openafs.git
8 years agoopr: fix generated target
Derrick Brashear [Mon, 9 Jan 2012 02:02:04 +0000]
opr: fix generated target

we need opr for comerr, but we don't want it after. build,
then clean up.

Change-Id: I621f36bc5f6db85720b73b33578975d0dd126a18
Reviewed-on: http://gerrit.openafs.org/6525
Reviewed-by: Derrick Brashear <shadow@dementix.org>
Tested-by: Derrick Brashear <shadow@dementix.org>

8 years agolibuafs: only rebuild h directory when needed
Marc Dionne [Fri, 6 Jan 2012 22:22:35 +0000]
libuafs: only rebuild h directory when needed

A few changes to allow a "make all ; sudo make install ; make all..."
workflow to work without manually removing files in between.

Make the rebuilding of the h directory dependent on the source
files scanned to build it.  This prevents it from being rebuilt
for every "make install".

While we're here, use -f when removing linktest for the clean target.
This allows "make clean" to remove it without prompting when the user
doesn't have write access to the file, as is the case when make install
rebuilds it as root.

Change-Id: I45b34ad41560ef8c905e6be4201fa438a3cc7bc3
Reviewed-on: http://gerrit.openafs.org/6519
Reviewed-by: Derrick Brashear <shadow@dementix.org>
Tested-by: Derrick Brashear <shadow@dementix.org>

8 years agoopr: add buildtools target
Marc Dionne [Sat, 7 Jan 2012 20:40:42 +0000]
opr: add buildtools target

opr needs a buildtools target for "make generated". Make it install
the headers, which are needed by the other generated targets.

Change-Id: I34faa81fa84407c5e6e1460dc765d0c2ce1ef3e8
Reviewed-on: http://gerrit.openafs.org/6523
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Derrick Brashear <shadow@dementix.org>

8 years agoMake libjafs buildable again
Andrew Deason [Sun, 8 Jan 2012 16:31:39 +0000]
Make libjafs buildable again

libjafs is surprisingly close to being buildable. Fix a few misc
things which have bitrotted over the years so it is possible to
actually build:

 - Add -I$SRC/config to the cflags, so we can include afsconfig.h

 - Remove references to the nonexistant rxkstats.o

 - Do not link with UAFS' AFS_component_version_number.o, since this
   gives us duplicate version number symbols

 - Include afs_vosAdmin.h in Group.c, to satisfy some missing symbols

Change-Id: Ie8da88872288073d080a58ed7fe8c8b52052488e
Reviewed-on: http://gerrit.openafs.org/6524
Reviewed-by: Steven Jenkins <steven@synaptian.com>
Tested-by: Steven Jenkins <steven@synaptian.com>
Reviewed-by: Derrick Brashear <shadow@dementix.org>

8 years agoafs: discard cached state when we are unsure of validity
Derrick Brashear [Wed, 4 Jan 2012 20:04:41 +0000]
afs: discard cached state when we are unsure of validity

in the event we got a network error, we don't know if the server
completed (or will complete) our operation. we can assume nothing.
a more complicated version of this could attempt to verify that the
state is what we expect it to be, but in extended callbacks universe
this is potentially easier to solve anyway. for now, return the
error to the caller, and mark the vcache unstat'd.

Change-Id: Iafb67f24b89d78b8236660d047da12fce1dd6061
Reviewed-on: http://gerrit.openafs.org/6510
Reviewed-by: Derrick Brashear <shadow@dementix.org>
Tested-by: Derrick Brashear <shadow@dementix.org>

8 years agoafs: put back conn if not using in checkserver loop
Derrick Brashear [Fri, 6 Jan 2012 11:33:22 +0000]
afs: put back conn if not using in checkserver loop

we get a conn, check it for eligibility, and if not,
just abandon it. "oops"

Change-Id: Ie3841c19b05a87fb225c3e8124cd485cba3c3648
Reviewed-on: http://gerrit.openafs.org/6516
Reviewed-by: Derrick Brashear <shadow@dementix.org>
Reviewed-by: Jeffrey Altman <jaltman@secure-endpoints.com>
Tested-by: Derrick Brashear <shadow@dementix.org>

8 years agorx: add and export a public keepalive toggle
Derrick Brashear [Fri, 6 Jan 2012 11:53:46 +0000]
rx: add and export a public keepalive toggle

make enabling and disabling keepalives a public function.
export the function

Change-Id: Ia553d91488511edc0b483d95326f14ac0e315332
Reviewed-on: http://gerrit.openafs.org/6517
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Jeffrey Altman <jaltman@secure-endpoints.com>
Reviewed-by: Derrick Brashear <shadow@dementix.org>

8 years agoMake src/opr objdir safe
Chaskiel Grundman [Thu, 29 Dec 2011 18:06:31 +0000]
Make src/opr objdir safe

Update the Makefile for src/opr to use $? to reference headers, so objdir
builds work correctly

Change-Id: I3d8e0d885715a1d1bc1578f4e8ce69fe4239bb56
Reviewed-on: http://gerrit.openafs.org/6444
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Derrick Brashear <shadow@dementix.org>
Reviewed-by: Jeffrey Altman <jaltman@secure-endpoints.com>

8 years agoafs: increase idledead time
Derrick Brashear [Tue, 3 Jan 2012 20:57:14 +0000]
afs: increase idledead time

it's actually important this be more than the rx call dead time
so timing out server callbacks to clients don't result in us idle deading
a call to the server when callbacks need to be broken

FIXES 130327

Change-Id: Ibe2468edb61f307da9174d2c51cb0ea61c118c56
Reviewed-on: http://gerrit.openafs.org/6497
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Derrick Brashear <shadow@dementix.org>

8 years agoukernel: enable nat ping again
Derrick Brashear [Wed, 4 Jan 2012 18:21:43 +0000]
ukernel: enable nat ping again

if we're not root, no nat ping at all. fix that.

Change-Id: I7ea4db77b30ba639921b11c4ccad35a2e14133b4
Reviewed-on: http://gerrit.openafs.org/6509
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Derrick Brashear <shadow@dementix.org>

8 years agoafs: Negate codes using a clear, standard method
Simon Wilkinson [Wed, 4 Jan 2012 21:44:30 +0000]
afs: Negate codes using a clear, standard method

The bulk of our code uses 'code = -code' to negate an error code.
Use this, rather than 'code *= -1', as the latter form makes my
head hurt.

Change-Id: I578fbd7c123c37d89ceb1a6373409feb8b619d86
Reviewed-on: http://gerrit.openafs.org/6511
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Derrick Brashear <shadow@dementix.org>

8 years agoUse offsetof() in set_header_word to get field offset
Marc Dionne [Thu, 5 Jan 2012 00:27:18 +0000]
Use offsetof() in set_header_word to get field offset

Use offsetof() to replace a few instances where the same logic is
open coded in set_header_word and inc_header_word macros.  In cases
where the field name involves a variable as an index to an array,
newer gcc gives a sequence point warning.

Change-Id: I43e3d6ef6a63b51003496a1beb72c445a9109615
Reviewed-on: http://gerrit.openafs.org/6513
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Derrick Brashear <shadow@dementix.org>

8 years agovol: initialize readmeinode
Marc Dionne [Wed, 4 Jan 2012 23:49:32 +0000]
vol: initialize readmeinode

Newer gcc complains about readmeinode being potentially used
uninitialized.  Doesn't look possible in the code, but initialize
it to quiet the warning.

Change-Id: I7172475a64a3bfb90a76c0266d7812d5d42a2c4c
Reviewed-on: http://gerrit.openafs.org/6512
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Derrick Brashear <shadow@dementix.org>

8 years agoUnix CM: reset blacklist on hard-mount retry
Michael Meffie [Wed, 14 Dec 2011 17:52:51 +0000]
Unix CM: reset blacklist on hard-mount retry

Reset black-listed servers on a request when retrying due to a
hard-mount retry. When hard-mounts are in effect, a request may
retry indefinitely. If all the servers have been black-listed
due to a transient error, the request may never complete.

Change-Id: I2510f729cbbb21836b139c94e25867118a6ad873
Reviewed-on: http://gerrit.openafs.org/6330
Reviewed-by: Andrew Deason <adeason@sinenomine.net>
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Derrick Brashear <shadow@dementix.org>

8 years agoDAFS: Atomically re-hash vnode in VGetFreeVnode_r
Andrew Deason [Fri, 18 Nov 2011 16:25:08 +0000]
DAFS: Atomically re-hash vnode in VGetFreeVnode_r

VGetFreeVnode_r pulls a vnode off of the vnode LRU, and removes the
vnode from the vnode hash table. In DAFS, we may drop the volume glock
immediately afterwards in order to close the ihandle for the old vnode
structure.

While we have the glock dropped, another thread may try to
VLookupVnode for the new vnode we are creating, find that it is not
hashed, and call VGetFreeVnode_r itself. This can result in two
threads having two separate copies of the same vnode, which bypasses
any mutual exclusion ensured by per-vnode locks, since they will lock
their own version of the vnode. This can result in a variety of
different problems where two threads try to write to the same vnode at
the same time. One example is calling CopyOnWrite on the same file in
parallel, which can cause link undercounts, writes to the wrong vnode
tag, and other CoW-related errors.

To prevent all this, make VGetFreeVnode_r atomically remove the old
vnode structure from the relevant hashes, and add it to the new hashes
before dropping the glock. This ensures that any other thread trying
to load the same vnode will see the new vnode in the hash table,
though it will not yet be valid until the vnode is loaded.

Note that this only solves this race for DAFS. For non-DAFS, the vol
glock is held over the ihandle close, so this race does not exist.
The comments around the callers of VGetFreeVnode_r indicate that
similar extant races exist here for non-DAFS, but they are unsolvable
without significant DAFS-like changes to the vnode package.

Change-Id: I84c5d1bdd29f9e7140e905388b4b65629932c951
Reviewed-on: http://gerrit.openafs.org/6385
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Derrick Brashear <shadow@dementix.org>

8 years agoafs: Grab a reference to setp in afs_icl_Event4
Andrew Deason [Tue, 27 Dec 2011 02:22:08 +0000]
afs: Grab a reference to setp in afs_icl_Event4

We can drop GLOCK in several places in afs_icl_Event4 and the
afs_icl_AppendRecord callee. To ensure that the given afs_icl_set does
not get freed while we have GLOCK dropped, grab a reference to the
set.

Thanks to Ryan C. Underwood for reporting an issue triggered by this.

Change-Id: Ifeda229b444abd75b0f22c7acf18a7553d833964
Reviewed-on: http://gerrit.openafs.org/6431
Reviewed-by: Derrick Brashear <shadow@dementix.org>
Tested-by: BuildBot <buildbot@rampaginggeek.com>

8 years agolinux: fsync on a directory should return 0, not EINVAL
Geoffrey Thomas [Sun, 1 Jan 2012 00:51:29 +0000]
linux: fsync on a directory should return 0, not EINVAL

Directory writes are synchronous, so this is fine. There's a
mostly-convenient function in fs/libfs.c that returns 0 that we can use
to do what we want ("mostly" because it was renamed in 2.6.35).

FIXES 130425

Change-Id: I9a2af60ed3152be036f0145c94152d8cff2e1242
Reviewed-on: http://gerrit.openafs.org/6491
Reviewed-by: Simon Wilkinson <sxw@inf.ed.ac.uk>
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Derrick Brashear <shadow@dementix.org>

8 years agorpm: Don't attempt to restart on upgrade when using systemd
Geoffrey Thomas [Sun, 11 Dec 2011 10:06:24 +0000]
rpm: Don't attempt to restart on upgrade when using systemd

systemd is actually rather capable of leaving the OpenAFS client in an
incredibly broken state, thanks to its willingness to track services and
kill their processes. We should not attempt to restart the client on
upgrade, whether a normal upgrade or a migration from SysV initscripts.
In the former case, it's fine (and correct) for the old AFS to keep
running; in the latter case, the unit file is capable of correctly
shutting down an initscript-launched client. The same is true for the
OpenAFS server.

This brings the packaging in line with the SysV initscript code in the
specfile, which does not attempt to restart the service, as well as with
e.g. Debian's packaging, which uses --no-restart-on-upgrade.

While we're here, clean up a redundant BuildRequires on systemd-units.

Change-Id: I3b1771a7246f04be0e82765976664c50e0adae47
Reviewed-on: http://gerrit.openafs.org/6247
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Derrick Brashear <shadow@dementix.org>

8 years agoWindows: Support correct status codes from service
Peter Scott [Fri, 30 Dec 2011 00:23:32 +0000]
Windows: Support correct status codes from service

When performing object verification, check for status failures corresponding
to parent object issues which require a validation of the parent

Change-Id: I4a73b55961eda62079c933f9e85888ea24b39f1f
Reviewed-on: http://gerrit.openafs.org/6447
Reviewed-by: Jeffrey Altman <jaltman@secure-endpoints.com>
Tested-by: Jeffrey Altman <jaltman@secure-endpoints.com>

8 years agoWindows: Handle invalid node types
Peter Scott [Fri, 30 Dec 2011 00:30:45 +0000]
Windows: Handle invalid node types

In the case where the direntry data is invalid, construct an Fcb
of type INVALID so that the direntry can be displayed and the objected
deleted even if it cannot be evaluated.

Change-Id: I37da154b7429929fe833874c7cd048a3a804a96f
Reviewed-on: http://gerrit.openafs.org/6445
Reviewed-by: Jeffrey Altman <jaltman@secure-endpoints.com>
Tested-by: Jeffrey Altman <jaltman@secure-endpoints.com>

8 years agoWindows: AFSFileUpdateResultCB ParentDataVersion
Jeffrey Altman [Sat, 31 Dec 2011 02:45:54 +0000]
Windows: AFSFileUpdateResultCB ParentDataVersion

Add the parent directory data version to the AFSFileUpdateResultCB
structure.

Change-Id: Ia1b1345c410ff216b35f3d42912ac921b978a299
Reviewed-on: http://gerrit.openafs.org/6459
Reviewed-by: Jeffrey Altman <jaltman@secure-endpoints.com>
Tested-by: Jeffrey Altman <jaltman@secure-endpoints.com>

8 years agoWindows: renames that overwrite existing target
Jeffrey Altman [Sat, 31 Dec 2011 01:09:06 +0000]
Windows: renames that overwrite existing target

The Windows client up to this point has never correctly implemented
directory renames.  For the longest time it assumed that the file
server would not replace a pre-existing target.  As a result, when
the target name was already in use the contents of the directory
would end up with the target name existing but its previous file id
associated with it.

A second problem was that lookups for the source and target names
were not performed while the directory (or directories) were exclusively
held to ensure that competing changes could not occur.

This patchset corrects both issues in cm_Rename() and adjusts the
redirector interface to match the new behavior.

Change-Id: I4f5cff7debcf9925947ac3fc6931565acb57ebd9
Reviewed-on: http://gerrit.openafs.org/6457
Reviewed-by: Jeffrey Altman <jaltman@secure-endpoints.com>
Tested-by: Jeffrey Altman <jaltman@secure-endpoints.com>

8 years agoWindows: AFSDirEnumResp and AFSDirEnumEntry changes
Jeffrey Altman [Fri, 30 Dec 2011 06:34:51 +0000]
Windows: AFSDirEnumResp and AFSDirEnumEntry changes

A directory enumeration is not an atomic operation.  The redirector
reads an enumeration a chunk at a time.  During the entire enumeration
it is possible that the data version of the directory object has
changed due to entries being added or removed.  This patchset adds
two data version values to the AFSDirEnumResp structure.

The first is the snapshot data version which is the dv of the
directory object at the time the entry list snapshot was taken.
The second is the current data version number of the directory
object.

If an object has been removed from the directory after the snapshot
was taken, attempts to fetch status information for the object will
fail with a VNOVNODE (aka CM_ERROR_BADFD aka STATUS_INVALID_HANDLE).
The NTStatus field has been added to the AFSDirEnumEntry structure
to permit notifying the redirector of such failures.

RDR_PopulateCurrentEntry() has been extended with an additional
cm_Error parameter that accepts the errorCode field provided by
the cm_direnum_entry_t object constructed during the enumeration.

Change-Id: Iee8f6bf9919780ce4dd6c2b184810c0d6afc39cc
Reviewed-on: http://gerrit.openafs.org/6455
Reviewed-by: Jeffrey Altman <jaltman@secure-endpoints.com>
Tested-by: Jeffrey Altman <jaltman@secure-endpoints.com>

8 years agoWindows: Add AFSFileEvalResultCB
Jeffrey Altman [Fri, 30 Dec 2011 06:24:27 +0000]
Windows: Add AFSFileEvalResultCB

In response to AFS_REQUEST_TYPE_EVAL_TARGET_BY_ID and
AFS_REQUEST_TYPE_EVAL_TARGET_BY_NAME, return the new AFSFileEvalResultCB
instead of a raw AFSDirEnumEntry.   AFSFileEvalResultCB includes
the data version number of the parent directory at the time the
node was evaluated.

Change-Id: Ida25790688f8ab193c234c9b3fadf4f594edd740
Reviewed-on: http://gerrit.openafs.org/6454
Reviewed-by: Jeffrey Altman <jaltman@secure-endpoints.com>
Tested-by: Jeffrey Altman <jaltman@secure-endpoints.com>

8 years agoWindows: Add AFSFileCleanupResultCB
Jeffrey Altman [Fri, 30 Dec 2011 06:10:08 +0000]
Windows: Add AFSFileCleanupResultCB

Add AFSFileCleanupResultCB which includes the parent directory
data version number.  This is necessary because object deletion occurs
during the Cleanup processing and the redirector needs to know the
resulting data version of the affected directory.

Change-Id: Iac07ddaaa3e3373f1690c85d247313e070450169
Reviewed-on: http://gerrit.openafs.org/6453
Reviewed-by: Jeffrey Altman <jaltman@secure-endpoints.com>
Tested-by: Jeffrey Altman <jaltman@secure-endpoints.com>

8 years agoWindows: STATUS_OBJECT_PATH_INVALID == invalid parent directory
Jeffrey Altman [Thu, 29 Dec 2011 23:31:11 +0000]
Windows: STATUS_OBJECT_PATH_INVALID == invalid parent directory

Modify evaluation of nodes by name and id to consistently return
STATUS_OBJECT_PATH_INVALID if the parent FID no longer exists.

Change-Id: I94f56e5b525a35279152f6f7848654a56bbfa235
Reviewed-on: http://gerrit.openafs.org/6446
Reviewed-by: Jeffrey Altman <jaltman@secure-endpoints.com>
Tested-by: Jeffrey Altman <jaltman@secure-endpoints.com>

8 years agoWindows: Request extents readability
Jeffrey Altman [Tue, 27 Dec 2011 01:46:46 +0000]
Windows: Request extents readability

Two minor code modifications to make the code easier to read.

Change-Id: I1cf72911ace4eff17c857cd000cb24fbe0f28c2b
Reviewed-on: http://gerrit.openafs.org/6433
Reviewed-by: Jeffrey Altman <jaltman@secure-endpoints.com>
Tested-by: Jeffrey Altman <jaltman@secure-endpoints.com>

8 years agoWindows: RequestExtents avoid bufWrite if rdr held
Jeffrey Altman [Tue, 27 Dec 2011 01:44:36 +0000]
Windows: RequestExtents avoid bufWrite if rdr held

If the cm_buf_t is held by the redirector the buffer cannot
be written back to the file server even if dirty.  Therefore,
do not check whether or not the cm_buf_t is dirty until after
it is known that the buffer is not redirector owned.

Change-Id: I10dc8f74915c2267dc44138284eba273eb708e0a
Reviewed-on: http://gerrit.openafs.org/6432
Reviewed-by: Jeffrey Altman <jaltman@secure-endpoints.com>
Tested-by: Jeffrey Altman <jaltman@secure-endpoints.com>

8 years agoWindows: avoid race during Fcb cleanup
Jeffrey Altman [Sat, 31 Dec 2011 21:07:00 +0000]
Windows: avoid race during Fcb cleanup

The worker thread can race with a AFSCleanup() operation and
tear down the Fcb before the AFSCleanup() drops the Fcb->NPFcb->Resource.
Avoid this race by requiring the worker thread to obtain the resource
once before deleting the resource.

Change-Id: Iafad8260c5dfc4187a62c04b14d55ac0bf0e4aeb
Reviewed-on: http://gerrit.openafs.org/6462
Reviewed-by: Jeffrey Altman <jaltman@secure-endpoints.com>
Tested-by: Jeffrey Altman <jaltman@secure-endpoints.com>

8 years agoWindows: avoid deadlock if bulk error during enum
Jeffrey Altman [Sat, 31 Dec 2011 21:04:27 +0000]
Windows: avoid deadlock if bulk error during enum

If the cache manager has a valid callback at the start of a
directory enumeration, the service can begin a bulk status rpc
which can fail.  The error code from the rpc is never propagated
to the caller, therefore the caller loops forever attempting to
complete the enumeration with status info.

Fix it by returning the error.

Change-Id: I53892ddf338152d53c533ef31c3b1047c96bfbf2
Reviewed-on: http://gerrit.openafs.org/6461
Reviewed-by: Jeffrey Altman <jaltman@secure-endpoints.com>
Tested-by: Jeffrey Altman <jaltman@secure-endpoints.com>

8 years agoWindows: AFSInsertHashEntry can fail
Jeffrey Altman [Sat, 31 Dec 2011 01:24:49 +0000]
Windows: AFSInsertHashEntry can fail

If AFSInsertHashEntry() fails, the object information structure
that was being inserted is not in the btree.  Therefore, ensure
that the object does not have the AFS_OBJECT_INSERTED_HASH_TREE
or AFS_VOLUME_INSERTED_HASH_TREE flag set (as appropriate).
This permits the unreferenced object to be garbage collected.

Change-Id: I023f765571a7ba014556d9505ab2d46ec930f1a2
Reviewed-on: http://gerrit.openafs.org/6458
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Tested-by: Jeffrey Altman <jaltman@secure-endpoints.com>
Reviewed-by: Jeffrey Altman <jaltman@secure-endpoints.com>

8 years agoWindows: additional AFSValidateEntry logging
Jeffrey Altman [Fri, 30 Dec 2011 17:55:30 +0000]
Windows: additional AFSValidateEntry logging

Change-Id: Iecfbaff197b83de1c31c51d18f819c9d1be54f60
Reviewed-on: http://gerrit.openafs.org/6456
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Tested-by: Jeffrey Altman <jaltman@secure-endpoints.com>
Reviewed-by: Jeffrey Altman <jaltman@secure-endpoints.com>

8 years agoWindows: add DV and error status to dir enumerations
Jeffrey Altman [Fri, 30 Dec 2011 03:20:38 +0000]
Windows: add DV and error status to dir enumerations

The cm_BPlusDirEnum family of functions are atomic when generating
the directory enumeration but are not atomic with respect to the
rest of the system as the enumeration is accessed.  Therefore, the
data version of the directory at the time the enumeration is created
may not be the same as the directory version when the enumeration
is fully processed.  We therefore store the initial data version in the
cm_direnum_t object.

When the enumeration is fetching status information for each of the
directory entries, it is possible that the fetch status will fail.
We therefore store the fetch status error code in the cm_direnum_entry_t
object.   By doing so, the consumer of the enumeration can make a
reasonable decision about the lack of status info.  For example,
if the resulting error is CM_ERROR_BADFD it is known that the entry
has been removed from the directory since the initial enumeration.

Change-Id: I289881e2c59525a9f998559b00769d3ac3f335c0
Reviewed-on: http://gerrit.openafs.org/6452
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Jeffrey Altman <jaltman@secure-endpoints.com>
Tested-by: Jeffrey Altman <jaltman@secure-endpoints.com>

8 years agoWindows: protect merge status against dscp == scp
Jeffrey Altman [Fri, 30 Dec 2011 03:18:59 +0000]
Windows: protect merge status against dscp == scp

If the directory status object is the same as the object for which
status info is being merged, the object will refer to itself as its
own parent.  Do not permit that.

Change-Id: I6f7b6416f4c875a30dd5b85ba679389484523b12
Reviewed-on: http://gerrit.openafs.org/6451
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Tested-by: Jeffrey Altman <jaltman@secure-endpoints.com>
Reviewed-by: Jeffrey Altman <jaltman@secure-endpoints.com>

8 years agoWindows: protect dir ops by CM_SCACHESYNC_STOREDATA
Jeffrey Altman [Fri, 30 Dec 2011 00:58:19 +0000]
Windows: protect dir ops by CM_SCACHESYNC_STOREDATA

CM_SCACHESYNC_STOREDATA is used to ensure that only one directory
modifying rpc can be issued to the file server at a time on a
single cm_scache_t.  However, the local directory modifications
were being made after cm_MergeStatus() and cm_SyncOpDone()
were called.  As a result, serialization of changes against the
local directory buffers and b+tree was lost.

Change-Id: I1e99685767b6b9b51e546be0946b189386e8dbd2
Reviewed-on: http://gerrit.openafs.org/6450
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Tested-by: Jeffrey Altman <jaltman@secure-endpoints.com>
Reviewed-by: Jeffrey Altman <jaltman@secure-endpoints.com>

8 years agoWindows: init scache DV=CM_SCACHE_VERSION_BAD
Jeffrey Altman [Fri, 30 Dec 2011 00:19:04 +0000]
Windows: init scache DV=CM_SCACHE_VERSION_BAD

zero is a valid DV.  CM_SCACHE_VERSION_BAD is not.

Change-Id: I65c10153059bae6dbd4da344958db4a6be309633
Reviewed-on: http://gerrit.openafs.org/6449
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Tested-by: Jeffrey Altman <jaltman@secure-endpoints.com>
Reviewed-by: Jeffrey Altman <jaltman@secure-endpoints.com>

8 years agoWindows: afsredirlib log messages
Jeffrey Altman [Thu, 29 Dec 2011 17:45:16 +0000]
Windows: afsredirlib log messages

Improve or correct a number of log messages.  Report the correct
FID or NT Status value, etc.

Change-Id: I434b47e1350767f868170323280298f77e1a840a
Reviewed-on: http://gerrit.openafs.org/6442
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Tested-by: Jeffrey Altman <jaltman@secure-endpoints.com>
Reviewed-by: Jeffrey Altman <jaltman@secure-endpoints.com>

8 years agoWindows: Symlink resolve failure error
Jeffrey Altman [Thu, 29 Dec 2011 17:42:26 +0000]
Windows: Symlink resolve failure error

If a symlink cannot be resolved, return STATUS_REPARSE_POINT_NOT_RESOLVED
instead of STATUS_ACCESS_DENIED.  The symlink is after all a reparse
point.  This results in a more meaningful error being delivered to
the end user.

Change-Id: I30713dac7b916efaf3cf7a5d7717cb0bc971a31a
Reviewed-on: http://gerrit.openafs.org/6441
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Tested-by: Jeffrey Altman <jaltman@secure-endpoints.com>
Reviewed-by: Jeffrey Altman <jaltman@secure-endpoints.com>

8 years agoWindows: Make idle dead timeout very long
Jeffrey Altman [Wed, 28 Dec 2011 22:08:23 +0000]
Windows: Make idle dead timeout very long

The idle dead timeout processing must eventually be removed
from Rx for initiators.  In the meantime, make the timeout period
ten times longer than the hard dead timeout.  This permits eventual
failure when the server doesn't respond in ten minutes but avoids
more transient issues.

Change-Id: Ia673666dd55b33c4375ee8fdcbb89c82e8b01185
Reviewed-on: http://gerrit.openafs.org/6440
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Tested-by: Jeffrey Altman <jaltman@secure-endpoints.com>
Reviewed-by: Jeffrey Altman <jaltman@secure-endpoints.com>

8 years agoWindows: replace strdup with xdr_alloc in callback processing
Jeffrey Altman [Wed, 28 Dec 2011 22:07:01 +0000]
Windows: replace strdup with xdr_alloc in callback processing

The CRT allocator cannot be used for memory that will be freed
by afsrpc.dll.  Use xdr_alloc() instead.

Change-Id: Idd33710c225d58b4e6eba0bfdb2f8b3282996258
Reviewed-on: http://gerrit.openafs.org/6439
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Tested-by: Jeffrey Altman <jaltman@secure-endpoints.com>
Reviewed-by: Jeffrey Altman <jaltman@secure-endpoints.com>

8 years agowindows: osi_TSignalForMLs simplify
Jeffrey Altman [Tue, 27 Dec 2011 01:59:21 +0000]
windows: osi_TSignalForMLs simplify

Simplify logic for readability and efficiency.

Change-Id: I3c78b23b6fcf8478fe20a803755923108995d532
Reviewed-on: http://gerrit.openafs.org/6438
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Tested-by: Jeffrey Altman <jaltman@secure-endpoints.com>
Reviewed-by: Jeffrey Altman <jaltman@secure-endpoints.com>

8 years agoWindows: osisleep do not tamper with queues
Jeffrey Altman [Tue, 27 Dec 2011 01:56:38 +0000]
Windows: osisleep do not tamper with queues

There is no need to manually remove an entry from a queue before
executing osi_QRemoveHT().  osi_QRemoveHT() removes the item
from the queue and fixes up the pointers correctly.  Manual
intervention is a waste of cpu and can be harmful.

Change-Id: Iaea4ceac2cb5f61e5bb73fd181bd934e06ddf0a6
Reviewed-on: http://gerrit.openafs.org/6437
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Tested-by: Jeffrey Altman <jaltman@secure-endpoints.com>
Reviewed-by: Jeffrey Altman <jaltman@secure-endpoints.com>

8 years agoWindows: osi_sleepInfo tid type
Jeffrey Altman [Tue, 27 Dec 2011 01:55:22 +0000]
Windows: osi_sleepInfo tid type

The thread id type is DWORD not size_t for consistency
with the rest of the client_osi package.

Change-Id: I2e2d31d8738d9de82d99f346f5109de133f3e25e
Reviewed-on: http://gerrit.openafs.org/6436
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Tested-by: Jeffrey Altman <jaltman@secure-endpoints.com>
Reviewed-by: Jeffrey Altman <jaltman@secure-endpoints.com>

8 years agoWindows: add osi_TWaitExt(), fix osi_TWait()
Jeffrey Altman [Tue, 27 Dec 2011 01:51:33 +0000]
Windows: add osi_TWaitExt(), fix osi_TWait()

osi_TWait() was adding new locks to the turnstile at the tail
which is the end of the queue locks are removed from.  This
implemented LIFO instead of FIFO when FIFO is the "fair" order
to service lock requests.

osi_TWaitExt() is added to permit the Reader to Writer upgrade
request to use LIFO when more than one reader is present.

Change-Id: Ib6435a3edc2cb8519939cfad93e0db4b0604da2d
Reviewed-on: http://gerrit.openafs.org/6435
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Tested-by: Jeffrey Altman <jaltman@secure-endpoints.com>
Reviewed-by: Jeffrey Altman <jaltman@secure-endpoints.com>

8 years agoWindows: use waiters counter instead of osi_TEmpty
Jeffrey Altman [Tue, 27 Dec 2011 01:48:24 +0000]
Windows: use waiters counter instead of osi_TEmpty

The osi_TEmpty() macro examines the values of the turnstile
pointers.  Instead use the lock's 'waiters' counter to determine
if there are waiting threads to signal.

Change-Id: I8e14a03a30adcf1e67b07fc020104c2ada3b5c6a
Reviewed-on: http://gerrit.openafs.org/6434
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Tested-by: Jeffrey Altman <jaltman@secure-endpoints.com>
Reviewed-by: Jeffrey Altman <jaltman@secure-endpoints.com>

8 years agoWindows: kauth search for kerberos iv port first
Jeffrey Altman [Sat, 24 Dec 2011 20:16:12 +0000]
Windows: kauth search for kerberos iv port first

Modify src/kauth/user_nt.c to match the service name search
order of the Unix code:

 kerberos4
 kerberos-iv
 kerberos

The standard Windows SERVICES file includes "kerberos-iv" as
port 750.

FIXES 127907

Change-Id: I518a812cc2d465334e8ef6929f8988c51b33749b
Reviewed-on: http://gerrit.openafs.org/6430
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Reviewed-by: Jeffrey Altman <jaltman@secure-endpoints.com>

8 years agoafs: Panic on afs_conn refcount imbalance
Andrew Deason [Thu, 22 Dec 2011 20:48:49 +0000]
afs: Panic on afs_conn refcount imbalance

An undercounted afs_conn can easily cause a panic and/or memory
corruption later on, since we put an rx_connection reference with each
afs_conn reference. Panic as soon as we detect this, as this indicates
a serious bug.

Change-Id: I251fd3303114d0822b8cf70805a8a447986a7762
Reviewed-on: http://gerrit.openafs.org/6413
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Derrick Brashear <shadow@dementix.org>

8 years agoafs: Add afs_WriteDCache sanity checks
Andrew Deason [Wed, 21 Dec 2011 22:01:16 +0000]
afs: Add afs_WriteDCache sanity checks

Writing a non-free non-discarded dcache entry with a zero volume id
can easily cause hash table corruption later on, so make sure we don't
do that. Also log something if the write itself fails, as this usually
indicates an unusual situation involving I/O errors or something.

Change-Id: Ib9602227e8cee324cb63a4a3dee28e53af69b446
Reviewed-on: http://gerrit.openafs.org/6419
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Derrick Brashear <shadow@dementix.org>

8 years agoafs: Cope with afs_GetValidDSlot errors
Andrew Deason [Wed, 21 Dec 2011 21:05:40 +0000]
afs: Cope with afs_GetValidDSlot errors

Make callers of afs_GetValidDSlot deal with getting a NULL dcache,
which can occur if an error is encountered. Some of these just panic
at least for now, since a code path for recovery is complex, but this
is at least better than dereferencing a NULL pointer.

Change-Id: I4022a914bbaa0e1f3f4daadfdc32d165a6e2febd
Reviewed-on: http://gerrit.openafs.org/6418
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Derrick Brashear <shadow@dementix.org>

8 years agoafs: Do not always ignore errors in afs_GetDSlot
Andrew Deason [Wed, 21 Dec 2011 20:04:32 +0000]
afs: Do not always ignore errors in afs_GetDSlot

Currently afs_UFSGetDSlot will silently swallow any error in reading
the specified dslot from disk, and will return a "blank" dcache to the
caller. However, many callers of afs_GetDSlot will be asking for a
dcache that we know exists, and more importantly, we know is on the
global hash table. If a disk error is encountered and we're given a
"blank" dcache, we will erroneously believe the dcache entry is not on
the hash table, causing corruption of the hash table later on.

So instead, modify all callers of afs_GetDSlot to use either
afs_GetValidDSlot or afs_GetNewDSlot. Calling afs_GetValidDSlot
indicates that the given dentry index is known to be valid, and any
error encountered while reading the entry from disk should result in
an error (for disk I/O errors we have no control over, this results in
a NULL dentry returned; for internal consistency errors we panic).
Calling afs_GetNewDSlot indicates that the specified index may not
exist or may not be valid, and so returning a "blank" dentry in that
case is fine.

For memcache, the situation is the same, except any time we go to
"disk" it is an (internal) error, since there is no disk.

Change-Id: I53ea6e99649e4d6d5cbde58929dfcee1d45a3e7b
Reviewed-on: http://gerrit.openafs.org/6417
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Derrick Brashear <shadow@dementix.org>

8 years agoafs: Remove second argument to afs_GetDSlot
Andrew Deason [Wed, 21 Dec 2011 22:25:29 +0000]
afs: Remove second argument to afs_GetDSlot

All callers of afs_GetDSlot were passing NULL as the second argument
to afs_GetDSlot. So, remove the argument, and behave as if tmpdc was
NULL unconditionally.

Change-Id: I138fe917d739c3020c35c20da48ffdf38f682fd6
Reviewed-on: http://gerrit.openafs.org/6416
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Derrick Brashear <shadow@dementix.org>

8 years agoafs: Indicate error from afs_osi_Read/Write better
Andrew Deason [Thu, 22 Dec 2011 20:01:52 +0000]
afs: Indicate error from afs_osi_Read/Write better

Currently afs_osi_Read and afs_osi_Write just return -1 on any I/O
error, even though they know the error code given from the OS VFS.
Just return that code instead so the caller can see what the error
was; but negate it, so it's clear that it is an error.

Change-Id: I3d8350da18d075713356137a1cacf182a749fe3e
Reviewed-on: http://gerrit.openafs.org/6412
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Derrick Brashear <shadow@dementix.org>

8 years agoafs: afs_osi_Read/Write returns negative on error
Andrew Deason [Thu, 22 Dec 2011 19:50:09 +0000]
afs: afs_osi_Read/Write returns negative on error

afs_osi_Read and afs_osi_Write need to return negative values on
error. EIO is not negative; return -EIO so we don't accidentally
return "success" if someone requested to read or write EIO bytes.

Change-Id: Id0693776737fdf7086de16a935ad3942f5026e55
Reviewed-on: http://gerrit.openafs.org/6411
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Reviewed-by: Derrick Brashear <shadow@dementix.org>

8 years agoklog.krb5: cast get_cred_keylen to unsigned
Andrew Deason [Thu, 22 Dec 2011 18:50:53 +0000]
klog.krb5: cast get_cred_keylen to unsigned

get_cred_keylen can yield a type besides an unsigned int (such as a
size_t on heimdal). But we are printing it with %u, which causes a
warning, so cast it to an unsigned int.

Change-Id: I7b89de5b0b163b9532ac347e9c56e865cb58f266
Reviewed-on: http://gerrit.openafs.org/6410
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Reviewed-by: Derrick Brashear <shadow@dementix.org>

8 years agofuse: Autodetect Solaris 11 FUSE
Andrew Deason [Fri, 23 Dec 2011 23:31:10 +0000]
fuse: Autodetect Solaris 11 FUSE

FUSE exists in Solaris 11, but it does not come with a fuse.pc
pkg-config configuration. Autodetect the presence of FUSE anyway.

Change-Id: Ia052ba0a1bfe511dd051f3cfbee10395dc9d2c60
Reviewed-on: http://gerrit.openafs.org/6422
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Derrick Brashear <shadow@dementix.org>

8 years agoafsd.fuse: Solaris 11 support
Andrew Deason [Thu, 22 Dec 2011 04:19:01 +0000]
afsd.fuse: Solaris 11 support

The FUSE in Solaris 11 has a couple of quirks; work around them.

Change-Id: I29b8a8858467d1c6ebacb4926a15165feae64f2c
Reviewed-on: http://gerrit.openafs.org/6421
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Reviewed-by: Derrick Brashear <shadow@dementix.org>

8 years agoafsd: Parse cacheinfo during argument parsing
Andrew Deason [Thu, 22 Dec 2011 03:00:12 +0000]
afsd: Parse cacheinfo during argument parsing

Currently we parse cacheinfo in afsd_run, when the client is
initialized and started. Parsing cacheinfo can change
afsd_cacheMountDir, however, which may be of interest to afsd.o users;
in particular, libuafs exposes this via uafs_MountDir(). This means
that if a mount dir is not explicitly specified in the libcmd
arguments to afsd, a libuafs-using program will see the mountpoint as
the empty string if it is queried after afsd_parse but before
afsd_run. For afsd.fuse, this causes the cryptic error message:

    fuse: bad mount point `': No such file or directory

since the mountpoint is the empty string if it is not specified
explicitly on the command line.

To fix this, move cacheinfo parsing to effectively near the end of
afsd_parse, so the mountpoint is calculated in afsd_parse().

Change-Id: I058f2c7c2f0cc21db21c4b1d38ff63b9e9ed1562
Reviewed-on: http://gerrit.openafs.org/6400
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Derrick Brashear <shadow@dementix.org>

8 years agofuse: Add -oallow_other by default where possible
Andrew Deason [Fri, 2 Dec 2011 22:06:42 +0000]
fuse: Add -oallow_other by default where possible

By default, fuse mountpoints are only accessible by the same uid as
that which mounted the fuse filesystem. When we're running as root,
specify -oallow_other so by default anyone can access the afs
mountpoint.

Change-Id: Idc732a22136fbe6bc585b76ac6291d8518f1f9de
Reviewed-on: http://gerrit.openafs.org/6390
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Derrick Brashear <shadow@dementix.org>

8 years agoWindows: Avoid bottleneck on VolumeLock
Peter Scott [Sat, 24 Dec 2011 00:00:57 +0000]
Windows: Avoid bottleneck on VolumeLock

The VolumeLock resource was obtained during each AFSParseName()
and held across a wide range of operations including volume
info queries, renames, and extent requests.  These operations can
take a long time to complete and as long as the VolumeLock was
held exclusively there could only be one operation in flight at
a time on a given volume.  This significantly reduced the parallelism
of operations.

The VolumeLock was not required in almost all cases.  This patchset
adjusts the use of the VolumeLock and avoids the bottleneck.

Change-Id: I9d60fe41d157b9e315aeaa15feee8d1e0d4ded4c
Reviewed-on: http://gerrit.openafs.org/6420
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Tested-by: Jeffrey Altman <jaltman@secure-endpoints.com>
Reviewed-by: Jeffrey Altman <jaltman@secure-endpoints.com>

8 years agoWindows: avoid race in cm_GetNewSCache
Jeffrey Altman [Sat, 24 Dec 2011 08:15:53 +0000]
Windows: avoid race in cm_GetNewSCache

The cm_scacheLock is dropped while walking the scache LRU queue.
As a result it is possible for the cm_scache_t that is being
considered for recycling to be accessed and moved to the head
of the queue.

Track the prev and next pointers so it is possible to detect if
the cm_scache_t that is about to be recycled has been moved.  If
so, restart the search from the tail.

Change-Id: I6c3b645b85aa60197b9b6d60cffdcb818eb6f4b2
Reviewed-on: http://gerrit.openafs.org/6424
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Jeffrey Altman <jaltman@secure-endpoints.com>
Tested-by: Jeffrey Altman <jaltman@secure-endpoints.com>

8 years agoWindows: cm_BufWrite() must wait in cm_SyncOp()
Jeffrey Altman [Sat, 24 Dec 2011 08:11:04 +0000]
Windows: cm_BufWrite() must wait in cm_SyncOp()

Now that it is permissible for more than one store data operation
to construct BIOD lists in parallel, cm_BufWrite() must be willing
to wait in cm_SyncOp().  Otherwise, the daemon threads will spin.

Change-Id: I77ee2005025de9255b4c9cdb8bed8efc44b9518a
Reviewed-on: http://gerrit.openafs.org/6423
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Jeffrey Altman <jaltman@secure-endpoints.com>
Tested-by: Jeffrey Altman <jaltman@secure-endpoints.com>

8 years agorx: Don't adjust non-existent events
Simon Wilkinson [Sat, 24 Dec 2011 17:23:48 +0000]
rx: Don't adjust non-existent events

If we notice that time has gone backwards (that is, the current
time is older than the time of the last event we fired), then we
reschedule all pending events.

On Windows, immediately after we have resumed from a suspend, this
code path can be executed with an empty event tree, causing an
exception:

FAULTING_IP:
afsrpc!adjustTimes+cf [c:\src\openafs\openafs.git\repo\src\rx\rx_event.c @ 213]
00000000`61041847 4c8b4030        mov     r8,qword ptr [rax+30h]

EXCEPTION_RECORD:  ffffffffffffffff -- (.exr 0xffffffffffffffff)
ExceptionAddress: 0000000061041847 (afsrpc!adjustTimes+0x00000000000000cf)
   ExceptionCode: c0000005 (Access violation)
  ExceptionFlags: 00000000
NumberParameters: 2
   Parameter[0]: 0000000000000000
   Parameter[1]: 0000000000000030
Attempt to read from address 0000000000000030

Resolve this by checking for an empty tree before we attempt to adjust
event times. If the tree is empty, we just zero the last event time
(so we don't keep running the adjustTimes routine), and continue as
normal.

Change-Id: I42a42ff1bd53a9d5c4733efc7ac5f629426b3aa1
Reviewed-on: http://gerrit.openafs.org/6425
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Jeffrey Altman <jaltman@secure-endpoints.com>
Tested-by: Jeffrey Altman <jaltman@secure-endpoints.com>

8 years agoWindows: AFSCleanup extent processing
Jeffrey Altman [Thu, 22 Dec 2011 02:47:56 +0000]
Windows: AFSCleanup extent processing

1. Perform a CcFlushCache() any time the file is cached
   and the Context Control Block indicates that the handle
   has FILE_WRITE_DATA permission.

2. Perform an AFSFlushExtents() whenever there are dirty
   extents and the handle has FILE_WRITE_DATA permission.
   No point flushing the extents if the AuthGroup does not
   have write permission.  Another Ccb must exist that does
   have write permission.

Change-Id: I3ece011b484c12e7dc936b81c272ba6a42f6c7d6
Reviewed-on: http://gerrit.openafs.org/6399
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Peter Scott <pscott@kerneldrivers.com>
Tested-by: Jeffrey Altman <jaltman@secure-endpoints.com>
Reviewed-by: Jeffrey Altman <jaltman@secure-endpoints.com>

8 years agoWindows: AFSRetrieveValidAuthGroup FILE_READ_DATA
Jeffrey Altman [Thu, 22 Dec 2011 02:37:41 +0000]
Windows: AFSRetrieveValidAuthGroup FILE_READ_DATA

Only an AuthGroup belonging to a Context Control Block that was
granted the FILE_READ_DATA permission is capable of reading
data from the file server.

Change-Id: I93a7d8e65a6bc87b44399a30da5c0dd7d4e07685
Reviewed-on: http://gerrit.openafs.org/6398
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Peter Scott <pscott@kerneldrivers.com>
Reviewed-by: Jeffrey Altman <jaltman@secure-endpoints.com>
Tested-by: Jeffrey Altman <jaltman@secure-endpoints.com>

8 years agoWindows: AFSRequestExtentsAsync retry with alt authgroup
Jeffrey Altman [Thu, 22 Dec 2011 02:34:14 +0000]
Windows: AFSRequestExtentsAsync retry with alt authgroup

If AFSRequestExtentsAsync() fails to obtain requested extents
due to STATUS_ACCESS_DENIED using the AuthGroup associated with
the Context Control Block, try to find an alternate AuthGroup
to use to perform the extent request.  We have already told
Windows what permissions the application has when the file was
opened.  Windows will perform its own validation checks prior
to permitting the data to be accessed or altered.

Change-Id: I430657e8c8e30c9f636a5ec81065af4122c926d7
Reviewed-on: http://gerrit.openafs.org/6397
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Jeffrey Altman <jaltman@secure-endpoints.com>
Tested-by: Jeffrey Altman <jaltman@secure-endpoints.com>

8 years agoWindows: Use AuthGroups for extent request error reporting
Jeffrey Altman [Thu, 22 Dec 2011 02:17:33 +0000]
Windows: Use AuthGroups for extent request error reporting

The afs redirector current tracks the most recent extent error
in the File Control Block.  Prior to this patchset the error
was returned to the requesting thread when the process Id matched
the most recent Process to issue a request.  This approach resulted
in a couple of problems.

 1. There are multiple threads that can issue an extent request
    on the same file at the same time representing different processes.
    Resetting the process Id with each new request could clear the
    error prior to its receipt.

 2. The failure may be due to inappropriate permissions.  Permissions
    are not associated with proceses but with Authentication Groups.

This patchset makes several changes:

 1. It enables the afsd_service to track the active authgroup as
    part of the cm_user_t structure and associates that object with
    the BIOD object to ensure that the active authgroup can be
    reported to the afs redirector.

 2. It modifies the AFSExtentFailureCB structure to include the
    AuthGroup GUID.

 3. It tracks the AuthGroup GUID associated with the extent
    failure in the non-paged file control block.

 4. It converts all tests on Process Id to use AuthGroup instead.

 5. It alters the behavior of error delivery such that reported
    error is only cleared after it has been reported once to a
    thread using the matching AuthGroup.

These changes make the situation better but not perfect as error
states can still be lost.  However, it avoids the case most often
seen in production where two processes (a end user process and an
anti-malware process) are fighting over a file and the anti-malware
process has no permission to access the file under its own credentials.

Change-Id: Ia5c3877b8d46de695c86884c4166dc812885a72c
Reviewed-on: http://gerrit.openafs.org/6396
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Peter Scott <pscott@kerneldrivers.com>
Reviewed-by: Jeffrey Altman <jaltman@secure-endpoints.com>
Tested-by: Jeffrey Altman <jaltman@secure-endpoints.com>

8 years agoWindows: Explicit permission check on extent release
Jeffrey Altman [Thu, 22 Dec 2011 02:10:45 +0000]
Windows: Explicit permission check on extent release

When a data extent is released by the afs redirector or the
afsd_service performs an extent claw back during a cleanup
operation, perform an explicit permission check before attempting
to store dirty buffers to the file server.   Instead of waiting
for the file server to fail the request, fail it immediately.

The permission check is performed using the currently active
authentication group.

Change-Id: I533f06ec10b8a6f4dbe5e18b1205b20881b5559a
Reviewed-on: http://gerrit.openafs.org/6395
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Jeffrey Altman <jaltman@secure-endpoints.com>
Tested-by: Jeffrey Altman <jaltman@secure-endpoints.com>

8 years agoWindows: RDR_CleanupFileEntry restrict extent claw back
Jeffrey Altman [Thu, 22 Dec 2011 02:08:59 +0000]
Windows: RDR_CleanupFileEntry restrict extent claw back

Only demand that extents be returned by the afs redirector
if this cleanup is the last open handle or the redirector has
requested that the file be flushed to the file server.

Change-Id: I03ddcd153d2ded5fc805148a192234742d20b29e
Reviewed-on: http://gerrit.openafs.org/6394
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Jeffrey Altman <jaltman@secure-endpoints.com>
Tested-by: Jeffrey Altman <jaltman@secure-endpoints.com>

8 years agoWindows: remove unused AFSRequestExtents()
Jeffrey Altman [Thu, 22 Dec 2011 02:03:52 +0000]
Windows: remove unused AFSRequestExtents()

Change-Id: I25251827ab2cfb68ba20cf97eaebb669e4f36a82
Reviewed-on: http://gerrit.openafs.org/6393
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Peter Scott <pscott@kerneldrivers.com>
Reviewed-by: Jeffrey Altman <jaltman@secure-endpoints.com>
Tested-by: Jeffrey Altman <jaltman@secure-endpoints.com>

8 years agoWindows: Bad DV invalidate only when new DV not 0
Jeffrey Altman [Thu, 22 Dec 2011 01:49:59 +0000]
Windows: Bad DV invalidate only when new DV not 0

If the current DV is BAD_VERSION and the new DV is 0, do not send
an invalidation to the redirector.  It only results in wasteful work.
If the current DV is BAD_VERSION the object either:

 1. was never previously known

 2. was recently flushed

 3. the cm_scache_t was recycled

In all cases, the redirector does not have knowledge of the object
since either it didn't exist or a previous invalidation was sent.

Change-Id: I7e0cf41bae64660e4e1ec342bafcf3ef8a693d56
Reviewed-on: http://gerrit.openafs.org/6392
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Jeffrey Altman <jaltman@secure-endpoints.com>
Tested-by: Jeffrey Altman <jaltman@secure-endpoints.com>

8 years agoWindows: Define times in terms of AFS_ONE_SECOND
Jeffrey Altman [Thu, 22 Dec 2011 01:45:19 +0000]
Windows: Define times in terms of AFS_ONE_SECOND

The afs redirector defines the macro AFS_ONE_SECOND to indicate
the number of 100ns units necessary to indicate one second of time.
Use that definition when defining other time values.  Also define
AFS_ONE_MILLISECOND and AFS_ONE_MICROSECOND.

Change-Id: Ie2a173b4037af61e9a1c5aa06129520c36d714bb
Reviewed-on: http://gerrit.openafs.org/6391
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Peter Scott <pscott@kerneldrivers.com>
Reviewed-by: Jeffrey Altman <jaltman@secure-endpoints.com>
Tested-by: Jeffrey Altman <jaltman@secure-endpoints.com>

8 years agoInclude afsconfig.h before anything else
Andrew Deason [Mon, 19 Dec 2011 22:11:31 +0000]
Include afsconfig.h before anything else

afsconfig.h can define various preprocessor symbols that can affect
how system headers behave. For example, the presence of the
_POSIX_PTHREAD_SEMANTICS symbol changes the number of arguments to
getpwnam_r on at least Solaris 8. So, we must include afsconfig.h
before including anything else, to ensure consistency.

Change-Id: I84bc73b3fada5dbc68cd355c24f2f746f2e982b3
Reviewed-on: http://gerrit.openafs.org/6387
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Jeffrey Altman <jaltman@secure-endpoints.com>

8 years agoWindows: avoid deadlock during SetRenameInformation
Jeffrey Altman [Sun, 18 Dec 2011 23:36:14 +0000]
Windows: avoid deadlock during SetRenameInformation

The VolumeLock must be held before the Fcb->NPFcb->Resource.
Obtain the VolumeLock in AFSSetFileInformation only in the
rename case instead of obtaining the VolumeLockin AFSSetRenameInformation.

Change-Id: I84f086e3a8f7d08630266c9e409e1e22c1f92742
Reviewed-on: http://gerrit.openafs.org/6377
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Jeffrey Altman <jaltman@secure-endpoints.com>
Tested-by: Jeffrey Altman <jaltman@secure-endpoints.com>

8 years agoWindows: terminate HOSTS/LMHOSTS with newline
Jeffrey Altman [Sun, 18 Dec 2011 17:08:24 +0000]
Windows: terminate HOSTS/LMHOSTS with newline

If the original file did not terminate with a newline,
add one before appending the "AFS" entry.

FIXES 130210

Change-Id: I35f96120904d09679d62ea4fb65f29648c4abfa5
Reviewed-on: http://gerrit.openafs.org/6375
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Jeffrey Altman <jaltman@secure-endpoints.com>
Tested-by: Jeffrey Altman <jaltman@secure-endpoints.com>

8 years agoWindows: Track AuthGroup in Context Control Block
Peter Scott [Wed, 14 Dec 2011 19:27:54 +0000]
Windows: Track AuthGroup in Context Control Block

Tracking the AuthGroup in the File Control Block proved to be
insufficient to ensure that dirty extents can be stored back
to the file server when an anti-virus service opens a file
in authgroup without 'write' permission immediate after the
application performing a WriteFile() opens it.  In this situation
the Fcb ends up with the AuthGroup set to the anti-virus value
and not the one that belongs to the writing application.

Tracking the AuthGroup by Ccb provides the ability to select
an AuthGroup from the list of open handles instead of tracking
the most recent one.

Change-Id: I851ea646feb531d7c765e1cf789a4ba541e4a150
Reviewed-on: http://gerrit.openafs.org/6333
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Reviewed-by: Jeffrey Altman <jaltman@secure-endpoints.com>
Tested-by: Jeffrey Altman <jaltman@secure-endpoints.com>

8 years agoWindows: Tear down extents upon file deletion
Jeffrey Altman [Sat, 17 Dec 2011 17:14:28 +0000]
Windows: Tear down extents upon file deletion

When processing AFS_INVALIDATE_REMOVED, tear down all extents
since they are no longer necessary and return them to the service
for recycling.

Change-Id: Iec6c0d2c68db16dbf3bd04c51536e13d45f0c1b8
Reviewed-on: http://gerrit.openafs.org/6365
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Jeffrey Altman <jaltman@secure-endpoints.com>
Tested-by: Jeffrey Altman <jaltman@secure-endpoints.com>

8 years agoWindows: notify file size change if flushed
Jeffrey Altman [Sat, 17 Dec 2011 17:13:17 +0000]
Windows: notify file size change if flushed

When processing AFS_INVALIDATE_FLUSHED, notify any listeners
that the file size has changed to force a complete refresh.

Change-Id: Ie5f0076ea786357ae77ef6a76f162c776d555953
Reviewed-on: http://gerrit.openafs.org/6364
Reviewed-by: Jeffrey Altman <jaltman@secure-endpoints.com>
Tested-by: BuildBot <buildbot@rampaginggeek.com>

8 years agoWindows: forget data version only for flushing
Jeffrey Altman [Sat, 17 Dec 2011 17:08:49 +0000]
Windows: forget data version only for flushing

The AFS redirector was intentionally forgetting the data version
number for AFS_INVALIDATE_DATA_VERSION events.  The point of that
event is to ensure that clean data be purged if the data version
in fact changed.  Checking the data version for change cannot be
performed if the data version is reset to -1.

Only when AFS_INVALIDATE_FLUSHED is processed should the data
version be reset to ensure that all of the data is purged.

Change-Id: I430afc4889c55c49ef24904a987b08042994cfea
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Reviewed-by: Jeffrey Altman <jaltman@secure-endpoints.com>
Tested-by: Jeffrey Altman <jaltman@secure-endpoints.com>

8 years agoWindows: fix indentation
Jeffrey Altman [Sat, 17 Dec 2011 17:07:53 +0000]
Windows: fix indentation

Change-Id: I187cfa466830a528d0ac2c77b0006e2b66b0a47c
Reviewed-on: http://gerrit.openafs.org/6362
Reviewed-by: Jeffrey Altman <jaltman@secure-endpoints.com>
Tested-by: BuildBot <buildbot@rampaginggeek.com>

8 years agoWindows: AFSSetRenameInfo log message
Jeffrey Altman [Sat, 17 Dec 2011 16:57:15 +0000]
Windows: AFSSetRenameInfo log message

Fix a typo in the log message and change its priority from
error to verbose

Change-Id: I807d7d6d9118b0fa6af3de638bb9fa2c0d90cbcb
Reviewed-on: http://gerrit.openafs.org/6361
Reviewed-by: Jeffrey Altman <jaltman@secure-endpoints.com>
Tested-by: BuildBot <buildbot@rampaginggeek.com>

8 years agoWindows: return error to system paging requests
Jeffrey Altman [Fri, 16 Dec 2011 22:24:36 +0000]
Windows: return error to system paging requests

If an error has been set on a file, return that error to the
System process for any outstanding extent requests.

Change-Id: I8f7244f19cc0e3f96a1599ce011251ade0afe3f4
Reviewed-on: http://gerrit.openafs.org/6360
Reviewed-by: Jeffrey Altman <jaltman@secure-endpoints.com>
Tested-by: BuildBot <buildbot@rampaginggeek.com>

8 years agoWindows: log volume and authgroup for redir open
Jeffrey Altman [Fri, 16 Dec 2011 23:24:50 +0000]
Windows: log volume and authgroup for redir open

If opening a volume root fails, log the authgroup and volume
to make it easier to debug the error.

Change-Id: I0c9ffc58ffaf7582a1b22043de2b5d096530de5b
Reviewed-on: http://gerrit.openafs.org/6352
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Jeffrey Altman <jaltman@secure-endpoints.com>
Tested-by: Jeffrey Altman <jaltman@secure-endpoints.com>

8 years agoWindows: save fid/type for redirector invalidation
Jeffrey Altman [Fri, 16 Dec 2011 05:12:39 +0000]
Windows: save fid/type for redirector invalidation

Must save the fid/type fields of the cm_scache_t object before
recycling in order to invalidate the contents in the redirector.

Change-Id: I7914faaa80082033044980deb471eaffbddf3cfc
Reviewed-on: http://gerrit.openafs.org/6359
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Jeffrey Altman <jaltman@secure-endpoints.com>
Tested-by: Jeffrey Altman <jaltman@secure-endpoints.com>

8 years agoWindows: move to head of queue no-op if not in queue
Jeffrey Altman [Fri, 16 Dec 2011 22:22:49 +0000]
Windows: move to head of queue no-op if not in queue

If the buffer is not in the queue, do nothing.

Change-Id: Icdb95775bcc6d010ca1926ce4384d9edcd8f1cd3
Reviewed-on: http://gerrit.openafs.org/6351
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Jeffrey Altman <jaltman@secure-endpoints.com>
Tested-by: Jeffrey Altman <jaltman@secure-endpoints.com>

8 years agoWindows: Properly convert FID structures
Jeffrey Altman [Fri, 16 Dec 2011 21:15:56 +0000]
Windows: Properly convert FID structures

Use the FID conversion function in RDR_SetFileStatus().
The FID structures are not the same in afsd_service and the
afsredirlib.sys driver.

Change-Id: I6360f39c8b90c46d468a06c08f0911f55f9142fb
Reviewed-on: http://gerrit.openafs.org/6350
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Tested-by: Jeffrey Altman <jaltman@secure-endpoints.com>
Reviewed-by: Jeffrey Altman <jaltman@secure-endpoints.com>

8 years agoWindows: propagate directory enumeration failures
Jeffrey Altman [Fri, 16 Dec 2011 16:43:32 +0000]
Windows: propagate directory enumeration failures

If a directory is enumerated with an AuthGroup that has no
permissions, do not treat the enumeration as successful.

Change-Id: I6a543a1b19b9d2e68ee2c99f67398ed94ad52896
Reviewed-on: http://gerrit.openafs.org/6344
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Jeffrey Altman <jaltman@secure-endpoints.com>
Tested-by: Jeffrey Altman <jaltman@secure-endpoints.com>

8 years agoWindows Problem with cross-directory rename
Peter Scott [Fri, 16 Dec 2011 00:52:54 +0000]
Windows Problem with cross-directory rename

Not correctly handling cross-directory rename processing

Change-Id: I36e30a68d7755241c727868074e344beb9580c2d
Reviewed-on: http://gerrit.openafs.org/6343
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Jeffrey Altman <jaltman@secure-endpoints.com>
Tested-by: Jeffrey Altman <jaltman@secure-endpoints.com>

8 years agoWindows: Update Adv Firewall Rules
Jeffrey Altman [Wed, 14 Dec 2011 17:58:36 +0000]
Windows: Update Adv Firewall Rules

Do not specify the Service Name property.  According to feedback
on openafs-info the Service Name blocks the rule from working properly.

If the rule already exists, attempt to remove the Service Name filter
and update NAT Edge Traversal and Permitted interface rules.

Change-Id: I1ab1a0c57f9271b68f91b08e530483a1fa40a165
Reviewed-on: http://gerrit.openafs.org/6332
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Jeffrey Altman <jaltman@secure-endpoints.com>
Tested-by: Jeffrey Altman <jaltman@secure-endpoints.com>

8 years agovol: fix a08c3207255756c825ab69a19e04f79dd879c646
Jeffrey Altman [Thu, 15 Dec 2011 08:28:34 +0000]
vol: fix a08c3207255756c825ab69a19e04f79dd879c646

Patchset a08c3207255756c825ab69a19e04f79dd879c646 broke the suse
and windows builds by relying on C99 language syntax.  Fix it.

Change-Id: I8220e0504048d2caff00deb08e3bf53599e596b7
Reviewed-on: http://gerrit.openafs.org/6337
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Jeffrey Altman <jaltman@secure-endpoints.com>
Tested-by: Jeffrey Altman <jaltman@secure-endpoints.com>

8 years agoafs: Clear VHardMount on ResetVolumeInfo
Andrew Deason [Wed, 14 Dec 2011 20:42:08 +0000]
afs: Clear VHardMount on ResetVolumeInfo

afs_Analyze sets VHardMount on a volume struct when a hard-mount
scenario is encountered, and clears it after sleeping. However, if the
volume struct has VRecheck set, or if it's not in memory, afs_Analyze
cannot retrieve the volume struct in order to clear VHardMount again.

For the VRecheck case, this can results in VHardMount never getting
cleared, and so hard-mount messages for the volume seem to disappear.
So, clear VHardMount when we set VRecheck so this does not occur.

For the case where the volume struct is not in memory, this is not a
problem, since when we allocate a volume struct again, the VHardMount
state will not be retained.

Change-Id: I607741241e330391b8c857b2a72f0e0cfc0b91cc
Reviewed-on: http://gerrit.openafs.org/6335
Reviewed-by: Derrick Brashear <shadow@dementix.org>
Tested-by: BuildBot <buildbot@rampaginggeek.com>

8 years agoviced: Yell when we GetSomeSpace_r
Andrew Deason [Wed, 14 Dec 2011 20:16:16 +0000]
viced: Yell when we GetSomeSpace_r

A GetSomeSpace_r call indicates we don't have enough callbacks
configured. For many people, this can happen without the administrator
realizing anything is wrong, since we never give any indication that
something is amiss, unless the administrator checks the xstat
statistics.

Since this can indicate a serious performance problem, yell in the log
when this happens. Only do it once, so we don't spam the log.

Change-Id: I5c881a3c127c20b4f086d59bf3768864307efe92
Reviewed-on: http://gerrit.openafs.org/6334
Reviewed-by: Michael Meffie <mmeffie@sinenomine.net>
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Tested-by: Derrick Brashear <shadow@dementix.org>
Reviewed-by: Derrick Brashear <shadow@dementix.org>

8 years agoRevert "Windows: cs_CZ localization"
Jeffrey Altman [Thu, 15 Dec 2011 15:00:28 +0000]
Revert "Windows: cs_CZ localization"

This reverts commit 642153cae6700e855a8abcc20be207612e1e6b3c

cs_CZ localization cannot be committed to the repository until:

1. Resource DLLs for all components are built in the tree.

2. All built components have been successfully tested so that OpenAFS is not shipping code that caused executable components to crash in the cs_CZ locale.

Change-Id: Id287d150a4c63afdc3f4105d26c9faf211da5395
Reviewed-on: http://gerrit.openafs.org/6339
Reviewed-by: Jeffrey Altman <jaltman@secure-endpoints.com>
Tested-by: Jeffrey Altman <jaltman@secure-endpoints.com>

8 years agobozo: retry start after error stops
Michael Meffie [Thu, 29 Sep 2011 18:44:11 +0000]
bozo: retry start after error stops

After a bnode is stopped because of two many consecutive exits
delay for some time and attempt to start the bnode again. Countine
to retry on each error stop, doubling the delay for each retry
attempt until a maxium number of attempts.

Change-Id: Ib6a4935d09c70c69de87f65717562bd3dcde761b
Reviewed-on: http://gerrit.openafs.org/5534
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Derrick Brashear <shadow@dementix.org>

8 years agobozo: preserve all options over restart
Michael Meffie [Fri, 30 Sep 2011 16:22:27 +0000]
bozo: preserve all options over restart

On unix, save all the bosserver command-line options and reuse
them on bosserver restarts. On Windows, the SCM integrator saves
the argument list, just use them.

Change-Id: Ib54d1b0c9430946cce666d09f5ed923016d5ac8b
Reviewed-on: http://gerrit.openafs.org/5532
Reviewed-by: Derrick Brashear <shadow@dementix.org>
Tested-by: Derrick Brashear <shadow@dementix.org>

8 years agovolser: Do not reset copyDate in ReClone
Andrew Deason [Thu, 3 Feb 2011 22:11:38 +0000]
volser: Do not reset copyDate in ReClone

When we ReClone in the volserver, do not reset the clone's copyDate to
the current time. If we retain the copyDate between ReClone
operations, then we can know when the clone was first created (and
thus makes local RO clones more consistent with remote RO sites).

Change-Id: Ic76862c1a03ee3cafaf199f414fabc90e3b058d2
Reviewed-on: http://gerrit.openafs.org/3892
Reviewed-by: Derrick Brashear <shadow@dementix.org>
Tested-by: BuildBot <buildbot@rampaginggeek.com>

8 years agoutil: simplify thread-name interface
Garrett Wollman [Sat, 30 Jul 2011 01:33:10 +0000]
util: simplify thread-name interface

It appears that we don't actually need an interface to set the name
of an arbitrary thread (which Mac OS can't do), so remove the
afs_pthread_setname() interface and promote afs_pthread_setname_self()
to the status of primary.

Change-Id: I2d915d8165dac9ccfe0cb99630db657cb1473389
Reviewed-on: http://gerrit.openafs.org/5121
Reviewed-by: Derrick Brashear <shadow@dementix.org>
Tested-by: BuildBot <buildbot@rampaginggeek.com>

8 years agoWindows: AFSRDFSProvider stack overrun
Jeffrey Altman [Wed, 14 Dec 2011 04:28:15 +0000]
Windows: AFSRDFSProvider stack overrun

StringCchXXX functions take the number of characters not
the number of bytes.   Use StringCbXXXX functions whenever the
buffer size is being specified.

Check return codes from StringXXXXXX functions and return errors
instead of blindly continuing with a truncated string.

Allocate a larger buffer for substitution strings since they
need to handle the device path plus the target path.

FIXES 130392

Change-Id: I62ca980d145d6fef8cf771c26cd634ce1dd55b91
Reviewed-on: http://gerrit.openafs.org/6248
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Jeffrey Altman <jaltman@secure-endpoints.com>
Tested-by: Jeffrey Altman <jaltman@secure-endpoints.com>

8 years agovos: fix code to not triple-negate
Derrick Brashear [Tue, 13 Dec 2011 17:19:48 +0000]
vos: fix code to not triple-negate

!!! is !. just write it that way.

Change-Id: I8e788177280c4a1d78cedaffd144a5c4ecba28f2
Reviewed-on: http://gerrit.openafs.org/6252
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Derrick Brashear <shadow@dementix.org>

8 years agobuild tsalvaged, tvolser, and dvolser targets on *nbsd*
Jonathan A. Kollasch [Tue, 11 Oct 2011 17:33:19 +0000]
build tsalvaged, tvolser, and dvolser targets on *nbsd*

Change-Id: Idb744f57ab92ba2d9af4d7d9ca7c800b3ee880d2
Reviewed-on: http://gerrit.openafs.org/5595
Reviewed-by: Derrick Brashear <shadow@dementix.org>
Tested-by: Derrick Brashear <shadow@dementix.org>

8 years agovolscan: print vnode metadata information
Michael Meffie [Tue, 26 Jul 2011 13:18:44 +0000]
volscan: print vnode metadata information

volscan program to print vnode meta-data in a grep/awk/perl friendly
format. Optionally, find the paths of each vnode relative to the volume
root.  Access control list data can be reported, and are listed as one
access entry per line. Mount point information can be shown to which
volumes are mounted from given volumes.

The path lookup code originally written by Tom Keiser.

Change-Id: I743e1a33d9e6076e4f1b1b2cc462960a94e3763b
Reviewed-on: http://gerrit.openafs.org/5102
Reviewed-by: Derrick Brashear <shadow@dementix.org>
Tested-by: Derrick Brashear <shadow@dementix.org>