address" string to a netbuf/sockaddr "transport address". In the
case of an AF_LOCAL address, it was missing the code to actually
point the netbuf at the newly allocated sockaddr_un, so the caller
ended up with a netbuf containing junk.
Submitted by: Martin Blapp <mb@imp.ch>
than the default buffer size in the old RPC code (8800 bytes), and
it could not be overriden by the application. This caused problems
with CFS (/usr/port/security/cfs).
Change this default back to UDPMSGSIZE (8800 bytes), but more
importantly, allow applications to use larger message sizes for
all protocols if desired. Choose an arbitrary maximum message size
of 256k instead of using the default as the maximum (which is
silly).
Reported by: ache
Reviewed by: alfred, Martin Blapp <mb@imp.ch>
`nc_error' variables. Move the nc_lock mutex from mt_misc.c to a
static variable within this function, since it is only used here.
Add a new getnetconfigent() error code `NC_NOTFOUND' to report the
case where the specified netid was not found. Set nc_error in all
error cases in getnetconfigent() so that the error messages returned
by nc_(s)perror are always meaningful.
Add a terminating \n to the output of nc_perror() to match both
our manpage and other implementations of this function.
Reviewed by: deischen, alfred, Martin Blapp <mb@imp.ch>
RPC clients hanging. The real problem turned out to be missing
cleanup code; this was fixed in clnt_vc.c r1.5 and clnt_dg.c r1.4.
Submitted by: Martin Blapp <mb@imp.ch>
so that the underscored versions of the pthread functions get
declared. This removes around 300 lines of 'implicit declaration
of XXX' warnings from the output of a libc build with -Wall.
Reviewed by: Martin Blapp <mb@imp.ch>, alfred
to make asynchronous RPCs. This is needed to help fix ypbind, which can no
longer override the clnt_dg_call() method (formerly the clntudp_call()
method) due to all the internal descriptor locking code in TI-RPC. Turning
on this flag allows us to send an RPC request, then return immediately,
and handle a reply later, rather than being forced to do the request
and reply in a single function call.
Also fix a byte ordering bug: when clnt_dg_call() increments the XID
prior to transmitting a request, it uses the raw value, which is wrong.
The XID is stored in network byte order, i.e. big-endian. The CLSET_XID
and CLGET_XID commands in clnt_dg_control() use ntohl()/htonl() to get
the byte ordering right, but because clnt_dg_call() does not do this,
using CLSET_XID/CLGET_XID doesn't actually work, unless you're on a
big endian host, which we aren't (yet). Fix clnt_dg_call() to byte swap
properly when doing the increment.
Make struct cmessage visible from socket.h (about 4 places were
defining it for themselves which wasn't good)
Make __rpc_get_local_uid() useable and give it prototype that's
visible.
Fix some issues with printing out usernames from rpcbind and keyserv.
should have been repo-copied from it in the first place.
Apply all of our fixes up to and including revision 1.14 to
the original rpc.3 manpage, including conversion to mdoc(7).
associated changes that had to happen to make this possible as well as
bugs fixed along the way.
Bring in required TLI library routines to support this.
Since we don't support TLI we've essentially copied what NetBSD
has done, adding a thin layer to emulate direct the TLI calls
into BSD socket calls.
This is mostly from Sun's tirpc release that was made in 1994,
however some fixes were backported from the 1999 release (supposedly
only made available after this porting effort was underway).
The submitter has agreed to continue on and bring us up to the
1999 release.
Several key features are introduced with this update:
Client calls are thread safe. (1999 code has server side thread
safe)
Updated, a more modern interface.
Many userland updates were done to bring the code up to par with
the recent RPC API.
There is an update to the pthreads library, a function
pthread_main_np() was added to emulate a function of Sun's threads
library.
While we're at it, bring in NetBSD's lockd, it's been far too
long of a wait.
New rpcbind(8) replaces portmap(8) (supporting communication over
an authenticated Unix-domain socket, and by default only allowing
set and unset requests over that channel). It's much more secure
than the old portmapper.
Umount(8), mountd(8), mount_nfs(8), nfsd(8) have also been upgraded
to support TI-RPC and to support IPV6.
Umount(8) is also fixed to unmount pathnames longer than 80 chars,
which are currently truncated by the Kernel statfs structure.
Submitted by: Martin Blapp <mb@imp.ch>
Manpage review: ru
Secure RPC implemented by: wpaul
Reviewed by: David Cross <dec@freebsd.org>, jkh <jkh@freebsd.org>
Approved by: jkh <jkh@freebsd.org>
Obtained from: Ian Dowse <iedowse@maths.tcd.ie>, David Cross <dec@freebsd.org>
We have been running this patch on a production NIS server for 2.5 weeks now.
Normally we would have ypserv die at least once a week, and often many times
a day.
This patch treats and error from select as zeroing out the FD_SET to indicate
that no fds are ready for reading. This is safe because the rpc code
always re-inits the FDSET before calling select.
adding (weak definitions to) stubs for some of the pthread
functions. If the threads library is linked in, the real
pthread functions will pulled in.
Use the following convention for system calls wrapped by the
threads library:
__sys_foo - actual system call
_foo - weak definition to __sys_foo
foo - weak definition to __sys_foo
Change all libc uses of system calls wrapped by the threads
library from foo to _foo. In order to define the prototypes
for _foo(), we introduce namespace.h and un-namespace.h
(suggested by bde). All files that need to reference these
system calls, should include namespace.h before any standard
includes, then include un-namespace.h after the standard
includes and before any local includes. <db.h> is an exception
and shouldn't be included in between namespace.h and
un-namespace.h namespace.h will define foo to _foo, and
un-namespace.h will undefine foo.
Try to eliminate some of the recursive calls to MT-safe
functions in libc/stdio in preparation for adding a mutex
to FILE. We have recursive mutexes, but would like to avoid
using them if possible.
Remove uneeded includes of <errno.h> from a few files.
Add $FreeBSD$ to a few files in order to pass commitprep.
Approved by: -arch
just use _foo() <-- foo(). In the case of a libpthread that doesn't do
call conversion (such as linuxthreads and our upcoming libpthread), this
is adequate. In the case of libc_r, we still need three names, which are
now _thread_sys_foo() <-- _foo() <-- foo().
Convert all internal libc usage of: aio_suspend(), close(), fsync(), msync(),
nanosleep(), open(), fcntl(), read(), and write() to _foo() instead of foo().
Remove all internal libc usage of: creat(), pause(), sleep(), system(),
tcdrain(), wait(), and waitpid().
Make thread cancellation fully POSIX-compliant.
Suggested by: deischen
Updated date. 1987 was a while ago.
Removed trailing comma in NAME section.
Uncapitalised Bindresvport and Bindresvport_sa in DESCRIPTION section.
Don't use .Nm there either.
Added bindresvport_sa() to the RETURN VALUES and ERROR sections.
-changed bindresvport2 to bindresvport_sa
-merged the man into bindresvport.3
All discussion between Jean-Luc Richier <Jean-Luc.Richier@imag.fr>,
Theo de Raadt <deraadt@cvs.openbsd.org>, itojun, is reflected to
this code. (Actually Theo de Raadt write the code simultaneously as the
discussion change.)
points. For library functions, the pattern is __sleep() <--
_libc_sleep() <-- sleep(). The arrows represent weak aliases. For
system calls, the pattern is _read() <-- _libc_read() <-- read().
is an application space macro and the applications are supposed to be free
to use it as they please (but cannot). This is consistant with the other
BSD's who made this change quite some time ago. More commits to come.
MAN8+= rstat_svc.8
The file it talks about doesn't exist on FreeBSD, so there's no point in
installing the manual page. There was already a comment to this effect in
this file, but the entry hadn't been commented out.
rstat.1 and rstat_svc.8 can probably actually be removed.
PR: docs/13767
Submitted by: Seth <seth@freebie.dp.ny.frb.org>
mode. This addresses a well-known race condition that can cause
servers to hang in accept(). The relevant case is when somebody
connects to the server and then immediately kills the connection
by sending a TCP reset. On the server this causes select to report
a ready condition on the socket, after which the accept call blocks
because there is no longer any pending connection to accept.
In -current there is already a work-around for this in the kernel.
It was merged into -stable some time ago, but then David Greenman
reverted it because it seemed to be causing a socket leak in some
cases. (See uipc_socket.c revision 1.51.2.3.) Hence this userland
fix is needed in -stable, and I plan to merge it into that branch
soon because it fixes a potential DoS attack. It may also be needed
in -current if the suspected socket leak turns out to be real. In
any case, after thinking it over I believe the fix belongs in
userland. An application shouldn't assume that a ready return from
select guarantees that the subsequent I/O operation cannot block.
A lot can happen between the select and the accept.
A similar fix should most likely be applied to the Unix domain
socket transport too.
Submitted by: peter
Reviewed by: jdp
It used to loop back up to the accept() call and block there,
shutting out all other transports until a new connection came in.
Now it returns instead after dropping the connection. That will
take it back to the select() loop where all transports can be
serviced. I intend to MFC this within a day or two since it
fixes a DoS vulnerability.
track.
The $Id$ line is normally at the bottom of the main comment block in the
man page, separated from the rest of the manpage by an empty comment,
like so;
.\" $Id$
.\"
If the immediately preceding comment is a @(#) format ID marker than the
the $Id$ will line up underneath it with no intervening blank lines.
Otherwise, an additional blank line is inserted.
Approved by: bde
