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  1. 22 4月, 2015 1 次提交
  3. 04 2月, 2015 1 次提交
  5. 03 2月, 2015 2 次提交
    • C
      nfsd: implement pNFS operations · 9cf514cc
      由 Christoph Hellwig 提交于 
      Add support for the GETDEVICEINFO, LAYOUTGET, LAYOUTCOMMIT and
LAYOUTRETURN NFSv4.1 operations, as well as backing code to manage
outstanding layouts and devices.

Layout management is very straight forward, with a nfs4_layout_stateid
structure that extends nfs4_stid to manage layout stateids as the
top-level structure.  It is linked into the nfs4_file and nfs4_client
structures like the other stateids, and contains a linked list of
layouts that hang of the stateid.  The actual layout operations are
implemented in layout drivers that are not part of this commit, but
will be added later.

The worst part of this commit is the management of the pNFS device IDs,
which suffers from a specification that is not sanely implementable due
to the fact that the device-IDs are global and not bound to an export,
and have a small enough size so that we can't store the fsid portion of
a file handle, and must never be reused.  As we still do need perform all
export authentication and validation checks on a device ID passed to
GETDEVICEINFO we are caught between a rock and a hard place.  To work
around this issue we add a new hash that maps from a 64-bit integer to a
fsid so that we can look up the export to authenticate against it,
a 32-bit integer as a generation that we can bump when changing the device,
and a currently unused 32-bit integer that could be used in the future
to handle more than a single device per export.  Entries in this hash
table are never deleted as we can't reuse the ids anyway, and would have
a severe lifetime problem anyway as Linux export structures are temporary
structures that can go away under load.

Parts of the XDR data, structures and marshaling/unmarshaling code, as
well as many concepts are derived from the old pNFS server implementation
from Andy Adamson, Benny Halevy, Dean Hildebrand, Marc Eshel, Fred Isaman,
Mike Sager, Ricardo Labiaga and many others.
Signed-off-by: NChristoph Hellwig <hch@lst.de>
      9cf514cc
    • C
      nfs: add LAYOUT_TYPE_MAX enum value · 6cae0a46
      由 Christoph Hellwig 提交于 
      This gives us a nice upper bound for later use in nfѕd.
Signed-off-by: NChristoph Hellwig <hch@lst.de>
      6cae0a46
  7. 26 11月, 2014 2 次提交
  9. 01 10月, 2014 1 次提交
  11. 30 9月, 2014 2 次提交
  13. 29 8月, 2014 1 次提交
  15. 07 6月, 2014 1 次提交
  17. 20 11月, 2013 1 次提交
  19. 05 11月, 2013 2 次提交
  21. 31 10月, 2013 1 次提交
  23. 29 10月, 2013 1 次提交
  25. 09 6月, 2013 2 次提交
  27. 13 5月, 2013 1 次提交
  29. 13 2月, 2013 1 次提交
    • E
      nfsd: Handle kuids and kgids in the nfs4acl to posix_acl conversion · ab8e4aee
      由 Eric W. Biederman 提交于 
      In struct nfs4_ace remove the member who and replace it with an
anonymous union holding who_uid and who_gid.  Allowing typesafe
storage uids and gids.

Add a helper pace_gt for sorting posix_acl_entries.

In struct posix_user_ace_state to replace uid with a union
of kuid_t uid and kgid_t gid.

Remove all initializations of the deprecated posic_acl_entry
e_id field.  Which is not present when user namespaces are enabled.

Split find_uid into two functions find_uid and find_gid that work
in a typesafe manner.

In nfs4xdr update nfsd4_encode_fattr to deal with the changes
in struct nfs4_ace.

Rewrite nfsd4_encode_name to take a kuid_t and a kgid_t instead
of a generic id and flag if it is a group or a uid.  Replace
the group flag with a test for a valid gid.

Modify nfsd4_encode_user to take a kuid_t and call the modifed
nfsd4_encode_name.

Modify nfsd4_encode_group to take a kgid_t and call the modified
nfsd4_encode_name.

Modify nfsd4_encode_aclname to take an ace instead of taking the
fields of an ace broken out.  This allows it to detect if the ace is
for a user or a group and to pass the appropriate value while still
being typesafe.

Cc: "J. Bruce Fields" <bfields@fieldses.org>
Cc: Trond Myklebust <Trond.Myklebust@netapp.com>
Signed-off-by: N"Eric W. Biederman" <ebiederm@xmission.com>
      ab8e4aee
  31. 13 10月, 2012 1 次提交
  33. 27 5月, 2012 1 次提交
  35. 26 5月, 2012 1 次提交
  37. 25 5月, 2012 2 次提交
  39. 06 3月, 2012 1 次提交
  41. 18 2月, 2012 1 次提交
  43. 19 10月, 2011 1 次提交
  45. 28 8月, 2011 1 次提交
  47. 01 8月, 2011 1 次提交
  49. 13 7月, 2011 3 次提交
  51. 30 5月, 2011 1 次提交
  53. 30 4月, 2011 1 次提交
  55. 31 3月, 2011 1 次提交
  57. 25 3月, 2011 1 次提交
  59. 24 3月, 2011 1 次提交
  61. 12 1月, 2011 2 次提交