2 * Copyright (c) 2000 - 2007 Kungliga Tekniska Högskolan
3 * (Royal Institute of Technology, Stockholm, Sweden).
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34 #include "kuser_locl.h"
35 #include <parse_units.h>
37 static char *client_principal_str = NULL;
38 static krb5_principal client_principal;
39 static char *server_principal_str = NULL;
40 static krb5_principal server_principal;
42 static char *ccache_str = NULL;
44 static char *ticket_flags_str = NULL;
45 static TicketFlags ticket_flags;
46 static char *keytab_file = NULL;
47 static char *enctype_string = NULL;
48 static int expiration_time = 3600;
49 static struct getarg_strings client_addresses;
50 static int version_flag = 0;
51 static int help_flag = 0;
52 static int use_krb5 = 1;
54 static const char *enc_type = "des-cbc-md5";
61 encode_ticket (krb5_context context,
71 EncryptedData enc_part;
75 memset (&enc_part, 0, sizeof(enc_part));
76 memset (&ticket, 0, sizeof(ticket));
82 et.flags = cred->flags.b;
83 et.key = cred->session;
84 et.crealm = cred->client->realm;
85 copy_PrincipalName(&cred->client->name, &et.cname);
87 krb5_data empty_string;
89 krb5_data_zero(&empty_string);
90 et.transited.tr_type = DOMAIN_X500_COMPRESS;
91 et.transited.contents = empty_string;
93 et.authtime = cred->times.authtime;
95 et.endtime = cred->times.endtime;
97 et.caddr = &cred->addresses;
98 et.authorization_data = NULL; /* XXX allow random authorization_data */
101 * Encrypt `enc_part' of ticket with service key
104 ASN1_MALLOC_ENCODE(EncTicketPart, buf, len, &et, &size, ret);
106 krb5_err(context, 1, ret, "EncTicketPart");
108 ret = krb5_crypto_init(context, skey, etype, &crypto);
110 krb5_err(context, 1, ret, "krb5_crypto_init");
111 ret = krb5_encrypt_EncryptedData (context,
119 krb5_err(context, 1, ret, "krb5_encrypt_EncryptedData");
122 krb5_crypto_destroy(context, crypto);
129 ticket.realm = cred->server->realm;
130 copy_PrincipalName(&cred->server->name, &ticket.sname);
132 ASN1_MALLOC_ENCODE(Ticket, buf, len, &ticket, &size, ret);
134 krb5_err (context, 1, ret, "encode_Ticket");
136 krb5_data_copy(&cred->ticket, buf, len);
145 create_krb5_tickets (krb5_context context, krb5_keytab kt)
148 krb5_keytab_entry entry;
153 memset (&cred, 0, sizeof(cred));
155 ret = krb5_string_to_enctype (context, enc_type, &etype);
157 krb5_err (context, 1, ret, "krb5_string_to_enctype");
158 ret = krb5_kt_get_entry (context, kt, server_principal,
161 krb5_err (context, 1, ret, "krb5_kt_get_entry");
168 ret = krb5_copy_principal (context, client_principal, &cred.client);
170 krb5_err (context, 1, ret, "krb5_copy_principal");
171 ret = krb5_copy_principal (context, server_principal, &cred.server);
173 krb5_err (context, 1, ret, "krb5_copy_principal");
174 krb5_generate_random_keyblock(context, etype, &cred.session);
176 cred.times.authtime = time(NULL);
177 cred.times.starttime = time(NULL);
178 cred.times.endtime = time(NULL) + expiration_time;
179 cred.times.renew_till = 0;
180 krb5_data_zero(&cred.second_ticket);
182 ret = krb5_get_all_client_addrs (context, &cred.addresses);
184 krb5_err (context, 1, ret, "krb5_get_all_client_addrs");
185 cred.flags.b = ticket_flags;
189 * Encode encrypted part of ticket
192 encode_ticket (context, &entry.keyblock, etype, entry.vno, &cred);
199 ret = krb5_cc_resolve(context, ccache_str, &ccache);
201 krb5_err (context, 1, ret, "krb5_cc_resolve");
203 ret = krb5_cc_default (context, &ccache);
205 krb5_err (context, 1, ret, "krb5_cc_default");
208 ret = krb5_cc_initialize (context, ccache, cred.client);
210 krb5_err (context, 1, ret, "krb5_cc_initialize");
212 ret = krb5_cc_store_cred (context, ccache, &cred);
214 krb5_err (context, 1, ret, "krb5_cc_store_cred");
216 krb5_free_cred_contents (context, &cred);
217 krb5_cc_close (context, ccache);
227 setup_env (krb5_context context, krb5_keytab *kt)
232 ret = krb5_kt_resolve (context, keytab_file, kt);
234 ret = krb5_kt_default (context, kt);
236 krb5_err (context, 1, ret, "resolving keytab");
238 if (client_principal_str == NULL)
239 krb5_errx (context, 1, "missing client principal");
240 ret = krb5_parse_name (context, client_principal_str, &client_principal);
242 krb5_err (context, 1, ret, "resolvning client name");
244 if (server_principal_str == NULL)
245 krb5_errx (context, 1, "missing server principal");
246 ret = krb5_parse_name (context, server_principal_str, &server_principal);
248 krb5_err (context, 1, ret, "resolvning client name");
250 if (ticket_flags_str) {
251 int ticket_flags_int;
253 ticket_flags_int = parse_flags(ticket_flags_str,
254 asn1_TicketFlags_units(), 0);
255 if (ticket_flags_int <= 0) {
256 krb5_warnx (context, "bad ticket flags: `%s'", ticket_flags_str);
257 print_flags_table (asn1_TicketFlags_units(), stderr);
260 if (ticket_flags_int)
261 ticket_flags = int2TicketFlags (ticket_flags_int);
269 struct getargs args[] = {
270 { "ccache", 0, arg_string, &ccache_str,
271 "name of kerberos 5 credential cache", "cache-name"},
272 { "server", 's', arg_string, &server_principal_str,
273 "name of server principal", NULL },
274 { "client", 'c', arg_string, &client_principal_str,
275 "name of client principal", NULL },
276 { "keytab", 'k', arg_string, &keytab_file,
277 "name of keytab file", NULL },
278 { "krb5", '5', arg_flag, &use_krb5,
279 "create a kerberos 5 ticket", NULL },
280 { "expire-time", 'e', arg_integer, &expiration_time,
281 "lifetime of ticket in seconds", NULL },
282 { "client-addresses", 'a', arg_strings, &client_addresses,
283 "addresses of client", NULL },
284 { "enc-type", 't', arg_string, &enctype_string,
285 "encryption type", NULL },
286 { "ticket-flags", 'f', arg_string, &ticket_flags_str,
287 "ticket flags for krb5 ticket", NULL },
288 { "version", 0, arg_flag, &version_flag, "Print version",
290 { "help", 0, arg_flag, &help_flag, NULL,
297 arg_printusage (args,
298 sizeof(args) / sizeof(args[0]),
305 main (int argc, char **argv)
309 krb5_context context;
312 setprogname (argv[0]);
314 ret = krb5_init_context (&context);
316 errx(1, "krb5_init_context failed: %u", ret);
318 if (getarg(args, sizeof(args) / sizeof(args[0]), argc, argv, &optidx))
330 enc_type = enctype_string;
332 setup_env(context, &kt);
335 create_krb5_tickets(context, kt);
337 krb5_kt_close(context, kt);