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NFSD: Add a utility function for encoding sessionid4 objects

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There is more than one NFSv4 operation that needs to encode a
sessionid4, so extract that data type into a separate helper.

Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
This commit is contained in:
Chuck Lever 2023-10-02 10:51:17 -04:00
parent 841735b3fd
commit 65baa60953
1 changed files with 16 additions and 9 deletions
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25
fs/nfsd/nfs4xdr.c
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@ -3885,6 +3885,14 @@ nfsd4_encode_stateid4(struct xdr_stream *xdr, const stateid_t *sid)
return nfs_ok; return nfs_ok;
} }
static __be32
nfsd4_encode_sessionid4(struct xdr_stream *xdr,
const struct nfs4_sessionid *sessionid)
{
return nfsd4_encode_opaque_fixed(xdr, sessionid->data,
NFS4_MAX_SESSIONID_LEN);
}
static __be32 static __be32
nfsd4_encode_access(struct nfsd4_compoundres *resp, __be32 nfserr, nfsd4_encode_access(struct nfsd4_compoundres *resp, __be32 nfserr,
union nfsd4_op_u *u) union nfsd4_op_u *u)
@ -3906,17 +3914,16 @@ static __be32 nfsd4_encode_bind_conn_to_session(struct nfsd4_compoundres *resp,
{ {
struct nfsd4_bind_conn_to_session *bcts = &u->bind_conn_to_session; struct nfsd4_bind_conn_to_session *bcts = &u->bind_conn_to_session;
struct xdr_stream *xdr = resp->xdr; struct xdr_stream *xdr = resp->xdr;
__be32 *p;
p = xdr_reserve_space(xdr, NFS4_MAX_SESSIONID_LEN + 8); /* bctsr_sessid */
if (!p) nfserr = nfsd4_encode_sessionid4(xdr, &bcts->sessionid);
if (nfserr != nfs_ok)
return nfserr;
/* bctsr_dir */
if (xdr_stream_encode_u32(xdr, bcts->dir) != XDR_UNIT)
return nfserr_resource; return nfserr_resource;
p = xdr_encode_opaque_fixed(p, bcts->sessionid.data, /* bctsr_use_conn_in_rdma_mode */
NFS4_MAX_SESSIONID_LEN); return nfsd4_encode_bool(xdr, false);
*p++ = cpu_to_be32(bcts->dir);
/* Upshifting from TCP to RDMA is not supported */
*p++ = cpu_to_be32(0);
return 0;
} }
static __be32 static __be32