crypto/heimdal/lib/gssapi/mech/gss_add_cred_with_password.c

   1 /*-
   2  * Copyright (c) 2005 Doug Rabson
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  *
  14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  24  * SUCH DAMAGE.
  25  *
  26  *      $FreeBSD: src/lib/libgssapi/gss_add_cred.c,v 1.1 2005/12/29 14:40:20 dfr Exp $
  27  */
  28
  29 #include "mech_locl.h"
  30
  31 GSSAPI_LIB_FUNCTION OM_uint32 GSSAPI_LIB_CALL
  32 gss_add_cred_with_password(OM_uint32 *minor_status,
  33     const gss_cred_id_t input_cred_handle,
  34     const gss_name_t desired_name,
  35     const gss_OID desired_mech,
  36     const gss_buffer_t password,
  37     gss_cred_usage_t cred_usage,
  38     OM_uint32 initiator_time_req,
  39     OM_uint32 acceptor_time_req,
  40     gss_cred_id_t *output_cred_handle,
  41     gss_OID_set *actual_mechs,
  42     OM_uint32 *initiator_time_rec,
  43     OM_uint32 *acceptor_time_rec)
  44 {
  45         OM_uint32 major_status;
  46         gssapi_mech_interface m;
  47         struct _gss_cred *cred = (struct _gss_cred *) input_cred_handle;
  48         struct _gss_cred *new_cred;
  49         struct _gss_mechanism_cred *mc;
  50         struct _gss_mechanism_name *mn = NULL;
  51         OM_uint32 junk, time_req;
  52
  53         *minor_status = 0;
  54         *output_cred_handle = GSS_C_NO_CREDENTIAL;
  55         if (initiator_time_rec)
  56             *initiator_time_rec = 0;
  57         if (acceptor_time_rec)
  58             *acceptor_time_rec = 0;
  59         if (actual_mechs)
  60             *actual_mechs = GSS_C_NO_OID_SET;
  61
  62         m = __gss_get_mechanism(desired_mech);
  63         if (m == NULL) {
  64                 *minor_status = 0;
  65                 return (GSS_S_BAD_MECH);
  66         }
  67
  68         new_cred = calloc(1, sizeof(struct _gss_cred));
  69         if (new_cred == NULL) {
  70                 *minor_status = ENOMEM;
  71                 return (GSS_S_FAILURE);
  72         }
  73         HEIM_SLIST_INIT(&new_cred->gc_mc);
  74
  75         /*
  76          * Copy credentials from un-desired mechanisms to the new credential.
  77          */
  78         if (cred) {
  79                 HEIM_SLIST_FOREACH(mc, &cred->gc_mc, gmc_link) {
  80                         struct _gss_mechanism_cred *copy_mc;
  81
  82                         if (gss_oid_equal(mc->gmc_mech_oid, desired_mech)) {
  83                                 continue;
  84                         }
  85                         copy_mc = _gss_copy_cred(mc);
  86                         if (copy_mc == NULL) {
  87                                 gss_release_cred(&junk, (gss_cred_id_t *)&new_cred);
  88                                 *minor_status = ENOMEM;
  89                                 return (GSS_S_FAILURE);
  90                         }
  91                         HEIM_SLIST_INSERT_HEAD(&new_cred->gc_mc, copy_mc, gmc_link);
  92                 }
  93         }
  94
  95         /*
  96          * Figure out a suitable mn, if any.
  97          */
  98         if (desired_name != GSS_C_NO_NAME) {
  99                 major_status = _gss_find_mn(minor_status,
 100                                             (struct _gss_name *) desired_name,
 101                                             desired_mech,
 102                                             &mn);
 103                 if (major_status != GSS_S_COMPLETE) {
 104                         gss_release_cred(&junk, (gss_cred_id_t *)&new_cred);
 105                         return (major_status);
 106                 }
 107         }
 108
 109         if (cred_usage == GSS_C_BOTH)
 110                 time_req = initiator_time_req > acceptor_time_req ? acceptor_time_req : initiator_time_req;
 111         else if (cred_usage == GSS_C_INITIATE)
 112                 time_req = initiator_time_req;
 113         else
 114                 time_req = acceptor_time_req;
 115
 116         major_status = _gss_acquire_mech_cred(minor_status, m, mn,
 117                                               GSS_C_CRED_PASSWORD, password,
 118                                               time_req, desired_mech,
 119                                               cred_usage, &mc);
 120         if (major_status != GSS_S_COMPLETE) {
 121                 gss_release_cred(&junk, (gss_cred_id_t *)&new_cred);
 122                 return (major_status);
 123         }
 124
 125         HEIM_SLIST_INSERT_HEAD(&new_cred->gc_mc, mc, gmc_link);
 126
 127         if (actual_mechs || initiator_time_rec || acceptor_time_rec) {
 128                 OM_uint32 time_rec;
 129
 130                 major_status = gss_inquire_cred(minor_status,
 131                                                 (gss_cred_id_t)new_cred,
 132                                                 NULL,
 133                                                 &time_rec,
 134                                                 NULL,
 135                                                 actual_mechs);
 136                 if (GSS_ERROR(major_status)) {
 137                         gss_release_cred(&junk, (gss_cred_id_t *)&new_cred);
 138                         return (major_status);
 139                 }
 140                 if (initiator_time_rec &&
 141                     (cred_usage == GSS_C_INITIATE || cred_usage == GSS_C_BOTH))
 142                         *initiator_time_rec = time_rec;
 143                 if (acceptor_time_rec &&
 144                     (cred_usage == GSS_C_ACCEPT || cred_usage == GSS_C_BOTH))
 145                         *acceptor_time_rec = time_rec;
 146         }
 147
 148         *output_cred_handle = (gss_cred_id_t) new_cred;
 149         return (GSS_S_COMPLETE);
 150 }