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  1. 10 8月, 2009 7 次提交
    • C
      SUNRPC: Provide functions for managing universal addresses · a02d6926
      由 Chuck Lever 提交于 
      Introduce a set of functions in the kernel's RPC implementation for
converting between a socket address and either a standard
presentation address string or an RPC universal address.

The universal address functions will be used to encode and decode
RPCB_FOO and NFSv4 SETCLIENTID arguments.  The other functions are
part of a previous promise to deliver shared functions that can be
used by upper-layer protocols to display and manipulate IP
addresses.

The kernel's current address printf formatters were designed
specifically for kernel to user-space APIs that require a particular
string format for socket addresses, thus are somewhat limited for the
purposes of sunrpc.ko.  The formatter for IPv6 addresses, %pI6, does
not support short-handing or scope IDs.  Also, these printf formatters
are unique per address family, so a separate formatter string is
required for printing AF_INET and AF_INET6 addresses.
Signed-off-by: NChuck Lever <chuck.lever@oracle.com>
Signed-off-by: NTrond Myklebust <Trond.Myklebust@netapp.com>
      a02d6926
    • C
      SUNRPC: Move XDR data type size macros · 0b10bf5e
      由 Chuck Lever 提交于 
      Clean up: To make subsequent patches cleaner, move the XDR data type
size macros to the top of the file (similar to nfs4xdr.c) first.
Signed-off-by: NChuck Lever <chuck.lever@oracle.com>
Signed-off-by: NTrond Myklebust <Trond.Myklebust@netapp.com>
      0b10bf5e
    • C
      SUNRPC: Clean up RPCBIND_MAXUADDRLEN definitions · 169026a6
      由 Chuck Lever 提交于 
      Clean up: Replace the single-integer definition of RPCBIND_MAXUADDRLEN
with a definition that is based on previously defined address string
sizes, and document the way this maximum is calculated.  Also provide
a separate macro for the size of the port number extension.
Signed-off-by: NChuck Lever <chuck.lever@oracle.com>
Signed-off-by: NTrond Myklebust <Trond.Myklebust@netapp.com>
      169026a6
    • C
      NFS: Use the authentication flavor list returned by mountd · ec88f28d
      由 Chuck Lever 提交于 
      Commit a14017db added support in the kernel's NFS mount client to
decode the authentication flavor list returned by mountd.

The NFS client can now use this list to determine whether the
authentication flavor requested by the user is actually supported
by the server.

Note we don't actually negotiate the security flavor if none was
specified by the user.  Instead, we try to use AUTH_SYS, and fail if
the server does not support it.  This prevents us from negotiating
an inappropriate security flavor (some servers list AUTH_NULL first).

If the server does not support AUTH_SYS, the user must provide an
appropriate security flavor by specifying the "sec=" mount option.
Signed-off-by: NChuck Lever <chuck.lever@oracle.com>
Signed-off-by: NTrond Myklebust <Trond.Myklebust@netapp.com>
      ec88f28d
    • C
      NFS: Fix auth flavor len accounting · 059f90b3
      由 Chuck Lever 提交于 
      Previous logic in the NFS mount parsing code path assumed
auth_flavor_len was set to zero for simple authentication flavors
(like AUTH_UNIX), and 1 for compound flavors (like AUTH_GSS).

At some earlier point (maybe even before the option parsers were
merged?) specific checks for auth_flavor_len being zero were removed
from the functions that validate the mount option that sets the mount
point's authentication flavor.

Since we are populating an array for authentication flavors, the
auth_flavor_len should always be set to the number of flavors.  Let's
eliminate some cleverness here, and prepare for new logic that needs
to know the number of flavors in the auth_flavors[] array.

(auth_flavors[] is an array because at some point we want to allow a
list of acceptable authentication flavors to be specified via the sec=
mount option.  For now it remains a single element array).
Signed-off-by: NChuck Lever <chuck.lever@oracle.com>
Signed-off-by: NTrond Myklebust <Trond.Myklebust@netapp.com>
      059f90b3
    • C
      NFS: Add ability to send MOUNTPROC_UMNT to the kernel's mountd client · 0b524123
      由 Chuck Lever 提交于 
      After certain failure modes of an NFS mount, an NFS client should send
a MOUNTPROC_UMNT request to remove the just-added mount entry from the
server's mount table.  While no-one should rely on the accuracy of the
server's mount table, sending a UMNT is simply being a good internet
neighbor.

Since NFS mount processing is handled in the kernel now, we will need
a function in the kernel's mountd client that can post a MOUNTRPC_UMNT
request, in order to handle these failure modes.
Signed-off-by: NChuck Lever <chuck.lever@oracle.com>
Signed-off-by: NTrond Myklebust <Trond.Myklebust@netapp.com>
      0b524123
    • C
      NFS: Fix up new minorversion= option · f3f4f4ed
      由 Chuck Lever 提交于 
      The new minorversion= mount option (commit 3fd5be9e) was merged at
the same time as the recent sloppy parser fixes (commit a5a16bae),
so minorversion= still uses the old value parsing logic.

If the minorversion= option specifies a bogus value, it should fail
with "bad value" not "bad option."
Signed-off-by: NChuck Lever <chuck.lever@oracle.com>
Signed-off-by: NTrond Myklebust <Trond.Myklebust@netapp.com>
      f3f4f4ed
  3. 08 8月, 2009 33 次提交