OSX/libsecurity_cdsa_utilities/lib/cssmerrors.cpp

   1 /*
   2  * Copyright (c) 2000-2004,2006,2011,2013-2014 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
  25 //
  26 // cssmerrors
  27 //
  28 #include <security_cdsa_utilities/cssmerrors.h>
  29 #include <security_utilities/mach++.h>
  30 #include <Security/cssmapple.h>
  31 #include <Security/SecBase.h>
  32 #include <Security/SecBasePriv.h>
  33
  34 namespace Security {
  35
  36
  37 CssmError::CssmError(CSSM_RETURN err, bool suppresslogging) : error(err)
  38 {
  39     SECURITY_EXCEPTION_THROW_CSSM(this, err);
  40
  41     if(!suppresslogging || secinfoenabled("security_exception")) {
  42         snprintf(whatBuffer, whatBufferSize, "CSSM Exception: %d %s", err, cssmErrorString(err));
  43         switch(err) {
  44             /* reduce log noise by filtering out some non-error exceptions */
  45             case CSSMERR_CL_UNKNOWN_TAG:
  46                 break;
  47             default:
  48                 secnotice("security_exception", "%s", what());
  49                 LogBacktrace();
  50                 break;
  51         }
  52     }
  53 }
  54
  55
  56 const char *CssmError::what() const throw ()
  57 {
  58     return whatBuffer;
  59 }
  60
  61
  62 OSStatus CssmError::osStatus() const
  63 {
  64         if (error == CSSM_ERRCODE_INVALID_POINTER)
  65         {
  66                 return errSecParam;
  67         }
  68
  69         return error;
  70 }
  71
  72
  73 int CssmError::unixError() const
  74 {
  75         OSStatus err = osStatus();
  76
  77         // embedded UNIX errno values are returned verbatim
  78         if (err >= errSecErrnoBase && err <= errSecErrnoLimit)
  79                 return err - errSecErrnoBase;
  80
  81         // re-map certain CSSM errors
  82     switch (err) {
  83         case CSSM_ERRCODE_MEMORY_ERROR:
  84                 return ENOMEM;
  85         case CSSMERR_APPLEDL_DISK_FULL:
  86                 return ENOSPC;
  87         case CSSMERR_APPLEDL_QUOTA_EXCEEDED:
  88                 return EDQUOT;
  89         case CSSMERR_APPLEDL_FILE_TOO_BIG:
  90                 return EFBIG;
  91         default:
  92                 // cannot map this to errno space
  93                 return -1;
  94     }
  95 }
  96
  97
  98 void CssmError::throwMe(CSSM_RETURN err)
  99 {
 100         throw CssmError(err, false);
 101 }
 102
 103 void CssmError::throwMeNoLogging(CSSM_RETURN err)
 104 {
 105     throw CssmError(err, true);
 106 }
 107
 108
 109 CSSM_RETURN CssmError::merge(CSSM_RETURN error, CSSM_RETURN base)
 110 {
 111         if (0 < error && error < CSSM_ERRORCODE_COMMON_EXTENT) {
 112                 return base + error;
 113         } else {
 114                 return error;
 115         }
 116 }
 117
 118 //
 119 // Get a CSSM_RETURN from a CommonError
 120 //
 121 CSSM_RETURN CssmError::cssmError(const CommonError &error, CSSM_RETURN base)
 122 {
 123         if (const CssmError *cssm = dynamic_cast<const CssmError *>(&error)) {
 124                 return cssmError(cssm->error, base);
 125         } else if (const MachPlusPlus::Error *mach = dynamic_cast<const MachPlusPlus::Error *>(&error)) {
 126                 switch (mach->error) {
 127                 case BOOTSTRAP_UNKNOWN_SERVICE:
 128                 case MIG_SERVER_DIED:
 129                         return CSSM_ERRCODE_SERVICE_NOT_AVAILABLE;
 130                 default:
 131                         return CSSM_ERRCODE_INTERNAL_ERROR;
 132                 }
 133         } else {
 134                 return error.osStatus();
 135         }
 136 }
 137
 138 CSSM_RETURN CssmError::cssmError(CSSM_RETURN error, CSSM_RETURN base)
 139 {
 140     if (0 < error && error < CSSM_ERRORCODE_COMMON_EXTENT) {
 141         return base + error;
 142     } else {
 143         return error;
 144     }
 145 }
 146
 147
 148 }   // namespace Security