drivers/staging/brcm80211/include/bcm_xdr.h

   1 /*
   2  * Copyright (c) 2010 Broadcom Corporation
   3  *
   4  * Permission to use, copy, modify, and/or distribute this software for any
   5  * purpose with or without fee is hereby granted, provided that the above
   6  * copyright notice and this permission notice appear in all copies.
   7  *
   8  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
   9  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  10  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
  11  * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  12  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
  13  * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
  14  * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  15  */
  16
  17 #ifndef _BCM_XDR_H
  18 #define _BCM_XDR_H
  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         u8 *buf;                /* pointer to current position in origbuf */
  29         uint size;              /* current (residual) size in bytes */
  30         u8 *origbuf;            /* unmodified pointer to orignal buffer */
  31         uint origsize;          /* unmodified orignal buffer size in bytes */
  32 } bcm_xdr_buf_t;
  33
  34 void bcm_xdr_buf_init(bcm_xdr_buf_t *b, void *buf, size_t len);
  35
  36 int bcm_xdr_pack_uint32(bcm_xdr_buf_t *b, uint32 val);
  37 int bcm_xdr_unpack_uint32(bcm_xdr_buf_t *b, uint32 *pval);
  38 int bcm_xdr_pack_int32(bcm_xdr_buf_t *b, int32 val);
  39 int bcm_xdr_unpack_int32(bcm_xdr_buf_t *b, int32 *pval);
  40 int bcm_xdr_pack_s8(bcm_xdr_buf_t *b, s8 val);
  41 int bcm_xdr_unpack_s8(bcm_xdr_buf_t *b, s8 *pval);
  42 int bcm_xdr_pack_opaque(bcm_xdr_buf_t *b, uint len, void *data);
  43 int bcm_xdr_unpack_opaque(bcm_xdr_buf_t *b, uint len, void **pdata);
  44 int bcm_xdr_unpack_opaque_cpy(bcm_xdr_buf_t *b, uint len, void *data);
  45 int bcm_xdr_pack_opaque_varlen(bcm_xdr_buf_t *b, uint len, void *data);
  46 int bcm_xdr_unpack_opaque_varlen(bcm_xdr_buf_t *b, uint *plen, void **pdata);
  47 int bcm_xdr_pack_string(bcm_xdr_buf_t *b, char *str);
  48 int bcm_xdr_unpack_string(bcm_xdr_buf_t *b, uint *plen, char **pstr);
  49
  50 int bcm_xdr_pack_u8_vec(bcm_xdr_buf_t *, u8 *vec, uint32 elems);
  51 int bcm_xdr_unpack_u8_vec(bcm_xdr_buf_t *, u8 *vec, uint32 elems);
  52 int bcm_xdr_pack_uint16_vec(bcm_xdr_buf_t *b, uint len, void *vec);
  53 int bcm_xdr_unpack_uint16_vec(bcm_xdr_buf_t *b, uint len, void *vec);
  54 int bcm_xdr_pack_uint32_vec(bcm_xdr_buf_t *b, uint len, void *vec);
  55 int bcm_xdr_unpack_uint32_vec(bcm_xdr_buf_t *b, uint len, void *vec);
  56
  57 int bcm_xdr_pack_opaque_raw(bcm_xdr_buf_t *b, uint len, void *data);
  58 int bcm_xdr_pack_opaque_pad(bcm_xdr_buf_t *b);
  59
  60 #endif                          /* _BCM_XDR_H */