source3/libads/krb5_errs.c

   1 /*
   2  *  Unix SMB/CIFS implementation.
   3  *  Kerberos error mapping functions
   4  *  Copyright (C) Guenther Deschner 2005
   5  *
   6  *  This program is free software; you can redistribute it and/or modify
   7  *  it under the terms of the GNU General Public License as published by
   8  *  the Free Software Foundation; either version 2 of the License, or
   9  *  (at your option) any later version.
  10  *
  11  *  This program is distributed in the hope that it will be useful,
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *  GNU General Public License for more details.
  15  *
  16  *  You should have received a copy of the GNU General Public License
  17  *  along with this program; if not, write to the Free Software
  18  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  19  */
  20
  21 #include "includes.h"
  22
  23 #ifdef HAVE_KRB5
  24
  25 static const struct {
  26         int krb5_code;
  27         NTSTATUS ntstatus;
  28 } krb5_to_nt_status_map[] = {
  29         {KRB5_CC_IO, NT_STATUS_UNEXPECTED_IO_ERROR},
  30         {KRB5KDC_ERR_BADOPTION, NT_STATUS_INVALID_PARAMETER},
  31         {KRB5KDC_ERR_CLIENT_REVOKED, NT_STATUS_ACCESS_DENIED},
  32         {KRB5KDC_ERR_C_PRINCIPAL_UNKNOWN, NT_STATUS_INVALID_ACCOUNT_NAME},
  33         {KRB5KDC_ERR_ETYPE_NOSUPP, NT_STATUS_LOGON_FAILURE},
  34 #if defined(KRB5KDC_ERR_KEY_EXPIRED) /* Heimdal */
  35         {KRB5KDC_ERR_KEY_EXPIRED, NT_STATUS_PASSWORD_EXPIRED},
  36 #elif defined(KRB5KDC_ERR_KEY_EXP) /* MIT */
  37         {KRB5KDC_ERR_KEY_EXP, NT_STATUS_PASSWORD_EXPIRED},
  38 #else
  39 #error Neither KRB5KDC_ERR_KEY_EXPIRED nor KRB5KDC_ERR_KEY_EXP available
  40 #endif
  41         {25, NT_STATUS_PASSWORD_EXPIRED}, /* FIXME: bug in heimdal 0.7 krb5_get_init_creds_password (Inappropriate ioctl for device (25)) */
  42         {KRB5KDC_ERR_NULL_KEY, NT_STATUS_LOGON_FAILURE},
  43         {KRB5KDC_ERR_POLICY, NT_STATUS_PASSWORD_RESTRICTION},
  44         {KRB5KDC_ERR_PREAUTH_FAILED, NT_STATUS_LOGON_FAILURE},
  45         {KRB5KDC_ERR_SERVICE_REVOKED, NT_STATUS_ACCESS_DENIED},
  46         {KRB5KDC_ERR_S_PRINCIPAL_UNKNOWN, NT_STATUS_INVALID_ACCOUNT_NAME},
  47         {KRB5KDC_ERR_SUMTYPE_NOSUPP, NT_STATUS_LOGON_FAILURE},
  48         {KRB5KDC_ERR_TGT_REVOKED, NT_STATUS_ACCESS_DENIED},
  49         {KRB5_KDC_UNREACH, NT_STATUS_NO_LOGON_SERVERS},
  50         {KRB5KRB_AP_ERR_BAD_INTEGRITY, NT_STATUS_LOGON_FAILURE},
  51         {KRB5KRB_AP_ERR_MODIFIED, NT_STATUS_LOGON_FAILURE},
  52         {KRB5KRB_AP_ERR_SKEW, NT_STATUS_TIME_DIFFERENCE_AT_DC},
  53         {KRB5KRB_AP_ERR_TKT_EXPIRED, NT_STATUS_LOGON_FAILURE},
  54         {KRB5KRB_ERR_GENERIC, NT_STATUS_UNSUCCESSFUL},
  55         {KRB5KRB_ERR_RESPONSE_TOO_BIG, NT_STATUS_PROTOCOL_UNREACHABLE},
  56         {0, NT_STATUS_OK}
  57 };
  58
  59 static const struct {
  60         NTSTATUS ntstatus;
  61         int krb5_code;
  62 } nt_status_to_krb5_map[] = {
  63         {NT_STATUS_LOGON_FAILURE, KRB5KDC_ERR_PREAUTH_FAILED},
  64         {NT_STATUS_NO_LOGON_SERVERS, KRB5_KDC_UNREACH},
  65         {NT_STATUS_OK, 0}
  66 };
  67
  68 /*****************************************************************************
  69 convert a KRB5 error to a NT status32 code
  70  *****************************************************************************/
  71 NTSTATUS krb5_to_nt_status(int kerberos_error)
  72 {
  73         int i;
  74
  75         if (kerberos_error == 0) {
  76                 return NT_STATUS_OK;
  77         }
  78
  79         for (i=0; NT_STATUS_V(krb5_to_nt_status_map[i].ntstatus); i++) {
  80                 if (kerberos_error == krb5_to_nt_status_map[i].krb5_code)
  81                         return krb5_to_nt_status_map[i].ntstatus;
  82         }
  83
  84         return NT_STATUS_UNSUCCESSFUL;
  85 }
  86
  87 /*****************************************************************************
  88 convert an NT status32 code to a KRB5 error
  89  *****************************************************************************/
  90 int nt_status_to_krb5(NTSTATUS nt_status)
  91 {
  92         int i;
  93
  94         if NT_STATUS_IS_OK(nt_status) {
  95                 return 0;
  96         }
  97
  98         for (i=0; NT_STATUS_V(nt_status_to_krb5_map[i].ntstatus); i++) {
  99                 if (NT_STATUS_EQUAL(nt_status,nt_status_to_krb5_map[i].ntstatus))
 100                         return nt_status_to_krb5_map[i].krb5_code;
 101         }
 102
 103         return KRB5KRB_ERR_GENERIC;
 104 }
 105
 106 #else
 107
 108 /*****************************************************************************
 109 convert a KRB5 error to a NT status32 code
 110  *****************************************************************************/
 111 NTSTATUS krb5_to_nt_status(int kerberos_error)
 112 {
 113         if (kerberos_error == 0) {
 114                 return NT_STATUS_OK;
 115         }
 116
 117         return NT_STATUS_UNSUCCESSFUL;
 118 }
 119
 120 /*****************************************************************************
 121 convert an NT status32 code to a KRB5 error
 122  *****************************************************************************/
 123 int nt_status_to_krb5(NTSTATUS nt_status)
 124 {
 125         if (NT_STATUS_EQUAL(nt_status, NT_STATUS_OK)) {
 126                 return 0;
 127         }
 128         return -1; /* FIXME: what to return here ? */
 129 }
 130
 131 #endif
 132