sysproto.h: sys/acl.h -> sys/types.h

In sysproto.h, stop including sys/acl.h as syscall defintions now use
__acl* types from sys/_types.h. Add sys/types.h to provide types
previously provided by sys/param.h (via sys/acl.h).

Reviewed by: kib
Differential Revision: https://reviews.freebsd.org/D44467

sysent: regen

regen

Remove never implemented sbrk and sstk syscalls

Both system calls were stubs returning EOPNOTSUPP and libc did not
provide _ or __sys_ prefixed symbols. The actual implementation of
sbrk(2) is on top of the undocumented break(2) system call.

Technically this is a change in ABI, but no non-contrived program ever
called these syscalls.

Reviewed by: kib, emaste
Sponsored by: DARPA
Differential Revision: https://reviews.freebsd.org/D42872

sysproto.h: regen after c1c8afd04e34d

timerfd: Move implementation from linux compat to sys/kern

Move the timerfd impelemntation from linux compat code to sys/kern. Use
it to implement the new system calls for timerfd. Add a hook to kern_tc
to allow timerfd to know when the system time has stepped. Add kqueue
support to timerfd. Adjust a few names to be less Linux centric.

RelNotes: YES
Reviewed by: markj (on irc), imp, kib (with reservations), jhb (slack)
Differential Revision: https://reviews.freebsd.org/D38459

Regen

Regenerate sysent stuff after $FreeBSD$ removal

Sponsored by: Netflix

Regen

Regen

sysent: regen for syscallarg_t

Revert "syscallarg_t: Add a type for system call arguments"

Missed issues in truss on at least armv7 and powerpcspe need to be
resolved before recommit.

This reverts commit 3889fb8af0b611e3126dc250ebffb01805152104.
This reverts commit 1544e0f5d1f1e3b8c10a64cb899a936976ca7ea4.

sysent: regen for syscallarg_t

Regen

syscalls: regen

syscalls: regen

syscalls: regen

syscalls: regen

syscalls: regen

syscalls: regen

syscalls: regen

syscalls: regen

syscalls: use struct siginfo rather than siginfo_t

This allows freebsd32 to use struct siginfo32 with an automatable
conversion.

Reviewed by: kevans

syscalls: fix type of osendmsg

osendmsg takes an struct omsghdr * not a void *.

Reviewed by: kevans

syscalls: use __socklen_t as appropriate

No functional change as __socklen_t is an int.

Obtained from: CheriBSD

Reviewed by: kevans

syscalls: [gs]etitimer takes an int which

Match the function decleration which takes an int not a signed int.
No functional change as the range of valid values is 0-2.

Obtained from: CheriBSD

Reviewed by: kevans

syscalls: sprinkle in const values

Add missing const qualifiers to a number of syscall arguments.

Obtained from: CheriBSD

Reviewed by: kevans

syscalls: regen

Regen

Regen after 0dc332bff200

Regen

regen after tweaks to getgroups and setgroups

Sponsored by: Netflix

Regenerate syscall files after reallocation of aio_writev/aio_readv

Regenerate syscall files after addition of aio_writev/aio_readv

Regen.

Regen after r366145.

Sponsored by: DARPA

sys: clean up empty lines in .c and .h files

Oops, missed syscall.h and sysproto.h for r361602.

Pointy hat goes on me.

sysent: re-roll after 360236 (AUE_CLOSERANGE used)

sysent: re-roll after r359930

sysent: re-roll after introduction of close_range in r359836

make sysent for r358172 ("vfs: add realpathat syscall")

Regen.

sysent: regenerate after r354835

The lua-based makesyscalls produces slightly different output than its
makesyscalls.sh predecessor, all whitespace differences more closely
matching the source syscalls.master.

Jail and capability mode for shm_rename; add audit support for shm_rename

Co-mingling two things here:

* Addressing some feedback from Konstantin and Kyle re: jail,
capability mode, and a few other things
* Adding audit support as promised.

The audit support change includes a partial refresh of OpenBSM from
upstream, where the change to add shm_rename has already been
accepted. Matthew doesn't plan to work on refreshing anything else to
support audit for those new event types.

Submitted by: Matthew Bryan <matthew.bryan@isilon.com>
Reviewed by: kib
Relnotes: Yes
Sponsored by: Dell EMC Isilon
Differential Revision: https://reviews.freebsd.org/D22083

sysent: regenerate after r352747.

Sponsored by: Dell EMC Isilon

sysent: regenerate after r352705

This also implements it, fixes kdump, and removes no longer needed bits from
lib/libc/sys/shm_open.c for the interim.

sysent: regenerate after r352700

sysent: regenerate after r352693

Add sysctlbyname system call

Previously userspace would issue one syscall to resolve the sysctl and then
another one to actually use it. Do it all in one trip.

Fallback is provided in case newer libc happens to be running on an older
kernel.

Submitted by: Pawel Biernacki
Reported by: kib, brooks
Differential Revision: https://reviews.freebsd.org/D17282

Update the generated syscall files for copy_file_range(2) added by
r350315.

make sysent after r347228

Regenerate to add @generated tag in generated files.

Regen after r345982.

Regen after r342190.

Differential Revision: https://reviews.freebsd.org/D18444

Regen.

Regen after r341495: Remove NOARGS from oaccept.

Regen after r341474: Normalize COMPAT_43 syscall declarations.

Regen after r340302: Fix freebsd32 mknod(at).

Sponsored by: DARPA, AFRL
Differential Revision: https://reviews.freebsd.org/D17928

Regen after r340199: Use declared types for caddr_t arguments.

Sponsored by: DARPA, AFRL
Differential Revision: https://reviews.freebsd.org/D17852

Regen after r340080: Add const to input-only char * arguments.

Sponsored by: DARPA, AFRL
Differential Revision: https://reviews.freebsd.org/D17812

Regent after r340034: Use mode_t when the documented signature does.

Sponsored by: DARPA, AFRL
Differential Revision: https://reviews.freebsd.org/D17784

Regen after r339622.

Note: changes to freebsd32 syscalls.master impacted no generated files.

Revert r337922, except for some documention-only bits. This needs to wait
until user is changed to stop using jail(2).

Differential Revision: D14791

Put jail(2) under COMPAT_FREEBSD11. It has been the "old" way of creating
jails since FreeBSD 7.

Along with the system call, put the various security.jail.allow_foo and
security.jail.foo_allowed sysctls partly under COMPAT_FREEBSD11 (or
BURN_BRIDGES). These sysctls had two disparate uses: on the system side,
they were global permissions for jails created via jail(2) which lacked
fine-grained permission controls; inside a jail, they're read-only
descriptions of what the current jail is allowed to do. The first use
is obsolete along with jail(2), but keep them for the second-read-only use.

Differential Revision: D14791

Regen after 335177 (rename sys_obreak to sys_break).

Regen after r334223: make vadvise compat freebsd11.

Regenerate sysent files after r331279.

Regenerate auto-generated files

Regen.

Regen.

Regen after r316594.

Hook up new audit event identifiers for various non-Orange Book/CAPP
system calls supported by OpenBSM 1.2-alpha5.

Obtained from: TrustedBSD Project
MFC after: 3 weeks
Sponsored by: DARPA, AFRL

Regenerate syscall files for r315526

Sponsored by: Dell EMC

Regenerate all the system call tables to drop "created from" lines.

One of the ibcs2 files contains some actual changes (new headers) as
it hasn't been regenerated after older changes to makesyscalls.sh.

Regen after r310638.

Differential Revision: https://reviews.freebsd.org/D8854

Regnerate system-call definitions following r309677 correcting a whitespace
glitch in syscalls.master.

Remove the obsolete and unused openbsd_poll system call. (Phase 2)

Reported by: brooks
Reviewed by: brooks, jhb
Differential Revision: https://reviews.freebsd.org/D7548

Regen after r304176, fdatasync(2) addition.

Regenerate after r303755.

MFC after: 3 days
X-MFC-With: r303755
Sponsored by: EMC / Isilon Storage Division

Regenerate system call tables for r303699 and r303700.

Regenerate system call table for r303435.

Do allow auditing of read(2) and write(2) system calls, by assigning
those system calls audit event identifiers AUE_READ and AUE_WRITE.
While auditing file-descriptor I/O is not required by the Common
Criteria, in practice this proves useful for both live and forensic
analysis.

NB: freebsd32 already assigns AUE_READ and AUE_WRITE to read(2) and
write(2).

MFC after: 3 days
Sponsored by: DARPA, AFRL

Generate syscall tables and update pipe() implementation after r302094.

Mark the pipe() system call as COMPAT10.

As of r302092 libc uses pipe2() with a zero flags value instead of pipe().

Approved by: re (gjb)
Sponsored by: DARPA, AFRL
Differential Revision: https://reviews.freebsd.org/D6816

Regen.

Regen.

Missing regen after last change to sys/kern/syscalls.master.

Regenerate syscalls.

Regen.

Run make sysent.

Regen for r276654 (__getcwd()).

Regen for r274462.

Regenerate after r272823:
Move the SCTP syscalls to netinet with the rest of the SCTP code.

Submitted by: Steve Kiernan <stevek@juniper.net>
Reviewed by: tuexen, rrs
Obtained from: Juniper Networks, Inc.

Regen per r263318.

Sponsored by: EMC / Isilon storage division

Regen.

Approved by: re (delphij)

Regen.

Approved by: re (kib)

Regenerate after r255219.

Sponsored by: The FreeBSD Foundation

aio_mlock() added:
- Regen for r251526.
- Bump __FreeBSD_version.

Regenerate.

Regenerate files for pipe2().

Regenerate files for accept4().

Regen.

MFC after: 1 week

Regenerate after r248599.

Sponsored by: The FreeBSD Foundation

Regenerate after r248597.

Sponsored by: The FreeBSD Foundation

Regen after r247667.

Regen after r247602.

Regen

regen.

Implement syscall clock_getcpuclockid2, so we can get a clock id
for process, thread or others we want to support.
Use the syscall to implement POSIX API clock_getcpuclock and
pthread_getcpuclockid.

PR: 168417

Regenerate system call tables.

- 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)

Regenerate system call tables.

Regen.

Auto-generated code from sys_ prefixing makesyscalls.sh change

Approved by: re(bz)

Auto-generated system call code based on r224987.

Approved by: re (implicit)

Regenerate system call files following r224812 changes to capabilities.conf.
A no-op for non-Capsicum kernels; for Capsicum kernels, completes the
enabling of fooat(2) system calls using capabilities. With this change,
and subject to bug fixes, Capsicum capability support is now complete for
9.0.

Approved by: re (kib)
Submitted by: jonathan
Sponsored by: Google Inc

Auto-generated system call code with cap_new(), cap_getrights().

Approved by: mentor (rwatson), re (Capsicum blanket)
Sponsored by: Google Inc

Regen.

Regenerate.

Regenerate.

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

A new jail(8) with a configuration file, to replace the work currently done
by /etc/rc.d/jail.

Regen

Regenerate

Regen

Revert 200606.

Fix compiling FREEBSD_COMPAT[4,5,6] without FREEBSD_COMPAT7.

Note: Not sure this is the right way to do compat, but it makes the
headers consistent with the implementations.

Regenerate sysent files after r200491.

Regenerate

Regenerate system call files following r197636.

If a certain feature that was present in FreeBSD 7 was removed or changed in
FreeBSD 8, the compatibility shims should be built not just when FreeBSD 7
compatibility is requested, but also when compatibility with any older
FreeBSD version where that feature was present is requested.o

Without this patch, a kernel config that sets COMPAT_FREEBSD6 but not *7
would fail to build due to inconsistencies between the declaration of the
compatibility shims and their use in the SysV code.

There are similar errors in other *proto.h headers in the tree.

MFC after: 3 weeks

Regenerate after lpathconf(2) addition.

Approved by: re (kib)

Regen.

Regen.

Regen.

Regen.

Regen for new jail system calls in r191673.

Approved by: bz (mentor)

Regenerate system call tables for r184789.

Regen.

- Import the HEAD csup code which is the basis for the cvsmode work.

Regen.

Regenerate following r182123.

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

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

Add code to allow the system to handle multiple routing tables.
This particular implementation is designed to be fully backwards compatible
and to be MFC-able to 7.x (and 6.x)

Currently the only protocol that can make use of the multiple tables is IPv4
Similar functionality exists in OpenBSD and Linux.

From my notes:

-----

One thing where FreeBSD has been falling behind, and which by chance I
have some time to work on is "policy based routing", which allows
different
packet streams to be routed by more than just the destination address.

Constraints:
------------

I want to make some form of this available in the 6.x tree
(and by extension 7.x) , but FreeBSD in general needs it so I might as
well do it in -current and back port the portions I need.

One of the ways that this can be done is to have the ability to
instantiate multiple kernel routing tables (which I will now
refer to as "Forwarding Information Bases" or "FIBs" for political
correctness reasons). Which FIB a particular packet uses to make
the next hop decision can be decided by a number of mechanisms.
The policies these mechanisms implement are the "Policies" referred
to in "Policy based routing".

One of the constraints I have if I try to back port this work to
6.x is that it must be implemented as a EXTENSION to the existing
ABIs in 6.x so that third party applications do not need to be
recompiled in timespan of the branch.

This first version will not have some of the bells and whistles that
will come with later versions. It will, for example, be limited to 16
tables in the first commit.
Implementation method, Compatible version. (part 1)
-------------------------------
For this reason I have implemented a "sufficient subset" of a
multiple routing table solution in Perforce, and back-ported it
to 6.x. (also in Perforce though not always caught up with what I
have done in -current/P4). The subset allows a number of FIBs
to be defined at compile time (8 is sufficient for my purposes in 6.x)
and implements the changes needed to allow IPV4 to use them. I have not
done the changes for ipv6 simply because I do not need it, and I do not
have enough knowledge of ipv6 (e.g. neighbor discovery) needed to do it.

Other protocol families are left untouched and should there be
users with proprietary protocol families, they should continue to work
and be oblivious to the existence of the extra FIBs.

To understand how this is done, one must know that the current FIB
code starts everything off with a single dimensional array of
pointers to FIB head structures (One per protocol family), each of
which in turn points to the trie of routes available to that family.

The basic change in the ABI compatible version of the change is to
extent that array to be a 2 dimensional array, so that
instead of protocol family X looking at rt_tables[X] for the
table it needs, it looks at rt_tables[Y][X] when for all
protocol families except ipv4 Y is always 0.
Code that is unaware of the change always just sees the first row
of the table, which of course looks just like the one dimensional
array that existed before.

The entry points rtrequest(), rtalloc(), rtalloc1(), rtalloc_ign()
are all maintained, but refer only to the first row of the array,
so that existing callers in proprietary protocols can continue to
do the "right thing".
Some new entry points are added, for the exclusive use of ipv4 code
called in_rtrequest(), in_rtalloc(), in_rtalloc1() and in_rtalloc_ign(),
which have an extra argument which refers the code to the correct row.

In addition, there are some new entry points (currently called
rtalloc_fib() and friends) that check the Address family being
looked up and call either rtalloc() (and friends) if the protocol
is not IPv4 forcing the action to row 0 or to the appropriate row
if it IS IPv4 (and that info is available). These are for calling
from code that is not specific to any particular protocol. The way
these are implemented would change in the non ABI preserving code
to be added later.

One feature of the first version of the code is that for ipv4,
the interface routes show up automatically on all the FIBs, so
that no matter what FIB you select you always have the basic
direct attached hosts available to you. (rtinit() does this
automatically).

You CAN delete an interface route from one FIB should you want
to but by default it's there. ARP information is also available
in each FIB. It's assumed that the same machine would have the
same MAC address, regardless of which FIB you are using to get
to it.

This brings us as to how the correct FIB is selected for an outgoing
IPV4 packet.

Firstly, all packets have a FIB associated with them. if nothing
has been done to change it, it will be FIB 0. The FIB is changed
in the following ways.

Packets fall into one of a number of classes.

1/ locally generated packets, coming from a socket/PCB.
Such packets select a FIB from a number associated with the
socket/PCB. This in turn is inherited from the process,
but can be changed by a socket option. The process in turn
inherits it on fork. I have written a utility call setfib
that acts a bit like nice..

setfib -3 ping target.example.com # will use fib 3 for ping.

It is an obvious extension to make it a property of a jail
but I have not done so. It can be achieved by combining the setfib and
jail commands.

2/ packets received on an interface for forwarding.
By default these packets would use table 0,
(or possibly a number settable in a sysctl(not yet)).
but prior to routing the firewall can inspect them (see below).
(possibly in the future you may be able to associate a FIB
with packets received on an interface.. An ifconfig arg, but not yet.)

3/ packets inspected by a packet classifier, which can arbitrarily
associate a fib with it on a packet by packet basis.
A fib assigned to a packet by a packet classifier
(such as ipfw) would over-ride a fib associated by
a more default source. (such as cases 1 or 2).

4/ a tcp listen socket associated with a fib will generate
accept sockets that are associated with that same fib.

5/ Packets generated in response to some other packet (e.g. reset
or icmp packets). These should use the FIB associated with the
packet being reponded to.

6/ Packets generated during encapsulation.
gif, tun and other tunnel interfaces will encapsulate using the FIB
that was in effect withthe proces that set up the tunnel.
thus setfib 1 ifconfig gif0 [tunnel instructions]
will set the fib for the tunnel to use to be fib 1.

Routing messages would be associated with their
process, and thus select one FIB or another.
messages from the kernel would be associated with the fib they
refer to and would only be received by a routing socket associated
with that fib. (not yet implemented)

In addition Netstat has been edited to be able to cope with the
fact that the array is now 2 dimensional. (It looks in system
memory using libkvm (!)). Old versions of netstat see only the first FIB.

In addition two sysctls are added to give:
a) the number of FIBs compiled in (active)
b) the default FIB of the calling process.

Early testing experience:
-------------------------

Basically our (IronPort's) appliance does this functionality already
using ipfw fwd but that method has some drawbacks.

For example,
It can't fully simulate a routing table because it can't influence the
socket's choice of local address when a connect() is done.

Testing during the generating of these changes has been
remarkably smooth so far. Multiple tables have co-existed
with no notable side effects, and packets have been routes
accordingly.

ipfw has grown 2 new keywords:

setfib N ip from anay to any
count ip from any to any fib N

In pf there seems to be a requirement to be able to give symbolic names to the
fibs but I do not have that capacity. I am not sure if it is required.

SCTP has interestingly enough built in support for this, called VRFs
in Cisco parlance. it will be interesting to see how that handles it
when it suddenly actually does something.

Where to next:
--------------------

After committing the ABI compatible version and MFCing it, I'd
like to proceed in a forward direction in -current. this will
result in some roto-tilling in the routing code.

Firstly: the current code's idea of having a separate tree per
protocol family, all of the same format, and pointed to by the
1 dimensional array is a bit silly. Especially when one considers that
there is code that makes assumptions about every protocol having the
same internal structures there. Some protocols don't WANT that
sort of structure. (for example the whole idea of a netmask is foreign
to appletalk). This needs to be made opaque to the external code.

My suggested first change is to add routing method pointers to the
'domain' structure, along with information pointing the data.
instead of having an array of pointers to uniform structures,
there would be an array pointing to the 'domain' structures
for each protocol address domain (protocol family),
and the methods this reached would be called. The methods would have
an argument that gives FIB number, but the protocol would be free
to ignore it.

When the ABI can be changed it raises the possibilty of the
addition of a fib entry into the "struct route". Currently,
the structure contains the sockaddr of the desination, and the resulting
fib entry. To make this work fully, one could add a fib number
so that given an address and a fib, one can find the third element, the
fib entry.

Interaction with the ARP layer/ LL layer would need to be
revisited as well. Qing Li has been working on this already.

This work was sponsored by Ironport Systems/Cisco

Reviewed by: several including rwatson, bz and mlair (parts each)
Obtained from: Ironport systems/Cisco

Regen

Regen.

Regen after changing prototypes of cpuset_{get,set}affinity().

Remove kernel support for M:N threading.

While the KSE project was quite successful in bringing threading to
FreeBSD, the M:N approach taken by the kse library was never developed
to its full potential. Backwards compatibility will be provided via
libmap.conf for dynamically linked binaries and static binaries will
be broken.

- Regen for cpuset

Sponsored by: Nokia

Regenerate for readlink(2).

Regenerate.

Regen for shm_open(2) and shm_unlink(2).

Regenerate.

Approved by: re(kensmith)

Regenerate after mmap/lseek/etc syscall changes.

Approved by: re (kensmith)

Regen (cosmetics in sys/sysproto.h).

Merge posix4/* into normal kernel hierarchy.

Reviewed by: glanced at by jhb
Approved by: silence on -arch@ and -standards@

This commits the remake in kern/ make sysent to get
the correct syscalls.master's $FreeBSD$ tag record and
a make sysent in sys/compat/freebsd32. Thanks Ruslan
for pointing out the steps I missed :-0
Approved by: gnn

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

Regenerate.

Regenerate.

Regenerate.

Regenerate.

Regenerate for updated audit event identifiers.

Regenerate.

Regenerate.

Regen to propogate <prefix>_AUE_<mumble> changes as well as the earlier
systrace changes.

don't include sys/thr.h and sys/umtx.h, it is unnecessary.

Regen for MPSAFE flag removal.

regenerate.

Regen.

Regen the system calls files, picking up the extended attr events, and some
mount-related changes done previously.

Approved by: rwatson (mentor)

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.

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.

Regenerate.

Regenerate.

Regenerate.

Regenerate.

Regenerate.

Regenerate.

Regen.

Regenerate sysent with new abort2 system call.

Implement abort2(const char *reason, int narg, void **args);

Submitted by: "Wojciech A. Koszek" <dunstan@freebsd.czest.pl>

Regen.

Regen.

Regen.

Regen for POSIX timer syscalls.

Regenerate.

Regen for sigqueue syscall.

Update the "created from" section to reflect the most recent version of
syscalls.master

Requested by: jhb

Regen.

Approved by: re (scottl)

Regenerate.

Approved by: re (scottl)

Rebuild generated system call definition files following the addition of
the audit event field to the syscalls.master file format.

Submitted by: wsalamon
Obtained from: TrustedBSD Project

Regenerate from syscalls.master.

Regenerate for updated syscalls.master.

Regenerate from syscalls.master.

Regenerate from updated syscalls.master.

Regenerate system call tables from syscalls.master.

Regen.

regen

- Regen for recent vfs syscall changes.

Sponsored By: Isilon Systems, Inc.

Regen.

Make _umtx_op() as more general interface, the final parameter needn't be
timespec pointer, every parameter will be interpreted by its opcode.

1. make umtx sharable between processes, the way is two or more processes
call mmap() to create a shared space, and then initialize umtx on it,
after that, each thread in different processes can use the umtx same
as threads in same process.
2. introduce a new syscall _umtx_op to support timed lock and condition
variable semantics. also, orignal umtx_lock and umtx_unlock inline
functions now are reimplemented by using _umtx_op, the _umtx_op can
use arbitrary id not just a thread id.

Rebuild from syscalls.master:1.179

Reviewed by: imp, phk, njl, peter
Approved by: njl

Rebuild from syscalls.master:1.178.

Regen to unbreak world.

Pointy hat to: mtm

Give kldunload a -f(orce) argument.

Add a MOD_QUIESCE event for modules. This should return error (EBUSY)
of the module is in use.

MOD_UNLOAD should now only fail if it is impossible (as opposed to
inconvenient) to unload the module. Valid reasons are memory references
into the module which cannot be tracked down and eliminated.

When kldunloading, we abandon if MOD_UNLOAD fails, and if -force is
not given, MOD_QUIESCE failing will also prevent the unload.

For backwards compatibility, we treat EOPNOTSUPP from MOD_QUIESCE as
success.

Document that modules should return EOPNOTSUPP for unknown events.

Change kse_switchin to accept kse_thr_mailbox pointer, the syscall
will be used heavily in debugging KSE threads. This breaks libpthread
on IA64, but because libpthread was not in 5.2.1 release, I would like
to change it so we needn't to introduce another syscall.

Regen.

Regenerate after updating syscalls.master.

Rebuild following marking link() as MPSAFE.

Regen.

Regen for libthr thread synchronization syscalls.

Nudge Giant as far as I can into kern_open(). Mark open() as MPSAFE.
Use kern_open() to implement creat() rather than taking the long route
through open(). Mark creat as MPSAFE.

While I'm at it, mark nosys() (syscall 0) as MPSAFE, for all the
difference it will make.

Regen for ptrace being safe again.

Regen for mpsafe kse_create()

Regen after adding ksem_timedwait().

regen (__restrict)

regen (after removal of restrict)

regen

Regen - this should be essentially a NOP, except for rcsid changes.

Regen

Regen due to kse_switchin(2).

- regen.

Update the five files derived from /sys/kern/syscalls.master
after the additions made for the new statfs structure (version
1.157). These must be updated in a separate checkin after
syscalls.master has been checked in so that they reflect its
new CVS identity. As these are purely derived files, it is not
clear to me why they are under CVS at all. I presume that it has
something to do with having `make world' operate properly.

Regen.

Don peril-sensitive sunglasses and mark pipe(2) as MPSAFE. I've beaten up
on it for the last 15 hours with no signs of problems. It gives a small
(1%) gain on buildworld since pipe_read/pipe_write are already free of Giant.

Mark dup as MPSAFE. Giant was pushed into dup ages ago, but it looks
like it was missed in syscalls.master.

Spotted by: alc

msync(2) should be declared MP-safe.

o Refine kse_thr_interrupt to allow it to handle different commands.
o Remove TDF_NOSIGPOST.
o Add a member td_waitset to proc structure, it will be used for sigwait.

Tested by: deischen

o Change kse_thr_interrupt to allow send a signal to a specified thread,
or unblock a thread in kernel, and allow UTS to specify whether syscall
should be restarted.
o Add ability for UTS to monitor signal comes in and removed from process,
the flag PS_SIGEVENT is used to indicate the events.
o Add a KMF_WAITSIGEVENT for KSE mailbox flag, UTS call kse_release with
this flag set to wait for above signal event.
o For SA based thread, kernel masks all signal in its signal mask, let
UTS to use kse_thr_interrupt interrupt a thread, and install a signal
frame in userland for the thread.
o Add a tm_syncsig in thread mailbox, when a hardware trap occurs,
it is used to deliver synchronous signal to userland, and upcall
is schedule, so UTS can process the synchronous signal for the thread.

Reviewed by: julian (mentor)

Regen from syscalls.master:1.149, addition of extended attribute
list system calls for fd, file, link.

Regen.

- Regen.

- Regen for umtx.

- Regen for thr related system calls.

- Regen for the sig*wait* system calls.

Add a timeout parameter to kse_release.

regen

regen

regen.

Some KSE syscalls are MPSAFE.

Regen from syscalls.master:1.139

Regenerate system calls (swapoff added)

Regenerate after adding system calls.

Regen.

Regen from yesterday's system call placeholder rename.

Split 4.x and 5.x signal handling so that we can keep 4.x signal
handling clean and functional as 5.x evolves. This allows some of the
nasty bandaids in the 5.x codepaths to be unwound.

Encapsulate 4.x signal handling under COMPAT_FREEBSD4 (there is an
anti-foot-shooting measure in place, 5.x folks need this for a while) and
finish encapsulating the older stuff under COMPAT_43. Since the ancient
stuff is required on alpha (longjmp(3) passes a 'struct osigcontext *'
to the current sigreturn(2), instead of the 'ucontext_t *' that sigreturn
is supposed to take), add a compile time check to prevent foot shooting
there too. Add uniform COMPAT_43 stubs for ia64/sparc64/powerpc.

Tested on: i386, alpha, ia64. Compiled on sparc64 (a few days ago).
Approved by: re

Regen.

Regen from addition of execve_mac placeholder.

Regen from syntax fix to syscalls.master.

Regen.

Let kse_wakeup() take a KSE mailbox pointer argument.

Reviewed by: julian

Regen.

Make the following name changes to KSE related functions, etc., to better
represent their purpose and minimize namespace conflicts:

kse_fn_t -> kse_func_t
struct thread_mailbox -> struct kse_thr_mailbox
thread_interrupt() -> kse_thr_interrupt()
kse_yield() -> kse_release()
kse_new() -> kse_create()

Add missing declaration of kse_thr_interrupt() to <sys/kse.h>.
Regenerate the various generated syscall files. Minor style fixes.

Reviewed by: julian

Regen for added syscalls.

Regen.

Regen.

Regen.

Regen.

Rebuild of files generated from syscalls.master.

Obtained from: TrustedBSD Project
Sponsored by: DARPA, NAI Labs

regen for freebsd4_sendfile(2) compat.

Regen.

Add uuidgen(2) and uuidgen(1).

The uuidgen command, by means of the uuidgen syscall, generates one
or more Universally Unique Identifiers compatible with OSF/DCE 1.1
version 1 UUIDs.

From the Perforce logs (change 11995):

Round of cleanups:
o Give uuidgen() the correct prototype in syscalls.master
o Define struct uuid according to DCE 1.1 in sys/uuid.h
o Use struct uuid instead of uuid_t. The latter is defined
in sys/uuid.h but should not be used in kernel land.
o Add snprintf_uuid(), printf_uuid() and sbuf_printf_uuid()
to kern_uuid.c for use in the kernel (currently geom_gpt.c).
o Rename the non-standard struct uuid in kern/kern_uuid.c
to struct uuid_private and give it a slightly better definition
for better byte-order handling. See below.
o In sys/gpt.h, fix the broken uuid definitions to match the now
compliant struct uuid definition. See below.
o In usr.bin/uuidgen/uuidgen.c catch up with struct uuid change.

A note about byte-order:
The standard failed to provide a non-conflicting and
unambiguous definition for the binary representation. My initial
implementation always wrote the timestamp as a 64-bit little-endian
(2s-complement) integral. The clock sequence was always written
as a 16-bit big-endian (2s-complement) integral. After a good
nights sleep and couple of Pan Galactic Gargle Blasters (not
necessarily in that order :-) I reread the spec and came to the
conclusion that the time fields are always written in the native
by order, provided the the low, mid and hi chopping still occurs.
The spec mentions that you "might need to swap bytes if you talk
to a machine that has a different byte-order". The clock sequence
is always written in big-endian order (as is the IEEE 802 address)
because its division is resulting in bytes, making the ordering
unambiguous.

Add the lchflags(2) syscall.

Reviewed by: rwatson

Rework the kernel environment subsystem. We now convert the static
environment needed at boot time to a dynamic subsystem when VM is
up. The dynamic kernel environment is protected by an sx lock.

This adds some new functions to manipulate the kernel environment :
freeenv(), setenv(), unsetenv() and testenv(). freeenv() has to be
called after every getenv() when you have finished using the string.
testenv() only tests if an environment variable is present, and
doesn't require a freeenv() call. setenv() and unsetenv() are self
explanatory.

The kenv(2) syscall exports these new functionalities to userland,
mainly for kenv(1).

Reviewed by: peter

Regen

Regen

Remove __P

Part II: update various mechanically generated files to allow for new
system call number allocations.

Obtained from: TrustedBSD Project
Sponsored by: DARPA, NAI Labs

Add stub syscalls and definitions for KSE calls.
"Book'em Danno"

Regenerate these files after change to syscalls.master.

Part II: Update system calls for extended attributes. Rebuild of
generated files.

Regenerate to make osigreturn standard.

Regenerate _after_ the commit to syscalls.master.

Add nmount() stub function and regenerate the syscall-glue which should
not need to check in generated files.

o Update init_sysent.c and friends for allocation of afs_syscall.

o Part two of eaccess(2) commit, rebuilt system call code.

Obtained from: TrustedBSD Project

Regenerate

KSE Milestone 2
Note ALL MODULES MUST BE RECOMPILED
make the kernel aware that there are smaller units of scheduling than the
process. (but only allow one thread per process at this time).
This is functionally equivalent to teh previousl -current except
that there is a thread associated with each process.

Sorry john! (your next MFC will be a doosie!)

Reviewed by: peter@freebsd.org, dillon@freebsd.org

X-MFC after: ha ha ha ha

Regenerate syscalls

regenerate syscalls

Regenerate from syscalls.master using the new makesyscalls.sh revision.

Regen syscalls that were made mpsafe via vm_mtx

obreak, getpagesize, sbrk, sstk, mmap, ovadvise, munmap, mprotect,
madvise, mincore, mmap, mlock, munlock, minherit, msync, mlockall,
munlockall

o Regenerated following introduction of __setugid() system call for
"options REGRESSION".

Obtained from: TrustedBSD Project

o Part two of introduction of extattr_{delete,get,set}_fd() system calls,
regenerate necessary automatically-generated code.

Obtained from: TrustedBSD Project

o Rename "namespace" argument to "attrnamespace" as namespace is a C++
reserved word. Part 2 of syscalls.master commit to catch rebuilt
files.

Submitted by: jkh
Obtained from: TrustedBSD Project

Regenerate after rwatson's commit to syscalls.master (rev 1.85)

Regen.

sysvipc loadable.

new syscall entry lkmressys - "reserved loadable syscall"

Make syscall_register allow overwriting of such entries (lkmressys).

Regen: fix prototypes for {o|}{g|s}etrlimit.

Regen. (Fix SYS_exit)

Regenerate with makesyscalls.sh

Simplify kqueue API slightly.

Discussed on: -arch

o Commit two of two, introducing __cap_{get,set}_{fd,file} syscalls to
modify capability sets on files.

Obtained from: TrustedBSD Project

Second of two commits adding capability manipulation syscalls for
processes.

Obtained from: TrustedBSD Project

Regenerated (fixed the type of mmap()'s padding arg).

Regenerate (removed semconfig)

Introduce kqueue() and kevent(), a kernel event notification facility.

Fix bde'isms in acl/extattr syscall interface, renaming syscalls to
prettier (?) names, adding some const's around here, et al.

Commit 2 out of 3.

Reviewed by: bde

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.

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>

Second pass commit to introduce new ACL and Extended Attribute system
calls, vnops, vfsops, both in /kern, and to individual file systems that
require a vfsop_ array entry.

Reviewed by: eivind

Cop on a bit and regenerate things correctly.

Pointed out by: bde

modfind(char *) -> modfind(const char *)

Reminded by: dfr

Now that userland, including modules don't use the osig* syscalls
and the kernel itself doesn't use any SYS_osig* constants, change
the syscalls to be of type COMPAT.

sigset_t change (part 2 of 5)
-----------------------------

The core of the signalling code has been rewritten to operate
on the new sigset_t. No methodological changes have been made.
Most references to a sigset_t object are through macros (see
signalvar.h) to create a level of abstraction and to provide
a basis for further improvements.

The NSIG constant has not been changed to reflect the maximum
number of signals possible. The reason is that it breaks
programs (especially shells) which assume that all signals
have a non-null name in sys_signame. See src/bin/sh/trap.c
for an example. Instead _SIG_MAXSIG has been introduced to
hold the maximum signal possible with the new sigset_t.

struct sigprop has been moved from signalvar.h to kern_sig.c
because a) it is only used there, and b) access must be done
though function sigprop(). The latter because the table doesn't
holds properties for all signals, but only for the first NSIG
signals.

signal.h has been reorganized to make reading easier and to
add the new and/or modified structures. The "old" structures
are moved to signalvar.h to prevent namespace polution.

Especially the coda filesystem suffers from the change, because
it contained lines like (p->p_sigmask == SIGIO), which is easy
to do for integral types, but not for compound types.

NOTE: kdump (and port linux_kdump) must be recompiled.

Thanks to Garrett Wollman and Daniel Eischen for pressing the
importance of changing sigreturn as well.

regenerate to include proper "gererated from" taglines.

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

Regen after Id->FreeBSD

commit these files after updating syscalls.master.

Regenerated.

This Implements the mumbled about "Jail" feature.

This is a seriously beefed up chroot kind of thing. The process
is jailed along the same lines as a chroot does it, but with
additional tough restrictions imposed on what the superuser can do.

For all I know, it is safe to hand over the root bit inside a
prison to the customer living in that prison, this is what
it was developed for in fact: "real virtual servers".

Each prison has an ip number associated with it, which all IP
communications will be coerced to use and each prison has its own
hostname.

Needless to say, you need more RAM this way, but the advantage is
that each customer can run their own particular version of apache
and not stomp on the toes of their neighbors.

It generally does what one would expect, but setting up a jail
still takes a little knowledge.

A few notes:

I have no scripts for setting up a jail, don't ask me for them.

The IP number should be an alias on one of the interfaces.

mount a /proc in each jail, it will make ps more useable.

/proc/<pid>/status tells the hostname of the prison for
jailed processes.

Quotas are only sensible if you have a mountpoint per prison.

There are no privisions for stopping resource-hogging.

Some "#ifdef INET" and similar may be missing (send patches!)

If somebody wants to take it from here and develop it into
more of a "virtual machine" they should be most welcome!

Tools, comments, patches & documentation most welcome.

Have fun...

Sponsored by: http://www.rndassociates.com/
Run for almost a year by: http://www.servetheweb.com/

Regenerate (padding for pread and pwrite).

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>

regenerate (+kldsym)

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.

Regnerate.

Updated generated files.

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.

regen after signanosleep nuke

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.

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.

Updated generated files.

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

Regenerate after changing makesyscalls.sh.

Make COMPAT_43 and COMPAT_SUNOS new-style options.

Move the "retval" (3rd) parameter from all syscall functions and put
it in struct proc instead.

This fixes a boatload of compiler warning, and removes a lot of cruft
from the sources.

I have not removed the /*ARGSUSED*/, they will require some looking at.

libkvm, ps and other userland struct proc frobbing programs will need
recompiled.

Remade syscalls.master derived files.

Regenerate _after_ the commit to syscalls.master

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.

Regenerate (added poll etc)

Regenerate

Updated generated files (makesyscalls.sh changed). Only sysproto.h
really changed.

Modifications to existing files to support the initial AIO/LIO and
kernel based threading support.

Regenerate

regenerate

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.

Regenerate (added issetugid)

Regenerate

Regenerate to include correct Id string

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>

Updated generated files.

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.

Don't use __dead in the kernel. It was an obfuscation for gcc >= 2.5
and a no-op for gcc >= 2.6.

Reran makesyscalls.sh after changing select()'s first argument to 'int'.

Remove the kernel FD_SETSIZE limit for select().
Make select()'s first argument 'int' not 'u_int'.

Reviewed by: bde

reran makesyscalls.sh after "int len" -> "size_t len" changes.

Run makesyscalls to regen the tables.

Add an option NFS_NOSERVER which saves 100K in the install kernel (or
any other kernel that uses it). Use with option NFS.

reran makesyscalls..

Convert SYSV IPC to new-style options. (I hope I got everything...)
The LKMs will need an extra file, to come later.

Converted two options over to the new scheme: USER_LDT and KTRACE.

Regenerated from syscalls.master...

Updated machine-generated files.

Update sysproto.h to reflect changes.

Remake generated files to reflect makesyscalls.sh changes

Update machine-generated files.