usr/src/uts/common/inet/common.h

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License (the "License").
   6  * You may not use this file except in compliance with the License.
   7  *
   8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9  * or http://www.opensolaris.org/os/licensing.
  10  * See the License for the specific language governing permissions
  11  * and limitations under the License.
  12  *
  13  * When distributing Covered Code, include this CDDL HEADER in each
  14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15  * If applicable, add the following below this CDDL HEADER, with the
  16  * fields enclosed by brackets "[]" replaced with your own identifying
  17  * information: Portions Copyright [yyyy] [name of copyright owner]
  18  *
  19  * CDDL HEADER END
  20  */
  21 /*
  22  * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
  23  * Use is subject to license terms.
  24  */
  25 /* Copyright (c) 1990 Mentat Inc. */
  26
  27 #ifndef _INET_COMMON_H
  28 #define _INET_COMMON_H
  29
  30 #pragma ident   "%Z%%M% %I%     %E% SMI"
  31
  32 /*
  33  * WARNING: This file contains implementation-specific constants, typedefs
  34  *          and macros which may change from release to release.
  35  */
  36
  37 #ifdef  __cplusplus
  38 extern "C" {
  39 #endif
  40
  41 #include <sys/inttypes.h>
  42 #include <sys/sysmacros.h>
  43 #include <sys/mkdev.h>
  44
  45 #define A_CNT(arr)      (sizeof (arr) / sizeof (arr[0]))
  46 #define A_END(arr)      (&arr[A_CNT(arr)])
  47 #define A_LAST(arr)     (&arr[A_CNT(arr) - 1])
  48
  49 #define nilp(t)         ((t *)0)
  50 #define nil(t)          ((t)0)
  51 #define noop
  52
  53 typedef int     (*pfi_t)();
  54 typedef void    (*pfv_t)();
  55
  56 #define BE32_EQL(a, b)  (((uint8_t *)a)[0] == ((uint8_t *)b)[0] && \
  57         ((uint8_t *)a)[1] == ((uint8_t *)b)[1] && \
  58         ((uint8_t *)a)[2] == ((uint8_t *)b)[2] && \
  59         ((uint8_t *)a)[3] == ((uint8_t *)b)[3])
  60 #define BE16_EQL(a, b)  (((uint8_t *)a)[0] == ((uint8_t *)b)[0] && \
  61         ((uint8_t *)a)[1] == ((uint8_t *)b)[1])
  62 #define BE16_TO_U16(a)  ((((uint16_t)((uint8_t *)a)[0] << 8) | \
  63         ((uint16_t)((uint8_t *)a)[1])) & 0xFFFF)
  64 #define BE32_TO_U32(a)  ((((uint32_t)((uint8_t *)a)[0]) << 24) | \
  65         (((uint32_t)((uint8_t *)a)[1]) << 16) | \
  66         (((uint32_t)((uint8_t *)a)[2]) << 8)  | \
  67         ((uint32_t)((uint8_t *)a)[3]))
  68 #define U16_TO_BE16(u, a) ((((uint8_t *)a)[0] = (uint8_t)((u) >> 8)), \
  69         (((uint8_t *)a)[1] = (uint8_t)(u)))
  70 #define U32_TO_BE32(u, a) ((((uint8_t *)a)[0] = (uint8_t)((u) >> 24)), \
  71         (((uint8_t *)a)[1] = (uint8_t)((u) >> 16)), \
  72         (((uint8_t *)a)[2] = (uint8_t)((u) >> 8)), \
  73         (((uint8_t *)a)[3] = (uint8_t)(u)))
  74
  75 /*
  76  * Local Environment Definition, this may and should override the
  77  * the default definitions above where the local environment differs.
  78  */
  79 #include <inet/led.h>
  80 #include <sys/isa_defs.h>
  81
  82 #ifdef  _BIG_ENDIAN
  83 #define ABE32_TO_U32(p)         (*((uint32_t *)p))
  84 #define ABE16_TO_U16(p)         (*((uint16_t *)p))
  85 #define U16_TO_ABE16(u, p)      (*((uint16_t *)p) = (u))
  86 #define U32_TO_ABE16(u, p)      U16_TO_ABE16(u, p)
  87 #define U32_TO_ABE32(u, p)      (*((uint32_t *)p) = (u))
  88 #else
  89 #define ABE16_TO_U16(p)         BE16_TO_U16(p)
  90 #define ABE32_TO_U32(p)         BE32_TO_U32(p)
  91 #define U16_TO_ABE16(u, p)      U16_TO_BE16(u, p)
  92 #define U32_TO_ABE16(u, p)      U16_TO_ABE16(u, p)
  93 #define U32_TO_ABE32(u, p)      U32_TO_BE32(u, p)
  94 #endif
  95
  96 #define INET_MIN_DEV            2       /* minimum minor device number */
  97
  98 #ifdef _KERNEL
  99 #include <sys/stream.h>
 100
 101 extern void *inet_minor_create(char *, dev_t, dev_t, int);
 102 extern void inet_minor_destroy(void *);
 103 extern dev_t inet_minor_alloc(void *);
 104 extern void inet_minor_free(void *, dev_t);
 105 extern void inet_freemsg(mblk_t *);
 106
 107 #endif  /* _KERNEL */
 108
 109 #ifdef  __cplusplus
 110 }
 111 #endif
 112
 113 #endif  /* _INET_COMMON_H */