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When the nproc argument is not given the rpc.nfsd
a default number of processes is created. This
patch bumps that default up from 1 to 8.
Signed-off-by: Steve Dickson <steved@redhat.com>
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In the case where -N 4.1 is left off the commandline, the current code
explicitly turns it on or off anyway, depending on configure options.
Instead, just leave 4.1 support alone. This allows a user to add an
"echo +4.1 >/proc/fs/nfsd/versions" to their init scripts, if they want.
Otherwise they will get the kernel's default (currently to leave 4.1
off, as long as 4.1 support is experimental).
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Signed-off-by: Steve Dickson <steved@redhat.com>
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Revert commit b2a3cd59 so that rpc.nfsd can create IPv6 listener
sockets for the kernel.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Steve Dickson <steved@redhat.com>
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There's a bit of a chicken and egg problem when nfsd is run the first
time. On Fedora/RHEL at least, /proc/fs/nfsd is mounted up whenever nfsd
is plugged in via a modprobe.conf "install" directive.
If someone runs rpc.nfsd without plugging in nfsd.ko first,
/proc/fs/nfsd won't be mounted and rpc.nfsd will end up using the legacy
nfsctl interface. After that, nfsd will be plugged in and subsequent
rpc.nfsd invocations will use that instead.
This is a problem as some nfsd command-line options are ignored when the
legacy interface is used. It'll also be a problem for people who want
IPv6 enabled servers. The upshot is that we really don't want to use the
legacy interface unless there is no other option.
To avoid this situation, have rpc.nfsd check to see if the "threads"
file is already present. If it's not, then make an attempt to mount
/proc/fs/nfsd. This is a "best-effort" sort of thing, however so we
just ignore the return code from the mount attempt and fall back to
using nfsctl() if it fails.
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve Dickson <steved@redhat.com>
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(mountd and statd in particular). That could be a problem in the future
if someone were to boot a kernel that supports IPv6 serving with an
older nfs-utils. For now, hardcode the IPv6 switch into the off position
until the other daemons are functional.
Signed-off-by: Steve Dickson <steved@redhat.com>
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Add support for handing off IPv6 sockets to the kernel for nfsd. One of
the main goals here is to not change the behavior of options and not to
add any new ones, so this patch attempts to do that.
We also don't want to break anything in the event that someone has an
rpc.nfsd program built with IPv6 capability, but the knfsd doesn't
support IPv6. Ditto for the cases where IPv6 is either not compiled in
or is compiled in and blacklisted.
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve Dickson <steved@redhat.com>
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Convert nfssvc_setfds to use getaddrinfo. Change the args that it takes
and fix up nfssvc function to pass in the proper args. The things that
nfssvc has to do to call the new nfssvc_setfds is a little cumbersome
for now, but that will eventually be cleaned up in a later patch.
nfs-utils: break up the nfssvc interface
Currently, the only public interface to the routines in nfssvc.c is
nfssvc(). This means that we do an awful lot of work after closing
stderr that could be done while it's still available.
Add prototypes to the header so that more functions in nfssvc.c can be
called individually, and change the nfsd program to call those routines
individually.
Signed-off-by: Steve Dickson <steved@redhat.com>
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...and add --debug and --syslog options.
With the switch to xlog(), it becomes trivial to add debug messages, so
add an option to turn them on when requested.
Also, rpc.nfsd isn't a proper daemon per-se, so it makes more sense to
log errors to stderr where possible. Usually init scripts take care of
redirecting stderr output to syslog anyway.
For those that don't, add a --syslog option that forces all output to go
to syslog instead. Note that even with this option, errors encountered
during option processing will still go to stderr.
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve Dickson <steved@redhat.com>
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Minor formatting nits.
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve Dickson <steved@redhat.com>
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rpc.nfsd is the only user of nfssvc.c, so we might as well move it
out of libnfs.a.
Also, don't link in libexport.a and libmisc.a, they aren't needed.
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve Dickson <steved@redhat.com>
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Enable support for the maximum minor version (4.1 at the moment)
by default. It can be disabled using the -N command line
option.
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
Signed-off-by: Steve Dickson <steved@redhat.com>
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<version>.<minorversion> to disable support
for <minorversion>. Only 4.1 is currently supported.
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
Signed-off-by: Steve Dickson <steved@redhat.com>
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minorvers4 can be used to either enable or disable nfsv4.x.
If minorvers4 is a positive integer n, in the allowed range (only
minorversion 1 is supported for now), the string "+4.n" is appended
to the versions string written onto /proc/fs/nfsd/versions.
Correspondingly, if minorver4 is a negative integer -n, the string
"-4.n" is written.
With the default value, minorvers4==0, the minor version
setting is not changed.
Note that unlike the protocol versions 2, 3, or 4. The minor version
setting controls the *maximum* minor version nfsd supports. Particular
minor version cannot be controlled on their own. With only minor
version 1 supported at the moment the difference doesn't matter,
but for future minor versions greater than 1, enabling minor
version X will enable support for all minor versions 1 through X.
Disabling minor version X will disable support for minor
versions X and up, enabling 1 through X-1.
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
Signed-off-by: Steve Dickson <steved@redhat.com>
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as currently printed c is the version number, not a string char,
therefore is should be printed as %d not %c. That said, just print
optarg as %s since it might be non-numeric.
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
Signed-off-by: Steve Dickson <steved@redhat.com>
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during one of the sanity checks in rpc.nfsd.
Signed-off-by: Steve Dickson <steved@redhat.com>
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-T - will suppressing listening for TCP connection.
-U - will suppress UDP
-H host - will only listen on that local address
-p port - will listen on that port.
This requires kernel patches which will hopefully be in 2.6.19 and possibly some
earlier test and vendor kernels.
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e.g. -N 2
means that NFSv2 won't be supported, just v3 and v4 (if the kernel
supports them).
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* configure.in: Check svctcp_socket and svcudp_socket.
* configure: Regenerated.
* support/include/config.h.in (HAVE_SVCTCP_SOCKET): New.
(HAVE_SVCUDP_SOCKET): New.
* support/include/nfslib.h (svctcp_socket): New.
(svcudp_socket): New.
* support/nfs/Makefile (OBJS): Add svc_socket.o.
* support/nfs/svc_socket.c: New.
* support/nfs/rpcmisc.c (rpc_init): Call svctcp_socket and
svcudp_socket if port is unspecified.
* utils/nfsd/nfsd.c (main): Call getservbyname for port.
* utils/rquotad/rquota_svc.c: Include <nfslib.h>.
(killer): New. Signal handler to unregister.
(main): Use killer. Call svcudp_socket to get the default
socket.
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* utils/showmount/showmount.c (main): Don't assume that strings
starting with digits are IP addresses.
* utils/nfsd/nfsd.c (main): Close all fds and reopen 0,1,2 on
/dev/null before nfssvc(). Use syslog to report nfssvc errors.
* support/misc/tcpwrapper.c, utils/mountd/mountd.man,
utils/rquotad/rquotad.man, utils/statd/statd.man: Fix comments and
man pages: We check host names *and* addresses with tcpwrappers.
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* utils/lockd/lockd.c (main): chdir to NFS_STATEDIR.
* utils/mountd/mountd.c (main): Likewise.
* utils/nfsd/nfsd.c (main): Likewise.
* utils/rquotad/rquota_svc.c (main): Likewise.
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