libsecurityd/lib/xdr_auth.c

   1 /*
   2  * Copyright (c) 2006 Apple Computer, Inc. All Rights Reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License. Please obtain a copy of the License at
  10  * http://www.opensource.apple.com/apsl/ and read it before using this
  11  * file.
  12  *
  13  * The Original Code and all software distributed under the License are
  14  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  15  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  16  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  18  * Please see the License for the specific language governing rights and
  19  * limitations under the License.
  20  *
  21  * @APPLE_LICENSE_HEADER_END@
  22  */
  23
  24 #include "xdr_auth.h"
  25
  26 #include <unistd.h>
  27 #include <stdlib.h>
  28 #include <string.h>
  29 #include <assert.h>
  30
  31 bool_t
  32 xdr_AuthorizationItem(XDR *xdrs, AuthorizationItem *objp)
  33 {
  34     if (!sec_xdr_charp(xdrs, (char **)&objp->name, ~0))
  35                 return (FALSE);
  36
  37     u_int valueLength;
  38
  39     if (xdrs->x_op == XDR_ENCODE) {
  40                 if (objp->valueLength > (u_int)~0)
  41                         return (FALSE);
  42                 valueLength = (u_int)objp->valueLength;
  43     }
  44
  45     if (!sec_xdr_bytes(xdrs, (uint8_t **)&objp->value, &valueLength, ~0))
  46                 return (FALSE);
  47
  48     if (xdrs->x_op == XDR_DECODE)
  49                 objp->valueLength = valueLength;
  50
  51         // This is only ever 32 bits, but prototyped with long on 32 bit and int on 64 bit to fall in line with UInt32
  52     if (!xdr_u_long(xdrs, &objp->flags))
  53                 return (FALSE);
  54
  55     return (TRUE);
  56 }
  57
  58 bool_t
  59 xdr_AuthorizationItemSet(XDR *xdrs, AuthorizationItemSet *objp)
  60 {
  61     return sec_xdr_array(xdrs, (uint8_t **)&objp->items, (u_int *)&objp->count, ~0, sizeof(AuthorizationItem), (xdrproc_t)xdr_AuthorizationItem);
  62 }
  63
  64 bool_t
  65 xdr_AuthorizationItemSetPtr(XDR *xdrs, AuthorizationItemSet **objp)
  66 {
  67         return sec_xdr_reference(xdrs, (uint8_t **)objp,sizeof(AuthorizationItemSet), (xdrproc_t)xdr_AuthorizationItemSet);
  68 }
  69
  70 inline bool_t copyin_AuthorizationItemSet(const AuthorizationItemSet *rights, void **copy, mach_msg_size_t *size)
  71 {
  72         return copyin((AuthorizationItemSet *)rights, (xdrproc_t)xdr_AuthorizationItemSet, copy, size);
  73 }
  74
  75 inline bool_t copyout_AuthorizationItemSet(const void *copy, mach_msg_size_t size, AuthorizationItemSet **rights)
  76 {
  77         u_int length = 0;
  78         void *data = NULL; // allocate data for us
  79         bool_t ret = copyout(copy, size, (xdrproc_t)xdr_AuthorizationItemSetPtr, &data, &length);
  80         if (ret)
  81                 *rights = data;
  82     return ret;
  83 }