1 /* 2 * Copyright (c) 2006 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 void 50 gss_print_errors (int min_stat) 51 { 52 OM_uint32 new_stat; 53 OM_uint32 msg_ctx = 0; 54 gss_buffer_desc status_string; 55 OM_uint32 ret; 56 57 do { 58 ret = gss_display_status (&new_stat, 59 min_stat, 60 GSS_C_MECH_CODE, 61 GSS_C_NO_OID, 62 &msg_ctx, 63 &status_string); 64 if (!GSS_ERROR(ret)) { 65 fprintf (stderr, "%.*s\n", (int)status_string.length, 66 (char *)status_string.value); 67 gss_release_buffer (&new_stat, &status_string); 68 } 69 } while (!GSS_ERROR(ret) && msg_ctx != 0); 70 } 71 72 static void 73 gss_err(int exitval, int status, const char *fmt, ...) 74 { 75 va_list args; 76 77 va_start(args, fmt); 78 vwarnx (fmt, args); 79 gss_print_errors (status); 80 va_end(args); 81 exit (exitval); 82 } 83 84 static int version_flag = 0; 85 static int help_flag = 0; 86 87 static struct getargs args[] = { 88 {"version", 0, arg_flag, &version_flag, "print version", NULL }, 89 {"help", 0, arg_flag, &help_flag, NULL, NULL } 90 }; 91 92 static void 93 usage (int ret) 94 { 95 arg_printusage (args, sizeof(args)/sizeof(*args), 96 NULL, "service@host"); 97 exit (ret); 98 } 99 100 101 int 102 main(int argc, char **argv) 103 { 104 gss_buffer_desc name_buffer; 105 OM_uint32 maj_stat, min_stat; 106 gss_name_t name, MNname, MNname2; 107 int optidx = 0; 108 char *str; 109 int len, equal; 110 111 setprogname(argv[0]); 112 if(getarg(args, sizeof(args) / sizeof(args[0]), argc, argv, &optidx)) 113 usage(1); 114 115 if (help_flag) 116 usage (0); 117 118 if(version_flag){ 119 print_version(NULL); 120 exit(0); 121 } 122 123 argc -= optidx; 124 argv += optidx; 125 126 gsskrb5_set_default_realm("MIT.EDU"); 127 128 /* 129 * test import/export 130 */ 131 132 str = NULL; 133 len = asprintf(&str, "ftp@freeze-arrow.mit.edu"); 134 if (len < 0 || str == NULL) 135 errx(1, "asprintf"); 136 137 name_buffer.value = str; 138 name_buffer.length = len; 139 140 maj_stat = gss_import_name(&min_stat, &name_buffer, 141 GSS_C_NT_HOSTBASED_SERVICE, 142 &name); 143 if (maj_stat != GSS_S_COMPLETE) 144 gss_err(1, min_stat, "import name error"); 145 free(str); 146 147 maj_stat = gss_canonicalize_name (&min_stat, 148 name, 149 GSS_KRB5_MECHANISM, 150 &MNname); 151 if (maj_stat != GSS_S_COMPLETE) 152 gss_err(1, min_stat, "canonicalize name error"); 153 154 maj_stat = gss_export_name(&min_stat, 155 MNname, 156 &name_buffer); 157 if (maj_stat != GSS_S_COMPLETE) 158 gss_err(1, min_stat, "export name error (KRB5)"); 159 160 /* 161 * Import the exported name and compare 162 */ 163 164 maj_stat = gss_import_name(&min_stat, &name_buffer, 165 GSS_C_NT_EXPORT_NAME, 166 &MNname2); 167 if (maj_stat != GSS_S_COMPLETE) 168 gss_err(1, min_stat, "import name error (exported KRB5 name)"); 169 170 171 maj_stat = gss_compare_name(&min_stat, MNname, MNname2, &equal); 172 if (maj_stat != GSS_S_COMPLETE) 173 errx(1, "gss_compare_name"); 174 if (!equal) 175 errx(1, "names not equal"); 176 177 gss_release_name(&min_stat, &MNname2); 178 gss_release_buffer(&min_stat, &name_buffer); 179 gss_release_name(&min_stat, &MNname); 180 gss_release_name(&min_stat, &name); 181 182 /* 183 * Import oid less name and compare to mech name. 184 * Dovecot SASL lib does this. 185 */ 186 187 str = NULL; 188 len = asprintf(&str, "lha"); 189 if (len < 0 || str == NULL) 190 errx(1, "asprintf"); 191 192 name_buffer.value = str; 193 name_buffer.length = len; 194 195 maj_stat = gss_import_name(&min_stat, &name_buffer, 196 GSS_C_NO_OID, 197 &name); 198 if (maj_stat != GSS_S_COMPLETE) 199 gss_err(1, min_stat, "import (no oid) name error"); 200 201 maj_stat = gss_import_name(&min_stat, &name_buffer, 202 GSS_KRB5_NT_USER_NAME, 203 &MNname); 204 if (maj_stat != GSS_S_COMPLETE) 205 gss_err(1, min_stat, "import (krb5 mn) name error"); 206 207 free(str); 208 209 maj_stat = gss_compare_name(&min_stat, name, MNname, &equal); 210 if (maj_stat != GSS_S_COMPLETE) 211 errx(1, "gss_compare_name"); 212 if (!equal) 213 errx(1, "names not equal"); 214 215 gss_release_name(&min_stat, &MNname); 216 gss_release_name(&min_stat, &name); 217 218 #if 0 219 maj_stat = gss_canonicalize_name (&min_stat, 220 name, 221 GSS_SPNEGO_MECHANISM, 222 &MNname); 223 if (maj_stat != GSS_S_COMPLETE) 224 gss_err(1, min_stat, "canonicalize name error"); 225 226 227 maj_stat = gss_export_name(&maj_stat, 228 MNname, 229 &name_buffer); 230 if (maj_stat != GSS_S_COMPLETE) 231 gss_err(1, min_stat, "export name error (SPNEGO)"); 232 233 gss_release_name(&min_stat, &MNname); 234 gss_release_buffer(&min_stat, &name_buffer); 235 #endif 236 237 return 0; 238 } 239