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)
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>
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
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
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
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
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
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
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
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.
in /etc/fstab. This isn't a real fix though and I'm still not sure
why it started failing. mount(8) breaks up the nfs args into seperate
repeated '-o option=value' arguments. But, the altflags variable that
we use to track things is incrementally built up each time we see the
next option and shows us the cumulative set of flags, not just the
flag that we are currently looking at. As a result, the strstr hack
for looking up flags in a giant -o opt=val,opt=val, etc string was failing
and causing a segfault. I do not know what changed recently that caused
this to suddenly break, but the code has been rather bogus for some time.
remove all the code which was trying to do so.
This code was nasty in several ways, it was hiding
the kernel bug where the kernel was unable to properly
load a module, and it was quitting if it wasn't able
to load the module. The consequence is that an ABI
breakage of the vfsconf API would have broken *every*
mount utility.
It does not help modern compilers, and some may take some hit from it.
(I also found several functions that listed *every* of its 10 local vars with
"register" -- just how many free registers do people think machines have?)
to avoid the need for rpc.lockd to perform client locks. Using
this option a user can revert back to using local locks for NFS mounts
like we did before we had rpc.lockd.
forever by default. This matches what mount_nfs did before revision
1.40, and it is the generally expected behaviour for NFS mounts.
Document the current defaults near the start of the man page and
mention the options that can be used to change them.
Discussed on: -hackers
to give up after one attempt unless a background mount is requested.
Background mounts would retry 10000 times (at least 7 days) before
giving up.
For some situations such as diskless terminals, an NFS filesystem
may be critical to the boot process, so neither the "try once" nor
background mounts are appropiate. To cater for this situation,
unbreak the -R (retry count) parameter so that it also works in
the non-background case. Interpret a zero retry count as "retry
forever".
The defaults are now "try once" for non-background mounts and "retry
forever" for background mounts; both can be overridden via -R.
Add a description of this behaviour to the manpage.
ensure that we never proceed with the mount() syscall if the server
is replying from the wrong source address. Previously the userland
RPC call to the remote nfsd would succeed, but the kernel uses
connect() so it would not see the replies, resulting in a hung
mount.
NQNFS code is ancient, bug-ridden, and should probably be removed).
The wording here was very confusing; it was easy to get the impression
that NQNFS is an extension to NFSv3 when in fact it just uses some
NFSv3-like extensions on top of NFSv2. As witnessed by the mailing
lists and PRs, some people were reading the description and deciding
that NQNFS was what they wanted to use.
MFC after: 1 week
function; we now handle unknown protocols more gracefully.
- Cache the return from getnetconfigent() so that we don't have to
remember to call freenetconfigent() each time. This fixes a memory
leak that would cause retrying background mount_nfs processes to
slowly increase their memory usage.
number of issues:
- Fix background mounts; these were broken in revision 1.40.
- Don't give up before trying all addresses returned by getaddrinfo().
- Use protocol-independent routines where possible.
- Improve error reporting for RPC errors.
- In non-background mode, give up after trying all protocols once.
- Use daemon(3) instead of rolling our own version.
- Never go ahead with the mount() syscall until we have received
a reply from the remote nfsd; this is especially important with
non-interruptible mounts, as otherwise a mistyped command might
require a reboot to correct.
Reviewed by: alfred, Martin Blapp <mb@imp.ch>
of pingnfsserver(). The pingnfsport() function is now called everytime.
If we don't get RPC_SUCCESS or RPC_PROGVERSMISMATCH back, there's
something wrong with the NFS server and we just exit.
- Fix cfs mount on IPv4-only machines
- Fixed the looping when we did not run background mode.
- Fixed a getnameinfo() call with uninitialized adress.
This is a NetBSD bug I didn't notified :-( Thanks Ian !
- Added some #ifdef NFSKERB
- Removed some unused variables.
- Fixed idention
- Remove unnecessary ":" in openlog ident
Submitted by: Martin Blapp <mb@imp.ch>
Reviewed by: Ian Dowse <iedowse@maths.tcd.ie>
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
rundown script 'reboot' or 'single'. ISO support (which never
worked) has been removed from mount_nfs. mount_nfs and umount
now use mounttab, which allows umntall to work properly. The
rc scripts now call umntall as appropriate.
Submitted by: Martin Blapp <mb@imp.ch>
Made mount more userfriendly (bad slashes are now filtered out)
and we remove in mount_nfs trailing slashes if there are any.
Fixed mount_xxx binarys to resolve with realpath(3)
the mountpoint.
Translate the deprecated nfs-syntax with '@' to ':' .
The ':' syntax has now precedence, but '@' still works.
Notify the user that the '@' syntax should not be used.
PR: 7846
PR: 13692
Submitted by: Martin Blapp <mb@imp.ch>
Reviewed by: phk
a "negative" option. This makes it equivalent to /not/ specifying "-c".
The compile time default is /not/ to have the NFSMNT_NOCONN flag set, so
"-o conn" should never be needed---truly a deprecated option :-).
PR: 6905.
mount. It is possible to have v3 MOUNT but only v2 NFS, for instance for
a custom user-mode server like CFS.
Reviewed by: "Louis A. Mamakos" <louie@TransSys.COM>
