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[ Upstream commit 523ec6ed6fb80fd1537d748a06bffd060a8b3235 ]
Refactor for clarity.
Also, remove a stale comment. Commit ed94164398c9 ("nfsd: implement
machine credential support for some operations") added support for
SP4_MACH_CRED, so state_protect_a is no longer completely ignored.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 2548aa784d760567c2a77cbd8b7c55b211167c37 ]
Refactor for clarity and de-duplication of code.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 571e0451c4de0a545960ffaea16d969931afc563 ]
A dedicated sessionid4 decoder is introduced that will be used by
other operation decoders in subsequent patches.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 1708e50b0145f393acbec9e319bdf0e33f765d25 ]
Refactor for clarity.
Note that op_fname is the only instance of an NFSv4 filename stored
in a struct xdr_netobj. Convert it to a u32/char * pair so that the
new nfsd4_decode_filename() helper can be used.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 796dd1c6b680959ac968b52aa507911b288b1749 ]
This helper will be used to simplify decoders in subsequent
patches.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 144e82694092ff80b5e64749d6822cd8947587f2 ]
These helpers will also be used to simplify decoders in subsequent
patches.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 5dcbfabb676b2b6d97767209cf707eb463ca232a ]
Enable nfsd4_decode_opaque() to be used in more decoders, and
replace the READ* macros in nfsd4_decode_opaque().
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 000dfa18b3df9c62df5f768f9187cf1a94ded71d ]
A dedicated decoder for component4 is introduced here, which will be
used by other operation decoders in subsequent patches.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit d1c263a031e876ac3ca5223c728e4d98ed50b3c0 ]
Let's be more careful to avoid overrunning the memory that backs
the bitmap array. This requires updating the synopsis of
nfsd4_decode_fattr().
Bruce points out that a server needs to be careful to return nfs_ok
when a client presents bitmap bits the server doesn't support. This
includes bits in bitmap words the server might not yet support.
The current READ* based implementation is good about that, but that
requirement hasn't been documented.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit c941a96823cf52e742606b486b81ab346bf111c9 ]
Refactor for clarity and to move infrequently-used code out of line.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 081d53fe0b43c47c36d1832b759bf14edde9cdbb ]
Because the fattr4 is now managed in an xdr_stream, all that is
needed is to store the initial position of the stream before
decoding the attribute list. Then the actual length of the list
is computed using the final stream position, after decoding is
complete.
No behavior change is expected.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
