1 /* 2 * Copyright (c) 1997 - 2000 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/gssapi.h> 36 #include <gssapi/gssapi_krb5.h> 37 #include <gssapi/gssapi_spnego.h> 38 #include <krb5.h> 39 #include "nt_gss_common.h" 40 41 RCSID("$Id$"); 42 43 /* 44 * This program tries to act as a server for the sample in `Sample 45 * SSPI Code' in Windows 2000 RC1 SDK. 46 * 47 * use --dump-auth to get a binary dump of the authorization data in the ticket 48 */ 49 50 static int help_flag; 51 static int version_flag; 52 static char *port_str; 53 char *service = SERVICE; 54 static char *auth_file; 55 56 static struct getargs args[] = { 57 { "port", 'p', arg_string, &port_str, "port to listen to", "port" }, 58 { "service", 's', arg_string, &service, "service to use", "service" }, 59 { "dump-auth", 0, arg_string, &auth_file, "dump authorization data", 60 "file" }, 61 { "help", 'h', arg_flag, &help_flag }, 62 { "version", 0, arg_flag, &version_flag } 63 }; 64 65 static int num_args = sizeof(args) / sizeof(args[0]); 66 67 static int 68 proto (int sock, const char *service) 69 { 70 struct sockaddr_in remote, local; 71 socklen_t addrlen; 72 gss_ctx_id_t context_hdl = GSS_C_NO_CONTEXT; 73 gss_buffer_t input_token, output_token; 74 gss_buffer_desc real_input_token, real_output_token; 75 OM_uint32 maj_stat, min_stat; 76 gss_name_t client_name; 77 gss_buffer_desc name_token; 78 79 addrlen = sizeof(local); 80 if (getsockname (sock, (struct sockaddr *)&local, &addrlen) < 0 81 || addrlen != sizeof(local)) 82 err (1, "getsockname)"); 83 84 addrlen = sizeof(remote); 85 if (getpeername (sock, (struct sockaddr *)&remote, &addrlen) < 0 86 || addrlen != sizeof(remote)) 87 err (1, "getpeername"); 88 89 input_token = &real_input_token; 90 output_token = &real_output_token; 91 92 do { 93 nt_read_token (sock, input_token); 94 maj_stat = 95 gss_accept_sec_context (&min_stat, 96 &context_hdl, 97 GSS_C_NO_CREDENTIAL, 98 input_token, 99 GSS_C_NO_CHANNEL_BINDINGS, 100 &client_name, 101 NULL, 102 output_token, 103 NULL, 104 NULL, 105 NULL); 106 if(GSS_ERROR(maj_stat)) 107 gss_err (1, min_stat, "gss_accept_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 } while(maj_stat & GSS_S_CONTINUE_NEEDED); 118 119 if (auth_file != NULL) { 120 gss_buffer_desc data; 121 122 maj_stat = gsskrb5_extract_authz_data_from_sec_context(&min_stat, 123 context_hdl, 124 KRB5_AUTHDATA_WIN2K_PAC, 125 &data); 126 if (maj_stat == GSS_S_COMPLETE) { 127 rk_dumpdata(auth_file, data.value, data.length); 128 gss_release_buffer(&min_stat, &data); 129 } 130 } 131 132 maj_stat = gss_display_name (&min_stat, 133 client_name, 134 &name_token, 135 NULL); 136 if (GSS_ERROR(maj_stat)) 137 gss_err (1, min_stat, "gss_display_name"); 138 139 fprintf (stderr, "User is `%.*s'\n", (int)name_token.length, 140 (char *)name_token.value); 141 142 /* write something back */ 143 144 output_token->value = strdup ("hejsan"); 145 output_token->length = strlen (output_token->value) + 1; 146 nt_write_token (sock, output_token); 147 148 output_token->value = strdup ("hoppsan"); 149 output_token->length = strlen (output_token->value) + 1; 150 nt_write_token (sock, output_token); 151 152 return 0; 153 } 154 155 static int 156 doit (int port, const char *service) 157 { 158 int sock, sock2; 159 struct sockaddr_in my_addr; 160 int one = 1; 161 162 sock = socket (AF_INET, SOCK_STREAM, 0); 163 if (sock < 0) 164 err (1, "socket"); 165 166 memset (&my_addr, 0, sizeof(my_addr)); 167 my_addr.sin_family = AF_INET; 168 my_addr.sin_port = port; 169 my_addr.sin_addr.s_addr = INADDR_ANY; 170 171 if (setsockopt (sock, SOL_SOCKET, SO_REUSEADDR, 172 (void *)&one, sizeof(one)) < 0) 173 warn ("setsockopt SO_REUSEADDR"); 174 175 if (bind (sock, (struct sockaddr *)&my_addr, sizeof(my_addr)) < 0) 176 err (1, "bind"); 177 178 if (listen (sock, 1) < 0) 179 err (1, "listen"); 180 181 sock2 = accept (sock, NULL, NULL); 182 if (sock2 < 0) 183 err (1, "accept"); 184 185 return proto (sock2, service); 186 } 187 188 static void 189 usage(int code, struct getargs *args, int num_args) 190 { 191 arg_printusage(args, num_args, NULL, ""); 192 exit(code); 193 } 194 195 static int 196 common_setup(krb5_context *context, int *argc, char **argv, 197 void (*usage)(int, struct getargs*, int)) 198 { 199 int port = 0; 200 *argc = krb5_program_setup(context, *argc, argv, args, num_args, usage); 201 202 if(help_flag) 203 (*usage)(0, args, num_args); 204 if(version_flag) { 205 print_version(NULL); 206 exit(0); 207 } 208 209 if(port_str){ 210 struct servent *s = roken_getservbyname(port_str, "tcp"); 211 if(s) 212 port = s->s_port; 213 else { 214 char *ptr; 215 216 port = strtol (port_str, &ptr, 10); 217 if (port == 0 && ptr == port_str) 218 errx (1, "Bad port `%s'", port_str); 219 port = htons(port); 220 } 221 } 222 223 if (port == 0) 224 port = krb5_getportbyname (*context, PORT, "tcp", 4711); 225 226 return port; 227 } 228 229 static int 230 setup(krb5_context *context, int argc, char **argv) 231 { 232 int port = common_setup(context, &argc, argv, usage); 233 if(argv[argc] != NULL) 234 usage(1, args, num_args); 235 return port; 236 } 237 238 int 239 main(int argc, char **argv) 240 { 241 krb5_context context = NULL; /* XXX */ 242 int port = setup(&context, argc, argv); 243 return doit (port, service); 244 } 245