Commit Graph

165 Commits

Author SHA1 Message Date
Attilio Rao
0e9eb108f0 Cleanup lockmgr interface and exported KPI:
- Remove the "thread" argument from the lockmgr() function as it is
  always curthread now
- Axe lockcount() function as it is no longer used
- Axe LOCKMGR_ASSERT() as it is bogus really and no currently used.
  Hopefully this will be soonly replaced by something suitable for it.
- Remove the prototype for dumplockinfo() as the function is no longer
  present

Addictionally:
- Introduce a KASSERT() in lockstatus() in order to let it accept only
  curthread or NULL as they should only be passed
- Do a little bit of style(9) cleanup on lockmgr.h

KPI results heavilly broken by this change, so manpages and
FreeBSD_version will be modified accordingly by further commits.

Tested by: matteo
2008-01-24 12:34:30 +00:00
Jeff Roberson
ace8398da0 Refactor select to reduce contention and hide internal implementation
details from consumers.

 - Track individual selecters on a per-descriptor basis such that there
   are no longer collisions and after sleeping for events only those
   descriptors which triggered events must be rescaned.
 - Protect the selinfo (per descriptor) structure with a mtx pool mutex.
   mtx pool mutexes were chosen to preserve api compatibility with
   existing code which does nothing but bzero() to setup selinfo
   structures.
 - Use a per-thread wait channel rather than a global wait channel.
 - Hide select implementation details in a seltd structure which is
   opaque to the rest of the kernel.
 - Provide a 'selsocket' interface for those kernel consumers who wish to
   select on a socket when they have no fd so they no longer have to
   be aware of select implementation details.

Tested by:	kris
Reviewed on:	arch
2007-12-16 06:21:20 +00:00
Julian Elischer
3745c395ec Rename the kthread_xxx (e.g. kthread_create()) calls
to kproc_xxx as they actually make whole processes.
Thos makes way for us to add REAL kthread_create() and friends
that actually make theads. it turns out that most of these
calls actually end up being moved back to the thread version
when it's added. but we need to make this cosmetic change first.

I'd LOVE to do this rename in 7.0  so that we can eventually MFC the
new kthread_xxx() calls.
2007-10-20 23:23:23 +00:00
Tai-hwa Liang
5ee1ac4645 Fixing the mount_smbfs(8) hanging by utilising the destroy_dev_sched() KPI.
Relevant threads:

  http://lists.freebsd.org/pipermail/freebsd-current/2007-June/074329.html

Reviewed by:	kib, bp (slightly different version)
Tested by:	Yuri Pankov <yuri.pankov at gmail dot com>,
		Jiawei Ye <leafy7382 at gmail dot com>
Approved by:	re (kensmith)
2007-07-10 09:23:10 +00:00
Matt Jacob
2d494bc6f5 Initialize some variables that GCC4.2 thinks might possibly be used without
being initialized.
2007-06-15 23:49:54 +00:00
Jeff Roberson
982d11f836 Commit 14/14 of sched_lock decomposition.
- Use thread_lock() rather than sched_lock for per-thread scheduling
   sychronization.
 - Use the per-process spinlock rather than the sched_lock for per-process
   scheduling synchronization.

Tested by:      kris, current@
Tested on:      i386, amd64, ULE, 4BSD, libthr, libkse, PREEMPTION, etc.
Discussed with: kris, attilio, kmacy, jhb, julian, bde (small parts each)
2007-06-05 00:00:57 +00:00
Robert Watson
5e3f7694b1 Replace custom file descriptor array sleep lock constructed using a mutex
and flags with an sxlock.  This leads to a significant and measurable
performance improvement as a result of access to shared locking for
frequent lookup operations, reduced general overhead, and reduced overhead
in the event of contention.  All of these are imported for threaded
applications where simultaneous access to a shared file descriptor array
occurs frequently.  Kris has reported 2x-4x transaction rate improvements
on 8-core MySQL benchmarks; smaller improvements can be expected for many
workloads as a result of reduced overhead.

- Generally eliminate the distinction between "fast" and regular
  acquisisition of the filedesc lock; the plan is that they will now all
  be fast.  Change all locking instances to either shared or exclusive
  locks.

- Correct a bug (pointed out by kib) in fdfree() where previously msleep()
  was called without the mutex held; sx_sleep() is now always called with
  the sxlock held exclusively.

- Universally hold the struct file lock over changes to struct file,
  rather than the filedesc lock or no lock.  Always update the f_ops
  field last. A further memory barrier is required here in the future
  (discussed with jhb).

- Improve locking and reference management in linux_at(), which fails to
  properly acquire vnode references before using vnode pointers.  Annotate
  improper use of vn_fullpath(), which will be replaced at a future date.

In fcntl(), we conservatively acquire an exclusive lock, even though in
some cases a shared lock may be sufficient, which should be revisited.
The dropping of the filedesc lock in fdgrowtable() is no longer required
as the sxlock can be held over the sleep operation; we should consider
removing that (pointed out by attilio).

Tested by:	kris
Discussed with:	jhb, kris, attilio, jeff
2007-04-04 09:11:34 +00:00
Tai-hwa Liang
85e7c591e0 Backing out the wrong fix which could possibly trash the memory if devfs
tries to drop the reference count after our close routine returns.

A more correct fix is to defer the destroy_dev() to a taskqueue(either
in devfs or locally).

Reminded by:	jhb
2007-02-09 17:22:10 +00:00
Tai-hwa Liang
c6b54e61cc It turns out that devfs_close() does a dev_refthread() before invoking
device specific d_close(), which makes subsequent destroy_dev() being
blocked in the "devdrn" loop.

This bandaid should fix the smbfs hang/crashing observed on -CURRENT since
the introduction of sys/kern/kern_conf.c:1.199:

 	# mount_smbfs -I server //server/share /mnt
 	Password:
 	[hang]

Reviewed by:	bp
See also:	http://lists.freebsd.org/pipermail/cvs-src/2006-November/071379.html
2007-02-09 02:54:13 +00:00
Robert Watson
acd3428b7d Sweep kernel replacing suser(9) calls with priv(9) calls, assigning
specific privilege names to a broad range of privileges.  These may
require some future tweaking.

Sponsored by:           nCircle Network Security, Inc.
Obtained from:          TrustedBSD Project
Discussed on:           arch@
Reviewed (at least in part) by: mlaier, jmg, pjd, bde, ceri,
                        Alex Lyashkov <umka at sevcity dot net>,
                        Skip Ford <skip dot ford at verizon dot net>,
                        Antoine Brodin <antoine dot brodin at laposte dot net>
2006-11-06 13:42:10 +00:00
Boris Popov
834340ae9a It seems to be safe to ignore 'file not locked' error
from server.  This effectively suppresses 'Unmapped error 1:158'.

MFC after:	1 month
2006-11-05 06:31:08 +00:00
Marcel Moolenaar
a6a4232f96 Fix misalignment bugs caused by invalid type casts of pointers
returned by md_reserve(). Space reserved by mb_reserve() is
byte aligned and need to be used in conjunction with le16enc()
and le32enc().

Tested on: ia64
2006-08-22 03:05:51 +00:00
John Baldwin
ac695ab41b - Fix ncp_poll() to not panic if the socket doesn't have any pending data.
We have to adjust curthread's state enough so that it appears to be
  in a poll(2) or select(2) call so that selrecord() will work and then
  teardown that state after calling sopoll().
- Fix some minor nits in nearby ncp_sock_rselect() and in the identical
  nbssn_rselect() function in the netsmb code:
  - Don't call nb_poll()/ncp_poll() now that ncp_poll() already fakes up
    poll(2) state since the rselect() functions already do that.  Just
    invoke sopoll() directly.
  - To make things slightly more intuitive, store the results of sopoll()
    in a new 'revents' variable rather than 'error' since that's what
    sopoll() actually returns.
  - If the requested timeout time has been exceeded by the time we get
    ready to block, then return EWOULDBLOCK rather than 0 to signal a
    timeout as this is what the calling code expects.

Tested by:	Eric Christeson <eric.j.christeson AT gmail> (1)
MFC after:	1 week
2006-08-03 15:31:52 +00:00
Robert Watson
b0668f7151 soreceive_generic(), and sopoll_generic(). Add new functions sosend(),
soreceive(), and sopoll(), which are wrappers for pru_sosend,
pru_soreceive, and pru_sopoll, and are now used univerally by socket
consumers rather than either directly invoking the old so*() functions
or directly invoking the protocol switch method (about an even split
prior to this commit).

This completes an architectural change that was begun in 1996 to permit
protocols to provide substitute implementations, as now used by UDP.
Consumers now uniformly invoke sosend(), soreceive(), and sopoll() to
perform these operations on sockets -- in particular, distributed file
systems and socket system calls.

Architectural head nod:	sam, gnn, wollman
2006-07-24 15:20:08 +00:00
John Baldwin
74ed4a9a17 Always lock the lockmgr lock when creating an smb connection object rather
than only locking it if INVARIANTS is enabled.  All the callers expect
smb_co_init() to return with the lock held.

Tested by:	"Jiawei Ye" <leafy7382 at gmail>
2006-07-17 16:12:59 +00:00
Yaroslav Tykhiy
8d96e45531 Retire NETSMBCRYPTO as a kernel option and make its functionality
enabled by default in NETSMB and smbfs.ko.

With the most of modern SMB providers requiring encryption by
default, there is little sense left in keeping the crypto part
of NETSMB optional at the build time.

This will also return smbfs.ko to its former properties users
are rather accustomed to.

Discussed with:		freebsd-stable, re (scottl)
Not objected by:	bp, tjr (silence)
MFC after:		5 days
2006-03-05 22:52:17 +00:00
Christian S.J. Peron
ed9e2ed449 Although we check the return value of copyin(9) while determaining how
long the string is in userspace, afterwards we call malloc(M_WAITOK),
which could sleep for an unknown amount of time. Check the return
value of copyin(9) just to be sure that nothing has changed during that
time.

Found with:	Coverity Prevent (tm)
MFC after:	1 week
2006-01-16 17:03:21 +00:00
Boris Popov
19caf6c088 Prevent module unloading if there are active connections.
PR:		kern/89085
Submitted by:	Rostislav Krasny
MFC after:	1 week
2005-11-22 02:15:46 +00:00
Robert Watson
5bb84bc84b Normalize a significant number of kernel malloc type names:
- Prefer '_' to ' ', as it results in more easily parsed results in
  memory monitoring tools such as vmstat.

- Remove punctuation that is incompatible with using memory type names
  as file names, such as '/' characters.

- Disambiguate some collisions by adding subsystem prefixes to some
  memory types.

- Generally prefer lower case to upper case.

- If the same type is defined in multiple architecture directories,
  attempt to use the same name in additional cases.

Not all instances were caught in this change, so more work is required to
finish this conversion.  Similar changes are required for UMA zone names.
2005-10-31 15:41:29 +00:00
Boris Popov
ef29b0f6a1 Allow user to override default port numbers used by communication
protocols.  This is very useful for tunneled SMB connections.

MFC after:	4 weeks
2005-10-02 08:32:49 +00:00
Robert Watson
6a113b3de7 Merge the dev_clone and dev_clone_cred event handlers into a single
event handler, dev_clone, which accepts a credential argument.
Implementors of the event can ignore it if they're not interested,
and most do.  This avoids having multiple event handler types and
fall-back/precedence logic in devfs.

This changes the kernel API for /dev cloning, and may affect third
party packages containg cloning kernel modules.

Requested by:	phk
MFC after:	3 days
2005-08-08 19:55:32 +00:00
R. Imura
080e3a63b3 Change API of mb_copy_t in libmchain so that netsmb can handle
multibyte character share name correctly.

Reviewed by:	bp
2005-07-29 13:22:37 +00:00
Peter Edwards
34ddec12b1 lockmgr(...,LK_DRAIN,...) requires a balancing LK_RELEASE: recent
INVARIANTS dependent checks in userret() pinpointed a missing
invocation here.

Remove an unused variable while here.

Reviewed By: bp@
Reported By: yongari@
MFC After: 3 days
2005-05-13 11:27:48 +00:00
Poul-Henning Kamp
f4f6abcb4e Explicitly hold a reference to the cdev we have just cloned. This
closes the race where the cdev was reclaimed before it ever made it
back to devfs lookup.
2005-03-31 12:19:44 +00:00
Warner Losh
c398230b64 /* -> /*- for license, minor formatting changes 2005-01-07 01:45:51 +00:00
Poul-Henning Kamp
38bb5ccdfd Don't use vn_todev(). 2004-11-10 07:16:59 +00:00
Alexander Kabaev
445e045b0d Avoid casts as lvalues. 2004-07-28 06:59:55 +00:00
Robert Watson
9535efc00d Merge additional socket buffer locking from rwatson_netperf:
- Lock down low hanging fruit use of sb_flags with socket buffer
  lock.

- Lock down low hanging fruit use of so_state with socket lock.

- Lock down low hanging fruit use of so_options.

- Lock down low-hanging fruit use of sb_lowwat and sb_hiwat with
  socket buffer lock.

- Annotate situations in which we unlock the socket lock and then
  grab the receive socket buffer lock, which are currently actually
  the same lock.  Depending on how we want to play our cards, we
  may want to coallesce these lock uses to reduce overhead.

- Convert a if()->panic() into a KASSERT relating to so_state in
  soaccept().

- Remove a number of splnet()/splx() references.

More complex merging of socket and socket buffer locking to
follow.
2004-06-17 22:48:11 +00:00
Poul-Henning Kamp
f3732fd15b Second half of the dev_t cleanup.
The big lines are:
	NODEV -> NULL
	NOUDEV -> NODEV
	udev_t -> dev_t
	udev2dev() -> findcdev()

Various minor adjustments including handling of userland access to kernel
space struct cdev etc.
2004-06-17 17:16:53 +00:00
Poul-Henning Kamp
89c9c53da0 Do the dreaded s/dev_t/struct cdev */
Bump __FreeBSD_version accordingly.
2004-06-16 09:47:26 +00:00
Robert Watson
c0b99ffa02 The socket field so_state is used to hold a variety of socket related
flags relating to several aspects of socket functionality.  This change
breaks out several bits relating to send and receive operation into a
new per-socket buffer field, sb_state, in order to facilitate locking.
This is required because, in order to provide more granular locking of
sockets, different state fields have different locking properties.  The
following fields are moved to sb_state:

  SS_CANTRCVMORE            (so_state)
  SS_CANTSENDMORE           (so_state)
  SS_RCVATMARK              (so_state)

Rename respectively to:

  SBS_CANTRCVMORE           (so_rcv.sb_state)
  SBS_CANTSENDMORE          (so_snd.sb_state)
  SBS_RCVATMARK             (so_rcv.sb_state)

This facilitates locking by isolating fields to be located with other
identically locked fields, and permits greater granularity in socket
locking by avoiding storing fields with different locking semantics in
the same short (avoiding locking conflicts).  In the future, we may
wish to coallesce sb_state and sb_flags; for the time being I leave
them separate and there is no additional memory overhead due to the
packing/alignment of shorts in the socket buffer structure.
2004-06-14 18:16:22 +00:00
Poul-Henning Kamp
5dba30f15a add missing #include <sys/module.h> 2004-05-30 20:27:19 +00:00
Robert Watson
746e5bf09b Rename dup_sockaddr() to sodupsockaddr() for consistency with other
functions in kern_socket.c.

Rename the "canwait" field to "mflags" and pass M_WAITOK and M_NOWAIT
in from the caller context rather than "1" or "0".

Correct mflags pass into mac_init_socket() from previous commit to not
include M_ZERO.

Submitted by:	sam
2004-03-01 03:14:23 +00:00
Don Lewis
47934cef8f Split the mlock() kernel code into two parts, mlock(), which unpacks
the syscall arguments and does the suser() permission check, and
kern_mlock(), which does the resource limit checking and calls
vm_map_wire().  Split munlock() in a similar way.

Enable the RLIMIT_MEMLOCK checking code in kern_mlock().

Replace calls to vslock() and vsunlock() in the sysctl code with
calls to kern_mlock() and kern_munlock() so that the sysctl code
will obey the wired memory limits.

Nuke the vslock() and vsunlock() implementations, which are no
longer used.

Add a member to struct sysctl_req to track the amount of memory
that is wired to handle the request.

Modify sysctl_wire_old_buffer() to return an error if its call to
kern_mlock() fails.  Only wire the minimum of the length specified
in the sysctl request and the length specified in its argument list.
It is recommended that sysctl handlers that use sysctl_wire_old_buffer()
should specify reasonable estimates for the amount of data they
want to return so that only the minimum amount of memory is wired
no matter what length has been specified by the request.

Modify the callers of sysctl_wire_old_buffer() to look for the
error return.

Modify sysctl_old_user to obey the wired buffer length and clean up
its implementation.

Reviewed by:	bms
2004-02-26 00:27:04 +00:00
Poul-Henning Kamp
dc08ffec87 Device megapatch 4/6:
Introduce d_version field in struct cdevsw, this must always be
initialized to D_VERSION.

Flip sense of D_NOGIANT flag to D_NEEDGIANT, this involves removing
four D_NOGIANT flags and adding 145 D_NEEDGIANT flags.
2004-02-21 21:10:55 +00:00
Tim J. Robbins
fd13f79252 Use automatic major number allocation for nsmb devices. 2004-02-11 12:49:49 +00:00
Tim J. Robbins
190b2c4f8a Add support for SMB request signing, which prevents "man in the middle"
attacks and is required to connect to Windows 2003 servers in their
default configuration. This adds an extra field to the SMB header
containing the truncated 64-bit MD5 digest of a key (a function of the
user's password and the server's authentication challenge), an implicit
sequence number, and the message data itself. As signing each message
imposes a significant performance penalty, we only enable it if the
server will not let us connect without it; this should eventually become
an option to mount_smbfs.
2004-01-02 22:38:42 +00:00
Max Khon
c4f02a891f - Support for multibyte charsets in LIBICONV.
- CD9660_ICONV, NTFS_ICONV and MSDOSFS_ICONV kernel options
(with corresponding modules).
- kiconv(3) for loadable charset conversion tables support.

Submitted by:	Ryuichiro Imura <imura@ryu16.org>
2003-09-26 20:26:25 +00:00
Marcel Moolenaar
e51fe8759d Rewrite the code that uses the try/catch paradigm implemented by
goto and abstracted by the itry, ithrow and icatch macros (among
others). The problem with this code is that it doesn't compile on
ia64. The compiler is sufficiently confused that it inserts a call
to __ia64_save_stack_nonlock(). This is a magic function that saves
enough of the stack to allow for non-local gotos, such as would be
the case for nested functions. Since it's not a compiler defined
function, it needs a runtime implementation. This we have not in a
standalone compilation as is the kernel.

There's no indication that the compiler is not confused on other
platforms. It's likely that saving the stack in those cases is
trivial enough that the compiler doesn't need to off-load the
complexity to a runtime function.

The code is believed to be correctly translated, but has not been
tested. The overall structure remained the same, except that it's
made explicit. The macros that implement the try/catch construct
have been removed to avoid reintroduction of their use. It's not
a good idea.

In general the rewritten code is slightly more optimal in that it
doesn't need as much stack space and generally is smaller in size.

Found by: LINT
2003-08-23 21:43:33 +00:00
Tim J. Robbins
93e3ed5ab1 Reserve space for the trailing null byte in the srvname member of
struct smb_vc_info.

PR:		46902
2003-07-27 11:36:00 +00:00
Peter Wemm
7d6207b7dd size_t != int. Make this compile on 64 bit platforms (eg: amd64).
Also, "u_short value; if (value > 0xffff)" can never be true.
2003-07-24 01:59:18 +00:00
Poul-Henning Kamp
3b6d965263 Add a f_vnode field to struct file.
Several of the subtypes have an associated vnode which is used for
stuff like the f*() functions.

By giving the vnode a speparate field, a number of checks for the specific
subtype can be replaced simply with a check for f_vnode != NULL, and
we can later free f_data up to subtype specific use.

At this point in time, f_data still points to the vnode, so any code I
might have overlooked will still work.
2003-06-22 08:41:43 +00:00
Tim J. Robbins
62ca80a7ff Avoid dereferencing the thread pointer in smb_iod_addrq() if it's NULL.
Fixes mdconfig -t vnode on smbfs: mdsetcred()'s "horrible kludge"
calls into smbfs VOP_READ with a NULL uio_td.
2003-06-14 15:45:34 +00:00
David E. O'Brien
ab0de15baf Use __FBSDID(). 2003-06-11 05:37:42 +00:00
John Baldwin
90af4afacb - Merge struct procsig with struct sigacts.
- Move struct sigacts out of the u-area and malloc() it using the
  M_SUBPROC malloc bucket.
- Add a small sigacts_*() API for managing sigacts structures: sigacts_alloc(),
  sigacts_free(), sigacts_copy(), sigacts_share(), and sigacts_shared().
- Remove the p_sigignore, p_sigacts, and p_sigcatch macros.
- Add a mutex to struct sigacts that protects all the members of the struct.
- Add sigacts locking.
- Remove Giant from nosys(), kill(), killpg(), and kern_sigaction() now
  that sigacts is locked.
- Several in-kernel functions such as psignal(), tdsignal(), trapsignal(),
  and thread_stopped() are now MP safe.

Reviewed by:	arch@
Approved by:	re (rwatson)
2003-05-13 20:36:02 +00:00
Jeff Roberson
4093529dee - Move p->p_sigmask to td->td_sigmask. Signal masks will be per thread with
a follow on commit to kern_sig.c
 - signotify() now operates on a thread since unmasked pending signals are
   stored in the thread.
 - PS_NEEDSIGCHK moves to TDF_NEEDSIGCHK.
2003-03-31 22:49:17 +00:00
Tim J. Robbins
fe72c63e22 Remove fragments of support for the FreeBSD 3.x and 4.x branches. 2003-03-06 10:38:18 +00:00
Peter Wemm
3c6b084e96 Finish driving a stake through the heart of netns and the associated
ifdefs scattered around the place - its dead Jim!

The SMB stuff had stolen AF_NS, make it official.
2003-03-05 19:24:24 +00:00
Poul-Henning Kamp
7ac40f5f59 Gigacommit to improve device-driver source compatibility between
branches:

Initialize struct cdevsw using C99 sparse initializtion and remove
all initializations to default values.

This patch is automatically generated and has been tested by compiling
LINT with all the fields in struct cdevsw in reverse order on alpha,
sparc64 and i386.

Approved by:    re(scottl)
2003-03-03 12:15:54 +00:00
Tim J. Robbins
39abaa5fab Use noread(), nowrite() and nopoll() instead of our own stub functions. 2003-02-27 14:35:21 +00:00
Poul-Henning Kamp
e3163ad47d NODEVFS cleanup: Don't call cdevsw_{add,remove}() 2003-02-26 21:04:51 +00:00
Warner Losh
a163d034fa Back out M_* changes, per decision of the TRB.
Approved by: trb
2003-02-19 05:47:46 +00:00
Tim J. Robbins
fbbad44413 Lock proc while manipulating p_sigmask p_sigignore and p_siglist. 2003-02-14 09:12:12 +00:00
Tim J. Robbins
a8c8a6cbc0 Pass a minor number instead of a unit number to make_dev().
Devices with the wrong major were being created for units >255.
2003-02-07 23:29:57 +00:00
Alfred Perlstein
44956c9863 Remove M_TRYWAIT/M_WAITOK/M_WAIT. Callers should use 0.
Merge M_NOWAIT/M_DONTWAIT into a single flag M_NOWAIT.
2003-01-21 08:56:16 +00:00
Matthew Dillon
48e3128b34 Bow to the whining masses and change a union back into void *. Retain
removal of unnecessary casts and throw in some minor cleanups to see if
anyone complains, just for the hell of it.
2003-01-13 00:33:17 +00:00
Matthew Dillon
cd72f2180b Change struct file f_data to un_data, a union of the correct struct
pointer types, and remove a huge number of casts from code using it.

Change struct xfile xf_data to xun_data (ABI is still compatible).

If we need to add a #define for f_data and xf_data we can, but I don't
think it will be necessary.  There are no operational changes in this
commit.
2003-01-12 01:37:13 +00:00
Jens Schweikhardt
9d5abbddbf Correct typos, mostly s/ a / an / where appropriate. Some whitespace cleanup,
especially in troff files.
2003-01-01 18:49:04 +00:00
Alfred Perlstein
13438f6823 When compiling the kernel do not implicitly include filedesc.h from proc.h,
this was causing filedesc work to be very painful.
In order to make this work split out sigio definitions to thier own header
(sigio.h) which is included from proc.h for the time being.
2003-01-01 01:56:19 +00:00
Jens Schweikhardt
d64ada501a Fix typos, mostly s/ an / a / where appropriate and a few s/an/and/
Add FreeBSD Id tag where missing.
2002-12-30 21:18:15 +00:00
Bosko Milekic
86fea6be59 o Untangle the confusion with the malloc flags {M_WAITOK, M_NOWAIT} and
the mbuf allocator flags {M_TRYWAIT, M_DONTWAIT}.
o Fix a bpf_compat issue where malloc() was defined to just call
  bpf_alloc() and pass the 'canwait' flag(s) along.  It's been changed
  to call bpf_alloc() but pass the corresponding M_TRYWAIT or M_DONTWAIT
  flag (and only one of those two).

Submitted by: Hiten Pandya <hiten@unixdaemons.com> (hiten->commit_count++)
2002-12-19 22:58:27 +00:00
Robert Drehmel
0adb6d7a49 Remove the hto(be|le)[slq] and (be|le)toh[slq] macros defined in
_KERNEL scope from "src/sys/sys/mchain.h".

Replace each occurrence of the above in _KERNEL scope with the
appropriate macro from the set of hto(be|le)(16|32|64) and
(be|le)toh(16|32|64) from "src/sys/sys/endian.h".

Tested by:		tjr
Requested by:		comment marked with XXX
2002-12-16 16:20:06 +00:00
Max Khon
cf37bfb0ec fix connecting to (samba) server when share-level security is in effect
(do not send second password at all)

Approved by:	bp, re
MFC after:	1 week
2002-12-07 08:28:56 +00:00
Tim J. Robbins
bd32b70236 Fix a fatal typo introduced in revision 1.13 that caused the mbuf chains to
be created incorrectly for requests larger than NB_SORECEIVE_CHUNK bytes.

Approved by:	re
2002-11-26 23:53:28 +00:00
John Baldwin
985cce5132 - Change mb_copy_t to take a size_t as the length argument instead of an
int.
- Change the local variable in smb_copy_iconv() from an int to a size_t.

These make smb_copy_iconv() happy in a 64-bit world.
2002-11-08 21:26:32 +00:00
Scott Long
316ec49abd Some kernel threads try to do significant work, and the default KSTACK_PAGES
doesn't give them enough stack to do much before blowing away the pcb.
This adds MI and MD code to allow the allocation of an alternate kstack
who's size can be speficied when calling kthread_create.  Passing the
value 0 prevents the alternate kstack from being created.  Note that the
ia64 MD code is missing for now, and PowerPC was only partially written
due to the pmap.c being incomplete there.
Though this patch does not modify anything to make use of the alternate
kstack, acpi and usb are good candidates.

Reviewed by:	jake, peter, jhb
2002-10-02 07:44:29 +00:00
Juli Mallett
1d9c56964d Back our kernel support for reliable signal queues.
Requested by:	rwatson, phk, and many others
2002-10-01 17:15:53 +00:00
Juli Mallett
70d4d0c0f5 Convert use of p_siglist and old SIG*() macros to use <sys/ksiginfo.h>
prototyped functions to get a sigset_t, and further to check for any
queued signals, rather than an empty signal set, to go with the move
to signal queues rather than signal sets.
2002-09-30 20:48:29 +00:00
Poul-Henning Kamp
7ed60de837 Use m_length() instead of home-rolled versions. 2002-09-18 19:44:14 +00:00
Poul-Henning Kamp
9f86067a9c Add missing #include <sys/mbuf.h> 2002-09-18 14:21:52 +00:00
Boris Popov
994ad1809e Permit an empty username which is useful for browsing. 2002-09-18 07:43:21 +00:00
Boris Popov
3c30400408 Increase send/receive queue to accomodate large readx/writex requests.
Receive packets in a small pieces (NB_SORECEIVE_CHUNK), so TCP slowstart will
get its ACKs faster.

Obtained from:	Darwin
2002-09-18 07:38:10 +00:00
Boris Popov
209ec6ada5 Reserve a transport parameter name and number for Darwin.
Obtained from:	Darwin
MFC after:	2 weeks
2002-09-16 10:57:13 +00:00
Boris Popov
70f9b9d94f Implement support for mixed case passwords.
Obtained from:	Darwin
MFC after:	2 weeks
2002-09-16 10:50:38 +00:00
Boris Popov
e2a70cff10 Add support for large readx and writex functions if server supports them.
Obtained from:	Darwin
MFC after:	2 weeks
2002-09-16 10:18:34 +00:00
Boris Popov
ab93c874b4 Enable browsing of NetApp servers (use ascii mode).
Obtained from:	Darwin (PR-3002667)
MFC after:	2 weeks
2002-09-16 09:51:58 +00:00
Boris Popov
8341a67def Add more constants for future use in kernel and userland.
Obtained from:	Darwin
2002-09-16 09:26:07 +00:00
Bruce Evans
ecc56e1395 <sys/lock.h> is a prerequisite for <sys/mutex.h>, so include the former
here before the latter instead of depending on namespace pollution in
<sys/mumble.h> or on accidentally placed includes in netsmb/*.c.
2002-08-27 12:22:06 +00:00
Bruce Evans
2c55fd74fc Include <sys/lockmgr.h> for old lock interfaces instead of including
<sys/lock.h> solely for its namespace pollution.
2002-08-27 10:28:33 +00:00
Don Lewis
5c38b6dbce Wire the sysctl output buffer before grabbing any locks to prevent
SYSCTL_OUT() from blocking while locks are held.  This should
only be done when it would be inconvenient to make a temporary copy of
the data and defer calling SYSCTL_OUT() until after the locks are
released.
2002-07-28 19:59:31 +00:00
Seigo Tanimura
4cc20ab1f0 Back out my lats commit of locking down a socket, it conflicts with hsu's work.
Requested by:	hsu
2002-05-31 11:52:35 +00:00
Peter Wemm
dacd8bbbd6 Fix trivial warning:
smb_iod.c:560: deprecated use of label at end of compound statement
2002-05-24 05:40:51 +00:00
Seigo Tanimura
243917fe3b Lock down a socket, milestone 1.
o Add a mutex (sb_mtx) to struct sockbuf. This protects the data in a
  socket buffer. The mutex in the receive buffer also protects the data
  in struct socket.

o Determine the lock strategy for each members in struct socket.

o Lock down the following members:

  - so_count
  - so_options
  - so_linger
  - so_state

o Remove *_locked() socket APIs.  Make the following socket APIs
  touching the members above now require a locked socket:

 - sodisconnect()
 - soisconnected()
 - soisconnecting()
 - soisdisconnected()
 - soisdisconnecting()
 - sofree()
 - soref()
 - sorele()
 - sorwakeup()
 - sotryfree()
 - sowakeup()
 - sowwakeup()

Reviewed by:	alfred
2002-05-20 05:41:09 +00:00
Seigo Tanimura
960ed29c4b Revert the change of #includes in sys/filedesc.h and sys/socketvar.h.
Requested by:	bde

Since locking sigio_lock is usually followed by calling pgsigio(),
move the declaration of sigio_lock and the definitions of SIGIO_*() to
sys/signalvar.h.

While I am here, sort include files alphabetically, where possible.
2002-04-30 01:54:54 +00:00
Mike Barcroft
a30d4b3270 Move the new byte order function prototypes from <sys/param.h> to
<sys/endian.h>.  This puts us in line with NetBSD and OpenBSD.
2002-04-26 22:48:23 +00:00
Boris Popov
30fc2d74fa Initialize thread select queue in the same way as rev 1.93 of sys_generic.c
does.

Missed and found by:	alfred
2002-04-23 13:29:23 +00:00
Boris Popov
af9b5e8fe5 Recongnize more error codes returned by W2K servers.
MFC after:	4 days
2002-04-17 03:14:28 +00:00
Boris Popov
0904a0d3fe Add more NetBIOS name types.
MFC after:	4 days
2002-04-17 03:12:24 +00:00
John Baldwin
6008862bc2 Change callers of mtx_init() to pass in an appropriate lock type name. In
most cases NULL is passed, but in some cases such as network driver locks
(which use the MTX_NETWORK_LOCK macro) and UMA zone locks, a name is used.

Tested on:	i386, alpha, sparc64
2002-04-04 21:03:38 +00:00
John Baldwin
44731cab3b Change the suser() API to take advantage of td_ucred as well as do a
general cleanup of the API.  The entire API now consists of two functions
similar to the pre-KSE API.  The suser() function takes a thread pointer
as its only argument.  The td_ucred member of this thread must be valid
so the only valid thread pointers are curthread and a few kernel threads
such as thread0.  The suser_cred() function takes a pointer to a struct
ucred as its first argument and an integer flag as its second argument.
The flag is currently only used for the PRISON_ROOT flag.

Discussed on:	smp@
2002-04-01 21:31:13 +00:00
Alfred Perlstein
b0a3bfbdc6 Missed this file for select SMP fixes associated with rev 1.93 of
kern/sys_generic.c
2002-03-14 05:16:18 +00:00
John Baldwin
a854ed9893 Simple p_ucred -> td_ucred changes to start using the per-thread ucred
reference.
2002-02-27 18:32:23 +00:00
Boris Popov
6cd9842f4b Remove redundant checks for iovcnt > 1. This should be handled properly
in the subr_mchain.

Obtained from:	Darwin project
MFC after:	2 weeks
2002-02-21 16:18:39 +00:00
Boris Popov
daa35ded10 Add unicode related definition for future use. Descibe Samba bug.
Obtained from:	Darwin project
MFC after:	2 weeks
2002-02-21 16:13:19 +00:00
Boris Popov
be32ca523d Add subfunction definition for future use.
MFC after:	2 weeks
2002-02-21 16:10:42 +00:00
Alfred Perlstein
426da3bcfb SMP Lock struct file, filedesc and the global file list.
Seigo Tanimura (tanimura) posted the initial delta.

I've polished it quite a bit reducing the need for locking and
adapting it for KSE.

Locks:

1 mutex in each filedesc
   protects all the fields.
   protects "struct file" initialization, while a struct file
     is being changed from &badfileops -> &pipeops or something
     the filedesc should be locked.

1 mutex in each struct file
   protects the refcount fields.
   doesn't protect anything else.
   the flags used for garbage collection have been moved to
     f_gcflag which was the FILLER short, this doesn't need
     locking because the garbage collection is a single threaded
     container.
  could likely be made to use a pool mutex.

1 sx lock for the global filelist.

struct file *	fhold(struct file *fp);
        /* increments reference count on a file */

struct file *	fhold_locked(struct file *fp);
        /* like fhold but expects file to locked */

struct file *	ffind_hold(struct thread *, int fd);
        /* finds the struct file in thread, adds one reference and
                returns it unlocked */

struct file *	ffind_lock(struct thread *, int fd);
        /* ffind_hold, but returns file locked */

I still have to smp-safe the fget cruft, I'll get to that asap.
2002-01-13 11:58:06 +00:00
Boris Popov
fc75194c3c Spelling fixes.
PR:		kern/33131
Submitted by:	Anders Andersson <anders@hack.org>
MFC after:	1 week
2001-12-31 19:29:43 +00:00
Robert Watson
9c4d63da6d o Make the credential used by socreate() an explicit argument to
socreate(), rather than getting it implicitly from the thread
  argument.

o Make NFS cache the credential provided at mount-time, and use
  the cached credential (nfsmount->nm_cred) when making calls to
  socreate() on initially connecting, or reconnecting the socket.

This fixes bugs involving NFS over TCP and ipfw uid/gid rules, as well
as bugs involving NFS and mandatory access control implementations.

Reviewed by:	freebsd-arch
2001-12-31 17:45:16 +00:00
David E. O'Brien
6e551fb628 Update to C99, s/__FUNCTION__/__func__/,
also don't use ANSI string concatenation.
2001-12-10 08:09:49 +00:00
Andrew R. Reiter
d49d0ca7fb - Replace M_WAIT with M_TRYWAIT since the M_WAIT flag is deprecated.
Spotted by: bde
2001-12-09 17:48:08 +00:00