Commit Graph

1985 Commits

Author SHA1 Message Date
Dimitry Andric
84143cee4f In sys/compat/ndis/subr_ntoskrnl.c, change the RtlFillMemory function
definition from K&R to ANSI, to avoid a clang warning about the uint8_t
parameter being promoted to int, which is not compatible with the type
declared in the earlier prototype.

MFC after:	1 week
2011-12-30 17:18:09 +00:00
John Baldwin
dd01579cde Implement linux_fadvise64() and linux_fadvise64_64() using
kern_posix_fadvise().

Reviewed by:	silence on emulation@
MFC after:	2 weeks
2011-12-29 15:34:59 +00:00
Mikolaj Golub
022eba3410 Protect process environment variables with p_candebug().
Discussed with:	jilles, kib, rwatson
MFC after:	2 weeks
2011-12-04 21:43:13 +00:00
Mikolaj Golub
7a837e17ba Retire linprocfs_doargv(). Instead use new functions, proc_getargv()
and proc_getenvv(), which were implemented using linprocfs_doargv() as
a reference.

Suggested by:	kib
Reviewed by:	kib
Approved by:	des (linprocfs maintainer)
MFC after:	2 weeks
2011-11-22 20:45:11 +00:00
Lawrence Stewart
cf13a58510 - Add the ffclock_getcounter(), ffclock_getestimate() and ffclock_setestimate()
system calls to provide feed-forward clock management capabilities to
  userspace processes. ffclock_getcounter() returns the current value of the
  kernel's feed-forward clock counter. ffclock_getestimate() returns the current
  feed-forward clock parameter estimates and ffclock_setestimate() updates the
  feed-forward clock parameter estimates.

- Document the syscalls in the ffclock.2 man page.

- Regenerate the script-derived syscall related files.

Committed on behalf of Julien Ridoux and Darryl Veitch from the University of
Melbourne, Australia, as part of the FreeBSD Foundation funded "Feed-Forward
Clock Synchronization Algorithms" project.

For more information, see http://www.synclab.org/radclock/

Submitted by:	Julien Ridoux (jridoux at unimelb edu au)
2011-11-21 01:26:10 +00:00
Ed Schouten
767a32641c Make the Linux *at() calls a bit more complete.
Properly support:

- AT_EACCESS for faccessat(),
- AT_SYMLINK_FOLLOW for linkat().
2011-11-19 07:19:37 +00:00
Ed Schouten
51cfb9474f Regenerate system call tables. 2011-11-19 06:36:11 +00:00
Ed Schouten
d3a993d46b Improve *access*() parameter name consistency.
The current code mixes the use of `flags' and `mode'. This is a bit
confusing, since the faccessat() function as a `flag' parameter to store
the AT_ flag.

Make this less confusing by using the same name as used in the POSIX
specification -- `amode'.
2011-11-19 06:35:15 +00:00
John Baldwin
7edec6214e - Split out a kern_posix_fadvise() from the posix_fadvise() system call so
it can be used by in-kernel consumers.
- Make kern_posix_fallocate() public.
- Use kern_posix_fadvise() and kern_posix_fallocate() to implement the
  freebsd32 wrappers for the two system calls.
2011-11-14 18:00:15 +00:00
Sergey Kandaurov
81f7f2c4db struct timespec32: change types of tv_sec and tv_nsec fields to signed
to match native struct timespec ABI on __LP32__.

This change is a prerequisite for upcoming futimens()/utimensat() in whose
implementations it is assumed that timespec32 can take a negative value.

MFC after:	1 week
2011-11-11 07:17:00 +00:00
Ryan Stone
493b584dbd Correct the types of the arguments to return probes of the syscall
provider.  Previously we were erroneously supplying the argument types of
the corresponding entry probe.

Reviewed by:	rpaulo
MFC after:	1 week
2011-11-11 03:49:42 +00:00
Ed Schouten
6472ac3d8a Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs.
The SYSCTL_NODE macro defines a list that stores all child-elements of
that node. If there's no SYSCTL_DECL macro anywhere else, there's no
reason why it shouldn't be static.
2011-11-07 15:43:11 +00:00
Ed Schouten
d745c852be Mark MALLOC_DEFINEs static that have no corresponding MALLOC_DECLAREs.
This means that their use is restricted to a single C file.
2011-11-07 06:44:47 +00:00
John Baldwin
cd06ae5c1b Regen. 2011-11-04 04:06:31 +00:00
John Baldwin
936c09ac0f Add the posix_fadvise(2) system call. It is somewhat similar to
madvise(2) except that it operates on a file descriptor instead of a
memory region.  It is currently only supported on regular files.

Just as with madvise(2), the advice given to posix_fadvise(2) can be
divided into two types.  The first type provide hints about data access
patterns and are used in the file read and write routines to modify the
I/O flags passed down to VOP_READ() and VOP_WRITE().  These modes are
thus filesystem independent.  Note that to ease implementation (and
since this API is only advisory anyway), only a single non-normal
range is allowed per file descriptor.

The second type of hints are used to hint to the OS that data will or
will not be used.  These hints are implemented via a new VOP_ADVISE().
A default implementation is provided which does nothing for the WILLNEED
request and attempts to move any clean pages to the cache page queue for
the DONTNEED request.  This latter case required two other changes.
First, a new V_CLEANONLY flag was added to vinvalbuf().  This requests
vinvalbuf() to only flush clean buffers for the vnode from the buffer
cache and to not remove any backing pages from the vnode.  This is
used to ensure clean pages are not wired into the buffer cache before
attempting to move them to the cache page queue.  The second change adds
a new vm_object_page_cache() method.  This method is somewhat similar to
vm_object_page_remove() except that instead of freeing each page in the
specified range, it attempts to move clean pages to the cache queue if
possible.

To preserve the ABI of struct file, the f_cdevpriv pointer is now reused
in a union to point to the currently active advice region if one is
present for regular files.

Reviewed by:	jilles, kib, arch@
Approved by:	re (kib)
MFC after:	1 month
2011-11-04 04:02:50 +00:00
Konstantin Belousov
126b36a21e Control the execution permission of the readable segments for
i386 binaries on the amd64 and ia64 with the sysctl, instead of
unconditionally enabling it.

Reviewed by:	marcel
2011-10-15 12:35:18 +00:00
John Baldwin
660d55fb88 Regen. 2011-10-14 11:47:14 +00:00
John Baldwin
f940342426 Use PAIR32TO64() for the offset and length parameters to
freebsd32_posix_fallocate() to properly handle big-endian platforms.

Reviewed by:	mdf
MFC after:	1 week
2011-10-14 11:46:46 +00:00
Marcel Moolenaar
90fd594a1d Use PTRIN(). 2011-10-13 22:33:03 +00:00
Marcel Moolenaar
f8244106ab Wrap mprotect(2) so that we can add execute permissions when read
permissions are requested. This is needed on amd64 and ia64 for
JDK 1.4.x
2011-10-13 18:25:10 +00:00
Marcel Moolenaar
eb8afcd36a Wrap mprotect(2) 2011-10-13 18:21:11 +00:00
Marcel Moolenaar
488a16050c In freebsd32_mmap() and when compiling for amd64 or ia64, also
ask for execute permissions when read permissions are wanted.
This is needed for JDK 1.4.x on i386.
2011-10-13 18:18:42 +00:00
Christian Brueffer
796fa5e465 Add curly braces missed in r226247.
Pointy hat to:	brueffer
Submitted by:	many
MFC after:	1 week
2011-10-11 13:40:37 +00:00
Christian Brueffer
05ad7ad667 Properly free linux_gidset in case of an error.
CID:		4136
Found with:	Coverity Prevent(tm)
MFC after:	1 week
2011-10-11 10:32:23 +00:00
Jung-uk Kim
bf3a36cc7b Use the caculated length instead of maximum length. 2011-10-06 21:55:05 +00:00
Jung-uk Kim
b6f96462ba Remove a now-defunct variable. 2011-10-06 21:40:08 +00:00
Jung-uk Kim
3106d6704b Use uint32_t instead of u_int32_t. Fix style(9) nits. 2011-10-06 21:17:46 +00:00
Jung-uk Kim
c02637c717 Make sure to ignore the leading NULL byte from Linux abstract namespace. 2011-10-06 21:09:28 +00:00
Jung-uk Kim
f05531a392 Restore the original socket address length if it was not really AF_INET6. 2011-10-06 20:48:23 +00:00
Jung-uk Kim
43399111a7 Retern more appropriate errno when Linux path name is too long. 2011-10-06 20:28:08 +00:00
Jung-uk Kim
0007f669ca Inline do_sa_get() function and remove an unused return value. 2011-10-06 20:20:30 +00:00
Jung-uk Kim
c15cdbf2f3 Unroll inlined strnlen(9) and make it easier to read. No functional change. 2011-10-06 19:59:14 +00:00
Colin Percival
5da3eb94fc Fix a bug in UNIX socket handling in the linux emulator which was
exposed by the security fix in FreeBSD-SA-11:05.unix.

Approved by:	so (cperciva)
Approved by:	re (kib)
Security:	Related to FreeBSD-SA-11:05.unix, but not actually
		a security fix.
2011-10-04 19:07:38 +00:00
Kip Macy
9eca9361f9 Auto-generated code from sys_ prefixing makesyscalls.sh change
Approved by:	re(bz)
2011-09-16 14:04:14 +00:00
Kip Macy
8451d0dd78 In order to maximize the re-usability of kernel code in user space this
patch modifies makesyscalls.sh to prefix all of the non-compatibility
calls (e.g. not linux_, freebsd32_) with sys_ and updates the kernel
entry points and all places in the code that use them. It also
fixes an additional name space collision between the kernel function
psignal and the libc function of the same name by renaming the kernel
psignal kern_psignal(). By introducing this change now we will ease future
MFCs that change syscalls.

Reviewed by:	rwatson
Approved by:	re (bz)
2011-09-16 13:58:51 +00:00
Jonathan Anderson
cfb5f76865 Add experimental support for process descriptors
A "process descriptor" file descriptor is used to manage processes
without using the PID namespace. This is required for Capsicum's
Capability Mode, where the PID namespace is unavailable.

New system calls pdfork(2) and pdkill(2) offer the functional equivalents
of fork(2) and kill(2). pdgetpid(2) allows querying the PID of the remote
process for debugging purposes. The currently-unimplemented pdwait(2) will,
in the future, allow querying rusage/exit status. In the interim, poll(2)
may be used to check (and wait for) process termination.

When a process is referenced by a process descriptor, it does not issue
SIGCHLD to the parent, making it suitable for use in libraries---a common
scenario when using library compartmentalisation from within large
applications (such as web browsers). Some observers may note a similarity
to Mach task ports; process descriptors provide a subset of this behaviour,
but in a UNIX style.

This feature is enabled by "options PROCDESC", but as with several other
Capsicum kernel features, is not enabled by default in GENERIC 9.0.

Reviewed by: jhb, kib
Approved by: re (kib), mentor (rwatson)
Sponsored by: Google Inc
2011-08-18 22:51:30 +00:00
Robert Watson
a9d2f8d84f Second-to-last commit implementing Capsicum capabilities in the FreeBSD
kernel for FreeBSD 9.0:

Add a new capability mask argument to fget(9) and friends, allowing system
call code to declare what capabilities are required when an integer file
descriptor is converted into an in-kernel struct file *.  With options
CAPABILITIES compiled into the kernel, this enforces capability
protection; without, this change is effectively a no-op.

Some cases require special handling, such as mmap(2), which must preserve
information about the maximum rights at the time of mapping in the memory
map so that they can later be enforced in mprotect(2) -- this is done by
narrowing the rights in the existing max_protection field used for similar
purposes with file permissions.

In namei(9), we assert that the code is not reached from within capability
mode, as we're not yet ready to enforce namespace capabilities there.
This will follow in a later commit.

Update two capability names: CAP_EVENT and CAP_KEVENT become
CAP_POST_KEVENT and CAP_POLL_KEVENT to more accurately indicate what they
represent.

Approved by:	re (bz)
Submitted by:	jonathan
Sponsored by:	Google Inc
2011-08-11 12:30:23 +00:00
Konstantin Belousov
dda4f96087 Implement the linprocfs swaps file, providing information about the
configured swap devices in the Linux-compatible format.

Based on the submission by:	Robert Millan <rmh debian org>
PR:	kern/159281
Reviewed by:	bde
Approved by:	re (kensmith)
MFC after:	2 weeks
2011-08-01 19:12:15 +00:00
Bjoern A. Zeeb
925af54487 Rename ki_ocomm to ki_tdname and OCOMMLEN to TDNAMLEN.
Provide backward compatibility defines under BURN_BRIDGES.

Suggested by:	jhb
Reviewed by:	emaste
Sponsored by:	Sandvine Incorporated
Approved by:	re (kib)
2011-07-18 20:06:15 +00:00
Dmitry Morozovsky
6edeb2c725 Correct small typo in a do{}while(0) define
Approved by:	kib
MFC after:	2 weeks
2011-07-17 17:12:17 +00:00
Bjoern A. Zeeb
74d7a2539e Remove the 'either' from the comment as it'll be less obvious that we
removed semmap in a bit of time from now.   Re-wrap.

Suggested by:	jhb
2011-07-17 05:33:22 +00:00
Jonathan Anderson
63ba8b5ede Auto-generated system call code with cap_new(), cap_getrights().
Approved by: mentor (rwatson), re (Capsicum blanket)
Sponsored by: Google Inc
2011-07-15 18:33:12 +00:00
Jonathan Anderson
cfb9df5541 Add cap_new() and cap_getrights() system calls.
Implement two previously-reserved Capsicum system calls:
- cap_new() creates a capability to wrap an existing file descriptor
- cap_getrights() queries the rights mask of a capability.

Approved by: mentor (rwatson), re (Capsicum blanket)
Sponsored by: Google Inc
2011-07-15 18:26:19 +00:00
Bjoern A. Zeeb
1080a2c85d Remove semaphore map entry count "semmap" field and its tuning
option that is highly recommended to be adjusted in too much
documentation while doing nothing in FreeBSD since r2729 (rev 1.1).

ipcs(1) needs to be recompiled as it is accessing _KERNEL private
variables.

Reviewed by:	jhb (before comment change on linux code)
Sponsored by:	Sandvine Incorporated
2011-07-14 14:18:14 +00:00
Sergey Kandaurov
e0607dec4d Return empty cmdline/environ string for processes with kernel address
space. This is consistent with the behavior in linux.

PR:		kern/157871
Reported by:	Petr Salinger <Petr Salinger att seznam cz>
Verified on:	GNU/kFreeBSD debian 8.2-1-amd64 (by reporter)
Reviewed by:	kib (some time ago)
MFC after:	2 weeks
2011-06-17 07:30:56 +00:00
Konstantin Belousov
160e5953c2 Regen. 2011-06-16 22:06:35 +00:00
Konstantin Belousov
7181217886 Implement compat32 for old lseek, for the a.out binaries on amd64. 2011-06-16 22:05:56 +00:00
Alexander Leidinger
f4cb7c85e6 Commit the missing linux_videdev2_compat.h (lost somewhere between
commit tree patch generation -> successful compile tree build test -> commmit).

Pointy hat to:	netchild
2011-05-04 13:09:20 +00:00
Alexander Leidinger
60c6d23685 Add FEATURE macros for v4l and v4l2 to the linuxulator.
Suggested by:	ae
2011-05-04 09:52:34 +00:00
Alexander Leidinger
15bf9014c9 This is v4l2 support for the linuxulator. This allows to access FreeBSD
native devices which support the v4l2 API from processes running within
the linuxulator, e.g. skype or flash can access the multimedia/pwcbsd
or multimedia/webcamd supplied drivers.

Submitted by:	nox
MFC after:	1 month
2011-05-04 09:05:39 +00:00
Alexander Leidinger
4c94038794 Fix typo in comment, improve comment. 2011-05-04 08:42:31 +00:00
Alexander Leidinger
d0f5ca6d40 Add explanation about the use-permission and FreeBSDify it. 2011-05-04 08:41:55 +00:00
Alexander Leidinger
41ebeb8e6f Copy the v4l2 header unchanged from the vendor branch. 2011-05-04 08:31:58 +00:00
Matthew D Fleming
7323776b01 Regen. 2011-04-18 16:32:47 +00:00
Matthew D Fleming
d91f88f7f3 Add the posix_fallocate(2) syscall. The default implementation in
vop_stdallocate() is filesystem agnostic and will run as slow as a
read/write loop in userspace; however, it serves to correctly
implement the functionality for filesystems that do not implement a
VOP_ALLOCATE.

Note that __FreeBSD_version was already bumped today to 900036 for any
ports which would like to use this function.

Also reserve space in the syscall table for posix_fadvise(2).

Reviewed by:	-arch (previous version)
2011-04-18 16:32:22 +00:00
Edward Tomasz Napierala
c21e81c87e Remove stray semicolon. 2011-04-10 10:15:49 +00:00
Jung-uk Kim
3453537fa5 Use atomic load & store for TSC frequency. It may be overkill for amd64 but
safer for i386 because it can be easily over 4 GHz now.  More worse, it can
be easily changed by user with 'machdep.tsc_freq' tunable (directly) or
cpufreq(4) (indirectly).  Note it is intentionally not used in performance
critical paths to avoid performance regression (but we should, in theory).
Alternatively, we may add "virtual TSC" with lower frequency if maximum
frequency overflows 32 bits (and ignore possible incoherency as we do now).
2011-04-07 23:28:28 +00:00
Edward Tomasz Napierala
1ba5ad4210 Add accounting for most of the memory-related resources.
Sponsored by:	The FreeBSD Foundation
Reviewed by:	kib (earlier version)
2011-04-05 20:23:59 +00:00
Konstantin Belousov
78272eedf0 Implement compat32 shims for PCIOCGETCONF.
There is a generic problem with the shims for ioctls that receive
pointers to the usermode data areas in the data argument. We either have
to modify the handler to accept UIO_USERSPACE/UIO_SYSSPACE indicator, or
allocate and fill a usermode memory for data buffer in the host format.
The change goes the second route, in particular because we do not need
to modify the handler.

Submitted by:	John Wehle <john feith com>
MFC after:	2 weeks
2011-04-02 16:02:25 +00:00
Konstantin Belousov
4ee107ddc9 Provide the structures and ioctl number definition for handling
PCIOCGETCONF compat32.

Submitted by:	John Wehle <john feith com>
MFC after:	2 weeks
2011-04-02 15:47:23 +00:00
Konstantin Belousov
c3b2c0520b Regen 2011-04-01 11:16:53 +00:00
Konstantin Belousov
7332c129e0 Add support for executing the FreeBSD 1/i386 a.out binaries on amd64.
In particular:
- implement compat shims for old stat(2) variants and ogetdirentries(2);
- implement delivery of signals with ancient stack frame layout and
  corresponding sigreturn(2);
- implement old getpagesize(2);
- provide a user-mode trampoline and LDT call gate for lcall $7,$0;
- port a.out image activator and connect it to the build as a module
  on amd64.

The changes are hidden under COMPAT_43.

MFC after:   1 month
2011-04-01 11:16:29 +00:00
Andriy Gapon
a930718af1 Revert r220032:linux compat: add SO_PASSCRED option with basic handling
I have not properly thought through the commit.  After r220031 (linux
compat: improve and fix sendmsg/recvmsg compatibility) the basic
handling for SO_PASSCRED is not sufficient as it breaks recvmsg
functionality for SCM_CREDS messages because now we would need to handle
sockcred data in addition to cmsgcred.  And that is not implemented yet.

Pointyhat to:	avg
2011-03-31 08:14:51 +00:00
Edward Tomasz Napierala
66db16fc49 Regenerate. 2011-03-30 17:59:54 +00:00
Edward Tomasz Napierala
ec125fbbc5 Add rctl. It's used by racct to take user-configurable actions based
on the set of rules it maintains and the current resource usage.  It also
privides userland API to manage that ruleset.

Sponsored by:	The FreeBSD Foundation
Reviewed by:	kib (earlier version)
2011-03-30 17:48:15 +00:00
Konstantin Belousov
eea5c61835 Regen. 2011-03-30 14:46:55 +00:00
Konstantin Belousov
8666550972 Provide compat32 shims for kldstat(2).
Requested and tested by:	jpaetzel
MFC after:	1 week
2011-03-30 14:46:12 +00:00
Andriy Gapon
01a9e1a11b linux compat: add SO_PASSCRED option with basic handling
This seems to have been a part of a bigger patch by dchagin that either
haven't been committed or committed partially.

Submitted by:	dchagin, nox
MFC after:	2 weeks
2011-03-26 11:25:36 +00:00
Andriy Gapon
605da56bc3 linux compat: improve and fix sendmsg/recvmsg compatibility
- implement baseic stubs for capget, capset, prctl PR_GET_KEEPCAPS
  and prctl PR_SET_KEEPCAPS.
- add SCM_CREDS support to sendmsg and recvmsg
- modify sendmsg to ignore control messages if not using UNIX
  domain sockets

This should allow linux pulse audio daemon and client work on FreeBSD
and interoperate with native counter-parts modulo the differences in
pulseaudio versions.

PR:		kern/149168
Submitted by:	John Wehle <john@feith.com>
Reviewed by:	netchild
MFC after:	2 weeks
2011-03-26 11:05:53 +00:00
Konstantin Belousov
bfac1583db Implement compat32 MEMRANGE_GET and MEMRANGE_SET. This is needed to
run 32bit Xorg server with VESA driver.

Submitted by:	John Wehle <john feith com>
MFC after:	1 week
2011-03-25 11:52:31 +00:00
Konstantin Belousov
bc13c742fa Fully emulate MDIOCLIST for compat32.
MFC after:	1 week
2011-03-25 11:43:49 +00:00
Konstantin Belousov
f991044ba4 Remove unneccessary panics, that can be easily triggered by user.
The copyin() function handles NULL as well as any other pointer.

MFC after:	3 days
2011-03-25 11:05:28 +00:00
Konstantin Belousov
1e67ebb1a2 Fix file leakage in the freebsd32_ioctl routines.
Code inspection shows freebsd32_ioctl calls fget for a fd and calls
a subroutine to handle each specific ioctl.  It is expected that the
subroutine will call fdrop when done.  However many of the subroutines
will exit out early if copyin encounters an error resulting in fdrop
never being called.

Submitted by:	John Wehle <john feith com>
MFC after:	3 days
2011-03-25 10:57:57 +00:00
John Baldwin
8e6fa660f2 Fix some locking nits with the p_state field of struct proc:
- Hold the proc lock while changing the state from PRS_NEW to PRS_NORMAL
  in fork to honor the locking requirements.  While here, expand the scope
  of the PROC_LOCK() on the new process (p2) to avoid some LORs.  Previously
  the code was locking the new child process (p2) after it had locked the
  parent process (p1).  However, when locking two processes, the safe order
  is to lock the child first, then the parent.
- Fix various places that were checking p_state against PRS_NEW without
  having the process locked to use PROC_LOCK().  Every place was already
  locking the process, just after the PRS_NEW check.
- Remove or reduce the use of PROC_SLOCK() for places that were checking
  p_state against PRS_NEW.  The PROC_LOCK() alone is sufficient for reading
  the current state.
- Reorder fill_kinfo_proc() slightly so it only acquires PROC_SLOCK() once.

MFC after:	1 week
2011-03-24 18:40:11 +00:00
Alexander Leidinger
0d7b5e545c Staticize functions which are not used somewhere else, move the
corresponding prototypes from the header to the code file.
2011-03-15 13:40:47 +00:00
Andriy Gapon
d549ef5638 add DTrace systrace support for linux32 and freebsd32 on amd64 syscalls
Regenerate system call and systrace support files.

PR:		kern/152822
Submitted by:	Artem Belevich <fbsdlist@src.cx>
Reviewed by:	jhb (earlier version)
MFC after:	3 weeks
2011-03-12 08:58:19 +00:00
Andriy Gapon
56ede1074e add DTrace systrace support for linux32 and freebsd32 on amd64 syscalls
This commits makes necessary changes in syscall/sysent generation
infrastructure.

PR:		kern/152822
Submitted by:	Artem Belevich <fbsdlist@src.cx>
Reviewed by:	jhb (ealier version)
MFC after:	3 weeks
2011-03-12 08:51:43 +00:00
Dmitry Chagin
31f7ad1545 Style(9) fixes. No functional changes.
MFC after:	2 Week
2011-03-12 07:47:05 +00:00
John Baldwin
c28a98e948 Remove now-obsolete comment.
Submitted by:	netchild
MFC after:	1 week
2011-03-10 19:50:12 +00:00
Jung-uk Kim
e09faf083f Remove custom interrupt dispatcher. This is a pointless micro-optimization
and it may cause problems if SS and SP are modified by real-mode code.

MFC after:	1 month
2011-03-09 16:16:38 +00:00
Dmitry Chagin
a2cd91cf28 Indeed, remove bogus since r219405 check of the Linux ABI.
Pointed out:	jhb

MFC after:	2 Week
2011-03-09 05:59:33 +00:00
Dmitry Chagin
e5d81ef1b5 Extend struct sysvec with new method sv_schedtail, which is used for an
explicit process at fork trampoline path instead of eventhadler(schedtail)
invocation for each child process.

Remove eventhandler(schedtail) code and change linux ABI to use newly added
sysvec method.

While here replace explicit comparing of module sysentvec structure with the
newly created process sysentvec to detect the linux ABI.

Discussed with:	kib

MFC after:	2 Week
2011-03-08 19:01:45 +00:00
Edward Tomasz Napierala
7123f4cd6f Export login class information via kinfo and make it possible to view
it using "ps -o class".
2011-03-05 14:41:49 +00:00
Edward Tomasz Napierala
e776709347 Regenerate. 2011-03-05 12:46:24 +00:00
Edward Tomasz Napierala
2bfc50bc4f Add two new system calls, setloginclass(2) and getloginclass(2). This makes
it possible for the kernel to track login class the process is assigned to,
which is required for RCTL.  This change also make setusercontext(3) call
setloginclass(2) and makes it possible to retrieve current login class using
id(1).

Reviewed by:	kib (as part of a larger patch)
2011-03-05 12:40:35 +00:00
Dmitry Chagin
3a4bc25691 Print out shared flag for debug purpose.
MFC after:	1 Week
2011-03-03 18:29:55 +00:00
Dmitry Chagin
815cb72a0c Switch PROCESS_SHARE to AUTO_SHARE (as umtx do). Even for SHARED,
if page mapped MAP_ANON linux uses private algorithm too.

Disscussed with:	jhb

MFC after:	3 Days
2011-03-03 18:19:10 +00:00
Robert Watson
ddfe0c2ba4 Regenerate system call files following addition of cap_enter(2),
cap_getmode(2), and capabilities.conf.

Reviewed by:	anderson
Discussed with:	benl, kris, pjd
Obtained from:	Capsicum Project
Sponsored by:	Google, Inc.
MFC after:	3 months
2011-03-01 13:30:23 +00:00
Robert Watson
96fcc75fdf Add initial support for Capsicum's Capability Mode to the FreeBSD kernel,
compiled conditionally on options CAPABILITIES:

Add a new credential flag, CRED_FLAG_CAPMODE, which indicates that a
subject (typically a process) is in capability mode.

Add two new system calls, cap_enter(2) and cap_getmode(2), which allow
setting and querying (but never clearing) the flag.

Export the capability mode flag via process information sysctls.

Sponsored by:	Google, Inc.
Reviewed by:	anderson
Discussed with:	benl, kris, pjd
Obtained from:	Capsicum Project
MFC after:	3 months
2011-03-01 13:23:37 +00:00
Rebecca Cran
23d5a8b50f Use the cprd_mem field when setting the start and length for a memory
resource - the layout of cprd_port is identical but using cprd_mem
makes the code easier to understand.

PR:		kern/118493
Submitted by:	Weongyo Jeong <weongyo.jeong at gmail.com>
MFC after:	3 days
2011-02-23 21:45:28 +00:00
John Baldwin
21f8f506fb Use umtx_key objects to uniquely identify futexes. Private futexes in
different processes that happen to use the same user address in the
separate processes will now be treated as distinct futexes rather than the
same futex.  We can now honor shared futexes properly by mapping them to a
PROCESS_SHARED umtx_key.  Private futexes use THREAD_SHARED umtx_key
objects.

In conjunction with:	dchagin
Reviewed by:	kib
MFC after:	1 week
2011-02-23 13:23:28 +00:00
Rebecca Cran
6bccea7c2b Fix typos - remove duplicate "the".
PR:	bin/154928
Submitted by:	Eitan Adler <lists at eitanadler.com>
MFC after: 	3 days
2011-02-21 09:01:34 +00:00
Dmitry Chagin
f9e66923e5 Do not clobber %rdx.
Before calling vfork() syscall the linux user-space stores the current PID
in the %rdx and restore it when the parent process will leave the kernel.
2011-02-20 07:58:30 +00:00
Dmitry Chagin
09d6cb0a23 For realtime signals fill the sigval value. 2011-02-15 21:46:36 +00:00
Dmitry Chagin
f3481dd9ab Make a linux_rt_sigtimedwait() system call is actually working.
1) Translate the native signal number in the appropriate Linux signal.
2) Remove bogus code, which can lead to a panic as it calls
   kern_sigtimedwait with same ksiginfo.
3) Return the corresponding signal number.
2011-02-15 21:42:48 +00:00
Dmitry Chagin
8c50c56206 Style(9) fix. Wrap long lines in linux_rt_sigtimedwait(). 2011-02-15 21:24:50 +00:00
Dmitry Chagin
d207e753da Put the macro declaration in the relevant include file for future use. 2011-02-15 21:22:09 +00:00
Dmitry Chagin
e2ef00a426 Style(9) fix. Do not initialize variables in the declarations. 2011-02-14 17:24:58 +00:00
Dmitry Chagin
49fa1a745e Sort include files in the alphabetical order. 2011-02-13 20:07:48 +00:00
Dmitry Chagin
4ca49f41ec Remove comment about 'ftlk' LOR. 2011-02-13 18:46:34 +00:00