so that both parent and child processes ignore this signal.
PR: bin/97768
Submitted by: Gea-Suan Lin <gslin at csie dot nctu dot edu dot tw>
MFC after: 3 days
We already check for write() failures and handle EPIPE.
Failure to handle SIGPIPE was resulting in rpc.lockd terminating.
PR: bin/97768
Reported by: Gea-Suan Lin <gslin at csie dot nctu dot edu dot tw>
MFC after: 1 day
result in abort() beeing called. This is because there is a limit of
the number of groups in the RPC which is 16. When the actual number of
groups is too large it results in xdr_array() returning an error which,
in turn, authunix_create() handles by just calling abort().
Fix this by passing only the first 16 groups to authunix_create().
xt_rtaddr member of SVCXPRT structure. This allows to use IPv6
address stored in "struct sockaddr_storage" in "struct netbuf".
- Output the reason of getnameinfo() error.
Reviewed by: alfred
apply the patch of bin/61718 (which should include/elimatate kern/61122 also).
It seems to fix a few annoying bugs.
PR: bin/61718, kern/61122
Submitted by: bg@sics.seohartman@mail.physik.uni-mainz.de
server, map it to EAGAIN locally rather than EACCES. The NLM spec
indicates the DENIED corresponds to lock contention, not a permission
failure. This fixes O_EXLOCK/O_SHLOCK with O_NONBLOCK, which would
previously give a permission error, which in turn fixes things
like mailq(8) and lockf(1) over NFS.
Approved by: scottl (re)
Reviewed by: truckman, Andrew P Lentvorski, Jr. <bsder@allcaps.org>
Idea from: truckman
has requested the lock in a non-blocking form, instead returning an
immediate failure. This appears to help reduce one of my "locks get
lost" symptoms involving lockf(1), which attempts a non-blocking lock
attempt before actually blocking on the lock. At this point the client
still gets back EACCES, which is an issue we're still working.
Approved by: re (scottl)
Submitted by: Andrew P. Lentvorski, Jr. <bsder@allcaps.org>
from the NFS server, following contention on a lock by this or another
client, immediately notify the waiting process that the lock has been
granted via a wakeup. Without this change, the client rpc.lockd will
not wakeup the waiting process until it next re-polls the lock (sometime
in the next ten seconds), which can lead to marked latency across all
potential lockers, as the lock is held by the client for the duration.
Approved by: re (scottl)
Submitted by: truckman
Reviewed by: Andrew P. Lentvorski, Jr <bsder@allcaps.org>
print out the correct transport it failed on rather than always
spitting out 'udp', also call nc_sperror() to give a more verbose
error message detailing the problem.
rpcgen can't really make those fields const because the remote side might
want to munge them, so we need to pass non-const in. Hackish, but should
work.
Alfred, I took a look at retry_blockingfilelocklist() and the
solution seemed simple enough. Please correct me if I am wrong.
It seems said routine doesn't take into account boundary conditions
when putting back file_lock entries into the blocked lock-list.
Specifically, it fails when the file_lock being put back is the
last element in the list, and when it is the only element in the
list. I've included a patch below.
Basically, it introduces another variable: pfl, which keeps track
of the list item before ifl. That way if nfl is NULL, ifl gets
inserted after pfl. If pfl is also NULL, then it gets inserted
at the head of the list (since it was the only element in the
list).
Submitted by: Mike Makonnen <mike_makonnen@yahoo.com>
Tested by: Thomas Quinot <thomas@cuivre.fr.eu.org>
file is still completely covered by a flock(2) style lock, but we'll tackle
that at a later date.
Submitted by: "Andrew P. Lentvorski" <bsder@allcaps.org>
use LIST_FOREACH,
add prototypes (functions should be made static probably),
change DEBUG=1 to LOCKD_DEBUG,
K&R function instantiation for functions with long args lists,
Move comments about functions from within to above the function,
Simplified some if/else logic and reduced nested blocks.
parens around 'return' argument (return FOO -> return (FOO))
of the rpc.lockd fully compliant with the old file locking semantics.
Andrew will dig into the statd code next and then will attack the split
locking.
This also backs out a lot of the work I've done on making the code
more conformant with non-written style rules, but we'll revisit that
later.
Submitted by: "Andrew P. Lentvorski" <bsder@allcaps.org>
Fix the WARNS 1 warnings except unused variables.
Add prototype for log_netobj().
Don't compare signed/unsigned.
Cast u_int64_t to 'unsigned long long' and print using %llu.
Fix constness of string arrays.
Use a cast to avoid an unused parameter in a signal handler.
alarm(2) can't fail, so don't check for it.
ANSI'ify some functions.
src/sys/fs/fifofs/fifo_vnops.c) to serve locks better, my previous
workaround for lack of decent fifo system wasn't cutting it,
particularly the kernel would send a message down the fifo and
immediately close it, this would lead to delayed unlock requests
being seen by the lockd causing all sorts of badness.
Basically, don't reopen the fifo, just select(2) on it.
make the code not automatically dead but actually use the debug level
in order to determine if output is needed. Fix non-existant from_addr()
by #define'ing it to inet_ntoa().
Remove hardcoded -g from Makefile.
Reported by: "John W. De Boskey" <jwd@bsdwins.com>
Tested by: "John W. De Boskey" <jwd@bsdwins.com>
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
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
This will make a number of things easier in the future, as well as (finally!)
avoiding the Id-smashing problem which has plagued developers for so long.
Boy, I'm glad we're not using sup anymore. This update would have been
insane otherwise.
their path names in the synopsis line (especially since they
referenced the wrong path!). Corrected some other minor problems
with the rpc.lockd man page.
- Use rpcgen to generate the unmodified boilerplate code rather than
having it in the repository.
- Eliminate the conflicting function names by changing them to their
"natural" rpcgen generated names
stub lockd.
This implements just the protocol, but does not interact with the kernel.
It says "Yes!" to all requests. This is useful if you have people using
tools that do locking for no reason (eg: some PC NFS systems running some
Microsoft products) and will happily report they couldn't lock the file
and merrily proceed anyway. Running this will not change the reliability of
sharing files, it'll just keep it out of everybody's face.
