release/src-rt-6.x.4708/include/bcm_xdr.h

   1 /*
   2  * Utilites for XDR encode and decode of data
   3  *
   4  * Copyright (C) 2012, 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   7  * This is UNPUBLISHED PROPRIETARY SOURCE CODE of Broadcom Corporation;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 318785 2012-03-05 19:15:48Z $
  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  */
  27 typedef 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
  35 void bcm_xdr_buf_init(bcm_xdr_buf_t *b, void *buf, size_t len);
  36
  37 int bcm_xdr_pack_uint32(bcm_xdr_buf_t *b, uint32 val);
  38 int bcm_xdr_unpack_uint32(bcm_xdr_buf_t *b, uint32 *pval);
  39 int bcm_xdr_pack_int32(bcm_xdr_buf_t *b, int32 val);
  40 int bcm_xdr_unpack_int32(bcm_xdr_buf_t *b, int32 *pval);
  41 int bcm_xdr_pack_int8(bcm_xdr_buf_t *b, int8 val);
  42 int bcm_xdr_unpack_int8(bcm_xdr_buf_t *b, int8 *pval);
  43 int bcm_xdr_pack_opaque(bcm_xdr_buf_t *b, uint len, const void *data);
  44 int bcm_xdr_unpack_opaque(bcm_xdr_buf_t *b, uint len, void **pdata);
  45 int bcm_xdr_unpack_opaque_cpy(bcm_xdr_buf_t *b, uint len, void *data);
  46 int bcm_xdr_pack_opaque_varlen(bcm_xdr_buf_t *b, uint len, const void *data);
  47 int bcm_xdr_unpack_opaque_varlen(bcm_xdr_buf_t *b, uint *plen, void **pdata);
  48 int bcm_xdr_pack_string(bcm_xdr_buf_t *b, char *str);
  49 int bcm_xdr_unpack_string(bcm_xdr_buf_t *b, uint *plen, char **pstr);
  50
  51 int bcm_xdr_pack_uint8_vec(bcm_xdr_buf_t *, uint8 *vec, uint32 elems);
  52 int bcm_xdr_unpack_uint8_vec(bcm_xdr_buf_t *, uint8 *vec, uint32 elems);
  53 int bcm_xdr_pack_uint16_vec(bcm_xdr_buf_t *b, uint len, void *vec);
  54 int bcm_xdr_unpack_uint16_vec(bcm_xdr_buf_t *b, uint len, void *vec);
  55 int bcm_xdr_pack_uint32_vec(bcm_xdr_buf_t *b, uint len, void *vec);
  56 int bcm_xdr_unpack_uint32_vec(bcm_xdr_buf_t *b, uint len, void *vec);
  57
  58 int bcm_xdr_pack_opaque_raw(bcm_xdr_buf_t *b, uint len, void *data);
  59 int bcm_xdr_pack_opaque_pad(bcm_xdr_buf_t *b);
  60
  61 int bcm_xdr_opaque_resrv(bcm_xdr_buf_t *b, uint len, void **pdata);
  62 int bcm_xdr_opaque_resrv_varlen(bcm_xdr_buf_t *b, uint len, void **pdata);
  63
  64 #endif /* _BCM_XDR_H */