Commit Graph

143 Commits

Author SHA1 Message Date
John Baldwin
0b17c7bea5 Add a timeout on positive name cache entries in the NFS client. That is,
we will only trust a positive name cache entry for a specified amount of
time before falling back to a LOOKUP RPC, even if the ctime for the file
handle matches the cached copy in the name cache entry.  The timeout is
configured via a new 'nametimeo' mount option and defaults to 60 seconds.
It may be set to zero to disable positive name caching entirely.

Reviewed by:	rmacklem
MFC after:	1 week
2012-01-25 20:05:58 +00:00
Jaakko Heinonen
d325001438 Change checkpath() to not exit on error. This is a prerequisite for
fixing the mount(8) "failok" option.

PR:		163668
Reviewed by:	Garrett Cooper, delphij (previous version)
2012-01-16 19:34:21 +00:00
Ulrich Spörlein
4b85a12f71 Spelling fixes for sbin/ 2012-01-07 16:09:33 +00:00
John Baldwin
840fb1c02b Finish making 'wcommitsize' an NFS client mount option.
Reviewed by:	rmacklem
MFC after:	1 week
2011-11-14 18:52:07 +00:00
Ruslan Ermilov
e2f2b37089 Implemented a mount option "nocto" that disables cache coherency
checking at open time.  It may improve performance for read-only
NFS mounts.  Use deliberately.

MFC after:	1 week
Reviewed by:	rmacklem, jhb (earlier version)
2011-05-04 13:27:45 +00:00
Rick Macklem
b8ca07bd23 Fix the Makefile for mount_nfs so that it creates a
link for mount_oldnfs.8 instead of mount_newnfs.8.
2011-05-01 01:34:22 +00:00
Rick Macklem
2513585926 Update man pages related to the change in default NFS client
applied by r221124. I also deleted references to idmapd, since that
daemon no longer exists.
This is a content change.
2011-04-28 00:20:35 +00:00
Rick Macklem
4309e17add This patch changes head so that the default NFS client is now the new
NFS client (which I guess is no longer experimental). The fstype "newnfs"
is now "nfs" and the regular/old NFS client is now fstype "oldnfs".
Although mounts via fstype "nfs" will usually work without userland
changes, an updated mount_nfs(8) binary is needed for kernels built with
"options NFSCL" but not "options NFSCLIENT". Updated mount_nfs(8) and
mount(8) binaries are needed to do mounts for fstype "oldnfs".
The GENERIC kernel configs have been changed to use options
NFSCL and NFSD (the new client and server) instead of NFSCLIENT and NFSSERVER.
For kernels being used on diskless NFS root systems, "options NFSCL"
must be in the kernel config.
Discussed on freebsd-fs@.
2011-04-27 17:51:51 +00:00
Simon L. B. Nielsen
d97326d09b Fix deprecated warning about -L which said -i was deprecated.
MFC after:	3 days
2010-12-26 22:29:44 +00:00
Jaakko Heinonen
baa0988a1e Correct a typo.
PR:		151321
Submitted by:	Simon Walton
MFC after:	3 days
2010-10-27 14:11:11 +00:00
Kevin Lo
d0654c8566 Shut the compiler up; initializes the sotype variable to zero in
nfs_tryproto().

Reviewed by:	rmacklem
2010-09-04 08:42:19 +00:00
Hajimu UMEMOTO
a505d4352f Introduce '[ipaddr]:path' notation.
Since the existing implementation searches ':' backward, a path which
includes ':' could not be mounted.  You can now mount such path by
enclosing an IP address by '[]'.
Though we should change to search ':' forward, it will break
'ipv6addr:path' which is currently working.  So, it still searches ':'
backward, at least for now.

MFC after:	2 weeks
2010-02-04 15:17:49 +00:00
Xin LI
b352972b00 static'ify function prototypes and convert K&R to ANSI.
MFC after:	1 month
2010-02-03 23:59:52 +00:00
Rick Macklem
30607997bf Document the negnametimeo option for mount_nfs as implemented
by r202767. This is a content change.

MFC after:	2 weeks
2010-01-21 21:21:00 +00:00
Jaakko Heinonen
bdb403798c Fix parsing of mount options specified with -o in case an option with
value is preceded by an option without value (for example -o
option1,option2=value). Options must be separated before searching for
'='. Also compare pnextopt explicitly against NULL.

PR:		bin/134069
Approved by:	trasz (mentor)
2009-10-26 14:57:33 +00:00
Rick Macklem
c5a0c16f80 Change the default transport protocol for use by the Mount protocol
from UDP to TCP, so that it is consistent with TCP for NFS, which
became the default at r176198. Without this change, doing an NFS mount
against a server that only supports UDP would result in an unusable
mount point if a transport protocol option wasn't specified for the
mount.

Approved by:	kib (mentor)
MFC after:	3 days
2009-09-17 19:08:15 +00:00
Rick Macklem
ef89cb79cc Delete the descriptions of the gssname and allgssname optionss from
mount_nfs.8 since these options are not implemented in FreeBSD8.
This is content change for the man page.

Approved by:	re (kensmith), kib (mentor)
2009-07-29 14:44:09 +00:00
Doug Rabson
0775314b63 Don't use sys/nfs/rpcv2.h - it is part of the old kernel RPC implementation
and will be removed.
2009-06-24 18:42:21 +00:00
Craig Rodrigues
31438685ec Code for parsing nmount options in kernel was merged
to stable/7 branch in r190315.  So only resort to fallback_mount()
could which passes struct nfs_args to kernel in kernel versions
less than 702100.
2009-06-01 00:40:39 +00:00
Rick Macklem
011981fd9e Add support for the experimental nfs client to mount_nfs. The
experimental client is used when the fstype is "newnfs" or the "nfsv4"
option is specified. It includes the addition of the option:
  gssname - to specify a client side initiator host based principal name
which is specific to NFSv4.
It also includes a change to mount.c, so that it knows about
mount_newnfs, but not mount_nfs4.

Reviewed by:	dfr
Approved by:	kib (mentor)
2009-05-27 19:56:51 +00:00
Robert Watson
86ce6a83d1 Remove the unmaintained University of Michigan NFSv4 client from 8.x
prior to 8.0-RELEASE.  Rick Macklem's new and more feature-rich NFSv234
client and server are replacing it.

Discussed with:	rmacklem
2009-05-22 12:35:12 +00:00
Craig Rodrigues
8259724930 Set NFSMNT_ACDIRMAX flag in fallback_mount() function. 2009-02-06 07:47:53 +00:00
Craig Rodrigues
60341db4b2 Set NFSMNT_ACREGMIN, NFSMNT_ACREGMAX, and NFSMNT_ACDIRMIN flags
in fallback_mount() function.
Add a comment to indicate that the fallback_mount() function
should eventually go away.

Submitted by:	Jaakko Heinonen <jh saunalahti fi>
2009-02-06 07:42:21 +00:00
Craig Rodrigues
e4f9e894d4 Fix parsing of acregmin, acregmax, acdirmin and acdirmax NFS mount options
when passed as strings via nmount().

Submitted by: Jaakko Heinonen <jh saunalahti fi>
2009-01-28 07:46:35 +00:00
Doug Rabson
a9148abd9d Implement support for RPCSEC_GSS authentication to both the NFS client
and server. This replaces the RPC implementation of the NFS client and
server with the newer RPC implementation originally developed
(actually ported from the userland sunrpc code) to support the NFS
Lock Manager.  I have tested this code extensively and I believe it is
stable and that performance is at least equal to the legacy RPC
implementation.

The NFS code currently contains support for both the new RPC
implementation and the older legacy implementation inherited from the
original NFS codebase. The default is to use the new implementation -
add the NFS_LEGACYRPC option to fall back to the old code. When I
merge this support back to RELENG_7, I will probably change this so
that users have to 'opt in' to get the new code.

To use RPCSEC_GSS on either client or server, you must build a kernel
which includes the KGSSAPI option and the crypto device. On the
userland side, you must build at least a new libc, mountd, mount_nfs
and gssd. You must install new versions of /etc/rc.d/gssd and
/etc/rc.d/nfsd and add 'gssd_enable=YES' to /etc/rc.conf.

As long as gssd is running, you should be able to mount an NFS
filesystem from a server that requires RPCSEC_GSS authentication. The
mount itself can happen without any kerberos credentials but all
access to the filesystem will be denied unless the accessing user has
a valid ticket file in the standard place (/tmp/krb5cc_<uid>). There
is currently no support for situations where the ticket file is in a
different place, such as when the user logged in via SSH and has
delegated credentials from that login. This restriction is also
present in Solaris and Linux. In theory, we could improve this in
future, possibly using Brooks Davis' implementation of variant
symlinks.

Supporting RPCSEC_GSS on a server is nearly as simple. You must create
service creds for the server in the form 'nfs/<fqdn>@<REALM>' and
install them in /etc/krb5.keytab. The standard heimdal utility ktutil
makes this fairly easy. After the service creds have been created, you
can add a '-sec=krb5' option to /etc/exports and restart both mountd
and nfsd.

The only other difference an administrator should notice is that nfsd
doesn't fork to create service threads any more. In normal operation,
there will be two nfsd processes, one in userland waiting for TCP
connections and one in the kernel handling requests. The latter
process will create as many kthreads as required - these should be
visible via 'top -H'. The code has some support for varying the number
of service threads according to load but initially at least, nfsd uses
a fixed number of threads according to the value supplied to its '-n'
option.

Sponsored by:	Isilon Systems
MFC after:	1 month
2008-11-03 10:38:00 +00:00
Craig Rodrigues
049307ba00 Use the version of the kernel returned by getosreldate()
to determine whether to call the fallback_mount() backwards
compatibility function or not.

Reviewed by:	dfr
2008-09-19 11:59:10 +00:00
Craig Rodrigues
4b5bc28358 Instead of building up a "struct nfs_args" to pass to the kernel
via nmount(), build up an iovec where each iovec member is an NFS mount
option, and pass the iovec down to the kernel via nmount().  These options
are then parsed in the kernel.
This should make it easier to add new NFS mount options in future.

Many, many thanks to Doug Rabson for taking my initial patches,
and cleaning them up.  In addition, Doug added a fallback_mount()
function so that the newer mount_nfs program will work against older
kernels, to facilitate upgrading/downgrading scenarios.
Doug also re-wrote the mount_nfs.8 man page.

Reviewed by:	dfr
2008-09-13 20:22:46 +00:00
Kris Kennaway
bf005f321e Fix -o mntudp after the conversion to default TCP mounts
Submitted by:	danfe
MFC after:	1 week
2008-07-10 17:53:10 +00:00
Yaroslav Tykhiy
c6446de05d Undo the damage I did in sys/kern/vfs_mount.c #1.274 and
sbin/mount_nfs/mount_nfs.c #1.76.  Let the dragons sleep.

Requested by:	rodrigc, des
PR:		kern/120319 (welcome the bug back)
2008-02-18 20:58:57 +00:00
Yaroslav Tykhiy
bd20049d27 Add a work-around to make it possible again to remount
NFS root r/w.

The real solution would be to bring the whole nmount(2)
framework, including FS drivers and userland tools, into
a consistent state at last; but things should work in the
meantime, too.

Reported by:	kris
2008-02-18 10:24:47 +00:00
Yaroslav Tykhiy
a83655a35f Back out rev. 1.74 because the kernel isn't ready yet
to see NFS specific string options.
2008-02-18 00:23:28 +00:00
Yaroslav Tykhiy
fb2ae60938 Don't forget to prepare string options for nmount(2).
Otherwise things won't work as intended, e.g., it'll
be impossible to upgrade NFS root mount to read-write.

Reported by:	kris
2008-02-18 00:05:50 +00:00
Ceri Davies
3efe0d9d2a Add the -4 option to the synopsis. 2008-02-12 09:24:11 +00:00
Ceri Davies
4a2b331aa6 Bump .Dd for r1.48. 2008-02-12 09:20:27 +00:00
Kris Kennaway
2427fa1998 Switch the default NFS mount mode from UDP to TCP. UDP mounts are a
historical relic, and are no longer appropriate for either LAN or WAN
mounting.  At modern (gigabit and 10 gigabit) LAN speeds packet loss
from socket buffer fill events is common, and sequence numbers wrap
quickly enough that data corruption is possible.  TCP solves both of
these problems without imposing significant overhead.

MFC after:     1 month
2008-02-11 23:23:21 +00:00
Thomas Quinot
3bbd554a99 Add "fg" option as antonym to "bg"; add "hard" option as antonym to "soft".
This is for better compatibility with other environments (Linux, Solaris,
HP-UX, AIX and Tru64 support these options).

PR:		bin/109924
MFC after:	1 week
2007-03-05 14:47:54 +00:00
Craig Rodrigues
0d27250907 Link mount_nfs -> mount_nfs4, and mount_nfs.8 -> mount_nfs4.8.
Suggested by:	rees
2007-01-23 09:14:33 +00:00
Craig Rodrigues
0c269d1f05 Merge mount_nfs4.c and mount_nfs.c into one program.
If argv[0] == "mount_nfs4", then default to mounting NFSv4,
otherwise if argv[0] == "mount_nfs", default to the old mount_nfs behavior.

- Add a -4 option.
- Add the University of Michigan copyright from mount_nfs4.c, for the
  code merged from mount_nfs4.c.

Reviewed by:	rees
2007-01-23 07:17:10 +00:00
Craig Rodrigues
a6b2640236 Pass a string buffer named "errmsg" to nmount().
This will allow the NFS mount code to return a string error message
in addition to returning an error integer value.

Reviewed by:    mohans
MFC after:      1 month
2006-11-29 00:46:30 +00:00
Craig Rodrigues
412ffff0a0 Deduce the "fstype" parameter to pass to nmount() by looking at
the "_nfs" part of argv[0].  This should facilitate unifying mount_nfs
and mount_nfs4 into one binary.

MFC after:	1 month
Reviewed by:	mohans
2006-11-29 00:41:44 +00:00
Craig Rodrigues
852bc770e3 Increase WARNS to 3. 2006-11-21 02:01:33 +00:00
Craig Rodrigues
b535b298b1 Fix last element of nc_protos[] array to appease GCC. 2006-11-21 02:00:48 +00:00
Craig Rodrigues
c5aa1dc845 Convert mount_nfs from old mount(2) API to new nmount(2) API.
Reviewed by:	mohans
2006-11-21 01:53:18 +00:00
Tom Rhodes
d24dde7544 Properly separate sentences by adding a semi-colon.
Hinted by:	bmah
2006-10-07 23:12:19 +00:00
Warner Losh
33924ad466 Minor style(9) and KNF elimination as I prepare to fix a bug. 2006-03-20 21:28:46 +00:00
Tom Rhodes
5646f2e5f3 Kill the BUGS section, and remove a similar line noted under -T. As far
as I know, Sun's NFS support works with TCP just fine.  This is even
hinted at in the PR.

PR:		71782
2005-12-25 10:36:30 +00:00
Xin LI
46b7a14ba4 Use MOPT_END in favor of MOPT_NULL, which better describes the purporse
of the macro.
2005-06-10 09:51:43 +00:00
Xin LI
73ac45052f Add a handy macro to represent null mount option, MOPT_NULL, and make
use of the macro in sbin/mount*'s, by replacing:

	mopts[] = {
	    MOPT_STDOPTS,
	    { NULL }
	}

With:
	mopts[] = {
	    MOPT_STDOPTS,
	    MOPT_NULL
	}

This change will help to reduce the situation that we don't explicitly
initialize "struct mntopt"'s.  It should not contribute to any
functional/logical changes as far as I can tell.
2005-06-01 09:39:36 +00:00
Ruslan Ermilov
8d646af581 Sync program's usage() with manpage's SYNOPSIS. 2005-02-10 09:19:34 +00:00
Ruslan Ermilov
9806e23132 Mechanically kill hard sentence breaks. 2004-07-02 21:45:06 +00:00