lib/gssapi/test_cred.c

   1 /*
   2  * Copyright (c) 2003-2004 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 KTH nor the names of its contributors may be
  18  *    used to endorse or promote products derived from this software without
  19  *    specific prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY KTH AND ITS CONTRIBUTORS ``AS IS'' AND ANY
  22  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  24  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL KTH OR ITS CONTRIBUTORS BE
  25  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  26  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  27  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
  28  * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
  29  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
  30  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
  31  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  32  */
  33
  34 #ifdef HAVE_CONFIG_H
  35 #include <config.h>
  36 #endif
  37
  38 #include <roken.h>
  39 #include <stdio.h>
  40 #include <stdlib.h>
  41 #include <string.h>
  42 #include <stdarg.h>
  43 #include <gssapi.h>
  44 #include <gssapi_krb5.h>
  45 #include <gssapi_spnego.h>
  46 #include <err.h>
  47 #include <getarg.h>
  48
  49 static int anon_flag    = 0;
  50
  51 static void
  52 gss_print_errors (int min_stat)
  53 {
  54     OM_uint32 new_stat;
  55     OM_uint32 msg_ctx = 0;
  56     gss_buffer_desc status_string;
  57     OM_uint32 ret;
  58
  59     do {
  60         ret = gss_display_status (&new_stat,
  61                                   min_stat,
  62                                   GSS_C_MECH_CODE,
  63                                   GSS_C_NO_OID,
  64                                   &msg_ctx,
  65                                   &status_string);
  66         if (!GSS_ERROR(ret)) {
  67             fprintf (stderr, "%.*s\n", (int)status_string.length,
  68                                         (char *)status_string.value);
  69             gss_release_buffer (&new_stat, &status_string);
  70         }
  71     } while (!GSS_ERROR(ret) && msg_ctx != 0);
  72 }
  73
  74 static void
  75 gss_err(int exitval, int status, const char *fmt, ...)
  76 {
  77     va_list args;
  78
  79     va_start(args, fmt);
  80     vwarnx (fmt, args);
  81     gss_print_errors (status);
  82     va_end(args);
  83     exit (exitval);
  84 }
  85
  86 static void
  87 acquire_release_loop(gss_name_t name, int counter, gss_cred_usage_t usage)
  88 {
  89     OM_uint32 maj_stat, min_stat;
  90     gss_cred_id_t cred;
  91     int i;
  92
  93     for (i = 0; i < counter; i++) {
  94         maj_stat = gss_acquire_cred(&min_stat, name,
  95                                     GSS_C_INDEFINITE,
  96                                     GSS_C_NO_OID_SET,
  97                                     usage,
  98                                     &cred,
  99                                     NULL,
 100                                     NULL);
 101         if (maj_stat != GSS_S_COMPLETE)
 102             gss_err(1, min_stat, "aquire %d %d != GSS_S_COMPLETE",
 103                     i, (int)maj_stat);
 104
 105         maj_stat = gss_release_cred(&min_stat, &cred);
 106         if (maj_stat != GSS_S_COMPLETE)
 107             gss_err(1, min_stat, "release %d %d != GSS_S_COMPLETE",
 108                     i, (int)maj_stat);
 109     }
 110 }
 111
 112
 113 static void
 114 acquire_add_release_add(gss_name_t name, gss_cred_usage_t usage)
 115 {
 116     OM_uint32 maj_stat, min_stat;
 117     gss_cred_id_t cred, cred2, cred3;
 118     gss_OID mech_oid = anon_flag ? GSS_SANON_X25519_MECHANISM : GSS_KRB5_MECHANISM;
 119
 120     maj_stat = gss_acquire_cred(&min_stat, name,
 121                                 GSS_C_INDEFINITE,
 122                                 GSS_C_NO_OID_SET,
 123                                 usage,
 124                                 &cred,
 125                                 NULL,
 126                                 NULL);
 127     if (maj_stat != GSS_S_COMPLETE)
 128         gss_err(1, min_stat, "aquire %d != GSS_S_COMPLETE", (int)maj_stat);
 129
 130     maj_stat = gss_add_cred(&min_stat,
 131                             cred,
 132                             GSS_C_NO_NAME,
 133                             mech_oid,
 134                             usage,
 135                             GSS_C_INDEFINITE,
 136                             GSS_C_INDEFINITE,
 137                             &cred2,
 138                             NULL,
 139                             NULL,
 140                             NULL);
 141
 142     if (maj_stat != GSS_S_COMPLETE)
 143         gss_err(1, min_stat, "add_cred %d != GSS_S_COMPLETE", (int)maj_stat);
 144
 145     maj_stat = gss_release_cred(&min_stat, &cred);
 146     if (maj_stat != GSS_S_COMPLETE)
 147         gss_err(1, min_stat, "release %d != GSS_S_COMPLETE", (int)maj_stat);
 148
 149     maj_stat = gss_add_cred(&min_stat,
 150                             cred2,
 151                             GSS_C_NO_NAME,
 152                             mech_oid,
 153                             GSS_C_BOTH,
 154                             GSS_C_INDEFINITE,
 155                             GSS_C_INDEFINITE,
 156                             &cred3,
 157                             NULL,
 158                             NULL,
 159                             NULL);
 160     if (maj_stat != GSS_S_COMPLETE)
 161         gss_err(1, min_stat, "add_cred 2 %d != GSS_S_COMPLETE", (int)maj_stat);
 162
 163     maj_stat = gss_release_cred(&min_stat, &cred2);
 164     if (maj_stat != GSS_S_COMPLETE)
 165         gss_err(1, min_stat, "release 2 %d != GSS_S_COMPLETE", (int)maj_stat);
 166
 167     maj_stat = gss_release_cred(&min_stat, &cred3);
 168     if (maj_stat != GSS_S_COMPLETE)
 169         gss_err(1, min_stat, "release 3 %d != GSS_S_COMPLETE", (int)maj_stat);
 170 }
 171
 172 static int version_flag = 0;
 173 static int help_flag    = 0;
 174
 175 static struct getargs args[] = {
 176     {"anonymous", 0,    arg_flag,       &anon_flag, "try anonymous creds", NULL },
 177     {"version", 0,      arg_flag,       &version_flag, "print version", NULL },
 178     {"help",    0,      arg_flag,       &help_flag,  NULL, NULL }
 179 };
 180
 181 static void
 182 usage (int ret)
 183 {
 184     arg_printusage (args, sizeof(args)/sizeof(*args),
 185                     NULL, "service@host");
 186     exit (ret);
 187 }
 188
 189
 190 int
 191 main(int argc, char **argv)
 192 {
 193     struct gss_buffer_desc_struct name_buffer;
 194     OM_uint32 maj_stat, min_stat;
 195     gss_name_t name;
 196     int optidx = 0;
 197
 198     setprogname(argv[0]);
 199     if(getarg(args, sizeof(args) / sizeof(args[0]), argc, argv, &optidx))
 200         usage(1);
 201
 202     if (help_flag)
 203         usage (0);
 204
 205     if(version_flag){
 206         print_version(NULL);
 207         exit(0);
 208     }
 209
 210     argc -= optidx;
 211     argv += optidx;
 212
 213     if (argc < 1)
 214         errx(1, "argc < 1");
 215
 216     name_buffer.value = argv[0];
 217     name_buffer.length = strlen(argv[0]);
 218
 219     maj_stat = gss_import_name(&min_stat, &name_buffer,
 220                                GSS_C_NT_HOSTBASED_SERVICE,
 221                                &name);
 222     if (maj_stat != GSS_S_COMPLETE)
 223         errx(1, "import name error");
 224
 225     acquire_release_loop(name, 100, GSS_C_ACCEPT);
 226     acquire_release_loop(name, 100, GSS_C_INITIATE);
 227     acquire_release_loop(name, 100, GSS_C_BOTH);
 228
 229     acquire_add_release_add(name, GSS_C_ACCEPT);
 230     acquire_add_release_add(name, GSS_C_INITIATE);
 231     acquire_add_release_add(name, GSS_C_BOTH);
 232
 233     gss_release_name(&min_stat, &name);
 234
 235     return 0;
 236 }