dist/openpam/lib/pam_strerror.c

   1 /*-
   2  * Copyright (c) 2002-2003 Networks Associates Technology, Inc.
   3  * Copyright (c) 2004-2007 Dag-Erling Smørgrav
   4  * All rights reserved.
   5  *
   6  * This software was developed for the FreeBSD Project by ThinkSec AS and
   7  * Network Associates Laboratories, the Security Research Division of
   8  * Network Associates, Inc.  under DARPA/SPAWAR contract N66001-01-C-8035
   9  * ("CBOSS"), as part of the DARPA CHATS research program.
  10  *
  11  * Redistribution and use in source and binary forms, with or without
  12  * modification, are permitted provided that the following conditions
  13  * are met:
  14  * 1. Redistributions of source code must retain the above copyright
  15  *    notice, this list of conditions and the following disclaimer.
  16  * 2. Redistributions in binary form must reproduce the above copyright
  17  *    notice, this list of conditions and the following disclaimer in the
  18  *    documentation and/or other materials provided with the distribution.
  19  * 3. The name of the author may not be used to endorse or promote
  20  *    products derived from this software without specific prior written
  21  *    permission.
  22  *
  23  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  26  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  27  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  33  * SUCH DAMAGE.
  34  *
  35  * $Id: pam_strerror.c,v 1.4 2008/01/27 01:23:01 christos Exp $
  36  */
  37
  38 #include <stdio.h>
  39
  40 #include <security/pam_appl.h>
  41
  42 #include "openpam_impl.h"
  43
  44 const char *_pam_err_name[PAM_NUM_ERRORS] = {
  45         "PAM_SUCCESS",
  46         "PAM_OPEN_ERR",
  47         "PAM_SYMBOL_ERR",
  48         "PAM_SERVICE_ERR",
  49         "PAM_SYSTEM_ERR",
  50         "PAM_BUF_ERR",
  51         "PAM_CONV_ERR",
  52         "PAM_PERM_DENIED",
  53         "PAM_MAXTRIES",
  54         "PAM_AUTH_ERR",
  55         "PAM_NEW_AUTHTOK_REQD",
  56         "PAM_CRED_INSUFFICIENT",
  57         "PAM_AUTHINFO_UNAVAIL",
  58         "PAM_USER_UNKNOWN",
  59         "PAM_CRED_UNAVAIL",
  60         "PAM_CRED_EXPIRED",
  61         "PAM_CRED_ERR",
  62         "PAM_ACCT_EXPIRED",
  63         "PAM_AUTHTOK_EXPIRED",
  64         "PAM_SESSION_ERR",
  65         "PAM_AUTHTOK_ERR",
  66         "PAM_AUTHTOK_RECOVERY_ERR",
  67         "PAM_AUTHTOK_LOCK_BUSY",
  68         "PAM_AUTHTOK_DISABLE_AGING",
  69         "PAM_NO_MODULE_DATA",
  70         "PAM_IGNORE",
  71         "PAM_ABORT",
  72         "PAM_TRY_AGAIN",
  73         "PAM_MODULE_UNKNOWN",
  74         "PAM_DOMAIN_UNKNOWN"
  75 };
  76
  77 /*
  78  * XSSO 4.2.1
  79  * XSSO 6 page 92
  80  *
  81  * Get PAM standard error message string
  82  */
  83
  84 const char *
  85 pam_strerror(const pam_handle_t *pamh,
  86         int error_number)
  87 {
  88         static char unknown[16];
  89
  90         /*LINTED unused*/
  91         (void)pamh;
  92
  93         switch (error_number) {
  94         case PAM_SUCCESS:
  95                 return ("success");
  96         case PAM_OPEN_ERR:
  97                 return ("failed to load module");
  98         case PAM_SYMBOL_ERR:
  99                 return ("invalid symbol");
 100         case PAM_SERVICE_ERR:
 101                 return ("error in service module");
 102         case PAM_SYSTEM_ERR:
 103                 return ("system error");
 104         case PAM_BUF_ERR:
 105                 return ("memory buffer error");
 106         case PAM_CONV_ERR:
 107                 return ("conversation failure");
 108         case PAM_PERM_DENIED:
 109                 return ("permission denied");
 110         case PAM_MAXTRIES:
 111                 return ("maximum number of tries exceeded");
 112         case PAM_AUTH_ERR:
 113                 return ("authentication error");
 114         case PAM_NEW_AUTHTOK_REQD:
 115                 return ("new authentication token required");
 116         case PAM_CRED_INSUFFICIENT:
 117                 return ("insufficient credentials");
 118         case PAM_AUTHINFO_UNAVAIL:
 119                 return ("authentication information is unavailable");
 120         case PAM_USER_UNKNOWN:
 121                 return ("unknown user");
 122         case PAM_CRED_UNAVAIL:
 123                 return ("failed to retrieve user credentials");
 124         case PAM_CRED_EXPIRED:
 125                 return ("user credentials have expired");
 126         case PAM_CRED_ERR:
 127                 return ("failed to set user credentials");
 128         case PAM_ACCT_EXPIRED:
 129                 return ("user account has expired");
 130         case PAM_AUTHTOK_EXPIRED:
 131                 return ("password has expired");
 132         case PAM_SESSION_ERR:
 133                 return ("session failure");
 134         case PAM_AUTHTOK_ERR:
 135                 return ("authentication token failure");
 136         case PAM_AUTHTOK_RECOVERY_ERR:
 137                 return ("failed to recover old authentication token");
 138         case PAM_AUTHTOK_LOCK_BUSY:
 139                 return ("authentication token lock busy");
 140         case PAM_AUTHTOK_DISABLE_AGING:
 141                 return ("authentication token aging disabled");
 142         case PAM_NO_MODULE_DATA:
 143                 return ("module data not found");
 144         case PAM_IGNORE:
 145                 return ("ignore this module");
 146         case PAM_ABORT:
 147                 return ("general failure");
 148         case PAM_TRY_AGAIN:
 149                 return ("try again");
 150         case PAM_MODULE_UNKNOWN:
 151                 return ("unknown module type");
 152         case PAM_DOMAIN_UNKNOWN:
 153                 return ("unknown authentication domain");
 154         default:
 155                 snprintf(unknown, sizeof unknown, "#%d", error_number);
 156                 return (unknown);
 157         }
 158 }
 159
 160 /**
 161  * The =pam_strerror function returns a pointer to a string containing a
 162  * textual description of the error indicated by the =error_number
 163  * argument, in the context of the PAM transaction described by the =pamh
 164  * argument.
 165  */