crypto/dist/heimdal/appl/test/nt_gss_client.c

   1 /*
   2  * Copyright (c) 1997 - 1999 Kungliga Tekniska Högskolan
   3  * (Royal Institute of Technology, Stockholm, Sweden).
   4  * All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  *
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  *
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  *
  17  * 3. Neither the name of the Institute nor the names of its contributors
  18  *    may be used to endorse or promote products derived from this software
  19  *    without specific prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
  22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
  25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  31  * SUCH DAMAGE.
  32  */
  33
  34 #include "test_locl.h"
  35 #include <gssapi.h>
  36 #include "nt_gss_common.h"
  37
  38 __RCSID("$Heimdal: nt_gss_client.c 21522 2007-07-12 13:15:04Z lha $"
  39         "$NetBSD$");
  40
  41 /*
  42  * This program tries to act as a client for the sample in `Sample
  43  * SSPI Code' in Windows 2000 RC1 SDK.
  44  */
  45
  46 static int
  47 proto (int sock, const char *hostname, const char *service)
  48 {
  49     struct sockaddr_in remote, local;
  50     socklen_t addrlen;
  51
  52     int context_established = 0;
  53     gss_ctx_id_t context_hdl = GSS_C_NO_CONTEXT;
  54     gss_buffer_t input_token, output_token;
  55     gss_buffer_desc real_input_token, real_output_token;
  56     OM_uint32 maj_stat, min_stat;
  57     gss_name_t server;
  58     gss_buffer_desc name_token;
  59     char *str;
  60
  61     name_token.length = asprintf (&str,
  62                                   "%s@%s", service, hostname);
  63     if (str == NULL)
  64         errx(1, "out of memory");
  65     name_token.value = str;
  66
  67     maj_stat = gss_import_name (&min_stat,
  68                                 &name_token,
  69                                 GSS_C_NT_HOSTBASED_SERVICE,
  70                                 &server);
  71     if (GSS_ERROR(maj_stat))
  72         gss_err (1, min_stat,
  73                  "Error importing name `%s@%s':\n", service, hostname);
  74
  75     addrlen = sizeof(local);
  76     if (getsockname (sock, (struct sockaddr *)&local, &addrlen) < 0
  77         || addrlen != sizeof(local))
  78         err (1, "getsockname(%s)", hostname);
  79
  80     addrlen = sizeof(remote);
  81     if (getpeername (sock, (struct sockaddr *)&remote, &addrlen) < 0
  82         || addrlen != sizeof(remote))
  83         err (1, "getpeername(%s)", hostname);
  84
  85     input_token = &real_input_token;
  86     output_token = &real_output_token;
  87
  88     input_token->length = 0;
  89     output_token->length = 0;
  90
  91     while(!context_established) {
  92         maj_stat =
  93             gss_init_sec_context(&min_stat,
  94                                  GSS_C_NO_CREDENTIAL,
  95                                  &context_hdl,
  96                                  server,
  97                                  GSS_C_NO_OID,
  98                                  GSS_C_MUTUAL_FLAG | GSS_C_SEQUENCE_FLAG,
  99                                  0,
 100                                  GSS_C_NO_CHANNEL_BINDINGS,
 101                                  input_token,
 102                                  NULL,
 103                                  output_token,
 104                                  NULL,
 105                                  NULL);
 106         if (GSS_ERROR(maj_stat))
 107             gss_err (1, min_stat, "gss_init_sec_context");
 108         if (output_token->length != 0)
 109             nt_write_token (sock, output_token);
 110         if (GSS_ERROR(maj_stat)) {
 111             if (context_hdl != GSS_C_NO_CONTEXT)
 112                 gss_delete_sec_context (&min_stat,
 113                                         &context_hdl,
 114                                         GSS_C_NO_BUFFER);
 115             break;
 116         }
 117         if (maj_stat & GSS_S_CONTINUE_NEEDED) {
 118             nt_read_token (sock, input_token);
 119         } else {
 120             context_established = 1;
 121         }
 122
 123     }
 124
 125     /* get_mic */
 126
 127     input_token->length = 3;
 128     input_token->value  = strdup("hej");
 129
 130     maj_stat = gss_get_mic(&min_stat,
 131                            context_hdl,
 132                            GSS_C_QOP_DEFAULT,
 133                            input_token,
 134                            output_token);
 135     if (GSS_ERROR(maj_stat))
 136         gss_err (1, min_stat, "gss_get_mic");
 137
 138     nt_write_token (sock, input_token);
 139     nt_write_token (sock, output_token);
 140
 141     /* wrap */
 142
 143     input_token->length = 7;
 144     input_token->value  = "hemligt";
 145
 146
 147     maj_stat = gss_wrap (&min_stat,
 148                          context_hdl,
 149                          1,
 150                          GSS_C_QOP_DEFAULT,
 151                          input_token,
 152                          NULL,
 153                          output_token);
 154     if (GSS_ERROR(maj_stat))
 155         gss_err (1, min_stat, "gss_wrap");
 156
 157     nt_write_token (sock, output_token);
 158
 159     return 0;
 160 }
 161
 162 int
 163 main(int argc, char **argv)
 164 {
 165     krb5_context context; /* XXX */
 166     int port = client_setup(&context, &argc, argv);
 167     return client_doit (argv[argc], port, service, proto);
 168 }