Commit e21ad4a9 authored by Trond Myklebust's avatar Trond Myklebust Committed by Greg Kroah-Hartman

nfsd: Fix up the "supattr_exclcreat" attributes

commit b26b78cb upstream.

If an NFSv4 client asks us for the supattr_exclcreat, then we must
not return attributes that are unsupported by this minor version.
Signed-off-by: default avatarTrond Myklebust <trond.myklebust@primarydata.com>
Fixes: 75976de6 ("NFSD: Return word2 bitmask if setting security..,")
Signed-off-by: default avatarJ. Bruce Fields <bfields@redhat.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 6a9b7224
......@@ -2753,9 +2753,16 @@ nfsd4_encode_fattr(struct xdr_stream *xdr, struct svc_fh *fhp,
}
#endif /* CONFIG_NFSD_PNFS */
if (bmval2 & FATTR4_WORD2_SUPPATTR_EXCLCREAT) {
status = nfsd4_encode_bitmap(xdr, NFSD_SUPPATTR_EXCLCREAT_WORD0,
NFSD_SUPPATTR_EXCLCREAT_WORD1,
NFSD_SUPPATTR_EXCLCREAT_WORD2);
u32 supp[3];
supp[0] = nfsd_suppattrs0(minorversion);
supp[1] = nfsd_suppattrs1(minorversion);
supp[2] = nfsd_suppattrs2(minorversion);
supp[0] &= NFSD_SUPPATTR_EXCLCREAT_WORD0;
supp[1] &= NFSD_SUPPATTR_EXCLCREAT_WORD1;
supp[2] &= NFSD_SUPPATTR_EXCLCREAT_WORD2;
status = nfsd4_encode_bitmap(xdr, supp[0], supp[1], supp[2]);
if (status)
goto out;
}
......
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