| Commit message (Collapse) | Author | Age | Files | Lines |
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stats
The NFSv4 client procs/ops in "struct rpc_procinfo nfs4_procedures" is
used to generate the NFS client stats interface:
------------------------------------------------------------
net 0 0 0 0
rpc 15 0 0
proc2 18 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
proc3 22 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 2 1 0
proc4 42 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0
0 0 0
0 0 0 0 0 0 0
------------------------------------------------------------
Note, for proc4, the number 42. That is the number of stats that follow
on the same line. Currently nfsstat's has_stats() relies on this number
to be equal to CLTPROC4_SZ. Unfortunately this is not the case. I have
changed has_stats() not to rely on these two values being equal. This
should also allow nfsstat to work with different kernel versions that
expose a different number of NFS client ops.
* Fix has_stats()
* Stop print_clnt_list() printing server stats!
* Describe the option -3 and -4 completely in the nfsstat manpage.
Signed-off-by: Harshula Jayasuriya <harshula@redhat.com>
Signed-off-by: Steve Dickson <steved@redhat.com>
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Only enable the compilation of nfsidmap when libnfsidmap support it.
Signed-off-by: Steve Dickson <steved@redhat.com>
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This patch adds the nfsidmap program to nfs-utils. This program is
called by the nfs idmapper through request-keys to map between
uid / user name and gid / group name.
Signed-off-by: Bryan Schumaker <bjschuma@netapp.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Signed-off-by: Steve Dickson <steved@redhat.com>
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stropts.c:740:6: warning: 'ret' may be used uninitialized in this function
stropts.c:653:6: warning: 'ret' may be used uninitialized in this function
Signed-off-by: Steve Dickson <steved@redhat.com>
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It appears that, for a long while, NFS "remount" mounts have
completely wiped the existing mount options in /etc/mtab for a given
mount point. This is a problem for umount.nfs, since it reads its
options out of /etc/mtab to find out how to do the unmount.
The mount(8) command provides the NFS mount subcommand with the mount
options to perform the remount. There are four cases to consider:
1. Both the device and mount directory are specified on the
command line, and the target mount point is in /etc/fstab
2. Only one of the device and mount directory is specified on
the command line, and the target mount point is in
/etc/fstab
3. Both the device and mount directory are specified on the
command line, and the target mount point is not in /etc/fstab
4. Only one of the device and mount directory is specified on
the command line, and the target mount point is not in
/etc/fstab
Currently only case 4 works correctly. In that case, mount(8)
provides the correct set of mount options to the mount.nfs
subcommand and it can update /etc/mtab correctly.
Cases 1 and 3 replace all mount options in /etc/mtab with the options
provided on the command line during a remount. Case 2 replaces the
mount options in /etc/mtab with a mix of options from /etc/fstab and
/etc/mtab.
Cases 1 and 3 are historical behavior. Basically this is a formal
interface to allow administrators to replace the mount options in
/etc/mtab completely, instead of merging in new ones. The present
patch documents that behavior in nfs(5), and provides best practice
for remounting NFS mount points.
There are near-term plans to address case 2 by fixing mount(8)
(provided by utils-linux-ng in most distributions).
This is a partial fix for:
https://bugzilla.linux-nfs.org/show_bug.cgi?id=188
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Steve Dickson <steved@redhat.com>
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Clean up grammar and style issues introduced by recent updates. Also,
I'm not certain inappropriate options are always ignored.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Steve Dickson <steved@redhat.com>
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Clean up.
No need to pass constant zeros to add_mtab() from its only call site.
Ensure that initialization of a struct mntent is consistent in both
places that it is done.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Steve Dickson <steved@redhat.com>
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This appears to have been left behind by last year's adjustments to
how the extra_opts string is constructed.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Steve Dickson <steved@redhat.com>
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stropts.c: In function nfs_parse_retry_option:
stropts.c:131: warning: conversion to unsigned int from long int may
alter its value
Make it more clear what the second argument is for, and flag the
switch fallthrough case.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Steve Dickson <steved@redhat.com>
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It was reported that, if only "lo" is up,
mount.nfs 127.0.0.1:/export /mount
fails with "Name or service not known".
"man 3 getaddrinfo" says this:
If hints.ai_flags includes the AI_ADDRCONFIG flag, then IPv4
addresses are returned in the list pointed to by res only if the
local system has at least one IPv4 address configured, and IPv6
addresses are only returned if the local system has at least
one IPv6 address configured.
The man page oversimplifies here. A review of glibc shows that
getaddrinfo(3) explicitly ignores loopback addresses when deciding
whether an IPv4 or IPv6 address is configured.
This behavior around loopback is a problem not just for mount.nfs,
but also for RPC daemons that have to start up before a system's
networking is fully configured and started. Given the history of
other problems with AI_ADDRCONFIG and the unpredictable behavior it
introduces, let's just remove it everywhere in nfs-utils.
This fix addresses:
https://bugzilla.linux-nfs.org/show_bug.cgi?id=191
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Steve Dickson <steved@redhat.com>
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Updated the rpc.mountd man page to no longer reference
v3 as the "newer" version and also mentioned v4 as
a supported version.
Signed-off-by: Steve Dickson <steved@redhat.com>
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Signed-off-by: Steve Dickson <steved@redhat.com>
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The man page's paragraphs about "refer=" and "replicas="
each appear twice.
Signed-off-by: Steve Dickson <steved@redhat.com>
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Clear stale MNT registrations before mountd tries to create fresh
listeners, to ensure that mountd starts. This is also what statd does.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Steve Dickson <steved@redhat.com>
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See the MS_NOMTAB macro in utils-linux-ng/mount/mount.c.
Note that mount(8) has MS_USERS and MS_USER in the "nomtab" category
as well, but mount.nfs needs to record those values so that unmounting
a user-mounted NFS file system can work.
While we're here, fix some white space damage in fix_opts_string().
This is a partial fix for:
https://bugzilla.linux-nfs.org/show_bug.cgi?id=188
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Steve Dickson <steved@redhat.com>
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Neil Brown reports that umount.nfs is still confused by "-t nfs -o
vers=4" mounts.
/etc/mtab can be confused. /proc/mounts is authoritative on the
fstype of a mount. Have umount.nfs consult it to determine which
mechanism to use for unmounting. The code to read /proc/mounts was
lifted from the nfsstat command.
The code introduced by this patch may look like belt-n-suspenders, but
we have two use cases to consider:
1. Old kernels don't support the "vers=4" mount option, so
umount.nfs must look for the "nfs4" fstype
2. Upcoming kernels may eliminate support the "nfs4" fstype, so
umount.nfs must look for the "vers=4" mount option
Thus this logic checks for "nfs4" first then looks for the NFS version
setting.
Note that we could handle unmounting entirely in the kernel, but that
won't help older kernels that have this issue.
See:
https://bugzilla.linux-nfs.org/show_bug.cgi?id=189
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Steve Dickson <steved@redhat.com>
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Clean up. Our client does not support the MNT protocol on RDMA.
nfs_mount_protocol() isn't invoked for RDMA mounts (they are shunted
off before nfs_options2pmap() is invoked). But in case it ever is,
it should return the expected response.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Steve Dickson <steved@redhat.com>
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Clean up.
network.c: In function get_socket:
network.c:431: warning: dereferencing type-punned pointer might break
strict-aliasing rules
network.c: In function probe_bothports:
network.c:759: warning: dereferencing type-punned pointer might break
strict-aliasing rules
network.c:762: warning: dereferencing type-punned pointer might break
strict-aliasing rules
network.c: In function nfs_probe_statd:
network.c:775: warning: dereferencing type-punned pointer might break
strict-aliasing rules
network.c: In function nfs_call_umount:
network.c:904: warning: dereferencing type-punned pointer might break
strict-aliasing rules
network.c: In function nfs_ca_sockname:
network.c:1106: warning: dereferencing type-punned pointer might break
strict-aliasing rules
network.c:1112: warning: dereferencing type-punned pointer might break
strict-aliasing rules
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Steve Dickson <steved@redhat.com>
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parse_opt.c: In function po_rightmost:
parse_opt.c:517: warning: conversion to int from unsigned int may
change the sign of the result
"i" contains the function's result value, so it should be defined as
the same type as the function's return type.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Steve Dickson <steved@redhat.com>
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Clean up.
nfsumount.c:374: warning: ISO C forbids omitting the middle term of
a ?: expression
This is also probably harmless, but let's make the code unambiguous.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Steve Dickson <steved@redhat.com>
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Clean up.
nfsumount.c:265: warning: no previous prototype for nfsumount
It's also a good idea if the compiler can ensure that the prototype
in nfsmount.h matches the actual function defined in nfsumount.c.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Steve Dickson <steved@redhat.com>
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Clean up.
mount.c: In function parse_opt:
mount.c:354: warning: conversion to size_t from int may change the
sign of the result
mount.c:354: warning: conversion to int from size_t may change the
sign of the result
mount.c:359: warning: conversion to size_t from int may change the
sign of the result
mount.c:359: warning: conversion to int from size_t may change the
sign of the result
mount.c: In function parse_opts:
mount.c:374: warning: conversion to int from size_t may change the
sign of the result
mount.c:377: warning: conversion to size_t from int may change the
sign of the result
Character string lengths are usually size_t anyway. We can easily
avoid the implicit type cast here.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Steve Dickson <steved@redhat.com>
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Clean up.
mount.c: At top level:
mount.c:324: warning: no previous prototype for ?mount_usage?
mount_usage() has no callers outside of utils/mount/mount.c and no
prototype is provided in a header file. Make it static.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Steve Dickson <steved@redhat.com>
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Clean up.
In file included from mount.c:50:
version.h: In function linux_version_code:
version.h:48: warning: conversion to unsigned int from int may
change the sign of the result
version.h:48: warning: conversion to unsigned int from int may
change the sign of the result
version.h:48: warning: conversion to unsigned int from int may
change the sign of the result
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Steve Dickson <steved@redhat.com>
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Clean up.
In file included from mount.c:41:
mount_config.h:35: warning: no previous prototype for mount_config_opts
Functions defined in include files are usually declared as "static
inline," eliminating the need for a forward declaration.
While I was there, I also fixed the macro that prevents including
mount_config.h multiple times, and fixed some white space damage.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Steve Dickson <steved@redhat.com>
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Clean up.
fstab.c: In function ?lock_mtab?:
fstab.c:385: warning: declaration of ?errsv? shadows a previous local
fstab.c:367: warning: shadowed declaration is here
fstab.c:407: warning: declaration of ?errsv? shadows a previous local
fstab.c:367: warning: shadowed declaration is here
fstab.c:417: warning: declaration of ?tries? shadows a previous local
fstab.c:325: warning: shadowed declaration is here
fstab.c:422: warning: declaration of ?errsv? shadows a previous local
fstab.c:367: warning: shadowed declaration is here
These are probably harmless. Reusing a variable name, however, is a
little confusing to follow when reading the code.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Steve Dickson <steved@redhat.com>
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Chuck pointed out there was a grammar typo in addition to the spelling
typo. Here is a revised version of the patch.
Signed-off-by: Jim Rees <rees@umich.edu>
Signed-off-by: Steve Dickson <steved@redhat.com>
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There are several source files and headers present in the ./utils/idmapd
directory which are also usable in a doimapd daemon. Because of this we
move that support into the support directory such that it can be shared by
both daemons.
Signed-off-by: Jim Rees <rees@umich.edu>
Signed-off-by: Steve Dickson <steved@redhat.com>
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Document the new option in the nfs(5) man page.
Signed-off-by: Suresh Jayaraman <sjayaraman@suse.de>
Signed-off-by: Steve Dickson <steved@redhat.com>
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Signed-off-by: Eberhard Kuemmerle <E.Kuemmerle@fz-juelich.de>
Signed-off-by: Steve Dickson <steved@redhat.com>
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Allow the principal that is used to get the machines creds definable
on the command like with the new '-p <principal>'. This is useful
in cluster environments.
Signed-off-by: Eberhard Kuemmerle <E.Kuemmerle@fz-juelich.de>
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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Document IPv6 support in rpc.mountd and exportfs, and clarify existing
language in the man page.
Clean up: Use bold consistently for program names, and italics
consistently for file names. Use "rpc.mountd" consistently as the
name of the mountd daemon.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Steve Dickson <steved@redhat.com>
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Clean up: The MNT protocol has its own enum type defining error
status values. While the values can be the same as the NFSERR enum
type on some systems, it's not guaranteed to be true everywhere.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Steve Dickson <steved@redhat.com>
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Clean up: rpc.mountd is no longer known as kmountd. Use the program's
basename rather than the full pathname for the usage message. Display
a version message at start up similar to statd's.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Steve Dickson <steved@redhat.com>
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Fix a long standing bug: when my_svc_run() returns, mountd should
unregister itself with the local rpcbind so that it can subsequently
start cleanly.
Log a more helpful error message in this case.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Steve Dickson <steved@redhat.com>
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If TI-RPC is available, use it to create mountd's svc listener. If
not, use the old function, rpc_init(), to create mountd's listener.
IPv6 can be supported if TI-RPC is available. In this case,
/etc/netconfig is searched to determine which transports to advertise.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Steve Dickson <steved@redhat.com>
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Ensure users and programmers specify NFS version numbers correctly.
This also makes the next patch more clean.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Steve Dickson <steved@redhat.com>
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Minor clean up.
Most modern Linux distributions set UTF-8 locales. Standardize the
character encoding of source files on UTF-8, to squelch vim com-
plaints.
I probably missed a few spots.
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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Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Steve Dickson <steved@redhat.com>
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Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Steve Dickson <steved@redhat.com>
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Clean up: Squelch compiler warnings and document public parts of
cache API.
cache.c: At top level:
cache.c:67: warning: no previous prototype for auth_unix_ip
cache.c:123: warning: no previous prototype for auth_unix_gid
cache.c:217: warning: no previous prototype for get_uuid
cache.c:247: warning: no previous prototype for uuid_by_path
cache.c:326: warning: no previous prototype for nfsd_fh
cache.c:745: warning: no previous prototype for nfsd_export
cache.c:820: warning: no previous prototype for cache_open
cache.c:832: warning: no previous prototype for cache_set_fd
cache.c:841: warning: no previous prototype for
cache_process_req
cache.c:921: warning: no previous prototype for cache_export
cache.c:953: warning: no previous prototype for
cache_get_filehandle
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Steve Dickson <steved@redhat.com>
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To gain IPv6 support in matchhostname(), simply replace the socket
address comparison helpers with the generic versions that can handle
IPv4 and IPv6.
host_addrinfo() (called by matchhostname()) returns IPv6 addresses
only if IPv6 support is enabled.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Steve Dickson <steved@redhat.com>
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Replace inet_aton(3) and gethostbyaddr(3) calls in mountlist_list()
with calls to the new host_foo() DNS helpers.
The new functions will support IPv6 without additional changes, once
IPv6 is enabled in the generic hostname helpers.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Steve Dickson <steved@redhat.com>
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I'm about to replace inet_aton(3)/gethostbyaddr(3) with
host_pton()/host_canonname() in mountlist_list().
Since host_canonname() returns a string allocated with strdup(3)
instead of xstrdup(), mountlist_list() must now deal with memory
exhaustion properly.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Steve Dickson <steved@redhat.com>
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I'm about to add a second bit of logic that needs to free all
mountlist records, so introduce a helper for freeing them.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Steve Dickson <steved@redhat.com>
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Replace IPv4-specific code in the mountlist_del_all() path with code
that is address family agnostic.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Steve Dickson <steved@redhat.com>
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Replace IPv4-specific code with use of our generic hostname helpers
in the routines that handle incoming MNT RPC requests.
These functions will support IPv6 without additional changes, once
IPv6 is enabled in the generic hostname helpers.
As part of this update, I've modified all of mountd's _svc routines
to use a debug message format that is consistent with statd. It may
be overkill for some of these; if so we can pull them out later.
Signed-off-by: Steve Dickson <steved@redhat.com>
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Make the entire auth_authenticate() code path address-family agnostic.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Steve Dickson <steved@redhat.com>
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