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/* SPDX-License-Identifier: GPL-2.0 */
/*
* Copyright (c) 2024 Oracle and/or its affiliates.
*
* This header defines XDR data type primitives specified in
* Section 4 of RFC 4506, used by RPC programs implemented
* in the Linux kernel.
*
* A generated definition can also embed a struct xdr_buf, which
* carries a page-resident payload captured by reference, so this
* header pulls in the kernel's XDR types as well.
*/
#ifndef _SUNRPC_XDRGEN__DEFS_H_
#define _SUNRPC_XDRGEN__DEFS_H_
#include <linux/sunrpc/xdr.h>
#define TRUE (true)
#define FALSE (false)
typedef struct {
u32 len;
unsigned char *data;
} string;
typedef struct {
u32 len;
u8 *data;
} opaque;
/*
* Cursor a hook-driven aggregate codec hands to its begin/item/end
* hooks, one element at a time, in place of a materialized C array.
* The generated framing owns it. @xdr is the RPC layer's stream and
* @ctx its xdrgen_ctx, the svc_rqst on the server. @index is the
* current element; @member_id selects among a type's marked members.
* For a counted array @count is the wire length: a decoder fills it
* before the begin hook runs, an encoder's begin hook sets it. The
* hook contract is under "Pragma aggregate" in
* tools/net/sunrpc/xdrgen/README.
*
* An optional-data list ("type *name") carries no count. Its encoder
* pulls elements until the item hook returns false. False ends the
* list rather than failing the encode: the framing writes the
* value-follows terminator, so a producer that stops early leaves a
* valid truncated list on the wire. A producer that stops for a
* mid-list error records it in the application state @ctx reaches,
* and either returns false from the end hook, which fails the
* encode, or reports it in the procedure status.
*/
struct xdrgen_aggregate_cursor {
struct xdr_stream *xdr;
u32 index;
u32 count;
unsigned int member_id;
void *ctx;
};
#define XDR_void (0)
#define XDR_bool (1)
#define XDR_short (1)
#define XDR_unsigned_short (1)
#define XDR_int (1)
#define XDR_unsigned_int (1)
#define XDR_long (1)
#define XDR_unsigned_long (1)
#define XDR_hyper (2)
#define XDR_unsigned_hyper (2)
#endif /* _SUNRPC_XDRGEN__DEFS_H_ */
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