Commit Graph

230 Commits

Author SHA1 Message Date
Randall Stewart
f8829a4a40 Ok, here it is, we finally add SCTP to current. Note that this
work is not just mine, but it is also the works of Peter Lei
and Michael Tuexen. They both are my two key other developers
working on the project.. and they need ata-boy's too:
****
peterlei@cisco.com
tuexen@fh-muenster.de
****
I did do a make sysent which updated the
syscall's and sysproto.. I hope that is correct... without
it you don't build since we have new syscalls for SCTP :-0

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

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

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

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

Reviewed by:	gnn
Approved by:	gnn
2006-11-03 15:23:16 +00:00
David Xu
5f641fc0fb o Add keyword volatile for user mutex owner field.
o Fix type consistent problem by using type long for old
  umtx and wait channel.
o Rename casuptr to casuword.
2006-10-17 02:24:47 +00:00
Robert Watson
888db9e177 Audit creat() system call (compat code), and change type for getpagesize(),
which isn't actually being audited anyway.

MFC after:	3 days
Obtained from:	TrustedBSD Project
2006-10-03 20:46:52 +00:00
David Xu
73fa3e5b88 Replace system call thr_getscheduler, thr_setscheduler, thr_setschedparam
with rtprio_thread, while rtprio system call is for process only, the new
system call rtprio_thread is responsible for LWP.
2006-09-21 04:18:46 +00:00
Robert Watson
6c2d307a0e AUE_SIGALTSTACK instead of AUE_SIGPENDING for sigaltstack().
Obtained from:	TrustedBSD Project
MFC after:	3 days
2006-09-17 13:28:11 +00:00
Robert Watson
7f26ddda62 Assign proper audit event identifiers to a number of system calls not
covered in previous passes:

- sysarch, rtprio
- clock_settime
- preadv/pwritev
- __getcwd
- kqueue
- fhstatfs
- kldunloadf

Obtained from:	TrustedBSD Project
2006-09-03 15:10:40 +00:00
Robert Watson
d1967c5d2c Use AUE_NTP_ADJTIME for ntp_adjtime() instead of AUE_ADJTIME.
Obtained from:	TrustedBSD Project
2006-09-03 13:44:21 +00:00
David Xu
d10183d94d This is initial version of POSIX priority mutex support, a new userland
mutex structure is added as following:
struct umutex {
        __lwpid_t       m_owner;
        uint32_t        m_flags;
        uint32_t        m_ceilings[2];
        uint32_t        m_spare[4];
};
The m_owner represents owner thread, it is a thread id, in non-contested
case, userland can simply use atomic_cmpset_int to lock the mutex, if the
mutex is contested, high order bit will be set, and userland should do locking
and unlocking via kernel syscall. Flag UMUTEX_PRIO_INHERIT represents
pthread's PTHREAD_PRIO_INHERIT mutex, which when contention happens, kernel
should do priority propagating. Flag UMUTEX_PRIO_PROTECT indicates it is
pthread's PTHREAD_PRIO_PROTECT mutex, userland should initialize m_owner
to contested state UMUTEX_CONTESTED, then atomic_cmpset_int will be failure
and kernel syscall should be invoked to do locking, this becauses
for such a mutex, kernel should always boost the thread's priority before
it can lock the mutex, m_ceilings is used by PTHREAD_PRIO_PROTECT mutex,
the first element is used to boost thread's priority when it locked the mutex,
second element is used when the mutex is unlocked, the PTHREAD_PRIO_PROTECT
mutex's link list is kept in userland, the m_ceiling[1] is managed by thread
library so kernel needn't allocate memory to keep the link list, when such
a mutex is unlocked, kernel reset m_owner to UMUTEX_CONTESTED.
Flag USYNC_PROCESS_SHARED indicate if the synchronization object is process
shared, if the flag is not set, it saves a vm_map_lookup() call.

The umtx chain is still used as a sleep queue, when a thread is blocked on
PTHREAD_PRIO_INHERIT mutex, a umtx_pi is allocated to support priority
propagating, it is dynamically allocated and reference count is used,
it is not optimized but works well in my tests, while the umtx chain has
its own locking protocol, the priority propagating protocol are all protected
by sched_lock because priority propagating function is called with sched_lock
held from scheduler.

No visible performance degradation is found which these changes. Some parameter
names in _umtx_op syscall are renamed.
2006-08-28 04:24:51 +00:00
Peter Wemm
bad9a7a5f9 Grab two syscall numbers. One is used to emulate functionality that linux
has in its procfs (do a readlink of /proc/self/fd/<nn> to find the pathname
that corresponds to a given file descriptor).  Valgrind-3.x needs this
functionality.  This is a placeholder only at this time.
2006-08-16 22:32:50 +00:00
John Baldwin
589201fd4e - Use NOSTD rather than NOIMPL for nfssvc() to match other syscalls
provided via klds.
- Correct audit identifier for nfssvc().
2006-08-15 16:45:41 +00:00
John Baldwin
af5bf12239 Now that all system calls are MPSAFE, retire the SYF_MPSAFE flag used to
mark system calls as being MPSAFE:
- Stop conditionally acquiring Giant around system call invocations.
- Remove all of the 'M' prefixes from the master system call files.
- Remove support for the 'M' prefix from the script that generates the
  syscall-related files from the master system call files.
- Don't explicitly set SYF_MPSAFE when registering nfssvc.
2006-07-28 19:05:28 +00:00
John Baldwin
e0b4add8d8 Various fixes to comments in the syscall master files including removing
cruft from the audit import and adding mention of COMPAT4 to freebsd32.
2006-07-28 18:55:18 +00:00
David Xu
60088160c9 Add syscalls thr_setscheduler, thr_getscheduler, and thr_setschedparam,
these syscalls are designed to set thread's scheduling parameters and
policy, because each syscall contains a size parameter, it is possible
to support future scheduling option, e.g SCHED_SPORADIC, this option
needs other fields in structure sched_param, current they are not
avaiblable.
2006-07-13 06:26:43 +00:00
John Baldwin
be5747d5b5 - Add conditional VFS Giant locking to getdents_common() (linux ABIs),
ibcs2_getdents(), ibcs2_read(), ogetdirentries(), svr4_sys_getdents(),
  and svr4_sys_getdents64() similar to that in getdirentries().
- Mark ibcs2_getdents(), ibcs2_read(), linux_getdents(), linux_getdents64(),
  linux_readdir(), ogetdirentries(), svr4_sys_getdents(), and
  svr4_sys_getdents64() MPSAFE.
2006-07-11 20:52:08 +00:00
Wayne Salamon
bbe5d0318d Add audit events for the extended attribute system calls.
Obtained from: TrustedBSD Project
Approved by: rwatson (mentor)
2006-07-05 15:46:02 +00:00
John Baldwin
597d608f86 - Expand the scope of Giant some in mount(2) to protect the vfsp structure
from going away.  mount(2) is now MPSAFE.
- Expand the scope of Giant some in unmount(2) to protect the mp structure
  (or rather, to handle concurrent unmount races) from going away.
  umount(2) is now MPSAFE, as well as linux_umount() and linux_oldumount().
- nmount(2) and linux_mount() were already MPSAFE.
2006-06-27 14:46:31 +00:00
Dag-Erling Smørgrav
867c089bc7 Revert previous commit at davidxu's insistance. Instead, use __DECONST
(argh!) and rearrange the prototypes to make it clear that _umtx_op()
is not deprecated.
2006-03-28 14:32:38 +00:00
Dag-Erling Smørgrav
b3efbabe87 The undocumented and deprecated system call _umtx_op() takes two pointer
arguments.  The first one is never used (all callers pass in 0); the
second is sometimes used to pass in a struct timespec * which is used as
a timeout and never modified.  Constify that argument so callers can pass
a const struct timespec * without jumping through hoops.
2006-03-28 09:18:34 +00:00
David Xu
99eee864ad Implement aio_fsync() syscall. 2006-03-23 08:46:42 +00:00
David Xu
61d3a4efc2 Let kernel POSIX timer code and mqueue code to use integer as a resource
handle, the timer_t and mqd_t types will be a pointer which userland
will define it.
2006-03-01 06:29:34 +00:00
Robert Watson
c983324ef5 Prefer AUE_FOO audit identifiers to AUE_O_FOO, which are largely left
over from the Darwin implementation.

When we implement a system call as a wrapper to sysctl(), audit it as
AUE_SYSCTL.  This leads to greater compatibility with Solaris audit
trails as sysctl() argument tokens are not the same as the ones for
the originaly system calls (i.e., setdomainname()).

Replace references to AUE_ events that are equivilent to AUE_NULL with
AUE_NULL.  In the case of process signal configuration, this is
because these events do not require auditing.

Move from the Darwin spelling of getsockopt() to the FreeBSD/Solaris
one.

Audit nmount().

Obtained from:	TrustedBSD Project
2006-02-06 02:00:06 +00:00
David Xu
9e7d72246f Implement thr_set_name to set a name for thread.
Reviewed by: julian
2006-02-05 02:18:46 +00:00
Robert Watson
62646c07f6 Assign audit event identifiers to many system calls.
Much work by:	wsalamon
Obtained from:	TrustedBSD Project
2006-02-03 11:48:37 +00:00
Robert Watson
35d29f5091 Map audit-related system calls to audit event identifiers.
Much work by:	wsalamon
Obtained from:	TrustedBSD Project
2006-02-02 01:44:30 +00:00
David Xu
1ce9182407 Make aio code MP safe. 2006-01-22 05:59:27 +00:00
Poul-Henning Kamp
5a56b437ec Add abort2() systemcall. 2005-12-23 11:54:11 +00:00
David Xu
94e1294b06 Don't use OpenBSD syscall numbers, instead, use new syscall numbers
for POSIX message queue.

Suggested by: rwatson
2005-11-27 01:13:00 +00:00
David Xu
655291f2ae Bring in experimental kernel support for POSIX message queue. 2005-11-26 12:42:35 +00:00
David Xu
0972628aff Fix sigevent's POSIX incompatible problem by adding member fields
sigev_notify_function and sigev_notify_attributes. AIO syscalls
use sigevent, so they have to be adjusted.

Reviewed by:	alc
2005-10-30 02:12:49 +00:00
David Xu
86857b368d Implement POSIX timers. Current only CLOCK_REALTIME and CLOCK_MONOTONIC
clock are supported. I have plan to merge XSI timer ITIMER_REAL and other
two CPU timers into the new code, current three slots are available for
the XSI timers.
The SIGEV_THREAD notification type is not supported yet because our
sigevent struct lacks of two member fields:
sigev_notify_function
sigev_notify_attributes
I have found the sigevent is used in AIO, so I won't add the two members
unless the AIO code is adjusted.
2005-10-23 04:22:56 +00:00
Stefan Farfeleder
d60e86c86e Const-qualify ksem_timedwait's parameter abstime as it's only passed in. 2005-10-18 11:46:24 +00:00
David Xu
9104847f21 1. Change prototype of trapsignal and sendsig to use ksiginfo_t *, most
changes in MD code are trivial, before this change, trapsignal and
   sendsig use discrete parameters, now they uses member fields of
   ksiginfo_t structure. For sendsig, this change allows us to pass
   POSIX realtime signal value to user code.

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

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

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

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

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

Earlier patch reviewed by: jhb, deischen
Tested on: i386, amd64
2005-10-14 12:43:47 +00:00
Christian S.J. Peron
7f300b47dd Mark the extended attribute syscalls as being MP safe.
Requested by:	jhb
2005-09-27 14:32:04 +00:00
John Baldwin
4acd2e73e5 Mark second instance of lchown() MP safe just like the first.
Approved by:	re (scottl)
2005-07-08 15:01:13 +00:00
John Baldwin
bcd9e0dd20 - Add two new system calls: preadv() and pwritev() which are like readv()
and writev() except that they take an additional offset argument and do
  not change the current file position.  In SAT speak:
  preadv:readv::pread:read and pwritev:writev::pwrite:write.
- Try to reduce code duplication some by merging most of the old
  kern_foov() and dofilefoo() functions into new dofilefoo() functions
  that are called by kern_foov() and kern_pfoov().  The non-v functions
  now all generate a simple uio on the stack from the passed in arguments
  and then call kern_foov().  For example, read() now just builds a uio and
  calls kern_readv() and pwrite() just builds a uio and calls kern_pwritev().

PR:		kern/80362
Submitted by:	Marc Olzheim marcolz at stack dot nl (1)
Approved by:	re (scottl)
MFC after:	1 week
2005-07-07 18:17:55 +00:00
Robert Watson
f3596e3370 Introduce a new field in the syscalls.master file format to hold the
audit event identifier associated with each system call, which will
be stored by makesyscalls.sh in the sy_auevent field of struct sysent.
For now, default the audit identifier on all system calls to AUE_NULL,
but in the near future, other BSM event identifiers will be used.  The
mapping of system calls to event identifiers is many:one due to
multiple system calls that map to the same end functionality across
compatibility wrappers, ABI wrappers, etc.

Submitted by:	wsalamon
Obtained from:	TrustedBSD Project
2005-05-30 15:09:18 +00:00
Robert Watson
45cb0a0074 Normalize white space in syscalls.master: try to use tabs before system
call types.
2005-05-29 20:20:16 +00:00
Robert Watson
d85bfefd79 Mark ntp_gettime() as MSTD, since its system call path will acquire
Giant if required.
2005-05-28 14:35:05 +00:00
Robert Watson
d7b9187bff Mark the following compatability system calls as MCOMPAT or MCOMPAT4 based
on the their simply wrapping MPSAFE implementations of existing MPSAFE
system calls:

  getfsstat()
  lseek()
  stat()
  lstat()
  truncate()
  ftruncate()
  statfs()
  fstatfs()

Note that ogetdirentries() is not marked MPSAFE because it does not share
the MPSAFE implementation used for getdirentries(), and requires separate
locking to be implemented.
2005-05-28 13:23:42 +00:00
Robert Watson
160349adb1 Mark quotactl() as MSTD. 2005-05-28 13:12:04 +00:00
Robert Watson
ec792a6740 Mark kenv(2) as MPSAFE, since it appears to be properly locked down. 2005-05-28 13:09:41 +00:00
Robert Watson
5267dc0b3a Also mark the COMPAT4 version of fhstatfs() as MPSAFE. 2005-05-28 13:07:43 +00:00
Robert Watson
2191a5d154 Mark fhopen(), fhstat(), and fhstatfs() as MSTD, since they now
acquire Giant themselves.
2005-05-28 12:59:33 +00:00
David Xu
c4bd610f58 Add new syscall thr_new to create thread in atomic, it will
inherit signal mask from parent thread, setup TLS and stack, and
user entry address.
Also support POSIX thread's PTHREAD_SCOPE_PROCESS and PTHREAD_SCOPE_SYSTEM,
sysctl is also provided to control the scheduler scope.
2005-04-23 02:36:07 +00:00
Stefan Farfeleder
b26244446b Fix typo in comment. 2005-03-09 11:50:55 +00:00
Paul Saab
96d31285fe Change the prototype of kevent to remove the const from the changelist.
Reviewed by:	jhb
2005-03-01 17:43:08 +00:00
Jeff Roberson
810ad5ec4c - Struct mount is not yet locked well enough to allow
mount/nmount/unmount to run without Giant.  Mark them as STD here.
2005-01-26 02:28:43 +00:00
Jeff Roberson
29ed48fc6a - Change all VFS syscalls to MSTD as they all manually deal with giant
or the appropriate filesystem locks.

Sponsored By:	Isilon Systems, Inc.
2005-01-24 10:49:26 +00:00
Marcel Moolenaar
fe0ef598b6 uuidgen(2) is MP safe. 2005-01-03 00:45:57 +00:00
David Xu
c180db2bce Make _umtx_op() as more general interface, the final parameter needn't be
timespec pointer, every parameter will be interpreted by its opcode.
2004-12-25 13:02:50 +00:00