linux.git/fs/nfs/idmap.c, branch master

NFS: Rename idmap.c to nfs4idmap.c

2015-04-23T19:16:14+00:00

I added the nfs4 prefix to make it obvious that this file is built into
the NFS v4 module, and not the generic client.

Signed-off-by: Anna Schumaker 
Signed-off-by: Trond Myklebust

NFS: Move nfs_idmap.h into fs/nfs/

2015-04-23T19:16:14+00:00

This file is only used internally to the NFS v4 module, so it doesn't
need to be in the global include path.  I also renamed it from
nfs_idmap.h to nfs4idmap.h to emphasize that it's an NFSv4-only include
file.

Signed-off-by: Anna Schumaker 
Signed-off-by: Trond Myklebust

pnfs/flexfiles: Add the FlexFile Layout Driver

2015-02-03T19:06:52+00:00

The flexfile layout is a new layout that extends the
file layout. It is currently being drafted as a specification at
https://datatracker.ietf.org/doc/draft-ietf-nfsv4-layout-types/

Signed-off-by: Weston Andros Adamson 
Signed-off-by: Tom Haynes 
Signed-off-by: Tao Peng

KEYS: Remove key_type::match in favour of overriding default by match_preparse

2014-09-16T16:36:06+00:00

A previous patch added a ->match_preparse() method to the key type.  This is
allowed to override the function called by the iteration algorithm.
Therefore, we can just set a default that simply checks for an exact match of
the key description with the original criterion data and allow match_preparse
to override it as needed.

The key_type::match op is then redundant and can be removed, as can the
user_match() function.

Signed-off-by: David Howells 
Acked-by: Vivek Goyal

Merge branch 'keys-fixes' into keys-next

2014-07-22T20:55:45+00:00

Signed-off-by: David Howells

KEYS: user: Use key preparsing

2014-07-22T20:46:17+00:00

Make use of key preparsing in user-defined and logon keys so that quota size
determination can take place prior to keyring locking when a key is being
added.

Also the idmapper key types need to change to match as they use the
user-defined key type routines.

Signed-off-by: David Howells 
Acked-by: Steve Dickson 
Acked-by: Jeff Layton

KEYS: Allow special keys (eg. DNS results) to be invalidated by CAP_SYS_ADMIN

2014-07-17T19:45:08+00:00

Special kernel keys, such as those used to hold DNS results for AFS, CIFS and
NFS and those used to hold idmapper results for NFS, used to be
'invalidateable' with key_revoke().  However, since the default permissions for
keys were reduced:

	Commit: 96b5c8fea6c0861621051290d705ec2e971963f1
	KEYS: Reduce initial permissions on keys

it has become impossible to do this.

Add a key flag (KEY_FLAG_ROOT_CAN_INVAL) that will permit a key to be
invalidated by root.  This should not be used for system keyrings as the
garbage collector will try and remove any invalidate key.  For system keyrings,
KEY_FLAG_ROOT_CAN_CLEAR can be used instead.

After this, from userspace, keyctl_invalidate() and "keyctl invalidate" can be
used by any possessor of CAP_SYS_ADMIN (typically root) to invalidate DNS and
idmapper keys.  Invalidated keys are immediately garbage collected and will be
immediately rerequested if needed again.

Signed-off-by: David Howells 
Tested-by: Steve Dickson

NFSv4: Convert idmapper to use the new framework for pipefs dentries

2013-09-01T15:12:42+00:00

Signed-off-by: Trond Myklebust

NFSv4: Fix a potentially Oopsable condition in __nfs_idmap_unregister

2013-08-30T13:19:38+00:00

Ensure that __nfs_idmap_unregister can be called twice without
consequences.

Signed-off-by: Trond Myklebust

NFSv4: Add tracepoints for debugging the idmapper

2013-08-22T12:58:25+00:00

Add tracepoints to help debug uid/gid mappings to username/group.

Signed-off-by: Trond Myklebust