Commit Graph

1707 Commits

Author SHA1 Message Date
Dmitry Chagin
3a72bf04c4 Implement MSG_CMSG_CLOEXEC flag for linux_recvmsg().
Approved by:	kib (mentor)
MFC after:	1 month
2009-05-18 04:07:46 +00:00
Dmitry Chagin
3933bde22e Somewhere between 2.6.23 and 2.6.27, Linux added SOCK_CLOEXEC and
SOCK_NONBLOCK flags, that allow to save fcntl() calls.

Implement a variation of the socket() syscall which takes a flags
in addition to the type argument.

Approved by:	kib (mentor)
MFC after:	1 month
2009-05-16 18:48:41 +00:00
Dmitry Chagin
eeb63e515f Return EINVAL in case when the incorrect or unsupported
type argument is specified.

Do not map type argument value as its Linux values are
identical to FreeBSD values.

Approved by:	kib (mentor)
2009-05-16 18:46:51 +00:00
Dmitry Chagin
6994ea543f Use the protocol family constants for the domain argument validation.
Return immediately when the socket() failed.

Approved by:	kib (mentor)
MFC after:	1 month
2009-05-16 18:44:56 +00:00
Dmitry Chagin
d4dd69c46c Emulate SO_PEERCRED socket option.
Temporarily use 0 for pid member as the FreeBSD does not cache remote
UNIX domain socket peer pid.

PR:		kern/102956
Reviewed by:	rwatson
Approved by:	kib (mentor)
MFC after:	1 month
2009-05-16 18:42:18 +00:00
Christian Brueffer
bf15937833 Remove an unused variable.
Found with:	Coverity Prevent(tm)
CID:		1167
2009-05-14 09:28:02 +00:00
Christian Brueffer
c3c1eab368 Fix memory leak in an error case.
Found with:	Coverity Prevent(tm)
CID:		371
MFC after:	2 weeks
2009-05-13 08:50:13 +00:00
Dmitry Chagin
03cc95d21a Translate l_timeval arg to native struct timeval in
linux_setsockopt()/linux_getsockopt() for SO_RCVTIMEO,
SO_SNDTIMEO opts as l_timeval has MD members.

Remove bogus __packed attribute from l_timeval struct on __amd64__.

PR:		kern/134276
Submitted by:	Thomas Mueller <tmueller sysgo com>
Approved by:	kib (mentor)
MFC after:	2 weeks
2009-05-11 13:50:42 +00:00
Dmitry Chagin
3980a435a2 Add forgotten linux to bsd flags argument mapping into the linux_recv().
PR:		kern/134276
Submitted by:	Thomas Mueller <tmueller sysgo com>
Approved by:	kib (mentor)
MFC after:	2 weeks
2009-05-11 13:42:40 +00:00
Dmitry Chagin
8d30f381ef Do not export AT_CLKTCK when emulating Linux kernel prior
to 2.4.0, as it has appeared in the 2.4.0-rc7 first time.
Being exported, AT_CLKTCK is returned by sysconf(_SC_CLK_TCK),
glibc falls back to the hard-coded CLK_TCK value when aux entry
is not present.

Glibc versions prior to 2.2.1 always use hard-coded CLK_TCK value.

For older applications/libc's which depends on hard-coded CLK_TCK
value user should set compat.linux.osrelease less than 2.4.0.

Approved by:	kib (mentor)
2009-05-10 18:43:43 +00:00
Dmitry Chagin
580dd797fd Introduce linux_kernver() interface which is intended for an exact
designation of the emulated kernel version.

linux_kernver() returns integer value formatted as 'VVVMMMIII' where
VVV - version, MMM - major revision, III - minor revision.

Approved by:	kib (mentor)
2009-05-10 18:27:20 +00:00
Dmitry Chagin
1ca16454b3 Rework r189362, r191883.
The frequency of the statistics clock is given by stathz.
Use stathz if it is available, otherwise use hz.

Pointed out by:	bde

Approved by:	kib (mentor)
2009-05-10 18:16:07 +00:00
Ed Schouten
e5a34e5582 Regenerate system call tables to use SVN ids. 2009-05-08 20:16:04 +00:00
Ed Schouten
51e6ba0f00 Burn TTY ioctl bridges in compat layers.
I really don't want any pieces of code to include ioctl_compat.h, so let
the ibcs2 and svr4 compat leave sgtty alone. If they want to support
sgtty, they should emulate it on top of termios, not sgtty.

The code has been marked with BURN_BRIDGES for a long time. ibcs2 and
svr4 are not really popular pieces of code anyway.
2009-05-08 20:06:37 +00:00
Marko Zec
29b02909eb Introduce a new virtualization container, provisionally named vprocg, to hold
virtualized instances of hostname and domainname, as well as a new top-level
virtualization struct vimage, which holds pointers to struct vnet and struct
vprocg.  Struct vprocg is likely to become replaced in the near future with
a new jail management API import.

As a consequence of this change, change struct ucred to point to a struct
vimage, instead of directly pointing to a vnet.

Merge vnet / vimage / ucred refcounting infrastructure from p4 / vimage
branch.

Permit kldload / kldunload operations to be executed only from the default
vimage context.

This change should have no functional impact on nooptions VIMAGE kernel
builds.

Reviewed by:	bz
Approved by:	julian (mentor)
2009-05-08 14:11:06 +00:00
Jamie Gritton
e03d223bd4 Give vfs_getopt the type it's expecting.
Write 100 times: "32 bits is so twentieth century."

Noticed by:	dchagin
2009-05-07 19:46:29 +00:00
Jamie Gritton
7ae27ff49f Move the per-prison Linux MIB from a private one-off pointer to the new
OSD-based jail extensions.  This allows the Linux MIB to accessed via
jail_set and jail_get, and serves as a demonstration of adding jail support
to a module.

Reviewed by:	dchagin, kib
Approved by:	bz (mentor)
2009-05-07 18:36:47 +00:00
Dmitry Chagin
ca8c3e7bba Add KTR(9) tracing for futex emulation.
Approved by:	kib (mentor)
MFC after:	1 month
2009-05-07 16:14:31 +00:00
Dmitry Chagin
c65b9bfa3c Linux exports HZ value to user space via AT_CLKTCK auxiliary vector entry,
which is available for Glibc as sysconf(_SC_CLK_TCK). If AT_CLKTCK entry is
not exported, Glibc uses 100.

linux_times() shall use the value that is exported to user space.

Pointyhat to:	dchagin

PR:		kern/134251
Approved by:	kib (mentor)
MFC after:	2 weeks
2009-05-07 14:24:50 +00:00
Dmitry Chagin
4d706dcc08 Change linux struct tms definition to match actual linux one.
Approved by:	kib (mentor)
MFC after:	2 weeks
2009-05-07 12:55:58 +00:00
Dmitry Chagin
4ec3ea90eb Add preliminary KTR(9) support to the linux emulation layer.
Approved by:	kib (mentor)
MFC after:	1 month
2009-05-07 10:01:05 +00:00
Dmitry Chagin
13f20d7e86 To avoid excessive code duplication move MI definitions to the MI
header file. As it is defined in Linux.

Approved by:	kib (mentor)
MFC after:	1 month
2009-05-07 09:39:20 +00:00
Dmitry Chagin
d9b063cc9d Return EAFNOSUPPORT instead of EINVAL in case when the incorrect or
unsupported domain argument is specified.

Approved by:	kib (mentor)
2009-05-07 09:34:02 +00:00
Dmitry Chagin
1a52a4abf7 Rework r191742.
Use the protocol family constants for the domain argument validation.

Return EAFNOSUPPORT in case when the incorrect domain argument
is specified.

Return EPROTONOSUPPORT instead of passing values that are not 0
to the BSD layer.

Suggested by:   rwatson

Approved by:	kib (mentor)
MFC after:	1 month
2009-05-07 03:23:22 +00:00
Jamie Gritton
84a8cad0f6 Mark Linux MIB sysctls MPSAFE.
Reviewed by:	dchagin, kib
Approved by:	bz (mentor)
2009-05-04 19:06:05 +00:00
Dmitry Chagin
40092d93b4 Linux socketpair() call expects explicit specified protocol for
AF_LOCAL domain unlike FreeBSD which expects 0 in this case.

Approved by:	kib (mentor)
MFC after:	1 month
2009-05-02 10:51:40 +00:00
Dmitry Chagin
d789bfd562 Move extern variable definitions to the header file.
Approved by:	kib (mentor)
MFC after:	1 month
2009-05-02 10:06:49 +00:00
Dmitry Chagin
79262bf1f0 Reimplement futexes.
Old implemention used Giant to protect the kernel data structures,
but at the same time called malloc(M_WAITOK), that could cause the
calling thread to sleep and lost Giant protection. User-visible
result was the missed wakeup.

New implementation uses one sx lock per futex. The sx protects
the futex structures and allows to sleep while copyin or copyout
are performed.

Unlike linux, we return EINVAL when FUTEX_CMP_REQUEUE operation
is requested and either caller specified futexes are equial or
second futex already exists. This is acceptable since the situation
can only occur from the application error, and glibc falls back to
old FUTEX_WAKE operation when FUTEX_CMP_REQUEUE returns an error.

Approved by:	kib (mentor)
MFC after:	1 month
2009-05-01 15:36:02 +00:00
Jamie Gritton
fe2f3c651f Regen for new jail system calls in r191673.
Approved by:	bz (mentor)
2009-04-29 21:50:13 +00:00
Jamie Gritton
b38ff370e4 Introduce the extensible jail framework, using the same "name=value"
interface as nmount(2).  Three new system calls are added:
* jail_set, to create jails and change the parameters of existing jails.
  This replaces jail(2).
* jail_get, to read the parameters of existing jails.  This replaces the
  security.jail.list sysctl.
* jail_remove to kill off a jail's processes and remove the jail.
Most jail parameters may now be changed after creation, and jails may be
set to exist without any attached processes.  The current jail(2) system
call still exists, though it is now a stub to jail_set(2).

Approved by:	bz (mentor)
2009-04-29 21:14:15 +00:00
Marko Zec
093f25f8c8 In preparation for turning on options VIMAGE in next commits,
rearrange / replace / adjust several INIT_VNET_* initializer
macros, all of which currently resolve to whitespace.

Reviewed by:	bz (an older version of the patch)
Approved by:	julian (mentor)
2009-04-26 22:06:42 +00:00
Dmitry Chagin
b1121623d2 Remove support for FUTEX_REQUEUE operation.
Glibc does not use this operation since 2.3.3 version (Jun 2004),
as it is racy and replaced by FUTEX_CMP_REQUEUE operation.
Glibc versions prior to 2.3.3 fall back to FUTEX_WAKE when
FUTEX_REQUEUE returned EINVAL.

Any application directly using FUTEX_REQUEUE without return
value checking are definitely broken.

Limit quantity of messages per process about unsupported
operation.

Approved by:	kib (mentor)
MFC after:	1 month
2009-04-19 13:48:42 +00:00
Andrew Thompson
4eae601ebd MFp4 //depot/projects/usb@159909
- make usb2_power_mask_t 16-bit
- remove "usb2_config_sub" structure from "usb2_config". To compensate for this
  "usb2_config" has a new field called "usb_mode" which select for which mode
  the current xfer entry is active. Options are: a) Device mode only b) Host
  mode only (default-by-zero) c) Both modes.  This change was scripted using
  the following sed script: "s/\.mh\././g".
- the standard packet size table in "usb_transfer.c" is now a function, hence
  the code for the function uses less memory than the table itself.

Submitted by:	Hans Petter Selasky
2009-04-05 18:20:38 +00:00
Dmitry Chagin
cd899aad76 Fix KBI breakage by r190520 which affects older linux.ko binaries:
1) Move the new field (brand_note) to the end of the Brandinfo structure.
2) Add a new flag BI_BRAND_NOTE that indicates that the brand_note pointer
   is valid.
3) Use the brand_note field if the flag BI_BRAND_NOTE is set and as old
   modules won't have the flag set, so the new field brand_note would be
   ignored.

Suggested by:	jhb
Reviewed by:	jhb
Approved by:	kib (mentor)
MFC after:	6 days
2009-04-05 09:27:19 +00:00
Konstantin Belousov
9da6804056 Regen 2009-04-01 13:12:40 +00:00
Konstantin Belousov
088b38ac84 Rename implementation function for freebsd32 sysarch(2) to allow for
the arguments translations. Provide ABI-compatible definition of the
struct i386_ldt_args for freebsd32 compat layer.

In collaboration with:	pho
Reviewed by:	jhb
2009-04-01 13:11:50 +00:00
Konstantin Belousov
0cdf4ffabc Add all segment registers for the amd64 CPU to struct reg and mcontext.
To keep these structures ABI-compatible, half the size of r_trapno,
r_err, mc_trapno, mc_flags.

Add fsbase and gsbase to mcontext on both amd64 and i386.
Add flags to amd64 mcontext to indicate that it contains valid segments
or bases.

In collaboration with:	pho
Discussed with:	peter
Reviewed by:	jhb
2009-04-01 12:44:17 +00:00
Ed Schouten
7eac36ed3c Emulate the FIODGNAME ioctl in our 32-bit emulator.
It's quite strange that nobody reported this issue before. It turns out
functions like ttyname(), ptsname() and fdevname() don't work in
compat32. This means it't not even possible to run applications like
script(1) inside a 32-bit FreeBSD jail.

Fix this by converting 32-bit fiodgname_arg structures to their 64-bit
equivalent.

Reported by:	kris
Tested by:	kris
2009-03-29 20:09:51 +00:00
Jamie Gritton
8571af59e5 Whitespace/spelling fixes in advance of upcoming functional changes.
Approved by:	bz (mentor)
2009-03-27 13:13:59 +00:00
Doug Ambrisko
d2b2128a28 Add stuff to support upcoming BMC/IPMI flashing of newer Dell machine
via the Linux tool.
     -  Add Linux shim to ipmi(4)
     -  Create a partitions file to linprocfs to make Linux fdisk see
        disks.  This file is dynamic so we can see disks come and go.
     -  Convert msdosfs to vfat in mtab since Linux uses that for
        msdosfs.
     -  In the Linux mount path convert vfat passed in to msdosfs
        so Linux mount works on FreeBSD.  Note that tasting works
        so that if da0 is a msdos file system
                /compat/linux/bin/mount /dev/da0 /mnt
        works.
     -  fix a 64it bug for l_off_t.
Grabing sh, mount, fdisk, df from Linux, creating a symlink of mtab to
/compat/linux/etc/mtab and then some careful unpacking of the Linux bmc
update tool and hacking makes it work on newer Dell boxes.  Note, probably
if you can't figure out how to do this, then you probably shouldn't be
doing it :-)
2009-03-26 17:14:22 +00:00
Weongyo Jeong
577b9fa3f8 Some NDIS USB drivers try to call URB funcs like URB_FUNCTION_VENDOR_xxx
or URB_FUNCTION_CLASS_xxx with HAL preemption lock that means it's
non-sleepable during USB requests though usb2_do_request() requires a
sleep so it needs to send queries to the default pipe without those
interfaces to avoid sleep.
2009-03-18 02:38:35 +00:00
Weongyo Jeong
08e06b60c1 If the caller sets irp_usriostat or irp_usrevent it try to process it
whatever the IRP flag is because some drivers (eg. RTL8187L NDIS driver)
call IoCompleteRequest() without setting flags.  It will prevent waiting
a event forever at attach.
2009-03-18 01:57:54 +00:00
Konstantin Belousov
3ff063577b Supply AT_EXECPATH auxinfo entry to the interpreter, both for native and
compat32 binaries.

Tested by:	pho
Reviewed by:	kan
2009-03-17 12:53:28 +00:00
Weongyo Jeong
8d3fb5e2bc grab NDIS USB lock instead of HAL preemption. This change should be
happened in the previous.
2009-03-17 05:57:43 +00:00
Weongyo Jeong
d3947a869c use usb2_desc_foreach() to iterate the USB config descriptor instread of
accessing structures directly to check some invalid descriptors.

Pointed by:	hps
2009-03-16 11:19:07 +00:00
Dmitry Chagin
731aded86d Sort include files in the alphabetical order.
Approved by:	kib (mentor)
MFC after:	2 weeks
2009-03-16 05:39:37 +00:00
Dmitry Chagin
b41a7787e1 Ignore FUTEX_FD op, as it is done by linux.
Approved by:	kib (mentor)
MFC after:	2 weeks
2009-03-15 19:38:34 +00:00
Dmitry Chagin
3b8cbbded3 Include linux_futex.h before linux_emul.h
Approved by:	kib (mentor)
MFC after:	6 days
2009-03-15 19:16:12 +00:00
Dmitry Chagin
32c01de21c Implement new way of branding ELF binaries by looking to a
".note.ABI-tag" section.

The search order of a brand is changed, now first of all the
".note.ABI-tag" is looked through.

Move code which fetch osreldate for ELF binary to check_note() handler.

PR:		118473
Approved by:	kib (mentor)
2009-03-13 16:40:51 +00:00
Weongyo Jeong
2c964f43b6 o change a lock model based on HAL preemption lock to a normal mtx.
Based on the HAL preemption lock there is a problem on SMP machines
  and causes a panic.
o When a device detached the current tactic to detach NDIS USB driver is
  to call SURPRISE_REMOVED event.  So it don't need to call
  ndis_halt_nic() again.  This fixes some page faults when some drivers
  work abnormal.
o it assumes now that URB_FUNCTION_BULK_OR_INTERRUPT_TRANSFER is in
  DISPATCH_LEVEL (non-sleepable) and as further work
  URB_FUNCTION_VENDOR_XXX and URB_FUNCTION_CLASS_XXX should be.

Reviewed by:	Hans Petter Selasky <hselasky_at_freebsd.org>
Tested by:	Paul B. Mahol <onemda_at_gmail.com>
2009-03-12 02:51:55 +00:00
Weongyo Jeong
6affafd098 o port NDIS USB support from USB1 to the new usb(USB2).
o implement URB_FUNCTION_ABORT_PIPE handling.
o remove unused code related with canceling the timer list for USB
  drivers.
o whitespace cleanup and style(9)

Obtained from:	hps's original patch
2009-03-07 07:26:22 +00:00
John Baldwin
2ee8325f42 A better fix for handling different FPU initial control words for different
ABIs:
- Store the FPU initial control word in the pcb for each thread.
- When first using the FPU, load the initial control word after restoring
  the clean state if it is not the standard control word.
- Provide a correct control word for Linux/i386 binaries under
  FreeBSD/amd64.
- Adjust the control word returned for fpugetregs()/npxgetregs() when a
  thread hasn't used the FPU yet to reflect the real initial control
  word for the current ABI.
- The Linux/i386 ABI for FreeBSD/i386 now properly sets the right control
  word instead of trashing whatever the current state of the FPU is.

Reviewed by:	bde
2009-03-05 19:42:11 +00:00
Dmitry Chagin
4d7c2e8a48 Add AT_PLATFORM, AT_HWCAP and AT_CLKTCK auxiliary vector entries which
are used by glibc. This silents the message "2.4+ kernel w/o ELF notes?"
from some programs at start, among them are top and pkill.

Do the assignment of the vector entries in elf_linux_fixup()
as it is done in glibc.

Fix some minor style issues.

Submitted by:	Marcin Cieslak <saper at SYSTEM PL>
Approved by:	kib (mentor)
MFC after:	1 week
2009-03-04 12:14:33 +00:00
Jamie Gritton
f86bce5ed0 Extend the "vfsopt" mount options for more general use. Make struct
vfsopt and the vfs_buildopts function public, and add some new fields
to struct vfsopt (pos and seen), and new functions vfs_getopt_pos and
vfs_opterror.

Further extend the interface to allow reading options from the kernel
in addition to sending them to the kernel, with vfs_setopt and related
functions.

While this allows the "name=value" option interface to be used for more
than just FS mounts (planned use is for jails), it retains the current
"vfsopt" name and <sys/mount.h> requirement.

Approved by:	bz (mentor)
2009-03-02 23:26:30 +00:00
Bjoern A. Zeeb
33553d6e99 For all files including net/vnet.h directly include opt_route.h and
net/route.h.

Remove the hidden include of opt_route.h and net/route.h from net/vnet.h.

We need to make sure that both opt_route.h and net/route.h are included
before net/vnet.h because of the way MRT figures out the number of FIBs
from the kernel option. If we do not, we end up with the default number
of 1 when including net/vnet.h and array sizes are wrong.

This does not change the list of files which depend on opt_route.h
but we can identify them now more easily.
2009-02-27 14:12:05 +00:00
Roman Divacky
af83f5d77c Change the functions to ANSI in those cases where it breaks promotion
to int rule. See ISO C Standard: SS6.7.5.3:15.

Approved by:	kib (mentor)
Reviewed by:	warner
Tested by:	silence on -current
2009-02-24 18:09:31 +00:00
Andrew Thompson
3975e3a1ea Move usb to a graveyard location under sys/legacy/dev, it is intended that the
new USB2 stack will fully replace this for 8.0.

Remove kernel modules, a subsequent commit will update conf/files. Unhook
usbdevs from the build.
2009-02-23 18:16:17 +00:00
Ed Schouten
0eee862a54 Don't make Linux stat() open character devices to resolve its name.
The existing code calls kern_open() to resolve the vnode of a pathname
right after a stat(). This is not correct, because it causes random
character devices to be opened in /dev. This means ls'ing a tape
streamer will cause it to rewind, for example. Changes I have made:

- Add kern_statat_vnhook() to allow binary emulators to `post-process'
  struct stat, using the proper vnode.

- Remove unneeded printf's from stat() and statfs().

- Make the Linuxolator use kern_statat_vnhook(), replacing
  translate_path_major_minor_at().

- Let translate_fd_major_minor() use vp->v_rdev instead of
  vp->v_un.vu_cdev.

Result:

	crw-rw-rw- 1 root root   0, 14 Feb 20 13:54 /dev/ptmx
	crw--w---- 1 root adm  136,  0 Feb 20 14:03 /dev/pts/0
	crw--w---- 1 root adm  136,  1 Feb 20 14:02 /dev/pts/1
	crw--w---- 1 ed   tty  136,  2 Feb 20 14:03 /dev/pts/2

Before this commit, ptmx also had a major number of 136, because it
silently allocated and deallocated a pseudo-terminal. Device nodes that
cannot be opened now have proper major/minor-numbers.

Reviewed by:	kib, netchild, rdivacky (thanks!)
2009-02-20 13:05:29 +00:00
John Baldwin
ea77ff0a15 Use shared vnode locks when invoking VOP_READDIR().
MFC after:	1 month
2009-02-13 18:18:14 +00:00
John Baldwin
3d744ccdd2 Fix a bug in the previous change to the mtab handler: use the path returned
by vn_fullpath() when vn_fullpath() succeeds instead of when it fails.

Submitted by:	Artem Belevich  fbsdlist of src.cx
MFC after:	3 days
2009-02-13 15:32:03 +00:00
Alexander Leidinger
0134f12f7a Fix an edge-case of the linux readdir: We need the size of a linux dirent
structure, not the size of a pointer to it.

PR:		131099
Submitted by:	Andreas Kies <andikies@gmail.com>
MFC after:	2 weeks
2009-02-13 11:55:19 +00:00
David E. O'Brien
e6493bbebf Change some movl's to mov's. Newer GAS no longer accept 'movl' instructions
for moving between a segment register and a 32-bit memory location.

Looked at by:	jhb
2009-01-31 11:37:21 +00:00
Ed Schouten
a4611ab612 Last step of splitting up minor and unit numbers: remove minor().
Inside the kernel, the minor() function was responsible for obtaining
the device minor number of a character device. Because we made device
numbers dynamically allocated and independent of the unit number passed
to make_dev() a long time ago, it was actually a misnomer. If you really
want to obtain the device number, you should use dev2udev().

We already converted all the drivers to use dev2unit() to obtain the
device unit number, which is still used by a lot of drivers. I've
noticed not a single driver passes NULL to dev2unit(). Even if they
would, its behaviour would make little sense. This is why I've removed
the NULL check.

Ths commit removes minor(), minor2unit() and unit2minor() from the
kernel. Because there was a naming collision with uminor(), we can
rename umajor() and uminor() back to major() and minor(). This means
that the makedev(3) manual page also applies to kernel space code now.

I suspect umajor() and uminor() isn't used that often in external code,
but to make it easier for other parties to port their code, I've
increased __FreeBSD_version to 800062.
2009-01-28 17:57:16 +00:00
Jung-uk Kim
34fe89473f Replace couple of strcmp(cpu_vendor, "foo") with cpu_vendor_id for i386
and hide i386-specific code under #ifdef.
2009-01-22 17:06:33 +00:00
Ed Schouten
ddf9d24349 Push down Giant inside sysctl. Also add some more assertions to the code.
In the existing code we didn't really enforce that callers hold Giant
before calling userland_sysctl(), even though there is no guarantee it
is safe. Fix this by just placing Giant locks around the call to the oid
handler. This also means we only pick up Giant for a very short period
of time. Maybe we should add MPSAFE flags to sysctl or phase it out all
together.

I've also added SYSCTL_LOCK_ASSERT(). We have to make sure sysctl_root()
and name2oid() are called with the sysctl lock held.

Reviewed by:	Jille Timmermans <jille quis cx>
2008-12-29 12:58:45 +00:00
Konstantin Belousov
22a448c4d9 vm_map_lock_read() does not increment map->timestamp, so we should
compare map->timestamp with saved timestamp after map read lock is
reacquired, not with saved timestamp + 1. The only consequence of the +1
was unconditional lookup of the next map entry, though.

Tested by:	pho
Approved by:	des
MFC after:	2 weeks
2008-12-29 12:45:11 +00:00
Ganbold Tsagaankhuu
dff1491c74 Remove unused variable.
Found with:     Coverity Prevent(tm)
CID: 542

Approved by: weongyo
2008-12-28 13:50:58 +00:00
Weongyo Jeong
e3a7c990ff fix a bug to handling the argument that it passed `device_t' but it's
handled as `struct ndis_softc'.  It'll cause a panic when the driver is
detached.
2008-12-27 09:42:17 +00:00
Weongyo Jeong
b3974c00b5 Integrate the NDIS USB support code to CURRENT.
Now the NDISulator supports NDIS USB drivers that it've tested with
devices as follows:

  - Anygate XM-142 (Conexant)
  - Netgear WG111v2 (Realtek)
  - U-Khan UW-2054u (Marvell)
  - Shuttle XPC Accessory PN20 (Realtek)
  - ipTIME G054U2 (Ralink)
  - UNiCORN WL-54G (ZyDAS)
  - ZyXEL G-200v2 (ZyDAS)

All of them succeeded to attach and worked though there are still some
problems that it's expected to be solved.

To use NDIS USB support, you should rebuild and install ndiscvt(8) and
if you encounter a problem to attach please set `hw.ndisusb.halt' to
0 then retry.

I expect no changes of the NDIS code for PCI, PCMCIA devices.

Obtained from:  //depot/projects/ndisusb/...
2008-12-27 08:03:32 +00:00
Konstantin Belousov
6f3475454e Remove two remnant uses of AT_DEBUG. 2008-12-17 13:13:35 +00:00
Konstantin Belousov
c7462f4387 Reference the vmspace of the process being inspected by procfs, linprocfs
and sysctl kern_proc_vmmap handlers.

Reported and tested by:	pho
Reviewed by:	rwatson, des
MFC after:	1 week
2008-12-12 12:12:36 +00:00
Bjoern A. Zeeb
b2dbdae9f3 Add 32-bit compat support for AIO.
jhb probably forgot to commit this file with r185878 and will want to
review this. It unbreaks the build here.

Obtained from:	p4 //depot/user/jhb/lock/compat/freebsd32/freebsd32_signal.h#2
2008-12-11 00:58:05 +00:00
John Baldwin
5d8d23c71b Regen. 2008-12-10 20:57:16 +00:00
John Baldwin
3858a1f4f5 - Add 32-bit compat system calls for VFS_AIO. The system calls live in the
aio code and are registered via the recently added SYSCALL32_*() helpers.
- Since the aio code likes to invoke fuword and suword a lot down in the
  "bowels" of system calls, add a structure holding a set of operations for
  things like storing errors, copying in the aiocb structure, storing
  status, etc.  The 32-bit system calls use a separate operations vector to
  handle fuword32 vs fuword, etc.  Also, the oldsigevent handling is now
  done by having seperate operation vectors with different aiocb copyin
  routines.
- Split out kern_foo() functions for the various AIO system calls so the
  32-bit front ends can manage things like copying in and converting
  timespec structures, etc.
- For both the native and 32-bit aio_suspend() and lio_listio() calls,
  just use copyin() to read the array of aiocb pointers instead of using
  a for loop that iterated over fuword/fuword32.  The error handling in
  the old case was incomplete (lio_listio() just ignored any aiocb's that
  it got an EFAULT trying to read rather than reporting an error), and
  possibly slower.

MFC after:	1 month
2008-12-10 20:56:19 +00:00
Konstantin Belousov
c96f374195 Relock user map earlier, to have the lock held when break leaves the
loop earlier due to sbuf error.

Pointy hat to:	me
Submitted by:	dchagin
2008-12-10 16:11:09 +00:00
Konstantin Belousov
9499cb83bf Make two style changes to create new commit and document proper commit
message for r185765.

Noted by:	rdivacky
Requested by:	des

Commit message for r185765 should be:
In procfs map handler, and in linprocfs maps handler, do not call
vn_fullpath() while having vm map locked. This is done in anticipation
of the vop_vptocnp commit, that would make vn_fullpath sometime
acquire vnode lock.

Also, in linprocfs, maps handler already acquires vnode lock.

No objections from:	des
MFC after:	2 week
2008-12-08 13:15:31 +00:00
Konstantin Belousov
5a66e0259b 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
2008-12-08 12:34:52 +00:00
John Baldwin
3cdf485f87 When unloading a 32-bit system call module, restore the sysent vector in
the 32-bit system call table instead of the main system call table.
2008-12-03 18:45:38 +00:00
Bjoern A. Zeeb
4b79449e2f Rather than using hidden includes (with cicular dependencies),
directly include only the header files needed. This reduces the
unneeded spamming of various headers into lots of files.

For now, this leaves us with very few modules including vnet.h
and thus needing to depend on opt_route.h.

Reviewed by:	brooks, gnn, des, zec, imp
Sponsored by:	The FreeBSD Foundation
2008-12-02 21:37:28 +00:00
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