Commit Graph

306 Commits

Author SHA1 Message Date
Julian Elischer
c28841c1da Add stub syscalls and definitions for KSE calls.
"Book'em Danno"
2002-02-19 02:40:31 +00:00
Julian Elischer
8a2c87e7c7 Add 5 KSE syscalls. Two will be implemented with the next KSE
step and the others are reservations for coming code.
All will be stubbed in this kernel in the next commit.
This will allow people to easily make KSE binaries for userland testing
(the syscalls will be in libc) but they will still need a real KSE kernel
to test it. (libc looks in /sys to decide what it should add stubs for).
2002-02-19 02:19:36 +00:00
Daniel Eischen
bc874287e9 Fix prototype to sigreturn to use struct __ucontext instead of ucontext_t. 2002-02-17 17:41:28 +00:00
Robert Watson
74237f55b0 Part I: Update extended attribute API and ABI:
o Modify the system call syntax for extattr_{get,set}_{fd,file}() so
  as not to use the scatter gather API (which appeared not to be used
  by any consumers, and be less portable), rather, accepts 'data'
  and 'nbytes' in the style of other simple read/write interfaces.
  This changes the API and ABI.

o Modify system call semantics so that extattr_get_{fd,file}() return
  a size_t.  When performing a read, the number of bytes read will
  be returned, unless the data pointer is NULL, in which case the
  number of bytes of data are returned.  This changes the API only.

o Modify the VOP_GETEXTATTR() vnode operation to accept a *size_t
  argument so as to return the size, if desirable.  If set to NULL,
  the size will not be returned.

o Update various filesystems (pseodofs, ufs) to DTRT.

These changes should make extended attributes more useful and more
portable.  More commits to rebuild the system call files, as well
as update userland utilities to follow.

Obtained from:	TrustedBSD Project
Sponsored by:	DARPA, NAI Labs
2002-02-10 04:43:22 +00:00
Bruce Evans
860965f144 Made osigreturn(2) standard so that SYS_osigreturn can be used in the
signal trampoline for old signals.  The arches that support old signals
currently abuse sigreturn(2) instead.  This mainly complicates things
and slightly breaks the the new sigreturn(2).

COMPAT is too limited to support the correct configuration of osigreturn,
and this commit doesn't attempt to fix it; it just moves the bogusness:
osigreturn() must now be provided unconditionally even on arches that
don't really need it; previously it had to be provided under the bogus
condition defined(COMPAT_43).
2002-02-01 17:27:14 +00:00
Alfred Perlstein
21d56e9c33 Make AIO a loadable module.
Remove the explicit call to aio_proc_rundown() from exit1(), instead AIO
will use at_exit(9).

Add functions at_exec(9), rm_at_exec(9) which function nearly the
same as at_exec(9) and rm_at_exec(9), these functions are called
on behalf of modules at the time of execve(2) after the image
activator has run.

Use a modified version of tegge's suggestion via at_exec(9) to close
an exploitable race in AIO.

Fix SYSCALL_MODULE_HELPER such that it's archetecuterally neutral,
the problem was that one had to pass it a paramater indicating the
number of arguments which were actually the number of "int".  Fix
it by using an inline version of the AS macro against the syscall
arguments.  (AS should be available globally but we'll get to that
later.)

Add a primative system for dynamically adding kqueue ops, it's really
not as sophisticated as it should be, but I'll discuss with jlemon when
he's around.
2001-12-29 07:13:47 +00:00
Poul-Henning Kamp
c60693dbd3 Reserve 378 for the new mount syscall Maxime Henrion <mux@qualys.com>
is working on.  (This is to get us more than 32 mountoptions).
2001-11-02 17:58:26 +00:00
Robert Watson
b55abfd929 o Reserve system call 377 for afs_syscall; by reserving a system call
number, portable OpenAFS applications don't have to attempt to determine
  what system call number was dynamically allocated.  No system call
  prototype or implementation is defined.

Requested by:	Tom Maher <tardis@watson.org>
2001-10-13 13:19:34 +00:00
Robert Watson
9c94f7731e o Introduce eaccess(2), a version of access(2) that uses the effective
credentials rather than the real credentials.  This is useful for
  implementing GUI's which need to modify icons based on access rights,
  but where use of open(2) is too expensive, use of stat(2) doesn't
  reflect the file system's real protection model, and use of
  access() suffers from real/effective credential confusion.  This
  implementation provides the same semantics as the call of the same
  name on SCO OpenServer.  Note: using this call improperly can
  leave you subject to some of the same races present in the
  access(2) call.
o To implement this, break out the basic logic of access(2) into
  vpaccess(), which accepts a passed credential to perform the
  invocation of VOP_ACCESS().  Add eaccess(2) to invoke vpaccess(),
  and modify access(2) to use vpaccess().

Obtained from:	TrustedBSD Project
2001-09-21 21:33:22 +00:00
Peter Wemm
eb25edbda3 Cleanup and split of nfs client and server code.
This builds on the top of several repo-copies.
2001-09-18 23:32:09 +00:00
Matthew Dillon
257d198890 Synchronize syscalls.master(s) with recent Giant pushdown work 2001-09-01 19:36:48 +00:00
Matthew Dillon
918c3b1361 Make yield() MPSAFE.
Synchronize syscalls.master with all MPSAFE changes to date.  Synchronize
new syscall generation follows because yield() will panic if it is out
of sync with syscalls.master.
2001-09-01 03:54:09 +00:00
Matthew Dillon
df9987602f Giant pushdown syscalls in kern/uipc_syscalls.c. Affected calls:
recvmsg(), sendmsg(), recvfrom(), accept(), getpeername(), getsockname(),
socket(), connect(), accept(), send(), recv(), bind(), setsockopt(), listen(),
sendto(), shutdown(), socketpair(), sendfile()
2001-08-31 00:37:34 +00:00
Matthew Dillon
b6a4b4f9ae Giant Pushdown: sysv shm, sem, and msg calls. 2001-08-31 00:02:18 +00:00
Matthew Dillon
356861db03 Remove the MPSAFE keyword from the parser for syscalls.master.
Instead introduce the [M] prefix to existing keywords.  e.g.
MSTD is the MP SAFE version of STD.  This is prepatory for a
massive Giant lock pushdown.  The old MPSAFE keyword made
syscalls.master too messy.

Begin comments MP-Safe procedures with the comment:
/*
 * MPSAFE
 */
This comments means that the procedure may be called without
Giant held (The procedure itself may still need to obtain
Giant temporarily to do its thing).

sv_prepsyscall() is now MP SAFE and assumed to be MP SAFE
sv_transtrap() is now MP SAFE and assumed to be MP SAFE

ktrsyscall() and ktrsysret() are now MP SAFE (Giant Pushdown)
trapsignal() is now MP SAFE (Giant Pushdown)

Places which used to do the if (mtx_owned(&Giant)) mtx_unlock(&Giant)
test in syscall[2]() in */*/trap.c now do not.  Instead they
explicitly unlock Giant if they previously obtained it, and then
assert that it is no longer held to catch broken system calls.

Rebuild syscall tables.
2001-08-30 18:50:57 +00:00
Poul-Henning Kamp
b63436919d Remove a comment which was past its shelf life.
PR:		18750
Submitted by:	Tony Finch <dot@dotat.at>
2001-05-29 09:22:22 +00:00
Alfred Perlstein
2395531439 Introduce a global lock for the vm subsystem (vm_mtx).
vm_mtx does not recurse and is required for most low level
vm operations.

faults can not be taken without holding Giant.

Memory subsystems can now call the base page allocators safely.

Almost all atomic ops were removed as they are covered under the
vm mutex.

Alpha and ia64 now need to catch up to i386's trap handlers.

FFS and NFS have been tested, other filesystems will need minor
changes (grabbing the vm lock when twiddling page properties).

Reviewed (partially) by: jake, jhb
2001-05-19 01:28:09 +00:00
Tor Egge
b4b469e6bb gettimeofday() is MP safe on both -current and -stable. 2001-05-11 17:05:12 +00:00
Robert Watson
130d0157d1 o Introduce a new system call, __setsugid(), which allows a process to
toggle the P_SUGID bit explicitly, rather than relying on it being
  set implicitly by other protection and credential logic.  This feature
  is introduced to support inter-process authorization regression testing
  by simplifying userland credential management allowing the easy
  isolation and reproduction of authorization events with specific
  security contexts.  This feature is enabled only by "options REGRESSION"
  and is not intended to be used by applications.  While the feature is
  not known to introduce security vulnerabilities, it does allow
  processes to enter previously inaccessible parts of the credential
  state machine, and is therefore disabled by default.  It may not
  constitute a risk, and therefore in the future pending further analysis
  (and appropriate need) may become a published interface.

Obtained from:	TrustedBSD Project
2001-04-11 20:20:40 +00:00
Robert Watson
fec605c882 o Introduce extattr_{delete,get,set}_fd() to allow extended attribute
operations on file descriptors, which complement the existing set of
  calls, extattr_{delete,get,set}_file() which act on paths.  In doing
  so, restructure the system call implementation such that the two sets
  of functions share most of the relevant code, rather than duplicating
  it.  This pushes the vnode locking into the shared code, but keeps
  the copying in of some arguments in the system call code.  Allowing
  access via file descriptors reduces the opportunity for race
  conditions when managing extended attributes.

Obtained from:	TrustedBSD Project
2001-03-31 16:20:05 +00:00
Robert Watson
3063207147 o Rename "namespace" argument to "attrnamespace" as namespace is a C++
reserved word.

Submitted by:	jkh
Obtained from:	TrustedBSD Project
2001-03-19 05:44:15 +00:00
Robert Watson
70f3685105 o Change the API and ABI of the Extended Attribute kernel interfaces to
introduce a new argument, "namespace", rather than relying on a first-
  character namespace indicator.  This is in line with more recent
  thinking on EA interfaces on various mailing lists, including the
  posix1e, Linux acl-devel, and trustedbsd-discuss forums.  Two namespaces
  are defined by default, EXTATTR_NAMESPACE_SYSTEM and
  EXTATTR_NAMESPACE_USER, where the primary distinction lies in the
  access control model: user EAs are accessible based on the normal
  MAC and DAC file/directory protections, and system attributes are
  limited to kernel-originated or appropriately privileged userland
  requests.

o These API changes occur at several levels: the namespace argument is
  introduced in the extattr_{get,set}_file() system call interfaces,
  at the vnode operation level in the vop_{get,set}extattr() interfaces,
  and in the UFS extended attribute implementation.  Changes are also
  introduced in the VFS extattrctl() interface (system call, VFS,
  and UFS implementation), where the arguments are modified to include
  a namespace field, as well as modified to advoid direct access to
  userspace variables from below the VFS layer (in the style of recent
  changes to mount by adrian@FreeBSD.org).  This required some cleanup
  and bug fixing regarding VFS locks and the VFS interface, as a vnode
  pointer may now be optionally submitted to the VFS_EXTATTRCTL()
  call.  Updated documentation for the VFS interface will be committed
  shortly.

o In the near future, the auto-starting feature will be updated to
  search two sub-directories to the ".attribute" directory in appropriate
  file systems: "user" and "system" to locate attributes intended for
  those namespaces, as the single filename is no longer sufficient
  to indicate what namespace the attribute is intended for.  Until this
  is committed, all attributes auto-started by UFS will be placed in
  the EXTATTR_NAMESPACE_SYSTEM namespace.

o The default POSIX.1e attribute names for ACLs and Capabilities have
  been updated to no longer include the '$' in their filename.  As such,
  if you're using these features, you'll need to rename the attribute
  backing files to the same names without '$' symbols in front.

o Note that these changes will require changes in userland, which will
  be committed shortly.  These include modifications to the extended
  attribute utilities, as well as to libutil for new namespace
  string conversion routines.  Once the matching userland changes are
  committed, a buildworld is recommended to update all the necessary
  include files and verify that the kernel and userland environments
  are in sync.  Note: If you do not use extended attributes (most people
  won't), upgrading is not imperative although since the system call
  API has changed, the new userland extended attribute code will no longer
  compile with old include files.

o Couple of minor cleanups while I'm there: make more code compilation
  conditional on FFS_EXTATTR, which should recover a bit of space on
  kernels running without EA's, as well as update copyright dates.

Obtained from:	TrustedBSD Project
2001-03-15 02:54:29 +00:00
Jake Burkholder
86360fee54 Remove thr_sleep and thr_wakeup. Remove fields p_nthread and p_wakeup
from struct proc, which are now unused (p_nthread already was).
Remove process flag P_KTHREADP which was untested and only set
in vfs_aio.c (it should use kthread_create).  Move the yield
system call to kern_synch.c as kern_threads.c has been removed
completely.

moral support from:	alfred, jhb
2000-12-02 05:41:30 +00:00
Alfred Perlstein
78525ce318 sysvipc loadable.
new syscall entry lkmressys - "reserved loadable syscall"

Make syscall_register allow overwriting of such entries (lkmressys).
2000-12-01 08:57:47 +00:00
Marcel Moolenaar
ae51d56ce1 Fix prototypes for {o|}{g|s}etrlimit. A recent change in the
Linuxulator caused this bug to trigger.
2000-08-28 07:50:44 +00:00
Peter Wemm
4e0f152bbe Sigh. Fix SYS_exit problems. I misunderstood the significance of these
trailing options.
2000-07-29 10:05:25 +00:00
Peter Wemm
ac2b067b9a Change the 'exit()' system call to 'sys_exit()'. This avoids overlapping
gcc's internal exit() prototypes and the (futile) hackery that we did to
try and avoid warnings.  main() was renamed for similar reasons.
Remove an exit related hack from makesyscalls.sh.
2000-07-29 00:16:28 +00:00
Jonathan Lemon
a8e65b915e Simplify kqueue API slightly.
Discussed on:	-arch
2000-07-18 19:31:52 +00:00
Robert Watson
92eebb8a9b o Introduce syscall prototypes, stubs for __cap_{get,set}_{fd,file},
syscalls to manage capability sets on files.  First of two commits.

Obtained from:	TrustedBSD Project
2000-07-13 20:31:24 +00:00
Robert Watson
b09b66abf6 Introduce syscalls for process capability manipulation. Currently backs
onto already committed stubs.  Commit one of two.

Reviewed by:	Damned if I can remember.  Many people.
Obtained from:	TrustedBSD Project
2000-06-15 23:08:17 +00:00
Bruce Evans
aa4b7eae22 Fixed the declaration of mmap(). The crufty padding arg had the wrong
type.  This gave an inconsistent amount of crufty padding on i386's with
64-bit longs (8 bytes instead of 4).  On alphas it gives a consistent
amount of crufty padding (8 bytes) in addition to the 4 bytes of normal
padding caused by passing int args as register_t's.

Fixed the args struct tag for the NOPROTO syscalls (netbsd_lchown() and
netbsd_msync()).  The tag is currently unused for NOPROTO syscalls, so
the bug has no effect, but it will be used even in the NOPROTO case to
calculate sy_nargs correctly.
2000-05-09 08:31:06 +00:00
Peter Wemm
39e4c0c888 Remove undocumented broken-as-designed semconfig() syscall. 2000-05-01 11:11:44 +00:00
Jonathan Lemon
cb679c385e Introduce kqueue() and kevent(), a kernel event notification facility. 2000-04-16 18:53:38 +00:00
Alfred Perlstein
c01df63183 Make makesyscalls.sh parse an optional field 'MPSAFE' that specifies
that a syscall does not want the BGL to be grabbed automatically.

Add the new MPSAFE flag to the syscalls that dillon has determined to
be MPSAFE.
2000-04-03 06:36:14 +00:00
Robert Watson
5134b3e92a Fix bde'isms in acl/extattr syscall interface, renaming syscalls to
prettier (?) names, adding some const's around here, et al.

Commit 1 out of 3.

Reviewed by:	bde
2000-01-19 06:01:07 +00:00
Peter Wemm
8ccd633455 Implement setres[ug]id() and getres[ug]id(). This has been sitting in
my tree for ages (~2 years) waiting for an excuse to commit it.  Now Linux
has implemented it and it seems that Staroffice (when using the
linux_base6.1 port's libc) calls this in the linux emulator and dies in
setup.  The Linux emulator can call these now.
2000-01-16 16:34:26 +00:00
Jason Evans
bfbbc4aa44 Add aio_waitcomplete(). Make aio work correctly for socket descriptors.
Make gratuitous style(9) fixes (me, not the submitter) to make the aio
code more readable.

PR:		kern/12053
Submitted by:	Chris Sedore <cmsedore@maxwell.syr.edu>
2000-01-14 02:53:29 +00:00
Alfred Perlstein
20883b0f10 make getfh a standard syscall instead of dependant on having
NFSSERVER defined, useful for userland fileservers that want to
use a filehandle type interface to the filesystem.

Submitted by: Assar Westerlund assar@stacken.kth.se
PR: kern/15452
1999-12-21 20:21:12 +00:00
Robert Watson
ef351daa32 First pass commit to introduce new ACL and Extended Attribute system calls.
The second pass commit with all the supporting code will happen shortly
afterwards.

Reviewed by:	eivind
1999-12-19 05:54:46 +00:00
Brian Somers
b08210f5fa modfind(char *) -> modfind(const char *)
Reminded by:	dfr
1999-11-17 21:32:40 +00:00
Marcel Moolenaar
b7d8512385 Now that userland including modules don't use the osig* syscalls,
make them of type COMPAT.
1999-10-12 09:29:53 +00:00
Marcel Moolenaar
da3605dbea sigset_t change (part 1 of 5)
-----------------------------

Rename sigaction, sigprocmask, sigpending and sigsuspend to
osigaction, osigprocmask, osigpending and osigsuspend (resp)
and add new syscalls for them to support the new sisgset_t
without breaking existing binaries.

Change the prototype of sigaltstack to use the typedef stack_t
instead of struct sigaltstack to reflect that it is SUSv2
compliant.

Also, rename sigreturn to osigreturn and add a new syscall
to support the modified stackframe. The change is caused by
sigreturn operating on ucontext_t now and the fact that
siginfo_t has been updated to conform to SUSv2.
1999-09-29 15:01:21 +00:00
Alfred Perlstein
c24fda81c9 Seperate the export check in VFS_FHTOVP, exports are now checked via
VFS_CHECKEXP.

Add fh(open|stat|stafs) syscalls to allow userland to query filesystems
based on (network) filehandle.

Obtained from:	NetBSD
1999-09-11 00:46:08 +00:00
Peter Wemm
c3aac50f28 $Id$ -> $FreeBSD$ 1999-08-28 01:08:13 +00:00
Nik Clayton
2395507999 Add CPT_NOA, LIBCOMPAT, NODEF, NOARGS, NOPROTO, and NOIMPL to the commented
list of available types.

PR:             docs/13007
Submitted by:   Assar Westerlund <assar@sics.se>
1999-08-11 22:13:46 +00:00
Jordan K. Hubbard
45f26d4120 Move syscall 180 back to where it was before and fix the
incorrect comment which led me to move it in the first place.
1999-08-05 08:18:45 +00:00
Jordan K. Hubbard
b24eb2795d Reserve a syscall for the arla folks. I'm assuming that since syscalls.c
and init_sysent.c are checked into CVS, I should also commit the regenerated
copies even though they're built by syscalls.master.  Correct?  Bruce? :)
1999-08-04 20:04:25 +00:00
Bruce Evans
f664346fbe Fixed nonsense arg type `const caddr_t' in the prototype() for utrace().
Changed to `const void *'.  utrace() is undocumented, so nothing should
notice.

Fixed missing consts for utrace() and ktrace() in syscalls.master.

sys/ktrace.h is missing some Lite2 changes of shorts to ints.
1999-05-13 09:09:37 +00:00
Poul-Henning Kamp
02daf150a4 Add the jail system call. 1999-04-28 11:28:49 +00:00
Dmitrij Tejblum
8fe387ab84 Add standard padding argument to pread and pwrite syscall. That should make them
NetBSD compatible.

Add parameter to fo_read and fo_write. (The only flag FOF_OFFSET mean that
the offset is set in the struct uio).

Factor out some common code from read/pread/write/pwrite syscalls.
1999-04-04 21:41:28 +00:00
Alan Cox
4160ccd978 Added pread and pwrite. These functions are defined by the X/Open
Threads Extension.  (Note: We use the same syscall numbers as NetBSD.)

Submitted by:	John Plevyak <jplevyak@inktomi.com>
1999-03-27 21:16:58 +00:00
Peter Wemm
325e13dd19 A kldsym(2) syscall prototype for extracting information from the in-kernel
linker.  This is intended to replace kvm_mkdb etc.  The first version
only does name->value lookups, but it's open ended.  value->name lookups
would probably be a good thing to do too.

It's been suggested to try and connect the symbol tables to sysctl (which
is probably a more flexible way of doing it if it's done right), but that
is far more complex and difficult than I was ready to have a shot at.
1998-11-11 12:45:14 +00:00
David Greenman
dd0b2081f4 Implemented zero-copy TCP/IP extensions via sendfile(2) - send a
file to a stream socket. sendfile(2) is similar to implementations in
HP-UX, Linux, and other systems, but the API is more extensive and
addresses many of the complaints that the Apache Group and others have
had with those other implementations. Thanks to Marc Slemko of the
Apache Group for helping me work out the best API for this.
Anyway, this has the "net" result of speeding up sends of files over
TCP/IP sockets by about 10X (that is to say, uses 1/10th of the CPU
cycles) when compared to a traditional read/write loop.
1998-11-05 14:28:26 +00:00
Doug Rabson
2e83b28161 Fix a few syscall arguments to use size_t instead of u_int. 1998-08-24 08:29:52 +00:00
Doug Rabson
ecbb00a262 This commit fixes various 64bit portability problems required for
FreeBSD/alpha.  The most significant item is to change the command
argument to ioctl functions from int to u_long.  This change brings us
inline with various other BSD versions.  Driver writers may like to
use (__FreeBSD_version == 300003) to detect this change.

The prototype FreeBSD/alpha machdep will follow in a couple of days
time.
1998-06-07 17:13:14 +00:00
Peter Wemm
786cf38a29 deep-six signanosleep(). It sounded like a good idea at the time. 1998-05-14 11:28:11 +00:00
John Dyson
1f56217280 Fix the futimes/undelete/utrace conflict with other BSD's. Note that
the only common  usage of utrace (the possible problem with this
commit) is with malloc, so this should be a real problem.  Add
the various NetBSD syscalls that allow full emulation of their
development environment.
1998-05-11 03:55:28 +00:00
Peter Dufault
8a6472b723 Finish _POSIX_PRIORITY_SCHEDULING. Needs P1003_1B and
_KPOSIX_PRIORITY_SCHEDULING options to work.  Changes:

Change all "posix4" to "p1003_1b".  Misnamed files are left
as "posix4" until I'm told if I can simply delete them and add
new ones;

Add _POSIX_PRIORITY_SCHEDULING system calls for FreeBSD and Linux;

Add man pages for _POSIX_PRIORITY_SCHEDULING system calls;

Add options to LINT;

Minor fixes to P1003_1B code during testing.
1998-03-28 11:51:01 +00:00
Bruce Evans
14f1d4260d Fixed type of mincore(). 1998-02-03 17:45:43 +00:00
Poul-Henning Kamp
c5b193bfba Retire LFS.
If you want to play with it, you can find the final version of the
code in the repository the tag LFS_RETIREMENT.

If somebody makes LFS work again, adding it back is certainly
desireable, but as it is now nobody seems to care much about it,
and it has suffered considerable bitrot since its somewhat haphazard
integration.

R.I.P
1998-01-30 11:34:06 +00:00
Eivind Eklund
7b778b5e61 Make all file-system (MFS, FFS, NFS, LFS, DEVFS) related option new-style.
This introduce an xxxFS_BOOT for each of the rootable filesystems.
(Presently not required, but encouraged to allow a smooth move of option *FS
to opt_dontuse.h later.)

LFS is temporarily disabled, and will be re-enabled tomorrow.
1998-01-24 02:54:56 +00:00
Alexander Langer
de17eb59b4 Added missing caddr_t --> void * conversions for sys/mman.h functions.
Submitted by:	bde
1998-01-01 17:07:46 +00:00
Poul-Henning Kamp
e6e21bc0a4 Add "NOIMPL" for syscalls we know what is, but don't implement as "STD".
Use this for getfh & nfssvc.
1997-10-26 20:27:51 +00:00
Poul-Henning Kamp
7822f1c624 Add a __getcwd() syscall. This is intentionally undocumented, but all
it does is to try to figure the pwd out from the vfs namecache, and
return a reversed string to it.  libc:getcwd() is responsible for
flipping it back.
1997-09-14 16:51:31 +00:00
Peter Wemm
8cb0553a7c Activate poll(2) syscall 1997-09-14 02:22:05 +00:00
Peter Wemm
6871cc6262 SVR4/XPG-style getpgid()/getsid() syscalls. 1997-08-19 05:53:48 +00:00
John Dyson
2c1011f7ef Modifications to existing files to support the initial AIO/LIO and
kernel based threading support.
1997-06-16 00:29:36 +00:00
Peter Wemm
99f06d5c02 New syscall, signanosleep(), which is a hybrid of sigsuspend(2) and
nanosleep(2).  It sleeps until either the time expires, or a signal
permitted by the supplied mask arrives (eg: SIGALRM if appropriate)
1997-06-01 08:52:38 +00:00
Peter Wemm
851679e514 oops. NODIDE -> NOHIDE 1997-05-08 14:07:11 +00:00
Peter Wemm
b6f031b70b Define entries for the posix-style clock/timer syscalls including
nanosleep().  Also, note some syscall conflicts with other systems and
indicate slots tagged for use with other syscalls some day.
1997-05-08 14:04:37 +00:00
Doug Rabson
cea6c86c11 This is the kernel linker. To use it, you will first need to apply
the patches in freefall:/home/dfr/ld.diffs to your ld sources and set
BINFORMAT to aoutkld when linking the kernel.

Library changes and userland utilities will appear in a later commit.
1997-05-07 16:05:47 +00:00
Peter Wemm
56f12a6cb5 issetugid is now implemented rather than reserved 1997-03-31 14:52:50 +00:00
Peter Wemm
4eb542c64b Reserve 252 (poll, first in OpenBSD)
Reserve 253 (issetugid, as in OpenBSD)
Allocate 254 for lchown(2)
1997-03-31 12:14:48 +00:00
Peter Wemm
6875d25465 Back out part 1 of the MCFH that changed $Id$ to $FreeBSD$. We are not
ready for it yet.
1997-02-22 09:48:43 +00:00
John Dyson
996c772f58 This is the kernel Lite/2 commit. There are some requisite userland
changes, so don't expect to be able to run the kernel as-is (very well)
without the appropriate Lite/2 userland changes.

The system boots and can mount UFS filesystems.

Untested: ext2fs, msdosfs, NFS
Known problems: Incorrect Berkeley ID strings in some files.
		Mount_std mounts will not work until the getfsent
		library routine is changed.

Reviewed by:	various people
Submitted by:	Jeffery Hsu <hsu@freebsd.org>
1997-02-10 02:22:35 +00:00
Bruce Evans
ac0ad63f37 Reduced #include spam in <sys/sysproto.h> and fixed things that depended
on it.

makesyscalls.sh:
This parsed $Id$.  Fixed(?) to parse $FreeBSD$.  The output is wrong when
the id is not expanded in the source file.

syscalls.master:
Fixed declaration of sigsuspend().  There are still some bogons and
spam involving sigset_t.
Use `struct foo *' instead of the equivalent `foo_t *' for some nfs and
lfs syscalls so that <sys/sysproto.h> doesn't depend on <sys/mount.h>.
1997-01-16 15:58:32 +00:00
Jordan K. Hubbard
1130b656e5 Make the long-awaited change from $Id$ to $FreeBSD$
This will make a number of things easier in the future, as well as (finally!)
avoiding the Id-smashing problem which has plagued developers for so long.

Boy, I'm glad we're not using sup anymore.  This update would have been
insane otherwise.
1997-01-14 07:20:47 +00:00
Poul-Henning Kamp
e6c4b9ba32 Add the utrace(caddr_t addr,size_t len) syscall, that will store the
data pointed at in a ktrace file, if this process is being ktrace'ed.
I'm using this to profile malloc usage.
The advantage is that there is no context around this call, ie, no
open file or socket, so it will work in any process, and you can
decide if you want it to collect data or not.
1996-09-19 19:49:13 +00:00
Sujal Patel
b08f7993c3 Remove the kernel FD_SETSIZE limit for select().
Make select()'s first argument 'int' not 'u_int'.

Reviewed by:	bde
1996-08-20 07:18:10 +00:00
Peter Wemm
3f7efdf30d Change the 'int len' args in the mmap/msync/mincore/etc class syscalls
to 'size_t' as per bde's request.
1996-03-02 16:51:25 +00:00
Peter Wemm
96ac07ef3a Add hooks for rfork/minherit pair, and reset args of vfork in preperation
for adding the syscalls.
1996-02-23 18:20:44 +00:00
Peter Wemm
4f9a71f6a0 Note the syscall numbers used in BSD/OS 2.x. We dont want to
accidently use one of these ourselves as it'd make it harder to run
their binaries.
Also, remove the now-defunct #include "opt_sysvipc.h".
1996-02-23 18:03:08 +00:00
Poul-Henning Kamp
99cb299316 Add an option NFS_NOSERVER which saves 100K in the install kernel (or
any other kernel that uses it).  Use with option NFS.
1996-01-13 23:27:58 +00:00
Peter Wemm
e7ae3bf08d Remove the #ifdef SYSVSHM etc. Always call the functions, some stubs
are about to go in.  This is to fix the problem with the ibcs2 and linux
lkm's not being able to call the sysv ipc functions unless the build is
modified.
1996-01-08 04:13:25 +00:00
Garrett Wollman
50c73f3620 Convert SYSV IPC to new-style options. (I hope I got everything...)
The LKMs will need an extra file, to come later.
1996-01-04 20:29:06 +00:00
Garrett Wollman
db6a20e23e Converted two options over to the new scheme: USER_LDT and KTRACE. 1996-01-03 21:42:35 +00:00
Peter Wemm
bf4f39849b Add the direct sysv shm/sem/msg system calls, in the same way as NetBSD.
This costs very little, we gain prototypes for the calls from the linux
emulator, and this is one less thing in the way of NetBSD binary support.
1995-12-15 04:36:01 +00:00
Bruce Evans
93915a2ac4 Fixed the args list for mount(). We're not ready for the BSD4.4lite2/
NetBSD interface.

Increased the bogusness of the args list for mmap().  The args lists for
most of the memory mapping functions are bogus.  The args lists in
syscalls.master are a little better than the ones in the args structs
currently being used, but the improvement for mmap() changed the object
code and I don't want to worry about that now.

Increased the bogusness of the args list for fcntl.  BSD4.4lite2/NetBSD
uses `void *' instead of int for the third arg.  This has the advantage
of working when `void *'s are longer than ints, but requires extra bogus
casts that I hope to avoid.

Fixed the args list for uname.  `struct outsname' seems to be a typo,
not an old interface.

Added comments about bogus args lists for open, mount, msync, munmap,
mprotect, madvise, mincore, fcntl, semsys, msgsys and shmsys.
1995-11-12 04:24:53 +00:00
Steven Wallace
a932a33de3 Fix misc formatting errors in makesyscalls.sh.
Add CPT_NOA type which is COMPAT with NOARGS -- do not produce argument
struct in sysproto.

Change accept, recvfrom, getsockname to CPT_NOA type.
Fix getrlimit, setrlimit argument #2 name to struct rlimit.
1995-10-07 23:56:20 +00:00
Steven Wallace
f171307e84 Add new functionality to makesyscalls.sh:
o  optional config-file to set vars: sysnames, sysproto, sysproto_h,
	syshdr, syssw, syshide, syscallprefix, switchname, namesname, sysvec.
  o  change syntax of syscalls.master entry:
	remove argument count.
	add pseudo-prototype field defining function name and arguments.
  o  generates correct structure definitions for all system calls
	in sys/sysproto.h
  o  add type NOARGS:  same as STD except do not create structure in
	sys/sysproto.h
  o  add type NOPROTO:  same as STD except do not create structure or function
	prototype in sys/sysproto.h

New functionality provides complete prototype definitions.
Usefull for generating files for emulated systems like my new ibcs2 code.

Update syscalls.master to reflect new changes.  For example, read()
entry now looks like:

3	STD	POSIX	{ int ibcs2_read(int fd, char *buf, u_int nbytes); }

This is similar to how NetBSD generates these files.
1995-10-07 06:24:08 +00:00
Bruce Evans
3cb43dbdaf Generate prototypes for syscall-implementing functions. Put them in
<sys/sysproto.h> and use them (so far only) in kern/init_sysent.c.

Don't put $Id in generated files.

kern/syscalls.master:
I had to add some new fields to describe some non-orthogonal names.
E.g., the args struct for the syscall-implementing function foo()
is usually named `foo_args', but for getpid() it is named `args'.

sys/sysent.h:
sy_call_t is still incomplete to hide a couple of warnings.
1995-09-19 13:31:04 +00:00
Andrey A. Chernov
e876c909da Make setreuid/setregid active syscalls 1995-04-23 12:22:06 +00:00
David Greenman
bc4c84cf7e Added a third "flags" argument to msync() ...as other systems have. 1995-03-25 16:52:24 +00:00
David Greenman
403ef252fa Removed obsolete vtrace() remnants. 1995-03-04 03:24:45 +00:00
Garrett Wollman
23f6ed01aa Actually enable NTP kernel PLL. (Oops!)
Noticed by Pete Carah.
1994-12-14 17:57:47 +00:00
David Greenman
7216391e49 "idle priority" support. Based on code from Henrik Vestergaard Draboel,
but substantially rewritten by me.
1994-10-02 04:48:21 +00:00
Garrett Wollman
5ea9b26376 LKM support is no longer optional. 1994-09-28 22:45:04 +00:00
Garrett Wollman
3f31c649d1 Redo Kernel NTP PLL support, kernel side.
This code is mostly taken from the 1.1 port (which was in turn taken from
Dave Mills's kern.tar.Z example).  A few significant differences:

1) ntp_gettime() is now a MIB variable rather than a system call.  A few
fiddles are done in libc to make it behave the same.

2) mono_time does not participate in the PLL adjustments.

3) A new interface has been defined (in <machine/clock.h>) for doing
possibly machine-dependent things around the time of the clock update.
This is used in Pentium kernels to disable interrupts, set `time', and
reset the CPU cycle counter as quickly as possible to avoid jitter in
microtime().  Measurements show an apparent resolution of a bit more than
8.14usec, which is reasonable given system-call overhead.
1994-09-18 20:40:01 +00:00
Doug Rabson
3d903220e4 Added SYSV ipcs.
Obtained from: NetBSD and FreeBSD-1.1.5
1994-09-13 14:47:38 +00:00
Garrett Wollman
0960a7f002 Added namespace information for future pollution-control measures. 1994-09-13 00:48:26 +00:00
David Greenman
e8fb0b2c17 Realtime priority scheduling support.
Submitted by:	Henrik Vestergaard Draboel
1994-09-01 05:12:53 +00:00
Garrett Wollman
24ea21ced4 Added ntp_gettime and ntp_adjtime syscalls, both nosys'ed out until
someone gets to re-integrating the code.  ntp_gettime() should be
turned into a sysctl variable and emulated in the library.
1994-08-26 18:15:25 +00:00
David Greenman
3edb235c09 Terry Lambert's loadable kernel module support w/improvements from the
NetBSD group.
1994-08-19 11:45:29 +00:00
David Greenman
3c4dd3568f Added $Id$ 1994-08-02 07:55:43 +00:00
Rodney W. Grimes
26f9a76710 The big 4.4BSD Lite to FreeBSD 2.0.0 (Development) patch.
Reviewed by:	Rodney W. Grimes
Submitted by:	John Dyson and David Greenman
1994-05-25 09:21:21 +00:00
Rodney W. Grimes
df8bae1de4 BSD 4.4 Lite Kernel Sources 1994-05-24 10:09:53 +00:00