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    NFSv4: Add ACCESS operation to OPEN compound · 6168f62c
    Weston Andros Adamson 提交于
    The OPEN operation has no way to differentiate an open for read and an
    open for execution - both look like read to the server. This allowed
    users to read files that didn't have READ access but did have EXEC access,
    which is obviously wrong.
    
    This patch adds an ACCESS call to the OPEN compound to handle the
    difference between OPENs for reading and execution.  Since we're going
    through the trouble of calling ACCESS, we check all possible access bits
    and cache the results hopefully avoiding an ACCESS call in the future.
    Signed-off-by: NWeston Andros Adamson <dros@netapp.com>
    Signed-off-by: NTrond Myklebust <Trond.Myklebust@netapp.com>
    6168f62c
nfs4xdr.c 189.3 KB