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NFSD: Return word2 bitmask if setting security label in OPEN/CREATE 

Security label can be set in OPEN/CREATE request, nfsd should set
the bitmask in word2 if setting success.

Signed-off-by: Kinglong Mee <kinglongmee@gmail.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
This commit is contained in:
Kinglong Mee 2015-07-30 21:55:30 +08:00 committed by J. Bruce Fields
parent ead8fb8c24
commit 75976de655
1 changed files with 56 additions and 39 deletions
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95
fs/nfsd/nfs4xdr.c
View File

@ -2226,6 +2226,39 @@ static int get_parent_attributes(struct svc_export *exp, struct kstat *stat)
return err;
}
static __be32
nfsd4_encode_bitmap(struct xdr_stream *xdr, u32 bmval0, u32 bmval1, u32 bmval2)
{
__be32 *p;
if (bmval2) {
p = xdr_reserve_space(xdr, 16);
if (!p)
goto out_resource;
*p++ = cpu_to_be32(3);
*p++ = cpu_to_be32(bmval0);
*p++ = cpu_to_be32(bmval1);
*p++ = cpu_to_be32(bmval2);
} else if (bmval1) {
p = xdr_reserve_space(xdr, 12);
if (!p)
goto out_resource;
*p++ = cpu_to_be32(2);
*p++ = cpu_to_be32(bmval0);
*p++ = cpu_to_be32(bmval1);
} else {
p = xdr_reserve_space(xdr, 8);
if (!p)
goto out_resource;
*p++ = cpu_to_be32(1);
*p++ = cpu_to_be32(bmval0);
}
return 0;
out_resource:
return nfserr_resource;
}
/*
* Note: @fhp can be NULL; in this case, we might have to compose the filehandle
* ourselves.
@ -2322,28 +2355,9 @@ nfsd4_encode_fattr(struct xdr_stream *xdr, struct svc_fh *fhp,
}
#endif /* CONFIG_NFSD_V4_SECURITY_LABEL */
if (bmval2) {
p = xdr_reserve_space(xdr, 16);
if (!p)
goto out_resource;
*p++ = cpu_to_be32(3);
*p++ = cpu_to_be32(bmval0);
*p++ = cpu_to_be32(bmval1);
*p++ = cpu_to_be32(bmval2);
} else if (bmval1) {
p = xdr_reserve_space(xdr, 12);
if (!p)
goto out_resource;
*p++ = cpu_to_be32(2);
*p++ = cpu_to_be32(bmval0);
*p++ = cpu_to_be32(bmval1);
} else {
p = xdr_reserve_space(xdr, 8);
if (!p)
goto out_resource;
*p++ = cpu_to_be32(1);
*p++ = cpu_to_be32(bmval0);
}
status = nfsd4_encode_bitmap(xdr, bmval0, bmval1, bmval2);
if (status)
goto out;
attrlen_offset = xdr->buf->len;
p = xdr_reserve_space(xdr, 4);
@ -2736,13 +2750,11 @@ out_acl:
}
#endif /* CONFIG_NFSD_PNFS */
if (bmval2 & FATTR4_WORD2_SUPPATTR_EXCLCREAT) {
p = xdr_reserve_space(xdr, 16);
if (!p)
goto out_resource;
*p++ = cpu_to_be32(3);
*p++ = cpu_to_be32(NFSD_SUPPATTR_EXCLCREAT_WORD0);
*p++ = cpu_to_be32(NFSD_SUPPATTR_EXCLCREAT_WORD1);
*p++ = cpu_to_be32(NFSD_SUPPATTR_EXCLCREAT_WORD2);
status = nfsd4_encode_bitmap(xdr, NFSD_SUPPATTR_EXCLCREAT_WORD0,
NFSD_SUPPATTR_EXCLCREAT_WORD1,
NFSD_SUPPATTR_EXCLCREAT_WORD2);
if (status)
goto out;
}
if (bmval2 & FATTR4_WORD2_SECURITY_LABEL) {
@ -3069,13 +3081,12 @@ nfsd4_encode_create(struct nfsd4_compoundres *resp, __be32 nfserr, struct nfsd4_
__be32 *p;
if (!nfserr) {
p = xdr_reserve_space(xdr, 32);
p = xdr_reserve_space(xdr, 20);
if (!p)
return nfserr_resource;
p = encode_cinfo(p, &create->cr_cinfo);
*p++ = cpu_to_be32(2);
*p++ = cpu_to_be32(create->cr_bmval[0]);
*p++ = cpu_to_be32(create->cr_bmval[1]);
encode_cinfo(p, &create->cr_cinfo);
nfserr = nfsd4_encode_bitmap(xdr, create->cr_bmval[0],
create->cr_bmval[1], create->cr_bmval[2]);
}
return nfserr;
}
@ -3215,16 +3226,22 @@ nfsd4_encode_open(struct nfsd4_compoundres *resp, __be32 nfserr, struct nfsd4_op
nfserr = nfsd4_encode_stateid(xdr, &open->op_stateid);
if (nfserr)
goto out;
p = xdr_reserve_space(xdr, 40);
p = xdr_reserve_space(xdr, 24);
if (!p)
return nfserr_resource;
p = encode_cinfo(p, &open->op_cinfo);
*p++ = cpu_to_be32(open->op_rflags);
*p++ = cpu_to_be32(2);
*p++ = cpu_to_be32(open->op_bmval[0]);
*p++ = cpu_to_be32(open->op_bmval[1]);
*p++ = cpu_to_be32(open->op_delegate_type);
nfserr = nfsd4_encode_bitmap(xdr, open->op_bmval[0], open->op_bmval[1],
open->op_bmval[2]);
if (nfserr)
goto out;
p = xdr_reserve_space(xdr, 4);
if (!p)
return nfserr_resource;
*p++ = cpu_to_be32(open->op_delegate_type);
switch (open->op_delegate_type) {
case NFS4_OPEN_DELEGATE_NONE:
break;