1  /*
  2   * Copyright (c) 2010 Kungliga Tekniska Högskolan
  3   * (Royal Institute of Technology, Stockholm, Sweden).
  4   * All rights reserved.
  5   *
  6   * Portions Copyright (c) 2010 Apple Inc. All rights reserved.
  7   *
  8   * Redistribution and use in source and binary forms, with or without
  9   * modification, are permitted provided that the following conditions
 10   * are met:
 11   *
 12   * 1. Redistributions of source code must retain the above copyright
 13   *    notice, this list of conditions and the following disclaimer.
 14   *
 15   * 2. Redistributions in binary form must reproduce the above copyright
 16   *    notice, this list of conditions and the following disclaimer in the
 17   *    documentation and/or other materials provided with the distribution.
 18   *
 19   * 3. Neither the name of KTH nor the names of its contributors may be
 20   *    used to endorse or promote products derived from this software without
 21   *    specific prior written permission.
 22   *
 23   * THIS SOFTWARE IS PROVIDED BY KTH AND ITS CONTRIBUTORS ``AS IS'' AND ANY
 24   * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 25   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 26   * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL KTH OR ITS CONTRIBUTORS BE
 27   * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 28   * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 29   * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
 30   * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
 31   * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
 32   * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
 33   * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */
 34  
 35  #include "krb5_locl.h"
 36  #include <getarg.h>
 37  
 38  /*
 39   *
 40   */
 41  
 42  static char *realm_string = NULL;
 43  static char *uuid_string = NULL;
 44  static char *signing_string = NULL;
 45  static int use_large_flag = 0;
 46  static int version_flag = 0;
 47  static int help_flag	= 0;
 48  
 49  static struct getargs args[] = {
 50      {"realm",		0,	arg_string,	&realm_string,
 51  	"realm", NULL },
 52      {"uuid",		0,	arg_string,	&uuid_string,
 53  	"uuid", NULL },
 54      {"signing-identity",0,	arg_string,	&signing_string,
 55  	"app-name", NULL },
 56      {"use-large",	0,	arg_flag,	&use_large_flag,
 57       "use transport suitable for large packets", NULL },
 58      {"version",		0,	arg_flag,	&version_flag,
 59       "print version", NULL },
 60      {"help",		0,	arg_flag,	&help_flag,
 61       NULL, NULL }
 62  };
 63  
 64  static void
 65  usage (int ret)
 66  {
 67      arg_printusage (args,
 68  		    sizeof(args)/sizeof(*args),
 69  		    NULL,
 70  		    "");
 71      exit (ret);
 72  }
 73  
 74  int
 75  main(int argc, char **argv)
 76  {
 77      krb5_context context;
 78      krb5_error_code ret;
 79      int optidx = 0;
 80      krb5_sendto_ctx ctx = NULL;
 81  
 82      setprogname(argv[0]);
 83  
 84      if(getarg(args, sizeof(args) / sizeof(args[0]), argc, argv, &optidx))
 85  	usage(1);
 86  
 87      if (help_flag)
 88  	usage (0);
 89  
 90      if(version_flag){
 91  	print_version(NULL);
 92  	exit(0);
 93      }
 94  
 95      ret = krb5_init_context (&context);
 96      if (ret)
 97  	errx (1, "krb5_init_context failed: %d", ret);
 98  
 99  
100      if (realm_string == NULL)
101  	errx(1, "missing realm");
102  
103      krb5_data send = {
104  	.data =  /* lha@WELLKNOWN:COM.APPLE.LKDC:localhost */
105  	"\x6a\x81\xb8\x30\x81\xb5\xa1\x03\x02\x01\x05\xa2\x03\x02\x01\x0a"
106  	"\xa4\x81\xa8\x30\x81\xa5\xa0\x07\x03\x05\x00\x40\x01\x00\x00\xa1"
107  	"\x10\x30\x0e\xa0\x03\x02\x01\x01\xa1\x07\x30\x05\x1b\x03\x6c\x68"
108  	"\x61\xa2\x24\x1b\x22\x57\x45\x4c\x4c\x4b\x4e\x4f\x57\x4e\x3a\x43"
109  	"\x4f\x4d\x2e\x41\x50\x50\x4c\x45\x2e\x4c\x4b\x44\x43\x3a\x6c\x6f"
110  	"\x63\x61\x6c\x68\x6f\x73\x74\xa3\x37\x30\x35\xa0\x03\x02\x01\x01"
111  	"\xa1\x2e\x30\x2c\x1b\x06\x6b\x72\x62\x74\x67\x74\x1b\x22\x57\x45"
112  	"\x4c\x4c\x4b\x4e\x4f\x57\x4e\x3a\x43\x4f\x4d\x2e\x41\x50\x50\x4c"
113  	"\x45\x2e\x4c\x4b\x44\x43\x3a\x6c\x6f\x63\x61\x6c\x68\x6f\x73\x74"
114  	"\xa5\x11\x18\x0f\x32\x30\x31\x30\x30\x37\x33\x30\x31\x30\x33\x35"
115  	"\x31\x38\x5a\xa7\x06\x02\x04\x3a\xcc\xb8\xba\xa8\x0e\x30\x0c\x02"
116  	"\x01\x12\x02\x01\x11\x02\x01\x10\x02\x01\x17",
117  	.length = 187
118      }, recv = { .data = NULL, .length = 0 };
119  
120      ret = krb5_sendto_ctx_alloc(context, &ctx);
121      if (ret)
122  	krb5_err(context, 1, ret, "krb5_sendto_ctx_alloc");
123  
124      if (use_large_flag)
125  	krb5_sendto_ctx_add_flags(ctx, KRB5_KRBHST_FLAGS_LARGE_MSG);
126  
127      if (uuid_string || signing_string) {
128  	krb5_uuid uuid;
129  	if (uuid_string)
130  	    if (uuid_parse(uuid_string, uuid) != 0)
131  		errx(1, "Failed to parse `%s` as a uuid", uuid_string);
132  	ret = krb5_sendto_set_delegated_app(context, ctx, uuid_string ? uuid : NULL, 0, signing_string);
133  	if (ret)
134  	    krb5_err(context, 1, ret, "krb5_sendto_set_delegated_app");
135      }
136  
137      ret = krb5_sendto_context(context, ctx, &send, realm_string, &recv);
138      if (ret)
139  	krb5_err(context, 1, ret, "krb5_sendto_context");
140  
141      krb5_sendto_ctx_free(context, ctx);
142  
143      krb5_free_context(context);
144  
145      return 0;
146  }