OSX/libsecurityd/lib/xdr_auth.c

   1 /*
   2  * Copyright (c) 2006,2011-2012,2014 Apple 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
  30 bool_t
  31 xdr_AuthorizationItem(XDR *xdrs, AuthorizationItem *objp)
  32 {
  33     if (!sec_xdr_charp(xdrs, (char **)&objp->name, ~0))
  34                 return (FALSE);
  35
  36     u_int valueLength;
  37
  38     if (xdrs->x_op == XDR_ENCODE) {
  39                 if (objp->valueLength > (u_int)~0)
  40                         return (FALSE);
  41                 valueLength = (u_int)objp->valueLength;
  42     }
  43
  44     if (!sec_xdr_bytes(xdrs, (uint8_t **)&objp->value, &valueLength, ~0))
  45                 return (FALSE);
  46
  47     if (xdrs->x_op == XDR_DECODE)
  48                 objp->valueLength = valueLength;
  49
  50         // This is only ever 32 bits, but prototyped with long on 32 bit and int on 64 bit to fall in line with UInt32
  51     if (!xdr_u_long(xdrs, &objp->flags))
  52                 return (FALSE);
  53
  54     return (TRUE);
  55 }
  56
  57 bool_t
  58 xdr_AuthorizationItemSet(XDR *xdrs, AuthorizationItemSet *objp)
  59 {
  60     return sec_xdr_array(xdrs, (uint8_t **)&objp->items, (u_int *)&objp->count, ~0, sizeof(AuthorizationItem), (xdrproc_t)xdr_AuthorizationItem);
  61 }
  62
  63 bool_t
  64 xdr_AuthorizationItemSetPtr(XDR *xdrs, AuthorizationItemSet **objp)
  65 {
  66         return sec_xdr_reference(xdrs, (uint8_t **)objp,sizeof(AuthorizationItemSet), (xdrproc_t)xdr_AuthorizationItemSet);
  67 }
  68
  69 inline bool_t copyin_AuthorizationItemSet(const AuthorizationItemSet *rights, void **copy, mach_msg_size_t *size)
  70 {
  71         return copyin((AuthorizationItemSet *)rights, (xdrproc_t)xdr_AuthorizationItemSet, copy, size);
  72 }
  73
  74 inline bool_t copyout_AuthorizationItemSet(const void *copy, mach_msg_size_t size, AuthorizationItemSet **rights)
  75 {
  76         u_int length = 0;
  77         void *data = NULL; // allocate data for us
  78         bool_t ret = copyout(copy, size, (xdrproc_t)xdr_AuthorizationItemSetPtr, &data, &length);
  79         if (ret)
  80                 *rights = data;
  81     return ret;
  82 }