1/*
2 * Utilites for XDR encode and decode of data
3 *
4 * Copyright (C) 2015, Broadcom Corporation
5 * All Rights Reserved.
6 *
7 * This is UNPUBLISHED PROPRIETARY SOURCE CODE of Broadcom Corporation;
8 * the contents of this file may not be disclosed to third parties, copied
9 * or duplicated in any form, in whole or in part, without the prior
10 * written permission of Broadcom Corporation.
11 *
12 * $Id: bcm_xdr.h 419467 2013-08-21 09:19:48Z $
13 */
14
15#ifndef _BCM_XDR_H
16#define _BCM_XDR_H
17
18#define XDR_PACK_OPAQUE_VAR_SZ(len) (sizeof(uint32) + ROUNDUP(len, sizeof(uint32)))
19
20/*
21 * bcm_xdr_buf_t
22 * Structure used for bookkeeping of a buffer being packed or unpacked.
23 * Keeps a current read/write pointer and size as well as
24 * the original buffer pointer and size.
25 *
26 */
27typedef struct {
28	uint8 *buf;	/* pointer to current position in origbuf */
29	uint size;	/* current (residual) size in bytes */
30	uint8 *origbuf;	/* unmodified pointer to orignal buffer */
31	uint origsize;	/* unmodified orignal buffer size in bytes */
32} bcm_xdr_buf_t;
33
34
35void bcm_xdr_buf_init(bcm_xdr_buf_t *b, void *buf, size_t len);
36
37int bcm_xdr_pack_uint32(bcm_xdr_buf_t *b, uint32 val);
38int bcm_xdr_unpack_uint32(bcm_xdr_buf_t *b, uint32 *pval);
39int bcm_xdr_pack_int32(bcm_xdr_buf_t *b, int32 val);
40int bcm_xdr_unpack_int32(bcm_xdr_buf_t *b, int32 *pval);
41int bcm_xdr_pack_int8(bcm_xdr_buf_t *b, int8 val);
42int bcm_xdr_unpack_int8(bcm_xdr_buf_t *b, int8 *pval);
43int bcm_xdr_pack_opaque(bcm_xdr_buf_t *b, uint len, const void *data);
44int bcm_xdr_unpack_opaque(bcm_xdr_buf_t *b, uint len, void **pdata);
45int bcm_xdr_unpack_opaque_cpy(bcm_xdr_buf_t *b, uint len, void *data);
46int bcm_xdr_pack_opaque_varlen(bcm_xdr_buf_t *b, uint len, const void *data);
47int bcm_xdr_unpack_opaque_varlen(bcm_xdr_buf_t *b, uint *plen, void **pdata);
48int bcm_xdr_pack_string(bcm_xdr_buf_t *b, char *str);
49int bcm_xdr_unpack_string(bcm_xdr_buf_t *b, uint *plen, char **pstr);
50
51int bcm_xdr_pack_uint8_vec(bcm_xdr_buf_t *, uint8 *vec, uint32 elems);
52int bcm_xdr_unpack_uint8_vec(bcm_xdr_buf_t *, uint8 *vec, uint32 elems);
53int bcm_xdr_pack_uint16_vec(bcm_xdr_buf_t *b, uint len, void *vec);
54int bcm_xdr_unpack_uint16_vec(bcm_xdr_buf_t *b, uint len, void *vec);
55int bcm_xdr_pack_uint32_vec(bcm_xdr_buf_t *b, uint len, void *vec);
56int bcm_xdr_unpack_uint32_vec(bcm_xdr_buf_t *b, uint len, void *vec);
57
58int bcm_xdr_pack_opaque_raw(bcm_xdr_buf_t *b, uint len, void *data);
59int bcm_xdr_pack_opaque_pad(bcm_xdr_buf_t *b);
60
61int bcm_xdr_opaque_resrv(bcm_xdr_buf_t *b, uint len, void **pdata);
62int bcm_xdr_opaque_resrv_varlen(bcm_xdr_buf_t *b, uint len, void **pdata);
63
64#endif /* _BCM_XDR_H */
65