crypto/external/bsd/heimdal/dist/lib/gssapi/ntlm/iter_cred.c

   1 /*      $NetBSD: iter_cred.c,v 1.1.1.2 2014/04/24 12:45:29 pettai Exp $ */
   2
   3 /*
   4  * Copyright (c) 2006 Kungliga Tekniska Högskolan
   5  * (Royal Institute of Technology, Stockholm, Sweden).
   6  * All rights reserved.
   7  *
   8  * Portions Copyright (c) 2009 Apple Inc. All rights reserved.
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted provided that the following conditions
  12  * are met:
  13  *
  14  * 1. Redistributions of source code must retain the above copyright
  15  *    notice, this list of conditions and the following disclaimer.
  16  *
  17  * 2. Redistributions in binary form must reproduce the above copyright
  18  *    notice, this list of conditions and the following disclaimer in the
  19  *    documentation and/or other materials provided with the distribution.
  20  *
  21  * 3. Neither the name of the Institute nor the names of its contributors
  22  *    may be used to endorse or promote products derived from this software
  23  *    without specific prior written permission.
  24  *
  25  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
  26  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  27  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  28  * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
  29  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  30  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  31  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  32  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  33  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  34  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  35  * SUCH DAMAGE.
  36  */
  37
  38 #include "ntlm.h"
  39
  40 void GSSAPI_CALLCONV
  41 _gss_ntlm_iter_creds_f(OM_uint32 flags,
  42                        void *userctx ,
  43                        void (*cred_iter)(void *, gss_OID, gss_cred_id_t))
  44 {
  45 #ifdef HAVE_KCM
  46     krb5_error_code ret;
  47     krb5_context context = NULL;
  48     krb5_storage *request, *response;
  49     krb5_data response_data;
  50
  51     ret = krb5_init_context(&context);
  52     if (ret)
  53         goto done;
  54
  55     ret = krb5_kcm_storage_request(context, KCM_OP_GET_NTLM_USER_LIST, &request);
  56     if (ret)
  57         goto done;
  58
  59     ret = krb5_kcm_call(context, request, &response, &response_data);
  60     krb5_storage_free(request);
  61     if (ret)
  62         goto done;
  63
  64     while (1) {
  65         uint32_t morep;
  66         char *user = NULL, *domain = NULL;
  67         ntlm_cred dn;
  68
  69         ret = krb5_ret_uint32(response, &morep);
  70         if (ret) goto out;
  71
  72         if (!morep) goto out;
  73
  74         ret = krb5_ret_stringz(response, &user);
  75         if (ret) goto out;
  76         ret = krb5_ret_stringz(response, &domain);
  77         if (ret) {
  78             free(user);
  79             goto out;
  80         }
  81
  82         dn = calloc(1, sizeof(*dn));
  83         if (dn == NULL) {
  84             free(user);
  85             free(domain);
  86             goto out;
  87         }
  88         dn->username = user;
  89         dn->domain = domain;
  90
  91         cred_iter(userctx, GSS_NTLM_MECHANISM, (gss_cred_id_t)dn);
  92     }
  93  out:
  94     krb5_storage_free(response);
  95     krb5_data_free(&response_data);
  96  done:
  97     if (context)
  98         krb5_free_context(context);
  99 #endif /* HAVE_KCM */
 100     (*cred_iter)(userctx, NULL, NULL);
 101 }