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  RCSID("$Id$");
 36  
 37  krb5_context context;
 38  
 39  static int
 40  proto (int sock, const char *service)
 41  {
 42      krb5_auth_context auth_context;
 43      krb5_error_code status;
 44      krb5_principal server;
 45      krb5_ticket *ticket;
 46      char *name;
 47      char hostname[MAXHOSTNAMELEN];
 48      krb5_data packet;
 49      krb5_data data;
 50      uint32_t len, net_len;
 51      ssize_t n;
 52  
 53      status = krb5_auth_con_init (context, &auth_context);
 54      if (status)
 55  	krb5_err (context, 1, status, "krb5_auth_con_init");
 56  
 57      status = krb5_auth_con_setaddrs_from_fd (context,
 58  					     auth_context,
 59  					     &sock);
 60  
 61      if (status)
 62  	krb5_err (context, 1, status, "krb5_auth_con_setaddrs_from_fd");
 63  
 64      if(gethostname (hostname, sizeof(hostname)) < 0)
 65  	krb5_err (context, 1, errno, "gethostname");
 66  
 67      status = krb5_sname_to_principal (context,
 68  				      hostname,
 69  				      service,
 70  				      KRB5_NT_SRV_HST,
 71  				      &server);
 72      if (status)
 73  	krb5_err (context, 1, status, "krb5_sname_to_principal");
 74  
 75      status = krb5_recvauth (context,
 76  			    &auth_context,
 77  			    &sock,
 78  			    VERSION,
 79  			    server,
 80  			    0,
 81  			    keytab,
 82  			    &ticket);
 83      if (status)
 84  	krb5_err (context, 1, status, "krb5_recvauth");
 85  
 86      status = krb5_unparse_name (context,
 87  				ticket->client,
 88  				&name);
 89      if (status)
 90  	krb5_err (context, 1, status, "krb5_unparse_name");
 91  
 92      fprintf (stderr, "User is `%s'\n", name);
 93      free (name);
 94  
 95      krb5_data_zero (&data);
 96      krb5_data_zero (&packet);
 97  
 98      n = krb5_net_read (context, &sock, &net_len, 4);
 99      if (n == 0)
100  	krb5_errx (context, 1, "EOF in krb5_net_read");
101      if (n < 0)
102  	krb5_err (context, 1, errno, "krb5_net_read");
103  
104      len = ntohl(net_len);
105  
106      krb5_data_alloc (&packet, len);
107  
108      n = krb5_net_read (context, &sock, packet.data, len);
109      if (n == 0)
110  	krb5_errx (context, 1, "EOF in krb5_net_read");
111      if (n < 0)
112  	krb5_err (context, 1, errno, "krb5_net_read");
113  
114      status = krb5_rd_safe (context,
115  			   auth_context,
116  			   &packet,
117  			   &data,
118  			   NULL);
119      if (status)
120  	krb5_err (context, 1, status, "krb5_rd_safe");
121  
122      fprintf (stderr, "safe packet: %.*s\n", (int)data.length,
123  	    (char *)data.data);
124  
125      n = krb5_net_read (context, &sock, &net_len, 4);
126      if (n == 0)
127  	krb5_errx (context, 1, "EOF in krb5_net_read");
128      if (n < 0)
129  	krb5_err (context, 1, errno, "krb5_net_read");
130  
131      len = ntohl(net_len);
132  
133      krb5_data_alloc (&packet, len);
134  
135      n = krb5_net_read (context, &sock, packet.data, len);
136      if (n == 0)
137  	krb5_errx (context, 1, "EOF in krb5_net_read");
138      if (n < 0)
139  	krb5_err (context, 1, errno, "krb5_net_read");
140  
141      status = krb5_rd_priv (context,
142  			   auth_context,
143  			   &packet,
144  			   &data,
145  			   NULL);
146      if (status)
147  	krb5_err (context, 1, status, "krb5_rd_priv");
148  
149      fprintf (stderr, "priv packet: %.*s\n", (int)data.length,
150  	    (char *)data.data);
151  
152      return 0;
153  }
154  
155  static int
156  doit (int port, const char *service)
157  {
158      mini_inetd (port, NULL);
159  
160      return proto (STDIN_FILENO, service);
161  }
162  
163  int
164  main(int argc, char **argv)
165  {
166      int port = server_setup(&context, argc, argv);
167      return doit (port, service_str);
168  }