by:	trhodes
2006-11-11 21:49:08 +00:00
Tom Rhodes
6aeb05d7be Merge posix4/* into normal kernel hierarchy.
Reviewed by:	glanced at by jhb
Approved by:	silence on -arch@ and -standards@
2006-11-11 16:26:58 +00:00
Robert Watson
acd3428b7d Sweep kernel replacing suser(9) calls with priv(9) calls, assigning
specific privilege names to a broad range of privileges.  These may
require some future tweaking.

Sponsored by:           nCircle Network Security, Inc.
Obtained from:          TrustedBSD Project
Discussed on:           arch@
Reviewed (at least in part) by: mlaier, jmg, pjd, bde, ceri,
                        Alex Lyashkov <umka at sevcity dot net>,
                        Skip Ford <skip dot ford at verizon dot net>,
                        Antoine Brodin <antoine dot brodin at laposte dot net>
2006-11-06 13:42:10 +00:00
Ruslan Ermilov
f42326c579 Regen. 2006-11-03 21:23:33 +00:00
Ruslan Ermilov
0b160a7d2b Fix build breakage introduced in previous commit (redeclatation
of sctp functions).
2006-11-03 21:21:28 +00:00
Randall Stewart
af99851047 This commits the remake in kern/ make sysent to get
the correct syscalls.master's $FreeBSD$ tag record and
a make sysent in sys/compat/freebsd32. Thanks Ruslan
for pointing out the steps I missed :-0
Approved by:	gnn
2006-11-03 18:57:49 +00:00
Randall Stewart
f8829a4a40 Ok, here it is, we finally add SCTP to current. Note that this
work is not just mine, but it is also the works of Peter Lei
and Michael Tuexen. They both are my two key other developers
working on the project.. and they need ata-boy's too:
****
peterlei@cisco.com
tuexen@fh-muenster.de
****
I did do a make sysent which updated the
syscall's and sysproto.. I hope that is correct... without
it you don't build since we have new syscalls for SCTP :-0

So go out and look at the NOTES, add
option SCTP (make sure inet and inet6 are present too)
and play with SCTP.

I will see about comitting some test tools I have after I
figure out where I should place them. I also have a
lib (libsctp.a) that adds some of the missing socketapi
functions that I need to put into lib's.. I will talk
to George about this :-)

There may still be some 64 bit issues in here, none of
us have a 64 bit processor to test with yet.. Michael
may have a MAC but thats another beast too..

If you have a mac and want to use SCTP contact Michael
he maintains a web site with a loadable module with
this code :-)

Reviewed by:	gnn
Approved by:	gnn
2006-11-03 15:23:16 +00:00
Alexander Leidinger
3680a41902 Backout the linux aio stuff. Several problems where identified and the
dynamic nature (if no native aio code is available, the linux part
returns ENOSYS because of missing requisites) should be solved differently
than it is.

All this will be done in P4.

Not included in this commit is a backout of the changes to the native aio
code (removing static in some places). Those changes (and some more) will
also be needed when the reworked linux aio stuff will reenter the tree.

Requested by:	rwatson
Discussed with:	rwatson
2006-10-29 14:02:39 +00:00
Alexander Leidinger
e3e6449247 style(9)
Noticed by:	rwatson
2006-10-29 09:50:55 +00:00
Alexander Leidinger
c4ce314b40 Fix style(9).
Noticed by:	rwatson
2006-10-28 16:47:38 +00:00
Alexander Leidinger
955d762aca MFP4:
Implement prctl().

Submitted by:	rdivacky
Tested with:	LTP
2006-10-28 10:59:59 +00:00
Maxim Sobolev
016b81e405 Regen. 2006-10-24 17:25:36 +00:00
Maxim Sobolev
ef16706d34 Fix kernel breakage introduced in the previous commit (redeclatation
of the audit functions).
2006-10-24 17:24:11 +00:00
Robert Watson
c71bf4bf63 Regenerate. 2006-10-24 13:54:56 +00:00
Robert Watson
a1dce47980 Hook up audit functions in the freebsd32 compatibility code. It is
believed these likely don't require wrappers.

Reported by:	sobomax
MFC after:	3 days
2006-10-24 13:49:44 +00:00
Robert Watson
aed5570872 Complete break-out of sys/sys/mac.h into sys/security/mac/mac_framework.h
begun with a repo-copy of mac.h to mac_framework.h.  sys/mac.h now
contains the userspace and user<->kernel API and definitions, with all
in-kernel interfaces moved to mac_framework.h, which is now included
across most of the kernel instead.

This change is the first step in a larger cleanup and sweep of MAC
Framework interfaces in the kernel, and will not be MFC'd.

Obtained from:	TrustedBSD Project
Sponsored by:	SPARTA
2006-10-22 11:52:19 +00:00
David Xu
034b26fc65 Regenerate. 2006-10-17 02:28:58 +00:00
David Xu
3f9223b65d Sync with master. 2006-10-17 02:28:26 +00:00
Alexander Leidinger
6474221698 Fix compile (use the right variable name). 2006-10-15 14:34:03 +00:00
Alexander Leidinger
6a1162d4cd MFP4 (with some minor changes):
Implement the linux_io_* syscalls (AIO). They are only enabled if the native
AIO code is available (either compiled in to the kernel or as a module) at
the time the functions are used. If the AIO stuff is not available there
will be a ENOSYS.

From the submitter:
---snip---
DESIGN NOTES:

1. Linux permits a process to own multiple AIO queues (distinguished by
   "context"), but FreeBSD creates only one single AIO queue per process.
   My code maintains a request queue (STAILQ of queue(3)) per "context",
   and throws all AIO requests of all contexts owned by a process into
   the single FreeBSD per-process AIO queue.

   When the process calls io_destroy(2), io_getevents(2), io_submit(2) and
   io_cancel(2), my code can pick out requests owned by the specified context
   from the single FreeBSD per-process AIO queue according to the per-context
   request queues maintained by my code.

2. The request queue maintained by my code stores contrast information between
   Linux IO control blocks (struct linux_iocb) and FreeBSD IO control blocks
   (struct aiocb). FreeBSD IO control block actually exists in userland memory
   space, required by FreeBSD native aio_XXXXXX(2).

3. It is quite troubling that the function io_getevents() of libaio-0.3.105
   needs to use Linux-specific "struct aio_ring", which is a partial mirror
   of context in user space. I would rather take the address of context in
   kernel as the context ID, but the io_getevents() of libaio forces me to
   take the address of the "ring" in user space as the context ID.

   To my surprise, one comment line in the file "io_getevents.c" of
   libaio-0.3.105 reads:

             Ben will hate me for this

REFERENCE:

1. Linux kernel source code:   http://www.kernel.org/pub/linux/kernel/v2.6/
   (include/linux/aio_abi.h, fs/aio.c)

2. Linux manual pages:         http://www.kernel.org/pub/linux/docs/manpages/
   (io_setup(2), io_destroy(2), io_getevents(2), io_submit(2), io_cancel(2))

3. Linux Scalability Effort:   http://lse.sourceforge.net/io/aio.html
   The design notes:           http://lse.sourceforge.net/io/aionotes.txt

4. The package libaio, both source and binary:
       http://rpmfind.net/linux/rpm2html/search.php?query=libaio
   Simple transparent interface to Linux AIO system calls.

5. Libaio-oracle:              http://oss.oracle.com/projects/libaio-oracle/
   POSIX AIO implementation based on Linux AIO system calls (depending on
   libaio).
---snip---

Submitted by:	Li, Xiao <intron@intron.ac>
2006-10-15 14:22:14 +00:00
Alexander Leidinger
687c23be1d MFP4 (107868 - 107870):
Use a macro to test for a valid signal instead of doing it my hand everywhere.

Submitted by:	rdivacky
2006-10-15 12:51:43 +00:00
Giorgos Keramidas
050f8bb67d Spell proc/sys/kernel/pid_max correctly in a comment.
Submitted by:	rdivacky
2006-10-11 20:32:46 +00:00
John Baldwin
8528552b0d Don't pass unused bufsz to kern_shmctl(). 2006-10-10 22:46:50 +00:00
John Baldwin
f3ea244ea9 Only try to copyin a msqid for the IPC_SET command to msgctl(). Other
commands (such as IPC_RMID) were bogusly failing with EFAULT.

Tested by:	jkim
2006-10-10 22:46:22 +00:00
John Baldwin
7f4c1dd0d6 Remove unnecessary casts before PTRIN(). 2006-10-10 22:44:59 +00:00
Alexander Leidinger
28638377ad - change if (cond) panic() to KASSERT.
- Dont forget to free em in a case of error.

Suggested by:	ssouhlal
Submitted by:	rdivacky
Tested with:	LTP
2006-10-08 17:10:34 +00:00
Alexander Leidinger
7660ace19c - Replace homegrown check for FIFO with S_ISFIFO. [1]
- Check the status of the options before messing with it.

Inspired by:	NetBSD [1]
Submitted by:	rdivacky
Tested with:	LTP
2006-10-08 17:08:27 +00:00
Alexander Leidinger
236e97b2b2 Implement /proc/sys/kernel/pid_max.
Submitted by:	rdivacky
Tested with:	LTP
2006-10-08 16:55:27 +00:00
David Xu
295426f4c5 Regenerate. 2006-10-06 08:24:37 +00:00
David Xu
ae7d8a6766 Implement 32bit umtx_lock and umtx_unlock system calls, these two system
calls are not used by libthr in RELENG_6 and HEAD, it is only used by
the libthr in RELENG-5, the _umtx_op system call can do more incremental
dirty works than these two system calls without having to introduce new
system calls or throw away old system calls when things are going on.
2006-10-06 08:22:08 +00:00
David Xu
312a0e5f06 Regenerate. 2006-10-05 01:58:57 +00:00
David Xu
e6e7f16cb4 Oops, add the missing file. 2006-10-05 01:58:08 +00:00
David Xu
c6511aea86 Move some declaration of 32-bit signal structures into file
freebsd32-signal.h, implement sigtimedwait and sigwaitinfo system calls.
2006-10-05 01:56:11 +00:00
Robert Watson
531147aa3e Regenerate. 2006-10-03 20:48:11 +00:00
Robert Watson
dfb041ca62 Change getpagesize() system call audit event to more clearly indicate
that we don't audit it.

MFC after:	3 days
Obtained from:	TrustedBSD Project
2006-10-03 20:48:03 +00:00
Poul-Henning Kamp
f645b0b51c First part of a little cleanup in the calendar/timezone/RTC handling.
Move relevant variables to <sys/clock.h> and fix #includes as necessary.

Use libkern's much more time- & spamce-efficient BCD routines.
2006-10-02 12:59:59 +00:00
Alexander Leidinger
d4b7423fa1 MFp4:
- Linux returns ENOPROTOOPT in a case of not supported opt to setsockopt.
- Return EISDIR in pread() when arg is a directory.
- Return EINVAL instead of EFAULT when namelen is not correct in accept().
- Return EINVAL instead of EACCESS if invalid access mode is entered in
  access().
- Return EINVAL instead of EADDRNOTAVAIL in a case of bad salen param
  to bind().

Submitted by:	rdivacky
Tested with:	LTP (vfork01 fails now, but it seems to be a race and
		not caused by those changes)
MFC after:	1 week
2006-09-23 19:06:54 +00:00
David Xu
4af4fcb71a Regenerate. 2006-09-23 00:27:53 +00:00
David Xu
5c26f4cea8 Enable sigwait. 2006-09-23 00:27:11 +00:00
David Xu
ac3674aa52 Regenerate. 2006-09-22 15:05:34 +00:00
David Xu
cda9a0d1c2 Add compatible code to let 32bit libthr work on 64bit kernel. 2006-09-22 15:04:28 +00:00
David Xu
27bbb2e71f Regenerate. 2006-09-22 00:53:43 +00:00
David Xu
1eec02f538 Add umtx support for 32bit process on AMD64 machine. 2006-09-22 00:52:54 +00:00
David Xu
ecc313475b Regenerate. 2006-09-21 04:50:38 +00:00
David Xu
47bd78d24d sync with master. 2006-09-21 04:49:36 +00:00
Robert Watson
da7cbdc2b3 Regenerate. 2006-09-17 13:29:36 +00:00
Robert Watson
6c2d307a0e AUE_SIGALTSTACK instead of AUE_SIGPENDING for sigaltstack().
Obtained from:	TrustedBSD Project
MFC after:	3 days
2006-09-17 13:28:11 +00:00
Alexander Leidinger
18f81b3dfa - don't reboot() when feed with wrong parameters (and enough permissions) [1]
- add support to power off the system [2]
- check the linux magic values [3]

Submitted by:	Marcin Cieslak <saper@SYSTEM.PL> [1,2]
Modelled after:	linux man page of the reboot() syscall [3]
Found by:	LTP testcase "reboot02" [1]
Tested with:	LTP testcase "reboot02" [1,3]
MFC after:	1 week
2006-09-16 14:12:04 +00:00
Alexander Leidinger
db0d964062 The Linux unlink syscall uses a different errno value when trying to unlink
a directory.

PR:		102897 [1]
Noticed by:	Knut Anders Hatlen <kahatlen@gmail.com>, testrun with LTP [1]
Submitted by:	Marcin Cieslak <saper@SYSTEM.PL>
Tested by:	netchild (LTP test run)
2006-09-10 13:47:56 +00:00
Alexander Leidinger
8618fd85a3 - Extend the coverage of PROC_LOCK to cover wakeup(&p->p_emuldata);
- Lock the emuldata in a case when we just created it.

Sponsored by:	Google SoC 2006
Submitted by:	rdivacky
Suggested by:	jhb
2006-09-09 16:55:55 +00:00
Alexander Leidinger
bb59e63f8f Change futex lock from mutex to sx. Make futex_get atomic (protected by the
futex lock).

Sponsored by:	Google SoC 2006
Submitted by:	rdivacky
Suggested by:	jhb
2006-09-09 16:25:25 +00:00
Alexander Leidinger
c19ddeda07 - don't wake every sleeper just the first one [1]
- remove debuging printf			[2]

Submitted by:	intron <mag@intron.ac> [1], rdivacky [2]
2006-09-09 13:04:28 +00:00
David Xu
c0ba6c1783 The following functions need not to be reimplemented, reuse 64bit
syscalls instead:
sigqueue, thr_set_name, thr_setscheduler, thr_getscheduler,
thr_setschedparam.
2006-09-09 01:22:13 +00:00
Robert Watson
e482025ebd Regenerate. 2006-09-03 16:24:36 +00:00
Robert Watson
e8a6d7e554 Set freebsd32 system call event identifiers for:
- old truncate, ftruncate
- old getpeername, gethostid, sethostid, getrlimit, setrlimit, killpg.
- old quota, getsockname, getdirentries.
- lgetfh
- old getdomainname, setdomainname
- sysarch, rtprio, __getcwd, jail, sigtimedwait
- extattrctl, extattr_{get,set,delete,list}_{file,fd,link}
- getresgid, getresuid, kqueue, eaccess, nmount, sendfile
- fhstatfs, kldunloadf

Right identifiers for:

- nfssvc

Remove incorrect identifier for:

- __acl_get_file

Compile tested with help of:	sam
Obtained from:	TrustedBSD Project
2006-09-03 16:17:49 +00:00
Robert Watson
8075da7e8b Regenerate. Looks like someone missed doing this previously as more than
just the audit event change appears in the diff.
2006-09-03 13:47:52 +00:00
Robert Watson
1b25e5f3c4 Use AUE_NTP_ADJTIME instead of AUE_ADJTIME for ntp_adjtime().
Obtained from:	TrustedBSD Project
2006-09-03 13:47:24 +00:00
Robert Watson
0ee913128d Remove two hypothetical calls to suser() in ifdef'd (and uncompilable)
svr4 code: this code would call centralized sysctl code that does
these checks also.

MFC after:	1 week
Obtained from:	TrustedBSD Project
Sponsored by:	nCircle Network Security, Inc.
2006-09-02 08:18:22 +00:00
Suleiman Souhlal
c67e0cc9e7 FREE -> free
Submitted by:	rdivacky
2006-08-28 13:52:27 +00:00
Alexander Leidinger
835e506190 Add the linux statfs64 call. This allows Tivoli backup to proceed a little
but further on -current (still not successful, but a step into the right
direction).

Sponsored by:	Google SoC 2006
Submitted by:	rdivacky
Tested by:	Paul Mather <paul@gromit.dlib.vt.edu>
2006-08-27 08:56:54 +00:00
Alexander Leidinger
84ed9f91d8 Correct the number of retries in a futex_wake() call.
Sponsored by:	Google SoC 2006
Submitted by:	rdivacky
2006-08-26 10:36:16 +00:00
Robert Watson
3e8df637c0 Don't call suser_cred() directly from linux_sethostname(), as it just
wraps userland_sysctl(), which performs necessary privilege checks as
part of its normal operation.

MFC after:	1 week
2006-08-25 11:02:42 +00:00
Alexander Leidinger
1a28c0df09 Sync the MI parts for amd64 with i386 and remove the corresponding special
handling for amd64 in the common code. The MD parts for amd64 are still
outstanding, but at least this fixes some panics on amd64.

Sponsored by:	Google SoC 2006
Submitted by:	rdivacky
Tested by:	bsam
2006-08-20 13:50:27 +00:00
Alexander Leidinger
29ddc19bbf Get rid of some nested includes.
Sponsored by:	Google SoC 2006
Submitted by:	rdivacky
Noticed by:	jhb
2006-08-19 15:13:01 +00:00
Suleiman Souhlal
5342db0872 MALLOC -> malloc and FREE -> free
Submitted by:	rdivacky
Pointed out by:	jhb
2006-08-19 11:54:19 +00:00
Suleiman Souhlal
b273d5aa72 ifdef DEBUG a printf
Submitted by:	rdivacky
2006-08-19 11:07:22 +00:00
Warner Losh
1a3c917f9d while (0); -> while (0) in multi-line macros 2006-08-17 22:50:33 +00:00
Alexander Leidinger
590e3a06e8 - disable some more code when osrelease=2.4.2
- protect td->td_proc->p_pid with the proc lock in linux_getpid
  in the amd64 (= non i386) case [1]

Sponsored by:	Google SoC 2006
Submitted by:	rdivacky
Noticed by:	netchild [1]
2006-08-17 21:21:30 +00:00
Alexander Leidinger
94cb2ecf79 Move some stuff into headers where they belong.
Sponsored by:	Google SoC 2006
Submitted by:	rdivacky
Noticed by:	jhb, ssouhlal
2006-08-17 21:06:48 +00:00
Alexander Leidinger
9b0bcbfbda Fix the DEBUG build:
- linux_emul.c [1]
 - linux_futex.c [2]

Sponsored by:	Google SoC 2006	[1]
Submitted by:	rdivacky	[1]
		netchild	[2]
2006-08-17 09:50:30 +00:00
Peter Wemm
bad9a7a5f9 Grab two syscall numbers. One is used to emulate functionality that linux
has in its procfs (do a readlink of /proc/self/fd/<nn> to find the pathname
that corresponds to a given file descriptor).  Valgrind-3.x needs this
functionality.  This is a placeholder only at this time.
2006-08-16 22:32:50 +00:00
Alexander Leidinger
0eef2f8a4e Style fixes to comments.
Sponsored by:	Google SoC 2006
Submitted by:	rdivacky
Noticed by:	jhb, ssouhlal
2006-08-16 18:54:51 +00:00
Jung-uk Kim
a88d050dfc Include sys/limits.h for INT_MAX. freebsd32_proto.h 1.58 does not include
sys/umtx.h any more and previously it was included from there.
2006-08-16 00:02:36 +00:00
John Baldwin
f8f1f7fb85 Regen to propogate <prefix>_AUE_<mumble> changes as well as the earlier
systrace changes.
2006-08-15 17:37:01 +00:00
John Baldwin
df78f6d313 - Remove unused sysvec variables from various syscalls.conf.
- Send the systrace_args files for all the compat ABIs to /dev/null for
  now.  Right now makesyscalls.sh generates a file with a hardcoded
  function name, so it wouldn't work for any of the ABIs anyway.  Probably
  the function name should be configurable via a 'systracename' variable
  and the functions should be stored in a function pointer in the sysvec
  structure.
2006-08-15 17:25:55 +00:00
Alexander Leidinger
a43eeaabe4 Disable some parts of the code on amd64 for now to prevent a panic. A better
fix will come later.

Sponsored by:	Google SoC 2006
Submitted by:	rdivacky
2006-08-15 15:15:17 +00:00
Alexander Leidinger
9b44bfc556 Add the linux 2.6.x stuff (not used by default!):
- TLS - complete
 - pid/tid mangling - complete
 - thread area - complete
 - futexes - complete with issues
 - clone() extension - complete with some possible minor issues
 - mq*/timer*/clock* stuff - complete but untested and the mq* stuff is
   disabled when not build as part of the kernel with native FreeBSD mq*
   support (module support for this will come later)

Tested with:
 - linux-firefox - works, tested
 - linux-opera - works, tested
 - linux-realplay - doesnt work, issue with futexes
 - linux-skype - doesnt work, issue with futexes
 - linux-rt2-demo - works, tested
 - linux-acroread - doesnt work, unknown reason (coredump) and sometimes
   issue with futexes
 - various unix utilities in linux-base-gentoo3 and linux-base-fc4:
   everything tried worked

On amd64 not everything is supported like on i386, the catchup is planned for
later when the remaining bugs in the new functions are fixed.

To test this new stuff, you have to run
	sysctl compat.linux.osrelease=2.6.16
to switch back use
	sysctl compat.linux.osrelease=2.4.2

Don't switch while running a linux program, strange things may or may not
happen.

Sponsored by:			Google SoC 2006
Submitted by:			rdivacky
Some suggestions/help by:	jhb, kib, manu@NetBSD.org, netchild
2006-08-15 12:54:30 +00:00
Alexander Leidinger
ad2056f2c4 Add some new files needed for linux 2.6.x compatibility.
Please don't style(9) the NetBSD code, we want to stay in sync. Not imported
on a vendor branch since we need local changes.

Sponsored by:	Google SoC 2006
Submitted by:	rdivacky
With help from:	manu@NetBSD.org
Obtained from:	NetBSD (linux_{futex,time}.*)
2006-08-15 12:20:59 +00:00
Konstantin Belousov
1565bf54af Lock the vnode around the call to VOP_GETATTR. Move the locked code
and vn_fullpath (that call malloc(..., M_WAITOK)) from under the
vm object lock, since sleep is not allowed while holding the mutex.

Being there, wrap VOP_GETATTR call with conditional Giant aquire.
Currently this is (almost) noop because pseudofs is Giant-locked.

Tested by:	kris
Approved by:	pjd (mentor)
MFC after:	2 weeks
2006-08-08 12:29:26 +00:00
Robert Watson
3d0685834f With socket code no longer in svr4_stream.c, MAC includes are no longer
required, so GC.
2006-08-05 22:04:21 +00:00
Brooks Davis
012759b743 Use TAILQ_EMPTY instead of checking if TAILQ_FIRST is NULL. 2006-08-04 21:15:09 +00:00
John Baldwin
91ce2694d1 Regen for MPSAFE flag removal. 2006-07-28 19:08:37 +00:00
John Baldwin
af5bf12239 Now that all system calls are MPSAFE, retire the SYF_MPSAFE flag used to
mark system calls as being MPSAFE:
- Stop conditionally acquiring Giant around system call invocations.
- Remove all of the 'M' prefixes from the master system call files.
- Remove support for the 'M' prefix from the script that generates the
  syscall-related files from the master system call files.
- Don't explicitly set SYF_MPSAFE when registering nfssvc.
2006-07-28 19:05:28 +00:00
John Baldwin
e0b4add8d8 Various fixes to comments in the syscall master files including removing
cruft from the audit import and adding mention of COMPAT4 to freebsd32.
2006-07-28 18:55:18 +00:00
John Baldwin
78371ec202 Regen. 2006-07-28 16:56:44 +00:00
John Baldwin
95e7d19dfa - Explicitly lock Giant to protect the fields in the svr4_strm structure
except for s_family (which is read-only once after it is set when the
  structure is created).
- Mark svr4_sys_ioctl(), svr4_sys_getmsg(), and svr4_sys_putmsg() MPSAFE.
2006-07-28 16:56:17 +00:00
John Baldwin
f30e89ced3 Fix a file descriptor race I reintroduced when I split accept1() up into
kern_accept() and accept1().  If another thread closed the new file
descriptor and the first thread later got an error trying to copyout the
socket address, then it would attempt to close the wrong file object.  To
fix, add a struct file ** argument to kern_accept().  If it is non-NULL,
then on success kern_accept() will store a pointer to the new file object
there and not release any of the references.  It is up to the calling code
to drop the references appropriately (including a call to fdclose() in case
of error to safely handle the aforementioned race).  While I'm at it, go
ahead and fix the svr4 streams code to not leak the accept fd if it gets an
error trying to copyout the streams structures.
2006-07-27 19:54:41 +00:00
John Baldwin
3ce72960e8 Regen. 2006-07-21 20:41:33 +00:00
John Baldwin
e0569c0798 Clean up the svr4 socket cache and streams code some to make it more easily
locked.
- Move all the svr4 socket cache code into svr4_socket.c, specifically
  move svr4_delete_socket() over from streams.c.  Make the socket cache
  entry structure and svr4_head private to svr4_socket.c as a result.
- Add a mutex to protect the svr4 socket cache.
- Change svr4_find_socket() to copy the sockaddr_un struct into a
  caller-supplied sockaddr_un rather than giving the caller a pointer to
  our internal one.  This removes the one case where code outside of
  svr4_socket.c could access data in the cache.
- Add an eventhandler for process_exit and process_exec to purge the cache
  of any entries for the exiting or execing process.
- Add methods to init and destroy the socket cache and call them from the
  svr4 ABI module's event handler.
- Conditionally grab Giant around socreate() in streamsopen().
- Use fdclose() instead of inlining it in streamsopen() when handling
  socreate() failure.
- Only allocate a stream structure and attach it to a socket in
  streamsopen().  Previously, if a svr4 program performed a stream
  operation on an arbitrary socket not opened via the streams device,
  we would attach streams state data to it and change f_ops of the
  associated struct file while it was in use.  The latter was especially
  not safe, and if a program wants a stream object it should open it via
  the streams device anyway.
- Don't bother locking so_emuldata in the streams code now that we only
  touch it right after creating a socket (in streamsopen()) or when
  tearing it down when the file is closed.
- Remove D_NEEDGIANT from the streams device as it is no longer needed.
2006-07-21 20:40:13 +00:00
John Baldwin
52d639a953 Add conditional VFS Giant locking to svr4_sys_fchroot() and mark it MPSAFE.
Also, call change_dir() instead of doing part of it inline (this now adds
a mac_check_vnode_chdir() call) to match fchdir() and call
mac_check_vnode_chroot() to match chroot().  Also, use the change_root()
function to do the actual change root to match chroot().

Reviewed by:	rwatson
2006-07-21 20:28:56 +00:00
John Baldwin
b4c63329d5 - Pass the MPSAFE flag to namei() in linux_uselib() and handle conditional
Giant VFS locking in that function.
- Remove bogus code to handle the case where namei() returns success but a
  NULL vnode pointer.
- Note that this code duplicates exec_check_permissions() and annotate
  where it differs.
- Hold the vnode lock longer to protect the write to set VV_TEXT in
  v_vflag.
- Mark linux_uselib() MPSAFE.

Reviewed by:	rwatson
2006-07-21 20:22:13 +00:00
John Baldwin
7cf6a457ea Regen. 2006-07-19 19:03:21 +00:00
John Baldwin
a1ca3e0ba7 Add conditional VFS Giant locking to svr4_sys_resolvepath() and mark it
MPSAFE.
2006-07-19 19:03:03 +00:00
John Baldwin
a3616b117c Make svr4_sys_waitsys() a lot less ugly and mark it MPSAFE.
- If the WNOWAIT flag isn't specified and either of WEXITED or WTRAPPED is
  set, then just call kern_wait() and let it do all the work.  This means
  that this function no longer has to duplicate the work to teardown
  zombies that is done in kern_wait().  Instead, if the above conditions
  aren't true, then it uses a simpler loop to implement WNOWAIT and/or
  tracing for only stopped or continued processes.  This function still
  has to duplicate code from kern_wait() for the latter two cases, but
  those are much simpler.
- Sync the code to handle the WCONTINUED and WSTOPPED cases with the
  equivalent code in kern_wait().
- Fix several places that would return with the proctree lock still held.
- Lock the current process to prevent lost wakeup races when blocking.
2006-07-19 19:01:10 +00:00
John Baldwin
b33887ea31 Don't free the sockaddr in kern_bind() and kern_connect() as not all
callers pass a sockaddr allocated via malloc() from M_SONAME anymore.
Instead, free it in the callers when necessary.
2006-07-19 18:28:52 +00:00
John Baldwin
a02f5c6204 Initialize svr4_head during MOD_LOAD rather than on demand. 2006-07-19 18:26:09 +00:00
David Xu
2df96d8e02 sync with master. 2006-07-14 01:57:09 +00:00
John Baldwin
90aff9de2d Regen. 2006-07-11 20:55:23 +00:00
John Baldwin
be5747d5b5 - Add conditional VFS Giant locking to getdents_common() (linux ABIs),
ibcs2_getdents(), ibcs2_read(), ogetdirentries(), svr4_sys_getdents(),
  and svr4_sys_getdents64() similar to that in getdirentries().
- Mark ibcs2_getdents(), ibcs2_read(), linux_getdents(), linux_getdents64(),
  linux_readdir(), ogetdirentries(), svr4_sys_getdents(), and
  svr4_sys_getdents64() MPSAFE.
2006-07-11 20:52:08 +00:00
John Baldwin
c870740e09 - Split out kern_accept(), kern_getpeername(), and kern_getsockname() for
use by ABI emulators.
- Alter the interface of kern_recvit() somewhat.  Specifically, go ahead
  and hard code UIO_USERSPACE in the uio as that's what all the callers
  specify.  In place, add a new uioseg to indicate what type of pointer
  is in mp->msg_name.  Previously it was always a userland address, but
  ABI emulators may pass in kernel-side sockaddrs.  Also, remove the
  namelenp field and instead require the two places that used it to
  explicitly copy mp->msg_namelen out to userland.
- Use the patched kern_recvit() to replace svr4_recvit() and the stock
  kern_sendit() to replace svr4_sendit().
- Use kern_bind() instead of stackgap use in ti_bind().
- Use kern_getpeername() and kern_getsockname() instead of stackgap in
  svr4_stream_ti_ioctl().
- Use kern_connect() instead of stackgap in svr4_do_putmsg().
- Use kern_getpeername() and kern_accept() instead of stackgap in
  svr4_do_getmsg().
- Retire the stackgap from SVR4 compat as it is no longer used.
2006-07-10 21:38:17 +00:00
John Baldwin
acdd09f944 Unexpand PTRIN() in several places and fix one instance where 0 was being
used instead of NULL.
2006-07-10 19:37:43 +00:00
John Baldwin
c1cccebe8b Add a kern_close() so that the ABIs can close a file descriptor w/o having
to populate a close_args struct and change some of the places that do.
2006-07-08 20:03:39 +00:00
John Baldwin
b1ee5b654d Rework kern_semctl a bit to always assume the UIO_SYSSPACE case. This
mostly consists of pushing a few copyin's and copyout's up into
__semctl() as all the other callers were already doing the UIO_SYSSPACE
case.  This also changes kern_semctl() to set the return value in a passed
in pointer to a register_t rather than td->td_retval[0] directly so that
callers can only set td->td_retval[0] if all the various copyout's succeed.

As a result of these changes, kern_semctl() no longer does copyin/copyout
(except for GETALL/SETALL) so simplify the locking to acquire the semakptr
mutex before the MAC check and hold it all the way until the end of the
big switch statement.  The GETALL/SETALL cases have to temporarily drop it
while they do copyin/malloc and copyout.  Also, simplify the SETALL case to
remove handling for a non-existent race condition.
2006-07-08 19:51:38 +00:00
John Baldwin
ad6d226d43 - Protect the list of linux ioctl handlers with an sx lock.
- Hold Giant while calling linux ioctl handlers for now as they aren't all
  known to be MPSAFE yet.
- Mark linux_ioctl() MPSAFE.
2006-07-06 21:42:36 +00:00
John Baldwin
d699b1ce00 Don't try to copyin extra data for IPC_RMID requests to msgctl() or
shmctl().  None of the other ABI's do this (including the native FreeBSD
ABI), and uselessly trying to do a copyin() can actually result in a
bogus EFAULT if the a process specifies NULL for the optional argument
(which is what they should do in this case).
2006-07-06 21:38:24 +00:00
Mark Murray
93c005929f Housekeeping. Update for maintainers who have handed in their commit bits
or (in my case) no longer feel that oversight is necessary.
2006-07-01 10:51:55 +00:00
Alexander Leidinger
550be19e16 Improve linprovfs to provide/fix the
- process state (idle, sleeping, running, ...) [1]
 - the process group ID of the process which owns the connected tty
 - some page fault stats
 - time spend in kernel/userland
 - priority/nice value
 - starttime [1]
 - memory/swap stats
 - scheduling policy

Additionally add some new fields and correct some not filled out ones.

This brings us down to 15 dummy fields.

The fields marked with [1] are needed to get Oracle 10 running. The starttime
field is not completely right, since it displays the _same_ starttime for
_every_ process, but at least it is not 0 and Oracle accepts this.

This is a RELENG_x_y candidate.

Noticed by:	Dmitry Ganenko <dima@apk-inform.com> [1]
Reviewed by:	des, rdivacky
MFC after:	1 week
2006-06-27 20:11:58 +00:00
John Baldwin
cec34dbf79 Regen. 2006-06-27 18:32:16 +00:00
John Baldwin
bb639715d4 Use kern_shmctl() in svr4_sys_shmctl() and drop use of the stackgap. Mark
svr4_sys_shmctl() MPSAFE.
2006-06-27 18:31:36 +00:00
John Baldwin
4db580972e Axe the stackgap macros as the Linux ABIs no longer use the stackgap. 2006-06-27 18:30:49 +00:00
John Baldwin
49d409a108 - Add a kern_semctl() helper function for __semctl(). It accepts a pointer
to a copied-in copy of the 'union semun' and a uioseg to indicate which
  memory space the 'buf' pointer of the union points to.  This is then used
  in linux_semctl() and svr4_sys_semctl() to eliminate use of the stackgap.
- Mark linux_ipc() and svr4_sys_semsys() MPSAFE.
2006-06-27 18:28:50 +00:00
John Baldwin
0cceebeeb2 Regen. 2006-06-27 14:47:08 +00:00
John Baldwin
597d608f86 - Expand the scope of Giant some in mount(2) to protect the vfsp structure
from going away.  mount(2) is now MPSAFE.
- Expand the scope of Giant some in unmount(2) to protect the mp structure
  (or rather, to handle concurrent unmount races) from going away.
  umount(2) is now MPSAFE, as well as linux_umount() and linux_oldumount().
- nmount(2) and linux_mount() were already MPSAFE.
2006-06-27 14:46:31 +00:00
John Baldwin
b820787fb3 Regen. 2006-06-26 18:37:36 +00:00
John Baldwin
b0f6106af9 Change svr4_sys_break() to just call obreak() and mark it MPSAFE.
Not objected to by:	alc
2006-06-26 18:36:57 +00:00
John Baldwin
04a8728231 - Sync with master: rmdir(), mkdir(), and extattr_*() are all MPSAFE.
- freebsd32_utimes() is MPSAFE.
2006-06-26 18:35:57 +00:00
Alexander Leidinger
555f86b8b6 The linux times syscall can be called with a NULL pointer, so keep cool
and don't panic.

This fix is different from the patch submitted as it not only prevents
a NULL-pointer dereference, but also skips some work in this case.

Noticed by:	Dmitry Ganenko <dima@apk-inform.com>
Reviewed by:	rdivacky (the original version as in emulation@)
MFC after:	1 week
Security:	This is a RELENG_x_y candidate (local DoS).
Go ahead by:	secteam (cperciva)
2006-06-23 18:49:38 +00:00
Diomidis Spinellis
462da4d616 Move conditional preprocessing out of the SYSCTL_ADD_STRING macro
invocation.  Per C99 6.10.3 paragraph 11 preprocessing directives
appearing inside macro arguments yield undefined behavior.
2006-06-22 13:11:36 +00:00
John Baldwin
62d615d508 Conditionally acquire Giant around VFS operations. 2006-06-20 21:31:38 +00:00
John Baldwin
932151064a - Add a new linker_file_foreach() function that walks the list of linker
file objects calling a user-specified predicate function on each object.
  The iteration terminates either when the entire list has been iterated
  over or the predicate function returns a non-zero value.
  linker_file_foreach() returns the value returned by the last invocation
  of the predicate function.  It also accepts a void * context pointer that
  is passed to the predicate function as well.  Using an iterator function
  avoids exposing linker internals to the rest of the kernel making locking
  simpler.
- Use linker_file_foreach() instead of walking the list of linker files
  manually to lookup ndis files in ndis(4).
- Use linker_file_foreach() to implement linker_hwpmc_list_objects().
2006-06-20 20:37:17 +00:00
John Baldwin
a6e25132d4 Forcefully turn off GPROF in this file if it is enabled as GPROF's
attempt to use a macro for 'ret' doesn't play well with the wrappers
trying to implement 'Pascal-style' calling conventions.
2006-06-12 20:35:59 +00:00
Dag-Erling Smørgrav
5ef57544fc Add the model name, obtained from the hw.model sysctl variable.
MFC after:	3 weeks
2006-06-12 18:14:49 +00:00
Paul Saab
e8b62ee79e Do not copy out the iovec in the 32bit recvmsg call since soreceive
calls uiomove directly.

Reviewed by:	ups
MFC after:	1 week
2006-06-08 18:33:08 +00:00
Dag-Erling Smørgrav
b19bfd3db5 As far as I can tell, the correct CPU family for amd64 (which Linux calls
x86_64) is 15, not 6.

MFC after:	3 weeks
2006-06-02 13:01:25 +00:00
Doug Ambrisko
edb75eca27 Fix file leaking in translate_path_major_minor. 2006-05-16 17:57:00 +00:00
Poul-Henning Kamp
c40da00ca3 Since DELAY() was moved, most <machine/clock.h> #includes have been
unnecessary.
2006-05-16 14:37:58 +00:00
John Baldwin
73dbd3da73 Remove various bits of conditional Alpha code and fixup a few comments. 2006-05-12 05:04:46 +00:00
Doug Ambrisko
0b1c233427 Remove the dependency on procfs since it isn't used.
Noticed by:	des
2006-05-11 15:27:58 +00:00
Alexander Leidinger
01e0ffbae8 Now that we don't have a linuxolator on alpha anymore:
- unifdef __alpha__
 - revert rev. 1.66 of linux_socket.c
2006-05-10 20:38:16 +00:00
Alexander Leidinger
17138b619c Implement rt_sigpending in the linuxolator.
PR:		92671
Submitted by:	Markus Niemist"o <markus.niemisto@gmx.net>
2006-05-10 18:17:29 +00:00
Doug Ambrisko
32397ce071 Add in linsysfs. A linux 2.6 like sys filesystem to pacify the Linux
LSI MegaRAID SAS utility.

Sponsored by:		IronPort Systems
Man page help from:	brueffer
2006-05-09 22:27:01 +00:00
Doug Ambrisko
03487601c2 Fix the the duplicate cut-n-paste in linux_fstat64 pointed out by
Alexander Leidinger.  I forget to fix it in this version.
2006-05-05 16:17:59 +00:00
Doug Ambrisko
060e488247 Enhance the Linux emulation layer to make MegaRAID SAS managements tool happy.
Add back in a scheme to emulate old type major/minor numbers via hooks into
stat, linprocfs to return major/minors that Linux app's expect.  Currently
only /dev/null is always registered.  Drivers can register via the Linux
type shim similar to the ioctl shim but by using
linux_device_register_handler/linux_device_unregister_handler functions.
The structure is:

    struct linux_device_handler {
        char    *bsd_driver_name;
        char    *linux_driver_name;
        char    *bsd_device_name;
        char    *linux_device_name;
        int     linux_major;
        int     linux_minor;
        int     linux_char_device;
    };

Linprocfs uses this to display the major number of the driver.  The
soon to be available linsysfs will use it to fill in the driver name.
Linux_stat uses it to translate the major/minor into Linux type values.

Note major numbers are dynamically assigned via passing in a -1 for
the major number so we don't need to keep track of them.

This is somewhat needed due to us switching to our devfs.  MegaCli
will not run until I add in the linsysfs and mfi Linux compat changes.

Sponsored by:	IronPort Systems
2006-05-05 16:10:45 +00:00
Robert Watson
f7f45ac8e2 Annotate uses of fgetsock() with indications that they should rely
on their existing file descriptor references to sockets, rather than
use fgetsock() to retrieve a direct socket reference.

MFC after:	3 months
2006-04-01 15:25:01 +00:00
Paul Saab
74f7258fb7 regen for 32bit System V shared memory 2006-03-30 07:43:01 +00:00
Paul Saab
fbb273bc05 Properly support for FreeBSD 4 32bit System V shared memory.
Submitted by:	peter
Obtained from:	Yahoo!
MFC after:	3 weeks
2006-03-30 07:42:32 +00:00
Tai-hwa Liang
d9d46ed258 Unbreaking build by removing a now unused variable. 2006-03-27 23:27:11 +00:00
John Baldwin
b77619bd7f Use td_ucred rather than p_ucred to avoid panics and general unhappiness.
Pointy hat to:	netchild
2006-03-27 19:16:31 +00:00
Alexander Leidinger
1daa386fcf Fix the LINT build on alpha:
- rename some file local structure definitions, the names clash with
  autogenerated names
- on !alpha add some compatibility defines for those renamed structures
- make some functions globally visible on alpha
2006-03-21 21:56:04 +00:00
Alexander Leidinger
61da9d97fb Fix tinderbox on alpha.
Tested by:	cross-compile
2006-03-20 19:46:56 +00:00
Ruslan Ermilov
aefce619cf Unbreak COMPAT_LINUX32 option support on amd64.
Broken by:	netchild
2006-03-19 11:10:33 +00:00
Alexander Leidinger
d4a3f5ddb6 Fixup some problems in my previous commit (COMPAT_43).
Pointyhat to:	netchild
2006-03-18 20:47:36 +00:00
Alexander Leidinger
5c8919adf4 Get rid of the need of COMPAT_43 in the linuxolator.
Submitted by:	Divacky Roman <xdivac02@stud.fit.vutbr.cz>
Obtained from:	DragonFly (some parts)
2006-03-18 18:20:17 +00:00
Stephan Uphoff
68ff3c2445 Fix exec_map resource leaks.
Tested by: kris@
2006-03-08 20:21:54 +00:00
Paul Saab
6308f39da8 use strlcpy in cvtstatfs and copy_statfs instead of bcopy to ensure
the copied strings are properly terminated.

bzero the statfs32 struct in copy_statfs.
2006-03-04 00:09:09 +00:00
Paul Saab
26e4fb05dc regen for 32bit sendfile 2006-02-28 19:39:52 +00:00
Paul Saab
fa545f434c Fix 32bit sendfile by implementing kern_sendfile so that it takes
the header and trailers as iovec arguments instead of copying them
in inside of sendfile.

Reviewed by:	jhb
MFC after:	3 weeks
2006-02-28 19:39:18 +00:00
John Baldwin
8917b8d28c - Always call exec_free_args() in kern_execve() instead of doing it in all
the callers if the exec either succeeds or fails early.
- Move the code to call exit1() if the exec fails after the vmspace is
  gone to the bottom of kern_execve() to cut down on some code duplication.
2006-02-06 22:06:54 +00:00
Jeff Roberson
c4be19469a - Remove ifdef disabled code that doesn't have a chance of working anymore. 2006-02-06 10:10:42 +00:00
Robert Watson
ef572cf5bb Regenerate. 2006-02-04 13:29:09 +00:00
Robert Watson
2b8d08f814 Audit FreeBSD 32-bit system calls on 64-bit FreeBSD systems.
Obtained from:	TrustedBSD Project
2006-02-04 13:28:55 +00:00
Jeff Roberson
d6791f7615 - vn_lock with LK_RETRY can not return an error. The code that handled this
case was not necessary.

Sponsored by:	Isilon Systems, Inc.
2006-01-30 08:22:56 +00:00
Olivier Houchard
d425dbec89 Fix a typo : deivce => device
Spotted by:	rwatson
2006-01-26 21:48:50 +00:00
Olivier Houchard
e83d253beb Linux compat bits needed to make linux programs use the new ptys :
linux_ioctl.[ch] : Implement LINUX_TIOCGPTN, which returns the pty number
linux_stats.c :
	- Return the magic number for devfs.
	- In various stats()-related functions, check that we're stating a
file in /dev/pts, and if so, change the st_rdev field to match what linux
expects to be there for a slave pty device. The glibc checks for this, and
their openpty() fails if it is no correct.
2006-01-26 01:32:46 +00:00
Doug Ambrisko
f06b864361 Fix the build. When I added the lutimes the futimes definitions
went away in the generated files?  This didn't happen on my amd64
test machine but did when I committed it on my other i386 machine.
I need to figure this out since a regen on the amd64 doesn't fix it
now.  For now make the build work again.  Matt caught this before
my local mirror caught up.
2006-01-20 20:51:27 +00:00
Doug Ambrisko
cac2fa646c Regen. 2006-01-20 16:22:37 +00:00
Doug Ambrisko
08a3081da8 Add 32bit version of lutimes so untar doesn't mess up sym-links on amd64. 2006-01-20 16:22:06 +00:00
Tom Rhodes
0e36e11d57 Cast tv_sec to intmax_t and print with %jd in some ifdef'ed code. 2005-12-28 07:08:54 +00:00
Gleb Smirnoff
3c6160327d Add \n to log() message.
Submitted by:	Stanislaw Halik <weirdo tehran.lain.pl>
2005-12-27 00:17:11 +00:00
Maxim Sobolev
900b28f9f6 Remove kern.elf32.can_exec_dyn sysctl. Instead extend Brandinfo structure
with flags bitfield and set BI_CAN_EXEC_DYN flag for all brands that usually
allow executing elf dynamic binaries (aka shared libraries). When it is
requested to execute ET_DYN elf image check if this flag is on after we
know the elf brand allowing execution if so.

PR:		kern/87615
Submitted by:	Marcin Koziej <creep@desk.pl>
2005-12-26 21:23:57 +00:00
Ruslan Ermilov
bebb4536ce Regen. 2005-12-23 20:06:50 +00:00
Ruslan Ermilov
c647318411 Fix build. 2005-12-23 20:06:14 +00:00
Poul-Henning Kamp
25f6e35a05 Regenerate sysent with new abort2 system call.
Implement abort2(const char *reason, int narg, void **args);

Submitted by:	"Wojciech A. Koszek" <dunstan@freebsd.czest.pl>
2005-12-23 11:58:42 +00:00
Poul-Henning Kamp
fe322ece24 Add missing 455-462 syscalls as unimplemented 2005-12-23 11:56:39 +00:00
Poul-Henning Kamp
5a56b437ec Add abort2() systemcall. 2005-12-23 11:54:11 +00:00
John Baldwin
410d857972 Remove linux_mib_destroy() (which I actually added in between 5.0 and 5.1)
which existed to cleanup the linux_osname mutex.  Now that MTX_SYSINIT()
has grown a SYSUNINIT to destroy mutexes on unload, the extra destroy here
was redundant and resulted in panics in debug kernels.

MFC after:	1 week
Reported by:	Goran Gajic ggajic at afrodita dot rcub dot bg dot ac dot yu
2005-12-15 16:30:41 +00:00
Xin LI
1278dd6847 In Linux, kernel parameters passed to ioctl are by value, while in FreeBSD
they are passed by reference.  Handle the difference within the
linux_ioctl_termio on the LINUX_TCFLSH path.

Submitted by:	Jaroslav Drzik <jaro_AT_coop-voz_dot_sk>
2005-12-13 15:32:52 +00:00
Max Laier
2694019753 Fix calculation of meminfo's swaptotal and swapfree on at least amd64.
MFC after:	3 days
2005-12-11 21:37:42 +00:00
Doug Ambrisko
204634a652 Regen for futimes. 2005-12-08 22:15:09 +00:00
Doug Ambrisko
8e7604db06 Add 32bit version of futimes so untar doesn't result in bad dates
(Jan 1, 1970) when run on amd64.

Reviewed by:	ps
2005-12-08 22:14:25 +00:00
Gleb Smirnoff
7a14354549 Suppress logging about unimplemented syscalls to one time per process. This
prevents hard flood of the system console.

Reviewed by:	bde
2005-12-08 13:33:57 +00:00
Peter Wemm
79880f7327 Catch up to the system siginfo changes. Use a union for the ia32 layout
of siginfo just like the system one.  There are now two fields to copy
instead of one.
2005-12-06 23:06:29 +00:00
Ruslan Ermilov
f4e9888107 Fix -Wundef. 2005-12-04 02:12:43 +00:00
Craig Rodrigues
2207c7648e Remove MNT_NODEV mount option. In RELENG_6, MNT_NODEV was a no-op.
The presence of MNT_NODEV was confusing the am-utils autoconf scripts.

PR:	conf/79715
2005-11-29 00:28:17 +00:00
Bill Paul
f1b78ee016 Somehow memmove() got mapped to memset() in the patch table. Create a
real memmove() implementation and use that instead.
2005-11-23 17:10:46 +00:00
Bill Paul
78edd540cf Correct the API for Windows interupt handling a little. The prototype
for a Windows ISR is 'BOOLEAN isrfunc(KINTERRUPT *, void *)' meaning
the ISR get a pointer to the interrupt object and a context pointer,
and returns TRUE if the ISR determines the interrupt was really generated
by the associated device, or FALSE if not.

I had mistakenly used 'void isrfunc(void *)' instead. It happens the
only thing this affects is the internal ndis_intr() ISR in subr_ndis.c,
but it should be fixed just in case we ever need to register a real
Windows ISR vi IoConnectInterrupt().

For NDIS miniports that provide a MiniportISR() method, the 'is_our_intr'
value returned by the method serves as the return value from ndis_isr(),
and 'call_isr' is used to decide whether or not to schedule the interrupt
handler via DPC. For drivers that only supply MiniportEnableInterrupt()
and MiniportDisableInterrupt() methods, call_isr is always TRUE and
is_our_intr is always FALSE.

In the end, there should be no functional changes, except that now
ntoskrnl_intr() can terminate early once it finds the ISR that wants
to service the interrupt.
2005-11-20 01:29:29 +00:00
Ruslan Ermilov
f95871b97b Unlike the rest of the world, NDIS code can access "struct
ifnet" before is has been fully initialized by if_attach().
Account for that to avoid a null pointer dereference.
2005-11-14 18:19:57 +00:00
Bill Paul
86a8393963 Restore backwards source compatibility with 6.x and 5.x. 2005-11-13 21:36:48 +00:00
Ruslan Ermilov
4a0d6638b3 - Store pointer to the link-level address right in "struct ifnet"
rather than in ifindex_table[]; all (except one) accesses are
  through ifp anyway.  IF_LLADDR() works faster, and all (except
  one) ifaddr_byindex() users were converted to use ifp->if_addr.

- Stop storing a (pointer to) Ethernet address in "struct arpcom",
  and drop the IFP2ENADDR() macro; all users have been converted
  to use IF_LLADDR() instead.
2005-11-11 16:04:59 +00:00
Bill Paul
e73e17729b Implement RtlZeroMemory() and RtlCopyMemory(). This seems to allow
the Broadcom Win64 wireless driver for the BCM4318 to work on amd64.
2005-11-10 02:22:55 +00:00
Bill Paul
65983e40e1 Change the definition for EXT_NDIS to EXT_NET_DRV. Since the latest
mbuf code changes, MEXTADD() can be used to add an external buffer with
arbitrary type, but mb_ext_free() won't let you free it.
2005-11-07 16:57:14 +00:00
Bill Paul
b5b548a6bc The latest version of the Intel 2200BG/2915ABG driver (9.0.0.3-9) from
Intel's web site requires some minor tweaks to get it to work:

- The driver seems to have been released with full WMI tracing enabled,
  and makes references to some WMI APIs, namely IoWMIRegistrationControl(),
  WmiQueryTraceInformation() and WmiTraceMessage(). Only the first
  one is ever called (during intialization). These have been implemented
  as do-nothing stubs for now. Also added a definition for STATUS_NOT_FOUND
  to ntoskrnl_var.h, which is used as a return code for one of the WMI
  routines.

- The driver references KeRaiseIrqlToDpcLevel() and KeLowerIrql()
  (the latter as a function, which is unusual because normally
  KeLowerIrql() is a macro in the Windows DDK that calls KfLowewIrql()).
  I'm not sure why these are being called since they're not really
  part of WDM. Presumeably they're being used for backwards
  compatibility with old versions of Windows. These have been
  implemented in subr_hal.c. (Note that they're _stdcall routines
  instead of _fastcall.)

- When querying the OID_802_11_BSSID_LIST OID to get a BSSID list,
  you don't know ahead of time how many networks the NIC has found
  during scanning, so you're allowed to pass 0 as the list length.
  This should cause the driver to return an 'insufficient resources'
  error and set the length to indicate how many bytes are actually
  needed. However for some reason, the Intel driver does not honor
  this convention: if you give it a length of 0, it returns some
  other error and doesn't tell you how much space is really needed.
  To get around this, if using a length of 0 yields anything besides
  the expected error case, we arbitrarily assume a length of 64K.
  This is similar to the hack that wpa_supplicant uses when doing
  a BSSID list query.
2005-11-06 19:38:34 +00:00
Paul Saab
506df56c79 Copy out the number of iovecs in freebsd32_recvmsg, not the length
of a single iovec.
2005-11-06 18:12:43 +00:00
Paul Saab
1471f287e1 Calling setrlimit from 32bit apps could potentially increase certain
limits beyond what should be capiable in a 32bit process, so we
must fixup the limits.

Reviewed by:	jhb
2005-11-02 21:18:07 +00:00
Bill Paul
a91395a9d0 Tests with my dual Opteron system have shown that it's possible
for code to start out on one CPU when thunking into Windows
mode in ctxsw_utow(), and then be pre-empted and migrated to another
CPU before thunking back to UNIX mode in ctxsw_wtou(). This is
bad, because then we can end up looking at the wrong 'thread environment
block' when trying to come back to UNIX mode. To avoid this, we now
pin ourselves to the current CPU when thunking into Windows code.

Few other cleanups, since I'm here:

- Get rid of the ndis_isr(), ndis_enable_interrupt() and
  ndis_disable_interrupt() wrappers from kern_ndis.c and just invoke
  the miniport's methods directly in the interrupt handling routines
  in subr_ndis.c. We may as well lose the function call overhead,
  since we don't need to export these things outside of ndis.ko
  now anyway.

- Remove call to ndis_enable_interrupt() from ndis_init() in if_ndis.c.
  We don't need to do it there anyway (the miniport init routine handles
  it, if needed).

- Fix the logic in NdisWriteErrorLogEntry() a little.

- Change some NDIS_STATUS_xxx codes in subr_ntoskrnl.c into STATUS_xxx
  codes.

- Handle kthread_create() failure correctly in PsCreateSystemThread().
2005-11-02 18:01:04 +00:00
Andre Oppermann
34333b16cd Retire MT_HEADER mbuf type and change its users to use MT_DATA.
Having an additional MT_HEADER mbuf type is superfluous and redundant
as nothing depends on it.  It only adds a layer of confusion.  The
distinction between header mbuf's and data mbuf's is solely done
through the m->m_flags M_PKTHDR flag.

Non-native code is not changed in this commit.  For compatibility
MT_HEADER is mapped to MT_DATA.

Sponsored by:	TCP/IP Optimization Fundraise 2005
2005-11-02 13:46:32 +00:00
Bill Paul
fde84c1850 Clean up one remaining 'multiple DPC thread' bogon: only bzero() one
sizeof(kq_queue), not sizeof(kq_queue) * mp_ncpus.
2005-11-01 09:24:35 +00:00
Paul Saab
ecc44de7a2 Reformat socket control messages on input/output for 32bit compatibility
on 64bit systems.

Submitted by:	ps, ups
Reviewed by:	jhb
2005-10-31 21:09:56 +00:00
Peter Wemm
946bca4fcd Regenerate (with the correct #ifdef COMPAT_43 tests now) 2005-10-26 22:21:03 +00:00
Peter Wemm
767dfc44be There is no 'freebsd3_' prefix for COMPAT_43 syscalls. Those are all
bundled under MCOMPAT and have an 'o' prefix.  Adjust as appropriate.
This re-enables compiling without COMPAT_43 again.
2005-10-26 22:19:51 +00:00
Bill Paul
4cf9a535a8 Minor nit: in ntoskrnl_finddev(), only free the 'children' device_t
array if device_find_children() actually returned a non-NULL array pointer.
2005-10-26 20:21:45 +00:00
Bill Paul
51d6d0952b Clean up and apply the fix for PR 83477. The calculation for locating
the start of the section headers has to take into account the fact
that the image_nt_header is really variable sized. It happens that
the existing calculation is correct for _most_ production binaries
produced by the Windows DDK, but if we get a binary with oddball
offsets, the PE loader could crash.

Changes from the supplied patch are:

- We don't really need to use the IMAGE_SIZEOF_NT_HEADER() macro when
  computing how much of the header to return to callers of
  pe_get_optional_header(). While it's important to take the variable
  size of the header into account in other calculations, we never
  actually look at anything outside the non-variable portion of the
  header. This saves callers from having to allocate a variable sized
  buffer off the heap (I purposely tried to avoid using malloc()
  in subr_pe.c to make it easier to compile in both the -D_KERNEL and
  !-D_KERNEL case), and since we're copying into a buffer on the
  stack, we always have to copy the same amount of data or else
  we'll trash the stack something fierce.

- We need <stddef.h> to get offsetof() in the !-D_KERNEL case.

- ndiscvt.c needs the IMAGE_FIRST_SECTION() macro too, since it does
  a little bit of section pre-processing.

PR: kern/83477
2005-10-26 18:46:27 +00:00
Bill Paul
7f3cc43211 Get rid of the timer tracking and reaping code in NdisMInitializeTimer()
and ndis_halt_nic(). It's been disabled for some time anyway, and
it turns out there's a possible deadlock in NdisMInitializeTimer() when
acquiring the miniport block lock to modify the timer list: it's
possible for a driver to call NdisMInitializeTimer() when the miniport
block lock has already been acquired by an earlier piece of code. You
can't acquire the same spinlock twice, so this can deadlock.

Also, implement MmMapIoSpace() and MmUnmapIoSpace(), and make
NdisMMapIoSpace() and NdisMUnmapIoSpace() use them. There are some
drivers that want MmMapIoSpace() and MmUnmapIoSpace() so that they can
map arbitrary register spaces not directly associated with their
device resources. For example, there's an Atheros driver for
a miniPci card (0x168C:0x1014) on the IBM Thinkpad x40 that wants
to map some I/O spaces at 0xF00000 and 0xE00000 which are held by
the acpi0 device. I don't know what it wants these ranges for,
but if it can't map and access them, the MiniportInitialize() method
fails.
2005-10-26 06:52:57 +00:00
Bill Paul
4ba4b2c45c Fix handling of message table messages that got broken when I
converted NdisWriteErrorLogEntry() to use the RtlXXX unicode/ansi
conversion routines.
2005-10-24 05:05:09 +00:00
David E. O'Brien
2f3e5b2f15 Add a 'clean' target. 2005-10-23 23:58:23 +00:00
Paul Saab
90168b92f2 regen 2005-10-23 10:43:39 +00:00
Paul Saab
e7abd4a000 Implement for FreeBSD 3 32 binaries:
sigaction, sigprocmask, sigpending, sigvec, sigblock, sigsetmask,
sigsuspend, sigstack
2005-10-23 10:43:14 +00:00
Bill Paul
a50286e21d Make the multiple DPC threads an option, and create only one by default.
This avoids the need for sched_bind() in the default case so that you
can start up the NDIS subsystem at boot time when only CPU 0 is running.

There are potentially ways to fix it so that the DPC threads aren't
started until after the other CPUs are launched, but doing it correctly
is tricky. You need to defer the startup of the ntoskrnl subsystem
(ntoskrnl_libinit()), not just defer ndis_attach().

For now, I don't think it will make much difference having just the
single DPC thread (I started out with just one anyway). Note that this
turns the KeSetTargetProcessorDpc() routine into a no-op, since the
CPU number in struct kdpc is now ignored.
2005-10-22 05:15:20 +00:00
Bill Paul
87ff20ed78 Correct the macro definition for KeRaiseIrql(). The official API
is KeRaiseIrql(newirql, &oldirql), not oldirql = KeRaiseIrql(newirql).
(The macro ultimately translates to KfRaiseIrql() which does use
the latter API, so this has no effect on generated code.)

Also, wait for thread termination the right way: kthread_exit()
will ultimately do a wakeup(td->td_proc). This is the event we
should wait on. Eliminate the previous synchronization machinery
for this since it was never guaranteed to work correctly.
2005-10-21 05:23:20 +00:00
Bill Paul
1e956d87e1 Use sched_bind() to make sure the DPC threads are bound to the correct
processor, to insure DPC thread 0 runs on CPU0, DPC thread 1 runs on
CPU1, and so on.

Elevate the priority of the workitem threads, though don't use as
high a priority as the DPC threads.
2005-10-20 17:45:58 +00:00
David Xu
3e1c732ffa Fix compiling problem by adding prefix name svr4 to si_xxx macro, the
si_xxx macro should not be used in compat headers, as these are standard
member names or only can be used in our native header file signal.h.
2005-10-19 09:33:15 +00:00
Bill Paul
a3ced67adf Another round of cleanups and fixes:
- Change ndis_return() from a DPC to a workitem so that it doesn't
  run at DISPATCH_LEVEL (with the dispatcher lock held).

- In if_ndis.c, submit packets to the stack via (*ifp->if_input)() in
  a workitem instead of doing it directly in ndis_rxeof(), because
  ndis_rxeof() runs in a DPC, and hence at DISPATCH_LEVEL. This
  implies that the 'dispatch level' mutex for the current CPU is
  being held, and we don't want to call if_input while holding
  any locks.

- Reimplement IoConnectInterrupt()/IoDisconnectInterrupt(). The original
  approach I used to track down the interrupt resource (by scanning
  the device tree starting at the nexus) is prone to problems when
  two devices share an interrupt. (E.g removing ndis1 might disable
  interrupts for ndis0.) The new approach is to multiplex all the
  NDIS interrupts through a common internal dispatcher (ntoskrnl_intr())
  and allow IoConnectInterrupt()/IoDisconnectInterrupt() to add or
  remove interrupts from the dispatch list.

- Implement KeAcquireInterruptSpinLock() and KeReleaseInterruptSpinLock().

- Change the DPC and workitem threads to use the KeXXXSpinLock
  API instead of mtx_lock_spin()/mtx_unlock_spin().

- Simplify the NdisXXXPacket routines by creating an actual
  packet pool structure and using the InterlockedSList routines
  to manage the packet queue.

- Only honor the value returned by OID_GEN_MAXIMUM_SEND_PACKETS
  for serialized drivers. For deserialized drivers, we now create
  a packet array of 64 entries. (The Microsoft DDK documentation
  says that for deserialized miniports, OID_GEN_MAXIMUM_SEND_PACKETS
  is ignored, and the driver for the Marvell 8335 chip, which is
  a deserialized miniport, returns 1 when queried.)

- Clean up timer handling in subr_ntoskrnl.

- Add the following conditional debugging code:
	NTOSKRNL_DEBUG_TIMERS - add debugging and stats for timers
	NDIS_DEBUG_PACKETS - add extra sanity checking for NdisXXXPacket API
	NTOSKRNL_DEBUG_SPINLOCKS - add test for spinning too long

- In kern_ndis.c, always start the HAL first and shut it down last,
  since Windows spinlocks depend on it. Ntoskrnl should similarly be
  started second and shut down next to last.
2005-10-18 19:52:15 +00:00
Paul Saab
15857ef5ea regen after recvmsg, recvfrom, sendmsg 2005-10-15 05:57:34 +00:00
Paul Saab
a372f8224c Implement the 32bit versions of recvmsg, recvfrom, sendmsg
Partially obtained from:	jhb
2005-10-15 05:57:06 +00:00
Paul Saab
fd151bb940 regen for clock_gettime, clock_settime, clock_getres 2005-10-15 02:54:39 +00:00
Paul Saab
f0b479cd75 Implement 32bit wrappers for clock_gettime, clock_settime, and
clock_getres.
2005-10-15 02:54:18 +00:00
Paul Saab
145f7e60da regen 2005-10-15 02:40:34 +00:00
Paul Saab
d5c7796115 Correct the prototype for freebsd32_nanosleep and use the proper
size when copying struct timespec32 in and out.
2005-10-15 02:40:10 +00:00
David Xu
9104847f21 1. Change prototype of trapsignal and sendsig to use ksiginfo_t *, most
changes in MD code are trivial, before this change, trapsignal and
   sendsig use discrete parameters, now they uses member fields of
   ksiginfo_t structure. For sendsig, this change allows us to pass
   POSIX realtime signal value to user code.

2. Remove cpu_thread_siginfo, it is no longer needed because we now always
   generate ksiginfo_t data and feed it to libpthread.

3. Add p_sigqueue to proc structure to hold shared signals which were
   blocked by all threads in the proc.

4. Add td_sigqueue to thread structure to hold all signals delivered to
   thread.

5. i386 and amd64 now return POSIX standard si_code, other arches will
   be fixed.

6. In this sigqueue implementation, pending signal set is kept as before,
   an extra siginfo list holds additional siginfo_t data for signals.
   kernel code uses psignal() still behavior as before, it won't be failed
   even under memory pressure, only exception is when deleting a signal,
   we should call sigqueue_delete to remove signal from sigqueue but
   not SIGDELSET. Current there is no kernel code will deliver a signal
   with additional data, so kernel should be as stable as before,
   a ksiginfo can carry more information, for example, allow signal to
   be delivered but throw away siginfo data if memory is not enough.
   SIGKILL and SIGSTOP have fast path in sigqueue_add, because they can
   not be caught or masked.
   The sigqueue() syscall allows user code to queue a signal to target
   process, if resource is unavailable, EAGAIN will be returned as
   specification said.
   Just before thread exits, signal queue memory will be freed by
   sigqueue_flush.
   Current, all signals are allowed to be queued, not only realtime signals.

Earlier patch reviewed by: jhb, deischen
Tested on: i386, amd64
2005-10-14 12:43:47 +00:00
Bill Paul
85c13a8375 Convert ndis_set_info() and ndis_get_info() from using msleep()
to KeSetEvent()/KeWaitForSingleObject(). Also make object argument
of KeWaitForSingleObject() a void * like it's supposed to be.
2005-10-12 03:02:50 +00:00
Bill Paul
21628ddbd6 This commit makes a big round of updates and fixes many, many things.
First and most importantly, I threw out the thread priority-twiddling
implementation of KeRaiseIrql()/KeLowerIrq()/KeGetCurrentIrql() in
favor of a new scheme that uses sleep mutexes. The old scheme was
really very naughty and sought to provide the same behavior as
Windows spinlocks (i.e. blocking pre-emption) but in a way that
wouldn't raise the ire of WITNESS. The new scheme represents
'DISPATCH_LEVEL' as the acquisition of a per-cpu sleep mutex. If
a thread on cpu0 acquires the 'dispatcher mutex,' it will block
any other thread on the same processor that tries to acquire it,
in effect only allowing one thread on the processor to be at
'DISPATCH_LEVEL' at any given time. It can then do the 'atomic sit
and spin' routine on the spinlock variable itself. If a thread on
cpu1 wants to acquire the same spinlock, it acquires the 'dispatcher
mutex' for cpu1 and then it too does an atomic sit and spin to try
acquiring the spinlock.

Unlike real spinlocks, this does not disable pre-emption of all
threads on the CPU, but it does put any threads involved with
the NDISulator to sleep, which is just as good for our purposes.

This means I can now play nice with WITNESS, and I can safely do
things like call malloc() when I'm at 'DISPATCH_LEVEL,' which
you're allowed to do in Windows.

Next, I completely re-wrote most of the event/timer/mutex handling
and wait code. KeWaitForSingleObject() and KeWaitForMultipleObjects()
have been re-written to use condition variables instead of msleep().
This allows us to use the Windows convention whereby thread A can
tell thread B "wake up with a boosted priority." (With msleep(), you
instead have thread B saying "when I get woken up, I'll use this
priority here," and thread A can't tell it to do otherwise.) The
new KeWaitForMultipleObjects() has been better tested and better
duplicates the semantics of its Windows counterpart.

I also overhauled the IoQueueWorkItem() API and underlying code.
Like KeInsertQueueDpc(), IoQueueWorkItem() must insure that the
same work item isn't put on the queue twice. ExQueueWorkItem(),
which in my implementation is built on top of IoQueueWorkItem(),
was also modified to perform a similar test.

I renamed the doubly-linked list macros to give them the same names
as their Windows counterparts and fixed RemoveListTail() and
RemoveListHead() so they properly return the removed item.

I also corrected the list handling code in ntoskrnl_dpc_thread()
and ntoskrnl_workitem_thread(). I realized that the original logic
did not correctly handle the case where a DPC callout tries to
queue up another DPC. It works correctly now.

I implemented IoConnectInterrupt() and IoDisconnectInterrupt() and
modified NdisMRegisterInterrupt() and NdisMDisconnectInterrupt() to
use them. I also tried to duplicate the interrupt handling scheme
used in Windows. The interrupt handling is now internal to ndis.ko,
and the ndis_intr() function has been removed from if_ndis.c. (In
the USB case, interrupt handling isn't needed in if_ndis.c anyway.)

NdisMSleep() has been rewritten to use a KeWaitForSingleObject()
and a KeTimer, which is how it works in Windows. (This is mainly
to insure that the NDISulator uses the KeTimer API so I can spot
any problems with it that may arise.)

KeCancelTimer() has been changed so that it only cancels timers, and
does not attempt to cancel a DPC if the timer managed to fire and
queue one up before KeCancelTimer() was called. The Windows DDK
documentation seems to imply that KeCantelTimer() will also call
KeRemoveQueueDpc() if necessary, but it really doesn't.

The KeTimer implementation has been rewritten to use the callout API
directly instead of timeout()/untimeout(). I still cheat a little in
that I have to manage my own small callout timer wheel, but the timer
code works more smoothly now. I discovered a race condition using
timeout()/untimeout() with periodic timers where untimeout() fails
to actually cancel a timer. I don't quite understand where the race
is, using callout_init()/callout_reset()/callout_stop() directly
seems to fix it.

I also discovered and fixed a bug in winx32_wrap.S related to
translating _stdcall calls. There are a couple of routines
(i.e. the 64-bit arithmetic intrinsics in subr_ntoskrnl) that
return 64-bit quantities. On the x86 arch, 64-bit values are
returned in the %eax and %edx registers. However, it happens
that the ctxsw_utow() routine uses %edx as a scratch register,
and x86_stdcall_wrap() and x86_stdcall_call() were only preserving
%eax before branching to ctxsw_utow(). This means %edx was getting
clobbered in some cases. Curiously, the most noticeable effect of this
bug is that the driver for the TI AXC110 chipset would constantly drop
and reacquire its link for no apparent reason. Both %eax and %edx
are preserved on the stack now. The _fastcall and _regparm
wrappers already handled everything correctly.

I changed if_ndis to use IoAllocateWorkItem() and IoQueueWorkItem()
instead of the NdisScheduleWorkItem() API. This is to avoid possible
deadlocks with any drivers that use NdisScheduleWorkItem() themselves.

The unicode/ansi conversion handling code has been cleaned up. The
internal routines have been moved to subr_ntoskrnl and the
RtlXXX routines have been exported so that subr_ndis can call them.
This removes the incestuous relationship between the two modules
regarding this code and fixes the implementation so that it honors
the 'maxlen' fields correctly. (Previously it was possible for
NdisUnicodeStringToAnsiString() to possibly clobber memory it didn't
own, which was causing many mysterious crashes in the Marvell 8335
driver.)

The registry handling code (NdisOpen/Close/ReadConfiguration()) has
been fixed to allocate memory for all the parameters it hands out to
callers and delete whem when NdisCloseConfiguration() is called.
(Previously, it would secretly use a single static buffer.)

I also substantially updated if_ndis so that the source can now be
built on FreeBSD 7, 6 and 5 without any changes. On FreeBSD 5, only
WEP support is enabled. On FreeBSD 6 and 7, WPA-PSK support is enabled.

The original WPA code has been updated to fit in more cleanly with
the net80211 API, and to eleminate the use of magic numbers. The
ndis_80211_setstate() routine now sets a default authmode of OPEN
and initializes the RTS threshold and fragmentation threshold.
The WPA routines were changed so that the authentication mode is
always set first, followed by the cipher. Some drivers depend on
the operations being performed in this order.

I also added passthrough ioctls that allow application code to
directly call the MiniportSetInformation()/MiniportQueryInformation()
methods via ndis_set_info() and ndis_get_info(). The ndis_linksts()
routine also caches the last 4 events signalled by the driver via
NdisMIndicateStatus(), and they can be queried by an application via
a separate ioctl. This is done to allow wpa_supplicant to directly
program the various crypto and key management options in the driver,
allowing things like WPA2 support to work.

Whew.
2005-10-10 16:46:39 +00:00
John Baldwin
f2107e8d54 Use the constants for the syscall names from syscall.h rather than
hardcoding the numbers for the SYSVIPC syscalls.
2005-10-03 18:34:17 +00:00
Robert Watson
5f419982c2 Back out alpha/alpha/trap.c:1.124, osf1_ioctl.c:1.14, osf1_misc.c:1.57,
osf1_signal.c:1.41, amd64/amd64/trap.c:1.291, linux_socket.c:1.60,
svr4_fcntl.c:1.36, svr4_ioctl.c:1.23, svr4_ipc.c:1.18, svr4_misc.c:1.81,
svr4_signal.c:1.34, svr4_stat.c:1.21, svr4_stream.c:1.55,
svr4_termios.c:1.13, svr4_ttold.c:1.15, svr4_util.h:1.10,
ext2_alloc.c:1.43, i386/i386/trap.c:1.279, vm86.c:1.58,
unaligned.c:1.12, imgact_elf.c:1.164, ffs_alloc.c:1.133:

Now that Giant is acquired in uprintf() and tprintf(), the caller no
longer leads to acquire Giant unless it also holds another mutex that
would generate a lock order reversal when calling into these functions.
Specifically not backed out is the acquisition of Giant in nfs_socket.c
and rpcclnt.c, where local mutexes are held and would otherwise violate
the lock order with Giant.

This aligns this code more with the eventual locking of ttys.

Suggested by:	bde
2005-09-28 07:03:03 +00:00
Peter Wemm
a11ea6e325 Regenerate 2005-09-27 18:04:52 +00:00
Peter Wemm
add121a476 Implement 32 bit getcontext/setcontext/swapcontext on amd64. I've added
stubs for ia64 to keep it compiling.  These are used by 32 bit apps such
as gdb.
2005-09-27 18:04:20 +00:00
Robert Watson
84d2b7df26 Add GIANT_REQUIRED and WITNESS sleep warnings to uprintf() and tprintf(),
as they both interact with the tty code (!MPSAFE) and may sleep if the
tty buffer is full (per comment).

Modify all consumers of uprintf() and tprintf() to hold Giant around
calls into these functions.  In most cases, this means adding an
acquisition of Giant immediately around the function.  In some cases
(nfs_timer()), it means acquiring Giant higher up in the callout.

With these changes, UFS no longer panics on SMP when either blocks are
exhausted or inodes are exhausted under load due to races in the tty
code when running without Giant.

NB: Some reduction in calls to uprintf() in the svr4 code is probably
desirable.

NB: In the case of nfs_timer(), calling uprintf() while holding a mutex,
or even in a callout at all, is a bad idea, and will generate warnings
and potential upset.  This needs to be fixed, but was a problem before
this change.

NB: uprintf()/tprintf() sleeping is generally a bad ideas, as is having
non-MPSAFE tty code.

MFC after:	1 week
2005-09-19 16:51:43 +00:00
Andre Oppermann
e72b668b69 Test the mbuf flags against the correct constant. The previous version
worked as intended but only by chance.  MT_HEADER == M_PKTHDR == 0x2.
2005-08-30 16:21:51 +00:00
Xin LI
e68796868a Fix kernel build.
Reported by:	tinderbox
2005-08-28 13:11:08 +00:00
Craig Rodrigues
8739cd44d0 Rewrite linux_ifconf() to be more like ifconf() in net/if.c
so that we do not call uiomove() while IFNET_RLOCK() is held.
This eliminates the witness warning:

Calling uiomove() with the following non-sleepable locks held:
exclusive sleep mutex ifnet r = 0 (0xc096dd60) locked @
/usr/src/sys/modules/linux/../../compat/linux/linux_ioctl.c:2170

MFC after:	2 days
2005-08-27 14:44:10 +00:00
Robert Watson
13f4c340ae Propagate rename of IFF_OACTIVE and IFF_RUNNING to IFF_DRV_OACTIVE and
IFF_DRV_RUNNING, as well as the move from ifnet.if_flags to
ifnet.if_drv_flags.  Device drivers are now responsible for
synchronizing access to these flags, as they are in if_drv_flags.  This
helps prevent races between the network stack and device driver in
maintaining the interface flags field.

Many __FreeBSD__ and __FreeBSD_version checks maintained and continued;
some less so.

Reviewed by:	pjd, bz
MFC after:	7 days
2005-08-09 10:20:02 +00:00
John Baldwin
ec1f24a934 Add missing dependencies on the SYSVIPC modules. 2005-07-29 19:41:04 +00:00
John Baldwin
813a5e14ec Move MODULE_DEPEND() statements for SYSVIPC dependencies to linux_ipc.c
so that they aren't duplicated 3 times and are also in the same file as
the code that depends on the SYSVIPC modules.
2005-07-29 19:40:39 +00:00
John Baldwin
ac5ee935dd Regen. 2005-07-13 20:35:09 +00:00
John Baldwin
8683e7fdc1 Make a pass through all the compat ABIs sychronizing the MP safe flags
with the master syscall table as well as marking several ABI wrapper
functions safe.

MFC after:	1 week
2005-07-13 20:32:42 +00:00
John Baldwin
6e9b02cf80 Regen. 2005-07-13 15:14:54 +00:00
John Baldwin
2773347338 - Stop hardcoding #define's for options and use the appropriate
opt_foo.h headers instead.
- Hook up the IPC SVR4 syscalls.

MFC after:	3 days
2005-07-13 15:14:33 +00:00
John Baldwin
fa34d9b7a5 Wrap the ia64-specific freebsd32_mmap_partial() hack in Giant for now
since it calls into VFS and VM.  This makes the freebsd32_mmap() routine
MP safe and the extra Giants here can be revisited later.

Glanced at by:	marcel
MFC after:	3 days
2005-07-13 15:12:19 +00:00
John Baldwin
02295eedc7 Add Giant around linux_getcwd_common() in linux_getcwd().
Approved by:	re (scottl)
2005-07-09 12:34:49 +00:00
John Baldwin
4641373fde Add missing locking to linux_connect() so that it can be marked MP safe:
- Conditionally grab Giant around the EISCONN hack at the end based on
  debug.mpsafenet.
- Protect access to so_emuldata via SOCK_LOCK.

Reviewed by:	rwatson
Approved by:	re (scottl)
2005-07-09 12:26:22 +00:00
Roman Kurakin
fbb7165a4b Use implicit type cast for ->k_lock to fix compilation of ndis
as a part of the GENERIC kernel with INVARIANT* and WITNESS*
turned off.
(For non GENERIC kernel KTR and MUTEX_PROFILING should be also
off).

Submitted by:	Eygene A. Ryabinkin <rea at rea dot mbslab dot kiae dot ru>
Approved by:	re (scottl)
PR:		81767
2005-07-08 18:36:59 +00:00
John Baldwin
55522478e6 Lock Giant in svr4_add_socket() so that the various svr4_*stat() calls
can be marked MP safe as this is the only part of them that is not
already MP safe.

Approved by:	re (scottl)
2005-07-07 19:27:29 +00:00
John Baldwin
03badf38ab Remove an unused syscallarg() macro leftover from this code's origins in
NetBSD.

Approved by:	re (scottl)
2005-07-07 19:26:43 +00:00
John Baldwin
07fac65b15 Rototill this file so that it actually compiles. It doesn't do anything
in the build still due to some #undef's in svr4.h, but if you hack around
that and add some missing entries to syscalls.master, then this file will
now compile.  The changes involved proc -> thread, using FreeBSD syscall
names instead of NetBSD, and axeing syscallarg() and retval arguments.

Approved by:	re (scottl)
2005-07-07 19:25:47 +00:00
John Baldwin
8d948cd1ec Fix the computation of uptime for linux_sysinfo(). Before it was returning
the uptime in seconds mod 60 which wasn't very useful.

Approved by:	re (scottl)
2005-07-07 19:17:55 +00:00
John Baldwin
9f3157a254 Regenerate.
Approved by:	re (scottl)
2005-07-07 18:20:38 +00:00
John Baldwin
bcd9e0dd20 - Add two new system calls: preadv() and pwritev() which are like readv()
and writev() except that they take an additional offset argument and do
  not change the current file position.  In SAT speak:
  preadv:readv::pread:read and pwritev:writev::pwrite:write.
- Try to reduce code duplication some by merging most of the old
  kern_foov() and dofilefoo() functions into new dofilefoo() functions
  that are called by kern_foov() and kern_pfoov().  The non-v functions
  now all generate a simple uio on the stack from the passed in arguments
  and then call kern_foov().  For example, read() now just builds a uio and
  calls kern_readv() and pwrite() just builds a uio and calls kern_pwritev().

PR:		kern/80362
Submitted by:	Marc Olzheim marcolz at stack dot nl (1)
Approved by:	re (scottl)
MFC after:	1 week
2005-07-07 18:17:55 +00:00
Peter Wemm
62919d788b Jumbo-commit to enhance 32 bit application support on 64 bit kernels.
This is good enough to be able to run a RELENG_4 gdb binary against
a RELENG_4 application, along with various other tools (eg: 4.x gcore).
We use this at work.

ia32_reg.[ch]: handle the 32 bit register file format, used by ptrace,
	procfs and core dumps.
procfs_*regs.c: vary the format of proc/XXX/*regs depending on the client
	and target application.
procfs_map.c: Don't print a 64 bit value to 32 bit consumers, or their
	sscanf fails.  They expect an unsigned long.
imgact_elf.c: produce a valid 32 bit coredump for 32 bit apps.
sys_process.c: handle 32 bit consumers debugging 32 bit targets.  Note
	that 64 bit consumers can still debug 32 bit targets.

IA64 has got stubs for ia32_reg.c.

Known limitations: a 5.x/6.x gdb uses get/setcontext(), which isn't
implemented in the 32/64 wrapper yet.  We also make a tiny patch to
gdb pacify it over conflicting formats of ld-elf.so.1.

Approved by:	re
2005-06-30 07:49:22 +00:00
John Baldwin
19042f9cce - Change the commented out freebsd32_xxx() example to use kern_xxx() along
with a single copyin() + translate and translate + copyout() rather than
  using the stackgap.
- Remove implementation of the stackgap for freebsd32 since it is no longer
  used for that compat ABI.

Approved by:	re (scottl)
2005-06-29 15:16:20 +00:00
John Baldwin
de1c01ad37 Correct the amount of data to allocate in these local copies of
exec_copyin_strings() to catch up to rev 1.266 of kern_exec.c.  This fixes
panics on amd64 with compat binaries since exec_free_args() was freeing
more memory than these functions were allocating and the mismatch could
cause memory to be freed out from under other concurrent execs.

Approved by:	re (scottl)
2005-06-24 17:41:28 +00:00
Pawel Jakub Dawidek
06a137780b Actually only protect mount-point if security.jail.enforce_statfs is set to 2.
If we don't return statistics about requested file systems, system tools
may not work correctly or at all.

Approved by:	re (scottl)
2005-06-23 22:13:29 +00:00
Pawel Jakub Dawidek
3a996d6e91 Do not allocate memory based on not-checked argument from userland.
It can be used to panic the kernel by giving too big value.
Fix it by moving allocation and size verification into kern_getfsstat().
This even simplifies kern_getfsstat() consumers, but destroys symmetry -
memory is allocated inside kern_getfsstat(), but has to be freed by the
caller.

Found by:	FreeBSD Kernel Stress Test Suite: http://www.holm.cc/stress/
Reported by:	Peter Holm <peter@holm.cc>
2005-06-11 14:58:20 +00:00
Brooks Davis
fc74a9f93a Stop embedding struct ifnet at the top of driver softcs. Instead the
struct ifnet or the layer 2 common structure it was embedded in have
been replaced with a struct ifnet pointer to be filled by a call to the
new function, if_alloc(). The layer 2 common structure is also allocated
via if_alloc() based on the interface type. It is hung off the new
struct ifnet member, if_l2com.

This change removes the size of these structures from the kernel ABI and
will allow us to better manage them as interfaces come and go.

Other changes of note:
 - Struct arpcom is no longer referenced in normal interface code.
   Instead the Ethernet address is accessed via the IFP2ENADDR() macro.
   To enforce this ac_enaddr has been renamed to _ac_enaddr.
 - The second argument to ether_ifattach is now always the mac address
   from driver private storage rather than sometimes being ac_enaddr.

Reviewed by:	sobomax, sam
2005-06-10 16:49:24 +00:00
Pawel Jakub Dawidek
820a0de9a9 Rename sysctl security.jail.getfsstatroot_only to security.jail.enforce_statfs
and extend its functionality:

value	policy
0	show all mount-points without any restrictions
1	show only mount-points below jail's chroot and show only part of the
	mount-point's path (if jail's chroot directory is /jails/foo and
	mount-point is /jails/foo/usr/home only /usr/home will be shown)
2	show only mount-point where jail's chroot directory is placed.

Default value is 2.

Discussed with:	rwatson
2005-06-09 18:49:19 +00:00
Pawel Jakub Dawidek
13a82b9623 Avoid code duplication in serval places by introducing universal
kern_getfsstat() function.

Obtained from:	jhb
2005-06-09 17:44:46 +00:00
Maxim Sobolev
bc165ab0fe Properly convert FreeBSD priority values into Linux values in the
getpriority(2) syscall.

PR:		kern/81951
Submitted by:	Andriy Gapon <avg@icyb.net.ua>
2005-06-08 20:41:28 +00:00
Paul Saab
efe5becafa Wrap copyin/copyout for kevent so the 32bit wrapper does not have
to malloc nchanges * sizeof(struct kevent) AND/OR nevents *
sizeof(struct kevent) on every syscall.

Glanced at by:	peter, jmg
Obtained from:	Yahoo!
MFC after:	2 weeks
2005-06-03 23:15:01 +00:00
Robert Watson
3984b2328c Rebuild generated system call definition files following the addition of
the audit event field to the syscalls.master file format.

Submitted by:	wsalamon
Obtained from:	TrustedBSD Project
2005-05-30 15:20:21 +00:00
Robert Watson
f3596e3370 Introduce a new field in the syscalls.master file format to hold the
audit event identifier associated with each system call, which will
be stored by makesyscalls.sh in the sy_auevent field of struct sysent.
For now, default the audit identifier on all system calls to AUE_NULL,
but in the near future, other BSM event identifiers will be used.  The
mapping of system calls to event identifiers is many:one due to
multiple system calls that map to the same end functionality across
compatibility wrappers, ABI wrappers, etc.

Submitted by:	wsalamon
Obtained from:	TrustedBSD Project
2005-05-30 15:09:18 +00:00
Yoshihiro Takahashi
d4fcf3cba5 Remove bus_{mem,p}io.h and related code for a micro-optimization on i386
and amd64.  The optimization is a trivial on recent machines.

Reviewed by:	-arch (imp, marcel, dfr)
2005-05-29 04:42:30 +00:00
Pawel Jakub Dawidek
d0cad55da8 Remove (now) unused argument 'td' from bsd_to_linux_statfs(). 2005-05-27 19:25:39 +00:00
Paul Saab
473dd55f2e Copyout to userland if kern_sigaction succeeds 2005-05-24 17:52:14 +00:00
Pawel Jakub Dawidek
672d95c55d The code is under '#ifdef not_that_way', but anyway:
- Add missing prison_check_mount() check.
2005-05-22 22:30:31 +00:00
Pawel Jakub Dawidek
a0e96a49df If we need to hide fsid, kern_statfs()/kern_fstatfs() will do it for us,
so do not duplicate the code in cvtstatfs().
Note, that we now need to clear fsid in freebsd4_getfsstat().

This moves all security related checks from functions like cvtstatfs()
and will allow to add more security related stuff (like statfs(2), etc.
protection for jails) a bit easier.
2005-05-22 21:52:30 +00:00
Bill Paul
0b6c3bf1bc Missed kern_windrv.c in the last checkin. 2005-05-20 04:01:36 +00:00
Bill Paul
450a94af7a Deal with a few bootstrap issues:
We can't call KeFlushQueuedDpcs() during bootstrap (cold == 1), since
the flush operation sleeps to wait for completion, and we can't sleep
here (clowns will eat us).

On an i386 SMP system, if we're loaded/probed/attached during bootstrap,
smp_rendezvous() won't run us anywhere except CPU 0 (since the other CPUs
aren't launched until later), which means we won't be able to set up
the GDTs anywhere except CPU 0. To deal with this case, ctxsw_utow()
now checks to see if the TID for the current processor has been properly
initialized and sets up the GTD for the current CPU if not.

Lastly, in if_ndis.c:ndis_shutdown(), do an ndis_stop() to insure we
really halt the NIC and stop interrupts from happening.

Note that loading a driver during bootstrap is, unfortunately, kind of
a hit or miss sort of proposition. In Windows, the expectation is that
by the time a given driver's MiniportInitialize() method is called,
the system is already in 'multiuser' state, i.e. it's up and running
enough to support all the stuff specified in the NDIS API, which includes
the underlying OS-supplied facilities it implicitly depends on, such as
having all CPUs running, having the DPC queues initialized, WorkItem
threads running, etc. But in UNIX, a lot of that stuff won't work during
bootstrap. This causes a problem since we need to call MiniportInitialize()
at least once during ndis_attach() in order to find out what kind of NIC
we have and learn its station address.

What this means is that some cards just plain won't work right if
you try to pre-load the driver along with the kernel: they'll only be
probed/attach correctly if the driver is kldloaded _after_ the system
has reached multiuser. I can't really think of a way around this that
would still preserve the ability to use an NDIS device for diskless
booting.
2005-05-20 04:00:50 +00:00