src/fsint/afsaux.c

   1 /*
   2  * Copyright 2000, International Business Machines Corporation and others.
   3  * All Rights Reserved.
   4  *
   5  * This software has been released under the terms of the IBM Public
   6  * License.  For details, see the LICENSE file in the top-level source
   7  * directory or online at http://www.openafs.org/dl/license10.html
   8  */
   9
  10 #include <afsconfig.h>
  11 #include <afs/param.h>
  12
  13
  14 #ifdef KERNEL
  15 #if defined(UKERNEL)
  16 #include "afs/sysincludes.h"
  17 #include "afsincludes.h"
  18 #include "rx/xdr.h"
  19 #else /* defined(UKERNEL) */
  20 #if defined(AFS_NBSD50_ENV)
  21 #include "afs/afs_osi.h"
  22 #endif
  23 #if defined(AFS_OSF_ENV) || defined(AFS_LINUX20_ENV) || defined(AFS_DARWIN_ENV) || defined(AFS_FBSD_ENV)
  24 #include "afs/sysincludes.h"
  25 #include "afsincludes.h"
  26 #else
  27 #include "h/types.h"
  28 #include "rx/xdr.h"
  29 #endif
  30 #if !defined(AFS_ALPHA_ENV)
  31 #ifndef XDR_GETINT32
  32 #define XDR_GETINT32    XDR_GETLONG
  33 #endif
  34 #ifndef XDR_PUTINT32
  35 #define XDR_PUTINT32    XDR_PUTLONG
  36 #endif
  37 #endif
  38 #endif /* defined(UKERNEL) */
  39 #include "afsint.h"
  40 #else /* KERNEL */
  41 # include <roken.h>
  42 # include <rx/xdr.h>
  43 # include "afsint.h"
  44 #endif /* KERNEL */
  45
  46 #ifdef KERNEL
  47 #define NVALLOC(a)      osi_Alloc(a)
  48 #define NVFREE(a,b)     osi_Free(a,b)
  49 #else /* KERNEL */
  50 #define MAXBS   2048            /* try to avoid horrible allocs */
  51 static afs_int32 bslosers = 0;
  52 #define NVALLOC(a)      malloc(a)
  53 #define NVFREE(a,b)     free(a)
  54 #endif /* KERNEL */
  55
  56 /* these things are defined in R (but not RX's) library.  For now, we add them
  57     only for the kernel system.  Later, when R is expunged, we'll remove the ifdef */
  58 #ifdef KERNEL
  59 #ifndef AFS_USR_DARWIN_ENV
  60 /*
  61  * Wrapper for xdr_string that can be called directly from
  62  * routines like clnt_call; from user-mode xdr package.
  63  */
  64 #ifndef AFS_SUN5_ENV
  65 #ifndef AFS_HPUX110_ENV
  66 bool_t
  67 xdr_wrapstring(XDR * xdrs, char **cpp)
  68 {
  69     if (xdr_string(xdrs, cpp, 1024)) {
  70         return (TRUE);
  71     }
  72     return (FALSE);
  73 }
  74 #endif /* AFS_HPUX110_ENV */
  75 #endif /* AFS_SUN5_ENV */
  76
  77 #endif
  78 #endif /* KERNEL */
  79
  80 #ifndef KERNEL
  81 bool_t
  82 xdr_CBS(XDR * x, struct CBS * abbs)
  83 {
  84     afs_int32 len;
  85     if (x->x_op == XDR_FREE) {
  86         NVFREE(abbs->SeqBody, abbs->SeqLen);
  87         return TRUE;
  88     }
  89
  90     if (x->x_op == XDR_ENCODE) {
  91         xdr_afs_int32(x, &abbs->SeqLen);
  92         xdr_opaque(x, abbs->SeqBody, abbs->SeqLen);
  93         return TRUE;
  94     } else {
  95         xdr_afs_int32(x, &len);
  96         if (len < 0 || len > MAXBS) {
  97             bslosers++;
  98             return FALSE;
  99         }
 100         if (!abbs->SeqBody)
 101             abbs->SeqBody = NVALLOC(len);
 102         abbs->SeqLen = len;
 103         xdr_opaque(x, abbs->SeqBody, len);
 104         return TRUE;
 105     }
 106 }
 107
 108 bool_t
 109 xdr_BBS(XDR * x, struct BBS * abbs)
 110 {
 111     afs_int32 maxLen, len;
 112     if (x->x_op == XDR_FREE) {
 113         NVFREE(abbs->SeqBody, abbs->MaxSeqLen);
 114         return TRUE;
 115     }
 116
 117     if (x->x_op == XDR_ENCODE) {
 118         xdr_afs_int32(x, &abbs->MaxSeqLen);
 119         xdr_afs_int32(x, &abbs->SeqLen);
 120         xdr_opaque(x, abbs->SeqBody, abbs->SeqLen);
 121         return TRUE;
 122     } else {
 123         xdr_afs_int32(x, &maxLen);
 124         xdr_afs_int32(x, &len);
 125         if (len < 0 || len > MAXBS || len > maxLen) {
 126             bslosers++;
 127             return FALSE;
 128         }
 129         if (!abbs->SeqBody)
 130             abbs->SeqBody = NVALLOC(maxLen);
 131         abbs->MaxSeqLen = maxLen;
 132         abbs->SeqLen = len;
 133         xdr_opaque(x, abbs->SeqBody, len);
 134         return TRUE;
 135     }
 136 }
 137
 138 bool_t
 139 xdr_AFSAccessList(XDR * x, AFSAccessList * abbs)
 140 {
 141     afs_int32 maxLen, len;
 142     if (x->x_op == XDR_FREE) {
 143         NVFREE(abbs->SeqBody, abbs->MaxSeqLen);
 144         return TRUE;
 145     }
 146
 147     if (x->x_op == XDR_ENCODE) {
 148         xdr_afs_int32(x, &abbs->MaxSeqLen);
 149         xdr_afs_int32(x, &abbs->SeqLen);
 150         xdr_opaque(x, abbs->SeqBody, abbs->SeqLen);
 151         return TRUE;
 152     } else {
 153         xdr_afs_int32(x, &maxLen);
 154         xdr_afs_int32(x, &len);
 155         if (len < 0 || len > MAXBS || len > maxLen) {
 156             bslosers++;
 157             return FALSE;
 158         }
 159         if (!abbs->SeqBody)
 160             abbs->SeqBody = NVALLOC(maxLen);
 161         abbs->MaxSeqLen = maxLen;
 162         abbs->SeqLen = len;
 163         xdr_opaque(x, abbs->SeqBody, len);
 164         return TRUE;
 165     }
 166 }
 167 #endif /* KERNEL */