NFSD: Add nfsd4_encode_fattr4_acl()

Refactor the encoder for FATTR4_ACL into a helper. In a subsequent
patch, this helper will be called from a bitmask loop.

Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
This commit is contained in:
Chuck Lever 2023-09-18 09:58:36 -04:00
parent 0207ee0818
commit 07455dc45d

View File

@ -3102,6 +3102,29 @@ static __be32 nfsd4_encode_fattr4_aclsupport(struct xdr_stream *xdr,
return nfsd4_encode_uint32_t(xdr, mask);
}
static __be32 nfsd4_encode_fattr4_acl(struct xdr_stream *xdr,
const struct nfsd4_fattr_args *args)
{
struct nfs4_acl *acl = args->acl;
struct nfs4_ace *ace;
__be32 status;
/* nfsace4<> */
if (!acl) {
if (xdr_stream_encode_u32(xdr, 0) != XDR_UNIT)
return nfserr_resource;
} else {
if (xdr_stream_encode_u32(xdr, acl->naces) != XDR_UNIT)
return nfserr_resource;
for (ace = acl->aces; ace < acl->aces + acl->naces; ace++) {
status = nfsd4_encode_nfsace4(xdr, args->rqstp, ace);
if (status != nfs_ok)
return status;
}
}
return nfs_ok;
}
/*
* Note: @fhp can be NULL; in this case, we might have to compose the filehandle
* ourselves.
@ -3291,28 +3314,10 @@ nfsd4_encode_fattr(struct xdr_stream *xdr, struct svc_fh *fhp,
goto out;
}
if (bmval0 & FATTR4_WORD0_ACL) {
struct nfs4_ace *ace;
if (args.acl == NULL) {
p = xdr_reserve_space(xdr, 4);
if (!p)
goto out_resource;
*p++ = cpu_to_be32(0);
goto out_acl;
}
p = xdr_reserve_space(xdr, 4);
if (!p)
goto out_resource;
*p++ = cpu_to_be32(args.acl->naces);
for (ace = args.acl->aces; ace < args.acl->aces + args.acl->naces; ace++) {
status = nfsd4_encode_nfsace4(xdr, args.rqstp, ace);
if (status != nfs_ok)
goto out;
}
status = nfsd4_encode_fattr4_acl(xdr, &args);
if (status)
goto out;
}
out_acl:
if (bmval0 & FATTR4_WORD0_ACLSUPPORT) {
status = nfsd4_encode_fattr4_aclsupport(xdr, &args);
if (status != nfs_ok)